A tobacco shaping device

Abstract

The present invention belongs to the technical field of tobacco processing equipment and relates to a tobacco shaping device, comprising an air selection chamber, wherein the air selection chamber is provided with a feed port and an air duct, a bracket is installed on the air selection chamber, two first claw wire rollers are installed at the feed port, the two first claw wire rollers are provided with first claw wire nails, a first wire guide plate and a second wire guide plate are installed in the air selection chamber, the top of the first wire guide plate is located at the connecting part of the air duct and the air selection chamber, a second claw wire roller and a third claw wire roller with the same steering direction are installed below the first wire guide plate and the second wire guide plate, the second claw wire roller and the third claw wire roller are provided with second claw wire nails, the second claw wire nails are cone-shaped, and the second claw wire nails on the second claw wire roller and the third claw wire roller are axially staggered, the first claw wire roller, the second claw wire roller and the third claw wire roller are all transmission-connected to a stepper motor, and the stepper motor is installed outside the air selection chamber, so as to solve the problem that the existing air separator has poor separation effect without changing the negative pressure wind force.

Description

Technical Field

[0001] The invention belongs to the technical field of tobacco processing equipment, and in particular relates to a tobacco shred shaping device. Background Art

[0002] In the process of making cigarettes, there is a process of air-selecting and removing impurities from the stems in the shredded tobacco. The purpose is to separate the shredded tobacco from the stems. The equipment used is the air-selector. The dried material (a mixture of shredded tobacco and stems) enters the air-selector from the feeding end through the feeding conveyor. The air-selector is connected to a negative pressure pipe. Under the action of negative pressure, the shredded tobacco is discharged from the discharging end of the air-selector to the discharging conveyor, and then transported to the next process by the discharging conveyor, while the stems are discharged from the waste outlet of the air-selector, thus achieving the separation of shredded tobacco from the stems.

[0003] The air separator uses negative pressure to separate tobacco from stems based on the difference in their suspension speeds. The effect of separating tobacco from stems is related to the size of the negative pressure in the negative pressure tube and the time it takes for the tobacco to enter the air separation chamber for air separation screening. At present, due to the constraints of equipment costs and production sites, tobacco-making enterprises generally adopt a one-level air separation method to separate shredded tobacco from stems, which makes the air separation area of ​​the air separator shorter, and a large amount of materials enter the air separation chamber for air separation screening for a short time, resulting in ineffective air separation in the air separation chamber and poor air separation effect. As a result, first, if the negative pressure of the negative pressure tube is small, the degree of separation between shredded tobacco and stems is high, and pure shredded tobacco can be obtained, but the amount of long shredded tobacco in the stems is high. Since the existing air separator does not have the function of re-processing the rejected materials, this part of the rejected long shredded tobacco can only be discarded together with the stems, increasing the consumption and waste of shredded tobacco; second, if the negative pressure of the negative pressure tube is increased, although it will not cause the consumption and waste of shredded tobacco, the degree of separation between shredded tobacco and stems is not high, and the content of stems in the shredded tobacco after air separation is high, affecting the quality of cigarettes. Summary of the invention

[0004] Based on the problems mentioned in the above background technology, the present invention provides a tobacco shaping device for solving the problem that the existing air separator has poor separation effect without changing the negative pressure wind force.

[0005] The technical solution adopted by the present invention is as follows:

[0006] A tobacco shaping device comprises a wind selection chamber, which is provided with a feed port and an air duct, and a bracket is installed on the wind selection chamber, two first claw wire rollers are installed at the feed port, and the two first claw wire rollers are each provided with a first claw wire nail, a first wire guide plate and a second wire guide plate are installed in the wind selection chamber, the top of the first wire guide plate is located at the connection between the air duct and the wind selection chamber, a second claw wire roller and a third claw wire roller with the same direction are installed below the first wire guide plate and the second wire guide plate, the second claw wire roller and the third claw wire roller are each provided with a second claw wire nail, the second claw wire nail is conical, and the second claw wire nails on the second claw wire roller and the third claw wire roller are axially staggered, and the first claw wire roller, the second claw wire roller and the third claw wire roller are all transmission-connected to a stepper motor, and the stepper motor is installed outside the wind selection chamber.

[0007] On the basis of the above scheme, the present invention also makes the following improvements:

[0008] Furthermore, the second claw wire nail is provided with a plurality of auxiliary nails, and the auxiliary nails are used to enhance the wire grasping ability of the second claw wire roller and the third claw wire roller, so as to better comb the tobacco shreds.

[0009] Furthermore, the secondary nails are all arranged obliquely toward the tip of the second claw wire nail. The obliquely arranged secondary nails can better separate the tobacco from the second claw wire nail under the action of centrifugal force after combing, thereby preventing a large amount of tobacco from being unable to separate and affecting the use of the second claw wire roller and the third claw wire roller.

[0010] Furthermore, the secondary nail is conical, which reduces the resistance of the secondary nail to the tobacco, so that the tobacco can be better separated from the second claw nail.

[0011] Furthermore, the third claw wire roller rotates from the second wire guide plate to the first wire guide plate, so that the tobacco is thrown out from the side where the first claw wire roller is located after being combed, and there is no shielding above the thrown tobacco, so that the negative pressure wind introduced by the air duct can better float the tobacco combed by the second claw wire roller and the third claw wire roller.

[0012] Furthermore, the bottom ends of the first wire guide plate and the second wire guide plate are both located above the third claw wire roller, which can better prevent the tobacco from falling directly onto the second claw wire roller after being combed by the first claw wire roller, causing it to be thrown out directly without contacting the third claw wire roller, which is beneficial to improving the combing effect and better separating the tobacco from the stems.

[0013] Furthermore, the height of the bottom end of the first wire guide plate is lower than that of the bottom end of the second wire guide plate. The first wire guide plate forms a certain blocking effect to prevent the tobacco sliding off the second wire guide plate from sliding directly to the second claw wire roller.

[0014] Beneficial effects of the present invention:

[0015] 1. The negative pressure air introduced through the air duct can float the tobacco combed by the first claw wire roller. Under the action of the first wire guide plate and the second wire guide, the long tobacco and tobacco stems that cannot be sucked away after combing by the first claw wire roller are guided. The long tobacco and tobacco stems fall on the second claw wire roller and the third claw wire roller and comb again. The tobacco is shaped and the long tobacco is broken. Under the premise of not increasing the negative pressure, the sorting effect is better and the waste of materials is reduced;

[0016] 2. The second claw wire pins on the second claw wire roller and the third claw wire roller are cone-shaped, which reduces the resistance of the second claw wire pins to the tobacco, so that the tobacco can be better separated after the second claw wire roller and the third claw wire roller comb the long tobacco, and can better prevent the tobacco from being entangled on the second claw wire roller and the third claw wire roller, affecting the use of the second claw wire roller and the third claw wire roller. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0018] Figure 1 A schematic diagram of the longitudinal structure of a tobacco shaping device according to an embodiment of the present invention;

[0019] Figure 2 It is a front view of a longitudinal section structure of a tobacco shaping device in an embodiment of the present invention;

[0020] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at A in the middle;

[0021] Figure 4 Schematic diagram of the structure of the second claw wire roller and the third claw wire roller in an embodiment of the present invention;

[0022] The main component symbols are described as follows:

[0023] The air selection chamber 1, the feed port 11, the bracket 12, the first claw wire roller 31, the first claw wire nail 32, the first wire guide plate 41, the second wire guide plate 42, the second claw wire roller 51, the third claw wire roller 52, the second claw wire nail 53, and the auxiliary nail 54. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the present invention, the technical solution of the present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0025] Example

[0026] like Figures 1 to 4As shown, a tobacco shaping device comprises an air selection chamber 1, which is provided with a feed inlet 11 and an air duct 2, a bracket 12 is installed on the air selection chamber 1, two first claw wire rollers 31 are installed at the feed inlet 11, and the two first claw wire rollers 31 are each provided with a first claw wire nail 32, a first wire guide plate 41 and a second wire guide plate 42 are installed in the air selection chamber 1, the top of the first wire guide plate 41 is located at the connection between the air duct 2 and the air selection chamber 1, and a second claw wire roller 51 and a third claw wire roller 52 with the same direction are installed below the first wire guide plate 41 and the second wire guide plate 42, and the second claw wire roller 51 and the third claw wire roller 52 are each provided with a second claw wire nail 53, and the second claw wire nail 53 is conical, and the second claw wire nail 53 on the second claw wire roller 51 and the third claw wire roller 52 is axially staggered, and the first claw wire roller 31, the second claw wire roller 51 and the third claw wire roller 52 are all transmission-connected to a stepper motor, and the stepper motor is installed outside the air selection chamber 1.

[0027] Specifically, a plurality of secondary nails 54 are provided on the second claw wire nail 53. The secondary nails 54 enhance the wire grasping ability of the second claw wire roller 51 and the third claw wire roller 52 so as to better comb the tobacco shreds.

[0028] Specifically, the secondary nails 54 are all inclined toward the tip of the second claw wire nail 53. The inclined secondary nails 54 can better separate the tobacco from the second claw wire nail 53 under the action of centrifugal force after combing, thereby preventing a large amount of tobacco from being unable to separate and affecting the use of the second claw wire roller 51 and the third claw wire roller 52.

[0029] Specifically, the secondary nail 54 is conical in shape. Reducing the resistance of the secondary nail 54 to the tobacco shreds can make the tobacco shreds more easily detached from the second claw filament nail 53 .

[0030] Specifically, the third claw wire roller 52 rotates from the second wire guide plate 42 to the first wire guide plate 41. After being combed, the tobacco is thrown out from the side where the first claw wire roller 52 is located, and there is no shielding above the thrown tobacco, so that the negative pressure wind introduced by the air duct 2 can better float the tobacco combed by the second claw wire roller 51 and the third claw wire roller 52.

[0031] Specifically, the bottom ends of the first wire guide plate 41 and the second wire guide plate 42 are both located above the third claw wire roller 52. This can better prevent the tobacco shreds from falling directly onto the second claw wire roller 51 after being combed by the first claw wire roller 31, resulting in being thrown out directly without contacting the third claw wire roller 52, which is beneficial to improving the combing effect and better separating the tobacco shreds and tobacco stems.

[0032] Specifically, the height of the bottom end of the first wire guide plate 41 is lower than the height of the bottom end of the second wire guide plate 42. The first wire guide plate 41 forms a certain blocking effect to prevent the tobacco sliding off the second wire guide plate 42 from sliding directly to the second claw wire roller 51.

[0033] When in use, negative pressure wind is introduced through the air duct 2, and the tobacco to be processed enters from the feed port 11, and is first processed by the first claw wire roller 31. Under the action of the negative pressure wind, the tobacco combed by the first claw wire roller 31 can be first floated, and the qualified tobacco is sucked away, and the tobacco stems and long tobacco naturally fall due to their heavy weight; the fallen tobacco stems and long tobacco slide on the first wire guide plate 41 and the second wire guide 42 and fall on the third claw wire roller 52, as shown in FIG. Figure 2 As shown, the second claw wire roller 51 and the third claw wire roller 52 rotate counterclockwise, and part of the tobacco stems fall from between the second claw wire roller 51 and the third claw wire roller 52. The long tobacco shreds and the tobacco stems with a large amount of tobacco shreds are hooked by the third claw wire roller 52 and rotated toward one end of the second claw wire roller 51. When the second claw wire nails 53 on the second claw wire roller 51 and the third claw wire roller 52 are staggered, a second combing is performed (as shown in FIG. Figure 4 As shown), the tobacco shreds are shaped and the long tobacco shreds are broken; the second claw wire roller 51 and the third claw wire roller 52 comb the long tobacco shreds and the tobacco stems for a second time and then throw them out by the second claw wire roller 51, the broken long tobacco shreds are sucked away and the tobacco stems fall off, which can reduce the waste of materials without increasing the negative pressure.

[0034] The above is a detailed introduction to a tobacco shaping device provided by the present invention. The description of the specific embodiment is only used to help understand the method and core idea of ​​the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A tobacco shaping device, comprising a wind selection chamber (1), the wind selection chamber (1) being provided with a feed inlet (11) and an air duct (2), a bracket (12) being installed on the wind selection chamber (1), two first claw wire rollers (31) being installed at the feed inlet (11), and first claw wire nails (32) being provided on the two first claw wire rollers (31), characterized in that: A first wire guide plate (41) and a second wire guide plate (42) are installed in the air separation chamber (1); the top of the first wire guide plate (41) is located at the connection point between the air duct (2) and the air separation chamber (1); a second wire claw roller (51) and a third wire claw roller (52) with the same direction of rotation are installed below the first wire guide plate (41) and the second wire guide plate (42); the second wire claw roller (51) and the third wire claw roller (52) are both provided with a second wire claw nail (53); the second wire claw nail (53) is conical in shape; A plurality of auxiliary nails (54) are arranged on the wire nail (53); the second claw wire nails (53) on the second claw wire roller (51) and the third claw wire roller (52) are axially staggered; the first claw wire roller (31), the second claw wire roller (51) and the third claw wire roller (52) are all transmission-connected to a stepper motor, and the stepper motor is installed outside the air separation chamber (1); the auxiliary nails (54) are all inclined toward the tip of the second claw wire nail (53); the auxiliary nails (54) are conical; the second claw wire roller and the third claw wire roller rotate counterclockwise.

2. A tobacco shaping device according to claim 1, characterized in that: The third claw wire roller (52) rotates from the second wire guide plate (42) toward the first wire guide plate (41).

3. A tobacco shaping device according to claim 2, characterized in that: The bottom ends of the first wire guide plate (41) and the second wire guide plate (42) are both located above the third claw wire roller (52).

4. A tobacco shaping device according to claim 3, characterized in that: The height of the bottom end of the first wire guide plate (41) is lower than the height of the bottom end of the second wire guide plate (42).

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