Method for cutting off and uniformly proportioning bulk tobacco leaves

Abstract

The method for cutting off the bulk tobacco leaves and uniformly proportioning the bulk tobacco leaves comprises the following steps: spreading 2n different bulk tobacco leaves into a layer of tobacco leaves by a spreading and cutting device respectively, and cutting off the tobacco leaves; the n gathering belt conveyors gather the bulk tobacco leaves at the discharging ports of the two adjacent spreading and cutting devices and then send the bulk tobacco leaves to the feeding ends of the gathering inclined belt conveyors, the discharging ports of the gathering inclined belt conveyors gather all the bulk tobacco leaves and send the bulk tobacco leaves into the reciprocating material distribution trolley, and the reciprocating material distribution trolley evenly distributes all the gathered bulk tobacco leaves to the n transverse material distribution trolleys. Each transverse material distribution trolley uniformly distributes the bulk tobacco leaves into the longitudinal material distribution trolleys on the two adjacent matching opposite top cabinets, the longitudinal material distribution trolleys uniformly spread the fed bulk tobacco leaves in the length direction of the matching opposite top cabinets, and the bulk tobacco leaves are uniformly mixed together; the mixed bulk tobacco leaves are stored in the matching opposite top cabinet, and when needed, the bulk tobacco leaves are conveyed into the gathering discharging belt conveyor through a conveying belt arranged below the matching opposite top cabinet.

Description

Technical Field

[0001] The present invention relates to the field of tobacco threshing and redrying production, and particularly relates to a method for cutting and evenly proportioning loose tobacco leaves. Background Art

[0002] In the existing domestic tobacco threshing and redrying production lines at present, the leaf proportioning, cutting and feeding section adopts a completely manual leaf proportioning and laying mode. Each shift requires 48 - 60 workers, and 144 - 180 workers are needed for three shifts a day. Moreover, the dust amount in this section is very large, which poses a great health hazard to the operators. And this working form has problems such as large labor workload, high labor cost, poor working environment, and the production efficiency and product quality of the production line are easily affected by humans, which restricts the further improvement of the automation and intelligent production of the tobacco threshing and redrying production line, and it is difficult to meet the relevant requirements of the intelligent and production automation of the tobacco threshing and redrying production line, seriously restricting the improvement of the product quality of the enterprise.

[0003] The above problems are an urgent problem that all enterprises in the industry are facing together. Methods to solve this problem have been tried at home and abroad, but no satisfactory results have been achieved. Other manufacturers are also trying to adopt other methods to achieve it, but there is no feasible solution and related products at present.

[0004] With the development of society, enterprises have higher and stricter requirements for safety, efficiency, and intelligent production, which will inevitably force enterprises to transform and upgrade the leaf proportioning, cutting and laying section to meet the requirements of the tobacco leaf processing technology specification and cigarette processing technology specification. Summary of the Invention

[0005] In view of the above problems, aiming at the current situation of manual feeding for proportioning and cutting, in order to improve production efficiency, solve the problems of using too many workers, low production efficiency, poor working environment, and uncontrollable product quality, the inventor conducts research on the loose tobacco leaf proportioning, cutting and feeding, and provides a method for cutting and evenly proportioning loose tobacco leaves, which meets the relevant requirements of the tobacco redrying enterprises for improving quality, reducing consumption, reducing staff and increasing efficiency, and upgrading the automation and intelligent production line.

[0006] The present invention can be used in any tobacco leaf processing and tobacco threshing and redrying production line, and can be used in combination with other related equipment to meet the feeding needs of the loose tobacco leaf proportioning and cutting of the tobacco redrying enterprises, and the whole production process of leaf proportioning and cutting uses automated equipment to replace manual production needs, and at the same time meets the proportioning requirements of the user's CV value.

[0007] In order to achieve the invention purpose of this application, the following technical solutions are adopted in this application:

[0008] A method for cutting and evenly proportioning loose tobacco leaves of the present invention, wherein: it includes the following steps:

[0009] (1). 2n different kinds of loose tobacco leaves are respectively cut

[0010] 2n different kinds of loose tobacco leaves are simultaneously fed into 2n identical spreading and cutting devices respectively, and are spread into a layer of tobacco leaves and cut into sheet-shaped tobacco leaves with a length of 100 mm to 500 mm. n is a natural number greater than or equal to 2;

[0011] (II). Uniform mixing of 2n kinds of loose tobacco leaves

[0012] n collecting belt conveyors respectively collect the loose tobacco leaves at the discharge ports of two adjacent spreading and cutting devices and then feed them into the feeding end of the collecting inclined belt conveyor. The discharge port of the collecting inclined belt conveyor collects all the loose tobacco leaves and feeds them into the reciprocating distributing vehicle. The reciprocating distributing vehicle evenly distributes all the collected loose tobacco leaves to n transverse distributing vehicles. Each transverse distributing vehicle evenly distributes the loose tobacco leaves to the longitudinal distributing vehicles on two adjacent matching opposite cabinets. The longitudinal distributing vehicles evenly spread the fed loose tobacco leaves in the length direction of the matching opposite cabinets. The 2n kinds of loose tobacco leaves are evenly mixed together;

[0013] (III). Storage and discharge of the mixed tobacco leaves

[0014] The mixed loose tobacco leaves are stored in the matching opposite cabinets. When needed, the conveyor installed under the matching opposite cabinets conveys the loose tobacco leaves into the collecting and discharging belt conveyor, and the collecting and discharging belt conveyor sends out the loose tobacco leaves in the 2n matching opposite cabinets;

[0015] (IV). Controlled by the electric control system

[0016] The discharge speeds and flow rates of the spreading and cutting devices, the collecting belt conveyors, the longitudinal distributing vehicles, the collecting and discharging belt conveyor, the reciprocating distributing vehicle, the transverse distributing vehicles and the conveyor are all controlled by the electric control system, so as to control the blending ratio of the 2n kinds of loose tobacco leaves.

[0017] The method for cutting and evenly proportioning loose tobacco leaves of the present invention, wherein: the spreading and cutting device comprises a turnover box machine, a bin type feeder, an electronic belt scale, a first foreign object detector, a permanent magnet metal detector, a material spreading vibration tank, a feeding belt, a longitudinal and transverse cutting machine and a discharge belt which are connected in sequence.

[0018] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: a discharge door is further installed on the material spreading and vibrating trough, and the electric control system controls the opening and closing of the discharge door. When the foreign object detector or the permanent magnet metal detector respectively detects foreign objects in the bulk tobacco leaves on the material spreading and vibrating trough, the electric control system opens the discharge door, and the bulk tobacco leaves on the material spreading and vibrating trough fall onto the sorting belt installed below it. Then, the sorting belt sends the bulk tobacco leaves to the side-line aggregation belt. The operator stands beside the side-line aggregation belt and picks out the foreign objects on it. A second foreign object detector is installed at the discharge port of the side-line aggregation belt. After the bulk tobacco leaves detected by the second foreign object detector are qualified, they are sent into the side-line box and then returned to any one of the 2n thinning and cutting devices, namely the turnover box. When the bulk tobacco leaves detected by the second foreign object detector are unqualified, the electric control system controls the side-line aggregation belt to reverse, allowing the operator to pick out the foreign objects in it again until the detection is qualified.

[0019] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: the aggregated inclined belt conveyor is an inclined belt conveyor, and n aggregated belt conveyors send bulk tobacco leaves to different heights of the aggregated inclined belt conveyor.

[0020] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: the discharge port of the aggregated inclined belt conveyor sends bulk tobacco leaves into the center of the reciprocating cloth truck.

[0021] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: the reciprocating cloth truck evenly distributes the bulk tobacco leaves to the n transverse cloth trucks below it.

[0022] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: the transverse cloth truck is installed above two adjacent proportioning opposite cabinets, the longitudinal cloth truck reciprocates along the length direction of the proportioning opposite cabinets, and the transverse cloth truck moves along the transverse direction of the two longitudinal cloth trucks, and evenly distributes the bulk tobacco leaves on it to the two adjacent longitudinal cloth trucks.

[0023] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: a conveyor belt is installed at the bottom of the proportioning opposite cabinet, and the discharge port of the conveyor belt is connected to the aggregated discharge belt conveyor. When the bulk tobacco leaves need to be discharged, the electric control system controls the operation of the conveyor belt and transports the bulk tobacco leaves in the proportioning opposite cabinet to the aggregated discharge belt conveyor.

[0024] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: n is 2, the thinning and cutting device is 4, the proportioning opposite cabinet is 4, the aggregated belt conveyor is 2; the transverse cloth truck is 2.

[0025] Method for cutting and evenly proportioning bulk tobacco leaves of the present invention, wherein: the first foreign object detector and the second foreign object detector are ray detectors or optical detectors.

[0026] The working principle of the present invention is as follows:

[0027] In the stacking area of the tobacco frame raw materials for loose tobacco, different grades of tobacco frames filled with raw tobacco that require formulation are transported to the box-turning feeder by manual or mechanical equipment. The tobacco leaves of different grades that require formulation are turned over into different feeder bins by the box-turning machine, and the electronic flow scale set behind the steep-angle belt of the feeder is used to control the material flow. The tobacco leaves after ratio (material flow) are first subjected to foreign object detection. If there are foreign objects, the material does not enter the main line and falls from the flap discharge door on the paving vibrating trough, enters the side line for manual selection and secondary foreign object detection and boxing, and then enters the box-turning feeding main line again as needed. The tobacco leaves that pass the foreign object detection enter the longitudinal and transverse cutting equipment from the paving vibrating trough, are longitudinally and transversely cut, and then enter the collecting belt for secondary mixing. The mixed material is sent into the formulation cabinet (each grade can enter a group of cabinets) through the collecting belt, and is mixed again by the longitudinal and transverse cloth trucks on the cabinet. The material in the cabinet after mixing is discharged separately according to the production formulation onto the subsequent collecting belt, and is sent into the subsequent production line through the subsequent collecting belt. The discharge speed of the cabinet can be adjusted according to the formulation requirements, so that the discharge speeds of 1, 2, 3, 4... are different, thereby controlling the discharge flow, realizing the third ratio of the material, and realizing the fine production of users.

[0028] To meet the needs of different production capacities, multiple paths of the even material longitudinal and transverse cutting equipment in the tobacco frame loading section of loose tobacco can be set as required.

[0029] Detection devices are set on the longitudinal and transverse cutting and conveying equipment of the system, which can realize the automatic foreign object detection of the material.

[0030] The beneficial effects of the method for cutting and evenly formulating loose tobacco leaves of the present invention are as follows:

[0031] By this method, it can not only realize the automatic ratio cutting of loose tobacco leaves in the pretreatment section of the threshing and redrying enterprise, but also cancel the 48 - 60 workers per shift and the 144 - 180 workers for laying tobacco every day in three shifts on the current production line. It not only improves the economic benefits of the enterprise, reduces the labor intensity of workers, but also improves the working environment of workers. At the same time, it realizes the automatic ratio of three-level raw materials, thereby improving the quality of products.

[0032] The main difference between the method for cutting and uniformly proportioning loose tobacco leaves of the present invention and the previous methods lies in that: the method adopts the processes of turning the box for feeding, proportioning and feeding with an electronic belt scale, detecting foreign matters in the materials, longitudinally and horizontally cutting and summarizing the materials, then entering the formula cabinet for proportioning, improving the proportioning accuracy and purity of the materials while reducing the number of workers, and performing shunt cutting and proportioning according to the longitudinal and horizontal cutting and the requirements of the formula cabinet and then merging, and then adopting the process of re-proportioning and merging and conveying in the proportioning cabinet. Finally, the loose original tobacco in the tobacco box is accurately proportioned and then sent into the production line to meet the production needs. The present invention has the function of proportioning materials with the same grade or different grades in each feeding line and the subsequent formula cabinet.

[0033] The content of the present invention will be further elaborated below in conjunction with the accompanying drawings of the specification and embodiments. Brief Description of the Drawings

[0034] Figure 1 It is a three-dimensional schematic diagram of the equipment used for the method of cutting and uniformly proportioning loose tobacco leaves of the present invention;

[0035] Figure 2 is Figure 1 a three-dimensional schematic diagram of the thinning and cutting device in

[0036] Figure 3 is Figure 1 a three-dimensional schematic diagram of the equipment in except for the thinning and cutting device and the electric control system;

[0037] Figure 4 is Figure 1 a top view schematic diagram of

[0038] In Figures 1 to 4 : Label 1 is a box-turning machine; label 2 is a bin-type feeder; label 3 is an electronic belt scale; label 4 is a first foreign matter detector; label 5 is a permanent magnetic metal detector; label 6 is a selection belt; label 7 is a material spreading and vibrating trough; label 8 is a feeding belt; label 9 is a longitudinal and horizontal cutting machine; label 10 is a discharging belt; label 11 is a summary belt conveyor; label 12 is a summary inclined belt conveyor; label 13 is a proportioning counter cabinet; label 14 is a longitudinal feeding vehicle; label 15 is a summary discharging belt conveyor; label 16 is a reciprocating feeding vehicle; label 17 is a transverse feeding vehicle; label 18 is an electric control system; label 19 is a conveyor belt; label 20 is a thinning and cutting device; label 61 is a side-line summary belt; label 62 is a side-line box; label 63 is a second foreign matter detector; label 64 is a discharging door. Detailed Embodiment

[0039] The present invention will be further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0040] As Figures 1 to 4 shown, the method for cutting and uniformly proportioning loose tobacco leaves of the present invention includes the following steps:

[0041] (1). Four different types of loose tobacco leaves are respectively cut

[0042] Four different types of loose tobacco leaves are simultaneously and respectively fed into four identical spreading and cutting devices 20, and are spread into a layer of tobacco leaves and cut into sheet-shaped tobacco leaves with a length of 100 mm to 500 mm. The spreading and cutting device 20 includes a turnover box machine 1, a bin-type feeder 2, an electronic belt scale 3, a first foreign object detector 4, a permanent magnet metal detector 5, a material spreading vibration trough 7, a feeding belt 8, a longitudinal and transverse cutting machine 9, and a discharging belt 10 which are connected in sequence. An outlet door 64 is also installed on the material spreading vibration trough 7, and the electric control system 18 controls the opening and closing of the outlet door 64. When the foreign object detector 4 or the permanent magnet metal detector 5 respectively detects foreign objects in the loose tobacco leaves on the material spreading vibration trough 7, the electric control system 18 opens the outlet door 64, and the loose tobacco leaves on the material spreading vibration trough 7 fall into the selection belt 6 installed below it. Then the selection belt 6 sends the loose tobacco leaves into the side-line summary belt 61. The operator stands beside the side-line summary belt 61 and picks out the foreign objects on it. A second foreign object detector 63 is installed at the outlet of the side-line summary belt 61. After the loose tobacco leaves detected by the second foreign object detector 63 are qualified, they are sent into the side-line box 62 and then returned to any one of the turnover box machines 1 in the 2n spreading and cutting devices 20. When the loose tobacco leaves detected by the second foreign object detector 63 are unqualified, the electric control system 18 controls the side-line summary belt 61 to reverse, so that the operator can pick out the foreign objects in it again until the detection is qualified;

[0043] (2). The four types of loose tobacco leaves are evenly mixed

[0044] Two summary belt conveyors 11 respectively summarize the loose tobacco leaves at the outlets of two adjacent spreading and cutting devices 20 and send them to the feeding end of the summary inclined belt conveyor 12. The summary inclined belt conveyor 12 is an inclined belt conveyor. The two summary belt conveyors 11 send the loose tobacco leaves to different heights of the summary inclined belt conveyor 12. The outlet of the summary inclined belt conveyor 12 summarizes all the loose tobacco leaves and sends them into the center of the reciprocating cloth-feeding vehicle 16. The reciprocating cloth-feeding vehicle 16 evenly distributes all the summarized loose tobacco leaves to the two transverse cloth-feeding vehicles 17 below it. Each transverse cloth-feeding vehicle 17 is installed above two adjacent matching counter cabinets 13. The longitudinal cloth-feeding vehicle 14 reciprocates along the length direction of the matching counter cabinets 13, and the transverse cloth-feeding vehicle 17 moves along the transverse direction of the two longitudinal cloth-feeding vehicles 14 and evenly distributes the loose tobacco leaves on it to the two adjacent longitudinal cloth-feeding vehicles 14. The longitudinal cloth-feeding vehicle 14 evenly spreads the fed loose tobacco leaves in the length direction of the matching counter cabinets 13, and the four types of loose tobacco leaves are evenly mixed together;

[0045] (3). Storage and discharging of the mixed tobacco leaves

[0046] The mixed loose tobacco leaves are stored in the proportion matching top cabinet 13. A conveyor belt 19 is installed at the bottom of the proportion matching top cabinet 13. The discharge port of the conveyor belt 19 is connected to the aggregated discharge belt conveyor 15. When the loose tobacco leaves need to be discharged, the electric control system 18 controls the operation of the conveyor belt 19 and transports the loose tobacco leaves in the proportion matching top cabinet 13 to the aggregated discharge belt conveyor 15.

[0047] (4) Controlled by the electric control system 18

[0048] The discharging speeds and flow rates of the thinning and cutting device 20, the aggregated belt conveyor 11, the longitudinal cloth car 14, the aggregated discharge belt conveyor 15, the reciprocating cloth car 16, the transverse cloth car 17 and the conveyor belt 19 are all controlled by the electric control system 18, so as to control the blending ratio of the 4 types of loose tobacco leaves.

[0049] The first foreign object detector 4 and the second foreign object detector 63 are ray detectors or optical detectors.

[0050] The above uses specific examples to elaborate on the present invention, which is only used to help understand the present invention and is not intended to limit the present invention. For those skilled in the technical field to which the present invention pertains, several simple deductions, deformations or substitutions can also be made based on the idea of the present invention.

Claims

1. A method for cutting and evenly proportioning loose tobacco leaves, characterized in that: It includes the following steps: (I) 2n different loose tobacco leaves are cut 2n different loose tobacco leaves are simultaneously fed into 2n identical thinning and cutting devices (20), spread into a layer of tobacco leaves and cut into sheets of tobacco leaves with a length of 100 mm to 500 mm, where n is a natural number greater than or equal to 2; (ii) 2n kinds of loose tobacco leaves are evenly mixed n collecting belt conveyors (11) collect the loose tobacco leaves from the discharge ports of two adjacent thinning and cutting devices (20) and send them to the feeding end of the collecting inclined belt conveyor (12). The discharge port of the collecting inclined belt conveyor (12) collects all the loose tobacco leaves and sends them to the reciprocating distribution vehicle (16). The reciprocating distribution vehicle (16) evenly distributes all the collected loose tobacco leaves to n horizontal distribution vehicles (17). Each horizontal distribution vehicle (17) evenly distributes the loose tobacco leaves to the longitudinal distribution vehicles (14) on the two adjacent matching top cabinets (13). The longitudinal distribution vehicles (14) evenly spread the sent loose tobacco leaves in the longitudinal direction of the matching top cabinet (13). The 2n kinds of loose tobacco leaves are evenly mixed together. (III) Storage and discharging of mixed tobacco leaves The mixed loose tobacco leaves are stored in the proportioning cabinet (13). When needed, the loose tobacco leaves are transported to the collecting and discharging belt conveyor (15) by a conveyor belt (19) installed under the proportioning cabinet (13). The collecting and discharging belt conveyor (15) delivers the loose tobacco leaves in the 2n proportioning cabinets (13). (iv) Control by the electronic control system (18) The discharging speed and flow rate of the thinning and cutting device (20), the collecting belt conveyor (11), the longitudinal material distributing vehicle (14), the collecting discharging belt conveyor (15), the reciprocating material distributing vehicle (16), the transverse material distributing vehicle (17) and the conveyor belt (19) are all controlled by the electronic control system (18), thereby controlling the blending ratio of the 2n kinds of loose tobacco leaves.

2. The method for cutting and evenly proportioning loose tobacco leaves according to claim 1, characterized in that: The thinning and cutting device (20) comprises a box tipper (1), a silo feeder (2), an electronic belt scale (3), a first foreign matter detector (4), a permanent magnet metal detector (5), a material spreading vibration trough (7), a feed belt (8), a longitudinal and transverse cutting machine (9) and a discharge belt (10) which are connected in sequence.

3. The method for cutting and evenly proportioning loose tobacco leaves according to claim 2, characterized in that: The material spreading vibration trough (7) is also provided with a discharge door (64), and the electric control system (18) controls the opening and closing of the discharge door (64). When the foreign matter detector (4D) or the permanent magnet metal detector (5) respectively detects that there are foreign matters in the loose tobacco leaves on the material spreading vibration trough (7), the electric control system (18) opens the discharge door (64), and the loose tobacco leaves on the material spreading vibration trough (7) fall onto the selection belt (6) installed below it, and then the selection belt (6) sends the loose tobacco leaves to the side line collection belt (61), and the operator stands on the side line collection belt (61) to collect the loose tobacco leaves. 1) beside the side, pick out the foreign matter on it, and install a second foreign matter detector (63) at the discharge port of the side line collection belt (61). After the loose tobacco leaves are qualified after the inspection by the second foreign matter detector (63), they are sent to the side line box (62) and then returned to any one of the 2n thinning and cutting devices (20) in the box turning machine (1). When the loose tobacco leaves detected by the second foreign matter detector (63) are unqualified, the electronic control system (18) controls the side line collection belt (61) to reverse, so that the operator can select the foreign matter therein again until the inspection is qualified.

4. The method for cutting and evenly proportioning loose tobacco leaves according to claim 3, characterized in that: The collecting inclined belt conveyor (12) is an inclined belt conveyor, and n collecting belt conveyors (11) convey loose tobacco leaves to different heights of the collecting inclined belt conveyor (12).

5. The method for cutting and evenly proportioning loose tobacco leaves according to claim 4, characterized in that: The discharging port of the collecting inclined belt conveyor (12) delivers the loose tobacco leaves into the center of the reciprocating distribution vehicle (16).

6. The method for cutting and evenly proportioning loose tobacco leaves according to claim 5, characterized in that: The reciprocating distribution vehicle (16) evenly distributes the loose tobacco leaves to the n horizontal distribution vehicles (17) below it.

7. The method for cutting and evenly proportioning loose tobacco leaves according to claim 6, characterized in that: The transverse distribution vehicle (17) is installed above two adjacent proportioning cabinets (13), and the longitudinal distribution vehicle (14) reciprocates along the length direction of the proportioning cabinet (13). The transverse distribution vehicle (17) moves along the transverse direction of the two longitudinal distribution vehicles (14) to evenly distribute the loose tobacco leaves on the two adjacent longitudinal distribution vehicles (14).

8. The method for cutting and evenly proportioning loose tobacco leaves according to claim 7, characterized in that: A conveyor belt (19) is installed at the bottom of the proportioning cabinet (13), and the discharge port of the conveyor belt (19) is connected to the collecting and discharging belt conveyor (15). When the loose tobacco leaves need to be discharged, the electric control system (18) controls the conveyor belt (19) to run and transport the loose tobacco leaves in the proportioning cabinet (13) to the collecting and discharging belt conveyor (15).

9. The method for cutting and evenly proportioning loose tobacco leaves according to claim 8, characterized in that: The number n is 2, the number of the thinning and cutting devices (20) is 4, the number of the proportioning cabinets (13) is 4, the number of the collecting belt conveyors (11) is 2; and the number of the transverse material distribution vehicles (17) is 2.

10. The method for cutting and evenly proportioning loose tobacco leaves according to claim 9, characterized in that: The first foreign matter detector (4) and the second foreign matter detector (63) are radiation detectors or optical detectors.

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