CN115213359A - Cold box core shooter for metal casting and processing method - Google Patents
Cold box core shooter for metal casting and processing method Download PDFInfo
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- CN115213359A CN115213359A CN202210877921.0A CN202210877921A CN115213359A CN 115213359 A CN115213359 A CN 115213359A CN 202210877921 A CN202210877921 A CN 202210877921A CN 115213359 A CN115213359 A CN 115213359A
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- 238000005058 metal casting Methods 0.000 title claims abstract description 20
- 238000003672 processing method Methods 0.000 title description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 78
- 239000004576 sand Substances 0.000 claims abstract description 66
- 238000009434 installation Methods 0.000 claims abstract description 17
- 238000012546 transfer Methods 0.000 claims description 29
- 238000002347 injection Methods 0.000 claims description 11
- 239000007924 injection Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 244000035744 Hura crepitans Species 0.000 claims description 8
- 238000013459 approach Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 description 9
- 230000008569 process Effects 0.000 description 8
- 238000010926 purge Methods 0.000 description 5
- 150000001412 amines Chemical class 0.000 description 4
- 238000007664 blowing Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 238000010923 batch production Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011155 quantitative monitoring Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 238000010408 sweeping Methods 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 and a core box installation mechanism, wherein the sand adding mechanism, the sand shooting mechanism and the core box installation mechanism are arranged on the machine body, the core box installation mechanism further comprises a workpiece taking mechanism, the installation base is movably arranged on the machine body along a z axis, the workpiece taking mechanism comprises an adjusting part, a first groove and a first connecting rod, the adjusting part is movably arranged on the machine body along the x axis, a rotating part is rotatably arranged in the first groove along the y axis, the rotating part is provided with a rotating part and a bearing part which are connected, the first connecting rod is further provided with a first hole, the moving rod is movably arranged in the first hole along the z axis, one end of the first connecting rod is hinged on the moving rod, the second connecting rod is hinged at the other end of the two first connecting rods, the middle position of the two second connecting rods is hinged, the plurality of the connecting rods are respectively hinged on the two second connecting rods, and the connecting rods are respectively arranged on two supporting plates. By the technical scheme, the problem of low production efficiency of the core shooter of the cold core box in the prior art is solved.
Description
Technical Field
The invention relates to the technical field of core shooters, in particular to a cold-box core shooter for metal castings and a processing method.
Background
In the casting production, the requirement on the sand core is 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 installation mechanism and a hydraulic, electric and gas making part, a sand mixer can be used for providing core sand for the cold-box core shooter, and a triethylamine gas generator is used for providing hardening gas for the cold-box core shooter.
The working principle of the existing cold box core shooter is as follows: when the integral sand shooting component is in a sand adding position, a sand adding valve is opened, core sand flows into a shooting cylinder through a gate (quantitative monitoring is available), after the sand is added, the sand shooting component moves to the upper part of a core box, a sand shooting frame and the shooting cylinder move downwards under the pushing of an oil cylinder to be in contact with the core box, a shooting head is pushed by an upper oil cylinder to be in plane contact with the upper surface of the shooting cylinder and be pressed tightly, a shooting head valve is opened for ventilation, a shooting head piston is opened, compressed air in an air storage tank shoots the core sand into the core box through a double shooting head, the double shooting cylinder, the sand shooting frame (two areas separated by a partition plate) and a core box shooting plate nozzle, and then residual air is discharged to finish core making and sand shooting. After the sand shooting is finished, the shooting head is lifted, under the pushing of the transposition oil cylinder, the sand shooting frame and the shooting barrel (with the core box sand shooting plate) move to a sand adding position for adding sand again, the amine blowing frame moves to the upper part of the core box at the same time, the upper pressure oil cylinder pushes the shooting head downwards again, the shooting head is contacted and pressed with the upper planes of the two pressing mechanisms on the amine blowing frame, amine gas is blown into the core box through the amine blowing frame, and 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, the sand core (formed product) is manually taken down by staff, the sand core is easily damaged in the process, the consistency of the product is influenced during batch production, and after the sand core is taken down, the core box is manually swept and then the next sand shooting is carried out, so that time and labor are wasted, the sweeping completeness cannot be guaranteed, 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-box core shooter for metal castings and a processing method thereof, and solves the problem of low production efficiency of the cold-box core shooter in the prior art.
The technical scheme of the invention is as follows:
a cold-core box core shooter for metal castings, which comprises a machine body, a sand adding mechanism, a sand shooting mechanism and a core box installation mechanism which are sequentially arranged on the machine body from top to bottom, and a workpiece taking mechanism arranged on the machine body,
the core box mounting mechanism comprises a core box mounting mechanism,
a mounting seat which is movably arranged on the machine body along the z axis, a lower core box is arranged on the mounting seat,
the pick-up mechanism comprises a pick-up mechanism,
the adjusting piece is arranged on the machine body in a moving mode along an x axis and located on one side of the mounting seat, the adjusting piece abuts against or cancels to abut against the side portion 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 rotatably arranged in the first groove along the y axis, after the rotating part rotates, the first groove is communicated with or not communicated with the first through hole, the rotating part is also provided with a first hole, the first hole penetrates through the rotating part and extends to the bearing part, and the part extending to the bearing part is communicated with the outside of the rotating part,
a moving rod arranged in the first hole in a moving mode along the z axis,
one end of each first connecting rod is hinged on the movable rod, the number of the first connecting rods is two along the x axis,
two second connecting rods are symmetrically arranged along the x axis and are respectively hinged at the other ends of the two first connecting rods, one position in the middle of the two second connecting rods is mutually hinged and is hinged on the bearing part,
two 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 X-axis is provided with two supporting plates symmetrically, and the connecting rods are arranged on the two supporting plates respectively.
As a further technical proposal, the pickup mechanism also comprises,
a mounting plate disposed on the body,
a first linear driving member arranged on the mounting plate and in driving connection with the adjusting member,
and the first rotating driving part is arranged on the adjusting part and is in driving connection with the rotating part.
As a further technical proposal, the pickup mechanism also comprises,
one end of the first tension spring acts on the bottom wall of the first hole, the other end of the first tension spring acts on the moving rod and is used for providing force for the moving rod to be close to the bottom wall of the first hole,
a limiting plate arranged on the bearing part and positioned at the bottom wall 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 movably arranged at the notch, the moving directions of the two supporting plates are opposite, and the width of the notch is larger than that of the lower core box.
As a further technical proposal, the core box installation mechanism also comprises,
a workbench which is movably arranged on the machine body along the z axis, the mounting seat is arranged on the workbench,
and the ejector rod is movably arranged on the mounting seat along the z axis and penetrates out of the lower core box after moving or is cancelled.
As a further technical proposal, the sand adding mechanism comprises,
and the sand box is arranged on the machine body and is positioned at the top of the machine body.
As a further technical proposal, the sand shooting mechanism comprises,
the sand shooting box is movably arranged on the machine body along the x axis,
the air injection 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 body, is positioned on one side of the sand box and is used for ejecting the sand shooting box or the air injection box onto the upper core box.
As a further technical proposal, the pickup mechanism also comprises,
a transfer platform positioned at one side of the machine body,
the conveying roller way is positioned at one side of the transfer table, the number of the conveying rollers at the head end of the conveying roller way is two at intervals,
the transfer plate rotates and goes up and down to set up on the transfer table, the transfer plate is used for transporting the psammitolite from the layer board to the transfer table is last.
As a further technical scheme, the through hole for the ejector rod to pass through on the lower core box 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 mounting mechanism also comprises,
the rotary disc is rotatably arranged at the end part of the ejector rod, one end face of the rotary disc is flush with the surface of the lower core box, the other end face of the rotary disc is provided with a plurality of shifting pieces, the ejector rod is further rotatably arranged on the mounting seat, the rotary disc is provided with a first hole, a spring is arranged in the first hole,
the inner gear sleeve is arranged on the rotary table and is positioned in the first hole,
the twist screw rod penetrates through the inner gear sleeve and rotates and moves in the hole I, a baffle is connected to the end of the twist screw rod and abuts against the spring,
and the ratchet wheel is sleeved on the spiral helical rod and is positioned in the inner gear sleeve, and after the spiral helical rod is pushed, the ratchet wheel is meshed with the inner gear sleeve or is not meshed with the inner gear sleeve.
As a further technical scheme, a metal casting machining method is further provided, and comprises the following steps:
s1, using a cold box core shooter to complete sand core demoulding, and jacking up a sand core by an ejector rod;
s2, starting the first linear driving piece, and pushing the adjusting piece to abut against the side part of the lower core box;
s3, starting the first rotating driving piece, rotating the rotating piece to a horizontal position, communicating the first hole with the first through hole, abutting the limiting plate on the inner wall of the first groove, and enabling the upper end face of the supporting plate to be flush with the end face of the ejector rod;
s4, starting the electric clamping jaw, clamping the moving rod, pulling the moving rod to the first through hole, clamping the supporting plate on 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 invention changes the steps of manually taking out the sand core and purging the upper core box and the lower core box in the existing production process into mechanical and automatic operation, shortens the overall production time, improves the production efficiency, avoids the condition that the sand core is easily damaged by manual workpiece taking, saves manpower and material resources, purges the upper core box and the lower core box more comprehensively and efficiently, and improves the forming consistency of the sand core.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
FIG. 1 is a schematic view of an angular perspective structure of the present invention;
FIG. 2 is a schematic perspective view of another embodiment of the present invention;
FIG. 3 is a schematic perspective view of the present invention without the core box mounting mechanism;
FIG. 4 is an enlarged view of a portion A of FIG. 3;
FIG. 5 is a schematic view of the internal structure of the carrier rod of the present invention;
FIG. 6 is an enlarged view of a portion B of FIG. 5;
fig. 7 is a schematic structural diagram of another embodiment of the present invention.
In the figure: 1. the sand shooting device comprises a machine body, 2, a sand adding mechanism, 201, a sand box, 3, a sand shooting mechanism, 301, a sand shooting box, 302, an air injection box, 303, a second linear driving piece, 4, a core box installation mechanism, 401, an installation seat, 402, a workbench, 403, a top rod, 404, a rotary table, 4041, a first hole, 405, a spring, 406, an inner gear sleeve, 407, a spiral rod, 408, a baffle, 409, a ratchet wheel, 5, a piece taking mechanism, 501, an adjusting piece, 5011, a first groove, 5012, a first through hole, 502, a rotary piece, 5021, a rotary part, 5022, a bearing part, 5023, a first hole, 5024, a notch, 503, a moving rod, 504, a first connecting rod, 505, a second connecting rod, 506, a connecting rod, 507, a supporting plate, 508, an installation plate, 509, a first linear driving piece, 510, a first rotary driving piece, 511, a first tension spring, 512, a limiting plate, a 513, an electric clamping jaw, a transfer table, 515, a transfer plate 516, a third transfer plate, and a third transfer plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall relate to the scope of protection of the present invention.
Example 1
As shown in fig. 1 to 6, the present embodiment provides a cold-box core shooter for metal castings, which comprises a machine body 1, a sand adding mechanism 2, a sand shooting mechanism 3, a core box installation mechanism 4, a piece taking mechanism 5, a sand box loading mechanism and a piece taking mechanism, wherein the sand adding mechanism 2, the sand shooting mechanism 3 and the core box installation mechanism 4 are sequentially arranged on the machine body 1 from top to bottom,
the core box mounting mechanism 4 comprises a core box mounting mechanism,
a mounting seat 401 arranged on the machine body 1 along the z-axis in a moving way, a lower core box arranged on the mounting seat 401,
the pick-up mechanism 5 comprises a pick-up mechanism,
an adjusting member 501 movably disposed on the body 1 along the x-axis and located at one side of the mounting seat 401, the adjusting member 501 being moved to abut against or cancel the abutment against the side of the mounting seat 401, the adjusting member 501 having a first groove 5011, the first groove 5011 having a first through hole 5012,
the rotating member 502 is provided with a rotating part 5021 and a bearing part 5022 which are connected, the rotating part 5021 is rotatably arranged in a first slot 5011 along the y axis, after the rotating member 502 rotates, the first slot 5011 is communicated with or not communicated with a first through hole 5012, the rotating part 5021 is further provided with a hole one 5023, the hole one 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 member 502,
a moving rod 503 movably disposed along the z-axis within the first hole 5023,
one end of the first connecting rod 504 is hinged on the moving rod 503, the number of the first connecting rods 504 is two along the x axis,
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 is hinged on the bearing part 5022,
two 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 are respectively hinged on the two third connecting rods 517,
the supporting plates 507 are symmetrically arranged along the x axis, and the connecting rods 506 are respectively arranged on the two supporting plates 507.
In the 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 purging the upper core box and the lower core box in the existing production process into mechanical and automatic operation, shortens the overall production time, improves the production efficiency, avoids the condition that the sand core is easily damaged by manually taking the part, saves manpower and material resources, purges the upper core box and the lower core box more comprehensively and efficiently, and improves the consistency of sand core forming.
In detail, the inventor improves the existing cold-box core shooter, adds the workpiece taking mechanism 5, and the sand adding mechanism 2, the sand shooting mechanism 3 and the core box installation mechanism 4 are all the existing structures and are not described too much. The upper and lower dies, i.e. the upper core box and the lower core box, are not shown in the drawings. The lifting direction of the lower core box is defined as a z-axis direction, the left-right moving direction of the sand shooting box 301 of the sand shooting mechanism 3 is defined as an x-axis direction, and the y-axis direction is a front-back moving direction, the specific structure of the piece taking mechanism 5 is that a first linear driving piece 509 is mounted on a mounting plate 508, the first linear driving piece 509 can be an air 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 air cylinder, the push rod 403 is connected to the adjusting piece 501 to keep stable movement, the adjusting piece 501 is a square plate located on the side part of the lower core box and faces the lower core box, a groove, namely a first groove 5011, is formed in the end face of the adjusting piece 501 facing the lower core box, a rotatable rotating piece 502 is mounted in the first groove 5011, the rotating piece 502 is composed of a rotating part 5021 and a bearing part 5022, the rotating part 5021 can be a rotating shaft, and is rotatably mounted in the first groove 5011, the bearing part 5022 is similar to a U-shaped fork and is connected to the rotating part 5021, the notch 5024 is a vacant part between the two fork heads, then a hole 5023 is downwards arranged on the cylindrical surface of the rotating part 5021, the hole 5023 downwards penetrates through the rotating part 5021 and then extends into the bearing part 5022 without penetrating through the bearing part 5022, because the thickness of the bearing part 5022 is smaller than that of the rotating part 5021, the part of the hole 5023 extending to the bearing part 5022 is in the form of a groove and is communicated with the outside, a tension spring 511 is arranged in the hole 5023, the lower end of the tension spring is connected to the bottom wall of the hole 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 attached to the side wall of the hole 5023, the moving rod 503 moves in the hole 5023 in a lifting manner, the outside of the hole 5023 is provided with a limit plate 512 on the bearing part 5022, and the upper end face of the limit plate 512 is flush with the bottom wall of the hole 5023, the rotating part can be used for bearing the part of the first tension spring 511 extending out of the first hole 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 incline downwards 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, the middle position 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 rod 517 and the supporting plate 507 are connected onto the two supporting plates 502507 through a plurality of small connecting rods, the small connecting rods are hinged with the third connecting rods 517 and are fixed with the supporting plates 507, the two supporting plates 5024 can freely slide in the y axis direction, a through hole 5022, namely a first through hole 5012 is further formed in the first groove 5011, the initial state of the rotating part 502 is vertical state and is in the horizontal state, and the hole 5013 is communicated with the first through hole 5022 in the horizontal state.
The technology of the sand core forming of the core shooting machine is consistent with the prior art, namely, a lower core box firstly moves upwards to be ejected onto an upper core box, the upper core box and the lower core box are matched, then a sand shooting box 301 of a sand shooting mechanism 3 is abutted to the upper core box to complete sand shooting and then is separated from the upper core box to move under a sand box 201 of a sand adding mechanism 2 to supplement molding sand, when the sand shooting box 301 is separated, an air injection box 302 can be abutted to the upper core box to inject air to the sand core, the air injection box 302 is externally connected with a triethylamine gas generator to provide hardening gas, after air injection is completed, the air injection box 302 is separated from and reset, the upper core box and the lower core box are demoulded, a formed sand core is ejected out of the lower core box by an ejector rod 403, and the demoulding of the sand core is completed. Then the part taking mechanism 5 starts to operate, the first linear driving element 509 is started to push the adjusting element 501 towards the lower core box, the adjusting element 501 stops when abutting against the side part of the lower core box, then the first rotary driving element 510 is started to drive the rotary element 502 to rotate to the horizontal position, the limit plate 512 is abutted against the upper wall surface of the first groove 5011 to limit the position, the upper end surface of the supporting plate 507 is flush with the upper end surface of the push 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 retracts inwards, and then the two supporting plates 507 move towards each other, and (3) performing clamping action until the sand core is clamped on the cylindrical surface of the ejector rod 403, forming a corresponding groove on the supporting plate 507 according to the position of the ejector rod 403, enabling the ejector rod 403 to enter the groove, then descending the ejector rod 403, enabling the sand core to fall on the supporting plate 507 along the trend, additionally, arranging a guide rail which is guided along the y axis on the machine body 1, then installing the installation plate 508 on the guide rail, enabling the installation plate 508 to freely slide on the guide rail along the y axis direction, not drawing the guide rail in the drawing, then sliding the installation plate 508 out along the guide rail, loosening the electric clamping jaw 513, synchronously starting the first rotary driving part 510, resetting the adjusting part 501, and placing the sand core on a storage table. In addition, a gas nozzle can be arranged on the bearing part 5022 and connected to a triethylamine gas generator through a hose, and the upper core box and the lower core box are purged in the workpiece taking process without manually purging the upper core box and the lower core box.
In conclusion, the pick-up mechanism 5 can be controlled by programming and automatically operates without manual assistance, pick-up and air injection are orderly and efficiently carried out, manual operation is replaced, efficiency is improved, and the safety learning coefficient is higher.
Furthermore, the pick-up mechanism 5 also comprises,
a mounting plate 508 movably disposed on the body 1,
a first linear driving member 509, which is arranged on the mounting plate 508, is in driving connection with the adjusting 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.
Furthermore, the pick-up mechanism 5 also comprises,
a first tension spring 511, one end of which acts on the bottom wall of the first hole 5023 and the other end of which acts on the moving rod 503, is used for providing a force for the moving rod 503 to approach the bottom wall of the first hole 5023,
a limit plate 512 arranged on the bearing part 5022 and positioned at the bottom wall of the first hole 5023,
and a motor-driven gripper 513 provided on the mounting plate 508 and configured to grip the moving rod 503 and move toward the first through hole 5012.
Further, the bearing part 5022 is provided with a notch 5024, the two support plates 507 are arranged at the notch 5024 in a moving mode and in opposite moving directions, and the width of the notch 5024 is larger than that of the lower core box.
Furthermore, the core box mounting mechanism 4 also comprises,
a worktable 402 movably arranged on the body 1 along the z-axis, a mounting seat 401 arranged on the worktable 402,
and the ejector rod 403 moves along the z axis and is arranged on the mounting seat 401, and the ejector rod 403 penetrates out of the lower core box after moving or is cancelled.
Further, the sand adding mechanism 2 comprises a sand adding mechanism,
and 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 includes,
the sand shooting box 301 is arranged on the machine body 1 along the x axis in a moving way,
the air injection 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,
and a second linear driving member 303 provided on the body 1 at a side of the flask 201 for pushing the shooting box 301 or the 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 has 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 further comprises,
a rotary disc 404 which is rotatably arranged at the end part of the push rod 403, one end surface of the rotary disc 404 is flush with the surface of the lower core box, the other end surface is provided with a plurality of shifting sheets, the push rod 403 is also rotatably arranged on the mounting seat 401, the rotary disc 404 is provided with a first hole 4041, a spring 405 is arranged in the first hole 4041,
an inner gear sleeve 406, disposed on the turntable 404, is positioned within the first hole 4041,
the twist screw rod 407 passes through the inner gear sleeve 406 and rotates and moves in the first hole 4041, the end part of the twist screw rod 407 is connected with a baffle 408, the baffle 408 is abutted against the spring 405,
and the ratchet 409 is sleeved on the spiral screw rod 407 and is positioned inside the inner gear sleeve 406, and after the spiral screw rod 407 is pushed, the ratchet 409 is meshed with the inner gear sleeve 406 or is not meshed with the inner gear sleeve 406.
As shown in fig. 5 and 6, in this embodiment, in the process of shooting sand by the sand shooting box 301, the core sand is likely to be deposited in the cavity of the upper core box and the lower core box, which may cause uneven texture of the finally-formed sand core, so that the inventor adds a rotatable turntable 404 at the end of the ejector rod 403, one of two end surfaces of the turntable 404 can be well overlapped with the surface of the lower core box, without affecting the shape of the formed sand core, and the other end surface is provided with a plurality of shifting pieces, the ejector rod 403 can be rotated to drive the shifting pieces to rotate, the fallen core sand is continuously scattered around in the process of shooting sand, so that the core sand is scattered more uniformly, the ejector rod 403 can be rotated by the motor, and the motor is installed on the air cylinder or the hydraulic cylinder, thereby achieving two motions of lifting and rotating the ejector rod 403.
As shown in fig. 5, specifically, a groove is formed inwards at the end of the push rod, a rotatable turntable 404 is installed at the opening of the groove, a hole is formed inwards from the cylindrical surface of the turntable 404, that is, a hole i.e., a 4041 is formed, an inner toothed sleeve 406 is fixedly connected to the central position of the hole i 4041, the inner toothed 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 the spring 405, a hole is also formed in the cylindrical surface of the push rod 403 and is communicated with the hole i 4041, and the spiral rod 407 penetrates out of the push rod.
The rotating process of the turntable 404 is that the top rod 403 rises, the big diameter section of the through hole of the lower core box enters the small diameter section, in the process, the twist screw rod 407 can be pushed against the inner wall of the through hole under the elastic action of the spring 405, because the inner diameter is reduced, the twist screw rod 407 can gradually move towards the first hole 4041, the ratchet wheel 409 matched with the twist screw rod 407 can drive the inner gear sleeve 406 to rotate, the turntable 404 can be driven to turn over, the upper and lower positions of the two end faces are adjusted, when the upper and lower positions of the two end faces need to be adjusted again, only the top rod 403 needs to descend to return to the big diameter section, the twist screw rod 407 is ejected by the spring 408, the ratchet wheel 409 cannot drive the inner gear sleeve 406 to rotate in the process, and the above process is repeated to change the upper and lower positions of the two end faces.
In addition, in order to avoid the problem that the twist screw 407 is clamped on the lower core box when the top rod 403 returns to the through hole, the inventor installs a twist screw 407 at the head end of the twist screw 407
Further, a metal casting machining method is also provided, and comprises the following steps:
s1, completing sand core demoulding by using a cold box core shooter, and jacking up a sand core by a jacking rod 403;
s2, starting the first linear driving piece 509, and pushing the adjusting piece 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, enabling the first hole 5023 to be communicated with the first through hole 5012, enabling the limiting plate 512 to abut against 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, clamping the supporting plate 507 on the top rod 403 and attaching the supporting plate 507 to the bottom surface of the sand core;
s5, the ejector rod 403 descends, the sand core falls on the supporting plate 507, and the adjusting piece 501 moves along the y axis to send out the sand core.
Example 2
Furthermore, the pick-up mechanism 5 also comprises,
a transfer station 514, located on one side of the fuselage,
a conveying roller way 515 which is positioned at one side of the transfer table 514, the number of the conveying rollers at the head end of the conveying roller way 515 is two at intervals,
and the transfer plate 516 is arranged on the transfer table 514 in a rotating and lifting mode, and the transfer plate 516 is used for transferring the sand cores from the supporting plate 507 to a conveying roller way 515.
As shown in fig. 7, the present embodiment is different from embodiment 1 in that a guide rail is not additionally provided to move the mounting plate 508 along the y-axis, but a transfer table 514 is additionally provided, 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 an air cylinder to realize lifting, after the sand core is lifted by the support plate 507, the transfer plate 516 rotates to the lower side of the support plate 507, because the lifting part of the transfer plate 516 is narrower than the support plate 507, the sand core can fall into the area between the two support plates 507, at this time, the sand core can fall onto the transfer plate 516 only by normal resetting of the support plate 507, then the transfer plate 516 rotates back to move to the upper side of the conveying roller table 515, the transfer plate 516 descends, the sand core can pass through the area between the two conveying rollers, the sand core can be carried away on the conveying roller table 515, and the sand core taking out and conveying can be completed without manual handling.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A cold-box core shooter for metal castings comprises a machine body (1), and a sand adding mechanism (2), a sand shooting mechanism (3) and a core box installation mechanism (4) which are sequentially arranged on the machine body (1) from top to bottom, and is characterized by further comprising a workpiece taking mechanism (5) arranged on the machine body (1),
the core box mounting mechanism (4) comprises a core box mounting mechanism,
a mounting seat (401) which is movably arranged on the machine body (1) along the z-axis, a lower core box is arranged on the mounting seat (401),
the pick-up mechanism (5) comprises,
an adjusting piece (501) which is arranged on the machine body (1) along the x-axis in a moving mode and is positioned on one side of the mounting seat (401), the adjusting piece (501) abuts against or cancels to abut against the side portion 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),
a rotation piece (502) having a rotation portion (5021) and a bearing portion (5022) connected, the rotation portion (5021) is rotatably disposed in the first groove (5011) along the y axis, after the rotation piece (502) rotates, the first groove (5011) is communicated with or is not communicated with the first through hole (5012), the rotation portion (5021) further has a first hole (5023), the first hole (5023) penetrates through the rotation portion (5021) to extend to the bearing portion (5022), and a part extending to the bearing portion (5022) is communicated with the outside of the rotation piece (502),
a moving rod (503) arranged in the first hole (5023) in a moving mode along the z axis,
one end of each first connecting rod (504) is hinged on the moving rod (503), two first connecting rods (504) are symmetrical along the x axis,
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), one position in the middle of the two second connecting rods (505) is mutually hinged and is hinged on the bearing part (5022),
two 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) which are respectively hinged on the two third connecting rods (517),
the number of the supporting plates (507) is two along the x axis, and the connecting rods (506) are respectively arranged on the two supporting plates (507).
2. The cold-box core shooter for metal castings according to claim 1, characterized in that said extractor mechanism (5) further comprises,
a mounting plate (508) provided on the body (1),
a first linear drive member (509) arranged on the mounting plate (508) and in driving connection with the adjustment member (501),
the first rotating driving part (510) is arranged on the adjusting part (501) and is in driving connection with the rotating part (502).
3. A cold-box core shooter for metal castings according to claim 2, characterized in that said pick-off 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 rod (503) for providing a force to the moving rod (503) to approach the bottom wall of the first hole (5023),
a limit plate (512) arranged on the bearing part (5022) and positioned at the bottom wall position of the first hole (5023),
and the electric clamping jaw (513) is arranged on the mounting plate (508) and is used for clamping the moving rod (503) to move towards the first through hole (5012).
4. The cold-box core shooter for metal castings according to claim 1, characterized in that the bearing part (5022) has a gap (5024), the two pallets (507) are movably arranged at the gap (5024) and move in opposite directions, and the width of the gap (5024) is greater than that of the lower core box.
5. The cold-box core shooter for metal castings according to claim 1, characterized in that said core-box mounting mechanism (4) further comprises,
a workbench (402) movably arranged on the machine body (1) along the z-axis, the mounting seat (401) is arranged on the workbench (402),
and the ejector rod (403) is movably arranged on the mounting seat (401) along the z axis, and the ejector rod (403) penetrates out of the lower core box after moving or is cancelled.
6. A cold-box core shooter for metal castings according to claim 1, characterized in that said 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).
7. Cold box core shooter for metal castings according to claim 6, characterized in that said sand shooting mechanism (3) comprises,
a sand shooting box (301) which is movably arranged on the machine body (1) along an x axis,
the air injection 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),
the second linear driving piece (303) is arranged on the machine body (1), is positioned on one side of the sand box (201), and is used for ejecting the sand shooting box (301) or the air injection box (302) onto an upper core box.
8. The cold-box core shooter for metal castings according to claim 1, characterized in that said extractor mechanism (5) further comprises,
a transfer station (514) located on one side of the fuselage,
a conveying roller way (515) positioned at one side of the transfer platform (514), wherein two conveying rollers positioned at the head end of the conveying roller way (515) are arranged at intervals,
the transfer plate (516) is arranged on the transfer table (514) in a rotating and lifting mode, and the transfer plate (516) is used for transferring the sand cores from the supporting plate (507) to the conveying roller way (515).
9. The cold-box core shooter for metal castings according to claim 5, characterized in that the through hole of the lower core box for the ejector pin (403) to pass through has 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 pin (403), the core box mounting mechanism (4) further comprises,
the turntable (404) is rotatably arranged at the end part of the ejector rod (403), one end face of the turntable (404) is flush with the surface of the lower core box, the other end face of the turntable is provided with a plurality of shifting pieces, the ejector rod (403) is also rotatably arranged on the mounting base (401), the turntable (404) is provided with a first hole (4041), and a spring (405) is arranged in the first hole (4041),
an internal gear sleeve (406) disposed within the first aperture (4041),
a ratchet (409) located inside the inner toothed sleeve (406) coaxially with the inner toothed sleeve (406),
twist screw pole (407), with ratchet (409) cooperation promotes behind twist screw pole (407), ratchet (409) with interior tooth cover (406) meshing or cancellation meshing twist screw pole (407) end connection has baffle (408), baffle (408) butt is in on spring (405).
10. A method of processing metal castings, comprising a cold-box core shooter for metal castings according to any of the claims 1 to 9, characterized by the further steps of:
s1, completing sand core demoulding by using a cold box core shooter, and jacking up a sand core by a jacking rod (403);
s2, starting the first linear driving piece (509) and pushing the adjusting piece (501) to abut against the side part of the lower core box;
s3, starting the first rotating driving piece (510), rotating the rotating piece (502) to a horizontal position, communicating the first hole (5023) with the first through hole (5012), abutting the limiting plate (512) against 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 an electric clamping jaw (513), clamping the moving rod (503), pulling the moving rod to the first through hole (5012), 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 on the supporting plate (507), and the adjusting piece (501) moves along the y axis to send out the sand core.
Priority Applications (1)
| 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 |
|---|---|---|---|
| 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 true CN115213359A (en) | 2022-10-21 |
| CN115213359B CN115213359B (en) | 2023-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115582518A (en) * | 2022-10-24 | 2023-01-10 | 台州誉迎科技有限公司 | Control system and control method of core shooter |
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| 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 |
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| 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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| GB847083A (en) * | 1956-10-29 | 1960-09-07 | Foundry Equipment Ltd | Improvements in or relating to foundry core making machines |
| 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 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
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|---|---|
| CN115213359B (en) | 2023-07-04 |
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