ZB48A strip oil machine inlet third wheel assembly

Abstract

The utility model discloses a ZB48A strip oil engine inlet third wheel assembly which comprises an eccentric shaft, a third wheel and two bearings, and the eccentric shaft is installed on a ZB48A strip oil engine inlet machine frame. The third wheel is arranged on the eccentric shaft, check rings are arranged on the two sides of the third wheel, and a third wheel groove for containing the conveying belt is formed between the two check rings. The two bearings are located in the third wheel, a spacer bush is arranged between the two bearings, and the outer sides of the bearings are limited through clamping springs. The third wheel assembly can achieve cigarette packet pressure adjustment by rotating the eccentric shaft, and the adjustment mode is simple and fast. And a double-bearing structure is adopted, the middle is separated by the spacer bush, the outer side is limited by the snap spring, the stability in the running process of the third wheel can be effectively guaranteed, the snap spring is arranged on the outer side of the bearing, the snap spring dismounting convenience can be effectively improved when the inner ring of the bearing is damaged, and the overhauling efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette packaging machines, and particularly relates to an inlet over-run assembly of a ZB48A strip oil machine. Background Art

[0002] The main function of the ZB48A strip oil machine is to wrap five flat smoke groups stacked up and down into a finished cigarette strip. Its main processes include cigarette packet stack supply, strip box paper supply and folding packaging, strip oil cutting, conveying and folding packaging, long side heat sealing, end heat sealing, strip oil beautification and conveying of the finished cigarette strip.

[0003] The inlet of the ZB48A strip oil machine receives the beautified small oil cigarette packets and conveys the cigarette packets by the friction force of the upper and lower conveyor belts. In the actual operation process, after changing the small oil auxiliary material manufacturer, the change of the surface friction coefficient often causes the situation that the stacked small oil cigarette packets fall over.

[0004] The structure at the inlet of the ZB48A strip oil machine is as Figure 5 shown. At present, the pressure of the belt pulley 8 at the inlet of the ZB48A strip oil machine cannot be adjusted, and the overall adjustment of the cigarette packet conveyor belt is difficult. Moreover, after adjustment, it will affect the next process, resulting in cigarette jamming in the next process and difficult maintenance. And in the actual operation process, the over-run bearing is easily damaged. The internal positioning circlip blocks the damaged bearing, and the inner ring of the damaged bearing blocks the circlip (the circlip is between the two bearings), resulting in great difficulty in removing and replacing the bearing. The removal process often requires damaging the over-run bearing installation hole. The conveyor belt pulley 8 is an aluminum gear, and the teeth are easily worn during long-term operation.

[0005] Based on this, an over-run assembly that can conveniently adjust the over-run pressure is needed. Summary of the Utility Model

[0006] In view of the above problems, the utility model provides an inlet over-run assembly of a ZB48A strip oil machine, which can realize the adjustment of the cigarette packet pressure to solve the problem of the small oil cigarette packets falling over, and the over-run assembly is convenient to disassemble and assemble, facilitating the inspection and replacement of the internal bearing.

[0007] Specifically, the utility model provides an inlet over-run assembly of a ZB48A strip oil machine, including:

[0008] An eccentric shaft, which is arranged on the inlet frame of the ZB48A strip oil machine;

[0009] An over-run, with retaining rings arranged on both sides thereof, and an over-run groove for accommodating the conveyor belt is formed between the two retaining rings. The over-run is arranged on the eccentric shaft;

[0010] Two bearings are arranged inside the over-run, a spacer sleeve is arranged between the two bearings, and a circlip is arranged outside the bearings.

[0011] Further, the eccentric shaft includes:

[0012] The installation section is arranged inside the inlet frame of the ZB48A cigarette tipping machine. The idler wheel and the bearing are installed on the installation section, and a shaft shoulder is provided thereon, and the shaft shoulder is used to position the bearing.

[0013] The adjustment section passes through the frame and is connected to the installation section. A bayonet is provided thereon, and the bayonet is used to rotate the eccentric shaft.

[0014] Further, a snap ring groove is provided inside the idler wheel, and the snap ring is arranged in the snap ring groove.

[0015] Further, pads are provided at both ends of the eccentric shaft, and the screw passes through the pad and is connected to the eccentric shaft.

[0016] Working principle:

[0017] When adjusting the pressure of the conveyor belt on the cigarette pack, slightly loosen the screw at the end where the eccentric shaft 3 is connected to the frame 1, and then rotate the eccentric shaft 3 by clamping the bayonet 34 on the adjustment section 33 of the eccentric shaft. At this time, the installation section 31 will be driven to rotate around the adjustment section 33, causing a small change in the distance between the idler wheel 2 and the cigarette pack. When the installation section 31 rotates downward, the pressure on the cigarette pack increases, and vice versa, the pressure on the cigarette pack decreases.

[0018] Compared with the prior art, the beneficial effects of the present utility model are:

[0019] (1) For the idler wheel assembly at the inlet of the ZB48A cigarette tipping machine provided by the present utility model, the pressure of the cigarette pack can be adjusted by rotating the eccentric shaft, and the adjustment method is simple and fast.

[0020] (2) The idler wheel assembly adopts double bearings, separated by a spacer in the middle, and restricted by a snap ring on the outside, which can effectively ensure the stability of the idler wheel during operation. Moreover, the snap ring is placed outside the bearing, which can effectively improve the convenience of snap ring disassembly when the inner ring of the bearing is damaged and improve the maintenance efficiency. Description of the drawings

[0021] Figure 1 It is a cross-sectional view of the idler wheel assembly at the inlet of the ZB48A cigarette tipping machine in Embodiment 1;

[0022] Figure 2 It is a schematic diagram of the use state of the idler wheel assembly at the inlet of the ZB48A cigarette tipping machine in Embodiment 1;

[0023] Figure 3 It is an exploded view of the idler wheel assembly at the inlet of the ZB48A cigarette tipping machine in Embodiment 1;

[0024] Figure 4 It is a structural schematic diagram of the eccentric shaft in Embodiment 1;

[0025] Figure 5It is a schematic structural diagram of the entrance of the existing ZB48A cigarette tipping machine.

[0026] Reference numerals:

[0027] 1 - Frame; 2 - Idler pulley; 21 - Retaining ring; 3 - Eccentric shaft; 31 - Installation section; 32 - Shoulder; 33 - Adjustment section; 34 - Bayonet; 4 - Bearing; 5 - Sleeve; 6 - Snap ring; 7 - Backing plate; 8 - Pulley. Detailed implementation manners

[0028] The present utility model will be further described in detail below in conjunction with the drawings through specific implementation manners.

[0029] Embodiment 1

[0030] As Figures 1-4 shown, this embodiment provides an idler pulley assembly at the entrance of a ZB48A cigarette tipping machine, including: an eccentric shaft 3, an idler pulley 2, and a bearing 4. Retaining rings 21 are provided on both sides of the idler pulley, and an idler pulley groove for accommodating the conveyor belt is formed between the two retaining rings 21. The eccentric shaft 3 is installed at the entrance of the frame 1 of the ZB48A cigarette tipping machine, and it includes: an installation section 31 and an adjustment section 33. The bearing 4 and the idler pulley 2 are installed on the installation section 31. A shoulder 32 is provided at the position of the installation section 31 close to the adjustment section 33, and the shoulder 32 is used to position the bearing 4. A screw hole is opened at the end of the adjustment section 33. After the screw passes through the backing plate 7, it is connected to the end of the adjustment section 33. A raised block is provided on the adjustment section 33. The raised block is located inside the frame 1, and the backing plate 7 is located outside the frame, so that the adjustment section 33 is fixed on the frame 1 after the screw is tightened. A bayonet 34 is provided on the raised block to facilitate clamping the raised block to rotate the eccentric shaft 3.

[0031] There are two bearings 4, which are respectively located at the inner section (at the shoulder 32) and the outer section of the installation section 31. A sleeve 5 is provided between the two bearings 4. A snap ring 6 is provided outside the bearing 4, and the snap ring 6 is installed in the snap ring groove inside the idler pulley 2. A threaded hole is provided at the end of the installation section 31. After the screw passes through the backing plate 7, it is connected to the threaded hole of the installation section 31, so that an axial fixing structure of shoulder 32 - snap ring 6 - bearing 4 - sleeve 5 - bearing 4 - snap ring 6 - backing plate 7 is formed from the inside to the outside of the installation section 31, which can effectively limit the axial movement of the bearing 4 and the idler pulley 2, thereby ensuring the stability of the rotation of the idler pulley 2, that is, improving the stability when the cigarette packet enters the ZB48A cigarette tipping machine. And, the snap ring 6 is located outside the bearing 4. Even if the inner ring of the bearing is damaged, it will not affect the disassembly of the snap ring 6, effectively avoiding the problem that when the snap ring 6 is located inside the bearing, the damage and jamming of the inner ring of the bearing block the snap ring 6, resulting in greater difficulty in removing and replacing the snap ring.

[0032] The idler wheel assembly uses tools such as wrenches to hold the bayonet 34 to rotate the eccentric shaft 3, and the position of the idler wheel 2 can be adjusted, so as to adjust the tension of the conveyor belt and the pressure on the cigarette packets, so as to solve the problem that after replacing small oil-based auxiliary materials, the change of the surface friction coefficient causes the small oil cigarette packets to be inverted when entering the inlet of the oil machine.

[0033] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention pertains, according to the idea of the present invention, several simple deductions, deformations or substitutions can also be made.

Claims

1. A ZB48A cigarette rod oiling machine inlet idler wheel assembly, characterized in that, Comprising: An eccentric shaft (3), which is arranged on the inlet frame (1) of the ZB48A cigarette making machine; A pulley (2), with retaining rings (21) provided on both sides thereof, and a pulley groove for accommodating a conveyor belt is formed between the two retaining rings (21), and the pulley (2) is arranged on the eccentric shaft (3); Two bearings (4) are arranged inside the pulley (2), a spacer sleeve (5) is arranged between the two bearings (4), and a circlip (6) is arranged outside the bearings (4).

2. The ZB48A diesel engine inlet idler wheel assembly according to claim 1, characterized in that, The eccentric shaft (3) comprises: An installation section (31), which is located inside the inlet frame (1) of the ZB48A cigarette making machine, the pulley (2) and the bearings (4) are installed on the installation section (31), and a shaft shoulder (32) is provided thereon, and the shaft shoulder (32) is used for positioning the position of the bearings (4); An adjustment section (33), which is connected to the installation section (31) after passing through the frame (1), and a bayonet (34) is provided thereon, and the bayonet (34) is used for rotating the eccentric shaft (3).

3. The ZB48A diesel engine inlet idler wheel assembly according to claim 2, characterized in that, A circlip groove is provided inside the pulley (2), and the circlip (6) is arranged in the circlip groove.

4. The ZB48A diesel engine inlet idler wheel assembly according to claim 1, characterized in that, Padding plates (7) are provided at both ends of the eccentric shaft (3), and screws pass through the padding plates (7) and then are connected to the eccentric shaft (3).

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