Glycerol triacetate rapid switching device

Abstract

The utility model discloses a fast switching device of glyceryl triacetate, relates to tobacco processing equipment technical field, including liquid storage tank no. 1, liquid storage tank no. 2 and switching mechanism, liquid storage tank no. 1 and liquid storage tank no. A first inlet, a second inlet, an outlet and a recovery port are formed in the valve body, the first inlet is communicated with a first liquid storage tank through a first connecting pipe, the second inlet is communicated with a second liquid storage tank through a second connecting pipe, a liquid outlet pipe is connected to the outlet, a spraying pipe is connected to an outlet of the liquid outlet pipe, and a plurality of spraying nozzles are installed on the spraying pipe; according to the utility model, quick switching of plasticizers is realized by rotating the valve core, and the switching time is shortened from 60 minutes to 3 minutes, so that the production efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to tobacco processing equipment technical field, concretely relates to a triacetin quick switching device. BACKGROUND

[0002] In the tobacco processing industry, KDF2 type filter stick making machine is one of the key equipment for producing high quality filter stick. The device needs to add triacetin (hereinafter referred to as "plasticizer") to filter stick material to improve its flexibility and plasticity in the filter stick forming process. However, with the increasing diversification of market demand for filter stick varieties, the existing KDF2 type filter stick making machine exposes a series of problems in the plasticizer application, especially in the plasticizer quick switching scene of multi-variety filter stick production.

[0003] The plasticizer application device of the existing KDF2 type filter stick making machine generally adopts parallel design of large and small double storage boxes. Although this design provides flexibility in plasticizer storage and switching to a certain extent, it also brings complex pipeline structure. Whenever it is necessary to switch the production of different varieties of filter stick, the operator must thoroughly clean the two liquid storage tanks and their connecting pipelines to prevent cross contamination between different plasticizers. However, this cleaning process not only takes a long time (about 40-60 minutes / time), but also greatly affects the overall efficiency of the production line.

[0004] In addition, the existing cleaning scheme also has serious problems in raw material waste. In order to completely empty the residual liquid, the plasticizer in the liquid storage tank needs to be almost completely emptied each time, which results in an average loss of 2-3 kilograms of triacetin each time. In a long production cycle, this waste not only increases the production cost, but also causes unnecessary burden to the environment.

[0005] More seriously, the manual cleaning method has a significant risk of cross contamination. Due to the blind area in the cleaning process, the residual material is difficult to be completely removed, which may cause the problem of cross smell of different batches of products.

[0006] In view of the above problems, the company's existing solution is to empty the liquid storage tank first, then add 30 liters of alcohol with a concentration of more than 95% for 30 minutes of circulating cleaning, and then add 30 liters of triacetin for 30 minutes of circulating cleaning after emptying. Although this scheme can reduce the risk of cross contamination to a certain extent, its shortcomings are also obvious: on the one hand, high concentration of alcohol not only increases the risk in the cleaning process, but also the whole cleaning process is still a serious waste; on the other hand, frequent shutdown for cleaning also seriously affects the continuity and stability of production.

[0007] Therefore, in view of the requirement of quick switching of plasticizer for KDF2 type filter rod making machine in multi-species filter rod production, an improved technology of a more efficient, environmentally friendly and safe plasticizer application device is needed to solve the problems of complex pipeline structure, raw material waste, cross contamination risk and poor compatibility of additives of the existing equipment. Utility model content

[0008] The utility model discloses a triacetin quick switching device, solve the technical problem of complex pipeline structure, raw material waste, cross contamination risk and poor compatibility of additives of the existing equipment.

[0009] The utility model discloses a triacetin quick switching device, solve the technical problem of complex pipeline structure, raw material waste, cross contamination risk and poor compatibility of additives of the existing equipment.

[0010] A triacetin quick switching device, including liquid storage tank no. 1, liquid storage tank no. 2 and switching mechanism, liquid storage tank no. 1 and liquid storage tank no. 2 are arranged side by side, the switching mechanism includes valve body, the valve core is rotationally arranged in the valve body, the valve body is provided with inlet no. 1, inlet no. 2, outlet and recovery port, inlet no. 1 is connected with liquid storage tank no. 1 through connecting pipe no. 1, inlet no. 2 is connected with liquid storage tank no. 2 through connecting pipe no. 2, the outlet is connected with liquid outlet pipe, the liquid outlet pipe is connected with the spray pipe at the outlet, a plurality of spray nozzles are installed on the spray pipe.

[0011] Preferably, the liquid level sensor is arranged on the upper end of the liquid storage tank no. 1 and the liquid storage tank no. 2 for detecting the liquid level.

[0012] Preferably, the temperature controller is connected with the electric heating belt no. 1 and the electric heating belt no. 2, the electric heating belt no. 1 is wound around the outer periphery of the liquid storage tank no. 2, and the electric heating belt no. 2 is wound around the outer periphery of the liquid storage tank no. 1.

[0013] Preferably, the inlet of the spray pipe is connected with the air supply pipe for supplying compressed air.

[0014] Preferably, the inner wall of the spray pipe is provided with a spiral flow guide groove for forming a spiral flow path for the fluid.

[0015] Preferably, the upper end of the valve body is fixedly installed with a driving motor, and the output end of the driving motor is fixedly connected with a rotating shaft through a shaft coupling, and the rotating shaft is fixedly connected with the valve core.

[0016] Preferably, the valve core is provided with flow channel no. 1 and flow channel no. 2, and the projection of the flow channel no. 1 and the flow channel no. 2 on the ground is in a cross structure.

[0017] Preferably, when the switching mechanism is in the initial position, the flow channel no. 1 is connected with the inlet no. 1 and the outlet, and the flow channel no. 2 is connected with the inlet no. 2 and the recovery port; when the switching mechanism is switched, the flow channel no. 1 is connected with the inlet no. 1 and the recovery port, and the flow channel no. 2 is connected with the inlet no. 2 and the outlet.

[0018] Preferably, sealing ring one and sealing ring two are arranged between the valve body and the valve core, and the inner wall of the valve body and the outer periphery of the valve core are provided with sealing grooves matched with the sealing ring one and the sealing ring two.

[0019] Preferably, the outer periphery of the valve core is provided with a limiting block for limiting the rotation angle of the valve core, and the inner wall of the valve body is provided with a limiting groove matched with the limiting block.

[0020] The beneficial effects of the present utility model are as follows:

[0021] (1) The rotation valve core realizes the rapid switching of plasticizer, and the switching time is shortened from 60 minutes to 3 minutes, thereby greatly improving the production efficiency.

[0022] (2) The residual liquid in the original pipeline is recycled through negative pressure, and the cross-contamination rate is reduced from 0.15% to 0.02% or less, thereby ensuring the quality and stability of the product.

[0023] (3) The temperature controller heats the liquid storage tank through the electric heating belt, can accurately control the temperature of the plasticizer, and ensures the performance and stability thereof.

[0024] (4) The compressed air and the plasticizer are mixed to form a mist spray, thereby improving the spraying effect and uniformity, and being beneficial to the quality improvement of the filter rod. BRIEF DESCRIPTION OF DRAWINGS

[0025] The present utility model will be further described below in combination with the drawings.

[0026] Figure 1 is the overall structure schematic view of the present utility model;

[0027] Figure 2 is the structure schematic view of the switching mechanism of the present utility model;

[0028] Figure 3 is the structure schematic view of the switching mechanism state one of the present utility model;

[0029] Figure 4 is the structure schematic view of the switching mechanism state two of the present utility model.

[0030] In the figure: 100, liquid storage tank one; 101, connecting pipe one; 200, liquid storage tank two; 201, connecting pipe two; 400, switching mechanism; 41, valve body; 411, inlet one; 412, inlet two; 413, outlet; 414, recovery port; 415, limiting groove; 42, valve core; 421, flow passage one; 422, flow passage two; 43, rotating shaft; 44, driving motor; 45, sealing ring one; 46, sealing ring two; 47, limiting block; 500, temperature controller; 501, electric heating band one; 502, electric heating band two; 600, liquid level sensor; 700, liquid outlet pipe; 800, gas supply pipe; 900, spray pipe; 901, spray nozzle. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the application / utility model will be clearly and completely described below with reference to the drawings in the embodiments of the application / utility model. Obviously, the described embodiments are only part of the embodiments of the application / utility model, rather than all the embodiments. Based on the embodiments in the application / utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the application / utility model.

[0032] In the description of the application / utility model, it should be understood that the terms "upper", "lower", "left", "right", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application / utility model and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, and a particular orientation configuration and operation, therefore, it cannot be understood as a limitation on the application / utility model. In addition, "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features. In the description of the application / utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0033] In the description of the application / utility model, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connection", "connection" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application / utility model can be understood according to the specific circumstances.

[0034] Please refer to Figures 1-4The utility model discloses a triacetin quick switching device, including liquid storage tank one 100, liquid storage tank two 200 and switching mechanism 400, liquid storage tank one 100 and liquid storage tank two 200 are arranged side by side, switching mechanism 400 includes valve body 41, be provided with valve core 42 in the valve body 41 rotation, be provided with inlet one 411, inlet two 412, outlet 413 and recovery mouth 414 on valve body 41, inlet one 411 is connected with liquid storage tank one 100 through connecting pipe one 101, inlet two 412 is connected with liquid storage tank two 200 through connecting pipe two 201, be connected with liquid outlet pipe 700 on outlet 413, the outlet of liquid outlet pipe 700 is connected with spray pipe 900, be installed with a plurality of spray nozzles 901 on spray pipe 900.

[0035] In an alternative embodiment, the liquid level sensor 600 is arranged on the upper end of the liquid storage tank one 100 and the liquid storage tank two 200 for detecting the liquid level.

[0036] It should be noted that the liquid level sensor 600 monitors the liquid level of the liquid storage tank in real time, and automatically triggers switching or liquid supplement through signal feedback to avoid material interruption risk.

[0037] In an alternative embodiment, a temperature controller 500 is further included, and the temperature controller 500 is connected with an electric heating belt one 501 and an electric heating belt two 502, the electric heating belt one 501 is wound around the outer periphery of the liquid storage tank two 200, and the electric heating belt two 502 is wound around the outer periphery of the liquid storage tank one 100.

[0038] It should be noted that the temperature controller 500 maintains the constant temperature of the liquid storage tank through the electric heating belt, ensures the stable viscosity of triacetin, and prevents low-temperature crystallization or high-temperature volatilization.

[0039] In an alternative embodiment, the inlet of the spray pipe 900 is connected with a gas supply pipe 800 for supplying compressed air.

[0040] It should be noted that the gas supply pipe 800 provides compressed air to drive the plasticizer in the spray pipe 900 to form atomized spray, thereby improving application efficiency.

[0041] In an alternative embodiment, a spiral flow guide groove is arranged on the inner wall of the spray pipe 900 for forming a spiral flow path for the fluid.

[0042] It should be noted that the spiral flow guide groove forms a spiral flow of the liquid in the spray pipe, enhances the atomization effect, avoids droplet aggregation, and ensures uniform coverage of the spray nozzles 901.

[0043] In an alternative embodiment, a driving motor 44 is fixedly installed on the upper end of the valve body 41, the output end of the driving motor 44 is fixedly connected with a rotating shaft 43 through a shaft coupling, and the rotating shaft 43 is fixedly connected with the valve core 42.

[0044] The valve core 42 is provided with flow channel one 421 and flow channel two 422, which are perpendicular to the projection of the ground in a cross structure.

[0045] Need to explain, drive motor 44 and cross flow channel linkage, so that the valve core 42 rotates 90°, that is, the path switching is completed, the action is accurate and fast.

[0046] When the switching mechanism 400 is in the initial position, the flow channel one 421 is connected with the inlet one 411 and the outlet 413, and the flow channel two 422 is connected with the inlet two 412 and the recovery port 414; when the switching mechanism 400 is switched, the flow channel one 421 is connected with the inlet one 411 and the recovery port 414, and the flow channel two 422 is connected with the inlet two 412 and the outlet 413.

[0047] Need to explain, double flow channel switching logic realizes "one use one clean" mode, and the cleaning and liquid supply are synchronized, so that the downtime is saved.

[0048] In an optional embodiment, the sealing ring one 45 and the sealing ring two 46 are arranged between the valve body 41 and the valve core 42, and the inner wall of the valve body 41 and the outer periphery of the valve core 42 are provided with sealing grooves matched with the sealing ring one 45 and the sealing ring two 46.

[0049] In an optional embodiment, the outer periphery of the valve core 42 is provided with a limiting block 47 for limiting the rotation angle of the valve core 42, and the inner wall of the valve body 41 is provided with a limiting groove 415 matched with the limiting block 47.

[0050] Need to explain, the sealing ring adopts corrosion-resistant material, and is mechanically locked with the limiting block 47, so that double protection is provided for no leakage and misoperation.

[0051] The working principle of the utility model is: during work, according to the production requirement, the corresponding liquid storage tank is selected. The drive motor 44 drives the valve core 42 to rotate, so that the flow channel one 421 or the flow channel two 422 is connected with the outlet 413, thereby realizing the rapid switching of plasticizer. When it is necessary to switch the plasticizer, the residual liquid in the original pipeline is recycled to the temporary storage tank by the negative pressure recovery through the recovery port 414, so that the waste of raw materials and cross contamination are avoided. At the same time, the liquid level sensor 600 monitors the liquid level in the liquid storage tank in real time, so that the plasticizer is ensured to be supplemented in time. The temperature controller 500 heats the liquid storage tank through the electric heating belt, so that the plasticizer is kept in the appropriate temperature range, so as to ensure the performance and stability. During the spraying process, the compressed air enters the spraying pipe 900 through the air supply pipe 800, and forms a mist spray after being mixed with the plasticizer, so that the spraying effect and uniformity are improved.

[0052] The above has carried out the detailed description to one embodiment of the utility model, but the content described is only the preferred embodiment of the utility model, cannot be considered for limiting the implementation scope of the utility model. All equal changes and improvements etc. that are made in the utility model application scope should still belong to the patent coverage scope of the utility model.

Claims

1. A triacetin quick switch device, characterized by, The utility model provides a liquid supply device, including liquid storage tank one (100), liquid storage tank two (200) and switching mechanism (400), liquid storage tank one (100) and liquid storage tank two (200) are side by side, switching mechanism (400) includes valve body (41), valve core (42) is rotationally arranged in valve body (41), be provided with inlet one (411), inlet two (412), outlet (413) and recovery mouth (414) on valve body (41), inlet one (411) is connected with liquid storage tank one (100) through connecting pipe one (101), inlet two (412) is connected with liquid storage tank two (200) through connecting pipe two (201), outlet (413) is connected with liquid outlet pipe (700), the outlet of liquid outlet pipe (700) is connected with spray pipe (900), and a plurality of spray nozzles (901) are installed on spray pipe (900).

2. A triacetin quick switching device according to claim 1, characterized in that, Liquid level sensor (600) for detecting liquid level is arranged on the upper end of liquid storage tank one (100) and liquid storage tank two (200).

3. A triacetin quick switching device according to claim 1, characterized in that, It also includes a temperature controller (500), which is connected with an electric heating belt one (501) and an electric heating belt two (502), the electric heating belt one (501) is wound around the outer periphery of the liquid storage tank two (200), and the electric heating belt two (502) is wound around the outer periphery of the liquid storage tank one (100).

4. A triacetin quick switching device according to claim 1, characterized in that, The inlet of the spray pipe (900) is connected with a gas supply pipe (800) for supplying compressed air.

5. A triacetin quick switching device according to claim 1, characterized in that, The inner wall of the spray pipe (900) is provided with a spiral flow guide groove for forming a spiral flow path for the fluid.

6. A triacetin quick switch device according to claim 1, characterized in that, A drive motor (44) is fixedly installed on the upper end of the valve body (41), and the output end of the drive motor (44) is fixedly connected with a rotating shaft (43) through a shaft coupling, and the rotating shaft (43) is fixedly connected with the valve core (42).

7. A triacetin quick switch device according to claim 6, characterized in that The valve core (42) is provided with a flow channel one (421) and a flow channel two (422), and the projection of the flow channel one (421) and the flow channel two (422) on the ground is in a cross structure.

8. A triacetin quick switch device according to claim 7, characterized in that, When the switching mechanism (400) is in the initial position, the flow channel one (421) communicates the inlet one (411) and the outlet (413), and the flow channel two (422) communicates the inlet two (412) and the recovery mouth (414); when the switching mechanism (400) is switched, the flow channel one (421) communicates the inlet one (411) and the recovery mouth (414), and the flow channel two (422) communicates the inlet two (412) and the outlet (413).

9. A triacetin quick switch device according to claim 6, characterized in that, A sealing ring one (45) and a sealing ring two (46) are arranged between the valve body (41) and the valve core (42), and the inner wall of the valve body (41) and the outer periphery of the valve core (42) are provided with sealing grooves matched with the sealing ring one (45) and the sealing ring two (46).

10. A triacetin quick switch device according to claim 6, characterized in that, The outer periphery of the valve core (42) is provided with a limiting block (47) for limiting the rotation angle of the valve core (42), and the inner wall of the valve body (41) is provided with a limiting groove (415) matched with the limiting block (47).

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