A self-guiding and elastic self-sealing device for a material box

Abstract

The present invention discloses a material box self-guiding and elastic self-sealing device, which relates to the technical field of 3D printing raw material material boxes, comprising a material box and a bottom plate arranged inside the material box, and also comprising: a lifting mechanism, which is installed inside the material box and is used to drive the bottom plate to be lifted and lowered; an elastic self-sealing mechanism, which is arranged on the outside of the bottom plate and is used to seal the gap between the bottom plate and the material box; a self-guiding mechanism, which is installed at the bottom of the bottom plate and is used to guide the lifting and lowering of the bottom plate; the material box self-guiding and elastic self-sealing device, when the bottom plate moves upward, drives the upper and lower layers of spring sheets to move synchronously along the inner wall of the material box, when the spring sheets abut against the uneven inner wall of the material box, the spring sheets automatically deform, and after passing through the uneven inner wall of the material box, they automatically rebound and reset, thereby achieving the effect of elastic self-sealing and solving the problem that it is difficult to ensure the sealing due to the uneven inner wall of the material box.

Description

Technical Field

[0001] The invention relates to the technical field of 3D printing raw material boxes, and in particular to a self-guiding and elastic self-sealing device for a box. Background Art

[0002] The abrasive materials needed for 3D printing are stored in a material box. When in use, the bottom plate inside the material box is pushed up to drive the abrasive materials on the top of the bottom plate to move up for easy use.

[0003] Due to the large size of the material box, it is difficult to ensure that its inner wall is completely flat, and slight deformation will occur. The bottom plate inside the material box cannot completely seal the bottom of the sand, which is prone to large-scale leakage. Therefore, a self-sealing structure is needed to prevent large-scale leakage of sand on the top of the bottom plate. Summary of the invention

[0004] The object of the present invention is to provide a self-guiding and elastic self-sealing device for a material box to solve the above-mentioned deficiencies in the prior art.

[0005] In order to achieve the above object, the present invention provides the following technical solution: a material box self-guiding and elastic self-sealing device, comprising a material box and a bottom plate arranged inside the material box, and also comprising:

[0006] A lifting mechanism, which is installed inside the material box and is used to drive the bottom plate to rise and fall;

[0007] An elastic self-sealing mechanism, which is arranged on the outer side of the bottom plate and is used to seal the gap between the bottom plate and the material box;

[0008] A self-guiding mechanism, which is installed at the bottom of the base plate and is used to guide the lifting and lowering of the base plate;

[0009] The self-discharging mechanism is installed on the bottom plate and connected with the elastic self-sealing mechanism, and is used for discharging the raw materials entering the elastic self-sealing mechanism in a directional manner.

[0010] Further, the lifting mechanism includes two bidirectional screws rotatably connected to the inside of the material box, two driving blocks arranged below the bottom plate, and a driving assembly for driving the two bidirectional screws to rotate synchronously;

[0011] The two driving blocks are both screwed to the outside of the two bidirectional screws;

[0012] Both ends of the two driving blocks are hinged with driving rods, and the top ends of the driving rods are hinged to the bottom of the bottom plate;

[0013] One end of the two bidirectional screws extends to the outside of the material box.

[0014] Furthermore, the driving assembly includes a motor mounted on an outer wall of one side of the material box and two transmission members mounted outside the output shaft of the motor, and the two transmission members are respectively connected to the two bidirectional screws in a driving manner;

[0015] The transmission member comprises two synchronous wheels which are respectively fixedly sleeved on the outside of the motor output shaft and the outside of the bidirectional screw and a synchronous belt which is transmission-connected to the outside of the two synchronous wheels.

[0016] Furthermore, the elastic self-sealing mechanism is provided with two, and the two elastic self-sealing mechanisms are arranged in sequence from top to bottom;

[0017] The elastic self-sealing mechanism comprises four grooves respectively formed on the outer walls of the four sides of the bottom plate and springs installed in the grooves;

[0018] The inner angle of the spring is 100°-120°;

[0019] One end of the spring piece abuts against the inner wall of the material box.

[0020] Furthermore, a rubber sheet is installed on the top of the elastic sheet located at the top, and the rubber sheet is also fixedly connected to the outer side wall of the bottom plate.

[0021] Further, the self-guiding mechanism includes a plurality of bearing seats mounted on the bottom of the base plate and bearings mounted inside the bearing seats;

[0022] The outer ring of the bearing abuts against the inner wall of the material box.

[0023] Furthermore, the self-discharging mechanism includes four, and the self-discharging mechanism includes a material guide trough opened inside the bottom plate, two augers rotatably connected inside the material guide trough, and two linkage components for driving the two augers to rotate respectively;

[0024] A material discharge trough is provided at the bottom of the spring sheet located below, and the material discharge trough is communicated with the material guide trough.

[0025] Further, the linkage assembly includes a one-way gear mounted on the outside of the auger and a rack fixed to the top of the material box;

[0026] The rack is slidably arranged through the bottom plate;

[0027] The one-way gear is meshed with the rack.

[0028] Furthermore, a discharge trough is provided at the bottom of the bottom plate, the discharge trough is connected with the material guide trough, and the discharge trough is located between the two augers;

[0029] A telescopic cylinder is also installed at the bottom of the bottom plate, the telescopic cylinder is communicated with the material discharge chute, and the bottom end of the telescopic cylinder extends to the outside of the material box and is fixedly connected to the bottom of the material box.

[0030] Compared with the prior art, the self-guiding and elastic self-sealing device for a material box provided by the present invention has the following beneficial effects:

[0031] When the bottom plate moves upward, it drives the upper and lower layers of spring sheets to move synchronously along the inner wall of the material box. When the spring sheets contact the uneven inner wall of the material box, they automatically deform and automatically rebound and reset after passing through the uneven inner wall of the material box, achieving the effect of elastic self-sealing and solving the problem that it is difficult to ensure sealing due to the uneven inner wall of the material box.

[0032] When the bottom plate moves, the bearings in all directions move synchronously along the inner wall of the material box, and the outer part of the bearing rotates with the inner wall of the material box to achieve a self-guiding effect on the bottom plate, further ensuring the self-sealing effect of the bottom plate when moving. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0034] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0035] Figure 2 It is a schematic diagram of the internal structure of the material box of the present invention;

[0036] Figure 3 It is a schematic diagram of the structure of the elastic self-sealing mechanism of the present invention;

[0037] Figure 4 It is a schematic cross-sectional view of the elastic self-sealing mechanism structure of the present invention;

[0038] Figure 5 For the present invention Figure 4 A schematic diagram of the structure enlargement in the middle;

[0039] Figure 6 It is a schematic diagram of the linkage assembly structure of the present invention;

[0040] Figure 7 It is a schematic diagram of the structure of the lifting mechanism and the self-guiding mechanism of the present invention.

[0041] Description of reference numerals:

[0042] 1. Material box; 2. Bottom plate; 3. Bidirectional screw; 4. Driving block; 5. Driving rod; 6. Motor; 7. Transmission parts; 8. Shrapnel; 9. Rubber sheet; 10. Bearing seat; 11. Bearing; 12. Material guide trough; 13. Auger; 14. Material discharge trough; 15. One-way gear; 16. Rack; 17. Discharge trough; 18. Telescopic cylinder; 19. Groove. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Example: See Figure 1 - Figure 7 A self-guiding and elastic self-sealing device for a material box, comprising a material box 1 and a bottom plate 2 arranged inside the material box 1, and further comprising:

[0045] A lifting mechanism is installed inside the material box 1 and is used to drive the bottom plate 2 to lift. The lifting mechanism includes two bidirectional screws 3 rotatably connected to the inside of the material box 1, two driving blocks 4 arranged under the bottom plate 2 and a driving assembly for driving the two bidirectional screws 3 to rotate synchronously; the two driving blocks 4 are screwed to the outside of the two bidirectional screws 3; both ends of the two driving blocks 4 are hinged with driving rods 5, and the top of the driving rod 5 is hinged to the bottom of the bottom plate 2; one end of the two bidirectional screws 3 extends to the outside of the material box 1, and the driving assembly includes a motor 6 installed on the outer wall of one side of the material box 1 and two transmission members 7 installed outside the output shaft of the motor 6, and the two transmission members 7 are respectively connected to the two bidirectional screws 3 in transmission; the transmission member 7 includes two synchronous wheels fixedly sleeved on the outside of the output shaft of the motor 6 and the outside of the bidirectional screw 3, and a synchronous belt connected to the outside of the two synchronous wheels in transmission;

[0046] When the raw material on the top of the bottom plate 2 needs to be driven to move upward, the motor 6 is controlled to drive its output shaft to rotate forward, and the two bidirectional screws 3 are driven to rotate synchronously through the transmission connection of the two transmission members 7, thereby driving the two driving blocks 4 to move away from each other, thereby driving the bottom plate 2 and the raw material on the top of it to move upward through the driving rod 5;

[0047] By controlling the motor 6 to drive its output shaft to reverse, the two transmission members 7 are connected to drive the two bidirectional screws 3 to rotate synchronously, thereby driving the two drive blocks 4 to approach each other, thereby driving the bottom plate 2 to move downward through the drive rod 5.

[0048] An elastic self-sealing mechanism is arranged on the outer side of the bottom plate 2 and is used to seal the gap between the bottom plate 2 and the material box 1. Two elastic self-sealing mechanisms are provided, and the two elastic self-sealing mechanisms are arranged in sequence from top to bottom; the elastic self-sealing mechanism includes four grooves 19 respectively opened on the outer walls of the four sides of the bottom plate 2 and a spring 8 installed inside the groove 19; the inner side angle of the spring 8 is 100°-120°; one end of the spring 8 abuts against the inner wall of the material box 1;

[0049] When the bottom plate 2 moves upward, it drives the upper and lower layers of spring sheets 8 to move synchronously along the inner wall of the material box 1. When the spring sheets 8 abut against the uneven inner wall of the material box 1, the spring sheets 8 automatically deform, and when passing through the uneven inner wall of the material box 1, they automatically rebound and reset, achieving an elastic self-sealing effect.

[0050] A rubber sheet 9 is installed on the top of the spring sheet 8, and the rubber sheet 9 is also fixedly connected to the outer side wall of the bottom plate 2;

[0051] The rubber sheet 9 is provided to prevent the raw material from entering the inner side of the spring sheet 8 and the inside of the groove 19, and further prevent the spring sheet 8 from being deformed when the inner side of the spring sheet 8 and the inside of the groove 19 are filled with raw material;

[0052] Since the upper and lower layers of spring sheets 8 are provided, when the upper spring sheet 8 is deformed, the rubber sheet 9 automatically contracts, so that when the raw material is put into the inner side of the spring sheet 8, the deformation of the spring sheet 8 is not affected.

[0053] A self-guiding mechanism is installed at the bottom of the bottom plate 2 and is used to guide the lifting of the bottom plate 2. The self-guiding mechanism includes a plurality of bearing seats 10 installed at the bottom of the bottom plate 2 and a bearing 11 installed inside the bearing seat 10; the outer ring of the bearing 11 abuts against the inner wall of the material box 1;

[0054] When the bottom plate 2 moves, the bearings 11 in all directions move synchronously along the inner wall of the material box 1 , and the outer parts of the bearings 11 rotate along with the inner wall of the material box 1 , thereby achieving a self-guiding effect on the bottom plate 2 .

[0055] The self-discharging mechanism is installed on the bottom plate 2 and connected to the elastic self-sealing mechanism, and is used to directional discharge the raw materials entering the elastic self-sealing mechanism. The self-discharging mechanism includes four, the self-discharging mechanism includes a guide groove 12 opened inside the bottom plate 2, two screw dragons 13 rotatably connected inside the guide groove 12, and two linkage components for driving the two screw dragons 13 to rotate respectively. When each screw dragon 13 rotates, it transports the raw materials toward the discharge groove 17; the bottom of the spring sheet 8 located below is provided with a discharge groove 14, and the discharge groove 14 is connected to the guide groove 12. The two guide grooves 12 are connected, and the linkage assembly includes a one-way gear 15 installed on the outside of the auger 13 and a rack 16 fixed to the top of the material box 1; the rack 16 slides through the bottom plate 2; the one-way gear 15 is meshed with the rack 16, and a discharge groove 17 is opened at the bottom of the bottom plate 2, and the discharge groove 17 is connected to the guide groove 12, and the discharge groove 17 is located between the two augers 13; a telescopic cylinder 18 is also installed at the bottom of the bottom plate 2, and the telescopic cylinder 18 is connected to the discharge groove 17, and the bottom end of the telescopic cylinder 18 extends to the outside of the material box 1 and is fixed to the bottom of the material box 1;

[0056] When the bottom plate 2 moves upward and the upper spring sheet 8 is deformed, a small amount of raw materials will enter the inner side of the lower spring sheet 8 through the gap between the spring sheet 8 and the inner wall of the material box 1, and enter the guide trough 12 through the discharge trough 14. When the bottom plate 2 moves upward, the auger 13 and the one-way gear 15 outside it move upward synchronously. In this process, the auger 13 is driven to rotate through the meshing effect between the one-way gear 15 and the rack 16, and the raw materials entering the guide trough 12 are transported toward the discharge trough 17. Finally, the raw materials fall into the discharge trough 17 and are discharged through the telescopic cylinder 18, so as to prevent the raw materials from accumulating on the inner side of the lower spring sheet 8 and the groove 19.

[0057] When the bottom plate 2 moves downward, the one-way gear 15 is meshed with the rack 16 to drive the one-way gear 15 to rotate, but the auger 13 does not rotate accordingly. Therefore, the auger 13 only rotates in one direction, so that the raw materials can only be transported toward the inside of the discharge trough 17.

[0058] Working principle: When in use, the output shaft of the motor 6 is driven to rotate forward by controlling the motor 6, and the two transmission members 7 are used to drive the two bidirectional screws 3 to rotate synchronously, thereby driving the two driving blocks 4 to move away from each other, thereby driving the bottom plate 2 and the raw materials on its top to move upward through the driving rod 5. When the bottom plate 2 moves upward, it drives the upper and lower layers of spring sheets 8 to move synchronously along the inner wall of the material box 1. When the spring sheets 8 abut against the uneven inner wall of the material box 1, the spring sheets 8 automatically deform, and when passing through the uneven inner wall of the material box 1, they automatically rebound and reset, achieving the effect of elastic self-sealing. When the bottom plate 2 moves, the bearings 11 in all directions move synchronously along the inner wall of the material box 1, and the outer part of the bearing 11 rotates with the inner wall of the material box 1. A self-guiding effect is achieved on the bottom plate 2. In addition, when the bottom plate 2 moves upward and the upper spring piece 8 is deformed, a small amount of raw materials will enter the inner side of the lower spring piece 8 through the gap between the spring piece 8 and the inner wall of the material box 1, and enter the guide trough 12 through the discharge trough 14. When the bottom plate 2 moves upward, the auger 13 and the one-way gear 15 outside it move upward synchronously. In this process, the auger 13 is driven to rotate through the meshing effect between the one-way gear 15 and the rack 16, and the raw materials entering the guide trough 12 are transported toward the discharge trough 17. Finally, the raw materials fall into the discharge trough 17 and are discharged through the telescopic cylinder 18 to prevent the raw materials from accumulating on the inner side of the lower spring piece 8 and the groove 19.

[0059] It should be noted that the device structure and drawings of the present invention mainly describe the principle of the present invention. In terms of the technology of the design principle, the settings of the power mechanism, power supply system and control system of the device are not fully described. On the premise that the technical personnel in the field understand the principle of the above invention, the specific details of the power mechanism, power supply system and control system can be clearly known. The control method of the application document is to automatically control by a controller, and the control circuit of the controller can be realized by simple programming by the technical personnel in the field; the above only describes some exemplary embodiments of the present invention by way of explanation. Undoubtedly, for ordinary technicians in the field, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

[0060] In the description of the present invention, it is necessary to understand that the orientations or positional relationships indicated by “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0061] In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. In addition, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

Claims

1. A self-guiding and elastic self-sealing device for a material box, comprising a material box (1) and a bottom plate (2) arranged inside the material box (1), characterized in that: Also includes: A lifting mechanism, which is installed inside the material box (1) and is used to drive the bottom plate (2) to move up and down; An elastic self-sealing mechanism, which is arranged on the outer side of the bottom plate (2) and is used to seal the gap between the bottom plate (2) and the material box (1), wherein two elastic self-sealing mechanisms are provided and the two elastic self-sealing mechanisms are arranged in sequence from top to bottom, and the elastic self-sealing mechanism comprises four grooves (19) respectively formed on the outer walls of four sides of the bottom plate (2) and springs (8) installed inside the grooves (19); A self-guiding mechanism, which is installed at the bottom of the base plate (2) and is used to guide the lifting and lowering of the base plate (2); A self-discharging mechanism, which is mounted on the bottom plate (2) and connected to the elastic self-sealing mechanism, and is used to directionally discharge the raw materials that have entered the elastic self-sealing mechanism; The self-discharging mechanism comprises four, the self-discharging mechanism comprising a material guide trough (12) provided inside the bottom plate (2), two augers (13) rotatably connected inside the material guide trough (12), and two linkage components for respectively driving the two augers (13) to rotate; A material discharge chute (14) is provided at the bottom of the spring sheet (8) located below, and the material discharge chute (14) is connected to the material guide chute (12); The linkage assembly comprises a one-way gear (15) mounted on the outside of the auger (13) and a rack (16) fixed to the top of the material box (1); The rack (16) is slidably arranged to penetrate the bottom plate (2); The one-way gear (15) is meshed with the rack (16); A discharge trough (17) is provided at the bottom of the base plate (2), the discharge trough (17) is connected to the material guide trough (12), and the discharge trough (17) is located between the two augers (13); A telescopic cylinder (18) is also installed at the bottom of the base plate (2), the telescopic cylinder (18) is connected to the material discharge chute (17), and the bottom end of the telescopic cylinder (18) extends to the outside of the material box (1) and is fixedly connected to the bottom of the material box (1).

2. A self-guiding and elastic self-sealing device for a material box according to claim 1, characterized in that: The lifting mechanism comprises two bidirectional screws (3) rotatably connected to the inside of the material box (1), two driving blocks (4) arranged below the bottom plate (2), and a driving assembly for driving the two bidirectional screws (3) to rotate synchronously; The two driving blocks (4) are both screwed onto the outside of the two bidirectional screw rods (3); Both ends of the two driving blocks (4) are hingedly connected to driving rods (5), and the top ends of the driving rods (5) are hingedly connected to the bottom of the bottom plate (2); One end of each of the two bidirectional screws (3) extends to the outside of the material box (1).

3. A self-guiding and elastic self-sealing device for a material box according to claim 2, characterized in that: The driving assembly comprises a motor (6) mounted on an outer wall of one side of the material box (1) and two transmission members (7) mounted outside the output shaft of the motor (6), the two transmission members (7) being respectively connected to the two bidirectional screws (3); The transmission member (7) comprises two synchronous wheels which are respectively fixedly sleeved on the outside of the output shaft of the motor (6) and the outside of the bidirectional screw (3), and a synchronous belt which is transmission-connected to the outside of the two synchronous wheels.

4. A self-guiding and elastic self-sealing device for a material box according to claim 3, characterized in that: The inner side angle of the spring sheet (8) is 100°-120°; One end of the spring sheet (8) abuts against the inner wall of the material box (1).

5. A self-guiding and elastic self-sealing device for a material box according to claim 4, characterized in that: A rubber sheet (9) is installed on the top of the elastic sheet (8) located at the top, and the rubber sheet (9) is also fixedly connected to the outer side wall of the bottom plate (2).

6. A self-guiding and elastic self-sealing device for a material box according to claim 5, characterized in that: The self-guiding mechanism comprises a plurality of bearing seats (10) mounted on the bottom of the base plate (2) and bearings (11) mounted inside the bearing seats (10); The outer ring of the bearing (11) abuts against the inner wall of the material box (1).

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