Stirring device for coloring polymer particles

Abstract

The utility model relates to the technical field of high polymer material processing equipment, in particular to a polymer particle coloring stirring device which comprises a reaction kettle, a fixing frame is fixedly connected to the outer wall of the reaction kettle, a discharging mechanism is installed at the bottom of the reaction kettle, and a fixing mechanism is installed on the outer wall of the fixing frame. A material pumping machine is fixedly connected to the side wall of the fixing frame, a conveying pipe is fixedly connected to the output end of the material pumping machine, one end of the conveying pipe is fixedly connected to the inner wall of the reaction kettle, a discharging port is fixedly connected to the bottom of the reaction kettle, and the fixing mechanism comprises a fixing rod. The outer wall of the fixing rod is fixedly connected to the outer wall of the fixing frame, and the inner wall of the fixing rod is slidably connected with two connecting rods. The device has the beneficial effects that the charging bag is fixed by additionally arranging the fixing mechanism, so that the charging bag is conveniently fixed, and the situation that a worker needs to hold the charging bag by hand for discharging and receiving is avoided.

Description

Technical Field

[0001] This application relates to the field of polymer material processing equipment technology, and in particular to the design of a stirring device for coloring polymer particles. Background Technology

[0002] Polymer particle colorants are used to impart specific colors to materials to meet appearance design requirements. Colors can differentiate product functions and uses, such as warning colors to enhance safety; enhance product aesthetics and recognizability, helping brands differentiate themselves in the competitive market; expand application scenarios, adapting to diverse fields such as decoration and packaging; some colorants can also improve the light and heat resistance of materials, enhancing overall quality, thus possessing both practical and economic value in industrial production and the consumer market.

[0003] The polymer granule coloring mixing device uses a motor-driven stirring shaft to rotate, causing impellers to move in a circular motion within a closed or open mixing drum, ensuring thorough mixing of the polymer granules and colorant. The impeller design generates convection and shear forces, breaking up particle agglomerates and promoting uniform dispersion of the colorant. Some devices are equipped with heating functions to prevent high-melting-point polymers from clumping and ensure mixing accuracy. It is suitable for pre-processing in plastic granulation, injection molding, and blown film production, such as the production of colored packaging bags, toy parts, and appliance casings.

[0004] In existing technologies, some polymer particle coloring mixing devices often require workers to manually fill the processed material into the bag. This manual operation results in a loose seal between the bag opening and the filling port, leading to particle spillage or dust generation, which can pollute the workshop environment. Furthermore, the continuous manual support of the bag prevents other operations from being performed simultaneously, making it particularly time-consuming and labor-intensive, especially in mass production. Therefore, a polymer particle coloring mixing device is proposed. Utility Model Content

[0005] The purpose of this application is to provide a mixing device for coloring polymer particles, which aims to improve the problem of workers manually filling processed materials into bags when operating by hand, as the bag opening and the discharge port do not fit tightly, resulting in particle leakage or dust, which can easily cause environmental pollution in the workshop.

[0006] The mixing device for coloring polymer particles provided in this application adopts the following technical solution: A mixing device for coloring polymer particles includes a reaction vessel, a fixed frame is fixedly connected to the outer wall of the reaction vessel, a feeding mechanism is installed at the bottom of the reaction vessel, a fixed mechanism is installed on the outer wall of the fixed frame, a material extractor is fixedly connected to the side wall of the fixed frame, a transmission pipe is fixedly connected to the output end of the material extractor, one end of the transmission pipe is fixedly connected to the inner wall of the reaction vessel, and a discharge port is fixedly connected to the bottom of the reaction vessel;

[0007] The fixing mechanism includes a fixing rod, the outer wall of which is fixedly connected to the outer wall of the fixing frame. Two connecting rods are slidably connected to the inner wall of the fixing rod. A control plate is fixedly connected to the top of each of the two connecting rods. A clamping plate is fixedly connected to the bottom of each connecting rod. A limit component is installed on the inner wall of the fixing mechanism.

[0008] By adopting the above technical solution: the reactor is supported and fixed by a fixing frame, the bottom outlet is used for material discharge, the pump generates suction force on the inside of the reactor through the transmission pipe, which can suck the material on the surface of the feeding plate into the reactor for processing, the fixing mechanism drives the clamp plate one to move through the connecting rod, and cooperates with the clamp plate two to fix the filling bag, and the limiting component restricts the relative position of the clamp plate one and the clamp plate two to ensure the stability of the filling bag fixing process.

[0009] Preferably, the feeding mechanism includes a feeding plate, the inner wall of which is fixedly connected to the inner wall of the fixed frame, the inner wall of which is fixedly connected to a feeding port, and a distributor is provided at the bottom of the reactor.

[0010] By adopting the above technical solution, the feeding plate is used to carry the material to be processed. The feeding port connects the bottom of the reactor and the feeding plate. The distributor is set at the bottom of the reactor. When the material is discharged from the feeding port, it hits the surface of the distributor and is scattered onto the surface of the feeding plate, which makes it easier for the material to be sucked back into the reactor for circulation and stirring, thereby improving the uniformity of stirring.

[0011] Preferably, the limiting component includes a second clamping plate, a control post is slidably connected to the inner wall of the second clamping plate, a button is fixedly connected to one end of the control post, and a reset spring is sleeved on the outer wall of the control post.

[0012] By adopting the above technical solution, clamp plate two is connected to the button through the control column. Pressing the button can drive the control column to slide. The reset spring is sleeved on the outer wall of the control column. When the external force is removed, the reset spring provides a reset force to restore the control column and the button to their original positions, thereby realizing the control of the fixed state of clamp plate one and clamp plate two, which facilitates the disassembly and release of the filling bag.

[0013] Preferably, a sliding rod is fixedly connected to the outer wall of the reset spring, and the other end of the reset spring is fixedly connected to the outer wall of the sliding rod. The outer wall of the sliding rod is slidably connected to the inner wall of the clamping plate.

[0014] By adopting the above technical solution, the two ends of the reset spring are connected to the control column and the sliding rod respectively. When the control column slides, it drives the sliding rod to slide synchronously on the inner wall of the second clamping plate. The sliding rod acts on the triangular block through the top block to control the position of the triangular block, thereby controlling the locking state of the first clamping plate and the second clamping plate. The structure has strong linkage and is easy to operate.

[0015] Preferably, a square rod is fixedly connected to the bottom of the clamping plate, a limit rod is fixedly connected to the inner wall of the square rod, and an elastic spring is sleeved on the outer wall of the limit rod.

[0016] By adopting the above technical solution, the square rod at the bottom of the clamping plate moves with the clamping plate, the limiting rod limits the sliding direction of the triangular block, and the elastic spring is sleeved on the outer wall of the limiting rod. When the square rod drives the triangular block to move to the inner wall of the clamping plate, the elastic spring releases elastic potential energy to push the triangular block into the slot on the inner wall of the clamping plate, thereby realizing the snap-fit ​​and fixation of the clamping plate and the clamping plate, and improving the reliability of the filling bag fixation.

[0017] Preferably, a triangular block is fixedly connected to the other end of the elastic spring, and the inner wall of the triangular block is slidably connected to the outer wall of the limiting rod.

[0018] By adopting the above technical solution, the triangular block is connected to the square rod through the limiting rod. Under the action of the elastic spring, it can slide along the limiting rod. When the triangular block springs into the slot on the inner wall of the second clamping plate, the first clamping plate and the second clamping plate form a stable engagement to fix the material bag. When disassembling, the top block pushes the triangular block to compress the elastic spring and slides out of the slot along the limiting rod to release the engagement state. The structure is simple and easy to operate.

[0019] Preferably, the inside of the second clamping plate is detachably connected to a locking post, the top of the locking post is fixedly connected to the bottom of the first clamping plate, and the outer wall of the sliding rod is fixedly connected to a top block.

[0020] By adopting the above technical solution, the locking pin at the bottom of clamping plate one is detachably connected to clamping plate two. When clamping plate one moves downward, the locking pin is inserted into clamping plate two. With the locking of the triangular block and clamping plate two, the bag is double-fixed, improving the fixing effect. The top block on the sliding rod can push out the triangular block under the action of the control column, ensuring the smoothness of the bag release process.

[0021] Preferably, a drive motor is fixedly connected to the top of the reactor, a stirrer is fixedly connected to the drive end of the drive motor, and the bottom of the stirrer is rotatably connected to the top of the feeding plate.

[0022] By adopting the above technical solution, the drive motor is installed on the top of the reactor, and its drive end drives the agitator to rotate, which stirs the material in the reactor. The bottom of the agitator is rotatably connected to the top of the feeding plate to ensure the stability of the stirring process. After being stirred, the material is discharged from the discharge port, impacts the distributor and falls onto the feeding plate, realizing the circulation and stirring of the material and improving the coloring uniformity.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By pressing the control panel, the control panel causes the connecting rod to slide downwards, making clamp plate one contact clamp plate two. This causes the clamping post to clamp the bag into the interior of clamp plate two, thus fixing the bag in place. As the clamp plate moves downwards, the square rod moves the triangular block to the inner wall of clamp plate two. Then, the elastic spring releases its elastic potential energy, causing the triangular block to spring into the inner wall of clamp plate two, thus clamp plate two to hold the triangular block and fix the bag in place. This makes it easier to fix the bag and avoids the need for workers to hold the bag while unloading and receiving materials.

[0025] 2. By starting the feeder, the feeder will generate suction inside the reactor through the transmission pipe. At this time, the material to be processed is placed on the surface of the feeding plate. The material will be sucked into the inner wall of the reactor. Then the drive motor starts, which drives the agitator to stir the material inside the reactor. During the stirring process, material will gradually come out from the discharge port and collide with the surface of the distributor. The material will be broken up and fall onto the surface of the feeding plate for a second stirring process, which facilitates more uniform stirring of the material. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of a stirring device for coloring polymer particles according to the present invention;

[0027] Figure 2 This is a schematic diagram of the feed inlet of a stirring device for coloring polymer particles according to this utility model;

[0028] Figure 3 This is a schematic diagram of the control panel of a stirring device for coloring polymer particles according to the present invention.

[0029] Figure 4 for Figure 3 Enlarged view of point A in the image;

[0030] Figure 5 for Figure 3 Enlarged view of point B in the image;

[0031] Figure 6 This is a schematic diagram of the feed inlet of a stirring device for coloring polymer particles according to this utility model;

[0032] Explanation of reference numerals in the attached drawings: 1. Reactor; 2. Fixing frame; 3. Fixing mechanism; 31. Fixing rod; 32. Control panel; 33. Connecting rod; 34. Clamping plate one; 35. Control column; 36. Button; 37. Sliding rod; 38. Return spring; 39. Top block; 301. Limiting assembly; 3011. Triangular block; 3012. Elastic spring; 3013. Limiting rod; 3014. Square rod; 302. Locking column; 303. Clamping plate two; 4. Feeding mechanism; 41. Feeding plate; 42. Distributor; 43. Feeding port; 5. Agitator; 6. Drive motor; 7. Pump; 8. Transmission pipe; 9. Discharge port. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1 To be continued Figure 6 This application will be described in further detail below.

[0034] Example: A stirring device for coloring polymer particles, refer to Figures 1 to 3 The reactor includes a reactor 1, a fixed frame 2 fixedly connected to the outer wall of the reactor 1, the fixed frame 2 can stably support the reactor 1, a feeding mechanism 4 is installed at the bottom of the reactor 1, the feeding mechanism 4 can realize the discharge and reprocessing of materials, a fixed mechanism 3 is installed on the outer wall of the fixed frame 2, the fixed mechanism 3 can fix the material bag so that the material can be discharged from the material bag, a suction machine 7 is fixedly connected to the side wall of the fixed frame 2, the suction machine 7 can provide suction to realize the feeding of materials, a transmission pipe 8 is fixedly connected to the output end of the suction machine 7, the transmission pipe 8 is used to transmit materials, one end of the transmission pipe 8 is fixedly connected to the inner wall of the reactor 1 so as to suck the materials into the reactor 1, and a discharge port 9 is fixedly connected to the bottom of the reactor 1, the discharge port 9 is used for the output of materials when filling the material bag;

[0035] Specifically, the outer wall of the reactor 1 is stably supported by the fixing frame 2, and the bottom is equipped with a feeding mechanism 4 to realize the discharge and reprocessing of materials. The fixing frame 2 has a fixing mechanism 3 on its outer wall to fix the material bag so that the material can be discharged and filled into the bag. The side wall is equipped with a suction machine 7, whose output end is connected to the inner wall of the reactor 1 through a transmission pipe 8. It can provide suction to realize the feeding of materials and the transmission to the reactor 1. The discharge port 9 at the bottom of the reactor 1 is used for material output when filling the bag. The whole set of equipment can realize the processes of feeding, reaction and discharging into the bag.

[0036] Reference Figures 3 to 5The fixing mechanism 3 includes a fixing rod 31. The outer wall of the fixing rod 31 is fixedly connected to the outer wall of the fixing frame 2. The fixing rod 31 can support components such as connecting rods 33. Two connecting rods 33 are slidably connected to the inner wall of the fixing rod 31. The connecting rods 33 can slide up and down inside the fixing rod 31 to drive the clamping plate to move. Control plates 32 are fixedly connected to the top of the two connecting rods 33. Pressing the control plates 32 can drive the connecting rods 33 to slide. Clamping plate 34 is fixedly connected to the bottom of the connecting rods 33. Clamping plate 34 can move with the connecting rods 33 to move closer to or away from clamping plate 303. Limiting component 301 is installed on the inner wall of the fixing mechanism 3. Limiting component 301 is used to fix and release the filling bag by clamping plate 34 and clamping plate 303.

[0037] Specifically, the fixing mechanism 3 consists of a fixing rod 31 and related components. The outer wall of the fixing rod 31 is fixedly connected to the outer wall of the fixing frame 2, and can support components such as the connecting rod 33. Two connecting rods 33 are slidably connected to its inner wall. The connecting rods 33 can slide up and down to drive the clamping plate to move. The top of both connecting rods 33 is connected to a control plate 32. Pressing the control plate 32 can drive the connecting rod 33 to slide. The bottom is connected to a clamping plate 34, so that the clamping plate 34 moves closer to or away from the clamping plate 303 with the connecting rod 33. In addition, the inner wall of the fixing mechanism 3 is provided with a limiting component 301, which is used to fix and release the filling bag on the clamping plate 34 and the clamping plate 303.

[0038] The limiting component 301 includes a second clamping plate 303, which cooperates with the first clamping plate 34 to fix the filling bag. A control post 35 is slidably connected to the inner wall of the second clamping plate 303. The control post 35 can slide within the second clamping plate 303 to drive the related components to move. A button 36 is fixedly connected to one end of the control post 35. Pressing the button 36 can drive the control post 35 to slide. A reset spring 38 is sleeved on the outer wall of the control post 35. The reset spring 38 can reset the control post 35. A sliding rod 37 is fixedly connected to the outer wall of the reset spring 38. The sliding rod 37 moves with the control post 35. The other end of the reset spring 38 is fixedly connected to the outer wall of the sliding rod 37. The reset spring 38 can reset the sliding rod 37. The outer wall of the sliding rod 37 is slidably connected to the inner wall of the second clamping plate 303. The sliding rod 37 can slide within the second clamping plate 303 to drive the top block 39 to move.

[0039] Specifically, the limiting component 301 is based on the second clamping plate 303, which cooperates with the first clamping plate 34 to fix the filling bag. The inner wall of the second clamping plate 303 is slidably connected to the control column 35. One end of the control column 35 is connected to the button 36. Pressing the button 36 can drive the control column 35 to slide. The outer wall of the control column 35 is fitted with a return spring 38. The other end of the return spring 38 is fixedly connected to the sliding rod 37. The outer wall of the sliding rod 37 is slidably connected to the inner wall of the second clamping plate 303. When the control column 35 slides, it drives the return spring 38 and the sliding rod 37 to move. The sliding rod 37 can slide in the second clamping plate 303 to drive the top block 39 to move. The return spring 38 can reset the control column 35 and the sliding rod 37. Through the above structure, the functions of fixing and releasing the filling bag by the first clamping plate 34 and the second clamping plate 303 are realized.

[0040] A square rod 3014 is fixedly connected to the bottom of clamping plate 34. The square rod 3014 moves with clamping plate 34 to drive the triangular block 3011. A limiting rod 3013 is fixedly connected to the inner wall of the square rod 3014. The limiting rod 3013 can limit the sliding direction of the triangular block 3011. An elastic spring 3012 is sleeved on the outer wall of the limiting rod 3013. The elastic spring 3012 can provide elastic force to make the triangular block 3011 pop out. The other end of the elastic spring 3012 is fixedly connected to the triangular block 3011, which can be inserted into the clamping plate. The inner wall of clamping plate 303 is fixed, and the inner wall of triangular block 3011 is slidably connected to the outer wall of limiting rod 3013. Triangular block 3011 can slide along limiting rod 3013. Clamping plate 303 is detachably connected to a locking post 302. The locking post 302 can clamp the bag into clamping plate 303. The top of the locking post 302 is fixedly connected to the bottom of clamping plate 34. The locking post 302 moves with clamping plate 34 to clamp the bag. The outer wall of sliding rod 37 is fixedly connected to a top block 39. The top block 39 can push out triangular block 3011 to release the filling bag.

[0041] Specifically, a square rod 3014 is fixedly connected to the bottom of clamp 34. As clamp 34 moves, it drives the triangular block 3011 to move. A limiting rod 3013 is provided on the inner wall of the square rod 3014 to limit the sliding direction of the triangular block 3011. An elastic spring 3012 is sleeved on the limiting rod 3013, and the other end is connected to the triangular block 3011. The triangular block 3011 can slide along the limiting rod 3013 and be locked into the inner wall of clamp 303 for fixation. Clamp 303 is detachably connected to a locking post 302. Its top is connected to the bottom of clamp 34 and locks the bag as clamp 34 moves. The outer wall of the sliding rod 37 is connected to a top block 39, which can push out the triangular block 3011 to release the bag. Through the cooperation of the elastic spring 3012 and the top block 39, clamp 34 and clamp 303 can fix and release the bag.

[0042] Reference Figure 2 , Figure 3 and Figure 6The feeding mechanism 4 includes a feeding plate 41, which is used to carry materials and achieve re-stirring. The inner wall of the feeding plate 41 is fixedly connected to the inner wall of the fixed frame 2, which can support the feeding plate 41. The inner wall of the fixed frame 2 is fixedly connected to a feeding port 43, which is used to discharge materials from the reactor 1 to the feeding plate 41. A distributor 42 is provided at the bottom of the reactor 1, which can disperse the materials for uniform stirring. A drive motor 6 is fixedly connected to the top of the reactor 1, which can provide power to drive the agitator 5 to rotate. The drive end of the drive motor 6 is fixedly connected to the agitator 5, which can stir the materials. The bottom of the agitator 5 is rotatably connected to the top of the feeding plate 41, so that the agitator 5 can rotate stably to stir the materials.

[0043] Specifically, the feeding mechanism 4 mainly consists of a feeding plate 41 and related components. The feeding plate 41 is used to carry materials and achieve re-stirring. Its inner wall is fixedly connected to the inner wall of the fixed frame 2 and supported by the fixed frame 2. The inner wall of the fixed frame 2 is provided with a feeding port 43 for discharging materials from the reactor 1 to the feeding plate 41. A distributor 42 is installed at the bottom of the reactor 1 to disperse the materials for uniform stirring. The top is fixedly connected to a drive motor 6, whose drive end is connected to an agitator 5, which can stir the materials. The bottom of the agitator 5 is rotatably connected to the top of the feeding plate 41 to ensure stability during stirring. The entire feeding mechanism 4, through the cooperation of the distributor 42, the drive motor 6 and the agitator 5, realizes the function of dispersing and uniformly stirring the materials after they are discharged from the reactor 1.

[0044] Working principle: When it is necessary to fill the processed material on the inner wall of the reactor 1 into a bag through the discharge port 9, the bag is placed between clamping plate 34 and clamping plate 303. Then, the control plate 32 is pressed, causing the connecting rod 33 to slide downwards. At this time, clamping plate 34 and clamping plate 303 come into contact, so that the clamping post 302 clamps the bag into the interior of clamping plate 303, thereby fixing the bag. Then, as clamping plate 34 moves downwards, the square rod 3014 drives the triangular block 3011 to move to clamping plate 302. The inner wall of clamp 303 is then opened, and the elastic spring 3012 releases its elastic potential energy to push the triangular block 3011 into the inner wall of clamp 303, thereby making clamp 303 lock the triangular block 3011 and fix the bag in place. When disassembly is required, the button 36 is pressed. The pressing of the button 36 causes the control column 35 to slide, and the sliding of the control column 35 causes the sliding rod 37 to slide inside, thereby causing the top block 39 to slide inside clamp 303 and push the triangular block 3011 out, thus releasing the bag.

[0045] When materials need to be processed and fed, the feeder 7 is started. The feeder 7 will generate suction force on the inside of the reactor 1 through the transmission pipe 8. The material to be processed is placed on the surface of the feeding plate 41. The material is sucked into the inner wall of the reactor 1. Then the drive motor 6 is started, which drives the agitator 5 to stir the material inside the reactor 1. During the stirring process, material will gradually come out from the discharge port 43. The material will hit the surface of the distributor 42 and be broken up. Then the material will fall on the surface of the feeding plate 41 for a second stirring process, which makes it easier to stir the material more evenly.

[0046] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A stirring device for coloring polymer particles, comprising a reaction vessel (1), characterized in that, A fixed frame (2) is fixedly connected to the outer wall of the reactor (1), a feeding mechanism (4) is installed at the bottom of the reactor (1), a fixed mechanism (3) is installed on the outer wall of the fixed frame (2), a material extractor (7) is fixedly connected to the side wall of the fixed frame (2), a transmission pipe (8) is fixedly connected to the output end of the material extractor (7), one end of the transmission pipe (8) is fixedly connected to the inner wall of the reactor (1), and a discharge port (9) is fixedly connected to the bottom of the reactor (1). The fixing mechanism (3) includes a fixing rod (31), the outer wall of the fixing rod (31) is fixedly connected to the outer wall of the fixing frame (2), the inner wall of the fixing rod (31) is slidably connected to two connecting rods (33), the top of the two connecting rods (33) is fixedly connected to a control plate (32), the bottom of the connecting rods (33) is fixedly connected to a clamping plate (34), and the inner wall of the fixing mechanism (3) is equipped with a limit assembly (301).

2. The stirring device for coloring polymer particles according to claim 1, characterized in that, The feeding mechanism (4) includes a feeding plate (41), the inner wall of the feeding plate (41) is fixedly connected to the inner wall of the fixed frame (2), the inner wall of the fixed frame (2) is fixedly connected to a feeding port (43), and a distributor (42) is provided at the bottom of the reactor (1).

3. The stirring device for coloring polymer particles according to claim 1, characterized in that, The limiting component (301) includes a clamping plate (303), a control post (35) is slidably connected to the inner wall of the clamping plate (303), a button (36) is fixedly connected to one end of the control post (35), and a reset spring (38) is sleeved on the outer wall of the control post (35).

4. The stirring device for coloring polymer particles according to claim 3, characterized in that, The outer wall of the return spring (38) is fixedly connected to a sliding rod (37), and the other end of the return spring (38) is fixedly connected to the outer wall of the sliding rod (37). The outer wall of the sliding rod (37) is slidably connected to the inner wall of the clamping plate (303).

5. The stirring device for coloring polymer particles according to claim 4, characterized in that, A square rod (3014) is fixedly connected to the bottom of the clamping plate (34), and a limiting rod (3013) is fixedly connected to the inner wall of the square rod (3014). An elastic spring (3012) is sleeved on the outer wall of the limiting rod (3013).

6. The stirring device for coloring polymer particles according to claim 5, characterized in that, The other end of the elastic spring (3012) is fixedly connected to a triangular block (3011), and the inner wall of the triangular block (3011) is slidably connected to the outer wall of the limiting rod (3013).

7. The stirring device for coloring polymer particles according to claim 6, characterized in that, The clamping plate 2 (303) is detachably connected to a locking post (302), the top of the locking post (302) is fixedly connected to the bottom of the clamping plate 1 (34), and the outer wall of the sliding rod (37) is fixedly connected to a top block (39).

8. The stirring device for coloring polymer particles according to claim 2, characterized in that, The top of the reactor (1) is fixedly connected to a drive motor (6), and the drive end of the drive motor (6) is fixedly connected to a stirrer (5). The bottom of the stirrer (5) is rotatably connected to the top of the feeding plate (41).

Images