Filling machine for 3D printing

Abstract

The utility model belongs to the technical field of 3D printing equipment, and particularly relates to a filling machine for 3D printing, which comprises a base, a conveyor belt, a mixing unit and a filling unit, the filling unit comprises a mounting box, an inner liquid injection pipe, an outer liquid injection pipe, a first motor, a driving gear, a first driven gear, a second driven gear, a third driven gear, a fourth driven gear, a first connecting rod and a second connecting rod, the output end of the first motor is fixedly connected with the driving gear, and the first connecting rod and the second connecting rod are rotatably connected with the mounting box; the first driven gear and the third driven gear are fixedly connected with the first connecting rod, the second driven gear and the fourth driven gear are fixedly connected with the second connecting rod, the driving gear is meshed with the first driven gear and the second driven gear, a first rack and a second rack are arranged on the outer side of the outer injection pipe, and the first rack is meshed with the third driven gear. The second rack is meshed with the fourth driven gear, and the inner liquid injection pipe is partially sleeved with the outer liquid injection pipe. The device can prevent raw materials from splashing out.

Description

Technical Field

[0001] The utility model belongs to the technical field of 3D printing equipment, and particularly relates to a filling machine used for 3D printing. Background Art

[0002] Before 3D printing, the 3D printing raw materials need to be weighed and canned through a filling machine, and then the ingredients are mixed.

[0003] The existing utility model patent application number 202220141906 discloses a photosensitive resin metering and filling machine, which can measure and weigh the filling amount of photosensitive resin with a metering cylinder. However, directly passing the photosensitive resin into the filling bottle through the feed valve at the bottom can easily cause the photosensitive resin to splash out, causing the photosensitive resin to solidify on the transmission mechanism or other positions of the filling machine, which can easily cause the machine to malfunction. Utility Model Content

[0004] The purpose of the present utility model is to solve the problem of raw materials easily splashing out when the current filling machine is canning as described in the above background technology. A new filling machine for 3D printing is proposed, which can prevent raw materials from splashing out.

[0005] The technical solution adopted to achieve the above-mentioned purpose is a filling machine for 3D printing, which includes:

[0006] A base, wherein a bracket is provided on the base;

[0007] A conveyor belt, wherein the conveyor belt is installed on the base;

[0008] A mixing unit, wherein the mixing unit is fixedly connected to the bracket;

[0009] The filling unit includes an installation box, an inner liquid injection tube, an outer liquid injection tube, a first motor, a driving gear, a first driven gear, a second driven gear, a third driven gear, a fourth driven gear, a first connecting rod and a second connecting rod. The installation box is connected to the mixing unit. The first motor is fixed inside the installation box. The output end of the first motor is fixedly connected to the driving gear. The first connecting rod and the second connecting rod are rotatably connected to the installation box. The first driven gear and the third driven gear are fixedly connected to the first connecting rod. The second driven gear and the fourth driven gear are fixedly connected to the second connecting rod. The driving gear is meshed with the first driven gear and the second driven gear. A first rack and a second rack are provided on the outside of the outer injection tube. The first rack is meshed with the third driven gear, and the second rack is meshed with the fourth driven gear. The outer liquid injection tube is partially sleeved on the outside of the inner liquid injection tube.

[0010] In the above technical solution, the filling bottles are transported by a conveyor belt, the raw materials are continuously stirred by a mixing unit and transported to the filling unit, and the raw materials are input into the filling bottles by the filling unit. The first motor can drive the driving gear to rotate, thereby linking other driven gears to control the up and down movement of the external liquid injection tube, and the external liquid injection tube is brought close to the filling bottle mouth or extended into it to prevent the raw materials from splashing out.

[0011] Furthermore, the mixing unit includes a mixing barrel, a second motor, a rotating rod and several stirring rods. The second motor is fixed to the top of the mixing barrel, the output end of the second motor passes through the top wall of the mixing barrel and is fixedly connected to the rotating rod, and the several stirring rods are fixedly connected to the peripheral side of the rotating rod.

[0012] Furthermore, a discharge port is provided at the bottom of the mixing cylinder, and an electric control valve is provided at the discharge port.

[0013] In the above technical solution, whether or not to add the raw materials and the amount of addition are controlled by an electric control valve.

[0014] Furthermore, the inner liquid injection tube is connected to the electric control valve.

[0015] Furthermore, the outer wall of the inner liquid injection tube is in contact with the inner wall of the outer liquid injection tube.

[0016] Furthermore, a scraper ring is provided at the bottom end of the inner liquid injection tube.

[0017] In the above technical solution, since the outer injection tube moves relative to the inner injection tube, it is easy for the raw materials to adhere to the inner wall of the outer injection tube. The scraper ring scrapes the raw materials off to prevent the raw materials from accumulating and clogging.

[0018] Furthermore, the filling unit also includes a flow guide cover, which is detachably connected to the bottom end of the external liquid injection tube.

[0019] In the above technical solution, a flow guide cover can be installed so that the flow guide cover contacts the filling bottle mouth to prevent the raw materials from splashing out.

[0020] Furthermore, the conveyor belt is provided with a magnetic positioning sticker.

[0021] In the above technical solution, the magnetic positioning sticker having magnetic force can cooperate with the corresponding filling bottle to fix and position the filling bottle.

[0022] Furthermore, the magnetic positioning stickers are evenly spaced.

[0023] Furthermore, the third driven gear and the fourth driven gear are half gears.

[0024] In the above technical solution, when the third driven gear contacts the first rack, the fourth driven gear does not contact the second rack, and vice versa, thereby realizing the up and down reciprocating motion of the external liquid injection tube.

[0025] The advantages of the present invention are:

[0026] 1. The utility model controls the up and down reciprocating motion of the external injection tube through the filling unit. When the injection material enters the filling bottle, the external injection tube can be close to or extended into the bottle mouth to prevent the material from splashing out.

[0027] 2. The utility model can fix the filling bottle by means of the magnetic positioning sticker, and can position the filling bottle by means of the interval position of the magnetic positioning sticker, thereby realizing fully automatic filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0029] Figure 1 This is a schematic diagram of the structure of the filling machine of the utility model;

[0030] Figure 2 It is a cross-sectional view of the filling unit of the utility model;

[0031] Figure 3 This is a schematic diagram of the meshing relationship of the gears of the filling unit of the utility model;

[0032] Figure 4 It is a structural schematic diagram of the conveyor belt of the utility model.

[0033] Illustrations: 1. Base, 2. Conveyor belt, 3. Mixing unit, 4. Filling unit, 101. Bracket, 201. Magnetic positioning sticker, 301. Mixing barrel, 302. Second motor, 303. Rotating rod, 304. Stirring rod, 401. Mounting box, 402. Inner liquid injection tube, 403. Outer liquid injection tube, 404. First motor, 405. Driving gear, 406. First driven gear, 407. Second driven gear, 408. Third driven gear, 409. Fourth driven gear, 410. First connecting rod, 411. Second connecting rod, 412. First rack, 413. Second rack, 414. Scraper ring, 415. Air guide cover. DETAILED DESCRIPTION

[0034] In order to enable people in this technical field to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only an embodiment of a part of the utility model rather than all the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0035] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like to indicate orientations or positional relationships 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0036] like Figure 1 As shown, a filling machine for 3D printing consists of a base 1, a conveyor belt 2, a mixing unit 3 and a filling unit 4, wherein the top of the base is concave downward to form a groove, the conveyor belt is installed in the groove, and brackets 101 are provided on the front and rear sides of the conveyor belt for fixing the mixing unit.

[0037] The mixing unit consists of a mixing barrel 301, a second motor 302, a rotating rod 303 and several stirring rods 304. The second motor is fixed to the top of the mixing barrel. The output end of the second motor passes through the top wall of the mixing barrel and is fixedly connected to the rotating rod. The several stirring rods are fixedly connected to the circumference of the rotating rod.

[0038] The top of the mixing barrel is provided with a feed port, the bottom is provided with a discharge port, and an electric control valve 305 is provided at the discharge port.

[0039] like Figure 2 and Figure 3As shown, the filling unit consists of an installation box 401, an inner liquid injection tube 402, an outer liquid injection tube 403, a first motor 404, a driving gear 405, a first driven gear 406, a second driven gear 407, a third driven gear 408, a fourth driven gear 409, a first connecting rod 410 and a second connecting rod 411. The first motor is fixed inside the installation box, the output end of the first motor is fixedly connected to the driving gear, and the left and right ends of the first connecting rod and the second connecting rod are rotatable with the left and right inner walls of the installation box respectively. The first driven gear and the third driven gear are fixedly connected to the first connecting rod, the second driven gear and the fourth driven gear are fixedly connected to the second connecting rod, the driving gear is engaged with the first driven gear and the second driven gear, and the first rack 412 and the second rack 413 are respectively provided on the opposite sides of the outer side of the outer injection tube, the first rack is engaged with the third driven gear, and the second rack is engaged with the fourth driven gear. The outer injection tube is partially sleeved on the outside of the inner injection tube and is slidably connected. The inner injection tube is fixedly connected to the mounting box, and the inner injection tube is connected to the electric control valve.

[0040] In one embodiment, the third driven gear and the fourth driven gear are half gears, and when the third driven gear is in contact with the first rack, the fourth driven gear is not in contact with the second rack, and vice versa.

[0041] In one embodiment, the outer wall of the inner liquid injection tube is in contact with the inner wall of the outer liquid injection tube.

[0042] In one embodiment, a scraper ring 414 is provided at the bottom end of the inner liquid injection tube.

[0043] In one embodiment, a flow guide cover 415 is provided at the bottom end of the external liquid injection tube, and the flow guide cover is detachably connected to the external liquid injection tube.

[0044] In one embodiment, the conveyor belt is provided with magnetic positioning stickers 201, which are evenly spaced.

[0045] The working principle and process of this utility model:

[0046] The raw materials in the mixing unit are controlled by the electric control valve to control whether they flow into the inner liquid filling pipe and the flow rate of the raw materials; when the filling bottle reaches the bottom of the filling unit through the conveyor belt, the conveyor belt pauses, the first motor drives the driving gear to rotate, the driving gear drives the first driven gear and the second driven gear to rotate, the first driven gear and the second driven gear respectively drive the third driven gear and the fourth driven gear to rotate. Since the third driven gear and the fourth driven gear are half gears, when the third driven gear contacts the first rack, the fourth driven gear does not contact the second rack, the outer liquid filling pipe moves downward first, the electric control valve opens to fill the filling bottle, at this time the outer liquid filling pipe extends into the filling bottle (when a deflector is connected to the bottom of the outer liquid filling pipe, the deflector is connected to the filling bottle mouth), after the filling is completed, the third driven gear does not contact the first rack, the fourth driven gear contacts the second rack, the outer liquid filling pipe moves up, the conveyor belt is started again, and the above steps are repeated to automatically fill other filling bottles.

[0047] Finally, it should be noted that the present embodiment is intended only to illustrate the present invention and does not limit the scope of the present invention. In addition, it should be understood that after reading the contents of the present invention, those skilled in the art may make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

Claims

1. A filling machine for 3D printing, characterized by: The filling machine comprises: A base (1), wherein a bracket (101) is provided on the base; A conveyor belt (2), the conveyor belt being mounted on a base; A mixing unit (3), the mixing unit being fixedly connected to the bracket; A filling unit (4), comprising an installation box (401), an inner liquid injection tube (402), an outer liquid injection tube (403), a first motor (404), a driving gear (405), a first driven gear (406), a second driven gear (407), a third driven gear (408), a fourth driven gear (409), a first connecting rod (410) and a second connecting rod (411), wherein the installation box is connected to the mixing unit, the first motor is fixed inside the installation box, and the output end of the first motor is fixed to the driving gear The first connecting rod and the second connecting rod are rotatably connected to the mounting box, the first driven gear and the third driven gear are fixedly connected to the first connecting rod, the second driven gear and the fourth driven gear are fixedly connected to the second connecting rod, the driving gear is engaged with the first driven gear and the second driven gear, a first rack (412) and a second rack (413) are provided on the outside of the outer injection tube, the first rack is engaged with the third driven gear, the second rack is engaged with the fourth driven gear, and the outer injection tube is partially sleeved on the outside of the inner injection tube.

2. The filling machine according to claim 1, characterized in that: The mixing unit comprises a mixing barrel (301), a second motor (302), a rotating rod (303) and a plurality of stirring rods (304), wherein the second motor is fixed to the top of the mixing barrel, the output end of the second motor passes through the top wall of the mixing barrel and is fixedly connected to the rotating rod, and the plurality of stirring rods are fixedly connected to the circumference of the rotating rod.

3. The filling machine according to claim 2, characterized in that: A discharge port is provided at the bottom of the mixing cylinder, and an electric control valve (305) is provided at the discharge port.

4. The filling machine according to claim 3, characterized in that: The inner liquid injection tube is connected to the electric control valve.

5. The filling machine according to claim 1, characterized in that: The outer wall of the inner liquid injection tube is in contact with the inner wall of the outer liquid injection tube.

6. The filling machine according to claim 1, characterized in that: A scraper ring (414) is provided at the bottom end of the inner liquid injection tube.

7. The filling machine according to claim 1, characterized in that: The filling unit further comprises a flow guide cover (415), which is detachably connected to the bottom end of the external liquid injection tube.

8. The filling machine according to claim 1, characterized in that: The conveyor belt is provided with a magnetic positioning sticker (201).

9. The filling machine according to claim 8, characterized in that: The magnetic positioning stickers are evenly spaced.

10. The filling machine according to claim 1, characterized in that: The third driven gear and the fourth driven gear are half gears.

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