CN113634720B

CN113634720B - Sand mold molding equipment

Info

Publication number: CN113634720B
Application number: CN202110801744.3A
Authority: CN
Inventors: 陈英姿
Original assignee: Wenling New Power Machinery Co ltd
Current assignee: Wenling New Power Machinery Co ltd
Priority date: 2021-07-15
Filing date: 2021-07-15
Publication date: 2023-02-14
Anticipated expiration: 2041-07-15
Also published as: CN113634720A

Abstract

The utility model relates to a sand mould molding equipment relates to sand mould molding technical field, including the frame, set up the compacting mechanism in the frame, compacting mechanism's one end is equipped with transport mechanism, and compacting mechanism is equipped with pushing equipment back to one side of transport mechanism, and pushing equipment is including sliding push away the workbin in the frame, set up driving piece one that the drive pushed away the workbin in the frame and slided, and driving piece one is used for the drive to push away the workbin with the sand mould propelling movement of compacting mechanism extrusion to transport mechanism on. This application pushes away the workbin through the setting, utilizes the driving piece to drive and pushes away the workbin and slide in the frame for push away the workbin and promote extrusion's sand mould and carry to transport automatically after on the transport mechanism, realize the automatic handling of sand mould, thereby have the advantage of the transport after the sand mould shaping of being convenient for.

Description

Sand mold molding equipment

Technical Field

The application relates to the technical field of sand mold modeling, in particular to sand mold modeling equipment.

Background

At present, in order to enable the mold to be repeatedly used, the traditional mold is gradually replaced by the sand mold, the shape of the sand mold formed by black sand extrusion is stable, and the mold can be scattered and re-extruded into molds with other shapes after the product is manufactured by the mold.

Related technologies such as a sand mold molding device disclosed in publication No. CN211276456U comprise a molding lower mold, a square ring groove, a semicircular leak hole, a connecting ring plate, an annular cone, an annular inclined body, a circular hole, a through pipe and a material receiving barrel; connect the ring dish card to adorn in the device main part and establish the downside at the molding lower mould, and connect the centre of ring dish to be equipped with annular centrum, annular inclined body establishes in the downside outer end of annular centrum and establishes in the inside bottom side that connects the ring dish, and annular inclined body all is equipped with the round hole with connecing on the ring dish, and inlays in the round hole and has had decurrent siphunculus, connects the storage bucket to clamp in the arc draw-in groove and establish the lower extreme at the siphunculus.

In the above-described related art, the inventors consider that: when moulding, need put into square annular with the molding sand, through the compaction shaping back, artifical manual sand mould with the compaction shaping again takes out for artifical transport sand mould is comparatively troublesome.

Disclosure of Invention

In order to facilitate the carrying of the sand mold, the application aims to provide the sand mold molding equipment.

The application provides a sand mo (u) ld molding equipment adopts following technical scheme:

the utility model provides a sand mould molding equipment, includes the frame, set up in compaction mechanism in the frame, compaction mechanism's one end is equipped with transport mechanism, compaction mechanism is equipped with pushing equipment back to one side of transport mechanism, pushing equipment including slide in push away the workbin in the frame, set up in drive in the frame push away the driving piece that the workbin slided one, driving piece one is used for the drive to push away the workbin with compaction mechanism extrusion's sand mould propelling movement to transport mechanism on.

Through adopting above-mentioned technical scheme, when modelling the black sand, pour the black sand into compacting mechanism in, compacting mechanism is the sand mould with black sand extrusion, starts driving piece one to will push away the workbin and promote towards compacting mechanism, and with extrusion's sand mould propelling movement to transport mechanism on, start transport mechanism again with sand mould automatic transportation. Consequently push away the workbin through setting up, utilize the driving piece to drive and push away the workbin and slide in the frame for push away the workbin and promote extrusion's sand mould to transport automatically after on transport mechanism, realize the automatic handling of sand mould, thereby be convenient for the transport after the sand mould shaping.

Optionally, the compacting mechanism includes a pattern plate fixedly connected to the top of the frame, a pattern box sliding below the pattern plate in the vertical direction, and a second driving member arranged at the bottom of the frame and driving the pattern box to slide towards the pattern plate, and the pattern plate slides into the pattern box to extrude the black sand into a sand mold.

Through adopting above-mentioned technical scheme, when forming the sand mould with black sand extrusion, pour the back into the mold box with black sand, start driving piece two, drive the mold box and slide towards the pattern plate for the pattern plate slides in the mold box after with black sand extrusion formation sand mould, with the scattering that reduces black sand extrusion in-process, improve the concentration of black sand in the mold box, thereby improve the shaping quality of sand mould.

Optionally, the driving part two comprises a first cylinder fixedly connected to the bottom of the frame, a connecting plate fixedly connected to a piston rod of the first cylinder, and a plurality of connecting rods fixedly connected to one side of the connecting plate, which faces away from the first cylinder, and one ends of the connecting rods, which are far away from the connecting plate, are fixedly connected to the bottom wall of the mold box.

Through adopting above-mentioned technical scheme, when the drive mold box slided towards the mold plate, cylinder piston rod extension drove connecting plate and connecting rod and go up the slip, and then drive the mold box and go up the slip for the mold box slides in vertical direction under the drive of cylinder one, so that the mold plate extrudees the black sand in sliding into the mold box.

Optionally, a discharge plate slides in the mold box, a second air cylinder is fixedly connected to the top wall of the connecting plate, a piston rod of the second air cylinder penetrates into the mold box and is fixedly connected with the discharge plate, and the second air cylinder is used for pushing the discharge plate to push the sand mold out of the mold box.

Through adopting above-mentioned technical scheme, when carrying out black sand extrusion, cylinder two and play flitch slide along with the mold box is together gone up to it is tight crowded reality to make play flitch and pattern plate press from both sides black sand clamp. And after the black sand is extruded and formed, the second air cylinder is started to drive the discharging plate to slide upwards so as to push the formed sand mold out of the mold box, and then the material pushing box can push the sand mold on the discharging plate to the conveying mechanism conveniently.

Optionally, the rack is fixedly connected with guide rails located on two sides of the material pushing box, a sliding block sliding on the guide rails is arranged on the material pushing box, and the driving piece I comprises a screw rod penetrating through and in threaded connection with the sliding block and a motor I fixedly connected to the side wall of the rack and driving the screw rod to rotate.

Through adopting above-mentioned technical scheme, when the drive pushes away the workbin with sand mould propelling movement to transport mechanism on, motor one starts, drives the lead screw and rotates, and the lead screw drives the slider and slides towards the mold box along the length direction of guide rail, and then drives and push away the workbin and slide towards the mold box, until pushing away the workbin with the sand mould propelling movement from going out the flitch to transport mechanism on to accomplish that the sand mould breaks away from the mold box automatically, thereby be convenient for push away the workbin and carry out the propelling movement to the sand mould on the flitch.

Optionally, the cross-sectional shape that pushes away the workbin is right angled triangle, it offers the dog-house that supplies black sand to pour into on the workbin to push away, the one end that pushes away the workbin and be close to the mold box articulates on the slider, the one end fixedly connected with fixture block that the mold box was kept away from to the material pushing box, the confession has been seted up to the roof of slider the draw-in groove that the fixture block card was gone into, the mold box is used for the butt the diapire that pushes away the workbin drives and pushes away the workbin rotation for push away the workbin towards the mold box internal slope.

By adopting the technical scheme, when the black sand is poured into the model box, the black sand is firstly conveyed into the feeding port so as to enter the material pushing box. And then, starting a motor I to drive the material pushing box to slide towards the model box until the material pushing box slides to the obliquely upper part of the model box, and starting the air cylinder to drive the model box to slide upwards. Until the mold box is abutted against the inclined bottom wall of the material pushing box, the material pushing box is driven to rotate upwards around the hinged point, so that the clamping block is separated from the clamping groove, and until the material pushing box rotates to incline towards the interior of the mold box, the black sand slides into the mold box along the inclined bottom wall of the material pushing box, and the black sand is automatically poured into the mold box. Then the cylinder drives the model box to slide downwards, so that the model box is separated from the material pushing box, and the material pushing box rotates downwards under the action of gravity to reset. And the first cylinder drives the model box filled with the black sand to slide towards the model plate after the material pushing box is driven by the motor to slide away from the model box, so that the black sand is automatically added into the model box.

Optionally, one end of the sliding block, which is close to the clamping groove, is fixedly connected with a stop block extending downwards, the stop block is used for abutting against a material pushing box which is rotated to the lower side of the guide rail, and a right-angle side of the material pushing box is back to the stop block and abutted against a formed sand mold.

By adopting the technical scheme, after the black sand is completely conveyed into the model box, the first air cylinder is continuously started to drive the model box to continuously move upwards so as to continuously push the material pushing box upwards, so that the material pushing box continuously rotates towards the direction far away from the guide rail until the material pushing box rotates to be buckled in the model box. Then the cylinder drives the model case gliding for the model case breaks away from and pushes away the workbin, then pushes away the workbin and rotates to the below of guide rail and with dog looks butt, so that push away the lateral wall on material case right-angle side and the sand mould butt after the shaping, thereby be convenient for push away the workbin and accomplish down the material back with sand mould propelling movement to transport mechanism under the drive of motor one.

Optionally, the conveying mechanism includes a conveying frame disposed on a side of the model box opposite to the material pushing box, rotating rollers rotatably connected to two ends of the conveying frame, a conveying belt tensioned on the rotating rollers, and a second motor driving one of the rotating rollers to rotate.

Through adopting above-mentioned technical scheme, when propelling movement sand mould to conveyer belt on, the starter motor two drives the live-rollers and rotates to drive the conveyer belt and rotate, in order to carry the sand mould to next station automatically, realize the automatic unloading after the sand mould shaping, thereby be convenient for carry the sand mould after the shaping.

In summary, the present application includes at least one of the following beneficial technical effects:

through the arrangement of the material pushing box, the driving part drives the material pushing box to slide on the rack, so that the material pushing box pushes the extruded sand mold to the conveying mechanism for automatic conveying, the automatic conveying of the sand mold is realized, and the conveying after the sand mold is formed is facilitated;

by arranging the model plate and the model box, the first air cylinder is used for driving the model box to move towards the model plate, and the black sand is extruded and molded to form a sand mold, so that the scattering of the black sand in the extrusion process is reduced, the concentration of the black sand in the model box is improved, and the molding quality of the sand mold is improved;

through the arrangement of the discharging plate, the second air cylinder drives the discharging plate to push the formed sand mold out of the mold box, so that the material pushing box can push the sand mold on the discharging plate to the conveying mechanism conveniently;

the material pushing box is arranged to be right-angled triangle-shaped in cross section, the material pushing box can rotate upwards on the sliding block by utilizing the clamping connection of the clamping block and the clamping groove, and the material pushing box can be driven to incline towards the interior of the model box by the abutting connection of the model box, so that black sand in the material pushing box can be automatically added into the model box;

through setting up the dog, utilize the dog butt in rotating the material pushing box that pushes away to the guide rail below to the lateral wall that makes material pushing box right angle limit and the sand mould butt after the shaping, thereby be convenient for push away the material case and accomplish behind the material pouring with sand mould propelling movement to transport mechanism under the drive of motor one.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

FIG. 2 is a schematic diagram of the structure for showing the inclination of the material pushing box towards the inside of the model box according to the embodiment of the application.

FIG. 3 is a schematic structural diagram for showing that the material pushing box pushes out the sand mold according to the embodiment of the application.

Description of the reference numerals: 1. a frame; 11. a feed inlet; 12. a guide rail; 13. a support post; 2. a compaction mechanism; 21. a mold plate; 22. a driving part II; 221. a first cylinder; 222. a connecting plate; 223. a connecting rod; 23. a model box; 231. a discharge plate; 232. a second air cylinder; 3. a transport mechanism; 31. a transfer frame; 32. a rotating roller; 33. a conveyor belt; 34. a second motor; 4. a material pushing mechanism; 41. pushing the material box; 411. a feeding port; 412. a clamping block; 42. a first driving part; 421. a first motor; 422. a screw rod; 43. a slider; 431. a stopper; 432. a clamping groove.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses sand mo (u) ld molding equipment.

Referring to fig. 1, the sand mold molding equipment comprises a rack 1 and a compaction mechanism 2 installed in the rack 1, a conveying mechanism 3 close to the compaction mechanism 2 is placed at one end of the rack 1, a material pushing mechanism 4 located on one side of the compaction mechanism 2 opposite to the conveying mechanism 3 is further installed in the rack 1, and a feeding hole 11 for feeding black sand is formed in the top wall of the rack 1 so that the black sand conveyed automatically can be conveyed into the material pushing mechanism 4 from the feeding hole 11.

Referring to fig. 1, the compacting mechanism 2 is used for extruding black sand to form a sand mold, the material pushing mechanism 4 is used for conveying the black sand into the compacting mechanism 2, and the sand mold compacted and formed by the compacting mechanism 2 can also be pushed to the conveying mechanism 3 for automatic conveying.

Referring to fig. 1, the conveying mechanism 3 includes a conveying frame 31 disposed at one side of the frame 1, rotating rollers 32 rotatably connected to both ends of the conveying frame 31, a conveying belt 33 tensioned on the rotating rollers 32, and a second motor 34 fixedly connected to the conveying frame 31 for driving one of the rotating rollers 32 to rotate, so that the second motor 34 drives the conveying belt 33 to convey, and the sand molds pushed from the compacting mechanism 2 are automatically conveyed.

Referring to fig. 1, the compacting mechanism 2 includes a pattern plate 21 fixedly connected to the inner top wall of the frame 1, a second driving member 22 mounted on the bottom wall of the frame 1 and located below the pattern plate 21, and a pattern box 23 mounted on the second driving member 22, wherein the pattern box 23 is driven by the second driving member 22 to slide toward or away from the pattern plate 21, so that the pattern plate 21 can slide into the pattern box 23 to squeeze the black sand in the pattern box 23 into a sand mold.

Referring to fig. 1, the driving member two 22 includes a first cylinder 221 fixedly connected to the bottom wall of the frame 1, a connecting plate 222 fixedly connected to a piston rod of the first cylinder 221, and a plurality of connecting rods 223 fixedly connected to one side of the connecting plate 222, which is opposite to the first cylinder 221, the number of the connecting rods 223 in the embodiment of the present application is four, the piston rod of the first cylinder 221 is vertically upward, one end of the connecting rod 223, which is far away from the connecting plate 222, is fixedly connected to the bottom wall of the mold box 23, so as to drive the mold box 23 to lift and fall through the extension and contraction of the piston rod of the first cylinder 221.

Referring to fig. 1 and 2, a discharging plate 231 is connected to the inside of the mold box 23 in a sliding manner along the vertical direction, the discharging plate 231 abuts against the inner wall of the mold box 23 in a sliding manner, a second air cylinder 232 is fixedly connected to the top wall of the connecting plate 222, and a piston rod of the second air cylinder 232 extends vertically upwards and penetrates through the bottom wall of the mold box 23 to be fixedly connected with the discharging plate 231. So that the discharging plate 231 is driven to slide upwards by the second air cylinder 232 to push the extrusion-molded sand mold out of the mold box 23. And when the sand mold is pushed out from the mold box 23, the top wall of the mold box 23 is flush with the discharge plate 231 and the conveyor belt 33, so that the sand mold is pushed onto the conveyor belt 33 by the pushing mechanism 4.

Referring to fig. 1, the material pushing mechanism 4 includes a material pushing box 41 sliding on the frame 1 along the horizontal direction, and a first driving element 42 installed on the frame 1 and driving the material pushing box 41 to slide, a guide rail 12 is fixedly connected on the frame 1 along the horizontal direction, a support 13 located on the back of the conveyor belt 33 to the mold box 23 is fixedly connected on the frame 1, the guide rail 12 extends to the upper side of the conveyor belt 33 and is fixedly connected with the support 13, and the upper end and the lower end of the support 13 are fixed on the frame 1 so as to facilitate the material pushing box 41 to slide to the oblique upper side of the conveyor belt 33 along the guide rail 12.

Referring to fig. 1, a slide 43 is slidably mounted on the guide rail 12 along the longitudinal direction thereof, a stopper 431 extending downward is fixedly connected to one end of the slide 43 away from the mold box 23, and the stopper 431 is slidably abutted against the top walls of the mold box 23 and the discharge plate 231. One end of the material pushing box 41 close to the model box 23 is hinged to one end of the sliding block 43 close to the model box 23, and one end of the material pushing box 41 far away from the model box 23 is clamped on the sliding block 43, so that one end of the material pushing box 41 far away from the model box 23 can rotate upwards and cannot rotate downwards.

Referring to fig. 1 and 2, a feeding port 411 communicated with the feeding port 11 is formed at the top of the material pushing box 41, and the caliber of the feeding port 411 is larger than that of the feeding port 11. The cross section of the material pushing box 41 along the width direction thereof is a right triangle, wherein the side of the material pushing box 41 with the longest length is located at the upper end of the material pushing box 41, the two sides of one end of the material pushing box 41 away from the model box 23 are fixedly connected with the fixture blocks 412, and the top wall of the sliding block 43 is provided with a clamping groove 432 for the fixture blocks 412 to be clamped in.

Referring to fig. 1, the first driving member 42 includes a screw 422 penetrating and screwed into the sliding block 43, and a first motor 421 fixedly connected to the outer side wall of the frame 1 and coaxially connected to the screw 422, so that the screw 422 is driven by the first motor 421 to rotate, and the sliding block 43 drives the material pushing box 41 to slide along the guide rail 12 in a direction approaching to or away from the mold box 23.

Referring to fig. 1 and 2, when the material pushing box 41 slides to the obliquely upper side of the mold box 23, the mold box 23 moves upward and abuts against the bottom wall of the material pushing box 41, and then the material pushing box 41 is driven to rotate upward around the hinge point with the sliding block 43, so that the clamping block 412 is separated from the clamping groove 432. And after the material pushing box 41 rotates to incline towards the interior of the model box 23, automatically pouring the black sand in the material pushing box 41 into the model box 23 so as to realize the automatic pouring of the black sand into the model box 23. Or after the mold box 23 slides downwards, the material pushing box 41 rotates downwards under the gravity to reset, the clamping block 412 is clamped into the clamping groove 432 again, then the first motor 421 drives the material pushing box 41 to slide below the material inlet 11 again, so that the black sand is rotated into the material pushing box 41 again, and then the first motor 421 drives the material pushing box 41 to slide towards the mold box 23 again, so that the black sand is added into the mold box 23 again.

Referring to fig. 1 and 3, when the amount of black sand in the mold box 23 is enough, the first driving cylinder 221 is continuously driven to continuously slide the mold box 23 filled with the black sand upwards, so that the material pushing box 41 is pushed by the mold box 23 to continuously rotate upwards until the material pushing box 41 rotates to one side of the slide block 43 close to the mold box 23, and the material pushing box 41 rotates towards the mold box 23 under the action of gravity, so that one side of the material pushing box 41 with the longest length is abutted to the inner wall of the upper end of the mold box 23. Then, the first air cylinder 221 drives the mold box 23 to slide downwards, so that the mold box 23 is separated from the material pushing box 41, the material pushing box 41 rotates to the position below the guide rail 12 and close to the stop block 431 under the action of gravity, and the height of the upper end of the bottom wall of the material pushing box 41 is higher than that of the bottom wall of the stop block 431. So that when the mold box 23, the discharging plate 231, the bottom wall of the block 431 and the conveyor belt 33 are flush, the first motor 421 drives the sliding block 43 to slide towards the mold box 23 to drive the block 431 and the material pushing box 41 to slide towards the mold box 23 together, so that the inclined bottom wall of the material pushing box 41 is in sliding contact with the mold box 23. And then the material pushing box 41 is abutted by the mold box 23 and then rotates towards the stop block 431 until the material pushing box 41 is abutted to the stop block 431, the right-angle side of the material pushing box 41 is in a vertical state and is abutted to the sand mold on the discharging plate 231, so that the material pushing box 41 pushes the sand mold to the conveying belt 33 under the driving of the motor I421, and the formed sand mold is automatically conveyed to the conveying belt 33.

The embodiment of the application provides a sand mo (u) ld molding equipment's implementation principle does: when the black sand is molded, the black sand is automatically conveyed into the feeding hole 11, so that the black sand is fed into the material pushing box 41 from the feeding hole 411, and then the first motor 421 is started to drive the sliding block 43 and the material pushing box 41 to slide towards the inside of the mold box 23. Until the material pushing box 41 slides to the obliquely upper part of the model box 23, the first air cylinder 221 is started to drive the model box 23 to slide upwards and push the material pushing box 41 to rotate upwards to incline, so that the material pushing box 41 inclines towards the interior of the model box 23, and black sand is poured into the model box 23. Then, the first cylinder 221 pushes the mold box 23 upward again, so that the inclined pushing box 41 rotates toward the mold box 23, and the pushing box 41 rotates into the mold box 23 and abuts against the inner wall of the mold box 23. The first cylinder 221 drives the model box 23 to slide downwards, so that the model box 23 is separated from the material pushing box 41, and the material pushing box 41 rotates towards the stop 431.

Then the first motor 421 drives the material pushing box 41 and the slide block 43 to slide away from the upward sliding path of the mold box 23, and the first cylinder 221 drives the mold box 23 to slide towards the mold plate 21, so that the mold plate 21 slides into the mold box 23 to extrude the black sand into a sand mold. The first air cylinder 221 drives the mold box 23 to slide down to be flush with the bottom wall of the stop block 431 and the conveyor belt 33, and the second air cylinder 232 is started to drive the discharging plate 231 to slide up to push the formed sand mold out of the mold box 23 until the upper surface of the discharging plate 231 is flush with the top wall of the mold box 23, the bottom wall of the stop block 431 and the conveyor belt 33. Then a starting motor 421 drives the material pushing box 41 to slide towards the model box 23, so that the material pushing box 41 is abutted to the model box 23 and then rotates towards the stop block 431 and is abutted to the stop block 431, the right-angle side of the material pushing box 41 is vertical, the vertical right-angle side of the material pushing box 41 is abutted to a sand mold and then pushes the sand mold to the conveyor belt 33, automatic conveying of the sand mold is achieved, and conveying after the sand mold is formed is facilitated.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above 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 sand mould molding equipment which characterized in that: the sand mold pushing device comprises a rack (1) and a compacting mechanism (2) arranged on the rack (1), wherein one end of the compacting mechanism (2) is provided with a conveying mechanism (3), one side of the compacting mechanism (2), which is back to the conveying mechanism (3), is provided with a material pushing mechanism (4), the material pushing mechanism (4) comprises a material pushing box (41) sliding on the rack (1) and a driving part I (42) arranged on the rack (1) and used for driving the material pushing box (41) to push a sand mold extruded by the compacting mechanism (2) to the conveying mechanism (3);

the compaction mechanism (2) comprises a model plate (21) fixedly connected to the top of the frame (1), a model box (23) sliding below the model plate (21) along the vertical direction, and a driving part II (22) arranged at the bottom of the frame (1) and driving the model box (23) to slide towards the model plate (21), wherein the model plate (21) slides into the model box (23) to extrude the black sand into a sand mold;

the driving part II (22) comprises a cylinder I (221) fixedly connected to the bottom of the rack (1), a connecting plate (222) fixedly connected to a piston rod of the cylinder I (221), and a plurality of connecting rods (223) fixedly connected to one side, back to the cylinder I (221), of the connecting plate (222), wherein one ends, far away from the connecting plate (222), of the connecting rods (223) are fixedly connected to the bottom wall of the model box (23);

the rack (1) is fixedly connected with guide rails (12) positioned at two sides of a material pushing box (41), a sliding block (43) sliding on the guide rails (12) is arranged on the material pushing box (41), and the driving part I (42) comprises a screw rod (422) penetrating through and in threaded connection with the sliding block (43) and a motor I (421) fixedly connected to the side wall of the rack (1) and driving the screw rod (422) to rotate;

the cross-sectional shape of the material pushing box (41) is a right-angled triangle, a feeding port (411) for pouring black sand is formed in the material pushing box (41), one end, close to the model box (23), of the material pushing box (41) is hinged to the sliding block (43), one end, far away from the model box (23), of the material pushing box (41) is fixedly connected with a clamping block (412), a clamping groove (432) for clamping the clamping block (412) is formed in the top wall of the sliding block (43), and the model box (23) is used for being abutted to the bottom wall of the material pushing box (41) to drive the material pushing box (41) to rotate, so that the material pushing box (41) inclines towards the interior of the model box (23);

one end fixedly connected with dog (431) of downwardly extending that slider (43) is close to draw-in groove (432), dog (431) are used for with rotate push away workbin (41) looks butt below guide rail (12), push away workbin (41) right-angle side back to dog (431) and with the sand mould looks butt after the shaping.

2. The sand mold molding apparatus according to claim 1, wherein: a discharge plate (231) slides in the mold box (23), a second air cylinder (232) is fixedly connected to the top wall of the connecting plate (222), a piston rod of the second air cylinder (232) penetrates into the mold box (23) and is fixedly connected with the discharge plate (231), and the second air cylinder (232) is used for pushing the discharge plate (231) to push out the sand mold from the mold box (23).

3. The sand mold molding apparatus according to claim 1, wherein: the conveying mechanism (3) comprises a conveying frame (31) arranged on one side, back to the material pushing box (41), of the model box (23), rotating rollers (32) rotatably connected to two ends of the conveying frame (31), a conveying belt (33) tensioned on the rotating rollers (32), and a second motor (34) driving one of the rotating rollers (32) to rotate.