A tobacco liquid mixing and stirring device and control method thereof

Abstract

The present invention discloses a tobacco liquid modulation and stirring device and a control method thereof, which includes a vehicle-type weighing scale, a modulation barrel, a frame-type frame, an integrated control cabinet, a stirring motor, a lifting mechanism, a stirring impeller, and a clamping mechanism; the lifting mechanism includes a coupling, a bearing seat, a support platform, a buffer pad, a lifting guide rail, a linear bearing, a lifting cylinder, and a limit switch; the clamping mechanism includes a second limit switch, a positioning bracket, a rotating clamping cylinder, and a clamping bracket. The present invention adopts a barrel positioning clamping mechanism, a stirring platform automatic lifting mechanism, and a pneumatic motor drive to cooperate with each other, and adopts a pneumatic logic control method as a whole to ensure the modulation and homogenization quality, improve the working efficiency, reduce the labor intensity of the operator, and eliminate the hidden dangers of working safety, which is suitable for the promotion and use of tobacco liquid modulation and stirring devices.

Description

Technical Field

[0001] The invention relates to the technical field of tobacco industry silk making equipment / process, and in particular to a tobacco liquid mixing and stirring device and a control method thereof. Background Art

[0002] On the tobacco silk processing line, flavors and fragrances are added to improve the taste of cigarettes. The liquid of flavors and fragrances is prepared according to a certain proportion of the multiple ingredients in the formula. During the preparation process before adding, the liquid needs to be stirred to mix the components evenly to form a uniform, stable and precipitate-free solution.

[0003] The majority of current stirring devices have fixed stirring blades. Since the position and movement path of the stirring blades are fixed, it is difficult to ensure the uniformity of the liquid. With the improvement of the brand / quality of tobacco products, the uniform mixing of liquid and material configuration has received more and more attention from enterprises, and many stirring devices with adjustable stirring blades have also appeared. For example, the prior art CN202366635U discloses a pneumatic lifting and extending blade mixer, TW201410316A discloses a raw material processing equipment, CN205886758U discloses a pneumatic stirring mechanism, CN113813825A discloses a stirrer with adjustable stirring blade angle, CN219502483U discloses a tobacco flavor solution stirring device, etc. However, the stirring blade angles of these patented devices are adjusted in a small range, and the adjustment mechanism is relatively complex, which is not conducive to actual production applications. Summary of the invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a tobacco liquid preparation and stirring device and a control method thereof, which solves the problems that the existing tobacco liquid preparation requires complicated operations by operators, and has high labor consumption, high labor intensity, inconvenient operation and low safety. The design adopts a barrel positioning clamping mechanism, a stirring platform automatic lifting mechanism and a pneumatic motor drive to cooperate with each other, and adopts a pneumatic logic control method as a whole, which effectively replaces the operator's working mode of holding and pressing, hand-held stirring, and lifting the mixer and the bracket to add ingredients, thereby ensuring the quality of preparation and homogenization, improving work efficiency, reducing the labor intensity of operators, and eliminating safety hazards in operations.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is: A tobacco liquid mixing and stirring device comprises a vehicle-type weighing scale (1), a mixing barrel (2), a frame-type frame (3), an integrated control cabinet (4), a stirring motor (5), a lifting mechanism (6), a stirring impeller (7), and a clamping mechanism (8), characterized in that: the mixing barrel is placed on the table of the vehicle-type weighing scale, and the mixing barrel can be moved into and out of the frame-type frame together with the vehicle-type weighing scale; the integrated control cabinet, the stirring motor, and the lifting mechanism are installed on the upper end of the frame-type frame; the stirring motor is connected to the stirring impeller through a retractable stirring shaft; and the clamping mechanism is arranged on the outer peripheral side of the frame-type frame; the lifting mechanism comprises a coupling (61), a bearing seat (62), a support platform (63), a buffer pad (64), and a lifting guide rail (65). , linear bearing (66), lifting cylinder (67), first limit switch (68), the stirring motor is installed on the upper end of the support platform through the bracket, the output end of the stirring motor is connected to the telescopic stirring shaft through the coupling, the upper end of the telescopic stirring shaft is supported by the bearing seat, the buffer pad is installed on the upper end surface of the support platform through the adjustable screw and nut, the support platform is installed with a lifting guide rail, the frame frame is installed with a linear bearing, the lifting guide rail is slidably connected to the linear bearing, the outer side of the frame frame is installed with a lifting cylinder, the upper end of the lifting cylinder is connected to the support platform, and the lower end is connected to the bottom of the frame frame, and the first limit switch is installed on the upper end of the frame frame; the buffer pad, lifting guide rail, linear bearing, and lifting cylinder are multiple.

[0006] Furthermore, the clamping mechanism (8) is used to clamp and position the modulation material barrel that has entered into position, and the clamping mechanism comprises a second limit switch (81), a positioning bracket (82), a rotating clamping cylinder (83), and a clamping bracket (84). The positioning bracket and the second limit switch are arranged on the rear side of the frame frame, the rotating clamping cylinder and the clamping bracket are arranged on the front side of the frame frame, the positioning bracket is installed on the frame column of the frame frame through an adjustable screw and a nut, the end of the positioning bracket is provided with an arc block that matches the outer circumference of the modulation material barrel, the rotating clamping cylinder is installed on the frame column, the output end of the rotating clamping cylinder is connected to the clamping bracket, the end of the clamping bracket is provided with an arc block that matches the outer circumference of the modulation material barrel, and the clamping bracket can be extended and rotated under the drive of the rotating clamping cylinder.

[0007] Furthermore, the weighing table of the vehicle-type weighing scale measures the mass of the mixing barrel filled with liquid material, and at the same time, carries and transports the mixing barrel together and pushes it into the frame rack for stirring the liquid material, so that it is convenient to drive in and out of the frame rack when spices are frequently added during the liquid material preparation process; the positioning bracket and the clamping bracket of the clamping mechanism match the outer circumference diameter of the mixing barrel to position and fix the mixing barrel; the rotary clamping cylinder is a single cylinder whose piston rod can realize a 90° rotation during the linear motion process.

[0008] Furthermore, the coupling is matched with the bearing seat through an angular contact bearing, and the stirring impeller adopts a spiral large blade design. The blade is provided with a guide hole, which runs through both sides of the blade and is a conical guide hole. The aperture on the convex arc side of the blade is large, and the aperture on the concave arc side is small, so that the stirring is faster and more uniform.

[0009] Furthermore, the retractable stirring shaft is a pneumatically controlled retractable stirring shaft and is connected to a pneumatic control system.

[0010] A control method for a tobacco liquid mixing and stirring device, wherein the pneumatic control system comprises an air source processing device, two-position three-way manual valves S0 and S5, a lifting cylinder control circuit, a clamping cylinder control circuit, a stirring motor control circuit, three-position five-way manual valves S6 and S8, a first and a second limit switch, a one-way throttle valve, a pilot one-way speed regulating valve, a lifting cylinder, and a rotating clamping cylinder. The compressed air source is filtered and pressure-adjusted by the air source processing device, and after entering the two-position three-way manual valve S0, it is divided into three output branches: Branch 1: Lifting cylinder control circuit: When the three-position five-way manual valve S6 is selected to enter the working position in the right position, the compressed air enters the rodless chamber of the lifting cylinder in the forward direction through the pilot one-way speed regulating valve to push the piston rod out, and the piston rod pushing out speed is adjusted by adjusting the one-way throttle valve at the exhaust port of the rod chamber; when the three-position five-way manual valve S6 is selected to enter the working position in the left position, the compressed air enters the rod chamber of the lifting cylinder in the forward direction through the one-way throttle valve to push the piston rod back, and then two states are output according to the working state of the second limit switch of the clamping control circuit: one is that when the modulation barrel enters the frame rack and touches the positioning bracket, the air circuit of the second limit switch for in-position detection is opened, and the compressed air enters the pilot one-way speed regulating valve as a pilot signal, and the piston rod retraction speed is adjusted by adjusting its one-way throttle valve; the second is that when the modulation barrel does not enter the frame rack or enters the state of not in place to touching the positioning bracket, the pilot one-way speed regulating valve closes the exhaust air circuit, and the piston rod cannot retract and remains in the extended state; Branch 2: Clamping cylinder control circuit: When the mixing barrel enters the frame frame and touches the positioning bracket, the air circuit of the second limit switch for in-place detection is opened, and the compressed air enters the middle position of the three-position five-way manual valve S8 through the second limit switch. When the right position is selected to enter the working position, the compressed air enters the rodless chamber of the rotary clamping cylinder in the forward direction through the one-way throttle valve, and the piston rod is pushed out horizontally for a certain distance and then rotated 90°, driving the clamping bracket to be released horizontally and rotated to the vertical state from the horizontal clamping state; on the contrary, when the left position is selected to enter the working position, the clamping bracket rotates from the vertical state to the horizontal state, and then retracts to the clamping state; Branch three: stirring motor control circuit: When the supporting platform of the lifting mechanism drops to the bottom position, it touches the first limit switch for in-position detection and the air circuit is opened. The two-position three-way manual valve S5 selects the open position, and the compressed air enters the stirring motor through the one-way throttle valve. The rotation speed of the stirring motor is adjusted by adjusting the one-way throttle valve.

[0011] Furthermore, the rodless chamber of the lifting cylinder of the lifting cylinder control circuit adopts a pilot one-way speed regulating valve to control the air flow discharge, and adopts the air source of the second limit switch for detecting the entry of the modulation barrel into the frame rack as a pilot signal to ensure that when the lifting cylinder descends, the stirring impeller directly enters the modulation barrel; the rotating clamping cylinder air source of the clamping cylinder control circuit is connected in series with the second limit switch for detecting the entry of the modulation barrel into the frame rack to prevent the clamping mechanism from being opened by mistake when the modulation barrel is not in place; the stirring motor air source of the stirring motor control circuit is connected in series with the first limit switch air circuit for detecting the descent of the support platform of the lifting mechanism arranged at the upper end of the frame rack to prevent the stirring motor from being turned on when the support platform is raised, thereby ensuring the safety of the stirring device.

[0012] Without changing the original structure of the equipment, the present invention adopts a vehicle-type metering scale to measure the mass of the mixing barrel containing the material liquid, and at the same time carries and transports the mixing barrel into the stirring device, so as to facilitate the metering and transportation work when spices are frequently added during the material liquid preparation process; a clamping mechanism is provided, and the mixing barrel that has entered into place is clamped and positioned through the cooperation of a positioning bracket and a limit rotating clamping cylinder, so as to prevent the mixing barrel from shifting during the stirring process; a lifting mechanism is provided, and a buffer pad, a lifting guide rail, a linear bearing, and a lifting cylinder are symmetrically provided on both sides of the frame frame to connect, carry, and drive the support platform on the upper part of the frame frame to move, so as to ensure the running stability of the stirring device; a pneumatically driven stirring motor is adopted, and the coupling is supported by a bearing seat and is connected to a telescopic stirring shaft and a stirring impeller, so as to ensure that the stirring work during the material liquid preparation process is safe, stable and reliable; an integrated panel is provided on the desktop of the frame frame, which greatly facilitates the operation and use of the device.

[0013] The present invention adopts a lifting cylinder control circuit in the pneumatic control system, and uses a pilot one-way speed regulating valve in the lifting cylinder to perform pilot signal logic control with the modulation barrel in-place limit switch to ensure that the stirring impeller enters the modulation barrel directly when it descends; a clamping cylinder control circuit is set, and the air circuit of the rotating clamping cylinder and the modulation barrel in-place limit switch is connected in series with logic control to prevent the clamping mechanism from being opened by mistake when the modulation barrel is not in place; a stirring motor control circuit is set, and the air source of the stirring motor is connected in series with the air circuit of the pneumatic platform of the lifting mechanism to descend to the place limit switch to prevent the stirring motor from being turned on when the supporting platform is raised, thereby ensuring the safety and stability of the stirring device.

[0014] The tobacco liquid mixing and stirring device and the control method thereof of the present invention are designed to adopt a barrel positioning clamping mechanism, a stirring platform automatic lifting mechanism and a pneumatic motor drive to cooperate with each other, and the overall pneumatic logic control method is adopted to ensure the quality of mixing and homogenization, improve work efficiency, reduce the labor intensity of operators, eliminate work safety hazards, and are suitable for the promotion and use of tobacco liquid mixing and stirring devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the tobacco liquid preparation and stirring device of the present invention from a first viewing angle; Figure 2 This is a schematic structural diagram of the tobacco liquid preparation and stirring device of the present invention from a second viewing angle; Figure 3 It is a schematic diagram of the structure of the stirring platform raising of the tobacco liquid preparation and stirring device of the present invention; Figure 4 It is a schematic diagram of the pneumatic control system of the tobacco liquid mixing and stirring device of the present invention.

[0016] In the figure: a car-type weighing scale 1, a mixing barrel 2, a frame-type rack 3, an integrated control cabinet 4, a stirring motor 5, a lifting mechanism 6, a coupling 61, a bearing seat 62, a supporting platform 63, a buffer pad 64, a lifting guide rail 65, a linear bearing 66, a lifting cylinder 67, a first limit switch 68, a stirring impeller 7, a clamping mechanism 8, a second limit switch 81, a positioning bracket 82, a rotary clamping cylinder 83, a clamping bracket 84; an air source processing device R0, a two-position three-way manual valve S0, S5, a three-position five-way manual valve S6, S8, a one-way throttle valve R1, and a pilot-operated one-way speed regulating valve R2. DETAILED DESCRIPTION

[0017] In order to make the technical solution and advantages of the present invention clearer, the technical solution of the present invention will be further described in detail in detail with reference to the accompanying drawings. It can be understood that the specific embodiments described here are only partial embodiments of the present invention, which are only used to explain the present invention, not to limit the present invention. It should be noted that, for the convenience of description, only the parts / structures related to the present invention are shown in the accompanying drawings, and other related parts can refer to the general design. In the absence of conflict, the embodiments of the present invention and the technical features in the embodiments can be combined with each other to obtain new embodiments.

[0018] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0019] like Figure 1-4As shown, a tobacco liquid modulation and stirring device comprises a vehicle-type metering scale 1, a modulation barrel 2, a frame frame 3, an integrated control cabinet 4, a stirring motor 5, a lifting mechanism 6, a stirring impeller 7, and a clamping mechanism 8, characterized in that: the modulation barrel 2 is placed on the table of the vehicle-type metering scale 1, and the modulation barrel 2 can move in and out of the frame frame 3 together with the vehicle-type metering scale 1, and the integrated control cabinet 4, the stirring motor 5, and the lifting mechanism 6 are installed on the upper end of the frame frame 3, and the stirring motor 5 is connected to the stirring impeller 7 through a retractable stirring shaft, and the outer peripheral side of the frame frame 3 is provided with a clamping mechanism 8; the lifting mechanism 6 comprises a coupling 61, a bearing seat 62, a support platform 63, a buffer pad 64, a lifting guide rail 65, a linear bearing 66, a lifting cylinder 67, and a first limit switch 68, The stirring motor 5 is installed on the upper end of the support platform 63 through a bracket, the output end of the stirring motor 5 is connected to the telescopic stirring shaft through a coupling 61, the upper end of the telescopic stirring shaft is supported by a bearing seat 62, and the buffer pad 64 is installed on the upper end surface of the support platform 63 through an adjustable screw and nut. A lifting guide rail 65 is installed on the support platform 63, and a linear bearing 66 is installed on the frame frame 3. The lifting guide rail 65 is slidably connected in the linear bearing 66. A lifting cylinder 67 is installed on the outer side of the frame frame 3. The upper end of the lifting cylinder 67 is connected to the support platform 63, and the lower end is connected to the bottom of the frame frame 3. The first limit switch 68 is installed on the upper end of the frame frame 3; the buffer pad 64, the lifting guide rail 65, the linear bearing 66, and the lifting cylinder 67 are multiple groups / multiple.

[0020] The clamping mechanism 8 is used for clamping and positioning the modulation barrel 2 in place. The clamping mechanism 8 includes a second limit switch 81, a positioning bracket 82, a rotating clamping cylinder 83, and a clamping bracket 84. The positioning bracket 82 and the second limit switch 81 are arranged on the rear side of the frame frame 3, and the rotating clamping cylinder 83 and the clamping bracket 84 are arranged on the front side of the frame frame 3. The positioning bracket 82 is installed on the frame column of the frame frame 3 through an adjustable screw and a nut. The end of the positioning bracket 82 is provided with an arc pad / arc block matching the outer circumference of the modulation barrel 2. The rotating clamping cylinder 83 is installed on the frame column. The output end of the rotating clamping cylinder 83 is connected to the clamping bracket 84. The end of the clamping bracket 84 is provided with an arc pad / arc block matching the outer circumference of the modulation barrel 2. The clamping bracket 84 can be extended and rotated under the drive of the rotating clamping cylinder 83, and the extension direction is perpendicular to the axis of the modulation barrel 2.

[0021] The pneumatic control components and operation control components for controlling the entire stirring device are integrated on / inside the integrated control cabinet 4. The pneumatic control system includes an air source processing device R0, two-position three-way manual valves S0 and S5, three-position five-way manual valves S6 and S8, a one-way throttle valve R1, and a pilot one-way speed regulating valve R2.

[0022] like Figure 4As shown, a control method for a tobacco liquid mixing and stirring device, the pneumatic control system includes an air source processing device R0, a two-position three-way manual valve S0, S5, a lifting cylinder control circuit, a clamping cylinder control circuit, a stirring motor control circuit, a three-position five-way manual valve S6, S8, a first and a second limit switch 81, 68, a one-way throttle valve R1, a pilot one-way speed regulating valve R2, a lifting cylinder 67, and a rotary clamping cylinder 83. The compressed air source is filtered and pressure-adjusted by the air source processing device R0, and after entering the two-position three-way manual valve S0, it is divided into three output branches: Branch 1: Lifting cylinder control circuit: When the three-position five-way manual valve S6 is selected to the right position to enter the working position, the compressed air enters the rodless chamber of the lifting cylinder 67 through the pilot one-way speed regulating valve R2 in the forward direction, pushing the piston rod out. The piston rod pushing speed is adjusted by adjusting the one-way throttle valve R1 at the exhaust port of the rod chamber; when the three-position five-way manual valve S6 is selected to the left position to enter the working position, the compressed air enters the rod chamber of the lifting cylinder 67 in the forward direction through the one-way throttle valve R1, pushing the piston rod back. At this time, according to the second limit of the clamping control circuit The switch 81 outputs two working states: one is that when the mixing barrel 2 enters the frame frame 3 and touches the positioning bracket 82, the air circuit of the second limit switch 81 is opened, and the compressed air enters the pilot one-way speed regulating valve R2 as a pilot signal, and the retraction speed of the piston rod is adjusted by adjusting its one-way throttle valve; the other is that when the mixing barrel 2 does not enter the frame frame 3 or does not enter the position to touch the positioning bracket 82, the pilot one-way speed regulating valve R2 closes the exhaust air circuit, and the piston rod cannot retract and remains in the extended state; Branch 2: Clamping cylinder control circuit: When the mixing barrel 2 enters the frame frame 3 and touches the positioning bracket 82, the air circuit of the second limit switch 81 is opened, and the compressed air enters the middle position of the three-position five-way manual valve S8 through the second limit switch 81. When the right position is selected to enter the working position, the compressed air enters the rodless cavity of the rotary clamping cylinder 83 in the forward direction through the one-way throttle valve R1, and the piston rod is pushed out horizontally for a certain distance and then rotated 90°, driving the clamping bracket 84 to be released horizontally and rotated to the vertical state from the horizontal clamping state; on the contrary, when the left position is selected to enter the working position, the clamping bracket 84 rotates from the vertical to the horizontal state, and then retracts to the clamping state; Branch three: stirring motor control circuit: When the supporting platform 63 of the lifting mechanism 6 descends to the lowest position, it touches the first limit switch 68 for in-position detection, and the air circuit is opened. The two-position three-way manual valve S5 selects the open position, and the compressed air enters the stirring motor 5 through the one-way throttle valve R1. The rotation speed of the stirring motor 5 is adjusted by adjusting the one-way throttle valve R1.

[0023] The weighing table of the vehicle-type weighing scale 1 measures the mass of the mixing barrel 2 containing the liquid material, and at the same time carries and transports the mixing barrel 2 and pushes it into the frame rack 3 for stirring the liquid material, so as to facilitate driving in and out of the frame rack 3 when frequently adding spices during the liquid material preparation process.

[0024] The positioning bracket 82 and the clamping bracket 84 of the clamping mechanism 8 match the outer circumference diameter of the mixing barrel 2 to position and fix the mixing barrel 2; the rotary clamping cylinder 83 is a piston rod of a single cylinder and can realize a 90° rotation during the linear motion process.

[0025] The coupling 61 cooperates with the bearing seat 62 through an angular contact bearing. The stirring impeller 7 adopts a spiral large blade design. A guide hole is opened on the blade. The guide hole runs through both sides of the blade, and the guide hole is a conical guide hole. The aperture on the convex arc side of the blade is large, and the aperture on the concave arc side is small, so the stirring is faster and more uniform; the retractable stirring shaft is a pneumatically controlled retractable stirring shaft and is connected to the pneumatic control system.

[0026] The rodless chamber of the lifting cylinder 67 of the lifting cylinder control circuit adopts a pilot one-way speed regulating valve R2 to control the air flow discharge, and uses the second limit switch 81 air source as a pilot signal to detect when the modulation barrel 2 enters the frame frame 3 to ensure that when the lifting cylinder 67 descends, the stirring impeller 7 enters the modulation barrel 2 directly.

[0027] The air source of the rotary clamping cylinder 83 of the clamping cylinder control circuit is connected in series with the second limit switch 81 for detecting when the mixing barrel 2 enters the frame frame 3 to prevent the clamping mechanism 8 from being opened by mistake when the mixing barrel 2 is not in place.

[0028] The stirring motor 5 air source of the stirring motor control circuit is connected in series with the first limit switch 68 air circuit of the lifting mechanism supporting platform 63 arranged at the upper end of the frame frame 3 to detect when the supporting platform 63 is lowered into place, so as to prevent the stirring motor 5 from being turned on when the supporting platform 63 is raised, thereby ensuring the safety of the stirring device.

[0029] A control method for a tobacco liquid mixing and stirring device, comprising: First, operate the air source switch valve S0 in the integrated control cabinet 4 to the open position, and then lift the cylinder valve S6 to the raised position; place the mixing barrel 2 to be stirred on the table of the car-type weighing scale 1, and push them into the frame rack 3 together; push the mixing barrel 2 pushed into the frame rack 3 close to the positioning bracket 82 until it hits the second limit switch 81 to open, operate the clamping cylinder valve S8 of the integrated control cabinet 4 to the clamping position, rotate the clamping cylinder 83 to drive the clamping bracket 84 to rotate 90° to the horizontal state and then retract, clamping the mixing barrel 2 in place; operate the lifting cylinder valve S6 of the integrated control cabinet 4 to the lowered position, and the support platform of the lifting mechanism 6 63, under the action of the lifting guide rail 65, the linear bearing 66 and the lifting cylinder 67, descends linearly to the cushion pad 64, the first limit switch 68 opens, and the stirring motor valve S5 of the integrated control cabinet 4 is operated to the open position. The stirring motor 5 is connected to the stirring impeller 7 through the coupling 61, the bearing seat 62 and the retractable stirring shaft and drives the stirring impeller 7 to rotate; when the stirring is finished, the control valve of the integrated control cabinet 4 is operated in reverse, the stirring motor 5 is stopped, the lifting cylinder 67 is lifted, the rotating clamping cylinder 83 is released, and the car-type weighing scale 1 is pulled out; the cylinder and motor running speeds are adjusted by adjusting the one-way throttle valve R1.

[0030] like Figure 4 As shown, a control method of a tobacco liquid mixing and stirring device, wherein the pneumatic control comprises: The method includes setting a lifting cylinder control circuit in the pneumatic control system, adopting a pilot signal logic control by referencing a pilot one-way speed regulating valve R2 in the lifting cylinder 67 and the second limit switch 81 in place of the modulation barrel 2, so as to ensure that the stirring impeller 7 enters the modulation barrel 2 directly when it descends; setting a clamping cylinder control circuit, through the air circuit series logic control of the rotating clamping cylinder 83 and the second limit switch 81 in place of the modulation barrel 2, to prevent the clamping mechanism 8 from being opened by mistake when the modulation barrel 2 is not in place; setting a stirring motor control circuit, through the air source of the stirring motor 5 and the air circuit series logic control of the first limit switch 68 when the support platform 63 of the lifting mechanism 6 descends to the place, to prevent the stirring motor 5 from being turned on when the support platform 63 is raised, so as to ensure the safety and stability of the stirring device.

[0031] The tobacco liquid mixing and stirring device and the control method thereof of the present invention are designed to adopt a barrel positioning clamping mechanism, a stirring platform automatic lifting mechanism and a pneumatic motor drive to cooperate with each other, and the overall pneumatic logic control method is adopted to ensure the quality of mixing and homogenization, improve work efficiency, reduce the labor intensity of operators, eliminate work safety hazards, and are suitable for the promotion and use of tobacco liquid mixing and stirring devices.

[0032] The above-mentioned implementation modes are for explanation of the present invention rather than limitation of the present invention. It can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tobacco liquid mixing and stirring device, comprising a vehicle-type weighing scale (1), a mixing barrel (2), a frame-type frame (3), an integrated control cabinet (4), a stirring motor (5), a lifting mechanism (6), a stirring impeller (7), and a clamping mechanism (8), characterized in that: A mixing barrel is placed on the table of the cart-type weighing scale. The mixing barrel can be moved in and out of the frame frame together with the cart-type weighing scale. An integrated control cabinet, a stirring motor, and a lifting mechanism are installed on the upper end of the frame frame. The stirring motor is connected to the stirring impeller through a retractable stirring shaft. A clamping mechanism is arranged on the outer peripheral side of the frame frame. The lifting mechanism includes a coupling (61), a bearing seat (62), a support platform (63), a buffer pad (64), a lifting guide rail (65), a linear bearing (66), a lifting cylinder (67), and a first limit switch (68). The stirring motor is installed on the support platform through a bracket. At the upper end of the platform, the output end of the stirring motor is connected to the telescopic stirring shaft through a coupling, the upper end of the telescopic stirring shaft is supported by a bearing seat, the buffer pad is installed on the upper end surface of the support platform through an adjustable screw and a nut, a lifting guide rail is installed on the support platform, a linear bearing is installed on the frame frame, the lifting guide rail is slidably connected to the linear bearing, a lifting cylinder is installed on the outer side of the frame frame, the upper end of the lifting cylinder is connected to the support platform, and the lower end is connected to the bottom of the frame frame, and the first limit switch is installed at the upper end of the frame frame; there are multiple buffer pads, lifting guide rails, linear bearings, and lifting cylinders.

2. A tobacco liquid mixing and stirring device according to claim 1, characterized in that: The clamping mechanism (8) is used to clamp and position the modulation material barrel that has entered into position. The clamping mechanism comprises a second limit switch (81), a positioning bracket (82), a rotating clamping cylinder (83), and a clamping bracket (84). The positioning bracket and the second limit switch are arranged on the rear side of the frame frame, the rotating clamping cylinder and the clamping bracket are arranged on the front side of the frame frame, the positioning bracket is mounted on the frame column of the frame frame through an adjustable screw and a nut, an arc block matching the outer circumference of the modulation material barrel is arranged at the end of the positioning bracket, the rotating clamping cylinder is mounted on the frame column, the output end of the rotating clamping cylinder is connected to the clamping bracket, and an arc block matching the outer circumference of the modulation material barrel is arranged at the end of the clamping bracket. The clamping bracket can be extended and rotated under the drive of the rotating clamping cylinder.

3. A tobacco liquid mixing and stirring device according to claim 2, characterized in that: The weighing table of the cart-type weighing scale measures the mass of the mixing barrel filled with liquid material, and at the same time carries and transports the mixing barrel and pushes it into the frame rack to stir the liquid material, so that it is convenient to drive in and out of the frame rack when spices are frequently added during the liquid material mixing process; the positioning bracket and the clamping bracket of the clamping mechanism match the outer circumference diameter of the mixing barrel to position and fix the mixing barrel; the rotating clamping cylinder is a single cylinder whose piston rod can realize a 90° rotation during the linear motion process.

4. A tobacco liquid mixing and stirring device according to claim 3, characterized in that: The coupling is matched with the bearing seat through an angular contact bearing. The stirring impeller adopts a spiral large blade design. The blade is provided with a guide hole. The guide hole runs through both sides of the blade, and the guide hole is a conical guide hole. The aperture on the convex arc side of the blade is large, and the aperture on the concave arc side is small, so that the stirring is faster and more uniform.

5. A tobacco liquid mixing and stirring device according to claim 4, characterized in that: The retractable stirring shaft is a pneumatically controlled retractable stirring shaft and is connected to a pneumatic control system.

6. A control method for a tobacco liquid mixing and stirring device, comprising a tobacco liquid mixing and stirring device as claimed in claim 4, wherein the pneumatic control system comprises an air source processing device, two-position three-way manual valves S0 and S5, a lifting cylinder control circuit, a clamping cylinder control circuit, a stirring motor control circuit, three-position five-way manual valves S6 and S8, first and second limit switches, a one-way throttle valve, a pilot one-way speed regulating valve, a lifting cylinder, and a rotary clamping cylinder. The compressed air source is filtered and pressure-adjusted by the air source processing device, and after entering the two-position three-way manual valve S0, it is divided into three output branches: Branch 1: Lifting cylinder control circuit: When the three-position five-way manual valve S6 is selected to enter the working position in the right position, the compressed air enters the rodless chamber of the lifting cylinder in the forward direction through the pilot one-way speed regulating valve to push the piston rod out, and the piston rod pushing out speed is adjusted by adjusting the one-way throttle valve at the exhaust port of the rod chamber; when the three-position five-way manual valve S6 is selected to enter the working position in the left position, the compressed air enters the rod chamber of the lifting cylinder in the forward direction through the one-way throttle valve to push the piston rod back, and then two states are output according to the working state of the second limit switch of the clamping control circuit: one is that when the modulation barrel enters the frame rack and touches the positioning bracket, the air circuit of the second limit switch for in-position detection is opened, and the compressed air enters the pilot one-way speed regulating valve as a pilot signal, and the piston rod retraction speed is adjusted by adjusting its one-way throttle valve; the second is that when the modulation barrel does not enter the frame rack or enters the state of not in place to touching the positioning bracket, the pilot one-way speed regulating valve closes the exhaust air circuit, and the piston rod cannot retract and remains in the extended state; Branch 2: Clamping cylinder control circuit: When the mixing barrel enters the frame frame and touches the positioning bracket, the air circuit of the second limit switch for in-place detection is opened, and the compressed air enters the middle position of the three-position five-way manual valve S8 through the second limit switch. When the right position is selected to enter the working position, the compressed air enters the rodless chamber of the rotary clamping cylinder in the forward direction through the one-way throttle valve, and the piston rod is pushed out horizontally for a certain distance and then rotated 90°, driving the clamping bracket to be released horizontally and rotated to the vertical state from the horizontal clamping state; on the contrary, when the left position is selected to enter the working position, the clamping bracket rotates from the vertical state to the horizontal state, and then retracts to the clamping state; Branch three: stirring motor control circuit: When the supporting platform of the lifting mechanism drops to the bottom position, it touches the first limit switch for in-position detection and the air circuit is opened. The two-position three-way manual valve S5 selects the open position, and the compressed air enters the stirring motor through the one-way throttle valve. The rotation speed of the stirring motor is adjusted by adjusting the one-way throttle valve.

7. The control method according to claim 6, characterized in that: The rodless chamber of the lifting cylinder in the lifting cylinder control circuit adopts a pilot one-way speed regulating valve to control the air flow discharge, and adopts the air source of the second limit switch for detecting the modulation barrel entering the frame rack as the pilot signal to ensure that when the lifting cylinder descends, the mixing impeller directly enters the modulation barrel; the rotating clamping cylinder air source of the clamping cylinder control circuit is connected in series with the second limit switch for detecting the modulation barrel entering the frame rack to prevent the clamping mechanism from being opened by mistake when the modulation barrel is not in place; the stirring motor air source of the stirring motor control circuit is connected in series with the first limit switch air circuit for detecting the support platform of the lifting mechanism set at the upper end of the frame rack to prevent the stirring motor from being turned on when the support platform is raised, thereby ensuring the safety of the stirring device.

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