Pneumatic continuous rotary lifting device

Abstract

The utility model discloses a pneumatic continuous rotary lifting device which comprises a fixed bottom plate, a gas circuit fixed ring seat and a motor which are arranged on the fixed bottom plate, a gas circuit rotary ring seat connected to the gas circuit fixed ring seat through a rotary bearing, a large gear arranged on the gas circuit rotary ring seat, and an air cylinder arranged on the large gear, the large gear is in meshing transmission with a small gear on the motor, and air inlet and outlet channels used for supplying air to the air cylinder are integrated in the air path fixed ring base and the air path rotating ring base. According to the device, the motor, the small gear, the large gear, the gas circuit fixed ring seat and the gas circuit rotating ring seat are integrated above the fixed bottom plate, the size of the device is greatly reduced, the structure is simplified, the structure is more compact, space is not occupied, and packaging and transportation are convenient; moreover, the gas circuit swivel seat can continuously rotate along with the large gear, and no matter how the gas circuit swivel seat continuously rotates, the gas inlet and outlet channels between the gas circuit swivel seat and the gas circuit fixed ring seat are communicated all the time, so that continuous supply of a gas source of the rotating cylinder can be realized.

Description

Technical Field

[0001] This utility model relates to the field of pneumatic device technology, and more specifically to a pneumatic continuous rotary lifting device. Background Technology

[0002] In the packaging industry, materials need to undergo both rotational and vertical movement to facilitate the wrapping of large items with standard-length packaging film. Rotational movements are typically 360 degrees (one revolution), 720 degrees (two revolutions), 900 degrees (two and a half revolutions), and 1080 degrees (three revolutions) or N revolutions (N can be an integer or a fraction). A search revealed existing technology publication number CN218152904U, entitled "A Rotary Cylinder Air Supply Device," which features a pneumatic rotary joint. Through a rotating shaft, a first air pipe, a third air pipe, an air path connecting block, a second air pipe, and a fourth air pipe, air is supplied to both the first and second cylinders simultaneously as they rotate.

[0003] However, the gas supply device still has some issues that need improvement: for example, the device uses a motor to drive the air outlet to rotate, which in turn causes the shaft, the air connection block, the support disc, the first cylinder, the second cylinder, and the support plate to rotate. Its structure features a relatively long shaft, with the cylinders and air outlet arranged vertically, resulting in a high overall structural integrity, a large volume, a non-compact structure, and difficulty in packaging and transportation.

[0004] Therefore, how to provide a pneumatic continuous rotary lifting device that is small in size, occupies little space, has a compact structure, and is easy to pack and transport is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] In view of this, the present invention provides a pneumatic continuous rotary lifting device that is small in size, occupies little space, has a compact structure, and is easy to pack and transport.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A pneumatic continuous rotary lifting device, comprising:

[0008] Fixed base plate;

[0009] The gas path fixed ring seat has its bottom end fixed on the top of the fixed base plate. The gas path fixed ring seat has two spaced-apart first and second inlet and outlet channels that pass through its upper and lower ends.

[0010] A rotary bearing, wherein the inner ring of the rotary bearing is fitted onto the top of the air passage fixed ring seat;

[0011] A pneumatic swivel seat is fixedly connected to the outer ring of the rotary bearing. The pneumatic swivel seat has two spaced-apart third and fourth inlet / outlet channels that pass through its upper and lower ends. The fourth inlet / outlet channel is located at the rotation center of the pneumatic swivel seat. An annular groove communicating with the lower opening of the third inlet / outlet channel is opened on the bottom surface of the pneumatic swivel seat. The upper opening of the first inlet / outlet channel communicates with the annular groove. The upper opening of the second inlet / outlet channel communicates with the lower opening of the fourth inlet / outlet channel. A first pneumatic connector and a second pneumatic connector are fixed to the upper openings of the third and fourth inlet / outlet channels, respectively.

[0012] A large gear is fixed on the top of the air passage rotating seat, and the large gear has a receiving hole for accommodating the first pneumatic connector and the second pneumatic connector;

[0013] A cylinder, the cylinder being fixed to the top of the large gear, a material platform being fixed to the piston rod of the cylinder, the lower chamber of the cylinder being connected to the first pneumatic connector through a first air pipe, and the upper chamber of the cylinder being connected to the second pneumatic connector through a second air pipe;

[0014] The motor is fixed on the top of the fixed base plate, and a small gear is fixed on the output end of the motor. The small gear meshes with the large gear for transmission.

[0015] As can be seen from the above technical solution, compared with the prior art, this utility model discloses a pneumatic continuous rotary lifting device. In use, the motor drives the small gear to rotate, the small gear drives the large gear to rotate, and then the cylinder rotates, ultimately realizing the rotation of the material platform. At this time, the air circuit rotating ring seat also rotates synchronously. When the material platform needs to rise, the external air source enters the lower chamber of the cylinder through the first inlet and outlet air channel, the annular groove, the third inlet and outlet air channel, and the first air pipe, pushing the piston inside the cylinder to move upward, thereby causing the piston rod to drive the material platform to move upward. At this time, the gas in the upper chamber of the cylinder is exhausted through the second air pipe, the fourth inlet and outlet air channel, and the second inlet and outlet air channel. When the material platform descends, the external air source enters the upper chamber of the cylinder through the second inlet and outlet air channel, the fourth inlet and outlet air channel, and the second air pipe, pushing the piston inside the cylinder to move downward, thereby causing the piston rod to drive the material platform to move downward. At this time, the gas inside the lower chamber of the cylinder is exhausted through the first air pipe, the third inlet and outlet air channel, the annular groove, and the first inlet and outlet air channel.

[0016] Therefore, this device integrates air inlet and outlet channels for driving the cylinder within the air circuit fixed ring seat and air circuit rotating ring seat. The air circuit rotating ring seat rotates continuously following the large gear, and regardless of its rotation, the air inlet and outlet channels between the air circuit rotating ring seat and the air circuit fixed ring seat remain connected, ensuring a continuous supply of air to the rotating cylinder. Furthermore, this device integrates the motor, pinion, large gear, air circuit fixed ring seat, and air circuit rotating ring seat on top of a fixed base plate, significantly reducing the device's size, simplifying the structure, making it more compact, space-saving, and easy to pack and transport.

[0017] Furthermore, it also includes an electronically controlled valve, a first throttle valve, and a second throttle valve. The P port of the electronically controlled valve is connected to a gas source pipe. The A port and B port of the electronically controlled valve are respectively connected to a first connecting pipe and a second connecting pipe. The first connecting pipe is connected to the lower end of the first inlet and outlet air passage, and the second connecting pipe is connected to the lower end of the second inlet and outlet air passage. The first throttle valve is installed on the first connecting pipe, and the second throttle valve is installed on the second connecting pipe.

[0018] The fixed base plate has through holes extending through its upper and lower ends, and both the first connecting pipe and the second connecting pipe are arranged through the through holes.

[0019] The beneficial effects of adopting the above technical solution are: the solenoid valve can control the automatic reversal of the air source of the cylinder, and the first throttle valve and the second throttle valve can control the flow rate of the air source, thereby controlling the adjustment of the cylinder speed, so that the material table can move up and down in an orderly variable speed motion, avoiding repeated packaging and improving the packaging control accuracy.

[0020] Furthermore, it also includes a limiting mounting ring plate, wherein the annular hole of the limiting mounting ring plate is coaxially arranged with the through hole, the limiting mounting ring plate has a limiting flange, and the first mounting plate on the air passage fixed ring seat abuts against the inner side of the limiting flange;

[0021] The first bolt passes through the fixed base plate, the limiting mounting ring plate, and the first mounting plate and is screwed to the inner ring of the rotary bearing.

[0022] The beneficial effects of adopting the above technical solution are: the limiting flange can laterally limit the air passage fixed ring seat, and prevent the lateral movement of the air passage fixed ring seat from affecting the normal rotation of the air passage rotating ring seat.

[0023] Furthermore, a limiting groove is provided on the bottom end surface of the large gear, and the second mounting plate on the top of the air passage rotating ring seat is engaged in the limiting groove.

[0024] The beneficial effect of adopting the above technical solution is that it facilitates the quick positioning and installation of large gears.

[0025] Furthermore, the second bolt passes through the large gear, the second mounting plate, and is screwed to the outer ring of the rotary bearing.

[0026] Furthermore, there are two cylinders. The first air pipe includes a first main air inlet and outlet pipe, two first branch air inlet and outlet pipes, and a first tee. One end of the first main air inlet and outlet pipe is connected to the first pneumatic connector, and the other end is connected to the first interface of the first tee. The second and third interfaces of the first tee are respectively connected to one end of the two branch air inlet and outlet pipes, and the other ends of the two branch air inlet and outlet pipes are respectively connected to the lower chambers of the two cylinders.

[0027] The second air pipe includes a second main air inlet and outlet pipe, two second branch air inlet and outlet pipes, and a second three-way connector. One end of the second main air inlet and outlet pipe is connected to the second pneumatic connector, and the other end is connected to the first interface of the second three-way connector. The second and third interfaces of the second three-way connector are respectively connected to one end of the two branch air inlet and outlet pipes, and the other ends of the two branch air inlet and outlet pipes are respectively connected to the upper chambers of the two cylinders.

[0028] The beneficial effect of adopting the above technical solution is that the air inlet and outlet channels inside the air circuit fixed ring seat and the air circuit rotating ring seat can simultaneously supply air to two cylinders through the three-way valve.

[0029] Furthermore, a sealing ring for sealing the first sealing ring is provided on the bottom end surface of the air passage rotating seat on the outer periphery of the fourth air inlet and outlet channel, and the third air inlet and outlet channel and the annular groove are both located outside the first sealing ring.

[0030] The beneficial effects of adopting the above technical solution are: the first sealing ring can ensure the sealing between the first air inlet / outlet channel and the second air inlet / outlet channel, and between the annular groove and the second air inlet / outlet channel, that is, it ensures that the two air passages are sealed independently and will not leak air, thus ensuring that the cylinder piston extension and retraction movement is normal.

[0031] Furthermore, a second sealing ring is provided on the bottom end face of the air passage rotating ring seat on the outer periphery of the annular groove.

[0032] The beneficial effects of adopting the above technical solution are: ensuring the sealing between the fixed ring seat and the rotating ring seat of the air passage, avoiding air leakage in the annular groove, and preventing air source loss. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of a pneumatic continuous rotary lifting device provided by this utility model.

[0035] Figure 2 This is an enlarged structural diagram of the assembly of the gas path fixed ring seat, the rotary bearing, and the gas path rotating ring seat. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0037] like Figures 1-2 As shown, this utility model embodiment discloses a pneumatic continuous rotary lifting device, comprising:

[0038] Fixed base plate 1;

[0039] The gas path fixed ring seat 2 is fixed at the bottom end on the top of the fixed base plate 1. The gas path fixed ring seat 2 has two spaced-apart first air inlet and outlet channels 201 and second air inlet and outlet channels 202 that pass through its upper and lower ends.

[0040] Rotary bearing 3, the inner ring of rotary bearing 3 is fixed on the top of air passage fixed ring seat 2;

[0041] The air passage rotating ring seat 4 is fixedly connected to the outer ring of the rotary bearing 3. The air passage rotating ring seat 4 has two spaced-apart third air inlet / outlet channels 401 and fourth air inlet / outlet channels 402 that pass through its upper and lower ends. The fourth air inlet / outlet channel 402 is located at the rotation center of the air passage rotating ring seat 4. An annular groove 403 is opened on the bottom end surface of the air passage rotating ring seat 4, which communicates with the lower opening of the third air inlet / outlet channel 401. The upper opening of the first air inlet / outlet channel 201 communicates with the annular groove 403. The upper opening of the second air inlet / outlet channel 202 communicates with the lower opening of the fourth air inlet / outlet channel 402. The upper opening of the third air inlet / outlet channel 401 and the upper opening of the fourth air inlet / outlet channel 402 are respectively fixed with a first pneumatic connector 5 and a second pneumatic connector 6.

[0042] The large gear 7 is fixed on the top of the air passage rotating seat 4. The large gear 7 has a receiving hole 701 for accommodating the first pneumatic connector 5 and the second pneumatic connector 6.

[0043] Cylinder 8 is fixed on the top of the large gear 7. A material platform 29 is fixed on the piston rod at the top of cylinder 8. The lower chamber of cylinder 8 is connected to the first pneumatic connector 5 through the first air pipe, and the upper chamber of cylinder 8 is connected to the second pneumatic connector 6 through the second air pipe.

[0044] Motor 9 is fixed on the top of the fixed base plate 1. A small gear 10 is fixed on the output end of motor 9. The small gear 10 meshes with the large gear 7 for transmission.

[0045] The pneumatic continuous rotary lifting device also includes an electric control valve 11, a first throttle valve 12, and a second throttle valve 13. The P port of the electric control valve 11 is connected to an air source pipe 14. The A port and B port of the electric control valve 11 are respectively connected to a first connecting pipe 15 and a second connecting pipe 16. The first connecting pipe 15 is connected to the lower end of the first air inlet / outlet channel 201, and the second connecting pipe 16 is connected to the lower end of the second air inlet / outlet channel 202. The first throttle valve 12 is installed on the first connecting pipe 15, and the second throttle valve 13 is installed on the second connecting pipe 16.

[0046] A through hole 101 is provided on the fixed base plate 1, which extends through its upper and lower ends. The first connecting pipe 15 and the second connecting pipe 16 are arranged through the through hole 101.

[0047] The pneumatic continuous rotary lifting device also includes a limiting mounting ring plate 17. The ring hole of the limiting mounting ring plate 17 is coaxially arranged with the through hole 101. The limiting mounting ring plate 17 has a limiting flange 171. The first mounting plate 21 on the air passage fixed ring seat 2 abuts against the inner side of the limiting flange 171.

[0048] The first bolt 18 passes through the fixed base plate 1, the limiting mounting ring plate 17, and the first mounting plate 21, and is screwed to the inner ring of the rotary bearing 3.

[0049] A limiting groove 702 is provided on the bottom end surface of the large gear 7, and the second mounting plate 41 on the top of the air passage rotating ring seat 4 is engaged in the limiting groove 702.

[0050] The second bolt 19 passes through the large gear 7, the second mounting plate 41, and is screwed to the outer ring of the rotary bearing 3.

[0051] There are two cylinders 8. The first air pipe includes a first inlet and outlet main pipe 20, two first inlet and outlet branch pipes 22 and a first tee 23. One end of the first inlet and outlet main pipe 20 is connected to the first pneumatic connector 5, and the other end is connected to the first interface of the first tee 23. The second interface and the third interface of the first tee 23 are respectively connected to one end of the two first inlet and outlet branch pipes 22, and the other end of the two first inlet and outlet branch pipes 22 are respectively connected to the lower chamber of the two cylinders 8.

[0052] The second air pipe includes a second main air inlet / outlet pipe 24, two second branch air inlet / outlet pipes 25, and a second tee 26. One end of the second main air inlet / outlet pipe 24 is connected to the second pneumatic connector 6, and the other end is connected to the first interface of the second tee 26. The second and third interfaces of the second tee 26 are respectively connected to one end of the two branch air inlet / outlet pipes 25, and the other ends of the two branch air inlet / outlet pipes 25 are respectively connected to the upper chambers of the two cylinders 8.

[0053] The bottom surface of the air passage rotating seat 4 is provided with a first sealing ring 27 on the outer periphery of the fourth air inlet / outlet channel 402. The third air inlet / outlet channel 401 and the annular groove 403 are both located outside the first sealing ring 27.

[0054] A second sealing ring 28 is provided on the bottom end face of the air passage rotating seat 4 on the outer periphery of the annular groove 403.

[0055] The beneficial effects of this device are:

[0056] 1. By integrating the air inlet and outlet channels for driving the cylinder inside the air circuit fixed ring seat and air circuit rotating ring seat, and the air circuit rotating ring seat can rotate continuously with the large gear, and no matter how the air circuit rotating ring seat rotates continuously, the air inlet and outlet channels between the air circuit rotating ring seat and the air circuit fixed ring seat are always connected, so as to realize the continuous supply of air source to the rotating cylinder.

[0057] 2. This device integrates the motor, pinion, gear, air circuit fixed ring seat, and air circuit rotating ring seat on the top of the fixed base plate, which greatly reduces the size of the device, simplifies the structure, makes the structure more compact, does not occupy space, and is easy to pack and transport.

[0058] 3. By using a motor, which drives a large gear through a small gear, the rotation control precision can be improved to meet packaging requirements.

[0059] 4. When the material (work) platform needs to be raised or lowered, it can be controlled by a cylinder and a throttle valve that controls the cylinder speed.

[0060] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0061] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pneumatic continuous rotary lifting device, characterized in that, include: Fixed base plate (1); The gas path fixed ring seat (2) has its bottom end fixed on the top of the fixed base plate (1). The gas path fixed ring seat (2) has two spaced-apart first inlet and outlet channels (201) and second inlet and outlet channels (202) that pass through its upper and lower ends. A rotary bearing (3), the inner ring of which is fixed on the top of the air passage fixed ring seat (2); A pneumatic ring seat (4) is fixedly connected to the outer ring of the rotary bearing (3). The pneumatic ring seat (4) has two spaced-apart third inlet / outlet channels (401) and fourth inlet / outlet channels (402) that pass through its upper and lower ends. The fourth inlet / outlet channel (402) is located at the rotation center of the pneumatic ring seat (4). The bottom end face of the pneumatic ring seat (4) is provided with a structure that connects to the third inlet / outlet channel. The lower opening of (401) is connected to the annular groove (403), the upper opening of the first air inlet / outlet channel (201) is connected to the annular groove (403), the upper opening of the second air inlet / outlet channel (202) is connected to the lower opening of the fourth air inlet / outlet channel (402), and the upper opening of the third air inlet / outlet channel (401) and the upper opening of the fourth air inlet / outlet channel (402) are respectively fixed with a first pneumatic connector (5) and a second pneumatic connector (6). Large gear (7), the large gear (7) is fixed on the top of the air passage rotating seat (4), and the large gear (7) has a receiving hole (701) for accommodating the first pneumatic connector (5) and the second pneumatic connector (6); Cylinder (8), the cylinder (8) is fixed on the top of the large gear (7), a material platform (29) is fixed on the piston rod of the cylinder (8), the lower chamber of the cylinder (8) is connected to the first pneumatic connector (5) through the first air pipe, and the upper chamber of the cylinder (8) is connected to the second pneumatic connector (6) through the second air pipe. The motor (9) is fixed on the top of the fixed base plate (1). A small gear (10) is fixed on the output end of the motor (9). The small gear (10) meshes with the large gear (7) for transmission.

2. The pneumatic continuous rotary lifting device according to claim 1, characterized in that, It also includes an electric control valve (11), a first throttle valve (12), and a second throttle valve (13). The P port of the electric control valve (11) is connected to a gas source pipe (14). The A port and B port of the electric control valve (11) are respectively connected to a first connecting pipe (15) and a second connecting pipe (16). The first connecting pipe (15) is connected to the lower end of the first inlet and outlet air passage (201), and the second connecting pipe (16) is connected to the lower end of the second inlet and outlet air passage (202). The first throttle valve (12) is installed on the first connecting pipe (15), and the second throttle valve (13) is installed on the second connecting pipe (16). The fixed base plate (1) has a through hole (101) extending through its upper and lower ends, and the first connecting pipe (15) and the second connecting pipe (16) are arranged through the through hole (101).

3. The pneumatic continuous rotary lifting device according to claim 2, characterized in that, It also includes a limiting mounting ring plate (17), the annular hole of the limiting mounting ring plate (17) is coaxially arranged with the through hole (101), the limiting mounting ring plate (17) has a limiting flange (171), and the first mounting plate (21) on the air passage fixed ring seat (2) abuts against the inner side of the limiting flange (171); The first bolt (18) passes through the fixed base plate (1), the limiting mounting ring plate (17), and the first mounting plate (21) and is screwed to the inner ring of the rotary bearing (3).

4. A pneumatic continuous rotary lifting device according to any one of claims 1-3, characterized in that, A limiting groove (702) is provided on the bottom end surface of the large gear (7), and the second mounting plate (41) on the top of the air passage rotating ring seat (4) is engaged in the limiting groove (702).

5. A pneumatic continuous rotary lifting device according to claim 4, characterized in that, The second bolt (19) passes through the large gear (7), the second mounting plate (41) and is screwed to the outer ring of the rotary bearing (3).

6. A pneumatic continuous rotary lifting device according to any one of claims 1-3 and 5, characterized in that, There are two cylinders (8). The first air pipe includes a first inlet and outlet main pipe (20), two first inlet and outlet branch pipes (22) and a first tee (23). One end of the first inlet and outlet main pipe (20) is connected to the first pneumatic connector (5), and the other end is connected to the first interface of the first tee (23). The second and third interfaces of the first tee (23) are respectively connected to one end of the two first inlet and outlet branch pipes (22), and the other end of the two first inlet and outlet branch pipes (22) are respectively connected to the lower chamber of the two cylinders (8). The second air pipe includes a second main air inlet / outlet pipe (24), two second branch air inlet / outlet pipes (25), and a second tee (26). One end of the second main air inlet / outlet pipe (24) is connected to the second pneumatic connector (6), and the other end is connected to the first interface of the second tee (26). The second and third interfaces of the second tee (26) are respectively connected to one end of the two branch air inlet / outlet pipes (25), and the other ends of the two branch air inlet / outlet pipes (25) are respectively connected to the upper chambers of the two cylinders (8).

7. A pneumatic continuous rotary lifting device according to any one of claims 1-3 and 5, characterized in that, The bottom surface of the air passage rotating seat (4) is provided with a first sealing ring (27) on the outer periphery of the fourth air inlet / outlet channel (402). The third air inlet / outlet channel (401) and the annular groove (403) are both located outside the first sealing ring (27).

8. A pneumatic continuous rotary lifting device according to any one of claims 1-3 and 5, characterized in that, The air passage rotating seat (4) has a second sealing ring (28) on the outer periphery of the annular groove (403) on the bottom end surface.

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