CN113245561A - Movable type building bin for large 3D printing equipment - Google Patents

Abstract

The application discloses storehouse is built to movable type for large-scale 3D printing apparatus for print in 3D printing apparatus's printing storehouse below, it includes: the printing platform is driven by the driving structure to move up and down in the bin body; the top of the bin body is provided with a fixed groove, and the inflatable rubber ring is arranged in the fixed groove and is in contact connection with the bottom of the printing bin through inflation or is separated from the bottom of the printing bin through deflation; the positioning part is arranged on the side surface of the bin body and used for positioning the construction bin relative to the printing bin before the inflatable rubber ring is inflated or for releasing the positioning relative to the printing bin after the inflatable rubber ring is deflated. The movable construction cabin for the large-scale 3D printing equipment can simply and quickly realize the connection and the disconnection of the construction cabin and the printing cabin, and the construction cabin is stably supported, so that the structure is simple, and the technical difficulty and the cost are reduced.

Description

Movable type building bin for large 3D printing equipment

Technical Field

The invention belongs to the technical field of 3D printing equipment, and particularly relates to a movable construction bin for large-scale 3D printing equipment.

Background

In recent years, 3D printing technology has grown mature and is widely used in various fields. The existing building bin of the 3D printing equipment is mainly divided into a fixed type and a movable type, and the fixed type building bin is fixed in the 3D printing equipment for a long time and cannot be freely moved and replaced; and the movable type construction bin can be freely moved and replaced as an independent module, after printing is completed, the movable type construction bin can be moved out of the printing equipment to clean powder and take out products, and the movable type construction bin is switched to another construction bin to print, so that the utilization rate of the equipment and the printing work efficiency are greatly improved, and especially the printing work on large-scale products is realized.

In the printing apparatus, the build chamber is disposed below the printing chamber and is airtightly connected to the printing chamber, based on the working principle of printing. To being connected between portable storehouse of establishing and the printing storehouse, through setting up complicated lifting structure among the prior art, lift up whole storehouse of establishing and realize being connected rather than the printing storehouse of top, this mode structure is complicated, and complex operation, especially to the storehouse of establishing of large-scale product, its scale is great, need the lifting structure to possess enough and stable holding power more, just can guarantee to establish the storehouse and obtain stable support at whole printing in-process, keep with the stable connection who prints the storehouse, the technical degree of difficulty and the cost of lifting structure have also been improved thereupon.

Accordingly, the prior art is in need of improvement and development.

Disclosure of Invention

An object of the embodiment of the application is to provide a storehouse is built to movable type for large-scale 3D printing apparatus, can realize simply fast that it is connected and breaks away from with the printing storehouse to make the storehouse of building obtain stable support, simple structure has reduced the technical difficulty and cost.

In order to solve the technical problem, the movable type construction cabin for the large 3D printing equipment provided by the embodiment of the application is used for printing below the printing cabin of the 3D printing equipment, and comprises:

the printing device comprises a bin body, a printing platform and a driving structure, wherein the printing platform is driven by the driving structure to move up and down in the bin body;

the top of the bin body is provided with a fixed groove, and the inflatable rubber ring is clamped in the fixed groove so as to inflate and expand upwards to be attached to the bottom of the printing bin or deflate and recover to be separated from the bottom of the printing bin;

the positioning part is arranged on the side surface of the bin body and used for positioning the construction bin relative to the printing bin before the inflatable rubber ring is inflated or for releasing the positioning relative to the printing bin after the inflatable rubber ring is deflated.

The utility model provides a storehouse is built to movable type for large-scale 3D printing apparatus, the location through location portion with relieve and the inflation laminating of the inflatable rubber circle at storehouse body top breaks away from with recovering, thereby can realize building the storehouse and print the storehouse be connected with the simple that breaks away from through simple structure, the quick operation, and in the print job, it directly places on working faces such as ground to build the storehouse, to the extensive storehouse of building that is applied to large-scale 3D printing apparatus, the stability of structure in the working process has been guaranteed, the technological degree of difficulty and cost have been showing and have been reduced.

Furthermore, the bin body comprises a forming cylinder and a driving cylinder which are arranged in a mutually-separated mode, the printing platform is arranged in the forming cylinder and is in sealing contact with the inner wall of the forming cylinder, and the driving structure is arranged in the driving cylinder.

Further, the forming cylinder comprises a first top frame, a bottom frame and a frame structure with two through ends, the two ends of the frame structure are connected with the frame structure through the first top frame and the bottom frame respectively, the fixing grooves are formed in the first top frame, and the bottom frame is connected with the driving cylinder.

Further, the frame structure comprises a first top frame, a bottom frame, four first side plates and four connecting strips, the four first side plates are arranged in a surrounding mode, every two first side plates are connected through any connecting strip to form the frame structure, the connecting strips are L-shaped structural members, and arc-shaped surfaces are arranged on one sides, facing the inside of the forming cylinder, of turning positions of the connecting strips.

Further, above-mentioned underframe is equipped with first installation department and second installation department, first installation department and second installation department are followed the underframe encircles the setting, and the second installation department is located the peripheral arch of first installation department sets up, so that it is right frame construction carries on spacingly, first installation department is equipped with first locating piece, first locating piece is used for right frame construction advances line location.

Further, above-mentioned first frame is equipped with third installation department and fourth installation department, third installation department and fourth installation department are followed first frame encircles the setting, and the fourth installation department is located the peripheral arch setting of third installation department, it is right to carry out spacing to frame construction, the third installation department is equipped with the second setting element, the second setting element is used for right frame construction advances line location.

Furthermore, the driving cylinder comprises a rectangular frame, a bottom plate and four second side plates, wherein the bottom plate is connected with the bottom of the rectangular frame, and the four second side plates are respectively connected with four side surfaces of the rectangular frame, so that the driving cylinder forms a box-type structure with an open top.

Further, above-mentioned rectangular frame's including support body and six deckle boards, the support body is formed by welding of cavity side pipe, six deckle boards are in respectively six surfaces of support body correspond the welding, in six deckle boards, with the corresponding deckle board in top surface and the side of support body is equipped with the mounting groove that is used for installing the sealing strip.

Furthermore, a recovery groove for recovering the metal powder is arranged on the periphery of the fixing groove.

Furthermore, the driving structure comprises a driving assembly, a guiding assembly, a first flange plate and a second flange plate, wherein the driving assembly is connected with the driving cylinder through the first flange plate, the moving end of the driving assembly is connected with the printing platform to drive the printing platform to move up and down, the guiding assembly comprises a guide pillar and a guiding piece, the second flange plate is connected with the driving assembly, the guiding piece is arranged on the second flange plate, one end of the guide pillar is connected with the moving end of the driving assembly or the printing platform, and the other end of the guide pillar penetrates through the guiding piece.

The utility model provides a storehouse is built to movable type for large-scale 3D printing apparatus, when the below of building the storehouse fixed point and moving to the printing storehouse, fix a position the back through location portion and printing storehouse, the bottom laminating of upwards inflation and printing storehouse is inflated to the rubber circle that aerifys at rethread storehouse body top, thereby make to build the storehouse and realize fast and print the accurate sealing connection in storehouse, after this founds the storehouse and accomplishes the printing work, make and aerify the rubber circle gassing and recover and break away from the bottom of printing the storehouse and relieve the location back to location portion, can shift out the below of storehouse from printing the storehouse of building, the next storehouse of building of fast switch-over. The utility model provides a storehouse is built to movable type for large-scale 3D printing apparatus realizes building the storehouse and prints the simple structure that the storehouse is connected, and the operation is simple and direct quick, through this connection structure, builds the storehouse and can directly place on working faces such as ground in the printing work, to being applied to large-scale storehouse of building of large-scale 3D printing apparatus, has guaranteed the stability of structure in the course of the work, has reduced the technical difficulty and cost especially.

Additional features and advantages of the present application will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the present application. The objectives and other advantages of the application may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

Fig. 1 is a schematic structural diagram of a movable building bin for a large 3D printing apparatus according to an embodiment of the present application.

Fig. 2 is an exploded schematic view of a forming cylinder of a movable construction bin for a large 3D printing apparatus according to an embodiment of the present application.

Fig. 3 is a schematic structural diagram of a driving cylinder of a movable construction bin for a large 3D printing apparatus according to an embodiment of the present application.

Fig. 4 is an exploded schematic view of a rectangular frame of a movable construction cabin for a large 3D printing apparatus according to an embodiment of the present disclosure.

Fig. 5 is a schematic structural diagram of a driving assembly of a movable building bin for a large 3D printing apparatus according to an embodiment of the present application.

Fig. 6 is a schematic cross-sectional view of a first top frame of a mobile construction cabin for a large 3D printing apparatus according to an embodiment of the present application.

Fig. 7 is a schematic structural diagram of a connecting strip for a movable building bin of a large 3D printing apparatus according to an embodiment of the present application.

Fig. 8 is a schematic structural diagram of a hidden part structure of a movable building bin for a large 3D printing apparatus according to an embodiment of the present application.

Description of reference numerals: 110. An inflatable rubber ring; 111. fixing grooves; 112. a recovery tank; 120. a positioning part; 200. a forming cylinder; 210. a first top frame; 220. a bottom frame; 230. a first side plate; 240. a connecting strip; 241. an arc-shaped surface; 211. a third mounting portion; 212. a fourth mounting portion; 221. a first mounting portion; 222. a second mounting portion; 250. an L-shaped connector; 300. a drive cylinder; 310. a rectangular frame; 330. A base plate; 340. a second side plate; 311. a frame body; 312. a frame plate; 313. mounting grooves; 314. reinforcing the square tube; 410. a drive assembly; 430. A first flange plate; 440. a second flange plate; 421. a guide post; 422. a guide member; 450. a drive plate; 460. a connecting plate; 470. a pressure relief nozzle; 480. an air inlet nozzle; 490. an air outlet nozzle; 500. a printing platform.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

As shown in fig. 1 and 8, the present invention relates to a mobile building cabin for a large 3D printing device, which is used for printing below a printing cabin of the 3D printing device, and comprises:

the printing device comprises a bin body, a printing platform 500 and a driving structure, wherein the printing platform 500 is driven by the driving structure to move up and down in the bin body;

the top of the bin body is provided with a fixing groove 111, and the inflatable rubber ring 110 is clamped in the fixing groove 111 to inflate and expand upwards to be attached to the bottom of the printing bin or deflate and recover to be separated from the bottom of the printing bin;

the positioning portion 120 is disposed on a side surface of the bin body, and the positioning portion 120 is configured to position the building bin relative to the printing bin before the inflatable rubber ring 110 is inflated, or to release the positioning relative to the printing bin after the inflatable rubber ring 110 is deflated.

In the concrete application, after the printed construction bin is withdrawn, a new construction bin is moved to the lower part of the printing bin at a fixed point, the construction bin is positioned relative to the printing bin through the positioning part 120 on the side surface, the inflatable rubber ring 110 at the top of the bin body is inflated, the inflatable rubber ring 110 is clamped in the fixing groove 111, three surfaces of the inflatable rubber ring are limited by the fixing groove 111, and the inflatable rubber ring 110 can only expand and deform upwards after being inflated so as to be attached to the printing bin, so that the construction bin can be quickly and accurately in sealing connection with the printing bin, the connection structure is simple and quick, the operation is simple and quick, the lifting is not required to be carried out by using a complex lifting mechanism structure, the technical difficulty and the cost are greatly reduced, in the printing work, the construction bin can be directly placed on the working surface such as the ground and the like instead of keeping the lifting support through the lifting mechanism, for the large-scale construction bin applied to large-scale 3D printing equipment, the structural stability in the work process is ensured, but also reduces the technical difficulty and cost. After the construction bin finishes the printing work, the inflatable rubber ring 110 is deflated and restored to be separated from the bottom of the printing bin and the positioning of the positioning part 120 is released, so that the construction bin can be moved out from the lower part of the printing bin, and the next construction bin can be quickly switched.

Specifically, the width and depth of the fixing groove 111 are set according to the size of the inflatable rubber ring 110 in a natural state, so that the inflatable rubber ring 110 is stably clamped in the fixing groove 111 and can only expand and deform upwards when inflated, for example, the inflatable rubber ring 110 is 20mm wide and 17mm high, the fixing groove 111 is set to be 20mm wide and 17mm deep, so that the inflatable rubber ring 110 is limited on three sides after being installed, and the top surface is expandable. Specifically, the inflatable rubber ring 110 is provided with an air nozzle, and the air nozzle is controlled by an air source generator to inflate and inhale the inflatable rubber ring 110. The inflatable rubber ring 110 may be an inflatable rubber ring of the prior art.

Specifically, the positioning portion 120 may be a positioning pin hole, a corresponding positioning pin is provided in the 3D printing apparatus, and when the fixed point of the build bin moves to the lower side of the print bin, the positioning pin is inserted into the positioning pin hole, so that the build bin is positioned relative to the print bin. In a preferred embodiment, the positioning portion 120 is a positioning groove, a corresponding cylinder may be provided in a large 3D printing apparatus, and the building bin is quickly positioned and released through the telescopic motion of the cylinder. Specifically, this constant head tank link up the setting from top to bottom, from this, guarantee that the constant head tank is accurate in the ascending position that sets up of horizontal direction, can enough guarantee to construct the location accuracy of the relative print cartridge in storehouse. Specifically, the two positioning portions 120 are provided, and the two positioning portions 120 are respectively provided at two opposite sides of the bin body, so that the constructed bin is stably positioned by symmetrical forces.

Specifically, the printing platform 500 and the driving structure may adopt the existing technical means, wherein the periphery of the printing platform 500 is connected with the bin body in a sealing contact manner, and forms a relatively sealed printing environment together with the printing bin; the driving structure may use a motor to provide the driving force.

Specifically, the above-mentioned storehouse body can adopt current technical means, and through the polylith sheet metal around assembling into integral structure, print platform 500 and drive structure all arrange in this integral structure. Because the drive structure need carry out the actuating motion with the space that the printing work piece height conformed to, in order to drive print platform 500 lift removal printing work piece, the height of constructing the storehouse is generally greater than the twice of printing the work piece height, to the storehouse of constructing of being applied to large-scale 3D equipment, along with the increase of the size of printing the work piece, the size of constructing the storehouse increases by a wide margin more, and the high gas tightness demand of constructing the storehouse has provided the requirement to the machining precision of panel, make the processing degree of difficulty of panel, the degree of difficulty of assembling of constructing the storehouse improves greatly, the accuracy and the leakproofness requirement in large-scale storehouse of constructing are difficult to be satisfied to current integral structure.

As shown in fig. 1 and 8, in some preferred embodiments, the cartridge body includes a forming cylinder 200 and a driving cylinder 300 which are separately arranged, the printing platform 500 is disposed in the forming cylinder 200 and is in sealing contact with the inner wall of the forming cylinder 200, and the driving structure is disposed in the driving cylinder 300. This technical scheme, divide the storehouse body into the higher shaping jar 200 of required precision and the lower actuating cylinder 300 of required precision, when panel processing is assembled with the storehouse of building, as long as fully guarantee the accuracy and the leakproofness of shaping jar 200, can enough make this large-scale storehouse of building satisfy the accuracy and the leakproofness demand of printing work, reduced the processing degree of difficulty of panel and the degree of difficulty of assembling of the storehouse of building to a certain extent, guaranteed the accuracy and the gas tightness of building the storehouse to technical research and development cost and manufacturing cost have been saved. Specifically, in the present embodiment, the positioning portion 120 is disposed on the forming cylinder 200, so that the forming cylinder 200 and the printing chamber can be aligned accurately, and smooth printing operation is ensured.

In some preferred embodiments, as shown in fig. 2, the forming cylinder 200 includes a first top frame 210, a bottom frame 220, and a frame structure with two ends penetrating through the frame structure, wherein the first top frame 210 and the bottom frame 220 are respectively connected to the frame structure at two ends of the frame structure, the fixing groove 111 is provided on the first top frame 210, and the bottom frame 220 is connected to the driving cylinder 300. This technical scheme sets up fixed slot 111 through setting up relatively independent small-size part (being first top frame 210), the production and processing of being convenient for, compare in direct panel to the major possession and process, for example the fixed slot is seted up at the top of the major possession metal sheet material of concatenation directly, this technique is put a case and is showing and has reduced the processing degree of difficulty and processing cost, the accuracy of processing has been improved, especially fixed slot 111 is used for installing inflatable rubber circle 110, the work of inflatable rubber circle 110 is related to the precision of its size, direct influence constructs the leakproofness that the storehouse is connected with the printing storehouse.

As shown in fig. 2 and 7, in some preferred embodiments, the frame structure includes a first top frame 210, a bottom frame 220, four first side plates 230 and four connecting strips 240, wherein the four first side plates 230 are arranged in a surrounding manner, and two of the four first side plates are connected with each other through any one of the connecting strips 240 to form the frame structure, the connecting strips 240 are L-shaped structural members, and one side of the turning point of the connecting strips facing the inside of the forming cylinder 200 is provided with an arc surface 241. Through this technical scheme, the arc connection angle between the lateral wall is formed by connecting strip 240 in the shaping jar 200, compares in current processing mode, and the direct milling process of metal sheet to the thickness forms the lateral wall sheet metal that both ends have the arc angle, adopts this structure after, is showing and is reducing processing work load, has improved the machining precision of part to a certain extent to the accuracy and the leakproofness of the shaping jar after assembling have been improved.

In some preferred embodiments, the joint surfaces between each two of the first top frame 210, the bottom frame 220, the four first side plates 230, and the four connecting strips 240 are coated with a sealant. Through this technical scheme, can further guarantee the leakproofness of forming cylinder 200. Specifically, the splicing surface, that is, the surface of each component for splicing connection, as shown in fig. 2, taking one of the first side plates 230 as an example, the top surface a is connected to the first top frame 210, the side surface b is connected to any one of the connecting strips 240, the side surface c is connected to another connecting strip 240, the bottom surface d is connected to the bottom frame 220, the top surface a, the side surface b, the side surface c, and the bottom surface d are all the splicing surfaces, and the surfaces of the first top frame 210, the bottom frame 220, and the two connecting strips 240, which are correspondingly connected, are also splicing surfaces. Specifically, the sealant can adopt a plane sealant which has the advantages of small compression thickness, strong viscosity, long setting time, good sealing property and the like in the prior art, such as a le tai 596 plane sealant.

As shown in fig. 2, in some preferred embodiments, the bottom frame 220 is provided with a first installation portion 221 and a second installation portion 222, the first installation portion 221 and the second installation portion 222 are arranged around the bottom frame 220, the second installation portion 222 is arranged at a periphery of the first installation portion 221 in a protruding manner so as to limit the frame structure, and the first installation portion 221 is provided with a first positioning member (not shown in the figure) for positioning the frame structure. When assembling the forming cylinder 200 in the concrete application, place first curb plate 230 or connecting strip 240 on first installation department 221, carry out accurate location through corresponding first locating part to frame construction after assembling through second installation department 222 carries out whole spacingly, guarantees the accuracy that the forming cylinder 200 was assembled from this. Specifically, the first positioning element may be a column or a table structure protruding from the first mounting portion 221, or may be a positioning pin disposed on the first mounting portion 221, and the first side plate 230 or the connecting strip 240 has a corresponding positioning hole.

As shown in fig. 6, in some preferred embodiments, the first top frame 210 is provided with a third installation portion 211 and a fourth installation portion 212, the third installation portion 211 and the fourth installation portion 212 are arranged around the first top frame 210, the fourth installation portion 212 is located at a periphery of the third installation portion 211 and is protruded to limit the frame structure, and the third installation portion 211 is provided with a second positioning element (not shown), and the second positioning element is used for positioning the frame structure. When assembling forming cylinder 200 in the concrete application, accomplish the concatenation back when frame construction and underframe 220, carry out accurate location through the second setting element, with first top frame 210 and frame construction concatenation to through fourth installation department 212 and second installation department 222 combined action, it is whole spacing to the frame construction after the concatenation to carry out at frame construction's both ends, guarantees the accuracy that forming cylinder 200 assembled from this. Specifically, the second positioning element may be a column or a table structure protruding from the third mounting portion 211, or may be a positioning pin disposed on the third mounting portion 211, and the side plate or the connecting strip 240 has a corresponding positioning hole.

Specifically, two of the first top frame 210, the bottom frame 220, the four first side plates 230, and the four connecting strips 240 are connected by threads. In this technical scheme, through first setting element and second installation department 222, second setting element and fourth installation department 212 to the assembly of shaping jar 200 carry out accurate location, through the effort of the sealed glue of concatenation face and threaded connection's fastening force, ensure that the assembly of shaping jar 200 connects accurately closely.

Specifically, the bottom frame 220 may be connected to the first side plate 230 or the connecting bar 240 by forming a threaded hole through the first mounting portion 221 and driving a fastener such as a screw or a bolt into the first side plate 230 or the connecting bar 240 through the threaded hole.

Specifically, the connecting strip 240 is provided with a plurality of first-class threaded holes and a plurality of second-class threaded holes, the plurality of first-class threaded holes and the plurality of second-class threaded holes are arranged in a staggered manner along the extending direction of the connecting strip 240, and the extending directions of the first-class threaded holes and the second-class threaded holes in the horizontal plane direction are perpendicular to each other, the first-class threaded holes are used for arranging fasteners such as screws or bolts for connecting any one first side plate 230, and the second-class threaded holes are used for arranging fasteners such as screws or bolts for connecting another first side plate 230. In this way, the connection between the connecting strip 240 and the first side plate 230 is completed.

Specifically, the threaded connection between the first top frame 210 and the first side plate 230 may be a through threaded hole formed in the first top frame 210, and a fastener such as a screw or a bolt is driven into the first side plate 230 from the top of the first side plate 230 through the threaded hole to complete the connection, but the connection may present a certain amount of counter bores on the top surface of the first top frame 210, which promotes the useless deposition of powder, thereby increasing the workload of powder cleaning of the construction bin.

As shown in fig. 2, in some preferred embodiments, the first side plate 230 is provided with an L-shaped connector 250, one side wall of the L-shaped connector 250 is connected to the first side plate 230, and the other side wall thereof is provided with a connecting hole connected to the fourth mounting portion 212. In the specific application, when the first top frame 210 is positioned and placed on the frame structure, the fasteners such as screws or bolts penetrate through the connecting holes of the L-shaped connecting member 250 and are driven into the fourth mounting portion 212 of the first top frame 210, so that no additional counter bore is formed in the top surface of the first top frame 210, the deposition of powder is reduced, and the workload of powder cleaning of the construction bin and the difficulty of powder cleaning are reduced. Specifically, the L-shaped connector 250 may be integrally disposed with the first side plate 230, or may be screwed by a fastener such as a screw or a bolt.

As shown in fig. 6, in some preferred embodiments, a recovery groove 112 for recovering metal powder is provided at the periphery of the fixing groove 111. In the concrete application, because the inflation rubber circle 110 upwards expands, protruding for storehouse body top surface, metal powder in the printing can be piled up in the inboard of inflation rubber circle 110, when the deflation of inflation rubber circle 110 is recovered, accumulational metal powder because gravity collapses toward both sides, and the metal powder of outside motion can the landing to the accumulator 112 in the inflation rubber circle 110 outside to avoid metal powder to scatter outside the storehouse of founding, improve the metal powder collection ability, the metal powder recycling who retrieves accumulator 112. Specifically, the recycling tank 112 is disposed on the first top frame 210.

In some preferred embodiments, as shown in fig. 3, the driving cylinder 300 includes a rectangular frame 310, a bottom plate 330, and four second side plates 340, wherein the bottom plate 330 is connected to the bottom of the rectangular frame 310, and the four second side plates 340 are respectively connected to four sides of the rectangular frame 310, so that the driving cylinder 300 forms an open-top box structure. This technical scheme combines second curb plate 340 and bottom plate 330 to form box structure through rectangular frame 310 for driving cylinder 300 compromises steadiness and leakproofness, guarantees driving cylinder 300 and to the stable support of shaping jar 200, and avoids driving structure to receive the interference and pollute and influence drive work, makes should construct the storehouse, especially constructs when the storehouse is the jumbo size specification, can stably and lastingly carry out print work.

As shown in fig. 4, in some preferred embodiments, the rectangular frame 310 includes a frame body 311 and six frame plates 312, the frame body 311 is formed by welding hollow square pipes, and the six frame plates 312 are correspondingly welded on six outer surfaces of the frame body 311. According to the technical scheme, the main body structure of the rectangular frame 310 is formed by the hollow square tubes, so that the firmness of the frame body 311 can be improved, and the frame plate 312 is further welded on the outer layer for reinforcement; by adopting a welded connection mode, no additional assembly is needed in the assembly of the lifting cylinder, and the assembly operation of the building bin is simplified on the basis of matching the requirements of printing work on the precision and the tightness of the driving cylinder 300. Specifically, the frame plate 312 is provided with a threaded hole, and the second side plate 340 is connected to and detached from the rectangular frame 310 by a threaded connection.

In some preferred embodiments, of the six frame plates 312, the frame plate 312 corresponding to the top and side surfaces of the frame body 311 is provided with a mounting groove 313 for mounting a sealing strip. By the technical scheme, the connection sealing performance between the forming cylinder 200 and the driving cylinder 300 and between the rectangular frame 310 and the second side plate 340 is improved.

In some preferred embodiments, the frame body 311 is provided with a square reinforcing pipe 314, and the square reinforcing pipe 314 is disposed between any one of the vertically extending ribs and the adjacent horizontally extending rib of the frame body 311. Through the technical scheme, a supporting force can be provided at an included angle between the vertically extending edge and the adjacent horizontally extending edge, and the driving cylinder 300 is further ensured to stably support the forming cylinder 200.

In a specific application, when the forming cylinder 200 and the driving cylinder 300 are assembled respectively, the forming cylinder 200 is placed on the driving cylinder 300 and connected, specifically, the second mounting portion 222 is provided with a threaded hole, and after the bottom frame 220 is aligned and overlapped with the frame plate 312 at the top of the driving cylinder 300, the frame plate 312 is driven into the corresponding frame plate through the threaded hole by a fastener such as a screw or a bolt, so as to realize the quick connection between the forming cylinder 200 and the driving cylinder 300. Preferably, the contact surfaces of the bottom frame 220 and the corresponding frame plate 312 are coated with a sealant.

In some preferred embodiments, the driving cylinder 300 is communicated with an inert shielding gas, and is provided with an air pressure adjusting structure, and the air pressure adjusting structure is used for controlling the pressure in the driving cylinder 300 in real time according to a preset pressure threshold value. Through the technical scheme, the driving structure in the driving cylinder 300 is protected through inert shielding gas, the air pressure in the driving cylinder 300 and the air pressure in the forming cylinder 200 are controlled to be balanced through the air pressure adjusting structure, and the powder spraying condition caused by the fact that the internal pressure of the driving cylinder 300 is larger than the internal pressure of the forming cylinder 200 is avoided. Specifically, this atmospheric pressure adjusts structure includes suction nozzle 480, play gas nozzle 490, pressure release mouth 470 and atmospheric pressure detector (not shown in the figure), specifically connects the inert gas source through suction nozzle 480 and play gas nozzle 490, carries out the developments gas washing to driving cylinder 300, sets up the pressure threshold value of driving cylinder 300 according to the inside atmospheric pressure of molding cylinder 200, carries out real-time detection to the atmospheric pressure in driving cylinder 300 through the atmospheric pressure detector to carry out pressure release control to driving cylinder 300 according to real-time detection's pressure value and predetermined pressure threshold value through pressure release mouth 470. Specifically, this inlet nozzle 480, outlet nozzle 490 and pressure release mouth 470 can set up the side at driving cylinder 300, and the atmospheric pressure detector can adopt current technical means, for example atmospheric pressure detector or gas sensor etc. can arrange the work of this atmospheric pressure regulation structure through the controller, sets up the pressure threshold value of driving cylinder 300 through this controller to compare the pressure value that the atmospheric pressure detector real-time detection with this preset pressure threshold value, control the pressure release work of pressure release mouth 470, make the atmospheric pressure in the driving cylinder 300 and the atmospheric pressure in the forming cylinder 200 keep balance.

As shown in fig. 5, in some preferred embodiments, the driving structure includes a driving assembly 410, a guiding assembly, a first flange plate 430 and a second flange plate 440, the driving assembly 410 is connected to the driving cylinder 300 through the first flange plate 430, a moving end of the driving assembly 410 is connected to the printing platform 500 to drive the printing platform 500 to move up and down, the guiding assembly includes a guide pillar 421 and a guiding element 422, the second flange plate 440 is connected to the driving assembly 410, the guiding element 422 is disposed on the second flange plate 440, one end of the guide pillar 421 is connected to the moving end of the driving assembly 410 or the printing platform 500, and the other end passes through the guiding element 422. Through the technical scheme, the guide assembly and the driving assembly 410 are highly integrated through the second flange plate 440, and the first flange plate 430 is uniformly connected with the driving cylinder 300, so that the installation of the driving structure comprising the guide assembly cannot influence the air tightness of the constructed cabin, and the accurate installation and the accurate driving of the driving structure can be ensured only by ensuring the planar accuracy of the driving cylinder 300 connected with the first flange plate 430, the dependence of the driving structure on the processing and assembling of other structural components of the constructed cabin is greatly reduced, the installation and the debugging of the driving structure are facilitated, and the mutual influence between the assembling of the driving structure and the assembling of the constructed cabin is eliminated as much as possible. Specifically to this embodiment, the drive structure is coupled to the base plate 330 (specifically via the first flange plate 430).

In some embodiments, there are at least two guide pillars 421, and the guide assembly further includes a connecting plate 460, and one end of at least two guide pillars 421 passes through the guide 422 and is connected to the connecting plate 460. Therefore, the stability of the up-and-down movement of the printing platform 500 is improved by arranging at least two guide pillars 421, and all the guide pillars 421 are connected through the connecting plate 460, so that the free ends of the plurality of guide pillars 421 are mutually connected, a relatively stable structure is formed between the guide pillars 421, and the stability of the guiding movement of the guide pillars 421 is improved. Specifically, in the present embodiment, four guide pillars 421 are provided, and are distributed around the driving assembly 410, the connecting plate 460 is arranged in a concave manner, and the driving assembly 410 is arranged in a concave groove of the connecting plate 460, so that the structural compactness of the driving structure can be improved, and the whole integration of the driving structure is facilitated; accordingly, four guides 422 are provided, the four guides 422 are two sleeveless bushings and two linear bearings, and the sleeveless bushings and the linear bearings are spaced apart. More specifically, the four guide posts 421 form a rectangle, and the two sleeveless bushings and the two linear bearings are respectively arranged diagonally.

Specifically, the driving assembly 410 (specifically, the moving end) is connected to the printing platform 500 through a driving plate 450, and the guide posts 421 are connected to the driving plate 450. The driving assembly 410 includes a servo cylinder and a magnetic scale, and the displacement of the printing platform 500 is monitored in real time through the magnetic scale.

The utility model provides a storehouse is built to movable type for large-scale 3D printing apparatus, location and the relieving through location portion 120, and the inflated rubber circle 110 at storehouse body top expand the laminating and recover and break away from, thereby can realize building the storehouse and print the storehouse be connected with the simple that breaks away from through simple structure, the rapid operation, and in the print job, it directly places on working faces such as ground to build the storehouse, to the extensive storehouse of building that is applied to large-scale 3D printing apparatus, the stability of structure in the working process has been guaranteed, the technological degree of difficulty and cost have been showing and have been reduced. Through dividing the storehouse body into the higher shaping jar 200 of required precision and the lower actuating cylinder 300 of required precision, when assembling the structure storehouse, as long as fully guarantee the accuracy and the leakproofness of shaping jar 200, can enough make this large-scale structure storehouse satisfy the accuracy and the leakproofness requirement of printing work, reduced the degree of difficulty of constructing the accurate assembly in storehouse to a certain extent, guaranteed the accuracy of assembling of constructing the storehouse. The corner position between the side walls of the forming cylinder 200 is formed by the connecting strip 240, so that the sealing performance of the corner position is effectively improved, and the right-angle included angle of the corner position is set to be an arc included angle, which is beneficial to sealing contact and improves the sealing performance of the forming cylinder 200. Through second flange plate 440 with direction subassembly and drive assembly 410 high integration, rethread first flange plate 430 is unified to be connected with driving cylinder 300, make the installation of the drive structure including direction subassembly can not lead to the fact the influence to the gas tightness of founding the storehouse, and only need guarantee in the driving cylinder 300 with the planar accuracy of first flange plate 430 connection can enough guarantee the accurate installation and the accurate drive of drive structure, do benefit to the installation and the debugging of drive structure, the mutual influence between the assembly of drive structure and the assembly of founding the storehouse has been eliminated as far as possible.

In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

What has been described above are merely some embodiments of the present invention. It will be apparent to those skilled in the art that various changes and modifications can be made without departing from the inventive concept thereof, and these changes and modifications can be made without departing from the spirit and scope of the invention.

Claims (10)

1. A movable type construction bin for large 3D printing equipment, which is used for printing below a printing bin of the 3D printing equipment and comprises a bin body, a printing platform (500) and a driving structure, wherein the printing platform (500) is driven by the driving structure to perform lifting motion in the bin body, and the movable type construction bin is characterized by comprising:

the top of the bin body is provided with a fixing groove (111), the inflatable rubber ring (110) is clamped in the fixing groove (111) to inflate and expand upwards to be attached to the bottom of the printing bin, or deflate and recover to be separated from the bottom of the printing bin;

the positioning part (120) is arranged on the side surface of the bin body, and the positioning part (120) is used for positioning relative to the printing bin before the inflatable rubber ring (110) is inflated or is used for releasing positioning relative to the printing bin after the inflatable rubber ring (110) is deflated.

2. The movable construction bin for large 3D printing equipment according to claim 1, wherein the bin body comprises a forming cylinder (200) and a driving cylinder (300) which are arranged separately from each other, the printing platform (500) is arranged in the forming cylinder (200) and is in sealing contact with the inner wall of the forming cylinder (200), and the driving structure is arranged in the driving cylinder (300).

3. The mobile construction silo for large-scale 3D printing equipment according to claim 2, characterized in that the forming cylinder (200) comprises a first top frame (210), a bottom frame (220) and a frame structure with two through ends, the first top frame (210) and the bottom frame (220) are respectively connected with the frame structure at the two ends of the frame structure, the fixing groove (111) is arranged on the first top frame (210), and the bottom frame (220) is connected with the driving cylinder (300).

4. The movable construction bin for the large-scale 3D printing equipment according to claim 3, wherein the frame structure comprises a first top frame (210), a bottom frame (220), four first side plates (230) and four connecting strips (240), the four first side plates (230) are arranged in a surrounding mode, every two first side plates are connected through any one connecting strip (240) to form the frame structure, the connecting strips (240) are L-shaped structural members, and one side of the turning positions of the connecting strips, which faces to the inside of the forming cylinder (200), is provided with an arc-shaped surface (241).

5. The movable construction bin for the large-scale 3D printing equipment according to claim 3, wherein the bottom frame (220) is provided with a first installation part (221) and a second installation part (222), the first installation part (221) and the second installation part (222) are arranged in a surrounding mode along the bottom frame (220), the second installation part (222) is located on the periphery of the first installation part (221) in a protruding mode so as to limit the frame structure, and the first installation part (221) is provided with a first positioning piece which is used for positioning the frame structure.

6. The movable construction bin for large 3D printing equipment according to claim 3, wherein the first top frame (210) is provided with a third installation part (211) and a fourth installation part (212), the third installation part (211) and the fourth installation part (212) are arranged around the first top frame (210), the fourth installation part (212) is arranged on the periphery of the third installation part (211) in a protruding mode so as to limit the frame structure, the third installation part (211) is provided with a second positioning piece, and the second positioning piece is used for positioning the frame structure.

7. The mobile construction silo for large-scale 3D printing equipment according to claim 2, characterized in that the driving cylinder (300) comprises a rectangular frame (310), a bottom plate (330) and four second side plates (340), wherein the bottom plate (330) is connected with the bottom of the rectangular frame (310), and the four second side plates (340) are respectively connected with four sides of the rectangular frame (310), so that the driving cylinder (300) forms a box structure with an open top.

8. The movable construction bin for the large-scale 3D printing equipment according to claim 7, wherein the rectangular frame (310) comprises a frame body (311) and six frame plates (312), the frame body (311) is formed by welding hollow square pipes, the six frame plates (312) are correspondingly welded on six outer surfaces of the frame body (311) respectively, and in the six frame plates (312), the frame plates (312) corresponding to the top surface and the side surface of the frame body (311) are provided with mounting grooves (313) for mounting sealing strips.

9. The mobile construction silo for a large-scale 3D printing apparatus according to claim 2, wherein the fixed groove (111) is provided at the periphery thereof with a recovery groove (112) for recovering metal powder.

10. The mobile construction silo for large 3D printing equipment of claim 2, characterized in that the driving structure comprises a driving component (410), a guide component, a first flange plate (430) and a second flange plate (440), the driving assembly (410) is connected with the driving cylinder (300) through the first flange plate (430), the moving end of the driving component (410) is connected with the printing platform (500), so as to drive the printing platform (500) to carry out lifting motion, the guide component comprises a guide post (421) and a guide piece (422), the second flange plate (440) is connected to the drive assembly (410), the guide (422) is disposed on the second flange plate (440), one end of the guide post (421) is connected with the moving end of the driving component (410) or the printing platform (500), and the other end passes through the guide piece (422).

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