Liquid filling machine

Abstract

The utility model discloses a liquid filling machine which comprises a vibration disc, a feeding assembly, a rotary disc, a filling assembly and a discharging assembly, automatic feeding, filling and discharging are achieved, and the working efficiency is improved. The filling assembly comprises a heating mechanism, a liquid outlet mechanism and a filling distance adjusting mechanism. The heating mechanism is provided with a tank body for heating molten metal; the liquid outlet mechanism comprises a liquid outlet nozzle and a plugging rod, and the plugging rod can open and close the liquid outlet nozzle; the filling distance adjusting mechanism comprises an ejector rod, the ejector rod is located at the bottom end of the pipe blank, the ejector rod can promote the pipe blank to be upwards close to the liquid outlet nozzle, a distance is reserved between the top end of the pipe blank and the liquid outlet nozzle in the first-time filling process, and the top end of the pipe blank abuts against the liquid outlet nozzle in the second-time filling process. And the filling action is executed twice, so that air can be discharged during filling, internal residual air is reduced, molten metal filling is more full, and thus the filling quality is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of filling, in particular to a liquid filling machine. Background Art

[0002] The hydraulic bulging of the tee is a forming process that expands the branch pipe through axial compensation of the metal material. Before the hydraulic bulging, the tube blank needs to be filled with molten metal;

[0003] The relevant filling technology is: the loading and unloading of the tube blanks are performed manually, which is labor-intensive and has low work efficiency;

[0004] Moreover, during filling, after the tube billet contacts the filling nozzle, the molten metal is filled at once. Because the tube billet is connected with the filling nozzle, the air in the tube billet is difficult to be discharged during the filling process, resulting in more residual air in the tube billet, which affects the filling quality. Utility Model Content

[0005] The utility model aims to provide a liquid filling machine which can automatically perform actions such as loading, filling and unloading, realize automated production and improve work efficiency.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Liquid filling machine, including a vibration plate, a loading assembly, a turntable, a filling assembly and a unloading assembly;

[0008] The edge of the turntable is equipped with multiple evenly distributed fixtures, and the turntable is equipped with loading stations, filling stations and unloading stations in sequence along the direction of rotation;

[0009] The feeding assembly corresponds to the feeding station, and the feeding assembly is connected to the vibration plate;

[0010] The filling components correspond to the filling stations;

[0011] The blanking components correspond to the blanking stations;

[0012] The filling assembly includes a heating mechanism, a liquid discharge mechanism and a filling distance adjustment mechanism;

[0013] The heating mechanism is provided with a tank for heating the molten metal;

[0014] The liquid outlet mechanism includes a liquid outlet nozzle and a blocking rod, and the blocking rod can open and close the liquid outlet nozzle;

[0015] The filling distance adjustment mechanism includes a push rod, which is located at the bottom end of the tube blank. The push rod can push the tube blank upward to approach the liquid outlet nozzle. During the first filling, there is a distance between the top end of the tube blank and the liquid outlet nozzle. During the second filling, the top end of the tube blank conflicts with the liquid outlet nozzle.

[0016] In some embodiments, during the first filling, the distance between the top of the tube blank and the liquid outlet nozzle is between 50 μm and 1.0 mm.

[0017] In some embodiments, when the first filling is completed, the filling amount of the internal molten metal of the tube blank exceeds 80%;

[0018] Or when the first filling is completed, the distance between the liquid level of the molten metal inside the tube and the top of the tube is less than 1.5 cm.

[0019] In some embodiments, the filling distance adjustment mechanism further includes a push plate, a first stroke driving member, and a second stroke driving member;

[0020] The push plate is arranged below the push rod;

[0021] The first stroke driving member and the second stroke driving member are both arranged below the push plate;

[0022] During the first filling, the first stroke driving member drives the ejector rod to move;

[0023] During the second filling, the second stroke driving member drives the ejector rod to move.

[0024] In some embodiments, the liquid outlet nozzle includes a liquid outlet channel and a tapered cavity;

[0025] The plugging rod is provided with a plugging portion and a tapered portion; the plugging portion matches with the liquid outlet channel, and the tapered portion matches with the tapered cavity;

[0026] The plugging rod can close the outlet flow channel in a free-falling manner.

[0027] In some embodiments, the liquid outlet mechanism further includes a gravity block and a lifting mechanism;

[0028] The lifting mechanism drives the plugging rod to move upward, thereby opening the liquid outlet channel;

[0029] The gravity block drives the plugging rod downward by gravity, thereby closing the liquid outlet channel.

[0030] In some embodiments, a clamping assembly is further included, and when the second filling is completed, the clamping assembly can push the top end of the tube blank away from the liquid outlet nozzle.

[0031] In some embodiments, a tray is further included, and the tray is disposed below the turntable.

[0032] In some embodiments, the feeding assembly includes a first channel, a material distribution mechanism and a second channel;

[0033] One end of the first channel is connected to the vibration plate, and the other end of the second channel is connected to the second channel;

[0034] A material distribution mechanism is provided at the end of the first channel close to the second channel;

[0035] The second channel includes a horizontal channel, an arc channel and a vertical channel connected in sequence;

[0036] The cross section of the horizontal channel is in a "V" shape. A first push driving member is provided on one side of the horizontal channel. The output end of the first push driving member is connected to a push block, and the push block can slide in the horizontal channel.

[0037] A second push driving member is arranged above the vertical channel, and an output end of the second push driving member is connected to the first push pin, and the first push pin can slide in the vertical channel.

[0038] In some embodiments, the blanking assembly includes a second push pin, a blanking drive member, and a blanking channel;

[0039] The material unloading driving component is arranged above the material unloading station, and the output end of the material unloading driving component is connected with the second push pin; the material unloading channel is arranged below the material unloading station.

[0040] The beneficial effects of the utility model are as follows: the filling machine can automatically load, fill and unload materials, realize automatic production and improve work efficiency;

[0041] In addition, during the first filling, there is a distance between the top of the tube blank and the liquid outlet nozzle, so that the air can be discharged. During the second filling, the top of the tube blank contacts the liquid outlet nozzle, thus completing the entire filling. Therefore, the filling action is performed twice, so that the air can be discharged during filling, reducing the internal residual air, making the metal liquid filling more substantial, thereby improving the filling quality;

[0042] Furthermore, the plugging rod closes the liquid outlet in a free-falling manner, which helps to reduce wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 It is a top view of the liquid filling machine of the utility model;

[0044] Figure 2 It is an axonometric view of the liquid filling machine of the utility model;

[0045] Figure 3 This is a structural diagram of a turntable of the utility model;

[0046] Figure 4 It is a structural diagram of the feeding assembly of the utility model;

[0047] Figure 5 This is a structural diagram of a tray of the utility model;

[0048] Figure 6 It is an axonometric view of the filling assembly of the utility model;

[0049] Figure 7 This is a front view of the filling component of the utility model;

[0050] Figure 8 This is a structural diagram of the filling distance adjustment mechanism of the utility model;

[0051] Fig. 9 It is a structural diagram of the liquid outlet mechanism of the utility model;

[0052] Fig.10 It is a cross-sectional structural diagram of the liquid outlet nozzle and the plugging rod of the utility model;

[0053] Fig.11 This is a structural diagram of the heating mechanism of the utility model;

[0054] Fig.12 It is a schematic diagram of the first filling of the utility model;

[0055] Fig.13 It is a schematic diagram of the second filling of the utility model;

[0056] Fig.14 It is a structural diagram of the clamping assembly of the utility model;

[0057] Fig.15 It is a schematic diagram of the action of the clamping assembly of the utility model;

[0058] Among them: 1-vibrating plate; 2-feeding assembly; 21-first channel; 22-distributing mechanism; 221-first distribution drive; 222-pressing block; 223-second distribution drive; 224-distributing rod; 23-second channel; 231-horizontal channel; 232-arc channel; 233-vertical channel; 241-first push drive; 242-push block; 251-second push drive; 252-first Push pin; 3-turntable; 3a-loading station; 3b-filling station; 3c-unloading station; 31-fixture; 4-tray; 41-height adjustment mechanism; 411-screw rod; 412-nut block; 413-handle; 5-filling assembly; 51-heating mechanism; 511-tank; 512-heating rod; 513-float; 52-liquid discharge mechanism; 521-liquid discharge nozzle; 5210-liquid discharge channel; 5211-conical cavity ; 522-blocking rod; 5220-blocking part; 5221-conical part; 523-gravity block; 524-first rod body; 525-lifting mechanism; 5250-lifting force block; 5251-lifting bracket; 52510-slot hole; 5252-lifting cylinder; 5253-lifting connecting rod; 5254-first guide rail; 5255-first slider; 5256-bridge block; 53-filling distance adjustment mechanism; 53 0- ejector rod; 531- push plate; 532a- first stroke driving member; 532b- second stroke driving member; 533- second guide rail; 534- second slider; 6- clamping assembly; 61- finger cylinder; 611- clamp; 62- lifting cylinder; 63- third guide rail; 64- third slider; 7- unloading assembly; 71- second push pin; 72- unloading driving member; 73- unloading channel; 8- tube blank; 9- molten metal. DETAILED DESCRIPTION

[0059] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0060] refer to Figures 1 to 3 , a liquid filling machine, comprising a vibration plate 1, a feeding assembly 2, a turntable 3, a filling assembly 5 and a discharge assembly 7;

[0061] A plurality of evenly distributed jigs 31 are provided at the edge of the turntable 3. The jigs 31 are used to place the tube blank 8. The tube blank 8 can be a copper tube or other pipe material. The jig 31 can be cylindrical or columnar, and a through hole is provided in the middle. The tube blank 8 can be slidably inserted into the through hole, and the tube blank 8 can stay or be fixed at a preset position by the friction between the two.

[0062] The turntable 3 is provided with a loading station 3a, a filling station 3b and a unloading station 3c in sequence along the rotation direction; the turntable 3 can be driven by a servo motor to realize the feeding of the tube blank 8 and the switching of the stations;

[0063] The feeding assembly 2 corresponds to the feeding station 3a, and the feeding assembly 2 is connected to the vibration plate 1;

[0064] The filling assembly 5 corresponds to the filling station 3b;

[0065] The blanking assembly 7 corresponds to the blanking station 3c;

[0066] The vibrating plate 1 transports the scattered tube blanks 8 to the loading assembly 2 in an orderly manner. The loading assembly 2 transports the tube blanks 8 to the fixture 31 of the loading station 3a. The turntable 3 feeds the tube blanks 8 and switches between stations in a rotating manner. After the tube blanks 8 are fed to the filling station 3b, the filling assembly 5 pours molten metal 9 into the tube blanks 8. Then, the tube blanks 8 are fed to the unloading station 3c, and the unloading assembly 7 performs the unloading action, thereby realizing automated production and improving work efficiency.

[0067] refer to Figures 6 to 10 The filling assembly 5 includes a heating mechanism 51, a liquid outlet mechanism 52 and a filling distance adjustment mechanism 53;

[0068] The heating mechanism 51 is provided with a tank 511 for heating the molten metal 9;

[0069] The liquid outlet mechanism 52 includes a liquid outlet nozzle 521 and a blocking rod 522. The liquid outlet nozzle 521 is arranged on the bottom wall of the tank body 511, and the blocking rod 522 can open and close the liquid outlet nozzle 521.

[0070] The filling distance adjustment mechanism 53 includes a push rod 530, which is located at the bottom end of the tube blank 8. The push rod 530 can push the tube blank 8 upward to approach the liquid outlet nozzle 521;

[0071] refer to Fig.12 During the first filling, a distance is left between the top of the tube blank 8 and the liquid outlet nozzle 521; Fig.13 During the second filling, the top of the tube blank 8 conflicts with the liquid outlet nozzle 521;

[0072] During the first filling, there is a distance between the top of the tube blank 8 and the liquid outlet nozzle 521. When the molten metal 9 is filled into the tube blank 8, the air in the tube blank 8 can be discharged outward through the gap formed by the distance, thereby reducing the internal residual air and making the molten metal 9 filled more fully. After completing the first filling, the tube blank 8 continues to move upward, and the top of the tube blank 8 collides with the liquid outlet nozzle 521. During this period, the tube blank 8 is continuously filled with the molten metal 9 until the molten metal 9 fills the entire tube blank 8, thereby completing the second filling, and then completing the filling of the entire tube blank 8. Therefore, the filling action is performed twice, so that the air can be discharged during filling, reducing the internal residual air, making the molten metal 9 filled more fully, thereby improving the filling quality.

[0073] refer to Fig.12During the first filling, the distance D between the top of the tube blank 8 and the liquid outlet nozzle 521 is between 50 micrometers and 1.0 millimeters.

[0074] refer to Fig.12 When the first filling is completed, the filling amount of the internal metal liquid 9 of the tube blank 8 exceeds 80%, that is, it has reached more than 80% of the internal volume of the tube blank 8, for example, between 80% and 90%;

[0075] Or when the first filling is completed, the distance H between the liquid level of the molten metal 9 inside the tube blank 8 and the top of the tube blank 8 is less than 1.5 cm, for example, between 1.0 cm and 1.5 cm; thus, in the first filling, most of the molten metal 9 has been filled into the tube blank 8, so that the air can be discharged as much as possible, thereby improving the filling quality.

[0076] refer to Figure 8 The filling distance adjustment mechanism 53 further includes a push plate 531, a first stroke driving member 532a and a second stroke driving member 532b;

[0077] The push plate 531 is disposed below the push rod 530;

[0078] The first stroke driving member 532a and the second stroke driving member 532b are both disposed below the push plate 531;

[0079] During the first filling, the first stroke driving member 532a drives the ejector rod 530 to move;

[0080] During the second filling, the second stroke driving member 532b drives the ejector rod 530 to move;

[0081] The stroke of the second stroke driving member 532b is greater than the stroke of the first stroke driving member 532a; the first stroke driving member 532a and the second stroke driving member 532b can both be structures such as cylinders, electric push rods or cams;

[0082] The push plate 531 may be connected to the second slider 534 , and the second slider 534 may be connected to the second guide rail 533 , so as to improve the stability and accuracy of the movement.

[0083] refer to Fig.10 , the liquid outlet nozzle 521 includes a liquid outlet channel 5210 and a tapered cavity 5211;

[0084] The plugging rod 522 is provided with a plugging portion 5220 and a tapered portion 5221; the plugging portion 5220 cooperates with the liquid outlet channel 5210 to realize the opening and closing of the liquid outlet nozzle 521, and the tapered portion 5221 cooperates with the tapered cavity 5211; the tapered portion 5221 and the tapered cavity 5211 both have a tapered inclined surface structure, and the guiding and correcting functions are realized through the tapered inclined surface structure, so that the plugging portion 5220 can be accurately inserted into the liquid outlet channel 5210;

[0085] The blocking rod 522 can close the liquid outlet channel 5210 in a free-falling manner. For example, the blocking rod 522 can move downward due to gravity, thereby closing the liquid outlet channel 5210. Compared with mechanical power such as a cylinder and a screw, the impact force formed by free-falling methods such as gravity is smaller and gentler, and can reduce wear such as impact and friction, that is, reduce the impact force between the blocking portion 5220 and the liquid outlet channel 5210, and reduce the impact force between the conical portion 5221 and the conical cavity 5211, thereby increasing the service life.

[0086] refer to Fig. 9 , the liquid outlet mechanism 52 also includes a gravity block 523 and a lifting mechanism 525;

[0087] The lifting mechanism 525 drives the blocking rod 522 to move upward, thereby opening the liquid outlet channel 5210;

[0088] The gravity block 523 is mounted on the blocking rod 522 , and the gravity block 523 drives the blocking rod 522 to move downward by gravity, thereby closing the liquid outlet channel 5210 .

[0089] The lifting mechanism 525 includes a lifting force block 5250, a lifting bracket 5251 and a lifting cylinder 5252;

[0090] The lifting force block 5250 is connected to the blocking rod 522; the lifting force block 5250 can be mounted on the blocking rod 522;

[0091] The lifting bracket 5251 is arranged below the lifting force block 5250, and the lifting bracket 5251 is provided with a slot 52510 capable of accommodating the blocking rod 522; the slot 52510 may be a U-shaped hole or a strip-shaped hole, and one end of the slot 52510 is an open structure;

[0092] The output end of the lifting cylinder 5252 is connected to the lifting bracket 5251;

[0093] The lifting cylinder 5252 drives the lifting bracket 5251 to move upward, thereby driving the blocking rod 522 to move upward, and the liquid outlet nozzle 521 opens; when the filling is completed, the lifting cylinder 5252 does not work, and the gravity block 523 drives the blocking rod 522 to move downward by gravity, and the liquid outlet nozzle 521 is closed;

[0094] Further, the lifting bracket 5251 may be L-shaped, the lifting bracket 5251 is connected to the first slider 5255, the first slider 5255 is connected to the first guide rail 5254, a lifting cylinder 5252 is provided on the top of the first guide rail 5254, and the lifting cylinder 5252 is connected to the lifting bracket 5251 through a lifting connecting rod 5253;

[0095] The blocking rod 522 is connected to the first rod body 524. The first guide rail 5254 is provided with a bridging block 5256. The first rod body 524 and the lifting connecting rod 5253 can be slidably connected to the bridging block 5256 to achieve a certain limiting and guiding effect.

[0096] refer to Fig.11 The heating mechanism 51 further includes a heating rod 512 and a floating ball 513 disposed inside the tank 511. The heating rod 512 heats the molten metal 9, and the floating ball 513 is used to detect the liquid level of the molten metal 9.

[0097] refer to Fig.14 and Fig.15 , further comprising a clipping assembly 6, which can push the top of the tube blank 8 away from the liquid outlet nozzle 521 after the second filling is completed, so that the tube blank 8 is separated from the liquid outlet nozzle 521;

[0098] After the filling is completed, the molten metal 9 cools down, which causes the molten metal 9 to adhere to the liquid outlet nozzle 521. The clamping assembly 6 drives the tube blank 8 to move downward, thereby separating from the liquid outlet nozzle 521, which facilitates the subsequent unloading of the tube blank 8.

[0099] Furthermore, the clamping assembly 6 includes a finger cylinder 61 and a lifting cylinder 62. The finger cylinder 61 is provided with a clamp 611 capable of clamping the tube blank 8. The output end of the lifting cylinder 62 is connected to the finger cylinder 61, thereby driving the finger cylinder 61 to move up and down; after the clamp 611 clamps the tube blank 8, the lifting cylinder 62 drives the finger cylinder 61 to move downward, thereby realizing the separation of the tube blank 8 from the liquid outlet nozzle 521;

[0100] The finger cylinder 61 is connected to the third slider 64, and the third slider 64 is connected to the third guide rail 63, thereby improving the stability and accuracy of the movement.

[0101] refer to Figure 3 and Figure 5 , and further includes a tray 4, which is arranged below the turntable 3. The tray 4 can be used to limit the position of the tube blank 8. For example, when loading, the bottom end of the tube blank 8 contacts the tray 4, so that the tube blank 8 is positioned at a preset height or position, and when the tube blank 8 is switched between workstations, the bottom end of the tube blank 8 remains in contact with the tray 4 to prevent the tube blank 8 from falling or shifting.

[0102] Furthermore, in order to adapt to tube blanks 8 of different lengths, the tray 4 can be connected to a height adjustment mechanism 41 to adjust the height position. The height adjustment mechanism 41 includes a screw rod 411, a nut block 412 and a handle 413. The screw rod 411 is threadedly connected to the nut block 412. The handle 413 is linked to the screw rod 411. The nut block 412 is connected to the tray 4. By turning the handle 413, the screw rod 411 rotates, driving the nut block 412 to move up and down, thereby driving the tray 4 to move up and down. In order to improve the smoothness and accuracy of the movement, the tray 4 can be connected to a first guide rod, which plays a guiding role.

[0103] refer to Figure 4 The feeding assembly 2 includes a first channel 21, a material distribution mechanism 22 and a second channel 23;

[0104] The first channel 21 is arranged obliquely, one end of the first channel 21 is connected to the vibration plate 1 , and the other end of the second channel 23 is connected to the second channel 23 .

[0105] A material distribution mechanism 22 is provided at the end of the first channel 21 close to the second channel 23;

[0106] The material dividing mechanism 22 includes a pressing block 222 and a dividing rod 224, the pressing block 222 is connected to the first material dividing drive member 221, and the dividing rod 224 is connected to the second material dividing drive member 223; during material dividing, the dividing rod 224 moves downward to block the tube blank 8, causing the tube blank 8 to stop feeding, and then the pressing block 222 presses multiple tube blanks 8, among which a tube blank 8 close to the dividing rod 224 is not pressed, and then the dividing rod 224 moves upward, and the tube blanks 8 that are not pressed are fed to the second channel 23, and the above actions are repeated, so that the tube blanks 8 are fed to the second channel 23 in an orderly manner one by one.

[0107] The second channel 23 includes a horizontal channel 231, an arc channel 232 and a vertical channel 233 which are connected in sequence;

[0108] The cross section of the horizontal channel 231 is in a "V" shape. A first push driving member 241 is provided on one side of the horizontal channel 231. The output end of the first push driving member 241 is connected to a push block 242. The push block 242 can slide in the horizontal channel 231.

[0109] A second push driving member 251 is disposed above the vertical channel 233 . An output end of the second push driving member 251 is connected to a first push pin 252 . The first push pin 252 can slide in the vertical channel 233 .

[0110] Thus, after the tube blank 8 is fed to the horizontal channel 231, the push block 242 pushes the tube blank 8 to the arc channel 232, and then feeds to the vertical channel 233, and the tube blank 8 is placed vertically instead of horizontally, and then the first push pin 252 moves downward, inserts into the vertical channel 233, and pushes the tube blank 8 to be inserted into the fixture 31 of the loading station 3a, thereby completing the loading action. Among them, the first push drive member 241 and the second push drive member 251 can be structures such as cylinders or electric push rods.

[0111] refer to Figure 3 The blanking assembly 7 includes a second push pin 71, a blanking driving member 72 and a blanking channel 73;

[0112] The unloading drive 72 is arranged above the unloading station 3c, and the output end of the unloading drive 72 is connected to the second push pin 71; the unloading drive 72 can be a structure such as a cylinder or an electric push rod; the unloading flow channel is arranged below the unloading station 3c. After the filling action is completed, the tube blank 8 is fed to the unloading station 3c, and the second push pin 71 moves downward, pushing the tube blank 8 away from the fixture 31, causing the tube blank 8 to fall into the loading channel.

[0113] The filling steps based on this automatic filling machine are as follows:

[0114] S1: The vibrating plate 1 transports the tube blank 8 to the first channel 21 of the feeding assembly 2 in an orderly manner, and the dividing mechanism 22 divides the tube blank 8. The tube blank 8 is placed vertically instead of horizontally in the second channel 23. The first push pin 252 moves downward to insert the tube blank 8 into the fixture 31 of the feeding station 3a, completing the feeding action;

[0115] S2: The turntable 3 rotates to feed the tube blank 8 at the loading station 3a to the filling station 3b;

[0116] S21: Execute the first filling, the top rod 530 of the filling distance adjustment mechanism 53 moves upward, causing the tube blank 8 to move upward and approach the liquid outlet nozzle 521, and making the distance D between the top of the tube blank 8 and the liquid outlet nozzle 521 between 50 microns and 1.0 mm, then, the lifting mechanism 525 drives the plugging rod 522 to move upward, the liquid outlet nozzle 521 opens, and the metal liquid 9 is poured into the inside of the tube blank 8. When the pouring amount reaches a preset value, for example, when the pouring amount of the metal liquid 9 inside the tube blank 8 exceeds 80%, or when the distance H between the liquid level of the metal liquid 9 inside the tube blank 8 and the top of the tube blank 8 is less than 1.5 cm, the first filling action is considered to be completed;

[0117] S22: Execute the second filling. When the first filling is completed, the push rod 530 of the filling distance adjustment mechanism 53 continues to push the tube blank 8 upward, causing the top of the tube blank 8 to collide with the liquid outlet nozzle 521. During this period, the tube blank 8 is continuously filled with the molten metal 9 until the molten metal 9 fills the entire tube blank 8, thereby completing the second filling action.

[0118] S23: the lifting cylinder 5252 of the lifting mechanism 525 does not work, and the gravity block 523 drives the blocking rod 522 to move downward by gravity, closing the liquid outlet 521.

[0119] S3: The clamp 611 of the clamping assembly 6 clamps the tube blank 8 and drives the tube blank 8 to move downward, thereby causing the tube blank 8 to separate from the liquid outlet nozzle 521.

[0120] S4: the turntable 3 rotates, and the tube blank 8 at the filling station 3b is fed to the unloading station 3c. The second push pin 71 of the unloading assembly 7 moves downward, and pushes the tube blank 8 downward away from the fixture 31, causing the tube blank 8 to fall into the unloading channel 73, completing the unloading action.

[0121] The above disclosure is only some embodiments of the utility model. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the utility model, and these all belong to the protection scope of the utility model.

Claims

1. Liquid filling machine, characterized in that, It comprises a vibrating plate (1), a feeding assembly (2), a rotating plate (3), a filling assembly (5) and a feeding assembly (7); The edge of the turntable (3) is provided with a plurality of evenly distributed jigs (31), and the turntable (3) is provided with a loading station (3a), a filling station (3b) and a unloading station (3c) in sequence along the rotation direction; The loading assembly (2) corresponds to the loading station (3a), and the loading assembly (2) is connected to the vibration plate (1); The filling assembly (5) corresponds to the filling station (3b); The blanking assembly (7) corresponds to the blanking station (3c); The filling assembly (5) comprises a heating mechanism (51), a liquid discharge mechanism (52) and a filling distance adjustment mechanism (53); The heating mechanism (51) is provided with a tank body (511) for heating the molten metal (9); The liquid outlet mechanism (52) comprises a liquid outlet nozzle (521) and a blocking rod (522), and the blocking rod (522) can open and close the liquid outlet nozzle (521); The filling distance adjustment mechanism (53) comprises a push rod (530), wherein the push rod (530) is located at the bottom end of the tube blank (8), and the push rod (530) can push the tube blank (8) upward to approach the liquid outlet nozzle (521). During the first filling, a distance is left between the top end of the tube blank (8) and the liquid outlet nozzle (521), and during the second filling, the top end of the tube blank (8) is in conflict with the liquid outlet nozzle (521).

2. The liquid filling machine according to claim 1, characterized in that: During the first filling, the distance (D) between the top of the tube blank (8) and the liquid outlet nozzle (521) is between 50 micrometers and 1.0 millimeters.

3. The liquid filling machine according to claim 2, characterized in that: When the first filling is completed, the filling amount of the internal metal liquid (9) of the tube blank (8) exceeds 80%; Or when the first filling is completed, the distance (H) between the liquid level of the molten metal (9) inside the tube blank (8) and the top of the tube blank (8) is less than 1.5 cm.

4. The liquid filling machine according to claim 1, characterized in that: The filling distance adjustment mechanism (53) further comprises a push plate (531), a first stroke driving member (532a) and a second stroke driving member (532b); The push plate (531) is arranged below the push rod (530); The first stroke driving member (532a) and the second stroke driving member (532b) are both arranged below the push plate (531); During the first filling, the first stroke driving member (532a) drives the ejector rod (530) to move; During the second filling, the second stroke driving member (532b) drives the ejector rod (530) to move.

5. The liquid filling machine according to claim 1, characterized in that: The liquid outlet nozzle (521) comprises a liquid outlet channel (5210) and a tapered cavity (5211); The blocking rod (522) is provided with a blocking portion (5220) and a tapered portion (5221); the blocking portion (5220) matches with the liquid outlet channel (5210), and the tapered portion (5221) matches with the tapered cavity (5211); The blocking rod (522) can close the liquid outlet channel (5210) in a free-falling manner.

6. The liquid filling machine according to claim 5, characterized in that: The liquid outlet mechanism (52) further comprises a gravity block (523) and a lifting mechanism (525); The lifting mechanism (525) drives the blocking rod (522) to move upward, thereby opening the liquid outlet channel (5210); The gravity block (523) drives the blocking rod (522) to move downward by gravity, thereby closing the liquid outlet channel (5210).

7. The liquid filling machine according to claim 1, characterized in that: It also includes a clamping assembly (6) which can push the top end of the tube blank (8) away from the liquid outlet nozzle (521) when the second filling is completed.

8. The liquid filling machine according to claim 1, characterized in that: It also comprises a tray (4), wherein the tray (4) is arranged below the turntable (3).

9. The liquid filling machine according to claim 1, characterized in that: The feeding assembly (2) comprises a first channel (21), a material distribution mechanism (22) and a second channel (23); One end of the first channel (21) is connected to the vibration plate (1), and the other end of the second channel (23) is connected to the second channel (23); The material distribution mechanism (22) is provided at the end of the first channel (21) close to the second channel (23); The second channel (23) comprises a horizontal channel (231), an arc-shaped channel (232) and a vertical channel (233) which are connected in sequence; The cross section of the horizontal channel (231) is in a "V" shape. A first push driving member (241) is provided on one side of the horizontal channel (231). The output end of the first push driving member (241) is connected to a push block (242). The push block (242) can slide in the horizontal channel (231). A second push driving member (251) is provided above the vertical channel (233), and an output end of the second push driving member (251) is connected to a first push pin (252), and the first push pin (252) can slide in the vertical channel (233).

10. The liquid filling machine according to claim 1, characterized in that: The material discharge assembly (7) comprises a second push pin (71), a material discharge driving member (72) and a material discharge channel (73); The material unloading driving member (72) is arranged above the material unloading station (3c), and the output end of the material unloading driving member (72) is connected to the second push pin (71); The material unloading channel (73) is arranged below the material unloading station (3c).

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