Cigarette making machine rubber roll shaft tensioning device

Abstract

The utility model relates to the technical field of cigarette production equipment, and discloses a cigarette making machine rubber roll shaft tensioning device which comprises a rubber roll shaft, an upper rubber roll is arranged on the rubber roll shaft, a pin is arranged between the rubber roll shaft and the upper rubber roll, one end of the rubber roll shaft is provided with a cavity, the other end of the rubber roll shaft is provided with a gas circuit, and a tensioning assembly is arranged in the cavity. The tensioning assembly comprises a mounting shaft and a tensioning block, one end of the mounting shaft is fixed to the inner wall of the cavity and communicated with the air channel, the other end of the mounting shaft is sealed, an expansion airbag is mounted on the surface of the mounting shaft, a vent hole is formed in the middle of the mounting shaft, the tensioning block is slidably mounted in the cavity, the inner side of the tensioning block abuts against the expansion airbag, and the outer side of the tensioning block penetrates out of the cavity and abuts against the inner wall of the gluing roller. The gluing roller tensioning device has the advantages that the gluing roller is tensioned, the gluing roller and the gluing roller shaft do not move mutually in the operation process, and therefore friction and abrasion caused by shaking of the gluing roller and the gluing roller transmission shaft are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production equipment, in particular to a rubber roller shaft tensioning device for a cigarette making machine. Background Art

[0002] In the tobacco industry, the ZJ118 type cigarette-making machine is used by many cigarette manufacturers. The gluing device of the cigarette-making machine is composed of upper glue roller, lower glue roller, glue cylinder, paper lifter, glue scraper, glue leveler and other parts. Its function is to complete the gluing of cigarette tipping paper and prepare for cigarette splicing. The gluing roller of the device applies glue on the tipping paper. The power is input from the transmission shaft of the gluing roller. There is a pin on the transmission shaft to drive the gluing roller to rotate. At the same time, there is a locking handle at the other end of the transmission shaft to press the gluing roller.

[0003] The glue roller needs to be removed and cleaned every day. Due to the operator's improper operation, the locking handle of the glue roller was not tightened. Although the pin can drive the glue roller to rotate, the glue roller is not pressed tightly. Therefore, the glue roller and the glue roller drive shaft rub and wear each other during the rotation process. When the glue roller is worn to a certain extent, it will affect the gluing effect of the tipping paper and cause cigarette quality problems. In order to solve the quality problem, the worn glue roller drive shaft must be replaced. However, the disassembly and assembly of the glue roller drive shaft is complicated and time-consuming, and frequent replacement is not conducive to spare parts cost control. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a cigarette making machine glue roller shaft tensioning device, which is used to solve the problem of mutual friction and wear between the glue roller and the glue roller transmission shaft caused by improper operation and failure to tighten the glue roller locking handle. When the glue roller is worn to a certain extent, it will affect the gluing effect of the tipping paper and cause problems with the quality of cigarettes.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A rubber roller shaft tensioning device for a cigarette making machine comprises a rubber roller shaft, an upper rubber roller is arranged on the rubber roller shaft, a pin is arranged between the rubber roller shaft and the upper rubber roller, a cavity is formed at one end of the rubber roller shaft, and an air path connected to the cavity is formed at the other end, a tensioning assembly is arranged in the cavity, the tensioning assembly comprises a mounting shaft and a tensioning block, one end of the mounting shaft is fixed to the inner wall of the cavity and connected to the air path, and the other end is sealed, an expansion air bag is installed on the surface of the mounting shaft, a vent is arranged in the middle of the mounting shaft, the inner side of the tensioning block abuts against the expansion air bag, and the outer side passes through the cavity and abuts against the inner wall of the upper rubber roller.

[0007] Furthermore, clamps are installed at both ends of the expansion airbag, and the expansion airbag is fixed on the installation shaft through the clamps.

[0008] Furthermore, there are multiple tension blocks, and the multiple tension blocks are evenly distributed along the circumference of the inflatable airbag.

[0009] Furthermore, a flat spring washer is provided between each of the tensioning blocks and the inner wall of the rubber roller shaft, and one side of the flat spring washer is fixedly connected to the inner wall of the rubber roller shaft, and the other side of the flat spring washer is fixedly connected to the side wall of the tensioning block.

[0010] Furthermore, a mounting hole communicating with the cavity is provided at one end of the rubber roller shaft away from the air path, a bolt is provided in the mounting hole, a handle is connected to the bolt, and the handle is located outside the mounting hole.

[0011] Furthermore, the diameter of the handle is greater than the diameter of the rubber roller shaft, and one side of the handle abuts against the upper rubber roller.

[0012] Beneficial effects of the utility model:

[0013] The utility model discloses a tensioning device for a rubber roller shaft of a cigarette making machine. An air path and a cavity are opened on the rubber roller shaft, and a tensioning assembly is arranged in the cavity. After the expansion air bag is connected with compressed air, it expands and pushes the tensioning block to move outwards and abut against the inner hole wall of the upper rubber roller, thereby tensioning the upper rubber roller and preventing the upper rubber roller and the rubber roller shaft from moving relative to each other during operation, thereby avoiding friction and wear caused by shaking of the upper rubber roller and the upper rubber roller transmission shaft. The utility model is convenient and quick, and avoids the situation that the upper rubber roller locking handle is not tightened during manual operation, thereby extending the service life of the upper rubber roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a structural schematic diagram of a rubber roller shaft tensioning device for a cigarette making machine according to the utility model;

[0015] Figure 2 yes Figure 1 Schematic diagram of the local structure;

[0016] Figure 3 yes Figure 2 Cross-section view along the AA direction.

[0017] in,

[0018] 1. Air pipe joint; 2. Rubber roller shaft; 3. Positioning sleeve; 4. Pin; 5. Rubber roller; 6. Tension block; 7. Flat spring washer; 8. Mounting shaft; 9. Clamp; 10. Inflatable airbag; 11. Cavity; 12. Anti-loosening nut; 13. Bolt; 14. Handle; 15. Cavity; 16. Air path; 17. Vent. DETAILED DESCRIPTION

[0019] The following describes the implementation of the present invention through specific embodiments. Those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in this specification. It should be noted that the illustrations provided in the following embodiments are only for exemplary descriptions, and they are only schematic diagrams, not physical diagrams, and cannot be understood as limitations on the present invention. In order to better illustrate the embodiments of the present invention, some parts in the figures may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the figures may be omitted.

[0020] The same or similar numbers in the figures of the embodiments of the present invention correspond to the same or similar parts. In the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right", "front", "back", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the figures, they are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the figures are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0021] like Figure 1-3 As shown, a rubber roller shaft tensioning device for a cigarette making machine of the utility model comprises a rubber roller shaft 2, an upper rubber roller 5 is arranged on the rubber roller shaft 2, and a pin 4 is arranged on the rubber roller shaft 2. In this embodiment, the pin 4 is installed between the rubber roller shaft 2 and the upper rubber roller 5 through a positioning sleeve 3, and is used to preliminarily fix the rubber roller shaft 2 and the upper rubber roller 5. A cavity 11 is provided at the right end of the rubber roller shaft 2, and an air path 16 is provided at the left end of the rubber roller shaft 2. The air path 16 is connected to the cavity 11. In this embodiment, the air path 16 is connected to an external gas source through a rotary joint, so that when the external gas source is working, the pressurized gas can enter the cavity 11 through the air path 16.

[0022] A tensioning assembly is arranged in the cavity 11, so that when the air circuit 16 is working, the tensioning assembly can automatically tension the glue roller 5, thereby fastening the glue roller 5 to the rubber roller shaft 2. The tensioning assembly includes a mounting shaft 8 and a tensioning block 6. The left end of the mounting shaft 8 is fixed to the inner wall of the cavity 11 and communicates with the air circuit 16. The right end of the mounting shaft 8 is self-sealing. In this embodiment, the left end of the mounting shaft 8 has an external thread and is installed and connected in the threaded hole in the rubber roller shaft 2. The interior of the mounting shaft 8 has a cavity 15 and the left end of the mounting shaft 8 is open. The open end of the mounting shaft 8 is just aligned with and communicated with the air circuit 16. An inflatable airbag 10 is installed on the surface of the mounting shaft 8. Two vents 17 are arranged in the middle of the mounting shaft 8. In this embodiment, the air circuit 16 is ventilated and enters the inflatable airbag 10 through the cavity 15 and the through hole, so that the inflatable airbag 10 is inflated. Hoops 9 are installed at both ends of the inflatable airbag 10, and the inflatable airbag 10 is fixed on the mounting shaft 8 through the hoop 9. The hoop 9 tightens the two ends of the airbag to prevent air leakage. Three tensioning holes are evenly opened on the side wall of the rubber roller shaft 2 along the circumference of the cavity 11, and each tensioning hole is connected to the cavity 11. Three tensioning blocks 6 are provided corresponding to the tensioning holes. The tensioning blocks 6 are slidably installed in the corresponding tensioning holes. The inner side of the tensioning block 6 abuts against the inflatable airbag 10, and the outer side of the tensioning block 6 passes through the tensioning hole and abuts against the inner wall of the upper rubber roller 5. In this embodiment, the inflatable airbag 10 expands after the compressed air is connected, pushing the three tensioning blocks 6 to move outward, abutting against the inner hole wall of the upper rubber roller 5, and tightening the upper rubber roller 5. During the rotation of the rubber roller shaft 2, the tensioning block 6 always tightens the upper rubber roller 5, so that the upper rubber roller 5 and the rubber roller shaft 2 do not move relative to each other during operation, thereby avoiding the friction and wear caused by the shaking of the upper rubber roller 5 and the transmission shaft of the upper rubber roller 5.

[0023] A flat spring pad 7 is provided between each tensioning block 6 and the inner wall of the tensioning hole. One side of the flat spring pad 7 is fixedly connected to the inner wall of the rubber roller shaft 2, and the other side is fixedly connected to the side wall of the tensioning block 6. In this embodiment, after shutdown, the air source of the rotating air pipe joint 1 is closed and the air is discharged, and the inflatable airbag 10 shrinks because there is no compressed air inside. The flat spring pad 7 is a flat spring, and the elastic force of the three flat spring pads 7 causes the tensioning blocks 6 to shrink.

[0024] A mounting hole connected to the right end of the cavity 11 is provided at the right end of the rubber roller shaft 2, and a locking nut 12 and a bolt 13 are tightly arranged in sequence from the inside to the outside of the mounting hole. The bolt 13 includes a nut and a screw rod. The nut surfaces of the locking nut 12 and the bolt 13 both have external threads and are threadedly installed in the mounting hole. The screw rod of the bolt 13 extends out of the mounting hole and is threadedly connected with a handle 14. The diameter of the handle 14 is larger than the diameter of the rubber roller shaft 2, and the diameter of the handle 14 is smaller than the diameter of the upper rubber roller 5. The left side of the handle 14 is against the right end of the upper rubber roller 5. In this embodiment, the installation holes are provided to facilitate the installation of the shaft 8, the expansion airbag 10, and the clamp 9 in the cavity 11; the anti-loosening nut 12 and the bolt 13 are provided with a 6mm hexagonal hole, and a 6mm hexagonal tool can be used to tighten them to each other so that the bolt 13 will not loosen, and the handle 14 is installed on the bolt 13. When installing the rubber roller 5, the rubber roller 5 is first installed on the rubber roller shaft 2, and then the handle 14 is screwed on. In this way, even if the handle 14 is not tightened, it will not cause wear of the rubber roller shaft 2. At the same time, the installation and disassembly of the handle 14 are convenient and quick, and the installation is secure.

[0025] The method of using the utility model is as follows:

[0026] When in use, pressurized gas is transported into the cavity 15 of the mounting shaft 8 through the gas path 16 by an external gas source, and the gas then enters the expansion airbag 10 through the vent hole 17. The expansion airbag 10 expands after being connected to the compressed air, pushing the three tensioning blocks 6 to move outward, against the inner hole wall of the glue roller 5, and tightening the glue roller 5, so that the glue roller 5 and the glue roller shaft 2 do not move relative to each other during operation, thereby avoiding friction and wear caused by the shaking of the glue roller 5 and the transmission shaft of the glue roller 5. It is convenient and quick, and avoids the situation where the locking handle 14 of the glue roller 5 is not tightened during manual operation, thereby extending the service life of the glue roller 5.

[0027] After shutdown, the air source of the rotating air pipe joint 1 is closed and the air is discharged, the inflatable airbag 10 shrinks because there is no compressed air inside, and the elastic force of the three flat spring pads 7 shrinks the three tensioning blocks 6; at the same time, after shutdown, if the glue roller 5 is to be removed, as in the prior art, the handle 14 should be taken out first, and then the rear glue roller 5 should be taken out, and the glue roller 5 will not be difficult to remove due to the tensioning block 6.

[0028] The above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although the utility model is described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model. The technology, shape, and structure that are not described in detail in the utility model are all well-known technologies.

Claims

1. A rubber roller shaft tensioning device for a cigarette making machine, comprising a rubber roller shaft, an upper rubber roller is arranged on the rubber roller shaft, and a pin is arranged between the rubber roller shaft and the upper rubber roller, characterized in that: A cavity is provided at one end of the rubber roller shaft, and an air path connected to the cavity is provided at the other end. A tensioning assembly is provided in the cavity, and the tensioning assembly includes a mounting shaft and a tensioning block. One end of the mounting shaft is fixed to the inner wall of the cavity and connected to the air path, and the other end is sealed. An expansion airbag is installed on the surface of the mounting shaft, and a vent is provided in the middle of the mounting shaft. The tensioning block is slidably installed in the cavity, and the inner side of the tensioning block abuts against the expansion airbag, and the outer side passes through the cavity and abuts against the inner wall of the upper rubber roller.

2. The cigarette making machine rubber roller shaft tensioning device according to claim 1, characterized in that: Both ends of the expansion airbag are equipped with clamps, and the expansion airbag is fixed on the installation shaft through the clamps.

3. The cigarette making machine rubber roller shaft tensioning device according to claim 1, characterized in that: There are multiple tension blocks, and the multiple tension blocks are evenly distributed along the circumference of the inflatable airbag.

4. The cigarette making machine rubber roller shaft tensioning device according to claim 3, characterized in that: A flat spring washer is arranged between each of the tensioning blocks and the inner wall of the rubber roller shaft. One side of the flat spring washer is fixedly connected to the inner wall of the rubber roller shaft, and the other side of the flat spring washer is fixedly connected to the side wall of the tensioning block.

5. The cigarette making machine rubber roller shaft tensioning device according to claim 1, characterized in that: A mounting hole communicating with the cavity is provided at one end of the rubber roller shaft away from the air path, a bolt is arranged in the mounting hole, a handle is connected to the bolt, and the handle is located outside the mounting hole.

6. A cigarette making machine rubber roller shaft tensioning device according to claim 5, characterized in that: The diameter of the handle is greater than the diameter of the rubber roller shaft, and one side of the handle abuts against the upper rubber roller.

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