CN113828737A - Molding machine with upper and lower ejection functions and using method thereof - Google Patents
Molding machine with upper and lower ejection functions and using method thereof Download PDFInfo
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- CN113828737A CN113828737A CN202111123350.3A CN202111123350A CN113828737A CN 113828737 A CN113828737 A CN 113828737A CN 202111123350 A CN202111123350 A CN 202111123350A CN 113828737 A CN113828737 A CN 113828737A
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- 238000000465 moulding Methods 0.000 title claims abstract description 24
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000004576 sand Substances 0.000 claims abstract description 148
- 230000000149 penetrating effect Effects 0.000 claims abstract description 7
- 238000000926 separation method Methods 0.000 claims description 32
- 238000005488 sandblasting Methods 0.000 claims description 17
- 238000005056 compaction Methods 0.000 claims description 4
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 238000001746 injection moulding Methods 0.000 claims 3
- 238000005266 casting Methods 0.000 abstract description 7
- 238000005191 phase separation Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 18
- 229910052742 iron Inorganic materials 0.000 description 9
- 230000008569 process Effects 0.000 description 9
- 230000009471 action Effects 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 239000003110 molding sand Substances 0.000 description 3
- 244000035744 Hura crepitans Species 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 241000196324 Embryophyta Species 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C15/00—Moulding machines characterised by the compacting mechanism; Accessories therefor
- B22C15/23—Compacting by gas pressure or vacuum
- B22C15/24—Compacting by gas pressure or vacuum involving blowing devices in which the mould material is supplied in the form of loose particles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C19/00—Components or accessories for moulding machines
- B22C19/02—Mould tables
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention relates to the field of casting and discloses a molding machine for up-down top shooting and a using method thereof, wherein the molding machine comprises a frame, a top-end shooting assembly, a bottom-end shooting assembly and a middle frame assembly; be provided with the center sliding table in the frame and penetrate sand fixed space, be equipped with two piece at least support guide pillars in penetrating sand fixed space, the top is penetrated the sand subassembly and is included the top framed, the bottom is penetrated the sand subassembly and is included the bottom and break away from framed, the bottom advances the sand storehouse, the bottom is penetrated the sand passageway, bottom sandblast seat, the bottom breaks away from framed and is located between bottom sandblast seat and the top framed, the bottom breaks away from framed side and support guide pillar sliding connection, the center subassembly includes center drive arrangement, middle framed and link module, when link module sets up to middle framed downstream, center drive arrangement and middle framed phase separation, the bottom breaks away from framed, the medial surface slope setting of middle framed and top framed, setting through inboard slope, make the sand mould of making closely laminate with the pouring jacket, guarantee that the casting goes on smoothly.
Description
Technical Field
The invention relates to the field of casting, in particular to a molding machine for top-down ejection and a using method thereof.
Background
Molding machines are used in casting plants for producing sand molds. Its main functions are: filling sand, namely filling loose molding sand into a sand box; compacting the molding sand, namely compacting the loose molding sand in the sand box by different methods such as jolt ramming, compaction, jolt ramming, injection pressing and the like, so that the sand mould has necessary strength in the processes of carrying, pouring and the like; and (4) stripping, namely taking out the mold from the compacted sand mold by using different mechanisms.
The molding machine generally comprises a top sand shooting mold frame, a middle mold frame and a bottom sand shooting mold frame, wherein when the upper sand shooting mold and the lower sand shooting mold are carried out, the top mold frame is downward, the bottom mold frame is upward and is combined with the middle mold frame to form a molding cavity, and then the top mold frame and the bottom mold frame are simultaneously subjected to sand shooting molding. The inside surface of the existing top sand shooting mold frame, middle mold frame and bottom sand shooting mold frame is a vertical surface, the outside surface of the cast sand mold is also a vertical surface, after sand mold casting is completed, when pouring is carried out, the aluminum alloy pouring jacket is difficult to completely fit the sand mold, and during pouring molten iron, sand mold expansion easily occurs to the sand mold, so that the problem of molten iron leakage affects the quality of the cast product.
Disclosure of Invention
Therefore, a molding machine for top-injection and a using method thereof are needed to solve the problem that the pouring quality of molten iron is affected because a sand mold and a pouring jacket manufactured by the existing molding machine cannot be completely attached.
In order to achieve the aim, the invention provides a molding machine for up-down top shooting, which comprises a frame, a top shooting assembly, a bottom shooting assembly and a middle frame assembly;
the frame is provided with a middle frame sliding table and a sand shooting fixing space, the middle frame sliding table is positioned at the side edge of the sand shooting fixing space, at least two supporting guide columns are arranged in the sand shooting fixing space, the top sand shooting assembly is positioned at the tops of the supporting guide columns, the top sand shooting assembly comprises a top mold frame,
the bottom sand shooting assembly comprises a bottom stripping mold frame, a bottom sand inlet bin, a bottom sand shooting channel and a bottom sand blasting seat which are sequentially connected, the bottom sand blasting seat is positioned below the top sand shooting assembly, the bottom stripping mold frame is positioned between the bottom sand blasting seat and the top mold frame, the side edge of the bottom stripping mold frame is in sliding connection with the supporting guide pillar,
the middle frame assembly comprises a middle frame driving device, a middle mold frame and a connecting module, the middle frame driving device drives the middle mold frame to move towards the sand shooting fixing space from the middle frame sliding table through the connecting module, and the connecting module is set in a way that when the middle mold frame moves downwards, the middle frame driving device is separated from the middle mold frame;
the bottom end is separated from the inner side surfaces of the die frame, the middle die frame and the top die frame and is obliquely arranged.
Furthermore, the inner side surfaces of the bottom end separation die frame, the middle die frame and the top end die frame form an included angle alpha with the vertical surface, and the included angle alpha is within the range of 5 degrees and less than or equal to alpha and less than or equal to 10 degrees. The lateral surface that the slope of framed medial surface set up can make the fashioned sand mould has certain gradient, and when carrying out the pouring jacket, the aluminum alloy pouring jacket from top to bottom overlaps on the sand mould, and the pouring jacket can closely laminate the post sand mould, plays certain fixed action to the sand mould, and the seamless cooperation of pouring jacket and sand mould can not produce the sand mould and rise the case during casting pouring molten iron, leaks the molten iron, has improved the off-the-shelf output of foundry production.
Furthermore, a stripping die frame driving device is fixed on the side face of the top sand shooting assembly, an output shaft of the stripping die frame driving device is arranged downwards, and the stripping die frame driving device is connected with a bottom stripping die frame. The separation die frame driving device is vertically arranged downwards, the bottom separation die frame position can be conveniently adjusted, and meanwhile, the bottom separation die frame moves upwards when being separated from the frame, so that the frame separation action is smoother.
Further, the die frame separating driving devices are air cylinders, the number of the die frame separating driving devices is two, the two die frame separating driving devices are arranged diagonally, a sliding sleeve is arranged on the side edge of the bottom end separating the die frame, and the sliding sleeve is sleeved on the supporting guide pillar in a sliding mode. The driving air cylinder arranged diagonally enables the bottom end to be separated from the die frame and slide up and down more stably.
Furthermore, the bottom sand shooting assembly further comprises a forming lifting movable plate and a lifting cylinder, the forming lifting movable plate and the lifting cylinder are located on the side edge of the bottom sand blasting seat, and the lifting cylinder is fixed with the bottom surface of the forming lifting movable plate. During mold assembly, the demolding lifting movable plate and the lifting cylinder descend to make necessary space for the bottom end to be separated from the mold frame, after the sand mold is formed, the lifting cylinder drives the demolding lifting movable plate to ascend, the sand mold is conveniently pushed, pulled and conveyed out from the side face of the bottom sand shooting assembly, and the demolding lifting movable plate plays a certain supporting role on the sand mold in the conveying process.
Furthermore, the connection module includes limiting plate and push-and-pull rod, the limiting plate is fixed on the side that middle framed is close to center drive arrangement, be equipped with the spacing through-hole that runs through from top to bottom on the limiting plate, the vertical setting of push-and-pull rod, the top of push-and-pull rod is fixed with center drive arrangement's output shaft, the push-and-pull rod freely passes in the middle framed of the spacing through-hole can follow the top and penetrate the sand subassembly and descend together and penetrate the sand subassembly with the bottom and carry out the compound die, and the bottom advances sand silo, the bottom is penetrated sand passageway, the keeping of bottom sandblast seat and is motionless, keeps penetrating the gas tightness of sand passageway connection.
Further, the center subassembly still includes first guide rail and second guide rail, first guide rail is fixed on the center sliding stand, the lateral surface at the top framed is fixed to the second guide rail, be equipped with first pulley and second pulley on the middle framed, first pulley and second pulley respectively with first guide rail and second guide rail looks adaptation. The middle mold frame moves left and right along the first guide rail and the second guide rail.
Furthermore, the number of the first guide rails and the second guide rails is two, vertical plates are fixed on the side edges of the middle mold frame, the first pulleys are fixed on the outer side face of the middle mold frame, and the second pulleys are fixed on the inner side face of the vertical plates.
The first pulley and the second pulley are arranged on different side faces at different horizontal heights, and when the middle die frame enters the second guide rail through the first guide rail, dislocation of the middle die frame can be effectively avoided, and the middle die frame can be guaranteed to run stably in the continuous left-right movement process.
Further, the top is penetrated the sand subassembly and is still included top sand feeding bin and top and penetrate the sand passageway from top to bottom, sand feeding bin and top are penetrated the sand passageway and are connected in the top, the bottom that the sand passageway was penetrated in the top is cup jointed to the top framed, be equipped with on the side of penetrating the sand passageway on the top, be equipped with top frame drive arrangement on the top, top frame drive arrangement is connected with the top framed, be equipped with the boss on the lateral surface of top framed, the second guide rail is fixed on the boss. The setting of boss makes things convenient for the fixed of second guide rail on the top framed, and when middle framed has first guide rail to enter into the second guide rail, the boss still played certain supporting role simultaneously.
The use method of the molding machine for top-down ejection comprises the following steps:
(1) sliding the bottom end stripping mold frame downwards for a proper distance, and then pushing the middle mold frame to a position between the top end mold frame and the bottom end stripping mold frame through a middle frame driving device;
(2) the top end mold frame drives the middle mold frame to press downwards, the middle frame driving device is separated from the middle mold frame, and the top end mold frame continues to press downwards until the top end mold frame and the middle mold frame are assembled;
(3) after the die assembly is completed, the top frame sand shooting component and the bottom end sand shooting component start sand shooting and compact;
(4) after compaction, the top mold frame rises and drives the middle mold frame to rise;
(5) the middle frame driving device drives the middle mold frame to slide out, the top mold frame is pressed down again, the top mold frame and the bottom separation mold frame are combined again, then the top mold frame and the bottom separation mold frame ascend simultaneously, the sand mold is separated from the mold frame, and the sand mold is completed.
The technical scheme has the following beneficial effects:
according to the invention, the bottom sand shooting assembly is provided with the bottom separation mold frame separated from the bottom sand blasting seat, when the top sand shooting assembly, the bottom sand shooting assembly and the middle frame assembly are assembled, the top sand shooting assembly and the bottom separation mold frame of the middle mold frame are sequentially superposed, and due to the separated arrangement of the bottom separation mold frame and the bottom sand blasting seat, the proper height of the bottom separation mold frame can be randomly adjusted, so that the height of the formed sand mold is adjusted, and because the inner side surface of the mold frame has a certain inclination, the formed sand mold has a certain inclination, the subsequent pouring of the sand mold is convenient, and the smooth pouring of molten iron is ensured.
Drawings
Fig. 1 is a block diagram of a molding machine according to an embodiment.
Fig. 2 is a block diagram of a rack in accordance with an embodiment.
FIG. 3 is a cross-sectional view of a top and bottom sand shooting assembly according to an embodiment.
FIG. 4 is a block diagram of a bottom-end sandshooting assembly according to an embodiment.
FIG. 5 is a block diagram of a center frame assembly and a top shooting assembly according to an embodiment.
FIG. 6 is an exploded view of the center frame assembly according to an embodiment.
Fig. 7 is a structural diagram of a mold clamping state of the molding machine according to the embodiment.
FIG. 8 is a cross-sectional view of the top mold frame, middle mold frame, and bottom mold frame shown removed from the mold frame during closing of the mold according to the embodiments.
Description of reference numerals:
1. a frame; 11. a middle frame sliding table; 12. sand shooting and fixing the space;
2. a top-end sand shooting assembly; 21. a top end mold frame; 22. the top end is fed into a sand silo; 23. a top sand shooting channel; 24. a top frame driving device; 25. a boss;
3. a bottom-end sand shooting assembly; 31. the bottom end is separated from the mould frame; 32. the bottom end of the sand bin is filled with sand; 33. a bottom sand shooting channel; 34. a bottom sandblasting base; 35. a stripping die frame driving device; 36. a sliding sleeve; 37. a demoulding lifting movable plate; 38. a lifting cylinder;
4. a middle frame component; 41. a middle frame driving device; 42. a first guide rail; 43. a second guide rail; 44. a connection module; 441. a limiting plate; 442. a push-pull rod; 443. a limiting through hole; 45. a middle mold frame; 451. a first pulley; 452. a vertical plate; 453. a second pulley;
5. and supporting the guide post.
Detailed Description
To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.
Referring to fig. 1-8, the present embodiment provides a molding machine with top and bottom shooting, which includes a frame 1, a top shooting assembly 2, a bottom shooting assembly 3, and a middle frame assembly 4; frame 1 is last to be provided with center sliding table 11 and penetrate sand fixed space 12, and center sliding table 11 is located the side of penetrating sand fixed space 12, is equipped with two piece at least support guide pillars 5 in penetrating sand fixed space 12, and top penetrate sand subassembly 2 and be located the top of support guide pillar 5, and the quantity of support guide pillar 5 is four in this embodiment.
The top sand shooting assembly 2 comprises a top sand inlet bin 22, a top sand shooting channel 23 and a top mold frame 21 from top to bottom, wherein the top sand inlet bin 22 is connected with the top sand shooting channel 23, the top mold frame 21 is sleeved at the bottom end of the top sand shooting channel 23, a top frame driving device 24 is arranged on the side surface of the top sand shooting channel, and the top frame driving device 24 is connected with the top mold frame 21;
the bottom sand shooting assembly 3 comprises a bottom separation mold frame 31, a bottom sand inlet bin 32, a bottom sand shooting channel 33 and a bottom sand blasting seat 34 which are sequentially connected, the bottom sand blasting seat 34 is positioned below the top sand shooting assembly 2, the bottom separation mold frame 31 is positioned between the bottom sand blasting seat 34 and the top mold frame 21, and the side edge of the bottom separation mold frame 31 is slidably connected with the support guide pillar 5;
the middle frame assembly 4 includes a middle frame driving device 41, a middle frame 45 and a connection module 44, the middle frame driving device 41 drives the middle frame 45 to move from the middle frame sliding table 11 to the sand shooting fixing space 12 through the connection module 44, and the connection module 44 is configured such that the middle frame driving device 41 is separated from the middle frame 45 when the middle frame 45 moves downward.
The bottom end is obliquely arranged away from the inner side surfaces of the mold frame 31, the middle mold frame 45 and the top end mold frame 21.
In this embodiment, the inner side surfaces of the bottom end separation mold frame 31, the middle mold frame 45 and the top end mold frame 21 and the vertical surface form an included angle α, and the included angle α is in the range of 5 degrees or more and 10 degrees or less. The lateral surface that the slope of framed medial surface set up can make the fashioned sand mould has certain gradient, and when carrying out the pouring jacket, the aluminum alloy pouring jacket from top to bottom overlaps on the sand mould, and the pouring jacket can closely laminate the post sand mould, plays certain fixed action to the sand mould, and the seamless cooperation of pouring jacket and sand mould can not produce the sand mould and rise the case during casting pouring molten iron, leaks the molten iron, has improved the off-the-shelf output of foundry production.
The specific included angle α may be 5 °, 8 °, 10 °.
The angle alpha is 5 deg. in this embodiment.
A stripping mold frame driving device 35 is fixed on the side surface of the top sand shooting assembly 2, the output shaft of the stripping mold frame driving device 35 is arranged downwards, and the stripping mold frame driving device 35 is connected with the bottom stripping mold frame 31. The separation mold frame driving device 35 is vertically arranged downwards, so that the bottom separation mold frame 31 is conveniently adjusted, and meanwhile, the bottom separation mold frame 31 moves upwards when being separated from the mold frame, so that the frame separation action is smoother.
The stripping die frame driving device 35 is an air cylinder, the number of the stripping die frame driving devices 35 is two, the two stripping die frame driving devices 35 are arranged diagonally, a sliding sleeve 36 is arranged on the side edge of the bottom stripping die frame 31, and the sliding sleeve 36 is sleeved on the support guide pillar 5 in a sliding manner. The driving air cylinders arranged diagonally enable the bottom end to be separated from the die frame 31, and the up-and-down sliding is more stable.
The bottom sand shooting assembly 3 further comprises a forming lifting movable plate 37 and a lifting cylinder 38, the forming lifting movable plate 37 and the lifting cylinder 38 are located on the side of the bottom sand blasting seat 34, and the lifting cylinder 38 is fixed to the bottom surface of the forming lifting movable plate 37. During mold closing, the demolding lifting movable plate 37 and the lifting cylinder 38 descend to leave a necessary space for the bottom end to be separated from the mold frame 31, after the sand mold is formed, the lifting cylinder 38 drives the demolding lifting movable plate 37 to ascend, the sand mold is convenient to push, pull, transport and transport out from the side face of the bottom sand shooting assembly 3, and the demolding lifting movable plate 37 plays a certain supporting role on the sand mold in the transporting process.
The connecting module 44 includes a limiting plate 441 and a push-pull rod 442, the limiting plate 441 is fixed on a side surface of the middle mold frame 45 close to the middle frame driving device 41, the limiting plate 441 is provided with a limiting through hole 443 penetrating up and down, the push-pull rod 442 is vertically arranged, a top end of the push-pull rod 442 is fixed with an output shaft of the middle frame driving device 41, and the push-pull rod 442 freely penetrates through the limiting through hole 443. The middle mold frame 45 can descend along with the top sand shooting assembly 2 to be matched with the bottom sand shooting assembly 3, the bottom sand inlet bin 32, the bottom sand shooting channel 33 and the bottom sand blasting seat 34 are kept still, and the air tightness of the connection of the sand shooting channels is kept.
Specifically, the middle frame driving device 41 is an air cylinder, the limiting plate 441 and the push-pull rod 442 are fixed by screw fasteners, a fixing plate is fixed on an output shaft of the middle frame driving device 41, a limiting pulley is arranged on the fixing plate, the limiting pulley is matched with the first guide rail 42, a fixing block is fixed on the side surface of the fixing plate facing the middle mold frame 45, and the push-pull rod 442 is fixed with the fixing block.
The middle frame assembly 4 further comprises a first guide rail 42 and a second guide rail 43, the first guide rail 42 is fixed on the middle frame sliding table 11, the second guide rail 43 is fixed on the outer side surface of the top end mold frame 21, a first pulley 451 and a second pulley 453 are arranged on the middle mold frame 45, and the first pulley 451 and the second pulley 453 are respectively matched with the first guide rail 42 and the second guide rail 43. The middle mold frame 45 moves left and right along the first guide rail 42 and the second guide rail 43.
The number of the first guide rail 42 and the second guide rail 43 is two, the upright plate 452 is fixed on the side edge of the middle mold frame 45, the first pulley 451 is fixed on the outer side surface of the middle mold frame 45, and the second pulley 453 is fixed on the inner side surface of the upright plate 452. The first pulley 451 and the second pulley 453 are arranged on different side surfaces at different levels, so that when the middle mold frame 45 enters the second guide rail 43 through the first guide rail 42, dislocation of the middle mold frame 45 can be effectively avoided, and stable operation of the equipment can be ensured in the continuous left-right movement process of the middle mold frame 45.
The outer side surface of the top end mold frame 21 is provided with a boss 25, and a second guide rail 43 is fixed on the boss 25. The setting of boss 25 makes things convenient for the fixed of second guide rail 43 on top end framed 21, and when middle framed 45 had first guide rail 42 to enter into second guide rail 43 simultaneously, boss 25 still played certain supporting role, and in this embodiment, boss 25 sets up along the periphery of top end framed 21, and boss 25 can also play the effect of strengthening top end framed 21 intensity along the peripheral setting of top end framed 21, and second guide rail 43 advances to fix through screw fastening with boss 25.
The use method of the molding machine for top-down ejection comprises the following steps:
(1) sliding the bottom-end stripping mold frame 31 downwards for a proper distance, and then pushing the middle mold frame 45 to the position between the top-end mold frame 21 and the bottom-end stripping mold frame 31 by the middle frame driving device 41;
(2) the top end mold frame 21 drives the middle mold frame 45 to press downwards, the middle frame driving device 41 is separated from the middle mold frame 45, and after the middle mold frame 45 is contacted with the bottom end separation mold frame 31, the top end mold frame 21 continues to press downwards until the top end mold frame 21 and the middle mold frame 45 are closed;
(3) after the die assembly is completed, the top frame sand shooting component and the bottom end sand shooting component 3 start sand shooting and are compacted;
(4) after compaction, the top mold frame 21 rises and drives the middle mold frame 45 to rise;
(5) the middle frame driving device 41 drives the middle mold frame 45 to slide out, the top mold frame 21 is pressed down again, the top mold frame 21 and the bottom separation mold frame 31 are combined again, then the top mold frame 21 and the bottom separation mold frame 31 ascend simultaneously, the sand mold is separated from the frame, and the sand mold is finished.
According to the invention, the bottom sand shooting assembly 3 is provided with the bottom separation mold frame 31 separated from the bottom sand blasting seat 34, when the top sand shooting assembly 2, the bottom sand shooting assembly 3 and the middle frame assembly 4 are assembled, the bottom separation mold frame 31 of the top sand shooting assembly 2 and the middle mold frame 45 are sequentially overlapped, and the bottom separation mold frame 31 can be randomly adjusted to be at a proper height due to the separation arrangement of the bottom separation mold frame 31 and the bottom sand blasting seat 34, so that the height of the formed sand mold is adjusted, and the inner side surface of the mold frame has a certain inclination, so that the formed sand mold has a certain inclination, the subsequent pouring of the sand mold is convenient, and the smooth pouring of molten iron is ensured.
It is noted that, herein, relational terms such as first and second, and the like may be 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. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrases "comprising … …" or "comprising … …" does not exclude the presence of additional elements in a process, method, article, or terminal that comprises the element. Further, herein, "greater than," "less than," "more than," and the like are understood to exclude the present numbers; the terms "above", "below", "within" and the like are to be understood as including the number.
Although the embodiments have been described, once the basic inventive concept is obtained, other variations and modifications of these embodiments can be made by those skilled in the art, so that the above embodiments are only examples of the present invention, and not intended to limit the scope of the present invention, and all equivalent structures or equivalent processes using the contents of the present specification and drawings, or any other related technical fields, which are directly or indirectly applied thereto, are included in the scope of the present invention.
Claims (10)
1. A molding machine with upper and lower top shooting is characterized by comprising a frame, a top shooting assembly, a bottom shooting assembly and a middle frame assembly; the sand shooting device comprises a rack, a sand shooting device and a sand shooting device, wherein a middle frame sliding table and a sand shooting fixing space are arranged on the rack, the middle frame sliding table is located on the side edge of the sand shooting fixing space, at least two supporting guide pillars are arranged in the sand shooting fixing space, a top sand shooting assembly is located at the tops of the supporting guide pillars, and the top sand shooting assembly comprises a top mold frame;
the bottom sand shooting assembly comprises a bottom separation die frame, a bottom sand inlet bin, a bottom sand shooting channel and a bottom sand blasting seat, the bottom sand blasting seat is positioned below the top sand shooting assembly, the bottom separation die frame is positioned between the bottom sand blasting seat and the top die frame, the side edge of the bottom separation die frame is in sliding connection with the support guide pillar, the middle frame assembly comprises a middle frame driving device, a middle die frame and a connecting module, the middle frame driving device drives the middle die frame to move towards a sand shooting fixed space from a middle frame sliding table through the connecting module, and the connecting module is set to separate the middle frame driving device from the middle die frame when the middle die frame moves downwards;
the bottom end is separated from the inner side surfaces of the die frame, the middle die frame and the top die frame and is obliquely arranged.
2. The top-down top-shooting molding machine as claimed in claim 1, wherein the inner side surfaces of the bottom end stripper die frame, the middle die frame and the top end die frame have an angle α with a vertical plane, said angle α ranging from 5 ° to 10 °.
3. The top-down top-shooting molding machine as claimed in claim 1, wherein a knock-out frame drive unit is fixed to a side of said top-shooting assembly, an output shaft of said knock-out frame drive unit being disposed downward, said knock-out frame drive unit being connected to a bottom-end knock-out frame.
4. The upper and lower top-injection molding machine as claimed in claim 3, wherein said driving means for the mold frame are two cylinders, two driving means for the mold frame are diagonally disposed, and a sliding sleeve is disposed on a side of the bottom end of the mold frame, said sliding sleeve being slidably fitted over the supporting guide post.
5. The top-up and bottom-up shooting molding machine as claimed in claim 1, wherein the bottom-shooting assembly further comprises a movable lift plate and a lift cylinder, the movable lift plate and the lift cylinder are located at the side of the bottom-shooting seat, and the lift cylinder is fixed to the bottom surface of the movable lift plate.
6. The molding machine of upper and lower top-injection as claimed in claim 1, wherein the connecting module comprises a limiting plate fixed on the side of the middle mold frame near the middle frame driving device, and a push-pull rod, the limiting plate is provided with a limiting through hole penetrating up and down, the push-pull rod is vertically arranged, the top end of the push-pull rod is fixed with the output shaft of the middle frame driving device, and the push-pull rod freely penetrates through the limiting through hole.
7. The top-down top-shooting molding machine as claimed in claim 6, wherein said middle frame assembly further comprises a first rail fixed to the middle frame sliding table and a second rail fixed to the outer side surface of the top mold frame, said middle mold frame being provided with a first pulley and a second pulley, said first pulley and said second pulley being respectively fitted to the first rail and said second rail.
8. The upper and lower top-injection molding machine as claimed in claim 7, wherein the number of the first guide rail and the second guide rail is two, the side of the middle mold frame is fixed with the vertical plate, the first pulley is fixed on the outer side of the middle mold frame, and the second pulley is fixed on the inner side of the vertical plate.
9. The molding machine of upper and lower top shooters according to claim 8, wherein the top shooting assembly further comprises, from top to bottom, a top sand inlet bin and a top sand shooting channel, the top sand inlet bin and the top sand shooting channel are connected, the top mold frame is sleeved at the bottom end of the top sand shooting channel, a top frame driving device is arranged on the side surface of the top sand shooting channel, the top frame driving device is connected with the top mold frame, a boss is arranged on the outer side surface of the top mold frame, and the second guide rail is fixed on the boss.
10. The method of using a top-and-bottom injection molding machine as claimed in any one of claims 1 to 9, comprising the steps of:
(1) sliding the bottom end stripping mold frame downwards for a proper distance, and then pushing the middle mold frame to a position between the top end mold frame and the bottom end stripping mold frame through a middle frame driving device;
(2) the top end mold frame drives the middle mold frame to press downwards, the middle frame driving device is separated from the middle mold frame, and the top end mold frame continues to press downwards until the top end mold frame and the middle mold frame are assembled;
(3) after the die assembly is completed, the top frame sand shooting component and the bottom end sand shooting component start sand shooting and compact;
(4) after compaction, the top mold frame rises and drives the middle mold frame to rise;
(5) the middle frame driving device drives the middle mold frame to slide out, the top mold frame is pressed down again, the top mold frame and the bottom separation mold frame are combined again, then the top mold frame and the bottom separation mold frame ascend simultaneously, the sand mold is separated from the mold frame, and the sand mold is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123350.3A CN113828737A (en) | 2021-09-24 | 2021-09-24 | Molding machine with upper and lower ejection functions and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111123350.3A CN113828737A (en) | 2021-09-24 | 2021-09-24 | Molding machine with upper and lower ejection functions and using method thereof |
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