A circular arc guide rail fixing device convenient for disassembly and assembly

Abstract

The utility model discloses an arc-shaped guide rail fixing device that is easy to disassemble and assemble. A drum wheel and two arc-shaped guide rails are provided on the frame of a cigarette making machine. The axial direction of the drum wheel extends in the front-to-back direction. The fixed shaft is located obliquely above the drum wheel and the axial direction of the fixed shaft is parallel to the axial direction of the drum wheel. The upper ends of the two arc-shaped guide rails are respectively installed on the fixed shaft and arranged front-to-back. The rear end of the fixed shaft is installed on the frame of the cigarette making machine through a base. The rear end of the fixed shaft and the front end of the base are plugged and matched by a T-shaped protrusion and a T-shaped groove to achieve circumferential positioning of the two. The fixed shaft is a hollow shaft with a center hole inside. The front end of the base is provided with a threaded hole. The fixing screw is passed through the center hole of the fixed shaft from front to back and is screwed into the threaded hole of the base to achieve connection between the fixed shaft and the base. Compared with the prior art, the utility model has the following advantages: accurate positioning of the arc-shaped guide rail is achieved, and the disassembly and assembly process is convenient, fast, time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of cigarette production equipment, in particular to an arc-shaped guide rail fixing device which is easy to disassemble and assemble. Background Art

[0002] The double-length cigarette is adsorbed on the cutting drum by negative pressure adsorption, and is cut into two equal single-length cigarettes by the cutter. Two front and rear arc-shaped guide rails are arranged on the outer convex surface of the cutting drum. The gap between the two arc-shaped guide rails and the cutting drum forms a passage for the cigarette to pass through. The two arc-shaped guide rails provide support and limit for cigarette cutting.

[0003] In the existing equipment, two arc-shaped guide rails are arranged front and back and installed on the same fixed shaft, and the rear end of the fixed shaft is then installed on the frame of the cigarette making machine through a base. The top of each arc-shaped guide rail is installed on the fixed shaft by screw connection, and the rear end of the fixed shaft and the front end of the base are connected together by screw connection. Due to the narrow operating space, when the arc-shaped guide rail needs to be cleaned or replaced, the fixed shaft cannot be directly removed from the base, and the arc-shaped guide rail needs to be removed from the fixed shaft; especially when the arc-shaped guide rail located at the rear side needs to be cleaned or replaced, the two arc-shaped guide rails need to be removed from the fixed shaft respectively; when reassembling, the circumferential position of the arc-shaped guide rail installed on the fixed shaft needs to be repeatedly adjusted and positioned, which is time-consuming and laborious; and the operating space is narrow, and the operation is very inconvenient. Utility Model Content

[0004] The utility model aims to overcome the deficiencies of the prior art and provides a circular arc guide rail fixing device that is easy to disassemble and assemble, so as to achieve accurate positioning of the circular arc guide rail and make the disassembly and assembly process convenient, fast, time-saving and labor-saving.

[0005] The utility model is realized by the following technical solutions:

[0006] A circular arc guide fixing device which is easy to disassemble and assemble, a drum wheel and two circular arc guide rails are provided on the frame of the cigarette making machine, the axial direction of the drum wheel extends in the front-to-back direction, the fixed shaft is located obliquely above the drum wheel and the axial direction of the fixed shaft is parallel to the axial direction of the drum wheel, the upper ends of the two circular arc guide rails are respectively mounted on the fixed shaft and arranged front to back, the rear end of the fixed shaft is mounted on the frame of the cigarette making machine through a base, the rear end of the fixed shaft and the front end of the base are plugged in and matched by a T-shaped protrusion and a T-shaped groove to achieve circumferential positioning of the two, the fixed shaft is a hollow shaft with a center hole therein, a threaded hole is opened at the front end of the base, the connection between the fixed shaft and the base is achieved by installing a screw that passes through the center hole of the fixed shaft from front to back and is tightened in the threaded hole of the base.

[0007] As a preferred solution of the above-mentioned fixing device, a first positioning plate is provided at the rear end of the fixing shaft, a T-shaped protrusion is provided on the rear end surface of the first positioning plate, a second positioning plate is provided at the front end of the base, and a T-shaped groove is provided on the front end surface of the second positioning plate.

[0008] As a preferred solution of the above-mentioned fixing device, the upper end of the arc-shaped guide rail is fixed on a retaining ring, and the retaining ring is fixedly sleeved on the fixed shaft.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The utility model provides an arc guide rail fixing device which is easy to disassemble and assemble. The T-shaped protrusion and the T-shaped groove are plugged and matched between the rear end of the fixing shaft and the front end of the base to achieve the circumferential positioning of the two. The fixing shaft is designed to be a hollow structure, and the fixing screw is passed through the center hole of the fixing shaft from front to back and is tightened in the threaded hole of the base to achieve the connection between the fixing shaft and the base. In this connection mode, the head of the mounting screw is moved to the front of the fixing shaft, which solves the problem of narrow operating space at the rear side, is convenient for convenient and quick disassembly and assembly of the fixing shaft and the base, thereby realizing the overall disassembly and assembly of the fixing shaft and the two arc guide rails. Moreover, when cleaning the arc guide rail, there is no need to disassemble the arc guide rail from the fixing shaft. It is only necessary to disassemble the fixing shaft as a whole, clean it, and then install it as a whole. When installing, it is only necessary to align the T-shaped protrusion with the T-shaped groove to achieve circumferential positioning, and there is no need for repeated adjustment, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a three-dimensional assembly diagram of the utility model as a whole.

[0012] Figure 2 It is a side view of the utility model in a disassembled state of the fixed shaft and the base.

[0013] Figure 3 It is a three-dimensional diagram of the fixed shaft of the utility model.

[0014] Figure 4 It is a rear view of the fixed shaft of the utility model.

[0015] Figure 5 It is a three-dimensional diagram of the base of the utility model.

[0016] Figure 6 yes Figure 2 DD cross-sectional view.

[0017] Numbers in the figure: 1 arc guide rail; 2 fixed shaft; 3 retaining ring; 4 base; 5 fixed plate; 6 T-shaped protrusion; 7 T-shaped groove; 8 first positioning plate; 9 second positioning plate; 10 center hole; 11 threaded hole; 12 mounting screw. DETAILED DESCRIPTION

[0018] The following is a detailed description of an embodiment of the utility model. This embodiment is implemented on the premise of the technical solution of the utility model, and a detailed implementation method and a specific operation process are given, but the protection scope of the utility model is not limited to the following embodiment.

[0019] See also Figures 1 to 6 The present embodiment discloses a circular arc guide fixing device that is easy to disassemble and assemble. A drum wheel and two circular arc guide rails 1 are provided on the frame of the cigarette making machine. The axial direction of the drum wheel extends in the front-to-back direction. The fixed shaft 2 is located obliquely above the drum wheel and the axial direction of the fixed shaft 2 is parallel to the axial direction of the drum wheel. The upper ends of the two circular arc guide rails 1 are respectively installed on the fixed shaft 2 and arranged front to back. The upper ends of the circular arc guide rails 1 are fixed to the retaining ring 3 by screw connection. The retaining ring 3 is fixedly sleeved on the fixed shaft 2. The retaining ring 3 can be fastened and sleeved on the fixed shaft 2 by a clamp connection. The rear end of the fixed shaft 2 is installed on the frame of the cigarette making machine through a base 4. A fixed plate 5 is provided at the rear end of the base 4. The fixed plate 5 is fixedly installed with the frame of the cigarette making machine by screw connection. The rear end of the fixed shaft 2 and the front end of the base 4 are plugged and matched to achieve circumferential positioning of the two by means of a T-shaped protrusion 6 and a T-shaped groove 7. The rear end of the fixed shaft 2 is provided with a first positioning plate 8, and the rear end surface of the first positioning plate 8 is provided with a T-shaped protrusion 6. The front end of the base 4 is provided with a second positioning plate 9, and the front end surface of the second positioning plate 9 is provided with a T-shaped groove 7. The fixed shaft 2 is a hollow shaft with a center hole 10 therein, and the front end of the base 4 is provided with a threaded hole 11. The fixing screw 12 passes through the center hole 10 of the fixed shaft 2 from front to back and is screwed into the threaded hole 11 of the base 4 to achieve connection between the fixed shaft 2 and the base 4.

[0020] When it is necessary to clean the arc guide rail 1, it is only necessary to loosen the mounting screw 12 from the front side of the fixed shaft 2 and unscrew the mounting screw 12 from the threaded hole 11 of the base 4 to separate the fixed shaft 2 from the base 4, thereby removing the fixed shaft 2 and the two sets of arc guide rails 1 on the fixed shaft 2 as a whole, and cleaning the arc guide rail 1. After cleaning, the fixed shaft 2 and the two sets of arc guide rails 1 on the fixed shaft 2 are installed as a whole on the base 4. During installation, it is only necessary to align the T-shaped protrusion 6 at the rear end of the fixed shaft 2 with the T-shaped groove 7 at the front end of the base 4 to ensure circumferential positioning, and then tighten the mounting screw 12 to achieve the installation of the arc guide rail 1.

[0021] When the arc guide rail 1 needs to be replaced, the fixed shaft 2 and the two sets of arc guide rails 1 on the fixed shaft 2 are first removed from the base 4 in the same manner, and then a new arc guide rail 1 is replaced on the fixed shaft 2. After the replacement is completed, the fixed shaft 2 with the two arc guide rails 1 installed is installed on the base 4. The entire disassembly and assembly process is convenient, fast, time-saving and labor-saving.

[0022] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An arc-shaped guide rail fixing device that is easy to disassemble and assemble, a drum wheel and two arc-shaped guide rails are arranged on the frame of the cigarette making machine, the axial direction of the drum wheel extends in the front-to-back direction, the fixed shaft is located obliquely above the drum wheel and the axial direction of the fixed shaft is parallel to the axial direction of the drum wheel, the upper ends of the two arc-shaped guide rails are respectively mounted on the fixed shaft and arranged front-to-back, and the rear end of the fixed shaft is mounted on the frame of the cigarette making machine through a base, characterized in that: The rear end of the fixed shaft and the front end of the base are plugged into and matched with each other by a T-shaped protrusion and a T-shaped groove to achieve circumferential positioning of the two. The fixed shaft is a hollow shaft with a center hole inside, and a threaded hole is opened at the front end of the base. The connection between the fixed shaft and the base is achieved by installing screws that pass through the center hole of the fixed shaft from front to back and are tightened in the threaded hole of the base.

2. The arc-shaped guide rail fixing device that is easy to disassemble and assemble as claimed in claim 1, characterized in that: A first positioning plate is disposed at the rear end of the fixed shaft, a T-shaped protrusion is disposed on the rear end surface of the first positioning plate, a second positioning plate is disposed at the front end of the base, and a T-shaped groove is disposed on the front end surface of the second positioning plate.

3. The arc-shaped guide rail fixing device that is easy to disassemble and assemble as claimed in claim 1, characterized in that: The upper end of the arc-shaped guide rail is fixed on a retaining ring, and the retaining ring is fixedly sleeved on the fixed shaft.

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