Sand applying member and sand printer

Abstract

The application relates to the field of sand printing, in particular to a sand feeding part and a sand printing machine, which comprise: a machine box, N sliding positions in a rectangular array are vertically arranged in the machine box, and a position giving slot corresponding to one sliding position is formed in the upper side of the machine box; N-1 sand boxes are arranged on the N sliding positions and can move relative to each other; wherein a sand pushing plate is arranged at the bottom of each sand box and used for pushing the sand in the sand box out of the upper side of the sand box. The application has the effect of improving the sand feeding efficiency when a single sample is printed by using multiple types of sand, thereby improving the printing efficiency of the sample.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of sand printing, in particular to a sand feeding part and a sand printing machine. BACKGROUND

[0002] Sand printing is a kind of 3D printing technology. A sand printing machine is a machine that stacks sand layer by layer and sprays resin (such as cold forming furan resin, phenolic resin, etc.) through a spray nozzle according to the shape of the cross section of a part, so as to bond the sand together and print a very complex and precise model. It can greatly improve automation and precision, greatly shorten the process cycle, and reduce manufacturing cost.

[0003] The sand printing machine can print different types of products according to different types of sand. However, the inventor found that when it is used to print rock samples, different types of sand are needed for printing because the actual rock has different characteristics in different layers.

[0004] However, the current sand printing machine can only be used for one type of sand. When different types of sand are needed for printing, the machine needs to be stopped, the sand in the sand bed needs to be removed, and then a new type of sand needs to be replaced and the machine needs to be restarted for printing. This operation is extremely troublesome for single sample forming that needs to be printed with multiple types of sand, and seriously restricts the printing efficiency of the sample. SUMMARY

[0005] In order to improve the sand feeding efficiency of single sample printing with multiple types of sand and improve the printing efficiency of the sample, the present application provides a sand feeding part and a sand printing machine.

[0006] In a first aspect, the present application provides a sand feeding part, which adopts the following technical solution:

[0007] A sand feeding part comprises:

[0008] A cabinet, a vertical N number of sliding positions in a rectangular array are arranged in the cabinet, and a slot corresponding to one sliding position is arranged on the upper side of the cabinet;

[0009] N-1 sandboxes are arranged on the N sliding positions and can move along the N sliding positions;

[0010] Each of the sandboxes is provided with a sand pushing plate at the bottom, which is used to push the sand in the sandboxes out of the upper side of the sandboxes.

[0011] By adopting the technical scheme, the N sliding positions in the rectangular array are arranged in the case, and N-1 sandboxes capable of sliding between the sliding positions are arranged, so that the sandboxes can slide along the sliding positions, the positions of the sandboxes can be replaced, any sandbox can be located at the sliding position corresponding to the accommodation slot, the sandboxes can be fed through the accommodation slot, different sand can be stored in different sandboxes, different sand can be fed by moving the sandboxes, when the required sandbox is moved to the position of the accommodation slot, the sand in the sandbox can be pushed out to the upper side of the case by upward movement of the sand pushing plate, after the sand in the sandbox is used, the sandbox is moved again, another sandbox is moved to the position of the accommodation slot, and sand feeding operation is performed again, so that the sand feeding efficiency of a single sample for different sand can be improved without stopping the machine or taking out and replacing the sand, the printing efficiency of the sand mold is improved.

[0012] Optionally, a sliding frame is rotatably arranged on one side of the sandbox, and the sliding frame is movably arranged between the sliding positions.

[0013] Each sliding frame is provided with a driving component for driving the movement or stop of the sliding frame.

[0014] By adopting the technical scheme, the sliding frame drives the movement of the sandbox, the position of the sandbox can be replaced between the sliding positions, and the sliding frame is rotatably arranged on one side of the sandbox, so that the center of gravity of the sandbox remains downward during the movement of the sliding frame, that is, the open end of the sandbox is arranged upward, thereby avoiding the scattering of the sand during the movement of the sandbox.

[0015] Optionally, a limiting component is arranged at the sliding position corresponding to the accommodation slot of the case, and the limiting component is used to limit the movement of the sandbox.

[0016] By adopting the technical scheme, when the sandbox that needs to be fed is moved to the sliding position corresponding to the accommodation slot, the sandbox is limited by the limiting component, so that the sandbox is prevented from moving and the sand feeding of the sandbox is ensured.

[0017] Optionally, the limiting component includes an insert block movably arranged on the side wall of the case.

[0018] The sandbox is formed with an insertion slot on one side of the insert block, and the insert block is inserted into the insertion slot.

[0019] By adopting the technical scheme, when the sandbox is moved to the sliding position corresponding to the accommodation slot, the insert block is extended into the insertion slot, so that the sandbox at the sliding position is fixed, thereby avoiding the shaking of the sandbox.

[0020] Optionally, a shielding plate is arranged at the upper end of the sandbox, and the shielding plate is used to open or close the upper end of the sandbox.

[0021] By adopting the technical scheme, the upper end of the sand box can be closed by the shielding plate after the molding sand is loaded into the sand box, so that the molding sand is prevented from spilling out of the sand box when the sand box moves between the sliding positions.

[0022] Optionally, the shielding plate is a rolling curtain plate.

[0023] The sand box is provided with a winding component on one side, and the shielding plate is connected to the winding component to close or open the upper side of the sand box.

[0024] By adopting the technical scheme, the winding component can realize winding and unwinding of the shielding plate, so as to shield or open the sand box.

[0025] Optionally, the sand box is provided with a sand filling port above the side away from the sliding position.

[0026] The sand box is movably provided with a first closing plate at a position corresponding to the sand filling port, to open or close the sand filling port.

[0027] By adopting the technical scheme, when the molding sand needs to be filled, the sand filling port can be opened by the movement of the first closing plate, then the molding sand can be filled into the sand box through the sand filling port, and then the sand filling port can be closed by the first closing plate.

[0028] Optionally, the sand box is provided with a sand outlet below the side away from the sliding position.

[0029] The sand box is movably provided with a second closing plate at a position corresponding to the sand outlet, to open or close the sand outlet.

[0030] By adopting the technical scheme, when the molding sand in the sand box needs to be discharged, the sand outlet can be opened by the movement of the second closing plate, so that the residual molding sand in the sand box can be discharged from the sand outlet by gravity, and then the sand outlet can be closed by the second closing plate to refill the molding sand.

[0031] Optionally, the case is formed with a slide rail connecting a plurality of sliding positions, the sliding carriage slides on the slide rail, and a driving rack is formed on the slide rail along the track thereof.

[0032] The driving component comprises:

[0033] A driving gear is rotatably arranged on the sliding carriage and engaged with the driving rack.

[0034] A driving element is fixed to the sliding carriage to drive the driving gear to rotate or stop rotating.

[0035] By adopting the technical scheme, when working, the driving element drives the driving gear to rotate, the driving gear can move along the driving rack, thereby realizing the movement of the slide along the slide rail, and the position adjustment of each sand box is completed, when it is needed to stop the movement of the sand box, the driving element drives the driving gear to stop rotating, the driving gear is locked through the meshing with the driving rack, and the position fixing of the sand box is realized.

[0036] In a second aspect, the application provides a sand printing machine, which adopts the following technical scheme:

[0037] The sand printing machine comprises a sand feeding component.

[0038] By adopting the technical scheme, the multiple replaceable and movable sand boxes can realize the storage of different sand in different sand boxes, and the sand feeding operation of different sand is realized through the movement of different sand boxes, so that the sand feeding efficiency of a single sample of multiple sand printing can be improved, and the printing efficiency of the sand mold is improved.

[0039] In summary, the application has at least one of the following beneficial technical effects:

[0040] 1. The N sliding positions in the rectangular array in the case are arranged, and the N-1 sand boxes can slide between the sliding positions, so that the positions of the sand boxes can be replaced, any sand box can be located at the sliding position corresponding to the accommodation slot, the sand boxes can be fed through the accommodation slot, different sand can be stored in different sand boxes, the sand feeding operation of different sand is realized through the movement of different sand boxes, when the sand box needs to be moved to the position of the accommodation slot, the sand in the sand box can be pushed out to the upper side of the case through the upward movement of the sand pushing plate, after the sand in the sand box is used, the sand box is moved again, another sand box is moved to the position of the accommodation slot, and the sand feeding operation is performed again, so that the sand feeding efficiency of a single sample of multiple sand printing can be improved, and the printing efficiency of the sand mold is improved.

[0041] 2. The slide drives the movement of the sand boxes, the sand boxes can be replaced between the multiple sliding positions, and the slide is rotatably arranged on one side of the sand box, so that the center of gravity of the sand box is kept downward during the movement of the slide, that is, the open part of the sand box is arranged upward, and the sand is prevented from falling during the movement of the sand box. BRIEF DESCRIPTION OF DRAWINGS

[0042] Figure 1 It is a main view of the sliding position layout of the sand feeding component in the embodiment of the application.

[0043] Figure 2 is a schematic view of a sand box layout of a sanding part in an embodiment of the present application;

[0044] Figure 3 is a schematic view of a slide rail structure of a sanding part in an embodiment of the present application;

[0045] Figure 4 is a schematic view of a cross section of a sand box structure of a sanding part in an embodiment of the present application;

[0046] Figure 5 is a schematic view of a cross section of a winding part of a sanding part in an embodiment of the present application;

[0047] Figure 6 is a schematic view of a viewing door structure of a sanding part in an embodiment of the present application;

[0048] Figure 7 is a schematic view of a cross section of a sand printing machine structure in an embodiment of the present application;

[0049] Figure 8 is a schematic view of a sanding roller structure of a sand printing machine in an embodiment of the present application.

[0050] The reference signs are explained as follows: 1, case; 11, cavity; 12, sliding position; 13, position slot; 14, slide rail; 141, driving rack; 15, slope; 16, plug; 161, limit pushing cylinder; 17, viewing door; 18, cavity; 2, sand box; 21, sliding carriage; 211, pushing wheel; 212, driving gear; 22, sand pushing plate; 221, sand pushing driving part; 23, plug slot; 24, shielding plate; 25, sealing cavity; 251, winding roller; 252, winding motor; 26, guide slot; 27, sand filling opening; 271, first closing plate; 272, first pushing cylinder; 28, sand discharging opening; 281, second closing plate; 282, second pushing cylinder; 3, sand bearing part; 31, sand frame; 32, sand bed; 33, pushing cylinder; 4, sanding part; 41, sanding roller; 42, guide rail; 43, sliding seat; 44, guide rack; 45, guide gear; 46, reciprocating motor; 5, binder spraying part; 51, horizontal rail; 52, vertical rail; 53, spraying head; 54, spraying nozzle; 55, liquid storage tank; 56, liquid delivery pipe. DETAILED DESCRIPTION

[0051] The embodiment of the present application discloses a sanding part, which is mainly applied to a sand printing machine.

[0052] Reference Figure 1 and Figure 2 A sanding part comprises a case 1, wherein the case 1 is vertically arranged, and the horizontal section of the case 1 is in a rectangular shape.

[0053] The inside of the cabinet 1 is shaped into a cavity 11, and a plurality of sliding positions 12 are vertically arranged in the cavity 11. The sliding positions 12 are arranged in a rectangular array. In this embodiment, four sliding positions 12 are arranged, i.e., two sliding positions 12 are arranged in each horizontal row and each vertical row in the cavity 11. A position corresponding to one sliding position 12 on the upper side of the cavity 11 on the upper side of the cabinet 1 is provided with a slot 13.

[0054] A plurality of sandboxes 2 are arranged in the cavity 11 and are used in cooperation with the sliding positions 12. In order to ensure that the sandboxes 2 can be exchanged between the sliding positions 12, the number of sandboxes 2 should be at least one less than the number of sliding positions 12. In this embodiment, four sliding positions 12 are arranged, and therefore, at most three sandboxes 2 are arranged. For the sake of description, three sandboxes 2 are taken as an example for illustration. The three sandboxes 2 are moved between the four sliding positions 12, so that the three sandboxes 2 can be sequentially located in the slot 13, thereby facilitating sanding of the sandboxes 2.

[0055] In this way, the N sliding positions 12 arranged in a rectangular array in the cabinet 1 cooperate with N-1 sandboxes 2 that can slide between the sliding positions 12. The sliding of the sandboxes 2 along the sliding positions 12 enables the positions of the sandboxes 2 to be exchanged with each other, so that any sandbox 2 can be located at a position corresponding to the sliding position 12 of the slot 13, thereby facilitating sanding of the sandboxes 2 through the slot 13. Different sand can be stored in different sandboxes 2, and sanding operation of different sand can be achieved by moving different sandboxes 2. This achieves the switching of different sand without stopping the machine or removing and replacing the sand from the sandboxes 2, thereby improving the sanding efficiency of a single sample of multiple types of sand, and improving the printing efficiency of the sand mold.

[0056] Referring to Figure 2 and Figure 3 The sliding mode of the sandboxes 2 in the cabinet 1 is further illustrated by way of example as follows:

[0057] Referring to Figure 3 A slide rail 14 is formed on one side of the cavity 11 of the cabinet 1 and corresponds to the positions of the plurality of sliding positions 12. The slide rail 14 is connected to the plurality of sliding positions 12 in sequence. Each sandbox 2 is provided with a sliding carriage 21 on the side close to the sliding groove. The sliding carriage 21 is rotationally connected to the sandbox 2, and the rotation axis of the sliding carriage 21 is horizontally arranged. Two push wheels 211 are rotationally connected to the two sides of the slide rail 14 on the sliding carriage 21. The two push wheels 211 can abut against the opposite sides of the slide rail 14 and move along the slide rail 14. In addition, in order to improve the tightness of the cooperation between the slide rail 14 and the push wheels 211, the slide rail 14 is formed by processing a I-shaped steel in this embodiment. The sliding carriage 21 is also provided with a driving component for driving the sliding carriage 21 to move or stop.

[0058] ReferringFigure 3 , so that by driving the movement of the carriage 21, the push wheel 211 along the slide rail 14 can be run, each sand box 2 can be moved to replace the position between the plurality of sliding positions 12, and because the carriage 21 is rotatably arranged on one side of the sand box 2, the sand box 2 can be kept with the center of gravity downward during the movement of the carriage 21, thereby avoiding the sand box 2 from falling during the movement of the sand box 2.

[0059] Referring to Figure 3 , the drive rack 141 is formed along the track on both sides of the slide rail 14. The drive component includes a drive gear 212 coaxially fixed to one side of each push wheel 211, the drive gear 212 is engaged with the drive rack 141, and the drive element such as a servo motor, a stepping motor is fixed in the carriage 21, the output end of the drive element is connected to the axis position of the push wheel 211, so that the push wheel 211 and the drive gear 212 can be driven synchronously, so that the drive element drives the push wheel 211 and the drive gear 212 to synchronously rotate, so that the drive gear 212 can move along the drive rack 141, thereby realizing the movement of the carriage 21 along the slide rail 14, completing the position adjustment of each sand box 2. When it is necessary to stop the movement of the sand box 2, the drive gear 212 is stopped by the drive element, the engagement of the drive gear 212 and the drive rack 141 is locked, so that the position of the sand box 2 is fixed.

[0060] Referring to Figure 3 , further, the upper surface of the case 1 is formed with an inclined surface 15 inclined upward away from the position of the sand box 2, the inclined surface 15 is located below the position of the sand box 2, and the sliding position 12 is located on the side of the horizontal direction of the other sliding position 12. So it is convenient to move the sand box 2 along the horizontal direction to the position of the sand box 2.

[0061] The specific structure of the sand box 2 is further described as follows:

[0062] Referring to Figure 4 , the sand box 2 is in a rectangular box structure, the upper end is open, and the sand box 2 can be filled with sand. The bottom of the sand box 2 is horizontally provided with a sand pushing plate 22, the side edge of the sand pushing plate 22 abuts against the inner wall of the sand box 2, and the lower side of the sand box 2 is provided with a sand pushing driving element 221 for driving the sand pushing plate 22 to move upward. In this embodiment, the sand pushing driving element 221 is not limited to the sand pushing box 2, that is, any element that can realize the vertical movement of the sand pushing plate 22 can be used as the sand pushing driving element 221. So when the sand pushing box 2 moves to the position of the sand box 2, the sand pushing plate 22 is pushed vertically upward by the sand pushing box 2, so that the sand is pushed out of the upper end of the sand box 2 and protrudes from the upper side of the case 1.

[0063] Referring to Figure 2 Figure 3In addition, to avoid the sand box 2 from shaking during the sand filling process, a limiting component is arranged at the sliding position 12 below the accommodation slot 13 in the cavity 11, for limiting the movement of the sand box 2, which will be further described below:

[0064] Referring to FIG. 2 and Figure 3 The limiting component includes an insertion block 16 arranged on the side of the cavity 11 where the sliding rail 14 is installed, and the machine box 1 is provided with a limiting push cylinder 161 corresponding to the position of the sliding block, and the telescopic rod of the limiting push cylinder 161 is directed towards the sand box 2 and fixed to the insertion block 16. The side of the sand box 2 close to the sliding rail 14 is formed with an insertion slot 23, and when the sand box 2 moves to the sliding position 12 below the accommodation slot 13, the limiting push cylinder 161 drives the telescopic rod to extend, so that the insertion block 16 can be inserted into the insertion slot 23 of the sliding rail 14, thereby fixing the sand box 2 in the cavity 11 and avoiding the sand box 2 from shaking, ensuring the stable operation of the sand filling process.

[0065] Referring to Figure 4 Further, the upper side of the sand box 2 can be provided with a shielding plate 24 for opening or closing the upper side of the sand box 2.

[0066] The shielding plate 24 can be fixed by using a detachable connection mode such as insertion or clamping with the upper end of the sand box 2, so that the shielding plate 24 can be easily opened when filling sand or sanding.

[0067] Further, to facilitate the opening of the shielding plate 24, a winding component can also be provided to wind the shielding plate 24, which can be implemented by the following scheme:

[0068] In this embodiment, the shielding plate 24 is a roller shutter plate, which is composed of a plurality of parallel hard plates and a deformable soft curtain fixed between adjacent plates. In this way, the shielding plate 24 can be wound and can ensure the strength after being unfolded.

[0069] Referring to Figure 5 The side of the sand box 2 is formed with a sealing cavity 25, and the winding component is arranged in the sealing cavity 25. The winding component specifically includes a winding roller 251 horizontally rotating in the sealing cavity 25 and a winding motor 252 fixed to the end of the winding roller 251. The machine box 1 forms a communication groove between the sealing cavity 25 and the sand container part, one end of the shielding plate 24 passes through the communication groove and is fixed to the winding roller 251, and the upper side wall of the sand box 2 is provided with a guide groove 26 along the movement track of the shielding plate 24. The shielding plate 24 can move in the guide groove 26, and the winding motor 252 drives the winding roller 251 to rotate, which can drive the shielding plate 24 to move synchronously along the guide groove 26, thereby realizing winding or unwinding and opening or closing the upper end of the sand box 2, effectively avoiding the sand from spilling out.

[0070] To facilitate the quick filling and discharging of the sand in the sand box 2, the following further settings can also be made:

[0071] With reference to Figure 6 , the cabinet 1 is provided with an inspection door 17 on the side away from the slide rail 14 corresponding to the cavity 11, one side of the inspection door 17 is hinged to the cabinet 1, and the other side of the inspection door 17 is buckled to the cabinet 1. The cavity 11 of the cabinet 1 can be opened through the inspection door 17, so that the running state of each sand box 2 in the sliding position 12 can be observed.

[0072] With reference to Figure 6 , the sand box 2 is horizontally provided with a sand filling port 27 at the upper end of the side away from the sliding frame 21, and a first closing plate 271 is vertically and slidably connected to the lower position of the outer side of the sand box 2 corresponding to the sand filling port 27. The first closing plate 271 vertically moves upward to block the sand filling port 27. The sand box 2 is fixed with a first push cylinder 272 at the lower side corresponding to the first closing plate 271, which is used to push the first closing plate 271 to vertically move. The sand box 2 is horizontally provided with a sand outlet 28 at the lower end of the side away from the sliding frame 21, and a second closing plate 281 is vertically and slidably connected to the upper position of the outer side of the sand box 2 corresponding to the sand outlet 28. The second closing plate 281 vertically moves downward to block the sand outlet 28. The sand box 2 is fixed with a second push cylinder 282 at the upper side corresponding to the second closing plate 281, which is used to push the second closing plate 281 to move.

[0073] In this way, when it is necessary to fill the sand, the inspection door 17 is opened, the sand filling port 27 is opened by moving the first closing plate 271, then the sand is filled in the sand box 2 through the sand filling port 27, and then the sand filling port 27 is closed by the first closing plate 271. When it is necessary to discharge the residual sand in the sand box 2, the inspection door 17 is also opened, the sand outlet 28 is opened by moving the second closing plate 281, so that the residual sand in the sand box 2 can be discharged from the sand outlet 28 by gravity, and then the sand outlet 28 is closed by the second closing plate 281, and the sand is refilled.

[0074] In a second aspect, the embodiments of the present application also disclose a sand printing machine.

[0075] With reference to Figure 7 , a sand printing machine comprises the sand filling component in the above embodiments, and further comprises a sand bearing component 3, a sand laying component 4 and a binder spraying component 5.

[0076] With reference to Figure 7The sand carrying part 3 is arranged on the cabinet 1 at the side away from the inclined surface 15 of the accommodation slot 13, and the cabinet 1 is vertically provided with a containing groove 18 corresponding to the position of the sand carrying part 3, that is, the arrangement direction of the containing groove 18 and the accommodation slot 13 is the same as the length direction of the cabinet 1. The sand carrying part 3 comprises a sand frame 31 fixedly arranged at the lower side of the containing groove 18 and vertically arranged, the size of the sand frame 31 is the same as the size of the containing groove 18, the upper and lower ends of the sand frame 31 are both open, the sand bed 32 is horizontally arranged at the lower side of the sand frame 31, the side wall of the sand bed 32 can abut against the inner side wall of the sand frame 31, and the cabinet 1 is fixedly provided with a push cylinder 33 corresponding to the lower side of the sand bed 32, the push cylinder 33 is vertically arranged, and the telescopic rod of the push cylinder 33 can abut against the sand bed 32. In working, the push cylinder 33 drives the telescopic rod to extend, so that the sand bed 32 is pushed to vertically move along the sand frame 31 until the upper side of the sand bed 32 is flush with the upper side of the cabinet 1.

[0077] With reference to Figure 8 The sand laying part 4 comprises a sand laying roller 41, which is horizontally arranged at the upper side of the cabinet 1, the axis direction of the sand laying roller 41 is the same as the width direction of the cabinet 1, and the lower side of the sand laying roller 41 abuts against the upper surface of the cabinet 1.

[0078] With reference to Figure 8 The cabinet 1 is fixedly provided with guide rails 42 at the two sides of the upper surface, the guide rails 42 extend from the upper end of the inclined surface 15 to the side of the containing groove 18 away from the accommodation slot 13. The two ends of the sand laying roller 41 are fixedly provided with sliding seats 43, the two sliding seats 43 are slidingly connected to the guide rails 42, the cabinet 1 is fixedly provided with a guide rack 44 along the guide rail 42 at one side of the guide rail 42, a guide gear 45 is further rotationally arranged on one sliding seat 43 corresponding to the guide rack 44, the guide gear 45 is engaged with the guide rack 44, and a reciprocating motor 46 for driving the guide gear 45 to rotate is further fixedly arranged on the sliding seat 43.

[0079] With reference to Figure 8 In working, the reciprocating motor 46 drives the gear to rotate, and through the engagement of the guide gear 45 and the guide rack 44, the sliding seat 43 is driven to reciprocate along the guide rail 42, so that the sand laying roller 41 is driven to reciprocate between the accommodation slot 13 and the containing groove 18. Further, after the uppermost sand of the sand box 2 is pushed out from the accommodation slot 13 to the upper side of the cabinet 1 through the sand feeding part, the sand laying roller 41 is driven to move from the side of the containing groove 18 away from the sand bed 32 to the direction of the sand bed 32, so that the sand on the upper side of the containing groove 18 can be pushed to the sand bed 32, and the sand is spread and leveled.

[0080] With reference to Figure 7 and Figure 8The binder spraying part 5 comprises a horizontal rail 51 fixed horizontally on the upper side of the cabinet 1, the length direction of the horizontal rail 51 is the same as the length direction of the cabinet 1, a vertical rail 52 is slidably arranged on the horizontal rail 51 along the length direction of the horizontal rail 51, and the length direction of the vertical rail 52 is perpendicular to the length direction of the horizontal rail 51. A spraying head 53 is slidably arranged on the vertical rail 52 along the length direction of the vertical rail 52. The horizontal rail 51 is fixed with a first driving part for driving the vertical rail 52 to move, and the vertical rail 52 is fixed with a second driving part for driving the horizontal rail 51 to move, and the first driving part and the second driving part can be realized by horizontal push cylinders.

[0081] With reference to Figure 8 The spraying head 53 is fixed with three spraying nozzles 54, and a plurality of liquid storage tanks 55 are further fixed on one side of the cabinet 1. A liquid conveying pipe 56 is connected between each liquid storage tank 55 and the spraying nozzle 54. Thus, since different binders are required for different types of sand, a plurality of spraying nozzles 54 are arranged, and each spraying nozzle 54 corresponds to a liquid storage tank 55, so that each spraying nozzle 54 is supplied with a binder respectively, thereby avoiding frequent cleaning and replacement of the spraying nozzle 54, and effectively realizing printing of different types of sand.

[0082] In summary, when printing sand molds is required, first, the sand bed 32 is raised to a height that is lower than the thickness of one layer of sand on the upper side of the cabinet 1, the spraying nozzle 54 is driven to move by the binder spraying head 53, and the binder is sprayed on the upper side of the sand bed 32 according to the preset pattern, the uppermost sand of the sand box 2 is pushed to protrude from the upper side of the cabinet 1 by the sand feeding part, and then the sand is pushed to move towards the sand bed 32 by the sand laying roller 41, so that the sand is laid on the upper side of the sand bed 32. At this time, the sand on the sand bed 32 that is coated with the binder can be bonded and fixed. At this time, the bottom layer of the sand mold can be completed. Then, the sand laying roller 41 is retracted, and the binder is sprayed on the sand laid on the sand bed 32 according to the pattern slice of the next layer by the binder spraying part 5. Then, the sand bed 32 is lowered by one layer of sand mold height, so that the sand mold on the upper side of the sand bed 32 is lowered synchronously with the cabinet 1. The sand feeding part continues to push the sand out of the upper side of the cabinet 1, and then the sand laying roller 41 moves again to realize the bonding of the sand mold on the sand bed 32. Thus, the sand mold printing required can be achieved by continuous reciprocation. When other sand is required, the sand box 2 on the upper side is covered by the shielding plate 24, the sand box 2 is rotated to the other sand box 2 on the upper side by the sliding frame 21, the shielding plate 24 is opened, another spraying nozzle 54 is used, and the previous printing steps are repeated, so that the rapid printing of a single sample of various types of sand can be realized.

[0083] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Therefore, any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A sanding component, characterized in that, include: The chassis (1) has N sliding positions (12) arranged vertically in a rectangular array inside the chassis (1), and the upper side of the chassis (1) has a clearance groove (13) corresponding to a sliding position (12); N-1 sand boxes (2) are arranged on N sliding positions (12) and can move relative to each other along N sliding positions (12); Each of the sand boxes (2) is provided with a sand pusher plate (22) at the bottom, which is used to push the molding sand in the sand box (2) out of the upper side of the sand box (2).

2. The sanding component according to claim 1, characterized in that: A slide (21) is rotatably provided on one side of the sand box (2), and the slide (21) can be movably disposed between multiple sliding positions (12); Each carriage (21) is equipped with a driving component for driving the carriage (21) to move or stop.

3. The sand-applying component according to claim 1, characterized in that: The chassis (1) is provided with a limiting component at the sliding position (12) corresponding to the clearance groove (13) to restrict the movement of the sand box (2).

4. The sanding component according to claim 3, characterized in that: The limiting component includes a retractable insert (16) disposed on the side wall of the chassis (1); The sand box (2) has a slot (23) formed on one side corresponding to the insertion block (16) for inserting the insertion block (16).

5. The sanding component according to claim 1, characterized in that: Each of the sand boxes (2) is provided with a baffle plate (24) at the top, which is used to open or close the top of the sand box (2).

6. The sanding component according to claim 5, characterized in that: The baffle (24) is a roller shutter panel; A winding component is provided on one side of the sand box (2), and the baffle plate (24) is connected to the winding component to close or open the upper side of the sand box (2).

7. The sanding component according to claim 1, characterized in that: The sand box (2) is provided with a sand filling port (27) on the side away from the sliding position (12); The sand box (2) is provided with a first sealing plate (271) at the position corresponding to the sand filling port (27) for opening or closing the sand filling port (27).

8. The sanding component according to claim 1, characterized in that: The sand box (2) is provided with a sand outlet (28) on the side away from the sliding position (12); The sand box (2) is provided with a second sealing plate (281) at the position corresponding to the sand outlet (28) for opening or closing the sand outlet (28).

9. The sanding component according to claim 2, characterized in that: The chassis (1) has a slide rail (14) forming a connection of multiple sliding positions (12), the slide frame (21) slides on the slide rail (14), and a drive rack (141) is formed on the slide rail (14) along its trajectory; The driving component includes: The drive gear (212) is rotatably mounted on the slide (21) and meshes with the drive rack (141); The driving element is fixed to the carriage (21) and is used to drive the drive gear (212) to rotate or stop.

10. A molding sand printer, characterized in that, Includes the sanding component as described in any one of claims 1-9.

Images