Thick slurry method sheet conveying system and sheet drying forming line

Abstract

The utility model belongs to the technical field of sheet production, and discloses a thick slurry method sheet conveying system and a sheet drying forming line. The thick slurry method sheet conveying system comprises a first conveying mechanism, a conveying belt assembly, a second conveying mechanism and a control mechanism. The first conveying mechanism comprises a first conveying shaft and a sensing assembly, the first conveying shaft is used for conveying the sheets conveyed out by the first baking forming machine, and the sensing assembly is used for sensing the sheets passing through the first conveying shaft; the conveyor belt assembly is used for conveying the sheets conveyed by the first conveying mechanism; the second conveying mechanism comprises a second conveying shaft, and the second conveying shaft is used for conveying the sheets conveyed out by the conveying belt assembly and conveying the sheets to the second baking forming machine; the control mechanism is in communication connection with the sensing assembly, the speed detection piece, the conveying belt assembly and the second conveying shaft and used for controlling the linear speed of the conveying belt assembly and the second conveying shaft. According to the thick slurry method sheet conveying system, the production efficiency and the production quality of sheets are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of thin sheet production, in particular to a thick pulp method thin sheet conveying system and a thin sheet drying and forming line. Background Technique

[0002] The preparation methods of reconstituted tobacco leaves include the thick pulp method, the roll pressing method, the papermaking method and the dry method. Among them, the thick pulp method reconstituted tobacco leaves are obtained by casting a tobacco pulp containing tobacco powder on a circular steel belt, followed by primary baking, peeling, secondary baking, winding or cutting. The baking section is the key process section that determines the forming of the thin sheet. The main processes include casting and spreading pulp, online powder scattering, primary baking, roll pressing, secondary baking, and cooling and winding.

[0003] The thin sheet is conveyed out by the first baking and forming machine and transported to the second baking and forming machine through the first conveying mechanism, the conveyor belt assembly and the second conveying mechanism. The first conveying mechanism, the conveyor belt assembly and the second conveying mechanism exist independently, and each power operation mechanism has no linkage. The thin sheet is a whole film with limited tensile strength. When the speed matching of the first conveying mechanism, the conveyor belt assembly and the second conveying mechanism is unreasonable, the thin sheet is prone to accumulation or pulling and breaking. When the speed of the rear section is greater than that of the front section, the thin sheet will be tightened and broken; when the speed of the rear section is less than that of the front section, the thin sheet will be accumulated. When manually adjusting the speed, due to the different motor models and output transmission mechanisms of several modules, affected by mechanical transmission and friction coefficient, it is impossible for manual workers to adjust the linear speeds of each mechanism to be exactly the same. Because there is no synchronous connection, as long as there is a speed difference, over time, the conveying state of the thin sheet will become loose or tense, and the thin sheet will accumulate or break at the outlet of the primary baking steel belt, and the operator needs to pay attention to monitoring at all times. If the thin sheet breaks during production and does not reach the length for cutting into strips (about 300 meters), normal production cannot be carried out, resulting in waste. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a thick pulp method thin sheet conveying system and a thin sheet drying and forming line, so that during the process of conveying the thin sheet, the linear speeds of the first conveying mechanism, the conveyor belt assembly and the second conveying mechanism are kept consistent, avoiding the accumulation or breakage of the thin sheet, and improving the production efficiency and production quality of the thin sheet.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] On the one hand, a thick pulp method thin sheet conveying system is provided, which is arranged between the first baking and forming machine and the second baking and forming machine and is used for conveying the thin sheet. The thick pulp method thin sheet conveying system includes:

[0007] The first conveying mechanism includes a first conveying shaft and an induction assembly. The first conveying shaft is used to convey the thin sheet conveyed out by the first baking and forming machine. A speed detection member is connected to the first conveying shaft. The induction assembly includes a sensor, and the sensor is used to sense the thin sheet passing through the first conveying shaft.

[0008] The conveyor belt assembly is used to convey the thin sheet conveyed out by the first conveying mechanism.

[0009] The second conveying mechanism includes a second conveying shaft. The second conveying shaft is used to convey the thin sheet conveyed out by the conveyor belt assembly and convey the thin sheet to the second baking and forming machine.

[0010] The control mechanism is communicatively connected to the induction assembly, the speed detection member, the conveyor belt assembly, and the second conveying shaft. The control mechanism is used to control the linear speeds of the conveyor belt assembly and the second conveying shaft and make the linear speeds of the conveyor belt assembly and the second conveying shaft consistent with the linear speed of the first conveying shaft.

[0011] Preferably, the first conveying mechanism further includes a first fixing seat. The first conveying shaft is rotatably arranged on the first fixing seat, and the induction assembly is vertically movable on the first fixing seat.

[0012] Preferably, the induction assembly further includes a mounting member. The sensor is vertically movable on the first fixing seat through the mounting member.

[0013] Preferably, the induction assembly further includes an induction driving member. The output end of the induction driving member is connected to the mounting member to drive the mounting member to drive the sensor to move up and down.

[0014] Preferably, a slide rail is further arranged in the first fixing seat. A slider is slidably arranged on the slide rail, and the mounting member is connected to the slider.

[0015] Preferably, the conveyor belt assembly includes a belt and a conveying driving device. The output end of the conveying driving device is connected to the belt to drive the belt to operate.

[0016] Preferably, a first bearing member is arranged on the first conveying shaft. The first bearing member is used to support and convey the thin sheet conveyed out by the first baking and forming machine.

[0017] Preferably, a second bearing member is arranged on the second conveying shaft. The second bearing member is used to support and convey the thin sheet conveyed out by the conveyor belt assembly and convey the thin sheet to the second baking and forming machine.

[0018] Preferably, the second conveying mechanism further includes a second fixed seat, and the second conveying shaft is rotatably arranged on the second fixed seat.

[0019] On the other hand, a thin sheet drying and forming line is provided, which includes a first baking and forming machine, a second baking and forming machine, a thin sheet winding machine, and a thick slurry method thin sheet conveying system as described in any one of the above. The first baking and forming machine, the thick slurry method thin sheet conveying system, the second baking and forming machine, and the thin sheet winding machine are connected in sequence.

[0020] The beneficial effects of the present invention:

[0021] A thick slurry method thin sheet conveying system provided by the present invention includes a first conveying mechanism, a conveyor belt assembly, a second conveying mechanism, and a control mechanism. The first conveying mechanism includes a first conveying shaft and a sensing assembly, and the sensing assembly is used to sense the thin sheet passing through the first conveying shaft; the control mechanism is used to control the linear speeds of the conveyor belt assembly and the second conveying shaft, and make the linear speeds of the conveyor belt assembly and the second conveying shaft consistent with the linear speed of the first conveying shaft. To prevent misjudgment and adjustment due to thin sheet jitter, when the sensor continuously senses the running thin sheet for 2 seconds, it indicates that the thin sheet is in a tensioned state at this time, and the running speeds of the conveyor belt assembly and the second conveying mechanism are too fast. At this time, the control mechanism controls the linear speeds of the conveyor belt assembly and the second conveying mechanism to decrease to be the same as the linear speed of the first conveying shaft, so as to prevent the thin sheet from being tensioned and broken. When the sensing assembly continuously fails to sense the running thin sheet for 0.5 seconds, it indicates that the thin sheet has become loose. The control mechanism will adjust the running speeds of the conveyor belt assembly and the second conveying shaft according to the real-time speed of the first conveying shaft detected by the speed detection component at this time, and the thin sheet will be tightened again at this time, so as to prevent the phenomenon that the thin sheet accumulates and cannot enter the next process. The setting of the sensing assembly and the control mechanism enables the linear speeds of the first conveying mechanism, the conveyor belt assembly, and the second conveying mechanism to be kept consistent, avoiding the accumulation or breakage of the thin sheet, and improving the production efficiency and production quality of the thin sheet. Description of the Drawings

[0022] Figure 1 is a schematic structural diagram of the thin sheet drying and forming line provided by the embodiment of the present invention;

[0023] Figure 2 is a schematic structural diagram of the thick slurry method thin sheet conveying system provided by the embodiment of the present invention;

[0024] Figure 3 is Figure 2 a partial enlarged view of part A in

[0025] Figure 4 is Figure 2 a partial enlarged view of part B in

[0026] In the figure:

[0027] 1. First conveying mechanism; 11. First conveying shaft; 12. Induction component; 121. Sensor; 122. Mounting part; 13. First fixing seat; 14. First bearing part; 15. First deviation rectifying device; 16. Stripping knife component;

[0028] 2. Second conveying mechanism; 21. Second conveying shaft; 22. Second bearing part; 23. Second fixing seat;

[0029] 3. Conveyor belt component; 31. Belt; 32. Conveying driving device; 33. Second deviation rectifying device;

[0030] 100. First baking and forming machine; 200. Second baking and forming machine; 300. Thin sheet rewinder. Specific embodiments

[0031] The following further describes the present utility model in detail with reference to the drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present utility model, rather than limiting the present utility model. Additionally, it should be noted that for the convenience of description, only the parts related to the present utility model rather than all the structures are shown in the drawings.

[0032] In the description of the present utility model, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0033] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features between them. Moreover, the first feature being "above", "over", and "on" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is lower than that of the second feature.

[0034] In the description of this embodiment, the orientation or positional relationships such as "upper", "lower", "right", etc. are based on the orientation or positional relationships shown in the drawings. They are only for the convenience of description and simplifying the operations, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0035] As Figures 1 to 4 shown, this embodiment provides a thick slurry method thin sheet conveying system, which is arranged between the first baking and forming machine 100 and the second baking and forming machine 200 and is used for conveying thin sheets. In some embodiments, the thick slurry method thin sheet conveying system includes a first conveying mechanism 1, a conveyor belt assembly 3, a second conveying mechanism 2 and a control mechanism. The first conveying mechanism 1 includes a first conveying shaft 11 and an induction assembly 12. The first conveying shaft 11 is used for conveying the thin sheets conveyed out by the first baking and forming machine 100. A speed detection component is connected to the first conveying shaft 11. The induction assembly 12 includes a sensor 121, and the sensor 121 is used for sensing the thin sheets passing through the first conveying shaft 11. The conveyor belt assembly 3 is used for conveying the thin sheets conveyed out by the first conveying mechanism 1. The second conveying mechanism 2 includes a second conveying shaft 21, and the second conveying shaft 21 is used for conveying the thin sheets conveyed out by the conveyor belt assembly 3 and conveying the thin sheets to the second baking and forming machine 200. The control mechanism is in communication connection with the induction assembly 12, the speed detection component, the conveyor belt assembly 3 and the second conveying shaft 21. The control mechanism is used for controlling the linear speeds of the conveyor belt assembly 3 and the second conveying shaft 21 and making the linear speeds of the conveyor belt assembly 3 and the second conveying shaft 21 consistent with the linear speed of the first conveying shaft 11.

[0036] In this embodiment, the sensor 121 is a photoelectric sensor. The photoelectric sensor is located on one side of the thin sheet and is adapted to the height when the thin sheet is tensioned. When the light emitted by the photoelectric sensor can irradiate the thin sheet, it indicates that the thin sheet is in a tensioned state at this time. When the light emitted by the photoelectric sensor cannot irradiate the thin sheet, it indicates that the thin sheet has become slack. To prevent misjudgment and adjustment caused by the vibration of the thin sheet, when the sensor 121 continuously senses the running thin sheet for 2 seconds, it indicates that the thin sheet is in a tensioned state at this time, and the running speeds of the conveyor belt assembly 3 and the second conveying mechanism 2 are too fast. At this time, the control mechanism controls the linear speeds of the conveyor belt assembly 3 and the second conveying mechanism 2 to be reduced to the same as the linear speed of the first transmission shaft 11, thereby preventing the thin sheet from being tensioned and broken. When the sensing assembly 12 continuously fails to sense the running thin sheet for 0.5 seconds, it indicates that the thin sheet has become slack. The control mechanism will then adjust the running speeds of the conveyor belt assembly 3 and the second transmission shaft 21 according to the real-time speed of the first transmission shaft 11 detected by the speed detection member. At this time, the thin sheet will be tightened again, thereby preventing the phenomenon that the thin sheet accumulates and cannot enter the next process. The setting of the sensing assembly 12 and the control mechanism enables the linear speeds of the first conveying mechanism 1, the conveyor belt assembly 3, and the second conveying mechanism 2 to be consistent, avoiding the accumulation or breakage of the thin sheet, and improving the production efficiency and production quality of the thin sheet.

[0037] To facilitate the setting of the first transmission shaft 11, the first conveying mechanism 1 further includes a first fixing seat 13. The first transmission shaft 11 is rotatably arranged on the first fixing seat 13, and the sensing assembly 12 is arranged on the first fixing seat 13 in a liftable manner. The liftable setting of the sensing assembly 12 enables the sensing assembly 12 to set a corresponding height according to thin sheets with different material properties, making the applicable range of the thick slurry method thin sheet conveying system wider.

[0038] Specifically, the sensing assembly 12 further includes a mounting member 122. The sensor 121 is arranged on the first fixing seat 13 in a liftable manner through the mounting member 122. Further, to realize the automation of the lifting of the sensing assembly 12, the sensing assembly 12 further includes a sensing driving member. The output end of the sensing driving member is connected to the mounting member 122 to drive the mounting member 122 to drive the sensor 121 to lift. In some embodiments, the sensing driving member can be a cylinder. The output end of the cylinder is connected to the mounting member 122, and the telescopic rod of the cylinder expands and contracts to drive the mounting member 122 to lift, thereby driving the sensor 121 to lift.

[0039] To enable the sensing assembly 12 to move more stably during lifting, a slide rail is further arranged in the first fixing seat 13. A slider is slidably arranged on the slide rail, and the mounting member 122 is connected to the slider.

[0040] To realize the automation of the operation of the conveying assembly, the conveyor belt assembly 3 includes a belt 31 and a conveying driving device 32. The output end of the conveying driving device 32 is connected to the belt 31 for driving the belt 31 to operate.

[0041] Preferably, a first carrier 14 is provided on the first transmission shaft 11. The first carrier 14 is used to support and convey the thin sheet conveyed out by the first baking and forming machine 100. The arrangement of the first carrier 14 enables the thin sheet conveyed out by the first baking and forming machine 100 to move on the first carrier 14, avoiding damage to the thin sheet during the conveying process.

[0042] Preferably, a second carrier 22 is provided on the second transmission shaft 21. The second carrier 22 is used to support and convey the thin sheet conveyed out by the conveyor belt assembly 3 and convey the thin sheet to the second baking and forming machine 200. The arrangement of the second carrier 22 enables the thin sheet conveyed out by the conveyor belt assembly 3 to move on the second carrier 22, further avoiding damage to the thin sheet during the conveying process.

[0043] To facilitate the setting of the second transmission shaft 21, the second transmission mechanism 2 further includes a second fixed seat 23, and the second transmission shaft 21 is rotatably arranged in the second fixed seat 23.

[0044] Preferably, the thick slurry method thin sheet conveying system further includes a first deviation rectifying device 15. The first deviation rectifying device 15 is arranged at the upstream position of the first transmission mechanism 1. The first deviation rectifying device 15 includes a first deviation rectifying roller assembly. The thin sheet conveyed out by the first baking and forming machine 100 is transported to the conveyor belt assembly 3 through the first deviation rectifying roller assembly. The first deviation rectifying device 15 plays a role in preventing the thin sheet conveyed out by the first baking and forming machine 100 from deviating during the transportation process, thereby improving the production quality of the thin sheet. The deviation rectifying device belongs to the prior art and will not be elaborated here.

[0045] Preferably, the thick slurry method thin sheet conveying system further includes a second deviation rectifying device 33. The second deviation rectifying device 33 is arranged at the upstream position of the second transmission mechanism 2. The second deviation rectifying device includes a second deviation rectifying roller assembly. The thin sheet conveyed out by the conveyor belt assembly 3 is conveyed to the second transmission mechanism 2 through the first deviation rectifying roller assembly. The second deviation rectifying device 33 plays a role in preventing the thin sheet conveyed out by the conveyor belt assembly 3 from deviating during the transportation process, thereby improving the production quality of the thin sheet. The deviation rectifying device belongs to the prior art and will not be elaborated here.

[0046] Preferably, the thick slurry method thin sheet conveying system further includes a peeling knife assembly 16. The peeling knife assembly 16 is arranged in the first fixed seat 13 and is used to peel the thin sheet, enabling the thin sheet to be smoothly conveyed from the first transmission shaft 11 to the belt 31. The peeling knife is the prior art and will not be elaborated here.

[0047] When the thick slurry method thin sheet conveying system is running, to prevent misjudgment and adjustment of thin sheet jitter, when the detection device irradiates the running thin sheet for 2 consecutive seconds, it indicates that the thin sheet is in a tensioned state at this time, and the running speed of the subsequent equipment is too fast. At this time, adjustment is carried out in a 3-second cycle: within 0 - 3 seconds, the running frequency of the belt 31 is reduced by 0.1 Hz, within 3 - 6 seconds, the running frequency of the belt 31 is reduced by 0.2 Hz, within 6 - 9 seconds, the running frequency of the belt 31 is reduced by 0.3 Hz, and the subsequent cycle maintains a deceleration frequency of 0.3 Hz. To ensure the effective operation of the belt 31, its running frequency is at least 10 Hz. When the detection device cannot irradiate the running thin sheet for 0.5 consecutive seconds, it indicates that the thin sheet at the outlet of the dryer has become loose. Since the detection device cannot judge the degree of thin sheet relaxation, the program will adjust the running speed of the belt 31 according to the real-time speed of the steel belt at this time, and the thin sheet will be tightened again, and the above control will continue. Throughout the process, the running state of the thin sheet changes between being tightened and loose under the control of the program, which is beneficial to the continuous production of the thin sheet.

[0048] On the other hand, this embodiment also provides a thin sheet drying and forming line, which includes a first baking and forming machine 100, a second baking and forming machine 200, a thin sheet rewinder 300, and a thick slurry method thin sheet conveying system. The first baking and forming machine 100, the thick slurry method thin sheet conveying system, the second baking and forming machine 200, and the thin sheet rewinder 300 are connected in sequence. The first baking and forming machine 100 and the second baking and forming machine 200 are used for baking and forming the thin sheet, and the thin sheet rewinder 300 is used for rewinding the thin sheet that has passed through the first baking and forming machine 100, the second baking and forming machine 200, and the thick slurry method thin sheet conveying system in sequence to obtain a thin sheet product.

[0049] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments, and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions, and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims

1. A thick slurry method sheet conveying system is arranged between a first baking and forming machine (100) and a second baking and forming machine (200) for conveying sheets, and is characterized in that, The thick slurry method sheet conveying system includes: A first conveying mechanism (1), including a first conveying shaft (11) and an induction component (12). The first conveying shaft (11) is used to convey the sheet conveyed out by the first baking and forming machine (100). The first conveying shaft (11) is connected with a speed detection component. The induction component (12) includes a sensor (121), and the sensor (121) is used to sense the sheet passing through the first conveying shaft (11); A conveyor belt component (3), which is used to convey the sheet conveyed out by the first conveying mechanism (1); A second conveying mechanism (2), including a second conveying shaft (21). The second conveying shaft (21) is used to convey the sheet conveyed out by the conveyor belt component (3) and convey the sheet to the second baking and forming machine (200); A control mechanism, which is communicatively connected to the induction component (12), the speed detection component, the conveyor belt component (3) and the second conveying shaft (21). The control mechanism is used to control the linear speeds of the conveyor belt component (3) and the second conveying shaft (21).

2. The slurry method sheet conveying system according to claim 1, characterized in that The first conveying mechanism (1) further includes a first fixing seat (13). The first conveying shaft (11) is rotatably arranged on the first fixing seat (13), and the induction component (12) is arranged on the first fixing seat (13) in a liftable manner.

3. The slurry method sheet conveying system according to claim 2, wherein, The induction component (12) further includes a mounting member (122). The sensor (121) is arranged on the first fixing seat (13) in a liftable manner through the mounting member (122).

4. The slurry method sheet conveying system according to claim 3, characterized in that, The induction component (12) further includes an induction driving member. The output end of the induction driving member is connected to the mounting member (122) to drive the mounting member (122) to drive the sensor (121) to lift.

5. The slurry method sheet conveying system according to claim 3, characterized in that, A slide rail is further arranged in the first fixing seat (13). A slider is slidably arranged on the slide rail, and the mounting member (122) is connected to the slider.

6. The slurry method sheet conveying system according to any one of claims 1-5, characterized in that, The conveyor belt component (3) includes a belt (31) and a conveying driving device (32). The output end of the conveying driving device (32) is connected to the belt (31) to drive the belt (31) to operate.

7. The slurry method sheet conveying system according to any one of claims 1-5, characterized in that, A first bearing member (14) is arranged on the first conveying shaft (11). The first bearing member (14) is used to support and convey the sheet conveyed out by the first baking and forming machine (100).

8. The thick slurry method sheet conveying system according to any one of claims 1-5, characterized in that, A second bearing member (22) is arranged on the second conveying shaft (21). The second bearing member (22) is used to support and convey the sheet conveyed out by the conveyor belt component (3) and convey the sheet to the second baking and forming machine (200).

9. The slurry method sheet conveying system according to any one of claims 1-5, characterized in that, The second conveying mechanism (2) further includes a second fixing seat (23). The second conveying shaft (21) is rotatably arranged on the second fixing seat (23).

10. A thin sheet drying and forming line, comprising a first baking and forming machine (100), a second baking and forming machine (200), a thin sheet winding machine (300), and a thick slurry method thin sheet conveying system as described in any one of claims 1-9, wherein the first baking and forming machine (100), the thick slurry method thin sheet conveying system, the second baking and forming machine (200), and the thin sheet winding machine (300) are connected in sequence.

Images