Tobacco dropping device for improving tobacco uniformity of cigarette

Abstract

The application discloses a cut tobacco falling device for improving the uniformity of cut tobacco in a cigarette, which comprises a needle roller, a metering chute arranged above the needle roller, a front wall plate and a rear wall plate of the metering chute arranged vertically, the upper half parts of the front wall plate and the rear wall plate being arranged vertically and in parallel, and the lower half part of the front wall plate extending at a certain angle above the needle roller and towards the opposite side of the needle roller in the rotating direction, so that the lower half parts of the front wall plate and the rear wall plate form a falling area with gradually increasing width. The device has simple structure and low cost, can effectively eliminate the stacking gap between cut tobaccos in the cut tobacco falling process, increase the coverage of the cut tobacco on the upper part of the needle roller, make the needle roller take cut tobacco from the metering chute more uniformly, ensure the uniformity of the cut tobacco filling in the cigarette, and reduce the generation of empty-end cigarettes.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of cigarette production, in particular to a tobacco falling device for improving the uniformity of tobacco in a cigarette. BACKGROUND

[0002] The ZJ17 cigarette making machine is a mature cigarette making equipment, and the VE part of the tobacco falls into the metering hopper by gravity without external force, and the metering hopper has friction with the two side wall plates, which causes the stacking gap between the tobaccos in the falling process.

[0003] The defect causes the needle roller to take the tobacco unevenly, and the tobacco is not fully and evenly taken in the part with the gap, which cannot meet the instantaneous tobacco demand of the equipment, thereby causing the tobacco in the cigarette to be not fully and evenly filled, and quality problems such as empty-end cigarette. SUMMARY

[0004] In order to overcome the above problems, the present application provides a tobacco falling device for improving the uniformity of tobacco in a cigarette, which reduces the friction between the tobacco and the two side wall plates of the metering hopper in the tobacco falling process, reduces the stacking gap between the tobaccos caused by the friction, makes the needle roller take the tobacco more evenly from the metering hopper, ensures the uniformity of the tobacco in the cigarette, and reduces the generation of empty-end cigarette.

[0005] The technical scheme adopted by the present application to solve the technical problems is as follows:

[0006] The tobacco falling device for improving the uniformity of tobacco in a cigarette comprises

[0007] The needle roller is uniformly provided with tobacco taking needles on the surface.

[0008] The metering hopper is arranged above the needle roller, and the metering hopper comprises a vertically arranged hopper front wall plate and a hopper rear wall plate, the upper half parts of the hopper front wall plate and the hopper rear wall plate are vertically and parallelly arranged, the lower half part of the hopper front wall plate extends above the needle roller and towards the side opposite to the rotation direction of the needle roller at a certain angle, so that the lower half parts of the hopper front wall plate and the hopper rear wall plate form a falling area with gradually increasing width.

[0009] A gap is left between the needle roller and the bottom ends of the hopper front wall plate and the hopper rear wall plate.

[0010] The needle roller and the metering hopper are fixed on the racks arranged on the two sides thereof.

[0011] As an improvement of the above technical scheme, the lengths of the tobacco taking needles are consistent, and the gaps around each tobacco taking needle are equal.

[0012] As the improvement of the above technical scheme, the outer wall of the metering hopper is embedded with multiple pairs of photoelectric switches at different height positions, each pair of photoelectric switch is composed of an emitter, a receiver, an indicator light and a reflector; when the light beam emitted by the emitter is blocked by the tobacco, the receiver cannot receive the light beam; on the contrary, when the light beam emitted by the emitter is not blocked by the tobacco, it is reflected by the reflector, and the receiver can receive the light beam; according to whether the receiver receives the light beam, the distribution of the tobacco in the metering hopper is judged.

[0013] The yarn feeding speed of the yarn feeding belt is controlled by the control system, so that uniform and quantitative feeding is ensured.

[0014] As the improvement of the above technical scheme, the inner wall of the wall plate of the metering hopper is smooth.

[0015] As the improvement of the above technical scheme, the lower half of the front wall plate of the hopper extends to the opposite side of the rotation direction of the needle roller in the range of 30°-45° above the needle roller.

[0016] As the improvement of the above technical scheme, the distance between the front wall plate of the hopper and the rear wall plate of the hopper is in the range of 5-7cm.

[0017] The specific functions and working processes are as follows:

[0018] The metering hopper of the device presents an inverted "Y" structure. During the process of tobacco falling from top to bottom by gravity, when a certain distance above the needle roller, the falling opening is gradually enlarged with the forward extension of the front wall plate of the hopper, and the width of the falling area between the hoppers gradually increases, thereby increasing the coverage range of the tobacco on the upper part of the needle roller.

[0019] Based on the above structure, the pressure and friction between the tobacco and the wall plate of the metering hopper are significantly reduced, and the friction gradually reduces to 0 (no contact between the two) before the tobacco enters the needle roller, so that the original stacking gap between the tobaccos is eliminated, thereby enabling the tobaccos to fall more uniformly on the needle roller. The needle roller rotates clockwise to take the tobacco in the metering hopper on the needle roller through the yarn taking needle on the needle roller to quantitatively take the tobacco out of the metering hopper.

[0020] The beneficial effects brought by the present application are as follows:

[0021] The device has simple structure and low cost, can effectively eliminate the stacking gap between the tobaccos during the falling process of the tobaccos, and at the same time, increase the coverage range of the tobaccos on the upper part of the needle roller, so that the needle roller takes the tobacco more uniformly from the metering hopper, ensures the uniformity of the tobacco filling in the cigarette, and reduces the production of empty-end cigarettes. BRIEF DESCRIPTION OF DRAWINGS

[0022] The present application will be further described below in combination with the drawings and specific embodiments:

[0023] Fig. 1 Structure diagram of the present application;

[0024] Fig. 2 Structure side view of the present application. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

[0026] Reference Figs. 1-2 A tobacco falling device for improving the uniformity of tobacco in a cigarette, comprising

[0027] A needle roller 1, which is uniformly provided with tobacco taking needles on the surface, and the length of the tobacco taking needles is consistent. The tobacco falling from a metering chute falls into the gap of the tobacco taking needles, and the gap around each tobacco taking needle is equal. The metered tobacco is taken out by the rotation of the needle roller 1 and transferred to the next process.

[0028] A metering chute is arranged above the needle roller 1, and the metering chute comprises a vertically arranged chute front wall plate 21 and a chute rear wall plate 22. The upper half parts of the chute front wall plate 21 and the chute rear wall plate 22 are vertically and parallelly arranged. The lower half part of the chute front wall plate 21 extends at a certain angle above the needle roller 1 towards the side opposite to the rotation direction of the needle roller 1, so that the lower half parts of the chute front wall plate 21 and the chute rear wall plate 22 form a falling area with gradually increasing width.

[0029] A gap is left between the needle roller 1 and the bottom ends of the chute front wall plate 21 and the chute rear wall plate 22. The needle roller 1 and the metering chute are fixed on the rack 3 arranged on the two sides thereof.

[0030] The rotation speed of the needle roller 1: The needle roller 1 is driven by a DC speed regulation motor at the back side of the rack 3 through a gear belt. The rotation speed of the needle roller 1 is related to the tobacco supply amount. In the case that the cigarette rolling speed and the target weight are constant, the higher the rotation speed of the needle roller 1, the greater the tobacco supply amount. The suitable rotation speed of the needle roller is different for different brands of cigarettes. Generally, the rotation speed of the needle roller 1 is 1200-1300 r\min.

[0031] Preferably, the inner walls of the wall plates of the metering chute are smoothly arranged.

[0032] Preferably, the angle range in which the lower half part of the chute front wall plate 21 extends above the needle roller 1 towards the side opposite to the rotation direction of the needle roller is 30°-45°.

[0033] Preferably, the distance between the front wall plate 21 and the rear wall plate 22 of the hopper is 5-7 cm.

[0034] Preferably, 9 pairs of photoelectric switches are embedded at different heights of the outer wall of the hopper, each pair of photoelectric switch is composed of an emitter, a receiver, an indicator light and a mirror. When the light beam emitted by the emitter is blocked by the tobacco, the receiver cannot receive the light beam; on the contrary, when the light beam emitted by the emitter is not blocked by the tobacco, it is reflected by the mirror, and the receiver can receive the light beam. In this way, according to whether the receiver receives the light beam, the operator can judge the distribution of tobacco in the hopper through the indicator light, and then control the tobacco supply speed of the upper component to ensure uniform and quantitative supply.

[0035] The specific functions and working processes of the embodiment are as follows:

[0036] The hopper of the device has an inverted "Y" structure. During the process of tobacco falling from top to bottom by gravity, when a certain distance above the needle roller 1, the front wall plate 21 of the hopper extends forward and gradually expands the falling port, and the width of the falling area between the hoppers gradually increases, thereby increasing the coverage of the tobacco on the upper part of the needle roller.

[0037] Based on the above structure, the pressure and friction between the tobacco and the wall plate of the hopper are significantly reduced, and the friction gradually reduces to 0 before the tobacco enters the needle roller 1 (no contact between the two), so that the original stacking gap between the tobaccos is eliminated, thereby enabling the tobaccos to fall more uniformly on the needle roller 1. The needle roller 1 rotates clockwise to quantitatively take out the tobacco in the hopper on the needle roller 1 from the hopper through the tobacco taking needle on the needle roller 1.

[0038] It should be noted that the above only describes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent replacements to some technical features, as long as they are within the spirit and principles of the present application. Any modification, equivalent replacement, improvement, etc. made within the scope of the present application should be included in the protection scope of the present application.

Claims

1. A tobacco dropping device for improving the uniformity of tobacco in a cigarette, characterized in that: Comprising A needle roller is provided with uniform distribution of wire taking needles on its surface; the wire taking needles have consistent length, and the gaps around each wire taking needle are equal; A metering trough is arranged above the needle roller, and the metering trough comprises a vertically arranged trough front wall plate and a trough rear wall plate; the upper half parts of the trough front wall plate and the trough rear wall plate are vertically and parallelly arranged; the lower half part of the trough front wall plate extends above the needle roller at an angle towards the side opposite to the rotating direction of the needle roller, so that the lower half parts of the trough front wall plate and the trough rear wall plate form a dropping area with gradually increasing width; A gap is left between the needle roller and the bottom ends of the trough front wall plate and the trough rear wall plate; The needle roller and the metering trough are fixed on the racks arranged on both sides of the needle roller; A plurality of pairs of photoelectric switches are embedded at different height positions of the outer wall of the metering trough to determine the distribution of the tobacco in the metering trough; The angle range of the lower half part of the trough front wall plate extending above the needle roller towards the side opposite to the rotating direction of the needle roller is 30°-45°.

2. The tobacco dropping device for improving the uniformity of tobacco in a cigarette according to claim 1, characterized in that: Each pair of photoelectric switches is composed of an emitter, a receiver, an indicator light and a mirror; when the light beam emitted by the emitter is blocked by the tobacco, the receiver cannot receive the light beam; on the contrary, when the light beam emitted by the emitter is not blocked by the tobacco, it is reflected by the mirror, and the receiver can receive the light beam; the distribution of the tobacco in the metering trough is determined according to whether the receiver receives the light beam.

3. The tobacco dropping device for improving the uniformity of tobacco in a cigarette according to claim 1, characterized in that: The inner wall of the wall plate of the metering trough is smoothly arranged.

4. The tobacco dropping device for improving the uniformity of tobacco in a cigarette according to claim 1, characterized in that: The distance between the trough front wall plate and the trough rear wall plate is 5-7 cm.

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