Stable anti-blocking feeding bearing structure of pc luggage plate drawing machine

Abstract

The invention relates to the technical field of case processing and conveying, and discloses a stable anti-blocking feeding bearing structure of a pc case plate drawing machine, which comprises a support plate, a roll shaft is rotatably mounted on the support plate through a bearing, PC cases are conveyed through the roll shaft, the roll shaft is sleeved with a mounting lantern ring, the mounting lantern ring is sleeved with a buffer ring, the buffer ring is sleeved with the bearing, and the bearing sleeves the buffer ring. An insertion block is installed on the bearing, a first annular inner cavity is formed in the installation lantern ring, and one end of the insertion block penetrates through the buffer ring and extends into the first annular inner cavity. Compared with the prior art that the bearing is directly arranged on the roller shaft in a sleeving mode, the bearing is connected with the roller shaft in the mode that the buffering assembly is arranged in the middle, and the service life of the bearing is prolonged under the condition that rotation of the roller shaft is not affected.

Description

Technical Field

[0001] The invention relates to the technical field of luggage processing and conveying equipment, and in particular to a stable and anti-blocking feeding bearing structure of a PC luggage pumping machine. Background Art

[0002] The PC luggage plate drawing machine is a professional equipment used to produce PC (polycarbonate) luggage plate. It is widely used in the manufacturing of luggage such as trolley cases, suitcases, and leisure bags. Its core function is to process PC raw materials into plates that meet the production needs of luggage through high-temperature melting, extrusion, and molding. After production is completed, the finished product is transported to the next process through multiple rollers.

[0003] In the prior art, there is a stable and anti-blocking feeding bearing structure of a PC bag pumping machine and a method of using the same (publication number: CN117142051A); its structure includes a conveying table; a cutting table is fixedly connected to one side of the conveying table, and a cutting machine is provided on the top of the cutting table; although the stable and anti-blocking feeding bearing structure of the PC bag pumping machine can facilitate the addition of lubricating oil into the storage box by providing an injection pipe, when the rotating shaft shakes slightly due to a jam, the top of the transmission shaft will touch the pulley, causing the pulley and the blocking block to move slightly upward, causing the blocking block to displace, and the lubricating oil in the storage box can flow downward through the injection cavity into the connection between the transmission shaft and the feed roller, and the bearing structure at the connection between the transmission shaft and the feed roller can be lubricated. After the transmission shaft is lubricated, it will not cause impact on the pulley and the blocking block, and the blocking block will also seal the bottom of the injection cavity through the pressure of the lubricating oil, thereby achieving the effect of automatically adding lubricating oil when the transmission shaft is jammed.

[0004] However, in actual use, the shaft will be subjected to the downward pressure of the PC bags during the transportation of the PC bags. Moreover, since different parts of the PC bags have different weights and vibrations will be generated during the transportation process, the vibrations will apply different pressures to the shaft. These pressures will act on the bearings, causing greater pressure on the bearing parts. The pressure will cause uneven force on the bearings, which will easily accelerate the damage to the bearings and reduce the service life of the bearings. Summary of the Invention

[0005] The object of the present invention is to provide a stable and anti-blocking feeding bearing structure for a PC bag drawer to solve the problems raised in the above background technology.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention discloses a stable and anti-blocking feeding bearing structure for a PC bag drawing machine, comprising a bracket plate, a roller shaft being rotatably mounted on the bracket plate through a bearing, and PC bags being transported by the roller shaft, a mounting collar being sleeved on the roller shaft, a buffer ring being sleeved on the mounting collar, an insert block being mounted on the bearing, an annular inner cavity being formed on the mounting collar, one end of the insert block passing through the buffer ring and extending into an annular chamber, an annular airbag being arranged in the annular chamber, an outer wall of the annular airbag being adhesively connected to one side of the insert block, a buffer spring being mounted in the annular airbag, the buffer spring being located below the insert block and being used to provide support force for the insert block.

[0008] Furthermore, a plurality of annular grooves are provided on the buffer ring, so that the buffer ring can generate more elastic deformation when subjected to vibration and absorb more vibration energy.

[0009] Furthermore, a mounting frame is provided on the roller shaft, the bearing is located in the mounting frame, the mounting frame is connected to the bracket plate, a connecting ring is provided on the bearing, the connecting ring is connected to the mounting frame, the mounting frame and the connecting ring form a limit on the outside of the bearing, and the connection between the mounting frame and the bearing uses a rubber sleeve as a connecting component for connection contact.

[0010] Furthermore, a rubber sleeve is provided on the insert block, and the thickness of the rubber sleeve is about three millimeters. The outer ring of the rubber sleeve is in contact with the mounting ring, thereby separating the mounting ring and the bearing. The middle part is filled with rubber material to reduce the vibration force on the mounting ring acting on the bearing.

[0011] Furthermore, the bearing is composed of an inner bearing ring and an outer bearing ring, and an annular inner cavity 2 is provided on the inner bearing ring and the outer bearing ring. Oil holes are provided on the inner walls of the grooves of the inner bearing ring and the outer bearing ring, and the oil holes are connected to the annular inner cavity 2. Through the setting of the oil holes and the annular inner cavity 2, an extrusion buffer can be provided for the lubricating oil in the bearing, thereby reducing the extrusion force on the oil seal on the bearing.

[0012] Furthermore, an oil guide cylinder is installed on the mounting ring, which is connected to the annular airbag, a pushing piston frame is slidingly arranged in the oil guide cylinder, a return spring is provided in the oil guide cylinder, and the return spring is connected to the pushing piston frame, and is used to restore the pushing piston frame to its original state when the pushing piston frame is not affected by external force. An oil storage frame is rotatably installed on the mounting frame, an oil guide pipe is installed on the oil guide cylinder, and the oil guide pipe is connected to the oil storage frame, an oil guide pipe is installed on the oil guide cylinder, and the other end of the oil guide pipe is connected to the annular inner cavity 2 on the inner bearing ring, an oil return pipe is installed on the oil storage frame, and the oil return pipe is connected to the annular inner cavity 2 on the outer bearing ring, and a one-way valve is provided on the oil guide pipe 1, the oil guide pipe 2 and the oil return pipe.

[0013] Furthermore, parts of the oil guide pipe 1 and the oil guide pipe 2 are both made of soft pipes to avoid interference with the vibration of the mounting collar.

[0014] Furthermore, a partition is provided in the oil guide cylinder, which is located between oil guide pipe 1 and oil guide pipe 2, and the bottom of the partition is inclined to separate the lubricating oil entering the oil guide cylinder, so as to prevent part of the lubricating oil from being in the oil guide cylinder for a long time, causing the lubricating oil to deteriorate and affecting the lubrication effect.

[0015] Furthermore, an air guide cylinder is installed on the oil guide cylinder, and a pushing piston frame 2 is provided in the air guide cylinder. Part of the pushing piston frame 2 extends into the oil guide cylinder and moves with the movement of the pushing piston frame 1. An annular air guide frame is installed on the oil storage frame, and the annular air guide frame is connected with the air guide cylinder through an air guide pipe. A positioning cylinder is installed on the oil storage frame, and the positioning cylinder is connected with the annular air guide frame. A movable cylinder is provided with a sliding sleeve on the positioning cylinder, and a reset spring 2 is provided on the positioning cylinder. One end of the reset spring 2 is connected to the movable cylinder, and is used to keep the movable cylinder in a relatively stable state when the movable cylinder is not subjected to external force. The outer ring of the movable cylinder is provided with a ring sheet.

[0016] Furthermore, in the process of the oil storage frame rotating with the installation sleeve, a centrifugal force is applied to the movable cylinder. Under the action of the centrifugal force, it will be converted into a pulling force on the piston frame 2, and then act on the annular airbag by pushing the piston frame 1, so that the annular airbag is affected by a contraction force. The contraction force then acts on the plug block, giving the plug block a pulling force, making the connection between the bearing and the installation sleeve and the buffer ring more stable, ensuring the buffering and shock absorption of the installation sleeve by the buffer ring.

[0017] Furthermore, when the roller is vibrated, the vibration force will cause the mounting ring to shift, and then the insert will squeeze the annular airbag. The squeezing force pushes the piston frame to move, and then pushes the lubricating oil in the oil guide cylinder to act on the bearing. The push of the piston frame one will drive the movement of the piston frame two, and then the airflow in the air guide cylinder will indirectly act on the positioning cylinder and push the movable cylinder to move. The movement of the movable cylinder acts on the oil storage frame, so that the lubricating oil in the oil storage frame forms a flowing state, thereby ensuring the quality of the lubricating oil.

[0018] The present invention has the following beneficial effects:

[0019] (1) Compared with the prior art in which the bearing is directly sleeved on the roller shaft, the present invention connects the bearing and the roller shaft by setting a buffer assembly in the middle, thereby improving the service life of the bearing without affecting the rotation of the roller shaft. Specifically, a mounting ring and a buffer ring are set between the bearing and the roller shaft, and an insert is set inside the inner bearing ring. A rubber sleeve is sleeved on the insert, and the insert is inserted into the mounting ring and slidably connected to the mounting ring, thereby making the bearing and the mounting ring separated. The buffer ring and the rubber sleeve effectively reduce the vibration on the roller shaft from being transmitted to the bearing, thereby avoiding the situation where some parts of the bearing are subjected to excessive force due to the vibration of the roller shaft, thereby improving the protection effect on the bearing and ensuring the service life of the bearing.

[0020] (2) The present invention forms a thrust for the plug-in block by providing an annular airbag and a buffer spring, thereby ensuring the stable placement of the plug-in block. At the same time, the outward pressure of the airflow generated by the squeezing of the annular airbag by the plug-in block is used to transport the lubricating oil in the oil storage frame to the bearing under the action of the oil guide cylinder and the pushing piston frame, thereby forming an automated oil delivery mechanism. The lubricating oil can be continuously and intermittently delivered to the bearing as the roller vibrates, thereby avoiding the phenomenon of increased friction of the bearing due to insufficient lubricating oil, thereby ensuring the safety of the bearing.

[0021] (3) The present invention drives the piston frame 2 to move in the process of pushing the piston frame 1 to move, and then transmits the airflow in the air guide cylinder to the positioning cylinder, so that the movable cylinder moves. The movement of the movable cylinder can drive the lubricating oil in the oil storage frame to flow, thereby avoiding the long-term accumulation of the lubricating oil and causing qualitative changes, ensuring the quality of the lubricating oil, and indirectly improving the protection effect on the bearing. At the same time, in the process of the roller shaft rotating, the oil storage frame rotates with the installation ring, thereby generating centrifugal force, which will form a pull on the movable cylinder. The pulling force acts on the pushing piston frame 2 through the transmission of the airflow, and then acts on the pushing piston frame 1, thereby forming a pull on the annular airbag. In the process of pulling the annular airbag, the pulling force directly acts on the plug block. By pulling the plug block, the connection between the bearing and the installation ring is made more stable, thereby better exerting the buffering effect of the buffer ring.

[0022] (3) The present invention provides a fan plate on the outside of the oil storage frame, which can convert the rotational force into the power to drive the air flow during the rotation of the oil storage frame along with the installation ring. Under the action of the connecting ring and the heat dissipation holes thereon, the bearing can be cooled to avoid excessive heat in the bearing, which affects the lubricating effect of the lubricating oil and further improves the protection effect of the bearing.

[0023] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a structural diagram of the installation frame in the present invention;

[0027] Figure 3 It is a schematic cross-sectional view of the present invention;

[0028] Figure 4 for Figure 3 The enlarged structural diagram of part A is shown;

[0029] Figure 5 Schematic diagram of the connection structure of the bearing, mounting collar and oil storage frame in the present invention;

[0030] Figure 6 Schematic diagram of the structure of the bearing in the present invention;

[0031] Figure 7 This is a schematic diagram of the structure of the mounting ring in the present invention;

[0032] Figure 8 It is a structural schematic diagram of the buffer ring in the present invention.

[0033] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0034] In the figure: 1. bracket plate; 2. roller; 3. mounting frame; 4. bearing; 401. inner bearing ring; 402. outer bearing ring; 5. mounting ring; 6. buffer ring; 7. insert; 8. air bag; 9. oil guide cylinder; 10. push piston frame 1; 11. oil storage frame; 12. oil guide pipe 1; 13. oil guide pipe 2; 14. partition; 15. air guide cylinder; 16. push piston frame 2; 17. annular air guide frame; 18. air guide pipe; 19. positioning cylinder; 20. movable cylinder; 21. oil return pipe; 22. fan plate; 23. connecting ring. DETAILED DESCRIPTION

[0035] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0036] See also Figures 1-8 As shown, the present invention is a stable and anti-blocking feeding bearing structure of a PC bag pumping machine, including a bracket plate 1, a roller shaft 2 is rotatably installed on the bracket plate 1 through a bearing 4, and the PC bags are transported by the roller shaft 2, and the bearing 4 is composed of an inner bearing ring 401 and an outer bearing ring 402, and an annular inner cavity 2 is provided on the inner bearing ring 401 and the outer bearing ring 402. The inner bearing ring 401 and the outer bearing ring 402 are both provided with an annular inner cavity 2, and the inner wall of the groove of the inner bearing ring 401 and the outer bearing ring 402 is provided with an oil through hole, and the oil through hole is connected with the annular inner cavity 2. Through the arrangement of the oil through hole and the annular inner cavity 2, an extrusion buffer can be provided for the lubricating oil in the bearing 4, thereby reducing the extrusion force on the oil seal on the bearing 4, a mounting ring 5 is sleeved on the roller shaft 2, a buffer ring 6 is sleeved on the mounting ring 5, and the bearing 4 is sleeved on the buffer ring 6, and an insert block 7 is installed on the bearing 4, and an annular inner cavity 1 is provided on the mounting ring 5. One end of the insert block 7 passes through the buffer ring 6 and extends into the annular chamber 1, and a plurality of annular grooves are provided on the buffer ring 6 to provide a buffer ring 6 with a lubricating oil seal when the bearing 4 is subjected to the oil seal. When vibrating, it can produce more elastic deformation and absorb more vibration energy; an annular airbag 8 is provided in the annular chamber 1, and the outer wall of the annular airbag 8 is glued and connected to one side of the plug block 7. A buffer spring 1 is installed in the annular airbag 8, and the buffer spring 1 is located below the plug block 7 and is used to provide support for the plug block 7. A mounting frame 3 is sleeved on the roller shaft 2, and the bearing 4 is located in the mounting frame 3. The mounting frame 3 is connected to the bracket plate 1, and a connecting ring 23 is sleeved on the bearing 4. The connecting ring 23 is connected to the mounting frame 3, and the outside of the bearing 4 is limited by the mounting frame 3 and the connecting ring 23. The connection between the mounting frame 3 and the bearing 4 is connected with a rubber sleeve 2 as a connecting component. A rubber sleeve 1 is sleeved on the plug block 7, and the thickness of the rubber sleeve 1 is about three millimeters. The outer ring of the rubber sleeve 1 is in contact with the mounting ring 5, thereby making the mounting ring 5 and the bearing 4 in a separated state, and the middle part is filled with rubber material to reduce the vibration force on the mounting ring 5 acting on the bearing 4.

[0037] The oil pump 11 is connected to the oil pump housing 1 by the oil pump 21, and the oil pump 21 is connected to the oil pump housing 1 by the oil pump 22. An annular baffle is installed on the frame 3, one side of the annular baffle extends into the annular groove and is rotatably connected with the annular groove, the annular baffle is in a fixed connection state, and the oil storage frame 11 is in a rotationally connected state, one end of the return oil pipe 21 passes through the annular baffle and extends into the oil storage frame 11, and an annular filter plate is provided on the annular baffle to facilitate air flow, and the return oil pipe 21 is connected with the annular inner cavity 2 on the outer bearing ring 402, and a one-way valve is provided on the oil guide pipe 12, the oil guide pipe 2 13 and the oil return pipe 21. Parts of the oil guide pipe 1 12 and the oil guide pipe 2 13 are all composed of soft pipes to avoid obstruction with the vibration of the mounting collar 5, and a partition 14 is provided in the oil guide cylinder 9. The partition 14 is located between the oil guide pipe 1 12 and the oil guide pipe 2 13, and the bottom of the partition 14 is inclined to separate the lubricating oil entering the oil guide cylinder 9, so as to avoid part of the lubricating oil from being in the oil guide cylinder 9 for a long time, causing the lubricating oil to deteriorate and affecting the lubrication effect.

[0038] An air guide cylinder 15 is installed on the oil guide cylinder 9, and a pushing piston frame 16 is provided in the air guide cylinder 15. The part of the pushing piston frame 16 extends into the oil guide cylinder 9 and moves with the movement of the pushing piston frame 10. An annular air guide frame 17 is installed on the oil storage frame 11, and the annular air guide frame 17 is connected with the air guide cylinder 15 through an air guide pipe 18. A positioning cylinder 19 is installed on the oil storage frame 11, and the positioning cylinder 19 is connected with the annular air guide frame 17. A movable cylinder 20 is provided on the sliding sleeve of the positioning cylinder 19, and a reset spring 2 is provided on the positioning cylinder 19. One end of the reset spring 2 is connected to the movable cylinder 20, and is used to keep the movable cylinder 20 in a relatively stable state when the movable cylinder 20 is not subjected to external force. The outer ring of the movable cylinder 20 is provided with a ring sheet.

[0039] In the process of the oil storage frame 11 rotating with the installation ring 5, a centrifugal force is applied to the movable cylinder 20. Under the action of the centrifugal force, it will be converted into a pulling force on the piston frame 2 16, and then the piston frame 1 10 is pushed to act on the annular airbag 8, so that the annular airbag 8 is affected by a contraction force. The contraction force then acts on the plug block 7, giving the plug block 7 a pulling force, making the connection between the bearing 4 and the installation ring 5 and the buffer ring 6 more stable, ensuring the buffering and shock absorption of the installation ring 5 by the buffer ring 6. When the roller shaft 2 is vibrated, the vibration force It will cause the mounting ring 5 to deviate, and then the insert block 7 will squeeze the annular airbag 8. The squeezing force will push the piston holder 10 to move, and then push the lubricating oil in the oil guide cylinder 9 to act on the bearing 4. The push of the piston holder 10 will drive the piston holder 2 16 to move, and then the airflow in the air guide cylinder 15 will indirectly act on the positioning cylinder 19 and push the movable cylinder 20 to move. The movement of the movable cylinder 20 will act on the oil storage frame 11, so that the lubricating oil in the oil storage frame 11 forms a flowing state, thereby ensuring the quality of the lubricating oil.

[0040] Annular grooves are provided on the outer walls of both sides of the mounting frame 3, and annular filter plates are installed in the annular grooves. A fan plate 22 is installed on the outer ring of the oil storage frame 11, and a plurality of heat dissipation holes are provided on the connecting ring 23. When the mounting ring 5 drives the oil storage frame 11 to rotate, the air flow will be agitated, and the air flow will pass through the heat dissipation holes, at which time the heat on the connecting ring 23 will be taken away, thereby cooling the connecting ring 23, and then indirectly cooling the bearing 4, thereby ensuring the service life of the bearing 4.

[0041] When in use, the bearing 4 is installed on the roller shaft 2 along with the mounting ring 5, and the bearing 4 is connected to the bracket plate 1 through the mounting frame 3 to form a support for the roller shaft 2. When the roller shaft 2 is transporting PC bags, it is subjected to vibration and extrusion. By replacing the buffer ring 6 and the rubber sleeve, the vibration force can be reduced, reducing the impact on the bearing 4, thereby avoiding the situation where part of the bearing 4 is subjected to excessive force, improving the protection of the bearing 4, and extending the service life of the bearing 4;

[0042] When the mounting collar 5 vibrates and deflects, the annular airbag 8 is squeezed through the insert block 7, thereby causing the piston frame 10 to move. When the piston frame 10 is pushed outward, the lubricating oil in the oil guide cylinder 9 is pushed through the oil guide pipe 2 13 to act on the bearing 4, thereby supplying oil to the bearing 4 and preventing the lack of lubricating oil in the bearing 4 from causing increased friction of the bearing 4 and reducing the service life of the bearing 4. When the piston frame 10 is pushed inward, the lubricating oil in the oil storage frame 11 is absorbed into the oil guide cylinder 9 through the oil guide pipe 12, thereby forming a continuous supply of lubricating oil.

[0043] When the piston holder 10 is pushed to move, the piston holder 2 16 will be pushed to move accordingly, and then the gas in the gas guide cylinder 15 will flow into the positioning cylinder 19, and then the movable cylinder 20 will be pushed to move. The movement of the movable cylinder 20 can make the lubricating oil in the oil storage frame 11 flow, thereby ensuring the fluidity of the lubricating oil and the quality of the lubricating oil.

[0044] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A stable anti-blocking feeding bearing structure for a PC bag pumping machine, comprising a support plate (1), a roller (2) rotatably mounted on the support plate (1) via a bearing (4), and PC bags are transported via the roller (2), characterized in that: The roller shaft (2) is provided with a mounting collar (5), a buffer ring (6) is provided on the mounting collar (5), the bearing (4) is provided on the buffer ring (6), an insert (7) is provided on the bearing (4), an annular inner cavity (1) is provided on the mounting collar (5), and one end of the insert (7) passes through the buffer ring (6) and extends into the annular cavity (1); An annular airbag (8) is provided in the annular chamber (1), the outer wall of the annular airbag (8) is adhesively connected to one side of the insert (7), and a buffer spring (1) is installed in the annular airbag (8). The buffer spring (1) is located below the insert (7) and is used to provide support force for the insert (7).

2. A stable and anti-blocking feeding bearing structure for a PC bag pumping machine according to claim 1, characterized in that: The buffer ring (6) is provided with a plurality of annular grooves, so that the buffer ring (6) can generate more elastic deformation when subjected to vibration and absorb more vibration energy.

3. A stable and anti-blocking feeding bearing structure for a PC bag pumping machine according to claim 2, characterized in that: A mounting frame (3) is sleeved on the roller shaft (2), a bearing (4) is located in the mounting frame (3), the mounting frame (3) is connected to the bracket plate (1), a connecting ring (23) is sleeved on the bearing (4), the connecting ring (23) is connected to the mounting frame (3), the outer portion of the bearing (4) is limited by the mounting frame (3) and the connecting ring (23), and a rubber sleeve is used as a connecting component at the connection between the mounting frame (3) and the bearing (4) for connection contact.

4. A stable and anti-blocking feeding bearing structure for a PC bag pumping machine according to claim 2, characterized in that: A rubber sleeve is sleeved on the insert (7), and the thickness of the rubber sleeve is about three millimeters. The outer ring of the rubber sleeve is in contact with the mounting ring (5), thereby making the mounting ring (5) and the bearing (4) in a separated state. The middle part is filled with rubber material to reduce the vibration force on the mounting ring (5) acting on the bearing (4).

5. The stable and anti-blocking feeding bearing structure of a PC bag pumping machine according to claim 3 is characterized by: The bearing (4) is composed of an inner bearing ring (401) and an outer bearing ring (402). The inner bearing ring (401) and the outer bearing ring (402) are both provided with an annular inner cavity 2. The inner walls of the grooves of the inner bearing ring (401) and the outer bearing ring (402) are both provided with oil holes, which are connected to the annular inner cavity 2. The arrangement of the oil holes and the annular inner cavity 2 can provide an extrusion buffer for the lubricating oil in the bearing (4), thereby reducing the extrusion force on the oil seal on the bearing (4).

6. A stable and anti-blocking feeding bearing structure for a PC bag pumping machine according to claim 4, characterized in that: An oil guide cylinder (9) is installed on the mounting ring (5), and the oil guide cylinder (9) is connected to the annular air bag (8). A push piston frame (10) is slidably provided in the oil guide cylinder (9), and a return spring (1) is provided in the oil guide cylinder (9). The return spring (1) is connected to the push piston frame (10) and is used to restore the push piston frame (10) to its original state when the push piston frame (10) is not affected by external forces. An oil storage frame (11) is rotatably installed on the mounting frame (3). An oil guide pipe (12) is installed, and the oil guide pipe (12) is communicated with the oil storage frame (11). An oil guide pipe (13) is installed on the oil guide cylinder (9), and the other end of the oil guide pipe (13) is communicated with the annular inner cavity (2) on the inner bearing ring (401). An oil return pipe (21) is installed on the oil storage frame (11), and the oil return pipe (21) is communicated with the annular inner cavity (2) on the outer bearing ring (402). One-way valves are provided on the oil guide pipe (12), the oil guide pipe (13) and the oil return pipe (21).

7. The stable and anti-blocking feeding bearing structure of a PC bag pumping machine according to claim 5 is characterized by: The parts of the oil guide pipe 1 (12) and the oil guide pipe 2 (13) are both made of soft pipes to avoid being hindered by the vibration of the installation ring (5).

8. The stable and anti-blocking feeding bearing structure of a PC bag pumping machine according to claim 6 is characterized by: A partition (14) is provided in the oil guide cylinder (9), and the partition (14) is located between the first oil guide pipe (12) and the second oil guide pipe (13). The bottom of the partition (14) is inclined and is used to separate the lubricating oil entering the oil guide cylinder (9), so as to prevent part of the lubricating oil from being located in the oil guide cylinder (9) for a long time, causing the lubricating oil to deteriorate and affecting the lubrication effect.

9. The stable and anti-blocking feeding bearing structure of a PC bag pumping machine according to claim 7 is characterized by: An air guide cylinder (15) is installed on the oil guide cylinder (9), and a second pushing piston frame (16) is arranged in the air guide cylinder (15). A portion of the second pushing piston frame (16) extends into the oil guide cylinder (9) and moves with the movement of the first pushing piston frame (10). An annular air guide frame (17) is installed on the oil storage frame (11). The annular air guide frame (17) is communicated with the air guide cylinder (15) through an air guide pipe (18). A positioning cylinder (19) is installed on the oil storage frame (11). The positioning cylinder (19) is communicated with the annular air guide frame (17). A movable cylinder (20) is slidably sleeved on the positioning cylinder (19). A reset spring (2) is arranged on the positioning cylinder (19). One end of the reset spring (2) is connected to the movable cylinder (20) and is used to keep the movable cylinder (20) in a relatively stable state when the movable cylinder (20) is not subjected to external force. The outer ring of the movable cylinder (20) is provided with a ring sheet.

10. The stable and anti-blocking feeding bearing structure of a PC bag pumping machine according to claim 8, characterized in that: During the process of the oil storage frame (11) rotating with the mounting collar (5), a centrifugal force is applied to the movable cylinder (20). Under the action of the centrifugal force, the centrifugal force is converted into a pulling force on the second piston rack (16), and then acts on the annular airbag (8) by pushing the first piston rack (10), so that the annular airbag (8) is affected by a contraction force. The contraction force then acts on the plug block (7), giving the plug block (7) a pulling force, making the connection between the bearing (4) and the mounting collar (5) and the buffer ring (6) more stable, thereby ensuring that the buffer ring (6) buffers and reduces shock on the mounting collar (5).

11. The stable and anti-blocking feeding bearing structure of a PC bag pumping machine according to claim 9, characterized in that: When the roller (2) is vibrated, the vibration force will cause the mounting ring (5) to deviate, and then the insert (7) will squeeze the annular airbag (8). The squeezing force will push the piston frame (10) to move, and then push the lubricating oil in the oil guide cylinder (9) to act on the bearing (4). The push of the piston frame (10) will drive the piston frame (16) to move, and then the air flow in the air guide cylinder (15) will indirectly act on the positioning cylinder (19) and push the movable cylinder (20) to move. Through the movement of the movable cylinder (20), the air flow will act on the oil storage frame (11), so that the lubricating oil in the oil storage frame (11) will form a flowing state, thereby ensuring the quality of the lubricating oil.

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