CN110432541A - A kind of cigarette maker shred suction belt height control method and control device - Google Patents

Abstract

The invention discloses a method for controlling the height of the suction ribbon of a cigarette machine. A height control device is used to drive the height change of the end of the suction ribbon. The invention also discloses a device for controlling the height of the ribbon of a cigarette maker, which includes a servo motor, a servo controller, an adjustment track for driving the ribbon to move downward, a rotating shaft, and a cam for driving the adjustment track to swing up and down; the adjustment track is located at Above the end of the suction ribbon, the adjustment track is rotationally connected to the frame through the rotating shaft; the power output shaft of the servo motor is fixedly connected to the adjustment cam; the servo motor is connected to the cigarette machine control system through the servo controller. The invention can compact the sparse section of the suction ribbon.

Description

A method and device for controlling the height of a cigarette machine suction ribbon

technical field

The invention relates to the technical field of tobacco machinery and equipment, in particular to a method and a control device for controlling the height of a ribbon of a cigarette maker.

Background technique

The process of forming the shredded tobacco bundle of the cigarette machine is as follows: the shredded tobacco that is thrown into the shredded wire suction channel by the negative pressure airflow is firmly adsorbed under the air-permeable mesh suction ribbon, and a continuous shredded tobacco bundle is formed with the continuous operation of the suction ribbon. Two rivets with opposite rotation directions are installed on the frame at the silk path. Under the control of the cigarette maker control system, the rotation of the rivet is synchronized with the speed of the shredded tobacco. Trim off the excess shredded tobacco, flatten the raised part of the shredded tobacco, and equip a rotating brush wheel to brush off the shredded shredded tobacco, so as to improve the uniformity of the shredded tobacco, leaving only the cigarette weight on the suction belt The required amount of tobacco, the tobacco bundle continues to move into the bong to form a rod.

The chopper is provided with a groove, so that a tight end tobacco is formed when trimming excess shredded tobacco. When the shredded tobacco bundle passes through the groove of the chopper, the shredded tobacco bundle has a large amount of shredded tobacco and a high density, which is a compact section. At the groove part, the shredded tobacco of the shredded tobacco bundle has less amount and lower density, which is a sparse section; the groove of the chopper is uniformly set, and the density of the shredded tobacco bundle entering the bong varies periodically according to the requirements of cigarettes of different specifications. In the case of the same branch specification, the length of the compact section and the sparse section are fixed, and the speed of the compact section and the sparse section is also constant. The end of the suction ribbon and the introduction end of the coil paper overlap in the horizontal direction, and there is a space for the tobacco bundle to pass through in the vertical direction. The height of the space is fixed after the equipment is adjusted. Due to the tobacco bundle density cycle Tobacco bundles with different densities have the same height, and the frictional force received by the tobacco bundles in the space is inconsistent, which may cause the relative movement of the shredded tobacco here, changing the distribution law of the original design of the shredded tobacco density. If the shredded tobacco After the movement, the vacant position is cut off to form the burning end of the cigarette, and the cigarette will form an empty cigarette with unqualified quality.

The purpose of the present invention is to provide a method and a control device for controlling the height of the suction ribbon of a cigarette machine, which can compact the sparse section of the suction ribbon.

The technical solution adopted in the present invention is: a method for controlling the height of the suction ribbon of a cigarette machine. A height control device is used to drive the height change of the end of the suction ribbon.

Specifically, in the method for controlling the height of the suction ribbon of a cigarette maker, when the tight section of the tobacco bundle passes through the end of the suction ribbon, the height control device drives the suction ribbon to be at the first height; when the sparse section of the tobacco bundle passes through the end of the suction ribbon, At this time, the height control device drives the suction ribbon to move down to a second height, and the suction ribbon compacts the sparse section of the tobacco bundle; the second height is smaller than the first height.

A device for controlling the height of the ribbon of a cigarette maker, comprising a servo motor, a servo controller, an adjustment track for driving the ribbon to move downward, a rotating shaft, and a cam for driving the adjustment track to swing up and down; Above the end, the adjustment track is rotationally connected to the frame through a rotating shaft; the power output shaft of the servo motor is fixedly connected to the adjustment cam; the servo motor is connected to the cigarette maker control system through a servo controller.

The adjustment cam includes a first part and a second part; the first part is semi-elliptical, the second part is semi-circular, and the major axis of the ellipse is equal to the diameter of the circle; the The first and second parts are integrated.

Also included is a resetting mechanism for resetting the cam.

The reset mechanism adopts a torsion spring.

The wire feeding end of the adjustment track is provided with a guide slope.

In the present invention, by setting the adjusting guide rail which moves synchronously with the shredded tobacco bundle, the height of the suction ribbon is lowered by driving the suction ribbon to move downward in the sparse section of the shredded tobacco bundle. The possibility of relative displacement occurs, reducing the appearance of cigarette shorts.

The invention sets a servo motor and an adjustment cam, and uses the adjustment cam to drive the adjustment guide rail to raise, so that the height change of the end of the suction ribbon is synchronized with the change of the sparse section and the tight section of the shredded tobacco bundle, thereby compacting the sparse section of the shredded tobacco bundle, reducing the The possibility of relative displacement of the small tobacco bundle at the end of the suction ribbon reduces the occurrence of empty cigarettes.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a schematic diagram of the pressing state of the suction ribbon of the present invention;

Fig. 3 is the structure schematic diagram of adjusting cam of the present invention;

Fig. 4 is a schematic circuit diagram of the present invention;

1. Suction ribbon; 2. Tobacco bundle; 2-1. Sparse section; 2-2. Tight section; 3. Adjust guide rail; 4. Adjust cam; 4-1. First part; 4-2. Second part; 5. Revolving shaft.

Detailed ways

In the method for controlling the height of the ribbon 1 of a cigarette machine according to the present invention, a height control device is used to drive the height change of the end of the ribbon 1, and the height change of the end of the ribbon 1 is related to that of the sparse section 2-1 and the tight section 2-2 of the shredded tobacco bundle 2. The changes are synchronous; when the tight section 2-2 of the tobacco bundle 2 passes through the end of the suction ribbon 1, the height control device drives the suction ribbon 1 to be at the first height; when the sparse section 2-1 of the tobacco bundle 2 passes through the end of the suction ribbon 1 At this time, the height control device drives the suction ribbon 1 to move down to the second height, and the suction ribbon 1 compacts the sparse section 2-1 of the tobacco bundle 2; the second height is smaller than the first height.

As shown in Figures 1, 2, 3 and 4, the height control device of the cigarette machine suction ribbon 1 according to the present invention includes a servo motor, a servo controller, an adjustment track for driving the suction ribbon 1 to move downward, a rotating shaft 5 and The cam used to drive the adjustment track to swing up and down; the adjustment track is located above the end of the suction ribbon 1, and the adjustment track is connected to the frame through the rotating shaft 5; the power output shaft of the servo motor is fixedly connected to the adjustment cam 4 ; The servo motor is electrically connected to the cigarette machine control system through the servo controller. The control system of the cigarette making machine controls the action of the servo motor through the servo controller, and the servo motor drives the adjustment cam 4 to rotate.

The suction ribbon 1 of the cigarette making machine is elastic nylon. With the rotation of the adjustment cam 4, the suction ribbon 1 is pressed down to produce downward deformation and has a tendency to move upward; when the adjustment cam 4 rotates, the suction ribbon 1 does not When forced to press down, the suction ribbon 1 resets to drive the adjustment track to reset.

By designing the specifications of the adjustment cam 4, the adjustment track moves synchronously with the shredded tobacco bundle 2. The adjustment cam 4 includes a first part and a second part 4-2; the first part is semi-elliptical, and the second part The second part 4-2 is a semicircle, and the major axis of the ellipse is equal to the diameter of the circle; the first part and the second part 4-2 are integrated. The length of the second arc 4-2 is equal to the length of the sparse segment 2-1, and the length of the first arc is equal to the length of the dense segment 2-2.

The adjustment cam 4 is used to drive the adjustment guide rail 3, which is convenient for adjusting the specifications of the cam 4 through design, so that the height change of the end of the suction ribbon 1 is synchronized with the sparse section 2-1 and the tight section 2-2 of the shredded tobacco bundle 2.

In order to facilitate the entry of the shredded tobacco bundle 2 into the underside of the suction ribbon 1 depressed by the adjustment track, a material guide slope is provided at the end of the adjustment track.

The working process of the device is as follows: the device is arranged downstream of the riving knife; in this embodiment, the shredded tobacco bundle 2 runs from right to left, therefore, the adjustment cam 4 is arranged on the left side of the riving knife.

After setting the arc of the second part 4-2 of the adjustment cam 4 and the suction ribbon 1, press the end of the suction ribbon 1 as the starting end, adjust the other end of the arc of the second part 4-2 of the cam 4 and the suction ribbon 1 After detaching, the suction ribbon 1 starts to reset and rise, and the other end of the arc of the second part 4-2 of the adjustment cam 4 is the terminal; after the arc of the first part of the adjustment cam 4 contacts the suction ribbon 1, the end of the suction ribbon 1 that will rise is At the beginning, adjust the other end of the arc of the first part of the cam 4 to detach from the suction ribbon 1 and press down the suction ribbon 1, and adjust the other end of the arc of the first part of the cam 4 to be the terminal.

Because the advance speed of the shredded tobacco bundle 2 is constant, the lengths of the sparse section 2-1 and the tight section 2-2 in the shredded tobacco bundle 2 are also constant under the condition of certain specifications of the cigarettes. Therefore, the sparse section 2-1 and the tight section 2-1 The time for section 2-2 to pass through the end of the suction ribbon 1 is constant. The time for the sparse section 2-1 to pass through the end of the suction ribbon 1 is t1, and the time for the end of the suction ribbon 1 to pass through the pressure plate is t2.

Set the rotation speed and starting position of the servo motor through the cigarette making machine control system, so that at the beginning of t1, adjust the start of the arc of the second part 4-2 of the cam 4 to be synchronized with the left end of the thinning section 2-1, and adjust the first part of the cam 4 The starting end of the circular arc of the second part 4-2 presses down the suction ribbon 1; at the end of t1, adjust the terminal of the circular arc of the second part 4-2 of the cam 4 to be synchronous with the right end of the thinning section 2-1; thereby ensuring that the length of time at t1 Inside, the suction ribbon 1 compacts the sparse section 2-1.

At the beginning of t2, the arc-shaped beginning of the first part of the adjustment cam 4 is synchronized with the left end of the tight section 2-2, and the suction ribbon 1 starts to reset and rise; at the end of t2, adjust the arc-shaped end of the first part of the cam 4 and the tight section The right end of 2-2 is synchronized so that the tight segment 2-2 passes normally within t2. At the end of t2, that is, at the beginning of t1, the adjustment cam 4 rotates again until the beginning of the arc of the second part 4-2 is synchronized with the left end of the thinning section 2-1, thereby ensuring that the height change of the end of the suction ribbon 1 is consistent with the height of the shredded tobacco bundle 2. The changes of the sparse segment 2-1 and the tight segment 2-2 are synchronized.

When the shortest radius of the first part of the adjustment cam 4 is perpendicular to the suction ribbon 1, the free end of the adjustment track rises upwards and disengages from the suction ribbon 1, thereby ensuring that when the first part of the adjustment cam 4 turns downward, the suction ribbon 1 It can be reset in a faster time, reducing the impact on the tight section 2-2 of the tobacco bundle 2.

After the debugging of the device is completed, the guide rail 3 is adjusted to move synchronously with the shredded tobacco bundle 2. When the dense section 2-2 with high shredded tobacco density passes through, the suction ribbon 1 rises, and when the sparse section 2-1 with high shredded tobacco density passes through, the suction ribbon 1 descends. Therefore, the pressure of the suction ribbon 1 on the shredded tobacco bundle 2 is controlled, the possibility of the shredded tobacco in the shredded tobacco bundle 2 moving relative to each other is reduced, and unqualified cigarettes with unqualified burning ends are reduced.

In this embodiment, the said reset mechanism further includes a reset mechanism for resetting the cam. Preferably, the reset mechanism adopts a torsion spring. By resetting the torsion spring, the force between the suction ribbon 1 and the adjustment track can be reduced to protect the suction ribbon 1 .

Claims (7)

1. A method for controlling the height of a cigarette machine suction ribbon, characterized in that: The height change of the end of the suction ribbon is driven by a height control device, and the height change of the end of the suction ribbon is synchronized with the change of the sparse section and the tight section of the tobacco bundle. 2. The method for controlling the height of the ribbon of a cigarette maker according to claim 1, characterized in that: When the tight section of the tobacco bundle passes through the end of the suction ribbon, the height control device drives the suction ribbon to be at the first height; when the sparse section of the tobacco bundle passes through the end of the suction ribbon, the height control device drives the suction ribbon to move downward Up to the second height, the suction ribbon compacts the sparse section of the tobacco bundle; the second height is smaller than the first height. 3. A device for controlling the height of the ribbon of a cigarette maker, characterized in that it includes a servo motor, a servo controller, an adjustment track for driving the ribbon to move downward, a rotating shaft, and a cam for driving the adjustment track to swing up and down; The adjustment track is located above the end of the suction ribbon, and the adjustment track is connected to the frame through a rotating shaft; the power output shaft of the servo motor is fixedly connected to the adjustment cam; the servo motor is connected to the cigarette machine control system through a servo controller . 4. The device for controlling the height of the ribbon for smoking a cigarette machine according to claim 3, characterized in that: said adjusting cam comprises a first part and a second part; said first part is semi-elliptical, and said second part The second part is a semicircle, and the major axis of the ellipse is equal to the diameter of the circle; the first part and the second part are integrated. 5. The device for controlling the height of the ribbon for smoking a cigarette machine according to claim 4, characterized in that it further comprises a reset mechanism for resetting the cam. 6. The device for controlling the height of the ribbon of the cigarette maker according to claim 5, characterized in that: the reset mechanism adopts a torsion spring. 7. The device for controlling the height of the ribbon for smoking a cigarette machine according to claim 3, characterized in that: the wire feeding end of the adjustment track is provided with a guide slope.