Discharging device

Abstract

The utility model discloses a blanking device which comprises a working bin and a blanking mechanism with a blanking cavity, a base is fixedly installed at the top of the working bin, a feeding channel is arranged in the base, a fixing seat is fixedly installed at the bottom of the blanking mechanism, a blanking channel is arranged in the fixing seat, and the blanking channel is communicated with the working bin. The fixing seat and the base are assembled in a butt joint mode so that the discharging mechanism can be detachably installed on the working bin, the discharging cavity and the working bin are communicated through a discharging channel and a feeding channel, a feeding sealing plug capable of elastically moving up and down is arranged in the feeding channel, and a discharging sealing plug capable of elastically moving up and down is arranged in the discharging channel. Opening and closing of the channel between the discharging mechanism and the working bin do not need manual operation, opening and closing are automatically completed through mutual matching of the discharging sealing plug and the feeding sealing plug, the operation process is simpler, more convenient and faster, the working efficiency is improved, the sealing effect is better through the double-sealing structure of the discharging channel and the feeding channel, and the sealing effect is better. And the condition of dust raising is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to powder material unloading technical field, specifically related to a unloading device. BACKGROUND

[0002] The existing laser selective metal 3D printer, its unloading barrel is detachable installation in the upper portion of the work bin, the valve is arranged between the unloading barrel and the work bin, when the powder material in the unloading barrel is used up, need to remove the unloading barrel from the work bin, need to close the valve manually first, can remove the unloading barrel to take out, to guarantee the sealing property, when the unloading barrel is filled with powder material and is reloaded into the work bin, need to open the valve manually again, can realize the unloading process, the operation process is cumbersome and inconvenient, affects the work efficiency, and the sealing effect is general, and the dust raising condition is easy to appear. UTILITY MODEL CONTENTS

[0003] The utility model aims at providing a unloading device to solve the above technical problem.

[0004] In order to realize the above object, the technical scheme of the utility model is as follows: a unloading device, including work bin and the unloading mechanism with unloading cavity, the top of work bin is fixedly installed with base, the inside of base is provided with feeding channel, the bottom of unloading mechanism is fixedly installed with fixed seat, the inside of fixed seat is provided with unloading channel, through the butt joint assembly of fixed seat and base to realize the detachable installation of unloading mechanism on work bin, the unloading cavity is communicated through unloading channel and feeding channel between work bin, the feeding channel is provided with the feeding sealing plug that can be up and down elastic movement, the unloading channel is provided with the unloading sealing plug that can be up and down elastic movement,

[0005] When the unloading mechanism is installed on the work bin, the unloading sealing plug and the feeding sealing plug are extruded and matched up and down, the feeding sealing plug moves downward under the thrust of the unloading sealing plug to open the feeding channel, and the unloading sealing plug moves upward under the reverse thrust of the feeding sealing plug to open the unloading channel.

[0006] When the unloading mechanism is removed from the work bin, the unloading sealing plug and the feeding sealing plug gradually separate, the unloading sealing plug is reset to close the unloading channel under the elastic force of itself, and the feeding sealing plug is reset to close the feeding channel under the elastic force of itself.

[0007] Preferably, the outside of the unloading sealing plug is sleeved with a first elastic member for providing the unloading sealing plug with downward movement elastic force, and the outside of the feeding sealing plug is sleeved with a second elastic member for providing the feeding sealing plug with upward movement elastic force, and the elastic force of the second elastic member is smaller than that of the first elastic member.

[0008] Preferably, the feeding channel comprises an upper feeding channel and a lower feeding channel, a feeding seal is arranged between the upper feeding channel and the lower feeding channel, a feeding support frame is arranged in the lower feeding channel, the feeding seal plug comprises a feeding plug head and a feeding plug rod which are connected in sequence, a second elastic member is sleeved outside the feeding plug rod, the feeding plug rod is arranged in the feeding support frame, and the upper and lower ends of the second elastic member are respectively abutted with the feeding plug head and the feeding support frame, and the feeding plug head is used for movably plugging the feeding seal.

[0009] Preferably, the base comprises an upper base, a feeding seal plate and a lower base which are sequentially connected in sequence, the upper feeding channel is arranged in the upper base, the lower feeding channel is arranged in the lower base, the feeding seal comprises a first feeding seal and a second feeding seal, the diameter of the first feeding seal is smaller than that of the second feeding seal, the first feeding seal is arranged in the feeding seal plate, and the second feeding seal is arranged at the top of the lower feeding channel, the diameter of the feeding plug head gradually increases from top to bottom, and the feeding plug head is used for movably plugging the first feeding seal and the second feeding seal synchronously.

[0010] Preferably, the upper feeding channel comprises a cylindrical channel and a conical channel which are connected in sequence.

[0011] Preferably, the lower part of the discharging cavity is a conical cavity, the diameter of the conical cavity gradually decreases from top to bottom, a discharging seal is arranged between the discharging cavity and the discharging channel, a discharging support frame is arranged in the discharging channel, the discharging seal plug comprises a discharging plug head, a discharging plug rod and a discharging push block which are connected in sequence, the discharging plug rod is arranged in the discharging support frame, a first elastic member is sleeved outside the discharging plug rod, and the upper and lower ends of the first elastic member are respectively abutted with the discharging support frame and the discharging push block, and the discharging plug head is used for movably plugging the discharging seal.

[0012] Preferably, the discharging plug head comprises a discharging cone and a plugging cone which are integrally formed in sequence, the diameter of the discharging cone gradually increases from top to bottom, the diameter of the plugging cone gradually decreases from top to bottom, the discharging cone is arranged in the discharging cavity, and the plugging cone is arranged in the discharging seal to movably plug the discharging seal.

[0013] Preferably, a discharging seal plate is arranged between the fixing seat and the discharging mechanism, the discharging seal comprises a first discharging seal and a second discharging seal which are arranged in sequence, the diameter of the first discharging seal is greater than that of the second discharging seal, the first discharging seal is a cavity opening of the discharging cavity close to the discharging channel, the second discharging seal is arranged in the discharging seal plate, and the plugging cone is used for movably plugging the first discharging seal and the second discharging seal synchronously.

[0014] Preferably, a cylindrical outer sleeve is connected to the outside of the fixing seat, and the cylindrical outer sleeve is limitingly sleeved outside the base.

[0015] Preferably, a fixing frame is arranged on the working bin, and the fixing frame comprises a square frame and supporting legs connected below four corners of the square frame.

[0016] The utility model has the advantages of the following:

[0017] The utility model discloses a work bin and a blanking mechanism with a blanking cavity, a base is fixedly installed at the top of the work bin, a feeding channel is arranged in the base, a fixing seat is fixedly installed at the bottom of the blanking mechanism, a blanking channel is arranged in the fixing seat, the blanking mechanism is detachably installed on the work bin through the butt joint of the fixing seat and the base, the blanking cavity and the work bin are communicated through the blanking channel and the feeding channel, an elastic feeding sealing plug is arranged in the feeding channel and can move up and down, and an elastic blanking sealing plug is arranged in the blanking channel and can move up and down. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the perspective view of the embodiment of the utility model.

[0019] Figure 2 It is the front view of the embodiment of the utility model.

[0020] Figure 3 It is Figure 2 The sectional view at A-A in the middle.

[0021] Figure 4 It is the schematic view of the blanking mechanism of the embodiment of the utility model being detached from the work bin.

[0022] Figure 5 It is Figure 4 The enlarged schematic view at B in the middle.

[0023] Figure 6 It is Figure 4 The enlarged schematic view at C in the middle.

[0024] Label: 1 work bin, 2 blanking mechanism, 21 blanking cavity, 3 cylinder outer sleeve, 4 fixed frame, 5 base, 51 upper base, 52 feeding sealing plate, 53 lower base, 6 fixed seat, 7 blanking channel, 8 feeding channel, 81 upper feeding channel, 82 lower feeding channel, 9 blanking sealing plug, 91 blanking plug head, 92 blanking plug rod, 93 blanking push block, 10 feeding sealing plug, 101 feeding plug head, 102 feeding plug rod, 11 first elastic member, 12 second elastic member, 13 feeding support frame, 14 first feeding sealing, 15 second feeding sealing, 16 first blanking sealing, 17 second blanking sealing, 18 blanking support frame, 19 blanking sealing plate. DETAILED DESCRIPTION

[0025] To further illustrate the embodiments, the utility model provides the attached drawings. These drawings are part of the utility model disclosure, which is mainly used to illustrate the embodiments, and can be combined with the related description of the specification to explain the operation principle of the embodiments. With reference to these contents, those skilled in the art should understand other possible embodiments and the advantages of the utility model. The components in the drawings are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0026] In the description of the utility model, unless otherwise specified, the meaning of "a plurality of" is two or more than two; The orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, therefore, it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the utility model, it should be pointed out that, unless otherwise specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; It can be mechanically connected, or it can be electrically connected; It can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0028] Reference Figures 1-6As shown, as an embodiment of the utility model provides a discharging device for laser selective metal 3D printer, including work bin 1 and discharging mechanism 2 with discharging cavity 21, discharging mechanism 2 is discharging barrel, the top of work bin 1 is fixedly installed with pedestal 5, the inside of pedestal 5 is provided with feed passageway 8, the bottom of discharging mechanism 2 is fixedly installed with fixed base 6, the inside of fixed base 6 is provided with discharging passageway 7, and the butt joint assembly of fixed base 6 and pedestal 5 is to realize that discharging mechanism 2 is detachably installed on work bin 1, and discharging cavity 21 and work bin 1 are communicated by discharging passageway 7 and feed passageway 8, and the feed sealing plug 10 that can be elastically moved up and down is arranged in feed passageway 8, and the discharging sealing plug 9 that can be elastically moved up and down is arranged in discharging passageway 7;

[0029] Referring to Figure 3 As shown, when discharging mechanism 2 is installed on work bin 1, discharging sealing plug 9 and feed sealing plug 10 are pressed up and down, feed sealing plug 10 moves downward under the thrust of discharging sealing plug 9 to open feed passageway 8, until feed sealing plug 10 moves to the lowest position, the elastic force reaches the maximum value and moves a certain distance upward to push discharging sealing plug 9 upward, and discharging sealing plug 9 moves upward under the reverse thrust of feed sealing plug 10 to open discharging passageway 7, so that discharging cavity 21 and work bin 1 are communicated with each other, and the powder in discharging cavity 21 can flow smoothly into work bin 1.

[0030] Referring to Figures 4-6 As shown, when discharging mechanism 2 is detached from work bin 1, discharging sealing plug 9 and feed sealing plug 10 gradually separate, and discharging sealing plug 9 elastically moves downward under the action of its own elastic force to reset to close discharging passageway 7, and feed sealing plug 10 elastically moves upward under the action of its own elastic force to reset to close feed passageway 8, so that the sealing effect is better, and the dust raising condition is avoided.

[0031] In summary, the discharging device of the utility model does not need to set valve, and the opening and closing of the passageway between discharging mechanism 2 and work bin 1 do not need to be manually operated, and can be automatically completed by discharging sealing plug 9 and feed sealing plug 10, so that the operation process is more simple and convenient, the overall working efficiency is improved, the double closed structure of discharging passageway 7 and feed passageway 8 is arranged, so that the sealing effect is better, and the dust raising condition is avoided.

[0032] Of course, the discharging device of the utility model can also be used for other discharging equipment except laser selective metal 3D printer, which is not limited here.

[0033] In the embodiment, the first elastic member 11 is arranged outside the discharging sealing plug 9 to provide elastic force for the downward movement of the discharging sealing plug 9, and the second elastic member 12 is arranged outside the feeding sealing plug 10 to provide elastic force for the upward movement of the feeding sealing plug 10. The elastic force of the second elastic member 12 is smaller than that of the first elastic member 11, so that when the discharging mechanism 2 is installed on the working bin 1, the feeding channel 8 is opened first, and then the discharging channel 7 is opened, so that the powder in the discharging mechanism 2 can fall freely. When the discharging mechanism 2 is detached from the working bin 1, the discharging channel 7 is closed first, and then the feeding channel 8 is opened, so as to avoid the upward flow of the powder. Specifically, the first elastic member 11 and the second elastic member 12 are compression springs.

[0034] In the embodiment, the feeding channel 8 includes an upper feeding channel 81 and a lower feeding channel 82, and a feeding sealing port is arranged between the upper feeding channel 81 and the lower feeding channel 82. A feeding support frame 13 is arranged in the lower feeding channel 82. The feeding sealing plug 10 includes a feeding plug head 101 and a feeding plug rod 102 connected in sequence. The second elastic member 12 is arranged outside the feeding plug rod 102. The feeding plug rod 102 is arranged in the feeding support frame 13, and the upper and lower ends of the second elastic member 12 are respectively abutted with the feeding plug head 101 and the support frame. The feeding plug head 101 is used for movably sealing the feeding sealing port.

[0035] Specifically, the base 5 includes an upper base 51, a feeding sealing plate 52, and a lower base 53 connected in sequence. The upper feeding channel 81 is arranged inside the upper base 51, and the lower feeding channel 82 is arranged inside the lower base 53. The feeding sealing port includes a first feeding sealing port 14 and a second feeding sealing port 15. The diameter of the first feeding sealing port 14 is smaller than that of the second feeding sealing port 15. The first feeding sealing port 14 is arranged in the feeding sealing plate 52, and the second feeding sealing port 15 is arranged at the top of the lower feeding channel 82. The diameter of the feeding plug head 101 gradually increases from top to bottom. The feeding plug head 101 is used for synchronously movably sealing the first feeding sealing port 14 and the second feeding sealing port 15, so as to further improve the sealing stability of the feeding sealing plug 10 to the feeding channel 8.

[0036] In the embodiment, the upper feeding channel 81 includes a cylindrical channel and a conical channel connected in sequence, so as to improve the smoothness of the powder in the upper feeding channel 81.

[0037] In the embodiment, the lower part of the discharging cavity 21 is a conical cavity, the diameter of which gradually decreases from top to bottom, a discharging seal is arranged between the discharging cavity 21 and the discharging passage 7, a discharging support frame 18 is arranged in the discharging passage 7, the discharging sealing plug 9 comprises a discharging plug head 91, a discharging plug rod 92 and a discharging push block 93 which are connected in sequence, the discharging plug rod 92 is arranged in the discharging support frame 18, the first elastic member 11 is sleeved on the outer part of the discharging plug rod 92, and the upper and lower ends of the first elastic member 11 are respectively abutted with the discharging support frame 18 and the discharging push block 93, and the discharging plug head 91 is used for movably sealing the discharging seal.

[0038] In the embodiment, the discharging plug head 91 comprises a top material cone and a sealing cone which are integrally formed in sequence, the diameter of the top material cone gradually increases from top to bottom, the diameter of the sealing cone gradually decreases from top to bottom, the top material cone is arranged in the discharging cavity 21, and the sealing cone is arranged in the discharging seal to movably seal the discharging seal, and the structure of the top material cone can reduce the resistance of the discharging plug head 91 and ensure the smooth opening of the discharging seal.

[0039] In the embodiment, the discharging sealing plate 19 is arranged between the fixed seat 6 and the discharging mechanism 2, the discharging seal comprises a first discharging seal 16 and a second discharging seal 17 which are arranged in sequence, the diameter of the first discharging seal 16 is greater than that of the second discharging seal 17, the first discharging seal 16 is the cavity opening of the discharging cavity 21 which is close to the discharging passage 7, the second discharging seal 17 is arranged in the discharging sealing plate 19, and the sealing cone is used for synchronously movably sealing the first discharging seal 16 and the second discharging seal 17.

[0040] In the embodiment, the outer part of the fixed seat 6 is connected with the cylindrical sleeve 3, the cylindrical sleeve 3 is limitingly sleeved on the outer part of the base 5, so as to improve the installation stability of the discharging mechanism 2.

[0041] In the embodiment, the fixed frame 4 is arranged on the working bin 1, the fixed frame 4 comprises a square frame and support feet which are connected below the four corners of the square frame, the discharging mechanism 2 is clamped and limited in the square frame, so as to further improve the installation stability of the discharging mechanism 2.

[0042] Although the utility model is specifically shown and introduced in combination with the preferred embodiment, those skilled in the art should understand that various changes can be made to the utility model in form and details without departing from the spirit and scope of the utility model defined in the appended claims, and all fall within the protection scope of the utility model.

Claims

1. A feeding device, characterized in that: The device includes a working chamber and a feeding mechanism with a feeding cavity. A base is fixedly installed on the top of the working chamber, and a feeding channel is provided inside the base. A fixed seat is fixedly installed on the bottom of the feeding mechanism, and a feeding channel is provided inside the fixed seat. The feeding mechanism can be detachably installed on the working chamber by docking the fixed seat with the base. The feeding cavity and the working chamber are connected by the feeding channel and the feeding channel. A feeding sealing plug that can move up and down elastically is provided in the feeding channel, and a feeding sealing plug that can move up and down elastically is provided in the feeding channel. When the feeding mechanism is installed on the working chamber, the feeding sealing plug and the feeding sealing plug are squeezed together. The feeding sealing plug moves downward under the pushing force of the feeding sealing plug to open the feeding channel, and the feeding sealing plug moves upward under the reverse pushing force of the feeding sealing plug to open the feeding channel. When the feeding mechanism is detached from the working chamber, the feeding sealing plug and the infeed sealing plug gradually separate. The feeding sealing plug moves downward elastically under its own elastic force to reset and close the feeding channel, while the infeed sealing plug moves upward elastically under its own elastic force to reset and close the infeed channel.

2. The feeding device according to claim 1, characterized in that: The outer side of the discharge sealing plug is fitted with a first elastic element to provide a downward elastic force for the discharge sealing plug, and the outer side of the feed sealing plug is fitted with a second elastic element to provide an upward elastic force for the feed sealing plug. The elastic force of the second elastic element is less than that of the first elastic element.

3. The feeding device according to claim 2, characterized in that: The feeding channel includes an upper feeding channel and a lower feeding channel. A feeding seal is provided between the upper feeding channel and the lower feeding channel. A feeding support frame is provided in the lower feeding channel. The feeding sealing plug includes a feeding plug head and a feeding plug rod connected at the top and bottom. A second elastic element is sleeved on the outside of the feeding plug rod. The feeding plug rod is installed through the feeding support frame. The upper and lower ends of the second elastic element abut against the feeding plug head and the support frame, respectively. The feeding plug head is used to movably seal the feeding seal.

4. The feeding device according to claim 3, characterized in that: The base includes an upper base, a feed sealing plate, and a lower base connected in sequence. The upper feed channel is located inside the upper base, and the lower feed channel is located inside the lower base. The feed seal includes a first feed seal and a second feed seal, and the diameter of the first feed seal is smaller than the diameter of the second feed seal. The first feed seal is located inside the feed sealing plate, and the second feed seal is located at the top port of the lower feed channel. The diameter of the feed plug gradually increases from top to bottom. The feed plug is used to simultaneously and dynamically seal the first feed seal and the second feed seal.

5. The feeding device according to claim 3, characterized in that: The upper feed channel includes a cylindrical channel and a conical channel that are connected vertically.

6. The feeding device according to claim 2, characterized in that: The lower part of the feeding chamber is a conical cavity with a diameter that gradually decreases from top to bottom. A feeding seal is provided between the feeding chamber and the feeding channel. A feeding support frame is provided inside the feeding channel. The feeding seal includes a feeding plug head, a feeding plug rod, and a feeding push block connected at the top and bottom. The feeding plug rod is installed through the feeding support frame, and a first elastic element is sleeved on the outside of the feeding plug rod. The upper and lower ends of the first elastic element abut against the feeding support frame and the feeding push block, respectively. The feeding plug head is used to movably seal the feeding seal.

7. The feeding device according to claim 6, characterized in that: The feeding plug includes an integrally formed top cone and a sealing cone. The diameter of the top cone gradually increases from top to bottom, while the diameter of the sealing cone gradually decreases from top to bottom. The top cone is located inside the feeding cavity, and the sealing cone is installed through the feeding opening to perform movable sealing of the feeding opening.

8. The feeding device according to claim 7, characterized in that: A feeding sealing plate is provided between the fixed base and the feeding mechanism. The feeding seal includes a first feeding seal and a second feeding seal distributed vertically. The diameter of the first feeding seal is larger than the diameter of the second feeding seal. The first feeding seal is the opening of the feeding cavity near the feeding channel. The second feeding seal is located inside the feeding sealing plate. The sealing cone is used to simultaneously and dynamically seal the first feeding seal and the second feeding seal.

9. The feeding device according to claim 1, characterized in that: The fixed base has an external cylindrical sleeve, which is fitted around the outside of the base for limiting.

10. The feeding device according to claim 1, characterized in that: The working chamber is equipped with a fixed frame, which includes a square frame and support legs connected to the four corners of the square frame. The unloading mechanism is locked and limited within the square frame.

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