Weighing device for 3D printer resin bottle

Abstract

The utility model discloses a weighing device for a 3D printer resin bottle, and the key points of the technical scheme are that the weighing device comprises a placing shell used for placing the resin bottle, a weighing sensor is arranged on a bottom plate of the placing shell, one end of the weighing sensor is fixed on the bottom plate of the placing shell through a first bolt, and the other end of the weighing sensor is fixed on the bottom plate of the placing shell through a second bolt. A weighing plate is fixed to the other end of the base through a second bolt, and the resin bottle is placed on the weighing plate. The weighing plate comprises a first weighing plate and a second weighing plate arranged on the first weighing plate, the second weighing plate is connected with the first weighing plate through bolts, the first weighing plate is a sheet metal part, and the second weighing plate is a plastic part. The weighing device of the 3D printer resin bottle can measure and display the remaining amount of raw materials in the resin bottle in real time, a user can conveniently add or replace the resin bottle in time under the condition that the printing raw materials are not enough, and the situation that machine halt is caused and printing efficiency is reduced due to the fact that the printing raw materials are not enough is avoided.

Description

Technical Field

[0001] The utility model relates to a weighing device for a resin bottle of a 3D printer. Background Art

[0002] 3D printing has brought about a worldwide manufacturing revolution, enabling enterprises to no longer consider production processes when manufacturing components. Any complex-shaped design can be achieved through a 3D printer. 3D printing can directly generate an object of any shape from computer graphic data without mechanical processing or a mold, thus greatly shortening the production cycle of products and improving productivity. 3D printing technology is bound to become one of the many breakthrough technologies in future manufacturing.

[0003] A 3D printer is a cumulative manufacturing technology, that is, a machine of rapid prototyping technology. It is based on a digital model file and uses special wax materials, powdered metals, resins, and other bondable materials to manufacture products by printing layers of bondable materials.

[0004] Currently, existing 3D resin printers have the following disadvantages: Since the resin bottle is installed inside the printer and it is impossible to directly observe the remaining amount of the printing raw material in the resin bottle, it may occur that the printing needs to be paused to replace the resin bottle due to the lack of printing raw material in the resin bottle during printing, resulting in low efficiency. Content of the Utility Model

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a weighing device for a resin bottle of a 3D printer, which can measure and display the remaining amount of the printing raw material in the resin bottle in real time.

[0006] The utility model is realized by the following technical solutions:

[0007] A weighing device for a resin bottle of a 3D printer, characterized in that: it includes a placement shell 1 for placing the resin bottle 3, a weighing sensor 2 is provided on the bottom plate of the placement shell 1, one end of the weighing sensor 2 is fixed on the bottom plate of the placement shell 1 through a first bolt 6, and the other end is fixed with a weighing plate through a second bolt 7, and the resin bottle 3 is placed on the weighing plate.

[0008] The weighing device for a resin bottle of a 3D printer as described above, characterized in that: the weighing plate includes a first weighing plate 4 and a second weighing plate 5 placed on the first weighing plate 4. The second weighing plate 5 is connected to the first weighing plate 4 by bolts. The first weighing plate 4 is a sheet metal part, and the second weighing plate 5 is a plastic part.

[0009] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: a first positioning hole 8 for positioning the resin bottle 3 is provided on the second weighing plate 5, a positioning post 9 is provided on the first positioning hole 8, a fixing block 10 is provided between the first weighing plate 4 and the weighing sensor 2, the second bolt 7 passes through the fixing block 10 and is tightened on the first weighing plate 4, second positioning holes 12 are respectively provided on both sides of the first positioning hole 8 on the second weighing plate 5, and a third positioning hole 11 for positioning the second weighing plate 5 is provided on the first weighing plate 4.

[0010] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: a pin assembly 13 that passes upward through the second positioning hole is fixed on the first weighing plate 4, a suction hole is provided on the pin assembly 13, and the pin assembly 13 is fixed on the first weighing plate 4 by bolts.

[0011] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: a support plate 14 for supporting the bottom plate of the placement shell 1 is provided on the bottom surface of the placement shell 1, a plurality of rib plates 15 are provided on the side surface of the placement shell 1, the rib plates 15 and the placement shell 1 are integral parts and extend from the bottom plate of the placement shell 1, a nut limiting groove 16 is provided on the rib plates 15, the support plate 14 is fixedly connected to the rib plates 15 through a third bolt 17, and the third bolt 17 passes upward through the support plate 14 and the rib plates 15 and is tightened with the nut in the nut limiting groove 16.

[0012] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: the support plate 14 is a sheet metal part and has a bending part, and the bending part is fixed on the machine plate 19 through a plurality of fourth bolts 18.

[0013] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: the weighing sensor 2 is connected to the PCB control board 20 through wires, the PCB control board 20 is in turn connected to the display screen through wires, and the PCB control board 20 is provided on the machine plate 19.

[0014] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: the placement shell 1 is fixed on the machine plate 19 through a plurality of fifth bolts 21.

[0015] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: a handle groove 22 for conveniently grasping the resin bottle 3 is provided on the top of the placement shell 1.

[0016] The weighing device for the resin bottle of the 3D printer as described above is characterized in that: the placement shell 1 is made of plastic and is integrally injection-molded.

[0017] Compared with the prior art, the present utility model has the following advantages:

[0018] The weighing device of the resin bottle of the utility model 3D printer can measure and display the remaining amount of raw materials in the resin bottle in real time, which is convenient for users to add or replace the resin bottle in time when they know that the printing raw materials are insufficient, avoiding downtime caused by insufficient printing raw materials and reducing the printing efficiency. Brief Description of the Drawings

[0019] Figure 1 is one of the perspective views of the utility model;

[0020] Figure 2 is the second perspective view of the utility model;

[0021] Figure 3 is the exploded view of the utility model;

[0022] Figure 4 is the perspective view of the 3D printer of the utility model;

[0023] Figure 5 is the exploded view of the 3D printer of the utility model.

[0024] In the figure: 1 is the placement shell; 2 is the weighing sensor; 3 is the resin bottle; 4 is the first weighing plate; 5 is the second weighing plate; 6 is the first bolt; 7 is the second bolt; 8 is the first positioning hole; 9 is the positioning post; 10 is the fixing block; 11 is the third positioning hole; 12 is the second positioning hole; 13 is the pin assembly; 14 is the support plate; 15 is the rib plate; 16 is the nut limiting groove; 17 is the third bolt; 18 is the fourth bolt; 19 is the machine board; 20 is the PCB control board; 21 is the fifth bolt; 22 is the gripper groove; 23 is the machine shell. Detailed Description of the Preferred Embodiment

[0025] The technical features of the present utility model will be further described in detail below with reference to the drawings so that those skilled in the art can understand.

[0026] A weighing device for a resin bottle of a 3D printer, as Figures 1 to 5 shown, includes a placement shell 1 for placing the resin bottle 3, a weighing sensor 2 is provided on the bottom plate of the placement shell 1, one end of the weighing sensor 2 is fixed to the bottom plate of the placement shell 1 through the first bolt 6, and the other end is fixed with a weighing plate through the second bolt 7, and the resin bottle 3 is placed on the weighing plate.

[0027] The bottom plate of the placement shell 1 is largely hollowed out. The weighing sensor 2 is similar to a lever, one end is indirectly fixed to the bottom plate of the placement shell 1, and the other end is fixed to the weighing plate, so as to weigh the weight of the resin bottle 3, and then through programming conversion, calculate the volume of the printing raw materials in the resin bottle 3, and finally display it on the display screen.

[0028] The weighing sensor 2 is connected to the PCB control board 20 through wires, and the PCB control board 20 is connected to the display screen through wires. The PCB control board 20 is arranged on the motherboard 19. The motherboard 19 is arranged inside the housing 23 of the 3D printer and is used to install various accessories. The placement shell 1 is fixed on the motherboard 19 by a plurality of fifth bolts 21, and an inner cavity for placing the resin bottle 3 is formed between the placement shell 1 and the motherboard 19.

[0029] The weighing plate includes a first weighing plate 4 and a second weighing plate 5 placed on the first weighing plate 4. The second weighing plate 5 is connected to the first weighing plate 4 by bolts. The first weighing plate 4 is made of sheet metal, and the second weighing plate 5 is made of plastic. Due to its relatively complex structure and large thickness, the weighing plate cannot be a single sheet metal part, otherwise it will be difficult to process and greatly increase the cost. Nor can it be a single plastic part, because after the resin bottle 3 is placed, the plastic part is prone to deformation, resulting in an uneven or inclined surface, which affects the accuracy of weighing.

[0030] A first positioning hole 8 for positioning the resin bottle 3 is provided on the second weighing plate 5. A positioning post 9 is provided on the first positioning hole 8. A fixing block 10 is provided between the first weighing plate 4 and the weighing sensor 2. The second bolt 7 passes through the fixing block 10 and is tightened on the first weighing plate 4. Second positioning holes 12 are respectively provided on both sides of the first positioning hole 8 on the second weighing plate 5, and a third positioning hole 11 for positioning the second weighing plate 5 is provided on the first weighing plate 4.

[0031] The weighing sensor 2 is fixed on the first weighing plate 4 through the fixing block 10, and the resin bottle 3 is positioned through a plurality of positioning structures to ensure its horizontal placement and no deviation during the working process. After the second weighing plate 5 is positioned on the first weighing plate 4, it is tightened with bolts.

[0032] A pin assembly 13 that passes upward through the second positioning hole is fixed on the first weighing plate 4. A suction hole is provided on the pin assembly 13. The pin assembly 13 is fixed on the first weighing plate 4 by bolts. One pin assembly 13 is used to extract the resin liquid in the resin bottle 3 for printing, and the other pin assembly 13 is used to blow air into the resin bottle 3 to prevent it from collapsing after the liquid is extracted.

[0033] A support plate 14 for supporting the bottom plate of the placement shell 1 is provided on the bottom surface of the placement shell 1. A plurality of rib plates 15 are provided on the side surface of the placement shell 1. The rib plates 15 are integral with the placement shell 1 and are connected to the bottom plate of the placement shell 1. A nut limiting groove 16 is provided on the rib plates 15. The support plate 14 is fixedly connected to the rib plates 15 through a third bolt 17. The third bolt 17 passes upward through the support plate 14 and the rib plates 15 and is tightened with the nut in the nut limiting groove 16.

[0034] The material of the placement shell 1 is plastic and is integrally injection-molded. The support plate 14 is a sheet metal part with a bending part, and the bending part is fixed to the machine plate 19 by a plurality of fourth bolts 18.

[0035] The support plate 14 is used to support the bottom plate of the placement shell 1. Since it is a plastic part, it has a small thickness and is largely hollowed out. If one end of the weighing sensor 2 is directly fixed to the bottom plate of the placement shell 1, this place is prone to deformation, resulting in inaccurate weighing. Therefore, the designs of the rib plate 15 and the support plate 14 are added to disperse the load of the weighing sensor 2 to the entire placement shell 1. The role of the bending part of the support plate 14 is also to fix the placement shell 1 to the machine plate 19.

[0036] In addition, a gripper groove 22 for conveniently grasping out the resin bottle 3 is provided at the top of the placement shell 1, which facilitates the operator to quickly grasp and place the resin bottle 3.

[0037] The embodiments described in the present utility model are only descriptions of the preferred embodiments of the present utility model, and do not limit the inventive concept and scope of the utility model. Without departing from the design idea of the present utility model, various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope of the present utility model.

Claims

1. A weighing device for a 3D printer resin bottle, characterized in that: The invention comprises a placement shell (1), a weighing sensor (2) is arranged on the bottom plate of the placement shell (1), one end of the weighing sensor (2) is fixed to the bottom plate of the placement shell (1) by a first bolt (6), and the other end is fixed to a weighing plate for placing a resin bottle (3) by a second bolt (7), the weighing sensor (2) is connected to a PCB control board (20) by wires, the PCB control board (20) is connected to a display screen by wires, and the PCB control board (20) is arranged on a machine board (19) of a 3D printer.

2. The weighing device for the resin bottle of a 3D printer according to claim 1, characterized in that: The weighing plate comprises a first weighing plate (4) and a second weighing plate (5) placed on the first weighing plate (4); the second weighing plate (5) is connected to the first weighing plate (4) by bolts; the first weighing plate (4) is a sheet metal part, and the second weighing plate (5) is a plastic part.

3. The weighing device for the 3D printer resin bottle according to claim 2, characterized in that: A first positioning hole (8) for positioning the resin bottle (3) is provided on the second weighing plate (5), a positioning column (9) is provided on the first positioning hole (8), a fixing block (10) is provided between the first weighing plate (4) and the weighing sensor (2), the second bolt (7) passes through the fixing block (10) and is tightened on the first weighing plate (4), second positioning holes (12) are provided on the second weighing plate (5) and on both sides of the first positioning hole (8), and a third positioning hole (11) for positioning the second weighing plate (5) is provided on the first weighing plate (4).

4. The weighing device for the resin bottle of the 3D printer according to claim 3, characterized in that: A pin assembly (13) passing upward through the second positioning hole is fixed on the first weighing plate (4), a suction hole is provided on the pin assembly (13), and the pin assembly (13) is fixed to the first weighing plate (4) by means of bolts.

5. The weighing device for a 3D printer resin bottle according to any one of claims 1 to 4, characterized in that: A support plate (14) for supporting the bottom plate of the placement shell (1) is provided on the bottom surface of the placement shell (1), and a plurality of rib plates (15) are provided on the side surface of the placement shell (1). The rib plates (15) are integral with the placement shell (1) and extend from the bottom plate of the placement shell (1). A nut limiting groove (16) is provided on the rib plates (15). The support plate (14) is fixedly connected to the rib plates (15) by a third bolt (17). The third bolt (17) passes upward through the support plate (14) and the rib plates (15) and is tightened with a nut in the nut limiting groove (16).

6. The weighing device for the resin bottle of a 3D printer according to claim 5, characterized in that: The support plate (14) is a sheet metal part having a bent portion, and the bent portion is fixed to the machine plate (19) via a plurality of fourth bolts (18).

7. The weighing device for the resin bottle of a 3D printer according to claim 6, characterized in that: The placement shell (1) is fixed to the machine plate (19) via a plurality of fifth bolts (21).

8. The weighing device for a 3D printer resin bottle according to any one of claims 1 to 4, characterized in that: A grip groove (22) for conveniently grabbing the resin bottle (3) is provided on the top of the placement shell (1).

9. The weighing device for a 3D printer resin bottle according to any one of claims 1 to 4, characterized in that: The material of the placement shell (1) is plastic and is formed by integral injection molding.

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