On-line boxing density detection device for threshed and redried finished tobacco strips

Abstract

The utility model relates to an on-line boxing density detection device for threshed and redried finished tobacco strips, which is mounted on a main pressure head of a packer and comprises a mounting seat, a pressure sensor and a sealing protective cover. And the pressure sensors are uniformly distributed on the bottom surface of the mounting seat. According to the device, the pressure values of multiple position points of each box of tobacco leaves are measured, and the density distribution condition of tobacco bales can be obtained according to the pressure values, so that data support is provided for improving the boxing density uniformity.

Description

Technical Field

[0001] The utility model relates to the technical field of tobacco production, in particular to an online packing density detection device for finished tobacco strips after threshing and redrying. Background Art

[0002] The packing density in the pre-pressing and packaging stage of the leaf threshing and re-drying production line is an important process indicator. This indicator can effectively feedback the uniformity of the feeding in the length and width directions of the discharge box, and can also feedback the pre-pressing effect of the pre-pressing equipment. The uniformity of the density of the tobacco blanks in the tobacco box after pre-pressing will also affect the subsequent storage and tobacco aging process.

[0003] In the process of threshing and re-roasting, the requirement of homogenization is increasingly being introduced to various processing companies. Currently, there is no online detection equipment related to packing density in the industry, and there is a lack of means to improve the uniformity of packing density.

[0004] In view of the above problems, the inventor of the present invention finally obtained the present invention after a long period of research and practice. Utility Model Content

[0005] In order to solve at least one aspect of the above technical problems, the utility model provides an online packing density detection device for finished tobacco strips after threshing and redrying.

[0006] The technical solution adopted by the utility model is:

[0007] Provided is an online packing density detection device for finished tobacco strips after threshing and redrying, which is installed on the main pressure head of the baler, and the density detection device includes a mounting seat and a pressure sensor;

[0008] The mounting seat is fixed to the bottom end of the main pressure head, the pressure sensor is fixed to the bottom surface of the mounting seat, and there are multiple pressure sensors evenly distributed on the bottom surface of the mounting seat.

[0009] Furthermore, the density detection device also includes a sealing protection cover, which is connected to the upper end of the mounting seat and wraps the joint between the main pressure head and the mounting seat.

[0010] Furthermore, the density detection device can withstand a pressure of 2 tons.

[0011] Furthermore, there are 9 pressure sensors, with 3 equally spaced in each row and 3 equally spaced in each column.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] The utility model provides an online packing density detection device for finished tobacco leaves after threshing and redrying, which can measure the pressure values ​​at multiple positions of each box of tobacco leaves, and the density distribution of the cigarette packs can be obtained according to the size of each pressure value, thereby providing data support for improving the uniformity of packing density. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 A schematic structural diagram showing an online packing density detection device for finished tobacco strips after threshing and redrying according to an embodiment of the present invention;

[0016] Figure 2 A schematic structural diagram showing an angle of the feeding and distributing mechanism of the baler;

[0017] Figure 3 A schematic structural diagram of the feeding and distributing mechanism of the baler is shown from another angle. DETAILED DESCRIPTION

[0018] The above and other technical features and advantages of the present invention are described in more detail below in conjunction with the accompanying drawings.

[0019] As used herein, the term "including" and its variations mean open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "based at least in part on". The terms "an example embodiment" and "an embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". Other explicit and implicit definitions may also be included below.

[0020] At present, with the equipment renovation of tobacco leaf processing enterprises, there is an urgent need for an online density detection device for finished tobacco leaves after threshing and redrying. Figure 1As shown, the online packing density detection device for finished tobacco strips after leaf threshing and redrying is installed on the main pressure head of the baler. The bottom surface size of the pressure head is 980mm×550mm. The packing density detection device includes a mounting seat 2 and a pressure sensor 3. The mounting seat 2 is fixed to the bottom end of the main pressure head, and the pressure sensor 3 is fixed to the bottom surface of the mounting seat 2. There are multiple pressure sensors 3, which are evenly distributed on the bottom surface of the mounting seat 2. The packing density detection device has the function of transmitting and receiving information. The entire packing density detection device has a pressure resistance of 2 tons and a dustproof function. According to the dustproof and pressure resistance requirements, a sealing protective cover 1 is also designed. The sealing protective cover 1 is connected to the upper end of the mounting seat, wrapping the joint between the main pressure head and the mounting seat, so that a sealed space is formed inside the mounting seat 2 to protect the electronic components inside the mounting seat 2.

[0021] The main pressure head of the baling machine pre-presses and packs the cigarette blanks in the cigarette box. While pressing down, the pressure sensors on the detection device detect the pressure values ​​at the corresponding positions. The density distribution of the cigarette packs is detected according to the size of each pressure value, thereby providing data support for improving the uniformity of packing density.

[0022] In a preferred embodiment, there are 9 pressure sensors 3 on the bottom surface, which are evenly distributed horizontally and vertically, that is, 3 are evenly distributed in each row and 3 are evenly distributed in each column.

[0023] The calculation method of the density deviation DVR in the box after pressure detection is as follows:

[0024] There are 9 pressure sensors, and the measured pressure values ​​of 9 points in the box are: SP1, SP2, SP3, SP4, SP5, SP6, SP7, SP8, and SP9.

[0025] 1. Use SP1~SP9 to calculate the DVR of the cigarette in the box as shown in the following formula:

[0026]

[0027] Where: Pb: standard deviation pressure value, unit is Kg;

[0028] SP: The average pressure value of 9 points, in kg.

[0029] 2. The calculation formula of standard deviation pressure value Pb is as follows:

[0030]

[0031] 3. The calculation formula of average pressure value SP is as follows:

[0032]

[0033] Determination: Refer to tobacco industry standards YC / T147 and YC / T236, box density deviation (DVR) determination rules. DVR ≤ 10 complies with industry standards.

[0034] It is understandable that the calculation of the density deviation DVR in the box after pressure detection can be done manually, or an electronic calculation module can be built into the online density detection device to directly display the calculation result, or the pressure value can be input into a controller or computer to complete the calculation.

[0035] The calculated density deviation DVR in the box is used as the basis for adjusting the feeding and distributing mechanism of the baler. Figure 2 , Figure 3 The feeding and distributing mechanism is used to spread the materials evenly during feeding, and is composed of a finger distributing plate 200, a distributing roller 100, a distributing plate 400 at the hopper of a reciprocating feeder, a mobile electric cylinder 300, and a swing cylinder 500. The adjustment objects can be the finger distributing plate 200, the distributing roller 100, and the swing cylinder 500, to adjust the falling state of the materials and adjust the uniformity of the incoming materials, thereby improving the uniformity of the packing density.

[0036] The above are only preferred embodiments of the present invention, which are only illustrative and not restrictive. The structures and connection modes of the components in the present invention can be changed, and any equivalent transformations and improvements based on the technical solution of the present invention should not be excluded from the protection scope of the present invention.

Claims

1. An online packing density detection device for finished tobacco strips after threshing and redrying, characterized in that: Installed on the main pressure head of the baling machine, the density detection device comprises a mounting seat (2) and a pressure sensor (3); The mounting seat (2) is fixed to the bottom end of the main pressure head, and the pressure sensor (3) is fixed to the bottom surface of the mounting seat (2). There are multiple pressure sensors (3) that are evenly distributed on the bottom surface of the mounting seat (2).

2. The on-line packing density detection device for finished tobacco strips after threshing and redrying as claimed in claim 1, characterized in that: It also comprises a sealing protection cover (1), wherein the sealing protection cover (1) is connected to the upper end of the mounting seat (2) and wraps the joint between the main pressure head and the mounting seat (2).

3. The on-line packing density detection device for finished tobacco strips after threshing and redrying as claimed in claim 2, characterized in that: The density detection device can withstand a pressure of 2 tons.

4. The on-line packing density detection device for finished tobacco strips after threshing and redrying according to any one of claims 1 to 3, characterized in that: There are 9 pressure sensors (3), with 3 sensors distributed evenly in each row and 3 sensors distributed evenly in each column.

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