A tobacco rod splitting device

Abstract

The application discloses a tobacco bunch splitting device, which comprises a composite sieve disc, an upper needle comb array, a lower needle comb array and a vibrator. The composite sieve disc is composed of an upper sieve disc and a lower sieve disc which are installed on the same central shaft. The lower needle comb array is fixed on the upper surface of the lower sieve disc, and the needle comb tips of the lower needle comb array are respectively aligned with the sieve hole centers of the upper sieve disc. The upper needle comb array is located above the upper sieve disc and is arranged in a staggered manner opposite to the lower needle comb array. The upper sieve disc and the lower sieve disc rotate coaxially in the horizontal direction, and the lower sieve disc reciprocates up and down relative to the upper sieve disc to repeatedly penetrate the sieve holes of the upper sieve disc by the lower needle comb array. Meanwhile, the upper needle comb array reciprocates up and down relative to the upper sieve disc, and the upper needle comb array does not penetrate the sieve holes of the upper sieve disc. The vibrator is used to drive the upper sieve disc and the lower sieve disc to vibrate. The tobacco bunch splitting device can gently split the tobacco bunch, and the tobacco bunch wound into a group is split into dispersed tobacco and removed in time, so that subsequent tobacco quality statistical analysis is facilitated.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of screening devices, in particular to a tobacco strand group disassembling device. BACKGROUND

[0002] In the process of tobacco production, it is necessary to screen tobacco strands to remove unqualified tobacco strands, and to statistically analyze the quality of tobacco strands to guide the adjustment of tobacco sheet cutting parameters of a cutter, so as to improve the proportion of qualified tobacco strands. The existing tobacco quality analysis mainly adopts image recognition technology, that is, the quality of tobacco strands is counted through machine vision. However, the tobacco strands are long and naturally curled, and are easy to entangle with each other to form groups, that is, tobacco strand groups, which contain both qualified tobacco strands and unqualified tobacco strands, and the tobacco strand groups have no obvious and easily identifiable physical characteristics. The existing machine vision still cannot identify the tobacco strands in the tobacco strand groups, and it is difficult to analyze directly without disassembling the tobacco strand groups.

[0003] When disassembling the tobacco strand groups, the characteristics of the tobacco strands and the tobacco strand groups need to be fully considered, for example: the tobacco strand groups are too large to pass through the screen holes of the screen disc; the tobacco strands are light and easy to break; and the separated tobacco strands are easy to entangle together again if not separated in time. Therefore, a device for disassembling tobacco strand groups is needed. SUMMARY

[0004] To solve the above problems, the present application provides a tobacco strand group disassembling device.

[0005] The present application adopts the following technical solutions:

[0006] A tobacco strand group disassembling device, comprising a composite screen disc, an upper needle comb array, a lower needle comb array and a vibrator, the composite screen disc is composed of an upper screen disc and a lower screen disc installed on the same center shaft, the upper screen disc is fixedly connected with the center shaft, the lower screen disc is slidingly connected with the center shaft, at least two spring-sheathed column pins are installed between the upper screen disc and the lower screen disc at the edge, the lower needle comb array is fixed on the upper surface of the lower screen disc and the needle comb tips thereof are respectively aligned with the centers of the screen holes of the upper screen disc, the upper needle comb array is located above the upper screen disc and is oppositely and staggeredly arranged with the lower needle comb array, the upper screen disc and the lower screen disc rotate coaxially in the horizontal direction, and the lower screen disc reciprocates up and down relative to the upper screen disc to make the lower needle comb array repeatedly penetrate the screen holes of the upper screen disc, at the same time, the upper needle comb array reciprocates up and down relative to the upper screen disc, and the upper needle comb array does not penetrate the screen holes of the upper screen disc, and the vibrator is used to drive the upper screen disc and the lower screen disc to vibrate.

[0007] Further, the distance between the upper needle comb array and the upper surface of the upper screen disc is 1mm-100mm.

[0008] Further, the upper needle comb array is in a strip shape, and the number of the upper needle comb array is at least one.

[0009] Further, the lower needle comb array is distributed on the upper surface of the lower sieve tray.

[0010] Further, the upper surface of the upper sieve tray is sequentially divided into a separation zone, a splitting zone and a removal zone around a central shaft.

[0011] Further, a central shaft stepping motor is further included, and the central shaft stepping motor is used to drive the central shaft to rotate to drive the coaxial rotation of the upper sieve tray and the lower sieve tray.

[0012] Further, a first stepping motor and a first screw rod are further included, the first screw rod is installed at the bottom of the lower sieve tray, and the first stepping motor is used to drive the rotation of the first screw rod.

[0013] Further, a second stepping motor and a second screw rod are further included, the second screw rod is installed at the outer side of the upper needle comb array, and the second stepping motor is used to drive the rotation of the second screw rod.

[0014] Further, the tobacco shred bundle splitting device can also be used for splitting the filamentous bundle of tea or Chinese herbal medicine.

[0015] After the above technical scheme is adopted, the present application has the following advantages compared with the background art:

[0016] 1. The tobacco shred bundle splitting device integrates separation, splitting and removal, specifically, the tobacco shreds that are not wound into bundles are removed through screening to expose the tobacco shred bundles in the material, and then the tobacco shred bundles are gently split by the rotation of the composite sieve tray combined with the relative movement of the upper and lower needle comb arrays, and the split tobacco shreds are timely removed to avoid the stacking of the tobacco shreds to be wound into bundles again.

[0017] 2. The tobacco shred bundle splitting device can gently split the tobacco shred bundles, split the tobacco shred bundles wound into bundles into dispersed tobacco shreds and timely remove the tobacco shreds, so as to facilitate the subsequent statistical analysis of the tobacco shred quality. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 FIG. 1 is a schematic diagram of the overall structure of the tobacco shred bundle splitting device of the present application;

[0019] Figure 2 FIG. 3 is a sectional view of the composite sieve tray of the present application;

[0020] Figure 3 FIG. 4 is a top view of the composite sieve tray of the present application;

[0021] Figure 4Structure diagram of separation zone, split zone and removal zone of the composite sieve tray of the present application;

[0022] Figure 5 Sectional view of the composite sieve tray of the present application when splitting tobacco strands.

[0023] Explanation of reference signs:

[0024] 100, composite sieve tray; 110, upper sieve tray; 111, separation zone; 112, split zone; 113, removal zone; 120, lower sieve tray; 130, stud;

[0025] 200, upper gill array;

[0026] 300, lower gill array;

[0027] 400, vibrator;

[0028] 500, central shaft stepper motor; 510, central shaft;

[0029] 600, first stepper motor; 610, first lead screw;

[0030] 700, second stepper motor; 710, second lead screw. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present application clearer, the present application will be further described in detail below in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and are not used to limit the present application. EXAMPLE

[0032] As Figures 1-3As shown, a tobacco bunch splitting device comprises a composite sieve tray 100, an upper needle comb array 200, a lower needle comb array 300 and a vibrator 400, the composite sieve tray 100 is composed of an upper sieve tray 110 and a lower sieve tray 120 which are mounted on the same central shaft 510, the upper sieve tray 110 is fixedly connected with the central shaft 510, the lower sieve tray 120 is slidingly connected with the central shaft 510, at least two spring sleeved column pins 130 are mounted between the upper sieve tray 110 and the lower sieve tray 120 at the edges, the lower needle comb array 300 is fixed on the upper surface of the lower sieve tray 120 and the needle comb tips thereof are respectively aligned with the sieve hole centers of the upper sieve tray 110, the upper needle comb array 200 is located above the upper sieve tray 110 and is arranged in opposite staggered manner with the lower needle comb array, the upper sieve tray 110 and the lower sieve tray 120 rotate coaxially in horizontal direction, and the lower sieve tray 120 reciprocates up and down relative to the upper sieve tray 110 to make the lower needle comb array 300 repeatedly penetrate the sieve holes of the upper sieve tray 110, at the same time, the upper needle comb array 200 reciprocates up and down relative to the upper sieve tray 110, and the upper needle comb array 200 does not penetrate the sieve holes of the upper sieve tray 110, the vibrator 400 is used to drive the upper sieve tray 110 and the lower sieve tray 120 to vibrate.

[0033] Specifically, the diameter of the composite sieve tray 100 of the embodiment is 600 mm, the composite sieve tray 100 rotates counterclockwise along the central shaft 510 at a frequency of one circle per 20 seconds; the sieve holes of the upper sieve tray 110 are circular holes with a diameter of 5 mm; the sieve holes of the lower sieve tray 120 are circular holes with a diameter of 11 mm; the comb needles of the lower needle comb array 300 have a length of 40 mm and a diameter of 1.4 mm, and the ratio of the hole to the comb needle is 1:1; the width of the upper needle comb array 200 is 20 mm, and the length is 280 mm, which is slightly smaller than the radius of the composite sieve tray 100 (including the part of the comb needle), and the comb needles thereon are arranged in radial direction; the vibration frequency of the vibrator 400 is 1500 Hz; the lower needle comb array 300 is uniformly distributed on the lower sieve tray 120, and the maximum distance of penetration through the upper surface of the upper sieve tray 110 is 15 mm; the upper needle comb array 200 can be lowered from 100 mm to 1 mm above the upper surface of the upper sieve tray 110, and the upper needle comb array 200 only has up and down motion without turning motion. The upper needle comb array 200 and the lower needle comb array 300 make nonlinear reciprocating motion at a frequency of one time per 1.5 seconds.

[0034] The upper needle comb array 200 is strip-shaped, and the number of the upper needle comb array 200 is at least one, and two upper needle comb arrays 200 are arranged in the embodiment to increase the number of tobacco bunch splitting and improve the tobacco bunch splitting efficiency. The lower needle comb array 300 is distributed on the upper surface of the lower sieve tray 120.

[0035] As Figure 4As shown, the upper surface of the upper sieve tray 110 is sequentially divided into a separation zone 111, a splitting zone 112 and a removal zone 113 around the central shaft 510. The tobacco material contains both dispersed tobacco and tobacco clusters. When in use, the tobacco material is put into the separation zone 111 of the upper sieve tray 110, and the tobacco material is dispersed by the vibrator 400. The dispersed tobacco directly passes through the sieve holes of the upper sieve tray 110 and the lower sieve tray 120 in sequence and is screened out, while the remaining tobacco clusters gradually emerge and are trapped on the upper sieve tray 110. This process is the separation process of the tobacco clusters. With the rotation of the upper sieve tray 110, the tobacco clusters enter the splitting zone 112. In the splitting zone 112, the upper needle comb array 200 and the lower needle comb array 300 are inserted into the tobacco clusters in the vertical direction and apply forces in opposite directions to the tobacco clusters, thereby splitting the tobacco clusters. Since the upper sieve tray 110 and the lower sieve tray 120 move up and down in a nonlinear reciprocating manner, the time when the upper needle comb array 200 and the lower needle comb array 300 are inserted into the tobacco clusters is controlled, so that the tobacco clusters can receive multiple gentle splitting and prevent the tobacco from breaking. Similarly, with the continuous rotation of the upper sieve tray 110, the split tobacco clusters enter the removal zone 113 and are screened out from the upper sieve tray 110 and the lower sieve tray 120 in sequence by vibration, so that the split tobacco is removed in time to avoid the split tobacco from being wound with new tobacco to form tobacco clusters and improve the efficiency of tobacco separation. One cycle of the composite sieve tray 100 is one rotation, and a complete separation, splitting and removal cycle of the tobacco clusters is performed in each cycle.

[0036] The composite sieve tray 100 further comprises a central shaft stepping motor 500 for driving the central shaft 510 to rotate to drive the upper sieve tray 110 and the lower sieve tray 120 to rotate coaxially. When the central shaft stepping motor 500 is started, the central shaft stepping motor 500 drives the central shaft 510 to rotate, thereby driving the upper sieve tray 110 to rotate. Since the upper sieve tray 110 and the lower sieve tray 120 are connected by the dowel pin 130, the lower sieve tray 120 can be driven to rotate synchronously. Since the upper sieve tray 110 and the lower sieve tray 120 are installed on the same central shaft 510, the relative movement of the upper sieve tray 110 and the lower sieve tray 120 in the horizontal direction can be prevented, thereby ensuring that the lower needle comb array 300 can accurately pass through the sieve holes of the upper sieve tray 110.

[0037] It also includes a first stepper motor 600 and a first lead screw 610. The first lead screw 610 is installed at the bottom of the lower screen plate 120, and the first stepper motor 600 is used to drive the first lead screw 610 to rotate. This embodiment also includes a connecting rod for fixing the nut on the first lead screw 610. One end of the connecting rod is fixed to the nut on the first lead screw 610, and the other end is fixed to the central shaft 510. When the first stepper motor 600 is started, it drives the first lead screw 610 to rotate. Since the nut on the first lead screw 610 is fixed to the central shaft 510 via the connecting rod, the first lead screw 610 moves up or down relative to the nut, thereby pushing the lower screen plate 120 to reciprocate up and down. This causes the lower needle comb array 300 on the lower screen plate 120 to repeatedly penetrate the screen holes of the upper screen plate 110, such as... Figure 5 As shown, when the lower needle comb array 300 passes through the sieve holes of the upper sieve plate 110, it will simultaneously pass through the tobacco shreds located on the upper sieve plate 110, which will temporarily fix the tobacco shreds.

[0038] It also includes a second stepper motor 700 and a second lead screw 710. The second lead screw 710 is installed on the outside of the upper needle comb array 200, and the second stepper motor 700 is used to drive the second lead screw 710 to rotate. In this embodiment, a bracket is also provided to fix the nut on the second lead screw 710. When the second stepper motor 700 is started, the second stepper motor 700 drives the second lead screw 710 to rotate. Since the nut of the second lead screw 710 is fixed by the bracket, the second lead screw 710 moves upward or downward relative to the nut on it, thereby driving the upper needle comb array 200 downward to approach the surface of the upper screen 110 and insert into the tobacco bundle. Since the upper screen 110 and the lower screen 120 rotate coaxially at the same time, the lower needle comb array 300 rotates relative to the upper needle comb array 200. Thus, the upper needle comb array 200 and the lower needle comb array 300 apply forces in opposite directions to the tobacco bundle, causing the tobacco in the tobacco bundle to separate.

[0039] The tobacco shred splitting device in this embodiment uses a stepper motor to control the non-linear up-and-down reciprocating motion of the upper comb array 200 and the lower comb array 300, thereby adjusting the depth, duration, and frequency of insertion into the tobacco shred bundle. Combined with the rotation speed of the composite sieve disc 100, this controls the force and frequency of tobacco shred bundle splitting, improving the splitting quality. The split tobacco shreds are then used for subsequent tobacco quality statistical analysis, such as using machine vision to statistically analyze the morphology and quality of the tobacco shreds. Besides splitting and separating tobacco shred bundles, this tobacco shred bundle splitting device can also be used to split shredded bundles of tea leaves or traditional Chinese medicine.

[0040] The above merely describes preferred specific embodiments of the present application, but the protection scope of the present application is not limited thereto, any changes or replacements within the technical scope disclosed by the present application, which can be easily thought by those skilled in the art, should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A tobacco rod breaking apparatus characterised in that: The device comprises a composite sieve disc, an upper needle comb array, a lower needle comb array and a vibrator, the composite sieve disc is composed of an upper sieve disc and a lower sieve disc mounted on the same central shaft, the upper sieve disc is fixedly connected with the central shaft, the lower sieve disc is slidably connected with the central shaft, at least two spring sleeved column pins are mounted between the upper sieve disc and the lower sieve disc at the edge, the lower needle comb array is fixed on the upper surface of the lower sieve disc and the needle comb tips thereof are respectively aligned with the sieve hole centers of the upper sieve disc, the upper needle comb array is located above the upper sieve disc and is arranged in a staggered manner opposite to the lower needle comb array, the upper sieve disc and the lower sieve disc rotate coaxially in the horizontal direction, and the lower sieve disc reciprocates up and down relative to the upper sieve disc to make the lower needle comb array repeatedly penetrate the sieve holes of the upper sieve disc, while the upper needle comb array reciprocates up and down relative to the upper sieve disc, the upper needle comb array does not rotate, and the upper needle comb array does not penetrate the sieve holes of the upper sieve disc, and the vibrator is used to drive the upper sieve disc and the lower sieve disc to vibrate.

2. A tobacco rod break-up device as claimed in claim 1, characterised in that: The distance between the upper needle comb array and the upper surface of the upper sieve disc is 1mm-100mm.

3. A tobacco rod break-up device as claimed in claim 2, characterised in that: The upper needle comb array is in a strip shape, and the number of the upper needle comb array is at least one.

4. A tobacco rod break-up device as claimed in claim 3, characterised in that: The lower needle comb array is distributed on the upper surface of the lower sieve disc.

5. A tobacco rod break-up device as claimed in claim 4, characterised in that: The upper surface of the upper sieve disc is sequentially divided into a separation zone, a splitting zone and a removal zone around the central shaft.

6. A tobacco rod break-up device as claimed in claim 5, characterised in that: A central shaft stepping motor is further included, which is used to drive the central shaft to rotate to drive the upper sieve disc and the lower sieve disc to rotate coaxially.

7. A tobacco rod break-up device as claimed in claim 6, characterised in that: A first stepping motor and a first lead screw are further included, the first lead screw is mounted on the bottom of the lower sieve disc, and the first stepping motor is used to drive the first lead screw to rotate.

8. A tobacco rod break-up device as claimed in claim 7, characterised in that: A second stepping motor and a second lead screw are further included, the second lead screw is mounted on the outer side of the upper needle comb array, and the second stepping motor is used to drive the second lead screw to rotate.

9. A tobacco rod break-up device as claimed in any one of claims 1 to 8, characterised in that: The tobacco plug splitting device is also used for splitting tea leaves or medicinal materials in a silk or plug shape.

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