CN115213359B - Cold core box core shooting machine for metal castings and processing method - Google Patents
Cold core box core shooting machine for metal castings and processing method Download PDFInfo
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- CN115213359B CN115213359B CN202210877921.0A CN202210877921A CN115213359B CN 115213359 B CN115213359 B CN 115213359B CN 202210877921 A CN202210877921 A CN 202210877921A CN 115213359 B CN115213359 B CN 115213359B
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- 238000005058 metal casting Methods 0.000 title claims abstract description 18
- 238000003672 processing method Methods 0.000 title description 6
- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 239000004576 sand Substances 0.000 claims abstract description 63
- 238000012546 transfer Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 10
- 244000035744 Hura crepitans Species 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 7
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 238000007664 blowing Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 150000001412 amines Chemical class 0.000 description 5
- 238000004891 communication Methods 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 238000000465 moulding Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000010926 purge Methods 0.000 description 1
- 238000011155 quantitative monitoring Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000017105 transposition Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000009423 ventilation 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
- B22C19/00—Components or accessories for moulding machines
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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
- B22C17/00—Moulding machines characterised by the mechanism for separating the pattern from the mould or for turning over the flask or the pattern plate
- B22C17/02—Moulding machines with pin lifting arrangement
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Devices For Molds (AREA)
Abstract
The invention relates to the technical field of core shooters and provides a cold core box core shooter for metal castings, which comprises a machine body, a sand adding mechanism, a sand shooting mechanism, a core box installation mechanism, a piece taking mechanism, a plurality of connecting rods, a plurality of second connecting rods and a plurality of holes, wherein the sand adding mechanism, the sand shooting mechanism and the core box installation mechanism are arranged on the machine body, the mounting seat is movably arranged on the machine body along a z axis, the lower core box is arranged on the mounting seat, the piece taking mechanism comprises an adjusting piece which is movably arranged on the machine body along an x axis, the adjusting piece is provided with a first groove, the rotating piece is rotatably arranged in the first groove along a y axis, the rotating piece is provided with a rotating part and a bearing part which are connected, the hole I is further provided with a moving rod which is movably arranged in the hole I, one end of the first connecting rod is hinged to the moving rod, the second connecting rod is hinged to the other end of the two first connecting rods, one position between the two second connecting rods is hinged to the two second connecting rods, the connecting rods are respectively hinged to the two second connecting rods, and the plurality of connecting rods are respectively arranged on the two supporting plates. Through the technical scheme, the problem of low production efficiency of the cold core box core shooter in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of core shooters, in particular to a cold core box core shooter for metal castings and a processing method.
Background
In casting production, the requirement on the sand core is very high, the sand core needs to have enough strength, accurate size and smooth surface, the conventional cold-box core shooter generally comprises a sand adding mechanism, a sand shooting mechanism, a core box mounting mechanism and a hydraulic, electric and air making part, the sand mixer can be used for providing core sand for the cold-box core shooter, and the triethylamine gas generator can be used for providing hardening gas for the cold-box core shooter.
The working principle of the existing cold core box core shooter is as follows: when the integral sand shooting component is at the sand feeding position, a sand feeding valve is opened, core sand flows into a shooting barrel through a flashboard door (quantitative monitoring is carried out), after sand feeding is finished, the sand shooting component moves to the upper part of a core box, a sand shooting frame and the shooting barrel are pushed by an oil cylinder to move downwards to be contacted with the core box, a shooting head is pushed by an upper pressure oil cylinder to be contacted with the upper plane of the shooting barrel and tightly pressed, a shooting head valve is opened for ventilation, a shooting head piston is opened, compressed air in a gas storage tank shoots the core sand into the core box through a double shooting head, the double shooting barrel, the sand shooting frame (two areas separated by a partition plate) and a core box shooting nozzle, and then residual air is discharged, so that core shooting is completed. After sand shooting is completed, the shooting head is lifted, under the pushing of the transposition oil cylinder, the sand shooting frame and the shooting cylinder (with the core box sand shooting plate) are moved to a sand adding position for adding sand again, the amine blowing frame is simultaneously moved to the upper part of the core box, the upper pressing oil cylinder pushes the shooting head downwards again, the amine blowing frame contacts with the upper planes of the two pressing mechanisms on the amine blowing frame and presses the two pressing mechanisms, and amine gas is blown into the core box through the amine blowing frame, so that the sand core is solidified and formed through chemical reaction.
However, the existing cold core box core shooter has the problems that after the sand core is formed, a worker manually takes down the sand core (formed product), the sand core is easy to damage in the process, the consistency of the product is affected during batch production, and the sand core box needs to be manually purged after the sand core is taken down for sand shooting next time, so that time and labor are wasted, the purging is not guaranteed completely, the production efficiency is reduced, and the existing cold core box core shooter needs to be improved to solve the problems.
Disclosure of Invention
The invention provides a cold core box core shooter for metal castings and a processing method thereof, which solve the problem of low production efficiency of the cold core box core shooter in the prior art.
The technical scheme of the invention is as follows:
the cold core box core shooter for the metal castings comprises a machine body, a sand adding mechanism, a sand shooting mechanism and a core box mounting mechanism which are sequentially arranged on the machine body from top to bottom, and also comprises a piece taking mechanism arranged on the machine body,
the core box mounting mechanism comprises a core box mounting mechanism,
the mounting seat is movably arranged on the machine body along the z-axis, the lower core box is arranged on the mounting seat,
the pick-up mechanism comprises a pick-up mechanism body,
the adjusting piece is movably arranged on the machine body along the x axis and positioned at one side of the mounting seat, the adjusting piece is abutted or not abutted against the side part of the mounting seat after moving, the adjusting piece is provided with a first groove, the first groove is provided with a first through hole,
the rotating part is provided with a rotating part and a bearing part which are connected, the rotating part is rotationally arranged in the first groove along the y axis, after the rotating part rotates, the first groove is communicated with the first through hole or is not communicated with the first through hole, the rotating part is also provided with a first hole which penetrates through the rotating part and extends to the bearing part, the part extending to the bearing part is communicated with the outside of the rotating part,
a moving rod which is arranged in the first hole along the z axis in a moving way,
one end of the first connecting rod is hinged on the movable rod, two first connecting rods are symmetrically arranged along the x axis,
two second connecting rods are symmetrically arranged along the x-axis and are respectively hinged with the other ends of the two first connecting rods, one position between the two second connecting rods is mutually hinged with the bearing part,
the third connecting rods are symmetrically arranged along the x axis and are respectively arranged on the two second connecting rods,
a plurality of connecting rods are respectively hinged on the two third connecting rods,
the support plates are symmetrically arranged along the x axis, and the connecting rods are respectively arranged on the two support plates.
As a further technical proposal, the picking mechanism also comprises,
the mounting plate is arranged on the machine body,
the first linear driving piece is arranged on the mounting plate and is in driving connection with the adjusting piece,
the first rotary driving piece is arranged on the adjusting piece and is in driving connection with the rotary piece.
As a further technical proposal, the picking mechanism also comprises,
a first tension spring, one end of which acts on the bottom wall of the first hole and the other end of which acts on the moving rod, for providing a force for the moving rod to approach the bottom wall of the first hole,
the limiting plate is arranged on the bearing part and positioned at the bottom wall position of the first hole,
and the electric clamping jaw is arranged on the mounting plate and used for clamping the moving rod to move towards the first through hole.
As a further technical scheme, the bearing part is provided with a notch, the two supporting plates are arranged at the notch in a moving mode and opposite in moving direction, and the width of the notch is larger than that of the lower core box.
As a further technical scheme, the core box installation mechanism further comprises,
the workbench is movably arranged on the machine body along the z axis, the mounting seat is arranged on the workbench,
the ejector rod is arranged on the mounting seat in a moving way along the z-axis, and the ejector rod penetrates out or cancels penetrating out of the lower core box after moving.
As a further technical scheme, the sand adding mechanism comprises,
the sand box is arranged on the machine body and is positioned at the top of the machine body.
As a further technical scheme, the sand shooting mechanism comprises,
the sand shooting box is movably arranged on the machine body along the x axis,
the jet box is movably arranged on the machine body along the x-axis and is parallel to the moving direction of the sand shooting box,
and the second linear driving piece is arranged on the machine body and positioned at one side of the sand box and is used for pushing the sand shooting box or the air spraying box onto the upper core box.
As a further technical proposal, the picking mechanism also comprises,
a transfer table positioned at one side of the machine body,
the conveying roller way is positioned at one side of the transfer table, the conveying rollers at the head end of the conveying roller way are two spaced conveying rollers,
and the transfer plate rotates and is arranged on the transfer table in a lifting manner, and is used for transferring the sand core from the supporting plate to the conveying roller way.
As a further technical proposal, the through hole on the lower core box for the ejector rod to pass through is provided with a large-diameter section and a small-diameter section, the diameter of the small-diameter section is the same as the outer diameter of the ejector rod, the core box installation mechanism also comprises,
the rotary table is rotationally arranged at the end part of the ejector rod, one end surface of the rotary table is flush with the surface of the lower core box, the other end surface of the rotary table is provided with a plurality of poking sheets, the ejector rod is rotationally arranged on the mounting seat, the rotary table is provided with a hole II, a spring is arranged in the hole II,
an inner gear sleeve arranged on the rotary disc and positioned on the Kong Erna,
the spiral rod penetrates through the inner tooth sleeve and moves in the first hole in a rotating way, the end part of the spiral rod is connected with a baffle plate, the baffle plate is abutted against the spring,
the ratchet wheel is sleeved on the spiral rod and positioned in the inner tooth sleeve, and after pushing the spiral rod, the ratchet wheel is meshed with the inner tooth sleeve or is not meshed with the inner tooth sleeve.
As a further technical scheme, the metal casting processing method comprises the following steps of:
s1, completing sand core demolding by using a cold core box core shooter, wherein the sand core is jacked up by a jacking rod;
s2, starting a first linear driving piece, and pushing the adjusting piece to be propped against the side part of the lower core box;
s3, starting a first rotary driving piece, rotating the rotary piece to a horizontal position, communicating a first hole I with a first through hole, abutting a limiting plate on the inner wall of a first groove, and enabling the upper end face of a supporting plate to be flush with the end face of a top rod;
s4, starting an electric clamping jaw, clamping a moving rod, pulling the moving rod to a first through hole, and clamping a supporting plate to the ejector rod and attaching the supporting plate to the bottom surface of the sand core;
s5, the ejector rod descends, the sand core falls onto the supporting plate, and the adjusting piece moves along the y axis to send out the sand core.
The working principle and the beneficial effects of the invention are as follows:
in order to solve the problem of low production efficiency of the cold core box core shooter, the inventor changes the steps of manually taking out the sand cores and blowing the upper core box and the lower core box in the existing production process into mechanical automatic operation, shortens the whole production time, improves the production efficiency, avoids the condition that the sand cores are easily damaged by manual taking, saves manpower and material resources, and has more comprehensive and efficient blowing of the upper core box and the lower core box and improved consistency of sand core molding.
Drawings
The invention will be described in further detail with reference to the drawings and the detailed description.
FIG. 1 is a schematic view of an angular perspective structure of the present invention;
FIG. 2 is a schematic view of another perspective view of the present invention;
FIG. 3 is a schematic perspective view of the invention with the core box mounting mechanism removed;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is a schematic view showing the internal structure of the ejector pin according to the present invention;
FIG. 6 is an enlarged schematic view of the portion B of FIG. 5;
fig. 7 is a schematic structural diagram of another embodiment of the present invention.
In the figure: 1. the machine body, 2, the sand feeding mechanism, 201, the sand box, 3, the sand shooting mechanism, 301, the sand shooting box, 302, the air injection box, 303, the second linear driving piece, 4, the core box installation mechanism, 401, the installation seat, 402, the workbench, 403, the ejector rod, 404, the turntable, 4041, the second hole, 405, the spring, 406, the inner tooth sleeve, 407, the twist screw, 408, the baffle, 409, the ratchet, 5, the piece taking mechanism, 501, the adjusting piece, 5011, the first groove, 5012, the first through hole, 502, the rotating piece, 5021, the rotating part, 5022, the bearing part, 5023, the first hole, 5024, the notch, 503, the moving rod, 504, the first connecting rod, 505, the second connecting rod, 506, the connecting rod, 507, the supporting plate, 508, the installation plate, 509, the first linear driving piece, 510, the first rotating driving piece, 511, the first connecting rod, 512, the limiting plate, the tension spring, 513, the electric clamping jaw, 514, the table, 515, the conveying roller way, 516, the transferring plate, 517 and the third connecting rod.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
As shown in fig. 1-6, the embodiment provides a cold core box core shooter for metal castings, which comprises a machine body 1, a sand feeding mechanism 2, a sand shooting mechanism 3 and a core box mounting mechanism 4 which are sequentially arranged on the machine body 1 from top to bottom, and also comprises a piece taking mechanism 5 arranged on the machine body 1,
the core box mounting mechanism 4 includes,
the mounting seat 401 is movably arranged on the machine body 1 along the z-axis, the lower core box is arranged on the mounting seat 401,
the pick-up mechanism 5 comprises a pick-up device,
the adjusting piece 501 is movably arranged on the machine body 1 along the x axis and positioned on one side of the mounting seat 401, the adjusting piece 501 abuts or cancels abutting against the side part of the mounting seat 401 after moving, the adjusting piece 501 is provided with a first groove 5011, the first groove 5011 is provided with a first through hole 5012,
the rotating member 502 having a rotating portion 5021 and a bearing portion 5022 connected to each other, the rotating portion 5021 being rotatably disposed in the first recess 5011 along the y-axis, the first recess 5011 being in communication with the first through hole 5012 or being out of communication after the rotating member 502 is rotated, the rotating portion 5021 further having a hole one 5023, the hole one 5023 extending through the rotating portion 5021 to the bearing portion 5022, a portion extending to the bearing portion 5022 being in communication with an outside of the rotating member 502,
the moving rod 503 is movably disposed in the hole one 5023 along the z-axis,
a first link 504, one end of which is hinged to the moving bar 503, the first link 504 has two symmetrical parts along the x-axis,
the two second connecting rods 505 are symmetrically arranged along the x-axis and are respectively hinged at the other ends of the two first connecting rods 504, a position in the middle of the two second connecting rods 505 is mutually hinged and hinged on the bearing part 5022,
the third connecting rods 517 are symmetrically arranged along the x-axis and are respectively arranged on the two second connecting rods 505,
a plurality of connecting rods 506, respectively hinged on two third connecting rods 517,
the two supporting plates 507 are symmetrically arranged along the x-axis, and a plurality of connecting rods 506 are respectively arranged on the two supporting plates 507.
In this embodiment, in order to solve the problem of low production efficiency of the cold core box core shooter, the inventor changes the steps of manually taking out the sand core and blowing the upper core box and the lower core box in the existing production process into mechanical automatic operation, shortens the whole production time, improves the production efficiency, avoids the condition that the sand core is easily damaged by manual taking, saves manpower and material resources, and has more comprehensive and efficient blowing of the upper core box and the lower core box, and improves the consistency of sand core molding.
In detail, the inventor improves on the existing cold box core shooter, and adds a picking mechanism 5, and the sand adding mechanism 2, the sand shooting mechanism 3 and the core box mounting mechanism 4 are all of the existing structures and will not be described too much. The upper and lower dies, namely the upper core box and the lower core box, are not shown in the drawings. Defining the lifting direction of the lower core box as the z-axis direction, the left-right moving direction of the sand shooting box 301 of the sand shooting mechanism 3 as the x-axis direction, then the y-axis direction is the front-back moving direction, the specific structure of the piece taking mechanism 5 is that a first linear driving piece 509 is installed on a mounting plate 508, the first linear driving piece 509 can be a cylinder, the output end of the first linear driving piece 509 is connected to an adjusting piece 501, a push rod 403 can be additionally arranged around the cylinder, the push rod 403 is connected to the adjusting piece 501 to keep stable movement, the adjusting piece 501 is positioned at the side of the lower core box and faces a square plate of the lower core box, a groove, namely a first groove 5011, is formed on the end face of the adjusting piece 501 facing the lower core box, a rotatable rotating piece 502 is installed in the first groove 5021, the rotating piece 502 consists of a rotating part 5021 and a bearing part 5022, the rotating part 5021 can be a rotating shaft, the bearing part 5022 is rotatably arranged in the first groove 5011 and is similar to a U-shaped fork and is connected to the rotating part 5021, the notch 5024 is a part which is vacant between two fork heads, then a hole, namely a hole one 5023, is downwards formed in the cylindrical surface of the rotating part 5021, the hole one 5023 penetrates through the rotating part 5021 downwards and then extends into the bearing part 5022 and does not penetrate through the bearing part 5022, the thickness of the bearing part 5022 is smaller than that of the rotating part 5021, the part of the hole one 5023 extending into the bearing part 5022 is in the form of a groove and is communicated with the outside, a tension spring, namely a first tension spring 511, is arranged in the hole one 5023, the lower end of the tension spring is connected to the bottom wall of the hole one 5023, the upper end of the tension spring is connected to the moving rod 503, the moving rod 503 is provided with a round seat which is jointed with the side wall of the hole one 5023, the moving rod 503 can move up and down in the hole one 5023, the outside of the hole one 5023 is also provided with a limiting plate 512 on the bearing part 2, the upper end surface of the limiting plate 512 is flush with the bottom wall of the hole one 5023, and can be used for bearing the part of the first tension spring 511 extending out of the hole one 5023, two connecting rods which are symmetrically distributed along the X-axis, namely, first connecting rods 504 are hinged on the moving rod 503, the first connecting rods 504 are obliquely downward from the hinged end to the other end, the other ends of the two first connecting rods 504 are respectively hinged with a second connecting rod 505, the second connecting rods 505 are in an X shape, a position in the middle of the two second connecting rods 505 is hinged on the bearing part 5022, namely, the second connecting rods 505 rotate at the position, the other ends of the two second connecting rods 505 are respectively fixedly provided with a third connecting rod 517, the third connecting rods 517 are connected with the supporting plates 507 through a plurality of small connecting rods, the small connecting rods are hinged with the third connecting rods 517, the supporting plates 507 are fixed, the two supporting plates 507 can freely slide in the gap 5024 along the y-axis direction, a through hole which is formed in the first groove 1, the initial state of the rotating piece 502 is in a vertical state, and the first through hole 5012 is communicated with the first through hole 5013 after the initial state of the rotating piece 502 is in a horizontal state.
The sand core molding process of the core shooter is consistent with the prior art, namely, the lower core box is firstly moved upwards to be propped against the upper core box to enable the upper core box and the lower core box to be clamped, then the sand shooting box 301 of the sand shooting mechanism 3 is propped against the upper core box to finish sand shooting, then sand is separated from the sand box 201 which is moved to the sand adding mechanism 2 to supplement sand, the sand shooting box 301 is separated, meanwhile, the air shooting box 302 is propped against the upper core box to jet air to the sand core, the air shooting box 302 is externally connected with a triethylamine gas generator to provide hardening gas, after the air injection is finished, the air shooting box 302 is separated from reset, the upper core box and the lower core box are demolded, and the ejector rod 403 ejects the molded sand core out of the lower core box, so that the demolding of the sand core is finished. The piece taking mechanism 5 starts to operate, the first linear driving piece 509 is started to push the adjusting piece 501 towards the lower core box direction, the adjusting piece 501 stops after abutting against the side part of the lower core box, then the first rotary driving piece 510 is started to drive the rotary piece 502 to rotate to a horizontal position, the limiting plate 512 is propped against the upper wall surface of the first groove 5011 to limit, the upper end surface of the supporting plate 507 is flush with the upper end surface of the ejector rod 403, then the electric clamping jaw 513 is started to extend into the first through hole 5012 to clamp the moving rod 503 and pull the moving rod 503 outwards, the first connecting rod 504 swings downwards, the second connecting rod 505 contracts inwards, the two supporting plates 507 move towards each other subsequently, the clamping action is performed until the sand core is clamped on the cylindrical surface of the ejector rod 403, a corresponding groove can be formed in the supporting plate 507 according to the position of the ejector rod 403, the ejector rod 403 enters the groove, then the ejector rod 403 descends, the sand core falls on the supporting plate 507, in addition, a guide rail guided along the y axis can be arranged on the machine body 1, then the mounting plate 508 is mounted on the guide rail, so that the mounting plate 508 can freely slide along the y axis direction on the guide rail, the guide rail is not shown in the drawing, then the mounting plate 508 slides out along the guide rail, the electric clamping jaw 513 is released, the first rotation driving member 510 is synchronously started, the regulating member 501 resets, and the sand core is placed on the storage table. In addition, can install the jet head on bearing part 5022, be connected to triethylamine gas generator through the hose on, sweep upper and lower core box in getting the in-process of piece, do not need to use the manual hand of manpower to sweep upper and lower core box.
In conclusion, the workpiece taking mechanism 5 can be controlled by programming and automatically operated, manual assistance is not needed, workpiece taking and air injection are orderly and efficiently carried out, manual operation is replaced, efficiency is improved, and safety learning coefficient is higher.
Further, the picking mechanism 5 further comprises,
a mounting plate 508 movably provided on the body 1,
a first linear drive member 509, disposed on the mounting plate 508, in driving connection with the adjustment member 501,
the first rotation driving member 510 is disposed on the adjusting member 501 and is in driving connection with the rotation member 502.
Further, the picking mechanism 5 further comprises,
a first tension spring 511 having one end acting on the bottom wall of the hole one 5023 and the other end acting on the moving lever 503 for providing a force of the moving lever 503 to approach the bottom wall of the hole one 5023,
the limiting plate 512 is disposed on the bearing portion 5022 and located at the bottom wall of the first hole 5023,
a motorized clamping jaw 513 is disposed on the mounting plate 508 for clamping the moving rod 503 toward the first through hole 5012.
Further, the bearing portion 5022 has a notch 5024, and the two supporting plates 507 are both movably disposed at the notch 5024 and have opposite moving directions, and the width of the notch 5024 is greater than that of the lower core box.
Further, the cartridge mounting mechanism 4 further includes,
a table 402 movably provided on the body 1 along the z-axis, a mount 401 provided on the table 402,
the ejector rod 403 is movably arranged on the mounting seat 401 along the z axis, and the ejector rod 403 penetrates out or cancels penetrating out of the lower core box after moving.
Further, the sand adding mechanism 2 comprises,
the sand box 201 is arranged on the machine body 1 and is positioned at the top of the machine body 1.
Further, the sand shooting mechanism 3 comprises,
the sand shooting box 301 is movably arranged on the machine body 1 along the x axis,
the jet box 302 is movably arranged on the machine body 1 along the x axis and is parallel to the moving direction of the sand shooting box 301,
a second linear driving member 303, provided on the machine body 1 at one side of the sand box 201, for pushing the sand shooting box 301 or the air shooting box 302 onto the upper core box.
Further, the through hole on the lower core box for the ejector rod 403 to pass through is provided with a large-diameter section and a small-diameter section, the diameter of the small-diameter section is the same as the outer diameter of the ejector rod 403, the core box mounting mechanism 4 also comprises,
the rotary table 404 is rotatably arranged at the end part of the ejector rod 403, one end surface of the rotary table 404 is flush with the surface of the lower core box, the other end surface is provided with a plurality of poking sheets, the ejector rod 403 is also rotatably arranged on the mounting seat 401, the rotary table 404 is provided with a hole II 4041, a spring 405 is arranged in the hole II 4041,
an inner gear sleeve 406, disposed on the turntable 404, within the second hole 4041,
the spiral rod 407 passes through the inner gear sleeve 406 to rotate in the hole one 4041, the end part of the spiral rod 407 is connected with a baffle plate 408, the baffle plate 408 is abutted on the spring 405,
the ratchet 409 is sleeved on the spiral rod 407 and is positioned in the inner gear sleeve 406, and after pushing the spiral rod 407, the ratchet 409 is meshed with or disengaged from the inner gear sleeve 406.
As shown in fig. 5 and 6, in this embodiment, the inventor considers that in the process of shooting sand by the sand shooting box 301, core sand falls into the cavity of the upper and lower core boxes to easily cause accumulation, and the texture of the finally formed sand core is possibly uneven, so that the inventor adds a rotatable turntable 404 at the end of the ejector rod 403, one of two end faces of the turntable 404 can well coincide with the surface of the lower core box, the shape of the sand core is not affected, the other end face is provided with a plurality of shifting sheets, the rotation of the ejector rod 403 can drive the shifting sheets to rotate, the falling core sand is continuously dispersed around in the sand shooting process, the ejector rod 403 can be driven to rotate by a motor, and the two movements of lifting and rotating of the ejector rod 403 can be realized by installing the motor on a cylinder or a hydraulic cylinder.
Specifically, as shown in fig. 5, a groove is formed inward at the end of the ejector rod, a rotatable turntable 404 is installed at the opening of the groove, a hole is formed inward from the cylindrical surface of the turntable 404, that is, a hole 4041 is formed, an inner tooth sleeve 406 is fixedly connected to the central position of the hole 4041, the inner tooth sleeve 406 is sealed by a sealing cover, a hole for the spiral rod 407 to pass through is formed in the sealing cover, a ratchet 409 is sleeved on the spiral rod 407, a baffle 408 is fixed at the tail end of the spiral rod 407, the baffle 408 abuts against a spring 405, a hole is formed in the cylindrical surface of the ejector rod 403 and is communicated with the hole 4041, and the spiral rod 407 passes out of the ejector rod 403.
The rotating process of the turntable 404 is that the ejector rod 403 ascends and enters the small-diameter section from the large-diameter section of the through hole of the lower core box, in the process, the spiral rod 407 is propped against the inner wall of the through hole under the action of the elastic force of the spring 405, the spiral rod 407 gradually moves towards the hole one 4041 due to the reduction of the inner diameter, the ratchet 409 matched with the spiral rod 407 drives the inner toothed sleeve 406 to rotate, so that the turntable 404 is driven to turn over, the upper and lower positions of the two end surfaces are adjusted, when the upper and lower positions of the two end surfaces are required to be adjusted again, the ejector rod 403 descends and returns to the large-diameter section, the spiral rod 407 is ejected by the spring 408, in the process, the ratchet 409 does not drive the inner toothed sleeve 406 to rotate, and then the process is repeated, and the upper and lower positions of the two end surfaces are changed.
Further, a metal casting processing method is also provided, which comprises the following steps:
s1, completing sand core demolding by using a cold core box core shooter, wherein the sand core is jacked up by a jacking rod 403;
s2, starting the first linear driving member 509 to push the regulating member 501 to abut against the side part of the lower core box;
s3, starting the first rotary driving piece 510, rotating the rotary piece 502 to a horizontal position, communicating the first 5023 hole with the first through hole 5012, abutting the limiting plate 512 on the inner wall of the first groove 5011, and enabling the upper end face of the supporting plate 507 to be flush with the end face of the ejector rod 403;
s4, starting the electric clamping jaw 513, clamping the moving rod 503, pulling the moving rod to the first through hole 5012, and clamping the supporting plate 507 to the top rod 403 and attaching the supporting plate to the bottom surface of the sand core;
s5, the ejector rod 403 descends, the sand core falls onto the supporting plate 507, and the adjusting piece 501 moves along the y axis to send out the sand core.
Example 2
Further, the picking mechanism 5 further comprises,
a transfer table 514, located on one side of the fuselage,
a conveying roller way 515 is positioned at one side of the transfer table 514, the conveying rollers at the head end of the conveying roller way 515 are two spaced apart,
the transferring plate 516 is rotatably and liftably arranged on the transferring table 514, and the transferring plate 516 is used for transferring the sand cores from the supporting plate 507 to the conveying roller table 515.
As shown in fig. 7, the difference between this embodiment and embodiment 1 is that the guide rail is not added any more to enable the mounting plate 508 to move along the y axis, but a transfer table 514 is added, a transfer plate 516 is installed on the transfer table 514, the transfer plate 516 can be rotated by a motor, the motor is installed on a cylinder to realize lifting, after the supporting plate 507 lifts up the sand core, the transfer plate 516 rotates below the supporting plate 507, and since the lifting part of the transfer plate 516 is narrower than the supporting plate 507, the sand core can fall into the area between the two supporting plates 507, at this time, only the supporting plate 507 needs to be normally reset, the sand core can fall onto the transfer plate 516, then the transfer plate 516 is turned back and moves to the upper side of the conveying roller table 515, the transfer plate 516 descends, passes through the area between the two sections of conveying rollers, and the sand core can be lifted up on the conveying roller table 515 to complete the taking out and conveying of the sand core, and no manual conveying is required.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (8)
1. The cold core box core shooting machine for the metal castings comprises a machine body (1), a sand adding mechanism (2), a sand shooting mechanism (3) and a core box mounting mechanism (4) which are sequentially arranged on the machine body (1) from top to bottom, and is characterized by further comprising a piece taking mechanism (5) arranged on the machine body (1),
the core box mounting mechanism (4) comprises,
the mounting seat (401) is movably arranged on the machine body (1) along the z-axis, the lower core box is arranged on the mounting seat (401),
the picking mechanism (5) comprises a picking mechanism,
the adjusting piece (501) is movably arranged on the machine body (1) along the x axis and positioned on one side of the mounting seat (401), the adjusting piece (501) abuts against or cancels abutting against the side part of the mounting seat (401) after moving, the adjusting piece (501) is provided with a first groove (5011), the first groove (5011) is provided with a first through hole (5012),
the rotating part (502) is provided with a rotating part (5021) and a bearing part (5022) which are connected, the rotating part (5021) is rotationally arranged in the first groove (5011) along the y axis, after the rotating part (502) rotates, the first groove (5011) is communicated with the first through hole (5012) or is not communicated with the first through hole, the rotating part (5021) is also provided with a hole I (5023), the hole I (5023) penetrates through the rotating part (5021) to extend to the bearing part (5022), the part extending to the bearing part (5022) is communicated with the outside of the rotating part (502),
a moving rod (503) which is arranged in the first hole (5023) along the z-axis,
a first connecting rod (504) with one end hinged on the moving rod (503), the first connecting rod (504) has two symmetrical parts along the x axis,
two second connecting rods (505) are symmetrically arranged along the x-axis and are respectively hinged to the other ends of the two first connecting rods (504), one position in the middle of the two second connecting rods (505) is mutually hinged and hinged to the bearing part (5022),
the third connecting rods (517) are symmetrically arranged along the x axis and are respectively arranged on the two second connecting rods (505),
a plurality of connecting rods (506) respectively hinged on the two third connecting rods (517),
two support plates (507) are symmetrically arranged along the x-axis, and a plurality of connecting rods (506) are respectively arranged on the two support plates (507);
the core box mounting mechanism (4) also comprises,
a workbench (402) which is arranged on the machine body (1) along the z-axis in a moving way, the mounting seat (401) is arranged on the workbench (402),
the ejector rod (403) is movably arranged on the mounting seat (401) along the z-axis, and the ejector rod (403) penetrates out or cancels penetrating out of the lower core box after moving;
the through hole on the lower core box for the ejector rod (403) to pass through is provided with a large-diameter section and a small-diameter section, the diameter of the small-diameter section is the same as the outer diameter of the ejector rod (403),
the rotary table (404) is rotationally arranged at the end part of the ejector rod (403), one end surface of the rotary table (404) is flush with the surface of the lower core box, the other end surface of the rotary table is provided with a plurality of poking sheets, the ejector rod (403) is rotationally arranged on the mounting seat (401), the rotary table (404) is provided with a hole II (4041), a spring (405) is arranged in the hole II (4041),
an inner tooth sleeve (406) arranged in the second hole (4041),
a ratchet (409) positioned inside the inner gear sleeve (406) and coaxial with the inner gear sleeve (406),
the spiral rod (407) is matched with the ratchet wheel (409), after the spiral rod (407) is pushed, the ratchet wheel (409) is meshed with the inner gear sleeve (406) or is not meshed with the spiral rod (407), the end part of the spiral rod (407) is connected with a baffle plate (408), and the baffle plate (408) is abutted to the spring (405).
2. A cold box core shooter for metal castings according to claim 1, wherein said take-out mechanism (5) further comprises,
a mounting plate (508) arranged on the machine body (1),
a first linear drive (509) arranged on the mounting plate (508) in driving connection with the adjustment member (501),
and the first rotary driving piece (510) is arranged on the adjusting piece (501) and is in driving connection with the rotary piece (502).
3. A cold box core shooter for metal castings according to claim 2, wherein said take-out mechanism (5) further comprises,
a first tension spring (511) having one end acting on the bottom wall of the first hole (5023) and the other end acting on the moving lever (503) for providing a force of the moving lever (503) near the bottom wall of the first hole (5023),
a limiting plate (512) arranged on the bearing part (5022) and positioned at the bottom wall position of the first hole (5023),
and an electric clamping jaw (513) arranged on the mounting plate (508) and used for clamping the moving rod (503) to move towards the first through hole (5012).
4. A cold box core shooter for metal castings according to claim 3, wherein said bearing portion (5022) has a notch (5024), both of said pallets (507) are movably disposed at said notch (5024) and are moved in opposite directions, and the width of said notch (5024) is larger than the width of the lower core box.
5. A cold box core shooter for metal castings according to claim 4, wherein said sand feeding mechanism (2) includes,
the sand box (201) is arranged on the machine body (1) and is positioned at the top of the machine body (1).
6. A cold box core shooter for metal castings according to claim 5, wherein said sand shooting mechanism (3) comprises,
a sand shooting box (301) which is arranged on the machine body (1) along the x axis in a moving way,
a jet box (302) which is arranged on the machine body (1) along the x-axis in a moving direction parallel to the moving direction of the sand jet box (301),
and a second linear driving piece (303) arranged on the machine body (1) and positioned on one side of the sand box (201) and used for pushing the sand shooting box (301) or the air shooting box (302) onto the upper core box.
7. A cold box core shooter for metal castings according to claim 6, wherein said take-out mechanism (5) further comprises,
a transfer table (514) positioned on one side of the fuselage,
a conveying roller way (515) is positioned at one side of the transfer table (514), two conveying rollers positioned at the head end of the conveying roller way (515) are arranged at intervals,
and the transfer plate (516) is arranged on the transfer table (514) in a rotating and lifting manner, and the transfer plate (516) is used for transferring sand cores from the supporting plate (507) to the conveying roller table (515).
8. A method of processing a metal casting using a cold box core shooter for a metal casting according to claim 7, further comprising the steps of:
s1, completing sand core demolding by using a cold core box core shooter, wherein the sand core is jacked up by a jacking rod (403);
s2, starting a first linear driving piece (509), and pushing an adjusting piece (501) to be abutted to the side part of the lower core box;
s3, starting a first rotary driving piece (510), rotating the rotary piece (502) to a horizontal position, communicating a first hole (5023) with a first through hole (5012), abutting a limiting plate (512) on the inner wall of a first groove (5011), and enabling the upper end face of a supporting plate (507) to be flush with the end face of a push rod (403);
s4, starting an electric clamping jaw (513), clamping the moving rod (503), pulling the moving rod to the first through hole (5012), and clamping the supporting plate (507) to the top rod (403) and attaching the supporting plate to the bottom surface of the sand core;
s5, the ejector rod (403) descends, the sand core falls onto the supporting plate (507), and the adjusting piece (501) moves along the y axis to send out the sand core.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210877921.0A CN115213359B (en) | 2022-07-25 | 2022-07-25 | Cold core box core shooting machine for metal castings and processing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210877921.0A CN115213359B (en) | 2022-07-25 | 2022-07-25 | Cold core box core shooting machine for metal castings and processing method |
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| CN115213359A CN115213359A (en) | 2022-10-21 |
| CN115213359B true CN115213359B (en) | 2023-07-04 |
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| CN115582518B (en) * | 2022-10-24 | 2023-11-28 | 台州誉迎科技有限公司 | Control system and control method of core shooter |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB847083A (en) * | 1956-10-29 | 1960-09-07 | Foundry Equipment Ltd | Improvements in or relating to foundry core making machines |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2437997A1 (en) * | 1974-08-07 | 1976-02-26 | Vogel & Schemmann Masch | Core shooting machine for mfg. hollow sand cores - with simultaneous filling of two split core boxes contg. mandrels |
| CN101352752B (en) * | 2008-09-11 | 2010-06-02 | 冯新林 | Cold-box core blower |
| CN104815968A (en) * | 2015-05-13 | 2015-08-05 | 上海皮尔博格有色零部件有限公司 | Cold core machine pickup device and cold core machine pickup method |
| CN111320069A (en) * | 2018-12-14 | 2020-06-23 | 新兴重工湖北三六一一机械有限公司 | Tool for hoisting sand core |
| CN109807291B (en) * | 2019-03-26 | 2024-04-16 | 苏州明志科技股份有限公司 | Core making machine, die filling method of core making machine and core making method |
| CN212050176U (en) * | 2020-05-08 | 2020-12-01 | 苏州纽方兴纳米材料有限公司 | Automatic lifting hook device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB847083A (en) * | 1956-10-29 | 1960-09-07 | Foundry Equipment Ltd | Improvements in or relating to foundry core making machines |
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