CN114872135A

CN114872135A - Lost foam production equipment

Info

Publication number: CN114872135A
Application number: CN202210592455.1A
Authority: CN
Inventors: 陈仕栎; 何等举
Original assignee: Cixi Huili Machinery & Electric Co ltd
Current assignee: Cixi Huili Machinery & Electric Co ltd
Priority date: 2022-05-28
Filing date: 2022-05-28
Publication date: 2022-08-09
Anticipated expiration: 2042-05-28
Also published as: CN114872135B

Abstract

The utility model relates to a disappearance mould production facility, including supporting in subaerial frame, set up and supply the foam mold core to insert fixed centre gripping base and rotate the cut mould subassembly that sets up in the frame upper end, the cut mould subassembly includes cut mould frame and align to grid nickel-chromium heating wire on the cut mould frame, the centre gripping base includes the bottom plate and level in proper order sets up the multiunit centre gripping group in the bottom plate upper end, form the groove of cutting that supplies nickel-chromium heating wire to cut into between the adjacent centre gripping group, frame side level is provided with the slide rail, the bottom plate slides along frame upper end and slide rail upper end level, it is equipped with the stay cord to cut one side system that the pivot axle center was kept away from to the mould frame side, the frame side is provided with the pull ring that supplies the stay cord to pass, the frame was kept away from to the slide rail one end is provided with first fixed pulley, the stay cord is around first fixed pulley and is established in the one end that the bottom plate is close to the slide rail. This application has the reduction by characteristics such as probability that nickel chromium heating wire cut and scald.

Description

Lost foam production equipment

Technical Field

The application relates to the technical field of lost foam production, in particular to lost foam production equipment.

Background

At present, lost foam casting (also called solid casting) is solid casting of foam plastic molds by adopting a binder-free dry sand combined vacuumizing technology, and is a novel casting method for bonding and combining foam molds with similar sizes and shapes of castings into a mold cluster, coating refractory paint on the mold cluster, drying the mold cluster, burying the mold cluster in dry quartz sand for vibration molding, pouring under negative pressure to gasify the mold, enabling liquid metal to occupy the position of the mold, and solidifying and cooling the mold cluster to form the castings.

The support that will have nickel-chromium heating wire after fixing the foam among the prior art pushes down for the nickel-chromium heating wire uses after cutting the size that the foamed plastic gasification becomes needs, and nickel-chromium heating wire self is comparatively sharp and higher at electrical heating after temperature, when installing the foam and taking out the foam of cutting the completion, all has the probability of being scalded by nickel-chromium heating wire.

Disclosure of Invention

In order to reduce the probability of being scalded by nickel chromium heating wire, this application provides a disappearance mould production facility.

The above object of the present application is achieved by the following technical solutions:

a lost foam production device comprises a frame supported on the ground, a clamping base arranged at the upper end of the frame for inserting and fixing a foam mold core, and a mold cutting assembly rotatably arranged at the upper end of the frame, the die cutting assembly comprises a die cutting frame and nickel-chromium heating wires which are uniformly arranged on the die cutting frame, the clamping base comprises a bottom plate and a plurality of groups of clamping groups which are sequentially and horizontally arranged at the upper end of the bottom plate, a slitting groove for the nickel-chromium electric heating wire to cut is formed between every two adjacent clamping groups, a slide rail is horizontally arranged at the side end of the frame, the bottom plate horizontally slides along the upper end of the frame and the upper end of the slide rail, a pull rope is tied at one side of the side end of the die cutting frame far away from the axis of the rotating shaft, a pull ring for the pull rope to pass through is arranged at the side end of the frame, one end of the sliding rail, which is far away from the rack, is provided with a first fixed pulley, and the pull rope is wound on the first fixed pulley and tied at one end, which is close to the sliding rail, of the bottom plate.

Through adopting above-mentioned technical scheme, when using this disappearance mould production facility, move to the slide rail by frame upper end water level and smooth earlier the base, make the centre gripping base keep away from the nickel-chromium heating wire, place the foam mold core on the centre gripping base afterwards, push back the bottom plate level to the normal position again, rotate the cutting die frame, the nickel-chromium heating wire of high temperature cuts into the foam mold core gradually and imbeds in the grooving, finally cut off the foam mold core completely, reverse rotation cutting die frame this moment, make the nickel-chromium heating wire withdraw from in the foam mold core, and the stay cord is stretched under cutting die frame's drive, thereby take out the bottom plate from cutting die frame lower extreme, alright take off the foam mold core that the gasification was cut this moment and install new foam mold core and cut the gasification. This scheme makes the cutting die frame be in when not gasifying the state of cutting, under the effect of stay cord, the bottom plate will be located the slide rail always to make can not contact with the nickel-chromium heating wire when installing and taking off the foam mold core, thereby reduce the probability of being scalded by the nickel-chromium heating wire in the production process, it is safer.

Preferably, the upper end of the frame is rotatably provided with a second fixed pulley on one side of the bottom plate close to the axis of the rotating shaft of the die cutting frame, a counterweight rope is tied at one end of the bottom plate close to the second fixed pulley and wound on the second fixed pulley in a vertical state, and a counterweight block is fixed at the tail end of the counterweight rope.

Through adopting above-mentioned technical scheme, rotate in the frame and set up the second fixed pulley, set up the counter weight rope in the one end of bottom plate, hang down the frame lower extreme naturally after on the second fixed pulley with the counter weight rope, then at the fixed balancing weight of the lower extreme of counter weight rope, provide the pulling force that the bottom plate level slided and resets through the balancing weight, after fixing the foam mold core on the centre gripping base on the bottom plate, under the drive of balancing weight, do not need very big power alright rotate the die cutting frame, make operation process lighter.

Preferably, the cutting die frame pass through the axis of rotation rotate connect in the frame upper end, be provided with on the cutting die frame parallel and level in the pressure spool of axis of rotation, the axis of rotation with the pressure spool compresses tightly nickel-chromium heating wire to being on a parallel with the cutting die frame, the cutting die frame in axis of rotation one side the pressure spool one side is rotated and is provided with the wind-up roll, the winding has the company to restrict on the wind-up roll, the company restrict around in the axis of rotation is located in parallel the bottom plate is close to axis of rotation one end.

Through adopting above-mentioned technical scheme, axis of rotation and the line pressing axle of installing on the die cutting frame through die cutting frame self compress tightly the nickel-chromium heating wire, make the nickel-chromium heating wire keep the state of tightening, guarantee all nickel-chromium heating wires all parallel in the production process simultaneously, and then make the position of cutting more accurate, the vestige of cutting is more level and smooth, the wind-up roll rotates and convolutes the interlock rope in week side gradually simultaneously, the one end at the bottom plate is fixed to the other end of interlock rope, the interlock rope can stimulate the bottom plate and remove to the downside of die cutting frame, thereby through the cooperation stay cord of interlock rope, make the bottom plate smoothly reset, and is more convenient.

Preferably, two side ends of the winding roller protrude out of the die cutting frame and are coaxially provided with winding gears, support plates for the rotating shaft to be rotatably connected are vertically arranged at two side ends of the frame, and arc-shaped racks meshed with the winding gears are arranged on one end faces, close to each other, of the two support plates.

Through adopting above-mentioned technical scheme, when pushing down and rotating the die cutting frame, the rolling gear at wind-up roll both ends takes place to rotate under the effect of arc rack, and then drive the wind-up roll and take place to rotate, thereby to coil the even movable rope, thereby drive bottom plate horizontal migration to die cutting frame downside, when lifting the die cutting frame, the wind-up roll is counter-rotating under the drive of rolling gear, and then make the even movable rope by the wind-up roll on scatter, the stay cord can drive the bottom plate roll-off this moment, this scheme makes the rotation of the die cutting frame is cut in the complete cooperation of the slip of bottom plate, and is more convenient.

Preferably, the wind-up roll in the inboard coaxial drive gear that is provided with of cutting die frame, the horizontal slip of cutting die frame inside wall is provided with the meshing in the drive rack of drive gear, two be provided with the butt between the drive rack in the nickel-chromium heating wire and right the decontamination abrasive brick that the nickel-chromium heating wire cleaned.

Through adopting above-mentioned technical scheme, when gasifying the foam through nickel-chromium heating wire and cutting, the nickel-chromium heating wire of high temperature will need the gasification to cut the foam of position and melt fast, the foam of melting form will have the part to adhere to nickel-chromium heating wire surface, wait next time when gasifying and cutting, will make the gasification cut the border untidy, influence the gasification even and cut efficiency, through setting up the decontamination abrasive brick in this application, when rotating the cutting die frame, drive gear takes place to rotate, and then drive the drive rack and remove, the drive rack drives and removes abrasive brick butt and live the nickel-chromium heating wire and remove, thereby it clears away to be stained with the foam melting impurity that attaches on nickel-chromium heating wire surface, make gasification cut every time and all can keep higher gasification to cut efficiency and gasification effect of cutting.

Preferably, the decontamination grinding block comprises a grinding plate, a plurality of groups of grinding groups and each group of grinding groups is provided with a grinding block, the grinding groups comprise two side grinding blocks which are abutted together, the side grinding blocks are arranged in the same group, one end surface of each side grinding block, which is close to each other, is provided with a grinding groove for embedding the nickel-chromium heating wire, and the side grinding blocks are arranged on the inner wall of the grinding groove in a protruding mode and provided with grinding convex points.

Through adopting above-mentioned technical scheme, the gasification of nickel-chromium heating wire is cut the direction and is cut for vertical gasification, make to be stained with the melting foam that attaches in nickel-chromium heating wire both sides and cut follow-up gasification and have great influence, the lower extreme at the grinding plate in this scheme sets up the side abrasive brick, both sides abrasive brick through the same group carries out the centre gripping to the nickel-chromium heating wire, make nickel-chromium heating wire embedding grind the inslot, when whole decontamination abrasive brick removes, the piece of nickel-chromium heating wire both sides is clear away through the protruding point of polishing of grinding the inslot, and then guarantee that nickel-chromium heating wire gasification cuts every time and all can keep higher gasification to cut efficiency and gasification and cut the effect.

Preferably, the side grinding block is provided with arc chamfers at two ends of the grinding groove.

Through adopting above-mentioned technical scheme, the arc chamfer is set to at the both ends that the side grinding block will grind the groove for the side grinding block can not fish tail nickel-chromium heating wire easily when removing, and then causes the life reduction of nickel-chromium heating wire.

Preferably, the side grinding block is rotatably connected to the lower end of the grinding plate, the upper end of the grinding plate is provided with a cleaning cylinder for driving the side grinding block to rotate to be attached to the lower end face of the grinding plate, the grinding plate is uniformly provided with ventilation holes, the side grinding block is uniformly provided with chip blowing holes communicated with the ventilation holes and the grinding grooves, and the upper end of the grinding plate is provided with a chip blowing fan blowing towards the ventilation holes.

Through adopting above-mentioned technical scheme, after along with clearance piece each time, the piece will be piled up at the mill inslot, in this scheme, after having cleared up the piece to nickel-chromium heating wire, drive both sides abrasive brick of same group through the clearance jar and rotate terminal surface under the laminating abrasive sheet, blow to the venthole through blowing the bits fan afterwards for high velocity air gets into and blows off in blowing the bits is downthehole, thereby blows off the piece that will grind the inslot, and it is more convenient to guarantee follow-up clearance piece.

Preferably, every group centre gripping group all includes first clamp splice and second clamp splice, first clamp splice is located and keeps away from one side in cutting die carrier pivot axle center, the second clamp splice is located first clamp splice is close to one side in cutting die carrier pivot axle center, first clamp splice with form the centre gripping groove that supplies the foam mold core to put into between the second clamp splice, first clamp splice is kept away from the one end of second clamp splice is provided with and supports tightly and promote first clamp splice remove to the pressure spring of second clamp splice one side, first clamp splice up end is being close to one side of second clamp splice is provided with the limiting plate of butt in foam mold core up end.

Through adopting above-mentioned technical scheme, the first clamp splice of pressure spring butt removes to second clamp splice one side, thereby with the foam centre gripping, make the foam mold core can not remove easily when being cut by the gasification, guarantee the gasification effect of cutting, simultaneously after the die cutting is accomplished, when die cutting frame rotates and resets, the nichrome heating wire need wear out in the gap that the gasification was cut again, can drive the foam mold core and deviate from the centre gripping inslot, set up the stopper from first clamp splice upper end in this scheme, carry out the butt to the foam mold core through the limiting plate, make the foam mold core can not be taken away from by nichrome heating wire.

Preferably, a material bearing box is arranged at one side end of the rack, a material discharging table for placing foam mold cores is horizontally arranged at one side end of the material bearing box, the material discharging table is far away from one end of the rack, and a push rod for pushing the foam mold cores to the clamping grooves is horizontally arranged at the sliding end of one end of the rack.

Through adopting above-mentioned technical scheme, set up at one side end of frame and hold the workbin, set up the blowing platform at another side end of frame, will not put into the blowing bench by the foam mold core of cutting, push into the centre gripping inslot through the push rod afterwards with the foam mold core, and the foam mold core that has been cut the completion by the gasification is pushed away from the centre gripping groove and falls into and hold the workbin to make material loading and unloading faster, it is more convenient.

To sum up, the beneficial technical effect of this application does:

1. when the lost foam production equipment is used, the base is moved to the slide rail from the upper end of the rack in a horizontal and smooth manner to enable the clamping base to be far away from the nickel-chromium heating wire, then the foam mold core is placed on the clamping base, the bottom plate is horizontally pushed back to the original position, the cutting mold frame is rotated, the nickel-chromium heating wire is gradually cut into the foam mold core and embedded into the cutting groove, finally the foam mold core is completely cut off, the cutting mold frame is rotated reversely at the moment to enable the nickel-chromium heating wire to be withdrawn from the foam mold core, the pull rope is pulled under the driving of the cutting mold frame, so that the bottom plate is pulled out from the lower end of the cutting mold frame, the foam mold core which is well gasified and cut can be taken down and a new foam mold core is installed for gasification and cutting, when the cutting mold frame is in an unvaporized and cut state, the bottom plate is always positioned on the slide rail under the action of the pull rope, so that the foam mold core can not be contacted with the nickel-chromium heating wire when the foam mold core is installed and taken down, thereby reducing the probability of being cut and scalded by the nickel-chromium heating wire in the production process and being safer;

2. when the rotary die cutting frame is pressed downwards, the winding gears at two ends of the winding roller rotate under the action of the arc-shaped racks, so that the winding roller is driven to rotate, the linkage rope is wound, the bottom plate is driven to horizontally move to the lower side of the die cutting frame, when the die cutting frame is lifted, the winding roller is driven by the winding gears to reversely rotate, the linkage rope is further scattered from the winding roller, at the moment, the pull rope can drive the bottom plate to slide out, the sliding of the bottom plate is completely matched with the rotation of the die cutting frame, and the rotary die cutting frame is more convenient;

3. through setting up the decontamination abrasive brick, when rotating the die-cutting frame, drive gear takes place to rotate, and then drives the drive rack and remove, and the drive rack drives and removes the abrasive brick butt and live the nickel-chromium heating wire and remove to be stained with the foam melting impurity that attaches on nickel-chromium heating wire surface and clear away, make gasification cut every time cut all can keep higher gasification to cut efficiency and gasification and cut the effect.

Drawings

FIG. 1 is a schematic structural view of a lost foam production apparatus;

FIG. 2 is an enlarged view of FIG. 1 at A;

FIG. 3 is a schematic structural view of another view angle of the lost foam production apparatus;

FIG. 4 is an enlarged view of FIG. 3 at B;

FIG. 5 is a schematic structural diagram of a third view angle of the lost foam production apparatus;

fig. 6 is an enlarged view of fig. 5 at C.

In the figure: 1. a frame; 2. clamping the base; 3. cutting the die assembly; 4. a slide rail; 5. a clamping group; 6. a chute; 7. a roller; 8. cutting grooves; 9. a first clamping block; 10. a second clamp block; 11. a clamping groove; 12. a pressure spring; 13. a limiting plate; 14. a material bearing box; 15. a discharge table; 16. a push cylinder; 17. a push rod; 18. cutting the die frame; 19. a nickel-chromium electric heating wire; 20. tensioning the spring; 21. a cantilever bar; 22. a rotating shaft; 23. a wire pressing shaft; 24. a positioning ring groove; 25. a wind-up roll; 26. a linkage rope; 27. a winding gear; 28. a support plate; 29. an arc-shaped rack; 30. a drive gear; 31. a slipping bracket; 32. a T-shaped chute; 33. a driving rack; 34. a decontamination grinding block; 35. grinding a plate; 36. grinding the group; 37. a side grinding block; 38. grinding a groove; 39. arc chamfering; 40. cleaning the air cylinder; 41. rotating and pulling the wire; 42. hole drawing; 43. an iron ring; 44. a scrap blowing fan; 45. a ventilation hole; 46. a chip blowing hole; 47. pulling a rope; 48. a pull ring; 49. a first fixed pulley; 50. a second fixed pulley; 51. a counterweight rope; 52. a counterweight block; 53. polishing the salient points; 54. a base plate.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

Referring to fig. 1 and 2, the lost foam production equipment comprises a frame 1 supported on the ground, a clamping base 2 arranged at the upper end of the frame 1 for inserting and fixing a foam mold core, and a mold cutting assembly 3 rotatably arranged at the upper end of the frame 1.

One side end of frame 1 is fixed with slide rail 4 through the bolt level, and centre gripping base 2 includes that the butt has seted up spout 6 at the bottom plate 54 that frame 1 upper end level slided and is located the multiunit centre gripping group 5 of bottom plate 54 upper end on slide rail 4, and spout 6 extends to the up end of frame 1, and bottom plate 54 lower extreme is connected with through the bearing rotation and inlays the gyro wheel 7 of establishing in spout 6 for bottom plate 54 can slide to slide rail 4 on frame 1.

The multiple groups of clamping groups 5 are horizontally arranged along the sliding direction perpendicular to the bottom plate 54, a cutting groove 8 is formed between every two adjacent groups of clamping groups 5, each group of clamping groups 5 comprises a first clamping block 9 and a second clamping block 10, the first clamping block 9 is positioned on one side far away from the rotating shaft 22 center of the die cutting frame 18, the second clamping block 10 is positioned on one side, close to the rotating shaft 22 center of the die cutting frame 18, of the first clamping block 9, a clamping groove 11 for placing a foam die core is formed between the first clamping block 9 and the second clamping block 10, the first clamping block 9 abuts against the bottom plate 54 to slide, the second clamping block 10 is welded on the bottom plate 54, a pressure spring 12 is welded on one side, far away from the second clamping block 10, of the first clamping block 9 at the upper end of the bottom plate 54, the other end of the pressure spring 12 abuts against one end face, far away from the second clamping block 10, of the first clamping block 9 is provided with a limiting plate 13 abutting against the upper end face of the foam die core on one side near the second clamping block 10.

The frame 1 has put the workbin 14 that holds in one side of slide rail 4, and frame 1 keeps away from one side end horizontal welding that holds workbin 14 has the blowing platform 15 that supplies the foam mold core to place, and the one end horizontal welding that frame 1 was kept away from to blowing platform 15 has push cylinder 16, and the welding has the push rod 17 that promotes foam mold core to centre gripping inslot 11 on the piston rod of push cylinder 16.

Referring to fig. 3 and 4, the die cutting assembly 3 includes a die cutting frame 18 rotatably connected to the upper end of the frame 1 through a rotation shaft 22, and a plurality of nichrome heating wires 19 uniformly arranged on the die cutting frame 18, the plurality of nichrome heating wires 19 being parallel to each other and arranged perpendicular to the rotation shaft 22 of the die cutting frame 18.

The cutting die frame 18 is a square frame, one side of the cutting die frame 18 far away from the sliding rail 4 through a bolt is fixed with a plurality of tensioning springs 20, each tensioning spring 20 is perpendicular to the rotating shaft 22 and is arranged, each tensioning spring 20 corresponds to a nickel-chromium heating wire 19, one end of each nickel-chromium heating wire 19 is arranged at one end of each tensioning spring 20, one end of each nickel-chromium heating wire 19 far away from each tensioning spring 20 is fixed on the upper end face of the cutting die frame 18 through a screw, and therefore the nickel-chromium heating wires 19 are tensioned through the tensioning springs 20.

A cantilever rod 21 is fixed in the middle of the upper end face of the die cutting frame 18 through a bolt, the cantilever rod 21 is parallel to a rotating shaft 22, the cantilever rod 21 is located on one side, close to the tension spring 20, of the rotating shaft 22, when the die cutting frame 18 rotates to be in a horizontal state, the cantilever rod 21 is located on the oblique upper side of the rotating shaft 22, a wire pressing shaft 23 is fixed at one end, far away from the tension spring 20, of the die cutting frame 18 through a bolt, the wire pressing shaft 23 is also parallel to the rotating shaft 22, when the die cutting frame 18 rotates to be in a horizontal state, the wire pressing shaft 23 is flush with the rotating shaft 22, a nickel-chromium heating wire 19 extends from one end of the tension spring 20 and abuts against the upper side of the cantilever rod 21 to be wound to the lower side of the rotating shaft 22 and the lower side of the wire pressing shaft 23 and is finally fixed at the upper end of the die cutting frame 18, and the part, used for gasification and cutting of the nickel-chromium heating wire 19, is in a parallel state in the die cutting frame 18.

The circumferential side ends of the rotating shaft 22 and the line pressing shaft 23 are circumferentially and uniformly provided with a positioning ring groove 24, so that the nickel-chromium heating wire 19 can be embedded in the positioning ring groove 24, and the nickel-chromium heating wire 19 cannot move along the axis of the rotating shaft 22 and the line pressing shaft 23.

The cutting die frame 18 is rotatably inserted with a winding roll 25 parallel to the rotating shaft 22 at one side of the rotating shaft 22, a connecting rope 26 is wound on the winding roll 25, the connecting rope 26 is wound on the cantilever rod 21 and is tied at one end of the bottom plate 54 close to the rotating shaft 22, two side ends of the winding roll 25 protrude out of the cutting die frame 18 and are connected with a winding gear 27 through a coaxial key, two side ends of the frame 1 are vertically provided with support plates 28 for the rotating shaft 22 to be rotatably connected, an end face, close to each other, of the two support plates 28 is fixedly provided with an arc-shaped rack 29 meshed with the winding gear 27 through a bolt, when the cutting die frame 18 rotates downwards, the winding gear 27 abuts against the arc-shaped rack 29 to rotate, the winding roll 25 is driven to rotate, the linkage is lifted and wound, and the bottom plate 54 is further pulled to move towards the lower side of the cutting die frame 18.

Referring to fig. 4 and 6, a driving gear 30 is coaxially keyed on the inner side of the die cutting frame 18 of the wind-up roll 25, a sliding support 31 is welded on the upper end face of the die cutting frame 18, a T-shaped chute 32 is formed on the sliding support 31, a driving rack 33 meshed with the driving gear 30 is inserted in the T-shaped chute 32 in a sliding manner, a decontamination grinding block 34 abutting against the nichrome heating wire 19 and wiping the nichrome heating wire 19 is arranged between the two driving racks 33, the decontamination grinding block 34 comprises a grinding plate 35 welded on one side end of the two driving racks 33 close to each other and a plurality of grinding groups 36 arranged at the lower end of the grinding plate 35 and aligned with each nichrome heating wire 19, each grinding group 36 comprises two side grinding blocks 37 rotatably connected to the lower end face of the grinding plate 35 through a rotating shaft, a grinding groove 38 for embedding the nichrome heating wire 19 is formed on one end face of the grinding blocks 37 at the two sides of the same group close to each other, grinding blocks 37 are integrally and are convexly provided with grinding convex points 53 on the inner wall of the grinding groove 38, the side grinding blocks 37 are provided with arc-shaped chamfers 39 at both ends of the grinding groove 38.

Referring to fig. 5 and 6, a plurality of cleaning cylinders 40 are fixed on the upper end of the grinding plate 35 through bolts, the piston rods of the cleaning cylinders 40 are perpendicular to the grinding plate 35 and face one side far away from the grinding plate 35, two rotating pull wires 41 are tied on the piston rods of the cleaning cylinders 40, pull holes 42 for the rotating pull wires 41 to pass through are formed in the two sides of the grinding plate 35, one end of the side grinding block 37 far away from the axis of the rotating shaft of the side grinding block is welded with an iron ring 43 for the rotating pull wire 41 far away from one end of the piston rod of the cleaning cylinder 40, so that when the piston rod of the cleaning cylinder 40 extends out, the side grinding block 37 can be driven to rotate through the rotating pull wires 41, chip blowing fans 44 are fixed on the two sides of the cleaning cylinder 40 at the upper end of the grinding plate 35 through bolts, air through holes 45 are formed in the lower side of the grinding plate 35, chip blowing holes 46 communicated with the grinding grooves 38 are formed in the side grinding block 37, when the side grinding block 37 rotates to abut against the lower end face of the grinding plate 35, the chip blowing holes 46 are aligned with the ventilation holes 45, and the chip blower 44 blows air toward the ventilation holes 45 to blow off chips in the grinding groove 38 along the chip blowing holes 46.

Referring to fig. 1 and 2, a pull rope 47 is tied on one side of the side end of the cutting die frame 18 away from the axis of the rotating shaft, a pull ring 48 for the pull rope 47 to pass through is fixed on the side end of the machine frame 1 through a bolt, one end of the slide rail 4 away from the machine frame 1 is rotatably connected with a first fixed pulley 49 through a bearing, and the pull rope 47 is wound around the first fixed pulley 49 and tied at one end of the bottom plate 54 close to the slide rail 4. When the cutting die holder 18 is rotated to the lifted state, the bottom plate 54 is pulled and pulled to horizontally slide on the slide rail 4, and at this time, the lower die and the upper die can be performed.

Referring to fig. 3 and 4, a second fixed pulley 50 is rotatably connected to one side of the bottom plate 54, which is close to the center of the rotating shaft 22 of the cutting die frame 18, at the upper end of the frame 1 through a bearing, a counterweight rope 51 is tied to one end of the bottom plate 54, which is close to the second fixed pulley 50, the counterweight rope 51 is wound around the second fixed pulley 50 in a vertical state, and a counterweight block 52 is fixed to the tail end of the counterweight rope 51.

The implementation principle of the embodiment is as follows:

when the lost foam production equipment is used, the foam mold core which is not gasified and cut is placed on the discharging platform 15, then the push rod 17 on the air cylinder 16 is pushed to push the foam mold core into the clamping groove 11, the gasified and cut foam mold core is pushed away from the clamping groove 11 and falls into the material receiving box 14, at the moment, the first clamping block 9 clamps the foam mold core in the clamping groove 11 under the action of the pressure spring 12, then the rotary die-cutting frame 18 is pressed downwards, the winding gears 27 at the two ends of the winding roller 25 rotate under the action of the arc-shaped rack 29, and then the winding roller 25 is driven to rotate, so that the connecting rope 26 is wound, the bottom plate 54 horizontally moves to the lower side of the die-cutting frame 18, meanwhile, the driving gear 30 rotates, and then the driving rack 33 moves, the driving rack 33 drives the decontamination grinding block 34 to move along the length direction of the nickel-chromium 19, the clamping grooves of the grinding blocks 37 at the two sides clamp the nickel-chromium electric heating wire 19 to move, foam melting impurities adhered to the surface of the nickel-chromium heating wire 19 are removed through the grinding salient points 53 in the grinding groove 38, the foam mold core is gasified and cut as the nickel-chromium heating wire 19 gradually contacts the foam mold core, then the cutting mold base 18 is rotated reversely, the linkage rope 26 is wound out from the winding roller 25, the nickel-chromium heating wire 19 is withdrawn from the foam mold core, the pull rope 47 is pulled under the driving of the cutting mold base 18, thereby the bottom plate 54 is drawn out from the lower end of the cutting die frame 18, the cleaning air cylinder 40 drives the two side grinding blocks 37 of the same group to rotate to the lower end surface of the attaching grinding plate 35, then the blowing fan 44 blows air into the ventilation hole 45, so that high-speed air flow enters the chip blowing hole 46 and is blown out, thereby blowing off the scraps in the grinding grooves 38, and after the scraps are cleaned, the grinding blocks 37 on the two sides of the same group rotate to be attached together and clamp the nickel-chromium heating wire 19 to prepare for next gasification cutting.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A lost foam production equipment is characterized in that: including supporting in subaerial frame (1), set up in frame (1) upper end supplies the foam mold core to insert fixed centre gripping base (2) and rotate set up in cut mould subassembly (3) of frame (1) upper end, cut mould subassembly (3) including cut mould frame (18) and align to grid in cut nickel-chromium heating wire (19) on mould frame (18), centre gripping base (2) include bottom plate (54) and in proper order the level set up in multiunit centre gripping group (5) of bottom plate (54) upper end, it is adjacent form between centre gripping group (5) and supply branch grooving (8) that nickel-chromium heating wire (19) cut into, frame (1) side level is provided with slide rail (4), bottom plate (54) are followed frame (1) upper end with slide rail (4) upper end level slides, it is equipped with stay cord (47) to cut one side system that mould frame (18) side kept away from the pivot axle center, the pull ring (48) for the pull rope (47) to penetrate is arranged at the side end of the rack (1), a first fixed pulley (49) is arranged at one end, far away from the rack (1), of the sliding rail (4), and the pull rope (47) winds around the first fixed pulley (49) and is tied to one end, close to the sliding rail (4), of the bottom plate (54).

2. A lost foam production apparatus according to claim 1, wherein: frame (1) upper end in bottom plate (54) are close to one side of cutting die frame (18) pivot axle center is rotated and is provided with second fixed pulley (50), bottom plate (54) are close to the one end system of second fixed pulley (50) is equipped with counter weight rope (51), counter weight rope (51) wind in second fixed pulley (50) are vertical state, the end of counter weight rope (51) is fixed with balancing weight (52).

3. A lost foam production apparatus according to claim 1, wherein: cut die carrier (18) through axis of rotation (22) rotate connect in frame (1) upper end, be provided with parallel and level in on cut die carrier (18) line axle (23) of pressing of axis of rotation (22), axis of rotation (22) with press line axle (23) to compress tightly nickel-chromium heating wire (19) to being on a parallel with cut die carrier (18), cut die carrier (18) in axis of rotation (22) one side is rotated and is provided with wind-up roll (25), the winding has linkage rope (26) on wind-up roll (25), linkage rope (26) wind in axis of rotation (22) are and are located bottom plate (54) are close to axis of rotation (22) one end.

4. A lost foam production apparatus according to claim 3, wherein: two side ends of the winding roller (25) protrude out of the die cutting frame (18) and are coaxially provided with winding gears (27), support plates (28) for the rotating shaft (22) to be connected in a rotating mode are vertically arranged at two side ends of the rack (1), and arc-shaped racks (29) meshed with the winding gears (27) are arranged on one end face, close to each other, of the two support plates (28).

5. A lost foam production apparatus according to claim 4, wherein: wind-up roll (25) in cut die carrier (18) inboard coaxial drive gear (30) that is provided with, cut die carrier (18) inside wall horizontal slip be provided with in meshing with drive rack (33) of drive gear (30), two be provided with between drive rack (33) the butt in nickel-chromium heating wire (19) and right nickel-chromium heating wire (19) carry out the decontamination abrasive brick (34) of wiping.

6. A lost foam production apparatus according to claim 5, wherein: decontamination abrasive brick (34) including grind board (35), install in grind board (35) lower extreme and align in each the multiunit of nickel-chromium heating wire (19) grinds group (36), every group grind group (36) and all include two butt side abrasive brick (37) together, with two of organizing the confession has all been seted up to a terminal surface that side abrasive brick (37) are close to each other the mill groove (38) of nickel-chromium heating wire (19) embedding, side abrasive brick (37) in it is equipped with salient point (53) of polishing to grind the protruding in groove (38) inner wall.

7. A lost foam production apparatus according to claim 6, wherein: the side grinding block (37) is provided with arc chamfers (39) at two ends of the grinding groove (38).

8. A lost foam production apparatus according to claim 7, wherein: side abrasive brick (37) rotate connect in wear plate (35) lower extreme, wear plate (35) upper end is provided with the drive side abrasive brick (37) rotate to laminate in clearance cylinder (40) of terminal surface under wear plate (35), ventilative hole (45) have evenly been seted up on wear plate (35), evenly seted up on side abrasive brick (37) communicate in ventilative hole (45) with chip blowing hole (46) of abrasion groove (38), wear plate (35) upper end is provided with the orientation chip blowing fan (44) that ventilative hole (45) bloied.

9. A lost foam production apparatus according to claim 1, wherein: every group centre gripping group (5) all include first clamp splice (9) and second clamp splice (10), first clamp splice (9) are located and keep away from one side of die-cutting frame (18) pivot axle center, second clamp splice (10) are located first clamp splice (9) are close to one side of die-cutting frame (18) pivot axle center, first clamp splice (9) with form centre gripping groove (11) that supply the foam mold core to put into between second clamp splice (10), first clamp splice (9) are kept away from the one end of second clamp splice (10) is provided with and supports tightly and promotes first clamp splice (9) remove to pressure spring (12) of second clamp splice (10) one side, first clamp splice (9) up end is being close to one side of second clamp splice (10) is provided with limiting plate (13) of butt in foam mold core up end.

10. A lost foam production apparatus according to claim 1, wherein: frame (1) one side end is provided with holds workbin (14), frame (1) is kept away from one side end level that holds workbin (14) is provided with blowing platform (15) that supply the foam mold core to place, blowing platform (15) are kept away from the one end level of frame (1) slides and is provided with and promotes the foam mold core extremely push rod (17) in centre gripping groove (11).