Thick slurry material output device

Abstract

The present invention belongs to the technical field of tobacco sheet preparation, and discloses a thick slurry material output device, including an extrusion component, a rolling component and a conveying component. The extrusion component includes a mixing box, a pusher and a discharge die. The discharge die is provided with a discharge hole, and the discharge hole includes a circular discharge hole and a spiral discharge hole. The spiral discharge hole is spirally arranged outside the circular discharge hole, and the spiral center axis of the spiral discharge hole coincides with the center axis of the circular discharge hole. After the thick slurry material is extruded through the discharge hole, it forms a combination structure of cylindrical material and spiral material. The rolling component is used to roll the thick slurry material forming the combined structure and roll it into a thin sheet of a predetermined thickness. The conveying component is used to receive the thin sheet and output it. In the present invention, the spiral material extruded through the discharge hole changes the stretching direction of the plant fiber, effectively improves the tensile strength of the formed thin sheet, and reduces the difference between the longitudinal tensile strength and the transverse tensile strength of the thin sheet.

Description

Technical Field

[0001] The present invention relates to the technical field of tobacco sheet preparation, in particular to a thick slurry material output device. Background Art

[0002] The main technologies for preparing tobacco flakes include roller pressing, thick slurry method and papermaking method. The roller pressing method is to prepare tobacco flakes by crushing tobacco materials such as tobacco stems, tobacco dust, and stem sticks, and then mixing them with plant fibers, adhesives, atomizers, water and other materials in a certain proportion and stirring them evenly to form granules. The granules are then rolled through a roller press to form sheets and dried. The roller pressing method is used to prepare tobacco flakes. Due to the high content of tobacco components in the material and the low moisture content of the dry and wet mixed raw materials, the temperature and time during the drying process of the material after rolling are low, and the drying loss of the flavor components in the material is small. Therefore, the tobacco flakes prepared by the roller pressing method have the advantage of being rich in tobacco flavor and are widely used in the tobacco industry.

[0003] The traditional roller-pressing method for preparing tobacco flakes involves uniformly mixing the thick slurry material, then subjecting it to multiple stages of roller pressing and drying to finalize the desired shape. However, due to the low moisture content of the wet-dry mixture during the roller-pressing process, the fiber distribution is poor, resulting in low tensile strength, which in turn affects the subsequent processing and use of the flakes. Furthermore, due to the influence of the preparation process, when the thick slurry material passes through the roller-pressing process, the fibers in the wet film after rolling primarily stretch longitudinally due to the resistance of the rollers. The longitudinal tensile strength is significantly greater than the transverse tensile strength, resulting in several-fold differences in test results. Summary of the Invention

[0004] The object of the present invention is to provide a thick slurry material output device, which effectively improves the tensile strength of the formed slices, reduces the difference between the longitudinal tensile strength and the transverse tensile strength of the slices, and improves the application effect of the slices.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] The thick slurry material output device comprises:

[0007] An extrusion assembly, comprising a mixing box, a pusher and a discharge die, wherein the mixing box has a material inlet and a material outlet, the discharge die is fixedly arranged at the material outlet, and the discharge die is provided with a discharge hole, the discharge hole includes a circular discharge hole and a spiral discharge hole, and the spiral discharge hole is spirally arranged outside the circular discharge hole, and the spiral center axis of the spiral discharge hole coincides with the center axis of the circular discharge hole, the pusher is arranged in the mixing box, and the pusher is configured to extrude the material in the mixing box through the circular discharge hole and the spiral discharge hole;

[0008] a rolling assembly, disposed downstream of the extrusion assembly, and configured to roll the material extruded from the discharge hole into a predetermined thickness;

[0009] The conveying assembly is arranged downstream of the rolling assembly, and the conveying assembly is used to output the material of predetermined thickness.

[0010] As an optional solution, there are multiple discharge holes, and the multiple discharge holes are divided into multiple layers. Each layer of discharge holes contains multiple discharge holes arranged in sequence. In any two adjacent layers of discharge holes, the multiple circular discharge holes in one layer are staggered with the multiple circular discharge holes in the other layer.

[0011] As an optional solution, in any layer of the discharge holes, the spiral discharge holes include a first spiral discharge hole and a second spiral discharge hole, and the first spiral discharge hole and the second spiral discharge hole are alternately distributed.

[0012] As an optional scheme, in each layer of the discharge holes, the difference between the spiral starting angle of the first spiral discharge hole and the spiral starting angle of the second spiral discharge hole is a first set angle, and in any two adjacent layers of the discharge holes, the difference between the spiral starting angle of the first spiral discharge hole in one layer of the discharge holes and the spiral starting angle of the first spiral discharge hole in the other layer of the discharge holes is a second set angle.

[0013] As an optional solution, the distance H between any two adjacent circular discharge holes in each layer of the discharge holes is smaller than the radius of the circular discharge holes.

[0014] As an optional solution, the mixing box has an extrusion part and a buffer part that are interconnected, the material inlet is arranged on the extrusion part, the pushing piece is arranged in the extrusion part, the material outlet is arranged in the buffer part, and the buffer part is arranged at an angle A with the extrusion part.

[0015] As an optional solution, the angle A is 90°-180°.

[0016] As an optional solution, the rolling assembly includes a pre-pressing part, a limiting part and a forming part arranged in sequence, the pre-pressing part and the limiting part are configured to pre-press the material output from the discharge mold into a flat shape, and the forming part is configured to output the material of a predetermined thickness.

[0017] As an optional scheme, the pre-pressing member includes pre-pressing rollers and a supporting conveyor belt distributed up and down, there is a first gap between the pre-pressing rollers and the supporting conveyor belt, the support conveyor belt is used to convey the material, the pre-pressing rollers can rotate to roll the material, the limiting member includes an upper limit plate and a lower limit plate distributed up and down, there is a second gap between the upper limit plate and the lower limit plate, the second gap is smaller than the first gap, and the second gap gradually decreases along the conveying direction of the material; the forming member includes at least one group of first rollers and second rollers distributed up and down, there is a third gap between the first roller and the second roller, and the first roller and the second roller can rotate towards each other, and the third gap is smaller than the second gap.

[0018] As an optional solution, a dryer is further included, and the conveying component is arranged through a drying channel of the dryer.

[0019] Beneficial effects of the present invention:

[0020] The present invention provides a thick slurry material output device, which is provided with a discharge hole on the discharge mold, and the discharge hole includes a circular discharge hole and a spiral discharge hole. The spiral discharge hole is spirally arranged outside the circular discharge hole, and the spiral center axis of the spiral discharge hole coincides with the center axis of the circular discharge hole, so that the material forms a combination structure of cylindrical material and spiral material after extrusion, that is, the spiral material is spirally wound around the outer surface of the cylindrical material. Compared with the traditional material extrusion method, the spiral material changes the stretching direction of the plant fiber, effectively improves the tensile strength of the formed sheet, reduces the difference between the longitudinal tensile strength and the transverse tensile strength of the sheet, and improves the application effect of the sheet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 2 is a schematic structural diagram of a thick slurry material output device provided by an embodiment of the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the discharge mold involved in the embodiment of the present invention. Figure 1 ;

[0023] Figure 3 This is a schematic diagram of the structure of the discharge mold involved in the embodiment of the present invention. Figure 2 ;

[0024] Figure 4 Schematic diagram of the structure of the pusher involved in the embodiment of the present invention;

[0025] Figure 5 It is a schematic diagram of the composite structure material extruded through the discharge die.

[0026] In the picture:

[0027] 1. Extrusion assembly; 11. Mixing box; 111. Extrusion unit; 1111. Material inlet; 112. Buffer unit; 12. Pusher; 121. Screw; 13. Discharge die; 131. Circular discharge hole; 132. Spiral discharge hole; 1321. First spiral discharge hole; 1322. Second spiral discharge hole;

[0028] 2. Roller assembly; 21. Pre-pressing roller; 22. Support conveyor belt; 23. Upper limit plate; 24. Lower limit plate; 25. First roller; 26. Second roller; 27. First scraper; 28. Second scraper;

[0029] 3. Conveying assembly; 31. Output conveyor belt; 32. Third scraper; 33. Output roller;

[0030] 4. Dryer;

[0031] 100, cylindrical materials; 200, spiral materials. DETAILED DESCRIPTION

[0032] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar components or components having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, but are not to be construed as limiting the present invention.

[0033] In the description of the present invention, unless otherwise expressly specified or limited, the terms "connected," "connected," and "fixed" should be understood in a broad sense. For example, they may refer to fixed or detachable connections, mechanical or electrical connections, direct or indirect connections through an intermediate medium, and internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0034] In the description of the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first feature being in direct contact with the second feature, or may include the first feature being in contact with the second feature through another feature between them instead of being in direct contact. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0036] like Figure 1-Figure 4 As shown, an embodiment of the present invention provides a thick slurry material output device, which includes an extrusion component 1, a roller pressing component 2 and a conveying component 3, wherein the extrusion component 1 includes a mixing box 11, a pusher 12 and a discharge mold 13, the mixing box 11 has a material inlet 1111 and a material outlet, the pusher 12 is arranged in the mixing box 11, the discharge mold 13 is fixedly arranged at the material outlet, and the discharge mold 13 is provided with a discharge hole, the discharge hole includes a circular discharge hole 131 and a spiral discharge hole 132, the spiral discharge The hole 132 is spirally arranged outside the circular discharge hole 131, and the spiral center axis of the spiral discharge hole 132 coincides with the center axis of the circular discharge hole 131; the thick slurry material can enter through the material inlet 1111, and the pusher 12 simultaneously outputs the thick slurry material through the circular discharge hole 131 and the spiral discharge hole 132, so that the thick slurry material forms a combined structure of the cylindrical material 100 and the spiral material 200 after extrusion, that is, the spiral material 200 is spirally wound around the outer surface of the cylindrical material 100, refer to Figure 5 ; The rolling assembly 2 is arranged downstream of the extrusion assembly 1, and the rolling assembly 2 is used to roll the thick slurry material that constitutes the combined structure and roll it into a thin sheet of a predetermined thickness; the conveying assembly 3 is arranged downstream of the rolling assembly 2, and the conveying assembly 3 is used to receive the thin sheet and output it.

[0037] Compared with the traditional material extrusion method, the thick slurry material output device provided by the present invention changes the stretching direction of the plant fiber in the spiral material 200, effectively improves the tensile strength of the formed sheet, reduces the difference between the longitudinal tensile strength and the transverse tensile strength of the sheet, and improves the use effect of the sheet.

[0038] Optionally, there are multiple discharge holes, which are divided into multiple layers, and each layer of discharge holes contains multiple discharge holes arranged in sequence. In any two adjacent layers of discharge holes, the multiple circular discharge holes 131 in one layer of discharge holes are staggered with the multiple circular discharge holes 131 in the other layer of discharge holes. This structure allows the thick slurry material extruded through the discharge holes to be staggered and stacked in an orderly manner. Figure 2 There are two layers of discharge holes, the number of discharge holes in the upper layer is one less than the number of discharge holes in the lower layer, and the center of any circular discharge hole 131 in the upper layer is located on the midline of the two circular discharge holes 131 in the lower layer adjacent to it.

[0039] Optionally, in any layer of discharge holes, the spiral discharge holes 132 include a first spiral discharge hole 1321 and a second spiral discharge hole 1322, and the first spiral discharge hole 1321 and the second spiral discharge hole 1322 are alternately distributed, that is, in any layer of discharge holes, the spiral starting angle of the first spiral discharge hole 1321 and the spiral starting angle of the second spiral discharge hole 1322 are different. This structure allows the spiral material 200 to be staggered between the materials of two adjacent combined structures when it is spirally wound around the cylindrical material 100 for output, that is, the spiral gap of the spiral material 200 is staggered.

[0040] Furthermore, in each layer of discharge holes, the difference between the spiral starting angle of the first spiral discharge hole 1321 and the spiral starting angle of the second spiral discharge hole 1322 is the first set angle, and in any two adjacent layers of discharge holes, the difference between the spiral starting angle of the first spiral discharge hole 1321 in one layer of discharge holes and the spiral starting angle of the first spiral discharge hole 1321 in the other layer of discharge holes is the second set angle. For example, referring to Figure 3 The spiral starting angle of the first spiral discharge hole 1321 in the lower discharge hole is 15°, the spiral starting angle of the second spiral discharge hole 1322 in the lower discharge hole is 40°, and the difference between the spiral starting angle of the first spiral discharge hole 1321 and the spiral starting angle of the second spiral discharge hole 1322 in the lower discharge hole is 40°-15°=25°, that is, the first set angle is 25°; the spiral starting angle of the first spiral discharge hole 1321 in the upper discharge hole is 65°, the spiral starting angle of the second spiral discharge hole 1322 in the upper discharge hole is 90°, and the difference between the spiral starting angle of the first spiral discharge hole 1321 and the spiral starting angle of the second spiral discharge hole 1322 in the upper discharge hole is 40°-15°=25°, that is, the first set angle is 25°. The difference between the spiral starting angle of the first spiral discharge hole 1321 and the spiral starting angle of the second spiral discharge hole 1322 in the material hole is 90°-65°=25°, that is, the first set angle is 25°; the difference between the spiral starting angle of the first spiral discharge hole 1321 in the upper layer discharge hole and the spiral starting angle of the first spiral discharge hole 1321 in the lower layer discharge hole is 65°-15°=50°, that is, the second set angle is 50°. The above setting of the spiral starting angle is an example and can be set according to the pitch, spiral direction, and cross-sectional dimensions of the spiral discharge hole 132. This structure can ensure that the thick slurry material extruded from the discharge holes in different layers is in an orderly staggered stacked state.

[0041] Optionally, the cross section of the spiral discharge hole 132 may be configured to be rectangular, triangular, or circular.

[0042] Preferably, along the conveying direction of the thick slurry material, the cross-sectional size of the spiral discharge hole 132 gradually decreases to increase the pressure during the conveying of the thick slurry material and improve the forming effect of the spiral material 200 .

[0043] Optionally, the distance H between any two adjacent circular discharge holes 131 in each layer of discharge holes should be as small as possible to ensure that the combined structure of the extruded thick slurry material can form a transversely continuous sheet after being pressed by the pre-pressing roller 21. Preferably, the distance H between any two adjacent circular discharge holes 131 is smaller than the radius of the circular discharge hole 131.

[0044] Optionally, continue with reference to Figure 1 Combined with Figure 4 The mixing box 11 has an extrusion part 111 and a buffer part 112 which are interconnected. The material inlet 1111 is arranged on the extrusion part 111. The pushing piece 12 includes a plurality of screws 121. The plurality of screws 121 are arranged to rotate side by side in the extrusion part 111. The plurality of screws 121 can rotate to push the thick slurry material to the buffer part 112. The material outlet is arranged in the buffer part 112, and the buffer part 112 and the extrusion part 111 are arranged at an angle A. This structural arrangement enables the thick slurry material to gather in the buffer part 112 when being transported by the pushing piece 12, and to form a certain pressure in the buffer part 112 so that it can pass through the discharge hole smoothly.

[0045] Furthermore, along the conveying direction of the thick slurry material, the cross-sectional size of the buffer portion 112 gradually decreases to further increase the pressure.

[0046] Optionally, the angle A between the buffer portion 112 and the extrusion portion 111 is 90° to 180° to ensure that a certain pressure can be generated and the material can pass through the discharge hole smoothly. More preferably, A is 135°.

[0047] Reference Figure 1 Optionally, the rolling assembly 2 includes a pre-pressing part, a limiting part and a forming part arranged in sequence. The thick slurry material is output through the discharge hole to form a material of a combined structure. The material of the combined structure is first pre-pressed by the pre-pressing part, and then further pre-pressed into a flat shape by the limiting part. Finally, the thick slurry material of a predetermined thickness is output through the forming part. The thick slurry material is rolled into a thin sheet. This structure can pre-press the material of the combined structure into a flat shape before being output through the forming part, and pre-shape it to facilitate the output of the formed part.

[0048] Furthermore, the pre-pressing member includes a pre-pressing roller 21 and a supporting conveyor belt 22 distributed up and down, and there is a first gap between the supporting conveyor belt 22 and the pre-pressing roller 21. The material of the combined structure is supported on the supporting conveyor belt 22 after being output, and the supporting conveyor belt 22 can transport it. The pre-pressing roller 21 rotates and rolls it at the same time. The supporting conveyor belt 22 and the pre-pressing roller 21 provide power for the transportation of the material and pre-press it through the first gap; the limiting member includes an upper limit plate 23 and a lower limit plate 24 distributed up and down, and there is a second gap between the upper limit plate 23 and the lower limit plate 24. The second gap The gap is smaller than the first gap, and the second gap gradually decreases along the conveying direction of the material. It can be understood that the maximum size of the second gap is smaller than the first gap. After passing through the second gap, the material is pre-pressed into a flat shape to facilitate entering the molded part; the molded part includes at least one group of first rollers 25 and second rollers 26 distributed up and down, and there is a third gap between the first rollers 25 and the second rollers 26. The third gap is smaller than the second gap, that is, the third gap is smaller than the minimum size of the second gap. The first rollers 25 and the second rollers 26 can rotate towards each other to facilitate the output of the material, and can roll the material into thin sheets for output.

[0049] It can be understood that the molded part may include multiple sets of first rollers 25 and second rollers 26, and the multiple sets of first rollers 25 and second rollers 26 are arranged at intervals along the conveying direction of the material and can be set according to needs.

[0050] The molded part also includes a first scraper 27 and a second scraper 28 distributed up and down. The first scraper 27 is arranged downstream of the first roller 25, and the second scraper 28 is arranged downstream of the second roller 26. When the first roller 25 and the second roller 26 rotate and roll the material, the remaining material on the first roller 25 can be scraped off by the first scraper 27, and the remaining material on the second roller 26 can be scraped off by the second scraper 28 to ensure the rolling effect of the molded part.

[0051] The conveying assembly 3 includes an output conveyor belt 31, a third scraper 32 and an output roller 33. The output conveyor belt 31 is arranged downstream of the formed part, and the sheet is spread flat on the output conveyor belt 31 for conveying. The third scraper 32 is arranged downstream of the output conveyor belt 31 and is used to separate the sheet from the output conveyor belt 31. The output roller 33 is arranged downstream of the third scraper 32 and is used to output the separated sheet.

[0052] The thick slurry material output device further includes a dryer 4 , and an output conveyor belt 31 is provided through a drying channel of the dryer 4 . When the slices are transported via the output conveyor belt 31 , the dryer 4 can dry the slices.

[0053] In each material that constitutes the combined structure, the fiber direction of the cylindrical material 100 mainly extends along its axial direction, and the fiber direction of the spiral material 200 mainly extends along its spiral direction. The fiber direction of the cylindrical material 100 and the fiber direction of the spiral material 200 form an intersection in space, which effectively improves the tensile strength of the sheet. The transverse tensile strength of the sheet reaches 397N / m, and the longitudinal tensile strength of the sheet reaches 552N / m, reducing the difference between the longitudinal tensile strength and the transverse tensile strength. The transverse tensile strength of the sheet obtained by the traditional method is 173N / m, and the longitudinal tensile strength is 387N / m, which improves the use effect of the sheet compared with the traditional method.

[0054] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Thick slurry material output device, characterized in that: include: An extrusion assembly (1) comprises a mixing box (11), a pusher (12) and a discharge die (13), wherein the mixing box (11) has a material inlet (1111) and a material outlet, the discharge die (13) is fixedly arranged at the material outlet, and the discharge die (13) is provided with a discharge hole, the discharge hole comprises a circular discharge hole (131) and a spiral discharge hole (132), and the spiral discharge hole (132) is spirally arranged outside the circular discharge hole (131), and the spiral center axis of the spiral discharge hole (132) coincides with the center axis of the circular discharge hole (131), the pusher (12) is arranged in the mixing box (11), and the pusher (12) is configured to extrude the material in the mixing box (11) through the circular discharge hole (131) and the spiral discharge hole (132); A rolling assembly (2) is arranged downstream of the extrusion assembly (1), and the rolling assembly (2) is configured to roll the material extruded from the discharge hole into a predetermined thickness; A conveying assembly (3) is arranged downstream of the roller pressing assembly (2), and the conveying assembly (3) is used to output the material of a predetermined thickness; There are multiple discharge holes, and the multiple discharge holes are divided into multiple layers. Each layer of discharge holes contains multiple discharge holes arranged in sequence. In any two adjacent layers of discharge holes, the multiple circular discharge holes (131) in one layer of discharge holes are staggered with the multiple circular discharge holes (131) in the other layer of discharge holes.

2. The thick slurry material discharging device according to claim 1, characterized in that: In any layer of the discharge holes, the spiral discharge holes (132) include a first spiral discharge hole (1321) and a second spiral discharge hole (1322), and the first spiral discharge hole (1321) and the second spiral discharge hole (1322) are distributed in an alternating manner.

3. The thick slurry material output device according to claim 2, characterized in that: In each layer of the discharge holes, the difference between the spiral starting angle of the first spiral discharge hole (1321) and the spiral starting angle of the second spiral discharge hole (1322) is the first set angle, and in any two adjacent layers of the discharge holes, the difference between the spiral starting angle of the first spiral discharge hole (1321) in one layer of the discharge holes and the spiral starting angle of the first spiral discharge hole (1321) in the other layer of the discharge holes is the second set angle.

4. The thick slurry material discharging device according to claim 1, characterized in that: The distance H between any two adjacent circular discharge holes (131) in each layer of the discharge holes is smaller than the radius of the circular discharge holes (131).

5. The thick slurry material discharging device according to claim 1, characterized in that: The mixing box (11) comprises an extrusion portion (111) and a buffer portion (112) which are interconnected, the material inlet (1111) being arranged on the extrusion portion (111), the material pusher (12) being arranged in the extrusion portion (111), the material outlet being arranged in the buffer portion (112), and the buffer portion (112) and the extrusion portion (111) being arranged at an angle A.

6. The thick slurry material discharging device according to claim 5, characterized in that: The angle A is 90°-180°.

7. The thick slurry material discharging device according to claim 1, characterized in that: The roller pressing assembly (2) comprises a pre-pressing member, a limiting member and a forming member arranged in sequence, the pre-pressing member and the limiting member being configured to pre-press the material output from the discharge die (13) into a flat shape, and the forming member being configured to output the material with a predetermined thickness.

8. The thick slurry material discharging device according to claim 7, characterized in that: The pre-pressing member includes a pre-pressing roller (21) and a supporting conveyor belt (22) distributed up and down, a first gap is provided between the pre-pressing roller (21) and the supporting conveyor belt (22), the supporting conveyor belt (22) is used to convey the material, the pre-pressing roller (21) can rotate to roll the material, the limiting member includes an upper limit plate (23) and a lower limit plate (24) distributed up and down, a second gap is provided between the upper limit plate (23) and the lower limit plate (24), the second gap is smaller than the first gap, and the second gap gradually decreases along the conveying direction of the material; the forming member includes at least one group of first rollers (25) and second rollers (26) distributed up and down, a third gap is provided between the first rollers (25) and the second rollers (26), the first rollers (25) and the second rollers (26) can rotate towards each other, and the third gap is smaller than the second gap.

9. The thick slurry material discharging device according to claim 1, characterized in that: It also includes a dryer (4), and the conveying assembly (3) is arranged through a drying channel of the dryer (4).

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