CN210996345U - Mould transfer device for molding machine - Google Patents

Abstract

The utility model relates to the technical field of molding machines, in particular to a mold transfer device for a molding machine, which comprises a lifting frame arranged on one side of a machine base, wherein one side of the machine base, which is far away from the lifting frame, is provided with a first hydraulic cylinder for pushing out a mold; the lifting frame is connected with a bearing platform used for bearing a mold in a sliding mode along the vertical direction, the top surface of the lifting frame is provided with a third hydraulic cylinder used for driving the bearing platform to move vertically, one side of the lifting frame is connected with a lead-out rail used for conducting the lead-out mold, the extension limit of a piston rod of the third hydraulic cylinder is set to push the bearing platform to the lower end of the lifting frame and butt joint with the lead-out rail, and a conveying mechanism is arranged on the lead-out rail; and a second hydraulic cylinder for pushing out the die is arranged on one side of the lifting frame, which is far away from the guide-out track. The utility model discloses have through the transfer device with the mould from the base workstation adversion under, improve the effect of transporting mould efficiency.

Description

Mould transfer device for molding machine

Technical Field

The utility model belongs to the technical field of the technique of molding machine and specifically relates to a mould transfer device for molding machine is related to.

Background

Molding machines are casting machines used to manufacture sand molds. Its main functions are: filling sand, namely filling loose molding sand into a sand box; compacting the molding sand, namely compacting the loose molding sand in the sand box by different methods such as jolt ramming, compaction, jolt ramming, injection pressing and the like, so that the sand mould has necessary strength in the processes of carrying, pouring and the like; and (4) stripping, namely taking out the mold from the compacted sand mold by using different mechanisms.

Chinese patent publication No. CN108290209A discloses a mold molding machine for molding a mold using a mold box and a mold plate which are carried in, the mold molding machine including: a storage box having a lower opening connectable to the upper opening of the molding box and an open side; a presser head mechanism having a presser plate that can be moved in and out of the storage box, and a plurality of presser feet that penetrate the presser plate and can be raised and lowered relative to the presser plate; a sand filling hopper having at least one sand filling port for filling molding sand into a molding space formed by the molding box, the holding box, the ram mechanism, and the pattern plate; and a sand filling nozzle which is formed on a member detachably attached to an opening of a side portion of the storage box and can communicate the sand filling port with the molding space.

The above prior art solutions have the following drawbacks: need transport the mould from the molding machine through the manual work down, transport inefficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a mould transfer device for molding machine has through transfer device with the mould from the base workstation adversion under, improves the effect of transporting mould efficiency.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:

the utility model provides a mould transfer device for molding machine which characterized in that: the die casting machine comprises a lifting frame arranged on one side of a machine base, wherein a first hydraulic cylinder for pushing out a die is arranged on one side, far away from the lifting frame, in the machine base;

the lifting frame is connected with a bearing platform in a sliding mode along the vertical direction, a hydraulic cylinder III for driving the bearing platform to move vertically is arranged on the top face of the lifting frame, a guide-out track for guiding out a die is connected to one side of the lifting frame, the extension limit of a piston rod of the hydraulic cylinder III is set to enable the bearing platform to be pushed to the lower end of the lifting frame and to be in butt joint with the guide-out track, and a conveying mechanism is arranged on the guide-out track;

and a second hydraulic cylinder for pushing out the die is arranged on one side of the lifting frame, which is far away from the guide-out track.

Through adopting above-mentioned technical scheme, after the die mould of completion mould, operating personnel drives hydraulic cylinder one and releases the mould from the frame towards the crane, thereby make the mould fall to on the plummer, and then drive hydraulic cylinder three pushes the plummer downwards, thereby make the plummer with derive the track butt joint, drive hydraulic cylinder two, thereby release the mould from the plummer in, operating personnel can use fork truck to transfer the mould of die mould completion to the assigned position, thereby realize with the mould from the frame under stable the transporting, improve the transportation efficiency of mould.

The utility model discloses further set up to: the bearing surface of the bearing platform is provided with a conveying track, and the conveying track is in butt joint with the guide track when the bearing platform is positioned at the bottom end of the lifting frame.

Through adopting above-mentioned technical scheme, operating personnel drives hydraulic cylinder I and releases the mould from the frame to on pushing away the mould to the delivery track, and then drive hydraulic cylinder three with the downward propelling movement of plummer, make the delivery track with derive the track butt joint, and then drive hydraulic cylinder two orientation and derive the track and release the mould, the butt joint is stabilized to the transfer process mould stroke, is favorable to improving the transportation efficiency of mould.

The utility model discloses further set up to: the conveying track comprises two fixed tracks II which are arranged on the bearing surface of the bearing table in parallel, and two rows of rollers II are respectively and rotatably connected to the back surfaces of the two fixed tracks II along the length direction.

By adopting the technical scheme, an operator drives the first hydraulic cylinder to push the mold to the position between the two second fixed rails from the machine base, so that the mold slides on the two rows of rollers, the rollers reduce friction in the process of pushing the mold to the first fixed rails from the second fixed rails, the resistance in the process of pushing the mold is reduced, and the mold pushing efficiency is improved.

The utility model discloses further set up to: the second fixed rail is provided with a through groove along the length direction, a plurality of chain wheels fixedly connected with the second idler wheel are arranged in the through groove along the length direction of the second fixed rail, the chain wheels are collinear with the rotation center of the second idler wheel, the chain wheels are in transmission connection with a chain, and the second fixed rail is provided with a driving motor for driving the second idler wheel to rotate.

Through adopting above-mentioned technical scheme, operating personnel drive hydraulic cylinder one with mould propelling movement to fixed track two on, the mould slides on two gyro wheels are two, drive hydraulic cylinder three pushes down the plummer and with fixed track one with two butt joints of fixed track, drive hydraulic cylinder two release mould start driving motor simultaneously, thereby driving motor and driving the sprocket and rotate and make whole row of gyro wheel two rotate, thereby make gyro wheel two and the cooperation of pneumatic cylinder two transport the mould, be favorable to improving the stability and the transport efficiency of transporting the mould.

The utility model discloses further set up to: two are listed as the bearing frame has been placed on the gyro wheel two, bear the frame and include a plurality of bracing pieces and a plurality of carrier bar, it is a plurality of the bracing piece is on two gyro wheels two that are on a parallel with fixed track two and wherein two bracing pieces slide respectively, and is a plurality of the carrier bar is fixed on the lateral wall that the gyro wheel two was kept away from to the bracing piece along the length direction of bracing piece.

Through adopting above-mentioned technical scheme, accomplish the moulding-die back in the frame, operating personnel will bear the frame and place on two gyro wheels two, start driving motor drives gyro wheel two and rotate, thereby will bear the frame and transfer to the position with the mould butt joint, pass through pneumatic cylinder a propelling movement to bearing the frame with the mould, and then drive pneumatic cylinder three and pneumatic cylinder two with the mould finally transport on deriving the track, bear the frame and be favorable to avoiding the mould direct with the plummer, gyro wheel one, gyro wheel two and fork truck contact, reduce the wearing and tearing of mould in the transportation, the bracing piece erects the take carrier bar take the altitude, make things convenient for operating personnel to insert fork truck the carrier bar below and will bear frame and mould transportation down and derive the track, be favorable to improving the efficiency that the mould transported.

The utility model discloses further set up to: and limiting plates are respectively arranged on the opposite side walls of the two bearing rods close to the two ends of the supporting rod.

Through adopting above-mentioned technical scheme, when operating personnel drive hydraulic cylinder one with mould propelling movement to bear the frame on, the limiting plate keeps off both ends around the mould, is transporting the mould and bears the play that the in-process limiting plate is favorable to the restriction mould, improves the stability of transportation process.

The utility model discloses further set up to: the roof of trapped orbit two is close to the plectrum switch that derives orbital one end and is provided with control driving motor, bear the weight of when placing gyro wheel two the plectrum of plectrum switch and the diapire of bracing piece inconsistent, the roof of trapped orbit two is close to the one end of pneumatic cylinder two and is provided with the orientation and derives orbital stop key, keeps away from derive orbital limiting plate collision stop key and stop driving motor.

Through adopting above-mentioned technical scheme, operating personnel will bear the frame and place on two gyro wheels two and promote towards the direction of pneumatic cylinder two, the bracing piece and then stir the plectrum of two plectrum switches from closed position to the starting position, and then start two driving motor, thereby drive two gyro wheel two rolls and drive and bear the frame and continue to carry towards the direction of pneumatic cylinder two, when bearing the limiting plate collision stop key on the frame, stop key stop driving motor, bear the frame and be in the position with the workstation butt joint, when bearing the frame and bear behind the mould and two to derive the track by the pneumatic cylinder and release, the bracing piece dials back closed position with the plectrum of two plectrum switches again, in order to place next and bear the frame and use, be favorable to automatic opening and stop driving motor and carry the crane in, alleviate operating personnel's working strength, improve the efficiency of.

The utility model discloses further set up to: the guide track comprises two first fixed tracks which are arranged at the bottom end of the lifting frame in parallel, the conveying mechanism comprises a plurality of first rollers, and the first rollers are respectively rotatably connected to the opposite surfaces of the first fixed tracks along the length direction of the first fixed tracks.

Through adopting above-mentioned technical scheme, when operating personnel drive pneumatic cylinder two and release the mould from the plummer, the mould removes to two fixed rails one and slides on two rows of gyro wheels one, and the friction of mould release in-process is reduced to gyro wheel one, reduces the resistance of releasing the mould process, is favorable to improving the efficiency that the mould was released.

To sum up, the utility model discloses a beneficial technological effect does:

1. an operator drives the first hydraulic cylinder, the third hydraulic cylinder and the second hydraulic cylinder to sequentially and orderly transfer the die out of the base, and the die which is molded is transferred to a specified position by using a forklift, so that the die is stably transferred from the base, and the transfer efficiency of the die is improved;

2. in the process of transferring the mold, the mold is placed on the bearing frame, so that the mold is prevented from being directly contacted with the bearing table, the first roller, the second roller and the forklift, the abrasion of the mold in the transferring process is reduced, the bearing rod is erected by the support rod to a certain height, an operator can conveniently insert the forklift below the bearing rod and transfer the bearing frame and the mold to the lower guide rail, and the efficiency of transferring the mold is improved;

3. the bracing piece is stirred plectrum switch and is started two gyro wheel two and roll, and two gyro wheel two are carried and are born the frame and stop the driving motor until limiting plate collision stop key, and when bearing the frame and release by second pneumatic cylinder, the bracing piece is stirred the plectrum switch back and is closed the position again to supply to place the next and bear the frame and use, be favorable to opening automatically and stop driving motor and carry and bear the frame to the crane in, alleviate operating personnel's working strength, improve the efficiency of transporting the mould.

Drawings

Fig. 1 is a schematic structural diagram of the transfer device and the machine base in this embodiment.

Fig. 2 is a partial view of the structure of the carrier table and the carrier frame when the mold is in the base in the embodiment.

Fig. 3 is a partial view of the structure of the transfer device in this embodiment for embodying the absence of a carrier.

Fig. 4 is a partial sectional view of the structure for embodying the sprocket and the chain in the present embodiment.

In the figure, 1, a machine base; 11. a work table; 12. a protection chamber; 13. discharging the mold; 14. operating stations; 2. a first hydraulic cylinder; 3. a lifting frame; 4. a bearing table; 41. a guide wheel; 42. a limiting block; 43. a guide plate; 5. exporting the track; 51. a conveying mechanism; 511. a first roller; 52. fixing a first rail; 53. a first supporting seat; 6. a second hydraulic cylinder; 61. a fixed seat; 7. a hydraulic cylinder III; 8. a conveying track; 81. a second fixed track; 811. a through groove; 82. a second roller; 83. a sprocket; 84. a chain; 85. a drive motor; 86. a second supporting seat; 87. a paddle switch; 88. a stop key; 9. a carrier; 91. a support bar; 92. a carrier bar; 93. a limiting plate; 10. a forklift is provided.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1 and 2, a mold transfer device for a molding machine disclosed by the present invention comprises a lifting frame 3 disposed at one side of a mold outlet 13 of a machine base 1, a hydraulic cylinder one 2 is fixed at one side of the machine base 1 away from the mold outlet 13, a piston rod of the hydraulic cylinder one 2 faces the mold outlet 13, a bearing platform 4 is connected to the lifting frame 3 in a sliding manner along a vertical direction, the bearing platform 4 is a frame structure with an opening except upper and lower surfaces, a guide wheel 41 rolling along the lifting frame 3 is disposed on a surface of the bearing platform 4, which is attached to the lifting frame 3, a hydraulic cylinder three 7 is fixed on a top surface of the lifting frame 3, the piston rod of the hydraulic cylinder three 7 is fixedly connected to an upper top surface of the bearing platform 4, a leading-out rail 5 is connected to the bottom of one side of the lifting frame 3 facing an operation station 14 of the machine base 1, a conveying mechanism 51 for conducting molds is disposed on the leading-out rail, the fixed seat 61 is fixed on the lifting surface, the second hydraulic cylinder 6 is fixed on the top surface of the fixed seat 61, and a piston rod of the second hydraulic cylinder 6 faces the guide-out track 5; after the die is pressed on the workbench 11 of the base 1, an operator drives the hydraulic cylinder I2 to push the die out of the base 1 towards the lifting frame 3, the die is pushed to the bearing table 4, the hydraulic cylinder III 7 is started to push the bearing table 4 downwards along the lifting frame 3, and the guide wheel 41 plays a role in guiding and stabilizing in the downward moving process of the bearing table 4; when plummer 4 moves down and when deriving 5 butt joint positions on the track, operating personnel drives two 6 hydraulic cylinders to release the mould from plummer 4 in, operating personnel uses fork truck 10 to transfer the mould of transporting to depositing the position, thereby realizes transporting the mould from frame 1 in the stability down, improves the transportation efficiency of mould.

Referring to fig. 3, a conveying rail 8 is fixedly arranged on the bearing surface of the bearing table 4, the conveying rail 8 comprises two mutually parallel fixed rails two 81, the two fixed rails two 81 are of a frame structure with a through groove 811 along the length direction, the two fixed rails two 81 are fixed on the bearing surface of the bearing table 4 through a supporting seat two 86, and the back surfaces of the two fixed rails two 81 are respectively and rotatably connected with a row of rollers two 82 along the length direction; an operator drives the first hydraulic cylinder 2 to push the mold out of the machine base 1, so that the mold is pushed to a position between the two second fixed rails 81 and slides on the two rows of rollers 82, the third hydraulic cylinder 7 is driven to push the bearing table 4 downwards, the second fixed rails 81 are in butt joint with the guide rails 5, the second hydraulic cylinder 6 is driven to push the mold out of the guide rails 5, the mold stroke is stably in butt joint in the transferring process, the rollers 82 reduce friction in the process of pushing the mold out of the second fixed rails 81 to the guide rails 5, resistance in the process of pushing the mold out is reduced, and mold pushing efficiency is improved.

Referring to fig. 3 and 4, a plurality of chain wheels 83 are arranged in the through groove 811 along the length direction of the second fixed rail 81, the single chain wheel 83 is fixedly connected with the single second roller 82, the chain wheels 83 are collinear with the rotation center of the second roller 82, the chain wheels 83 are in transmission connection with a chain 84, and a driving motor 85 with an output end connected with the rotation center of the chain wheels 83 is respectively arranged on the opposite surfaces of the two second fixed rails 81; an operator drives the first hydraulic cylinder 2 to push the mold to the second fixed rail 81, the mold slides on the two rows of rollers 82, the third driving hydraulic cylinder 7 pushes the bearing platform 4 down and butt the second fixed rail 81 with the guide rail 5, the second driving hydraulic cylinder 6 pushes the mold and simultaneously starts the driving motor 85, the driving motor 85 drives the single chain wheel 83 to rotate, so that the second whole row of rollers 82 rotates, the second rollers 82 and the second hydraulic cylinder 6 are matched to transfer the mold, and the improvement of the stability and the transfer efficiency of the transfer mold is facilitated.

Referring to fig. 1 and 2, after a single mold is molded, before an operator drives a hydraulic cylinder two 6 to push a mold onto a bearing table 4, a bearing frame 9 is placed on two rows of rollers two 82, the bearing frame 9 comprises a plurality of supporting rods 91 and a plurality of bearing rods 92, the supporting rods 91 and the bearing rods 92 are respectively rectangular rod pieces, the supporting rods 91 are parallel to a fixed rail two 81, two supporting rods 91 respectively slide on the two rows of rollers two 82, the bearing rods 92 are vertically fixed on the top surfaces of the supporting rods 91 and are uniformly arranged along the length direction of the supporting rods 91, the working table 11 is flush with the top surfaces of the bearing rods 92, a guide plate 43 for guiding out the mold is arranged between the working table 11 and the bearing rods 92, and a limiting plate 93 is respectively fixed on the opposite side walls of the two bearing rods 92 positioned at the two ends of the supporting rods 91; an operator starts the driving motor 85 to drive the second roller 82 to rotate, so that the bearing frame 9 is transferred to a position butted with a mold, the mold is pushed to the bearing frame 9 through the first hydraulic cylinder 2, the limiting plates 93 are blocked at the front end and the rear end of the mold, the limiting plates 93 are favorable for limiting the movement of the mold in the process of transferring the mold and the bearing frame 9, the stability of the transferring process is improved, the third hydraulic cylinder 7 is further driven to push down the bearing frame 9 and enable the second fixed rail 81 to be butted with the derivation rail 5, the second hydraulic cylinder 6 is driven to transfer the mold to the derivation rail 5, the bearing frame 9 is favorable for avoiding the direct contact of the mold with the bearing table 4, the second roller 82, the derivation rail 5 and the forklift 10 during the transferring process, the abrasion of the mold in the transferring process is reduced, the supporting rod 91 supports the bearing rod 92 to a certain height, the operator can conveniently insert the forklift 10 below the, the efficiency of mould transportation is favorable to improving.

Referring to fig. 2 and 3, a toggle switch 87 connected with the driving motor 85 is fixed on the top wall of the second fixed rail 81, the toggle switch 87 is located at one end of the second fixed rail 81 close to the leading-out rail 5, a toggle of the toggle switch 87 is made of hard elastic rubber material, a stop key 88 facing the leading-out rail 5 is fixed at the other end of the top wall of the second fixed rail 81, and the stop key 88 is connected with the driving motor 85; when an operator places the bearing frame 9 on the second roller 82, the plectrum of the plectrum switch 87 is abutted against the bottom wall of the support rod 91, after the bearing frame 9 is slightly pushed, the support rod 91 further stirs the plectrum of the two plectrum switches 87 from the closed position to the start position, and then the two drive motors 85 are started, so that the two rows of rollers 82 are driven to roll and drive the bearing frame 9 to continue to convey towards the direction of the second hydraulic cylinder 6, when the limit plate 93 on the bearing frame 9 collides with the stop key 88, the stop key 88 stops the drive motors 85, the bearing frame 9 moves to the position butted with the workbench 11, the first hydraulic cylinder 2 is driven to push the mold onto the bearing frame 9, the third hydraulic cylinder 7 is driven to push down the bearing table 4, and further drive the second hydraulic cylinder 6 to push out towards the guide rail 5, the support rod 91 pulls the plectrum of the two plectrum switches 87 back to the closed position, when the next bearing frame, the automatic start-stop driving motor 85 is favorable for conveying the bearing frame 9 into the lifting frame 3, the working strength of operators is reduced, and the efficiency of transferring the die is improved.

Referring to fig. 3, the guiding-out rail 5 comprises two first fixed rails 52 arranged at the bottom end of the lifting frame 3 in parallel, the two first fixed rails 52 are in butt joint with a second fixed rail 81 descending to the bottom of the lifting frame 3, the conveying mechanism 51 comprises a plurality of rollers 511 arranged along the length direction of the first fixed rails 52, the rollers 511 are respectively and rotatably connected to opposite surfaces of the two first fixed rails 52, and when the first fixed rails 52 are in butt joint with the second fixed rails 81, the two first fixed rails 511 and the two second fixed rails 82 are in collinear butt joint; when the operator drives the hydraulic cylinder II 6 to push the bearing frame 9 together with the mold out of the bearing table 4, the bearing frame 9 moves from the two rows of rollers II 82 to the two fixed rails I52 and slides on the two rows of rollers I511, the rollers I511 reduce friction in the process of pushing the bearing frame 9 out, reduce resistance in the process of pushing out the mold, and are beneficial to improving the mold pushing efficiency.

The implementation principle of the embodiment is as follows: an operator operates the molding machine to press a mold on the workbench 11, the bearing frame 9 is placed on the two rows of rollers 82, the supporting rod 91 pulls the plectrum switch 87 to start the driving motor 85 to drive the rollers 82 to move the bearing frame 9 to be in butt joint with the mold outlet 13, the hydraulic cylinder I2 is driven to push the mold out of the machine base 1 towards the bearing frame 9, after the mold is pushed to the bearing frame 9, the hydraulic cylinder III 7 is started to push the bearing frame 4 downwards along the vertical direction of the lifting frame 3, when the two fixed rails II 81 move downwards to be in butt joint with the two fixed rails I52, the operator drives the hydraulic cylinder II 6 to push the bearing frame 9 out of the bearing frame 4, the supporting rod 9 pulls the plectrum of the plectrum switch 87 back to the original position, the bearing frame 9 slides out along the two rows of rollers 511 to carry the mold, the operator transfers the bearing frame 9 and the mold to a storage position by using the forklift, realize with the mould from the frame 1 stable transport down, improve the transportation efficiency of mould.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims (8)

1. The utility model provides a mould transfer device for molding machine which characterized in that: the die-casting machine comprises a lifting frame (3) arranged on one side of a machine base (1), wherein a hydraulic cylinder I (2) used for pushing out a die is arranged on one side, far away from the lifting frame (3), in the machine base (1);

the lifting frame (3) is connected with a bearing platform (4) in a sliding mode along the vertical direction, a hydraulic cylinder III (7) used for driving the bearing platform (4) to move vertically is arranged on the top surface of the lifting frame (3), a guide-out track (5) used for guiding out a die is connected to one side of the lifting frame (3), the extension limit of a piston rod of the hydraulic cylinder III (7) is set to push the bearing platform (4) to the lower end of the lifting frame (3) and butt joint with the guide-out track (5), and a conveying mechanism (51) is arranged on the guide-out track (5);

and a second hydraulic cylinder (6) for pushing out the die is arranged on one side of the lifting frame (3) far away from the guide-out track (5).

2. The mold transfer device for molding machine according to claim 1, characterized in that: be provided with delivery track (8) on the loading face of plummer (4), delivery track (8) and derivation track (5) butt joint when plummer (4) is in crane (3) bottom.

3. The mold transfer device for molding machine according to claim 2, characterized in that: the conveying track (8) comprises two fixed tracks (81) which are arranged on the bearing surface of the bearing table (4) in parallel, and a row of two rollers (82) are respectively and rotatably connected to the back surfaces of the two fixed tracks (81) along the length direction.

4. The mold transfer device for molding machine according to claim 3, characterized in that: the fixed track II (81) is provided with a through groove (811) along the length direction, a plurality of chain wheels (83) fixedly connected with the roller II (82) are arranged in the through groove (811) along the length direction of the fixed track II (81), the chain wheels (83) are collinear with the rotation center of the roller II (82), the chain wheels (83) are in transmission connection with a chain (84), and a driving motor (85) used for driving the roller II (82) to rotate is arranged on the fixed track II (81).

5. The mold transfer device for molding machine according to claim 4, characterized in that: two are listed having placed on gyro wheel two (82) and having born frame (9), bear frame (9) and include a plurality of bracing pieces (91) and a plurality of carrier bar (92), a plurality of bracing piece (91) are on a parallel with two (81) fixed rails and wherein two bracing pieces (91) slide respectively on two gyro wheels two (82), and a plurality of carrier bar (92) are fixed on the lateral wall that gyro wheel two (82) are kept away from in bracing piece (91) along the length direction of bracing piece (91).

6. The mold transfer device for molding machine according to claim 5, characterized in that: and limiting plates (93) are respectively arranged on the opposite side walls of the two bearing rods (92) close to the two ends of the supporting rod (91).

7. The mold transfer device for molding machine according to claim 6, characterized in that: the one end that the roof of trapped orbit two (81) is close to deriving track (5) is provided with plectrum switch (87) of control driving motor (85), bear frame (9) when placing on gyro wheel two (82) plectrum switch (87) the plectrum inconsistent with the diapire of bracing piece (91), the one end that the roof of trapped orbit two (81) is close to pneumatic cylinder two (6) is provided with towards deriving stop key (88) of track (5), keeps away from limiting plate (93) collision stop key (88) of deriving track (5) stops driving motor (85).

8. The mold transfer device for molding machine according to claim 1, characterized in that: the guide-out track (5) comprises two first fixed tracks (52) which are arranged at the bottom end of the lifting frame (3) in parallel, the conveying mechanism (51) comprises a plurality of first rollers (511), and the first rollers (511) are respectively and rotatably connected to the opposite surfaces of the first fixed tracks (52) along the length direction of the first fixed tracks (52).

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