Left side paper jam pressing push rod oil leakage prevention device of small box packaging machine

Abstract

The utility model discloses a small box packaging machine left side paper jamming compression push rod oil leakage prevention device, paper jamming compression push rod rear section is slid in the internal hole of paper jamming compression seat, the rack section of paper jamming compression push rod rear section is exposed from the avoidance groove of paper jamming compression seat, and the front end of paper jamming compression push rod passes through inner flange, oil seal and outer flange hole in proper order and then stretches out to the front, and the inside of inner flange is provided with oil return channel, and the both ends of oil return channel are linked with the side wall of inner flange hole and the outside wall of inner flange respectively, and the outer end of oil return channel of inner flange is connected with oil return pipe, and the one side of paper jamming compression seat front end is equipped with the blowing pipe, and the blowing mouth of blowing pipe front end carries out the gas blowing to the outside flange and paper jamming compression push rod junction part. The utility model has the following advantages compared with prior art: through the addition of oil return channel, blowing pipe and the baffle with hole, effectively prevent the occurrence of paper jamming compression push rod oil leakage.

Description

Technical Field

[0001] This utility model relates to cigarette packaging equipment, and more particularly to an oil leakage prevention device for the left side paper clamping push rod of a small box packaging machine. Background Technology

[0002] The YB45 small box packaging machine is used to package small cigarette packs. It uses a paper pusher to push the paper out of the mold box on the fourth wheel, and then into the fifth wheel where it is folded together with the label paper. The paper pusher is installed at the front end of the paper clamping push rod. The rear section of the paper clamping push rod is slidably installed in the paper clamping seat. A rack section is located at the rear end of the paper clamping push rod. The paper clamping seat has a clearance groove for the rack section to be exposed. The rack section of the paper clamping push rod is exposed from the clearance groove and meshes with external sector teeth. Through a transmission mechanism, the sector teeth swing back and forth. Under the meshing action of the sector teeth and the rack section, the paper clamping push rod moves back and forth, thereby causing the paper pusher at the front end of the paper clamping push rod to move linearly.

[0003] The paper clamping seat is installed inside the transmission box. The front end of the paper clamping seat is fixedly installed with an inner flange and an outer flange from back to front. An oil seal is provided in the inner hole of the inner flange. The front section of the paper clamping push rod passes through the inner flange and the outer flange in sequence and extends out of the transmission box. The oil seal is used to seal the gap between the paper clamping push rod and the center hole of the inner flange to prevent the lubricating oil in the internal channel of the paper clamping seat from leaking out of the box.

[0004] During actual use, it was found that there was lubricating oil leakage between the inner hole of the oil seal and the paper clamping push rod. After analysis, the main reason for the oil leakage was: On the one hand, the paper clamping push rod has a large reciprocating stroke (120mm x 2 per reciprocating stroke) and a fast reciprocating speed (400 times / minute). On the other hand, the paper clamping push rod operates in an environment with a lot of smoke and dust, which can easily wear down the oil seal, resulting in an excessive gap between the inner hole of the oil seal and the paper clamping push rod, and thus causing oil leakage from the paper clamping push rod.

[0005] On the other hand, the original method of supplying lubricating oil to the internal channels of the paper clamping seat mainly involves the oil entering from the clearance groove of the paper clamping seat. The transmission components inside the transmission box then propel the lubricating oil up in a jet-like motion towards the rear of the clearance groove, thus entering the internal channels of the paper clamping seat. The lubricating oil returns to the transmission box mainly through the return oil hole at the bottom of the paper clamping seat. Because the oil supply is a jet-like motion, a large amount of lubricating oil enters the internal channels of the paper clamping seat, and the return oil cannot be discharged in time, making it easy for lubricating oil to leak from the gap between the inner hole of the oil seal and the paper clamping push rod.

[0006] In the case of oil leakage, frequent repairs not only increase the workload, but in severe cases, the oil seal may need to be replaced every two days. At the same time, oil leakage will also affect the environment and the cleanliness of the site. Utility Model Content

[0007] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an oil leakage prevention device for the left side paper clamping push rod of a small box packaging machine, so as to effectively prevent oil leakage from the paper clamping push rod.

[0008] This utility model is achieved through the following technical solution: The paper clamping push rod on the left side of the small box packaging machine has an oil leakage prevention device. The rear section of the paper clamping push rod is slidably installed in the internal channel of the paper clamping seat. The rack section of the rear section of the paper clamping push rod is exposed from the clearance groove opened on the paper clamping seat. The front end of the paper clamping seat is fixedly installed with an inner flange and an outer flange in sequence from back to front. An oil seal is provided in the inner hole of the inner flange. The front end of the paper clamping push rod passes through the inner flange, the oil seal and the inner hole of the outer flange in sequence and then extends forward. An oil return channel is opened inside the inner flange. The two ends of the oil return channel are connected to the inner hole side wall and the outer wall of the inner flange, respectively. The outer end of the oil return channel of the inner flange is connected to the oil return pipe. A blower pipe is provided on one side of the front end of the paper clamping seat. The blower nozzle at the front end of the blower pipe blows gas towards the junction of the outer flange and the paper clamping push rod.

[0009] As a preferred embodiment of the oil leakage prevention device for the left side cardboard clamping push rod of the aforementioned small box packaging machine, the top of the rear end cover of the rear end of the cardboard clamping seat is provided with a perforated baffle. The perforated baffle extends forward and covers the rear section of the clearance groove of the cardboard clamping seat. Multiple oil dripping holes are opened on the perforated baffle, and lubricating oil drips into the clearance groove of the cardboard clamping seat through the oil dripping holes on the perforated baffle.

[0010] As a preferred embodiment of the oil leakage prevention device for the paper clamping push rod on the left side of the aforementioned small box packaging machine, an oil pipe joint is provided at the outer end of the oil return channel of the inner flange, and an oil return pipe is connected to the outside through the oil pipe joint.

[0011] As a preferred embodiment of the oil leakage prevention device for the paper clamping push rod on the left side of the aforementioned small box packaging machine, a mounting plate is provided on one side of the front end of the paper clamping seat, and an air blowing pipe is installed on the mounting plate.

[0012] As a preferred embodiment of the oil leakage prevention device for the paper clamping push rod on the left side of the aforementioned small box packaging machine, the blower nozzle is in a constricted shape.

[0013] This invention has the following advantages over the prior art: This utility model provides an oil leakage prevention device for the left-side paper clamping push rod of a small box packaging machine. By opening an oil return channel inside the inner flange, the oil return path is increased, ensuring smooth oil return. Simultaneously, by installing a blower pipe on the paper clamping side, the junction of the outer flange and the paper clamping push rod is cleaned in real time, preventing particulate matter from wearing down the oil seal with the reciprocating motion of the paper clamping push rod, thus extending the service life of the oil seal. Furthermore, a perforated baffle is provided on the top of the rear end cover of the paper clamping seat. The drip holes on the perforated baffle enable drip-type oil supply to the internal channels of the paper clamping seat, effectively reducing the oil supply volume and preventing lubricating oil from accumulating in the internal channels and causing leakage. These improvements significantly reduce oil leakage, lessen maintenance workload, and ensure the normal operation of the paper clamping push rod. Attached Figure Description

[0014] Figure 1 This is a three-dimensional assembly drawing of this utility model.

[0015] Figure 2 This is a three-dimensional exploded view of this utility model.

[0016] Figure 3 This is a perspective view of the inner flange of this utility model.

[0017] The following numbers are labeled in the diagram: 1. Paper clamping push rod; 2. Paper clamping seat; 3. Rack section; 4. Clearance groove; 5. Inner flange; 6. Outer flange; 7. Oil seal; 8. Oil return channel; 9. Oil return pipe; 10. Oil pipe joint; 11. Mounting plate; 12. Air blower; 13. Air blower nozzle; 14. Rear end cover; 15. Perforated baffle; 16. Oil drip hole; 17. Sealing ring; 18. Sector tooth. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. These embodiments are implemented based on the technical solution of this utility model and provide detailed implementation methods and specific operation processes. However, the protection scope of this utility model is not limited to the following embodiments.

[0019] See Figures 1 to 3This embodiment discloses an oil leakage prevention device for the left side paper clamping push rod of a small box packaging machine. The rear section of the paper clamping push rod 1 is slidably installed in the internal channel of the paper clamping seat 2. The rack section 3 of the rear section of the paper clamping push rod 1 is exposed from the clearance groove 4 opened on the paper clamping seat 2. The front end of the paper clamping seat 2 is fixedly installed with an inner flange 5 and an outer flange 6 from back to front. A sealing ring 17 is provided between the two flanges and between the inner flange 5 and the paper clamping seat 2. An oil seal 7 is provided in the inner hole of the inner flange 5. The front end of the paper clamping push rod 1 passes through the inner flange 5, the oil seal 7 and the inner hole of the outer flange 6 in sequence and then extends forward. The inner flange 5 has an oil return channel 8 inside. The two ends of the oil return channel 8 are connected to the inner bore side wall and the outer side wall of the inner flange 5, respectively. The outer end of the oil return channel 8 of the inner flange 5 is connected to the oil return pipe 9. Specifically, the outer end of the oil return channel 8 of the inner flange 5 is provided with an oil pipe joint 10. The oil pipe joint 10 is threaded to the outer end of the oil return channel 8, and the oil return pipe 9 is connected to the outside through the oil pipe joint 10.

[0020] A mounting plate 11 is connected to one side of the front end of the paper clamping seat 2 via screws. A blower pipe 12 is mounted on the mounting plate 11. The blower nozzle 13 at the front end of the blower pipe 12 blows gas toward the junction of the outer flange 6 and the paper clamping push rod 1. The blower nozzle 13 is constricted. The rear end of the blower pipe 12 is connected to an air pipe via a pipe connector. The end of the air pipe is connected to a compressed air source. By connecting the compressed air source, real-time blowing is achieved at the junction of the outer flange 6 and the paper clamping push rod 1.

[0021] The rear end cover 14 of the paper clamping seat 2 is provided with a perforated baffle 15. The perforated baffle 15 can be fixedly installed on the top of the rear end cover 14 by screw connection. The perforated baffle 15 extends forward and covers the rear section of the clearance groove 4 of the paper clamping seat 2. The perforated baffle 15 has multiple oil drip holes 16. Lubricating oil drips into the clearance groove 4 of the paper clamping seat 2 through the oil drip holes 16 on the perforated baffle 15.

[0022] During operation, the transmission mechanism inside the transmission box drives the sector tooth 18 to swing back and forth. Under the meshing action of the sector tooth 18 and the rack segment 3, the paper clamping push rod 1 moves back and forth, thereby driving the paper clamping push plate at the front end of the paper clamping push rod 1 to move linearly, and thus push the paper.

[0023] As the transmission components inside the transmission housing rotate, the lubricating oil inside the transmission housing is flung up and sprayed onto the perforated baffle 15. From there, it drips through the oil drip holes 16 on the perforated baffle 15 into the relief groove 4 of the paper clamping seat 2, serving as the primary method of supplying lubricating oil to the internal channels of the paper clamping seat 2. This drip-feed method effectively reduces the amount of lubricating oil supplied to the internal channels of the paper clamping seat 2, preventing leakage due to excessive oil.

[0024] Meanwhile, the oil in the internal channel of the paper clamping seat 2 can return to the transmission box through the oil return hole at the bottom of the paper clamping seat 2, or it can be discharged from the box through the oil return channel 8 of the inner flange 5, and then returned to the transmission box through the external oil return pipe 9, which ensures the timeliness of oil return and avoids leakage caused by excessive accumulation of lubricating oil.

[0025] In addition, by connecting the air source through the blower nozzle 13, real-time blowing can be performed on the junction of the outer flange 6 and the cardboard pressing push rod 1. This allows for timely cleaning of tobacco dust and other particles at the junction, ensuring a clean environment and preventing these particles from entering the interior and causing wear on the oil seal 7 as the cardboard pressing push rod 1 reciprocates. This extends the service life of the oil seal 7.

[0026] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A leak-proof oil device for the paper clamping push rod on the left side of a small box packaging machine. The rear section of the paper clamping push rod is slidably installed in the internal channel of the paper clamping seat. The rack section of the rear section of the paper clamping push rod is exposed from the clearance groove opened on the paper clamping seat. An inner flange and an outer flange are fixedly installed sequentially from back to front at the front end of the paper clamping seat. An oil seal is provided in the inner hole of the inner flange. The front end of the paper clamping push rod passes through the inner flange, the oil seal, and the inner hole of the outer flange in sequence and then extends forward. Its features are: The inner flange has an oil return channel inside, and the two ends of the oil return channel are connected to the inner hole side wall and the outer side wall of the inner flange, respectively. The outer end of the oil return channel of the inner flange is connected to the oil return pipe. A blower pipe is provided on one side of the front end of the paper clamping seat. The blower nozzle at the front end of the blower pipe blows gas towards the junction of the outer flange and the paper clamping push rod.

2. The oil leakage prevention device for the left side paper clamping push rod of the small box packaging machine as described in claim 1, characterized in that: The rear end cover of the paper clamping seat is provided with a perforated baffle. The perforated baffle extends forward and covers the rear section of the clearance groove of the paper clamping seat. Multiple oil dripping holes are opened on the perforated baffle. Lubricating oil drips into the clearance groove of the paper clamping seat through the oil dripping holes on the perforated baffle.

3. The oil leakage prevention device for the left side paper clamping push rod of the small box packaging machine as described in claim 1, characterized in that: The inner flange has an oil pipe joint at the outer end of the oil return channel, through which the oil return pipe is connected.

4. The oil leakage prevention device for the left side paper clamping push rod of the small box packaging machine as described in claim 1, characterized in that: The front end of the paper clamping seat is provided with a mounting plate, and a blower is installed on the mounting plate.

5. The oil leakage prevention device for the left side paper clamping push rod of the small box packaging machine as described in claim 1, characterized in that: The nozzle is tapered.

Images