PET bottle filling material backflow device

Abstract

The utility model provides a PET bottle filling material backflow device which comprises a valve body, a fixing cover is fixedly arranged on the outer side of the bottom end of the valve body, a filling head is fixedly arranged at the bottom end of the valve body, a filling channel and an exhaust channel are formed in the two sides of the interior of the filling head respectively, a backflow mechanism is arranged above the exhaust channel, and the backflow mechanism is arranged above the valve body. And the backflow mechanism comprises a backflow port. The rotating disc is driven by the servo motor to rotate in the valve body, so that the through hole can be communicated with the exhaust port and the exhaust channel, air in the PET bottle body can be conveniently pumped out through the exhaust port and the exhaust channel, negative pressure is formed in the PET bottle body, the filling speed can be increased, and meanwhile when the liquid level in the PET bottle body is high, the liquid level in the PET bottle body can be increased. Foam generated during filling is sucked out, and backflow treatment is conducted on the foam; and through rotation adjustment of the rotating disc, the backflow opening can communicate with the inner cavity, residual materials in the inner cavity can conveniently flow back to a designated place, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of PET bottle filling, in particular to a PET bottle filling material reflux device. Background Art

[0002] A Chinese invention patent with publication number CN106744593A discloses a filling valve with a reflux mechanism, which is arranged on a frame. The filling valve includes a valve seat arranged on the frame, a feed pipe connected to the valve seat, and a reflux mechanism connected to the valve seat; the reflux mechanism includes a reflux pipe connected to the valve seat, and a reflux control valve arranged at one end of the reflux pipe for controlling whether liquid material in the valve seat flows into the reflux pipe.

[0003] The reflux mechanism can be set up so that the material can flow back to the designated recovery point through the reflux mechanism when not filling; however, this reflux mechanism can only flow back the remaining material in the cavity, and cannot suck out and flow back the foam generated by filling, so it has low practicality.

[0004] To this end, the utility model provides a PET bottle filling material reflux device. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a PET bottle filling material reflux device to solve the problems raised in the above-mentioned background technology. The utility model can suck out the foam generated during filling through the exhaust channel, reflux the foam by adjusting the rotation of the turntable, and can increase the filling speed, thereby having high practicality.

[0006] In order to achieve the above-mentioned purpose, the utility model is realized through the following technical scheme: a PET bottle filling material reflux device, including a valve body, a fixed cover is fixedly arranged on the outer side of the bottom end of the valve body, a filling head is fixedly arranged on the bottom end of the valve body, a filling channel and an exhaust channel are respectively opened on the two sides of the interior of the filling head, a reflux mechanism is arranged above the exhaust channel, the reflux mechanism includes a reflux port, a turntable is arranged on one side of the reflux port corresponding to the internal rotation of the valve body, a through hole is opened inside one end of the turntable, sealing rubber rings are fixedly arranged on both sides of the turntable corresponding to the through hole positions, and a PET bottle body is arranged below the fixed cover.

[0007] Furthermore, an inner cavity is opened on one side of the valve body, a hydraulic mechanism is arranged on the top of the inner cavity, the hydraulic mechanism includes a piston plate, and a mounting plate is fixedly arranged on one side of the valve body.

[0008] Furthermore, a sealing rubber layer is provided on the outer side of the piston plate, and a push-pull rod is fixedly provided at the center position of the bottom of the piston plate.

[0009] Furthermore, a valve core is fixedly provided at the bottom end of the push-pull rod, a sealing rubber layer is provided on the bottom end surface of the valve core, and the valve core is arranged at the top of the filling channel.

[0010] Furthermore, a feed port is fixedly provided on one side of the valve core corresponding to the valve body, and a sealing sleeve is fixedly provided between the push-pull rod and the valve body.

[0011] Furthermore, the top and bottom of one side of the piston plate are respectively fixedly provided with a second hydraulic port and a first hydraulic port, and the piston plate is slidably mounted inside the top end of the inner cavity.

[0012] Furthermore, a servo motor is fixedly arranged on the outer wall of the valve body corresponding to the bottom of the reflux port, the output shaft of the servo motor is fixedly connected to the center position of the turntable, and the reflux port is fixedly connected to the inner cavity.

[0013] Furthermore, an exhaust port is fixedly provided at the bottom of the servo motor, and the exhaust port is fixedly connected to the exhaust channel, between the turntable exhaust port and the exhaust channel.

[0014] The beneficial effects of the utility model are as follows: the utility model provides a PET bottle filling material reflux device, which drives the turntable to rotate inside the valve body through a servo motor, so that the through hole can be connected to the exhaust port and the exhaust channel, so that the air inside the PET bottle body can be extracted through the exhaust port and the exhaust channel, so that a negative pressure is formed inside the PET bottle body, thereby accelerating the filling speed, and at the same time, when the liquid level inside the PET bottle body is high, the foam generated during filling can be sucked out and the foam can be refluxed; by adjusting the rotation of the turntable, the reflux port can be connected with the inner cavity, so that the remaining material in the inner cavity can be refluxed to a designated place, and the utility model is highly practical; the PET bottle body can be limited by the set fixed cover, thereby improving the stability of the PET bottle. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of a PET bottle filling material reflux device of the utility model;

[0016] Figure 2 This is a front cross-sectional view of a PET bottle filling material reflux device of the utility model;

[0017] Figure 3 The utility model is a PET bottle filling material reflux device Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a turntable structure diagram of a PET bottle filling material reflux device of the utility model;

[0019] In the figure: 1. valve body; 2. feed port; 3. mounting plate; 4. fixing cover; 5. exhaust port; 6. servo motor; 7. reflux port; 8. first hydraulic port; 9. second hydraulic port; 10. PET bottle body; 11. filling head; 12. inner cavity; 13. piston plate; 14. push-pull rod; 15. valve core; 16. filling channel; 17. exhaust channel; 18. turntable; 19. sealing rubber ring; 20. through hole. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] See also Figures 1 to 4 The utility model provides a technical solution: a PET bottle filling material reflux device, comprising a valve body 1, a fixed cover 4 is fixedly arranged on the outer side of the bottom end of the valve body 1, a filling head 11 is fixedly arranged on the bottom end of the valve body 1, a filling channel 16 and an exhaust channel 17 are respectively opened on both sides of the filling head 11, a reflux mechanism is arranged above the exhaust channel 17, the reflux mechanism comprises a reflux port 7, a turntable 18 is rotatably arranged on one side of the reflux port 7 corresponding to the inside of the valve body 1, a through hole 20 is opened inside one end of the turntable 18, sealing rubber rings 19 are fixedly arranged on both sides of the turntable 18 corresponding to the positions of the through holes 20, a PET bottle body 10 is arranged below the fixed cover 4, the through hole 20 is connected to the inner cavity 12 and the reflux port 7 by rotating the turntable 18, so as to facilitate the reflux of the material inside the inner cavity 12, and the sealing rubber ring 19 can improve the sealing between the turntable 18 and the valve body 1 to prevent material leakage.

[0022] In this embodiment, an inner cavity 12 is provided on one side of the interior of the valve body 1, and a hydraulic mechanism is provided on the top of the inner cavity 12. The hydraulic mechanism includes a piston plate 13, a mounting plate 3 is fixedly provided on one side of the valve body 1, and a sealing rubber layer is provided on the outer side of the piston plate 13. A push-pull rod 14 is fixedly provided at the bottom center of the piston plate 13, and a valve core 15 is fixedly provided at the bottom end of the push-pull rod 14. A sealing rubber layer is provided on the bottom end surface of the valve core 15, and the valve core 15 is provided on the top of the filling channel 16. One side of the valve core 15 corresponds to the fixed valve 16 on the valve body 1. A feed port 2 is provided, a sealing sleeve is fixedly provided between the push-pull rod 14 and the valve body 1, a second hydraulic port 9 and a first hydraulic port 8 are fixedly provided on the top and bottom of one side of the piston plate 13, respectively, the piston plate 13 is slidably installed inside the top end of the inner cavity 12, and the piston plate 13 can be raised and lowered by connecting the first hydraulic port 8 and the second hydraulic port 9 to the hydraulic equipment through the hydraulic setting, and the piston plate 13 drives the valve core 15 to be raised and lowered by the push-pull rod 14, so as to facilitate filling, and the sealing between the push-pull rod 14 and the valve body 1 can be improved by the provided sealing sleeve.

[0023] In this embodiment, a servo motor 6 is fixedly provided on the outer wall of the valve body 1 corresponding to the bottom of the reflux port 7, and the output shaft of the servo motor 6 is fixedly connected to the center position of the turntable 18. The reflux port 7 is fixedly connected to the inner cavity 12, and an exhaust port 5 is fixedly provided at the bottom of the servo motor 6. The exhaust port 5 is fixedly connected to the exhaust channel 17. The turntable 18 rotates between the exhaust port 5 of the turntable 18 and the exhaust channel 17 to drive the through hole 20, and connect the through hole 20 with the exhaust port 5 and the exhaust channel 17, so as to facilitate the discharge of the air inside the PET bottle body 10, speed up the filling speed, and also absorb the generated foam through the exhaust channel 17 for reflux.

[0024] When using the PET bottle filling material reflux device, a mounting hole is opened on the mounting plate 3, and the device is fixed to the lifting device through the mounting hole, bolts and the mounting plate 3. The feed port 2 is connected to the delivery pump of the filling machine through a pipeline, the first hydraulic port 8 and the second hydraulic port 9 are connected to the hydraulic equipment, the exhaust port 5 is connected to the buffer tank, and an exhaust fan is installed on the buffer tank. The reflux port 7 is connected to the reflux pump. During filling, the turntable 18 is driven by the servo motor 6 to rotate inside the valve body 1, so that the through hole 20 can connect the exhaust port 5 and the exhaust channel 17. Hydraulic oil is filled into the inner cavity 12 through the hydraulic equipment, the first hydraulic port 8 or the second hydraulic port 9, so that the piston plate 13 can be lifted and lowered conveniently. The piston plate 13 rises and drives the push-pull rod 14 and the valve core 15 to slide and rise, so that the inner cavity 12 is connected with the filling channel 16, and the material enters the interior of the PET bottle body 10 through the inner cavity 12 and the filling channel 16, and the exhaust fan is started at the same time. The exhaust fan extracts the air inside the PET bottle body 10 through the buffer tank, the exhaust port 5 and the exhaust channel 17 to form a negative pressure, which can speed up the filling speed of the material. At the same time, when the liquid level inside the PET bottle body 10 is high, the foam generated during filling can be sucked out and the foam can be refluxed; when not filling, the turntable 18 is driven to rotate by the servo motor 6, and the reflux port 7 is connected with the inner cavity 12 through the through hole 20, and the residual material in the inner cavity 12 is extracted and refluxed to the designated location, which is highly practical.

[0025] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A PET bottle filling material reflux device, comprising a valve body (1), characterized in that: A fixed cover (4) is fixedly arranged on the outer side of the bottom end of the valve body (1), a filling head (11) is fixedly arranged on the bottom end of the valve body (1), a filling channel (16) and an exhaust channel (17) are respectively provided on both sides of the interior of the filling head (11), a reflux mechanism is provided above the exhaust channel (17), the reflux mechanism comprises a reflux port (7), a turntable (18) is rotatably provided on one side of the reflux port (7) corresponding to the interior of the valve body (1), a through hole (20) is provided on one end of the turntable (18), sealing rubber rings (19) are fixedly provided on both sides of the turntable (18) at positions corresponding to the through hole (20), and a PET bottle body (10) is provided below the fixed cover (4).

2. A PET bottle filling material reflux device according to claim 1, characterized in that: An inner cavity (12) is provided on one side of the valve body (1), a hydraulic mechanism is provided on the top of the inner cavity (12), the hydraulic mechanism comprises a piston plate (13), and a mounting plate (3) is fixedly provided on one side of the valve body (1).

3. A PET bottle filling material reflux device according to claim 2, characterized in that: A sealing rubber layer is provided on the outer side of the piston plate (13), and a push-pull rod (14) is fixedly provided at the center position of the bottom of the piston plate (13).

4. A PET bottle filling material reflux device according to claim 3, characterized in that: A valve core (15) is fixedly provided at the bottom end of the push-pull rod (14), a sealing rubber layer is provided on the bottom end surface of the valve core (15), and the valve core (15) is arranged at the top of the filling channel (16).

5. A PET bottle filling material reflux device according to claim 4, characterized in that: A feed port (2) is fixedly provided on one side of the valve core (15) corresponding to the valve body (1), and a sealing sleeve is fixedly provided between the push-pull rod (14) and the valve body (1).

6. A PET bottle filling material reflux device according to claim 2, characterized in that: A second hydraulic port (9) and a first hydraulic port (8) are fixedly provided at the top and bottom of one side of the piston plate (13), respectively, and the piston plate (13) is slidably mounted inside the top end of the inner cavity (12).

7. A PET bottle filling material reflux device according to claim 1, characterized in that: A servo motor (6) is fixedly arranged on the outer wall of the valve body (1) corresponding to the bottom of the reflux port (7), the output shaft of the servo motor (6) is fixedly connected to the center position of the rotating disk (18), and the reflux port (7) is fixedly connected to the inner cavity (12).

8. A PET bottle filling material reflux device according to claim 7, characterized in that: An exhaust port (5) is fixedly provided at the bottom of the servo motor (6), the exhaust port (5) is fixedly connected to an exhaust channel (17), and the rotating disk (18) is between the exhaust port (5) and the exhaust channel (17).

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