Color master batch adding device

Abstract

The utility model provides a color master batch adding device, which relates to the field of chemical fiber production and comprises a mixing tank and a rotating body, the rotating body is rotatably arranged in the mixing tank; the rotating body is hollow and the top is open; the top of the rotating body is close to the top of the mixing tank; a plurality of first outlets which are uniformly distributed are formed in the rotating body; spiral blades are arranged on the periphery of the rotating body; the edge of the spiral blade is close to the inner wall of the mixing tank; a first inlet is formed in the top of the mixing tank; the first inlet is positioned above the rotating body; a second inlet is formed in the side wall of the mixing tank; the second inlet is tangent to the inner wall of the mixing tank; a second outlet is formed in the bottom of the mixing tank. The main material slice injection device can solve the problem that the main material slice injection rate is not accurate due to the fact that a color master batch injection pipe can shield a channel where part of main material slices enter when color master batches are injected into the main material slices in the prior art, the injection proportion of the main material slices and the color master batch slices in unit time is maintained, and the injection efficiency is improved. And the color master batch slices and the main material slices are premixed.

Description

Technical Field

[0001] The utility model relates to the field of chemical fiber production, in particular to a masterbatch adding device. Background Art

[0002] In the process of preparing colored monofilaments, it is necessary to add masterbatch slices to main material slices, and then melt-mix the mixture of masterbatch slices and main material slices, so that the main material slices are dyed with the color of the masterbatch.

[0003] However, in the process of adding the masterbatch into the main material slices, since the flow rate of the main material slices is large and the flow rate is fast, while the flow rate of the masterbatch slices is small, when the main material slices flow through the area near the bottom of the masterbatch injection tube, they will occupy the space for the flow of the masterbatch slices, increase the resistance to the outflow of the masterbatch slices, and make the injection amount of the masterbatch slices less than the set value, and even cause the masterbatch slices to be unable to be injected smoothly; with the accumulation of the masterbatch slices retained in the masterbatch injection tube, the overall gravity of the masterbatch slices gradually increases. When the overall gravity increases to a level sufficient to overcome the flow resistance of the masterbatch slices, the masterbatch slices will instantly enter the main material slices, causing a surge in the injection amount of the masterbatch slices, and the injection amount of the masterbatch slices is poorly stable.

[0004] In this regard, the Chinese patent application No. 201921810198.4 discloses a masterbatch injection structure for pre-spinning dyeing, which includes a main material injection tube and a masterbatch injection tube; the main material injection tube is arranged in a vertical direction; one of the tube openings of the masterbatch injection tube is a masterbatch injection port; the masterbatch injection tube includes one end of the masterbatch injection port, which obliquely penetrates through one side wall of the main material injection tube, the masterbatch injection port is located inside the main material injection tube, and the masterbatch injection port is located on the axis of the main material injection tube; a shielding portion is provided on the masterbatch injection tube; the patent provides a shielding portion, and uses the shielding portion to cover the upper area of ​​the masterbatch injection port, which can effectively intercept the main material slices falling near the masterbatch injection port, reduce the resistance of the masterbatch slices to flow out, so that the masterbatch slices can enter the main material injection tube from the masterbatch injection port in a timely and rapid manner, avoiding the injection amount of the masterbatch slices from being small or large.

[0005] However, when the masterbatch injection structure provided by the patent is used, the masterbatch injection tube extends into the main material injection tube, and the masterbatch injection tube will block the channel for some main material slices to enter, making the injection rate of the main material slices inaccurate, and unable to maintain the injection ratio of the main material slices to the masterbatch slices per unit time, affecting the production quality of the monofilament; at the same time, the masterbatch injection tube can only inject the masterbatch slices into a single position, and it is impossible to pre-mix the masterbatch slices and the main material slices evenly. In the subsequent production, the added masterbatch slices and the main material slices still need to be mixed and stirred, which reduces the production efficiency of the colored monofilament. Utility Model Content

[0006] In response to the above-mentioned problems, the utility model provides a masterbatch adding device, which can solve the problem in the prior art that when injecting masterbatch into the main material slices, the masterbatch injection tube will block the channel for part of the main material slices to enter, making the injection rate of the main material slices inaccurate, and can maintain the injection ratio of the main material slices to the masterbatch slices per unit time, and pre-mix the masterbatch slices and the main material slices.

[0007] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0008] The utility model provides a masterbatch adding device, comprising a mixing tank and a rotator; the rotator can be rotatably arranged inside the mixing tank; the interior of the rotator is hollow; the top of the rotator is open; the top of the rotator is close to the top of the mixing tank; a plurality of evenly distributed first outlets are provided on the rotator; a spiral blade is provided on the periphery of the rotator; the edge of the spiral blade is close to the inner wall of the mixing tank; a first inlet for inputting masterbatch slices is provided on the top of the mixing tank; the first inlet is located above the rotator; the first inlet is connected to the rotator; a second inlet for inputting main material slices is provided on the side wall of the mixing tank; the cross section of the mixing tank is circular; the second inlet is tangent to the inner wall of the mixing tank; the second inlet is higher than the spiral blade; a second outlet for outputting the mixture of masterbatch slices and main material slices is provided at the bottom of the mixing tank.

[0009] The masterbatch adding device provided by the utility model is preferably provided with a first motor outside the mixing tank; the output shaft of the first motor is vertically downward; a rotating shaft is fixed on the output shaft of the first motor; the rotating shaft is vertically arranged; one end of the rotating shaft is fixed to the output shaft of the first motor, and the other end passes through the top of the mixing tank, extends into the interior of the rotating body, and is fixed to the bottom of the rotating body; the rotating shaft is rotatably fixed to the top of the mixing tank;

[0010] A lifting mechanism is provided in the swivel; the lifting mechanism comprises a lifting plate, a screw rod and a second motor; the lifting plate, the screw rod and the second motor are all located inside the swivel; the screw rod is vertically arranged; the top of the screw rod is fixed to the top of the mixing tank; the bottom of the screw rod is fixed to the output shaft of the second motor; the output shaft of the second motor is arranged vertically upward; the second motor is fixed to the bottom of the swivel; the lifting plate is horizontally arranged; the rotating shaft passes through the lifting plate; the rotating shaft is rotatable in the lifting plate; the lifting plate is fixed to the nut of the screw rod; the edge of the lifting plate is close to the inner wall of the swivel.

[0011] The masterbatch adding device provided by the utility model is preferably provided with a plurality of side wall cavities in the side wall of the rotating body; the side wall cavities pass through the first outlet; the vertical section of the side wall cavities can cover the vertical section of the first outlet; the cross section of the first outlet can cover the cross section of the side wall cavities;

[0012] A slidable baffle is arranged in the inner cavity of the side wall; an iron block is arranged inside the baffle; an electromagnet is arranged in the lifting plate; when the lifting plate is lower than the first outlet, the first outlet is unobstructed; when the lifting plate is higher than the first outlet, the first outlet is covered by the baffle.

[0013] The masterbatch adding device provided by the utility model is preferably provided with a stirring shaft at the bottom of the rotating body; the axis of the stirring shaft coincides with the axis of the rotating body; a plurality of stirring plates are provided at the bottom of the stirring shaft; all the stirring plates are distributed in a circular array around the stirring shaft; the stirring plates are arranged vertically;

[0014] The mixing tank comprises a mixing area and a collection area; the collection area is located below the mixing area; the mixing area is in a hollow cylindrical shape; the bottom of the mixing area is open; the collection area is in a funnel shape; the cross section of the top of the collection area is equal to the cross section of the bottom of the mixing area;

[0015] The stirring plate is located in the material gathering area; the stirring plate is located above the second outlet.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] The masterbatch adding device provided by the utility model has a first inlet for inputting masterbatch slices to facilitate the entry of masterbatch slices into the rotating body during the rotation of the rotating body, and the first inlet is located above the rotating body, and the top of the rotating body is open. When the rotating body rotates around the axis of the rotating body, the masterbatch slices can continuously enter the rotating body from the first inlet, and the entrance of the masterbatch slices and the landing point inside the rotating body are on the same vertical line, so as to avoid the masterbatch slices being missed to the outside of the rotating body when the rotating body rotates; a plurality of evenly distributed first outlets are opened on the rotating body, and the masterbatch slices are continuously and evenly spread from the first outlets to the surrounding spiral blades through the constant self-rotation speed of the rotating body, and are mixed with the main material slices rotating down from the spiral blades, so as to achieve even distribution of the masterbatch slices; in order to keep the main material slices away from the rotating body, a second inlet for inputting the main material slices is opened on the side wall of the mixing tank, and the cross section of the mixing tank is circular, and the second inlet is tangent to the inner wall of the mixing tank, and the main material slices are fed to the rotating body at an initial speed. The main material slices can enter the second inlet at a certain degree, and can rotate along the circular inner wall of the mixing tank, and the self-rotation of the rotating body drives the spiral blades to rotate, thereby reducing the possibility of the main material slices approaching the rotating body, thereby reducing the possibility of the main material slices blocking the first outlet, and preventing the masterbatch slices from being injected at an inaccurate rate. At the same time, the second inlet is made higher than the spiral blades, so that the main material slices that have just entered the mixing tank can rotate naturally downward along the inside of the mixing tank and fall onto the spiral blades, thereby preventing the main material slices from being affected by the spiral blades, interfering with the rotational movement rate of the main material slices and the distribution on the spiral blades, and avoiding the main material slices from being injected at an inaccurate rate. This is combined with the uniform distribution of the masterbatch slices, thereby maintaining the injection ratio of the main material slices to the masterbatch slices per unit time; at the same time, the mixture of the main material slices and the masterbatch slices is affected by the rotation of the spiral blades, and the main material slices and the masterbatch slices can be pre-mixed, saving the steps of mixing and stirring the added masterbatch slices and the main material slices in subsequent production, thereby improving the production efficiency of colored monofilaments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention and its features, appearance and advantages will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings. The same reference numerals indicate the same parts in all the drawings. The drawings are not drawn to scale, but the emphasis is on illustrating the subject matter of the present invention.

[0019] Figure 1 It is a three-dimensional structural schematic diagram of a masterbatch adding device provided in Example 1 of the utility model.

[0020] Figure 2 It is a schematic cross-sectional structure diagram of a masterbatch adding device provided in Example 1 of the utility model.

[0021] Figure 3 yes Figure 2 Enlarged schematic diagram of some structures. DETAILED DESCRIPTION

[0022] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0023] Embodiment 1:

[0024] like Figures 1-2 As shown, a masterbatch adding device provided by Example 1 of the utility model comprises a mixing tank 1 and a rotator 2; the rotator 2 can be rotatably arranged inside the mixing tank 1; the interior of the rotator 2 is hollow; the top of the rotator 2 is open; the top of the rotator 2 is close to the top of the mixing tank 1; a plurality of evenly distributed first outlets 21 are provided on the rotator 2; a spiral blade 3 is provided on the periphery of the rotator 2; the edge of the spiral blade 3 is close to the inner wall of the mixing tank 1; a first inlet 11 for inputting masterbatch slices is provided on the top of the mixing tank 1; the first inlet 11 is located above the rotator 2; the first inlet 11 is connected to the rotator 2; a second inlet 12 for inputting main material slices is provided on the side wall of the mixing tank 1; the cross section of the mixing tank 1 is circular; the second inlet 12 is tangent to the inner wall of the mixing tank 1; the second inlet 12 is higher than the spiral blade 3; a second outlet 13 for outputting the mixture of the masterbatch slices and the main material slices is provided at the bottom of the mixing tank 1.

[0025] When the masterbatch adding device provided in Example 1 of the utility model is used, the masterbatch slices are input into the first inlet 11, and the main material slices are input into the second inlet 12 at the same time; at this time, the rotor 2 is self-rotated about the axis of the rotor 2, and the spiral blades 3 arranged on the periphery of the rotor 2 also rotate accordingly, and the masterbatch slices in the rotor 2 are moved toward the side wall of the rotor 2 by the self-rotation force, and leave the inside of the rotor 2 through the first outlet 21 opened on the rotor 2, and the masterbatch slices are evenly distributed on the spiral blades 3 by the force of the rotation of the rotor 2, and follow the spiral blades 3. The slice 3 continues to move downward; the main material slice enters the mixing tank 1 from the second inlet 12 at an initial velocity, and enters the mixing tank 1 along the second inlet 12 tangent to the inner wall of the mixing tank 1. The main material slice is affected by the rotation of the spiral blade 3, and follows the spiral blade 3 to rotate downward along the inner wall of the mixing tank 1. The masterbatch slice is evenly distributed on the spiral blade 3 by the force of the rotation of the rotor 2. While rotating downward, the masterbatch slice is mixed with the main material slice; the mixture of the masterbatch slice and the main material slice leaves from the second outlet 13.

[0026] The masterbatch adding device provided in Example 1 of the utility model is provided with a first inlet 11 for inputting masterbatch slices at the top of the mixing tank 1 in order to facilitate the masterbatch slices to enter the rotating body 2 during the rotating process of the rotating body 2. The first inlet 11 is located above the rotating body 2, and the top of the rotating body 2 is open. When the rotating body 2 rotates around the axis of the rotating body 2, the masterbatch slices can continuously enter the rotating body 2 from the first inlet 11. The entrance of the masterbatch slices and the landing point inside the rotating body 2 are on the same vertical line, so as to avoid the masterbatch slices from being missed to the outside of the rotating body 2 when the rotating body 2 rotates. The rotor 2 is provided with a plurality of evenly distributed first outlets 21. The masterbatch slices are continuously and evenly spread from the first outlets 21 to the surrounding spiral blades 3 at a constant self-rotation speed of the rotor 2, and are mixed with the main material slices rotating down from the spiral blades 3 to achieve even distribution of the masterbatch slices. In order to keep the main material slices away from the rotor 2, a second inlet 12 for inputting the main material slices is provided on the side wall of the mixing tank 1. The cross section of the mixing tank 1 is circular, and the second inlet 12 is tangent to the inner wall of the mixing tank 1. The main material slices are initially The main material slices can rotate along the circular inner wall of the mixing tank 1, and the self-rotation of the swivel 2 drives the spiral blade 3 to rotate, thereby reducing the possibility of the main material slices approaching the swivel 2, and further reducing the possibility of the main material slices blocking the first outlet 21, preventing the masterbatch slices from being injected at an inaccurate rate. At the same time, the second inlet 12 is made higher than the spiral blade 3, so that the main material slices that have just entered the mixing tank 1 can rotate naturally downward along the inside of the mixing tank 1 and fall onto the spiral blade 3, preventing the main material slices from being affected by the spiral blade 3 and interfering with the rotation of the main material slices. The rotation rate and the distribution on the spiral blade 3 can avoid inaccurate injection rate of the main material slices, which can be combined with the uniform distribution of the masterbatch slices to maintain the injection ratio of the main material slices to the masterbatch slices per unit time; at the same time, the mixture of the main material slices and the masterbatch slices is affected by the rotation of the spiral blade 3, and the mixture is rubbed and squeezed on the inner wall of the mixing tank 1, so that the main material slices and the masterbatch slices can be pre-mixed, saving the step of mixing and stirring the added masterbatch slices and the main material slices in subsequent production, thereby improving the production efficiency of colored monofilaments.

[0027] like Figure 2As shown, the masterbatch adding device provided in Example 1 of the utility model is preferably provided with a first motor 4 outside the mixing tank 1 in order to rotate the rotator 2, and the first motor 4 is used to drive the rotator 2 to rotate; the output shaft of the first motor 4 is vertically downward, and a rotating shaft 41 is fixed on the output shaft of the first motor 4, and the rotating shaft 41 is vertically arranged, one end of the rotating shaft 41 is fixed to the output shaft of the first motor 4, and the other end passes through the top of the mixing tank 1, extends into the interior of the rotator 2, and is fixed to the bottom of the rotator 2, and the output shaft is rotated by the first motor 4 to rotate the rotating shaft 41 fixed on the output shaft of the first motor 4, thereby driving the rotator 2 fixed to the rotating shaft 41 to rotate; at the same time, the rotating shaft 41 is rotatably fixed to the top of the mixing tank 1, so as to prevent the mixing tank 1 from generating friction with the rotating shaft 41, so that the rotating shaft 41 cannot output rotational power normally;

[0028] Due to the constant friction and compression between the main material slices and the inner wall of the mixing tank 1, some of the main material slices will be close to the swivel 2 at a position near the bottom of the swivel 2. In order to avoid the main material slices outside the swivel 2 from flowing too fast and thus blocking the first outlet 21, and causing the masterbatch slices to be unable to be discharged from the first outlet 21 at a normal flow rate, a lifting mechanism 22 is provided in the swivel 2. The lifting mechanism 22 includes a lifting plate 221, a screw rod 222 and a second motor 223. The lifting plate 221, the screw rod 222 and the second motor 223 are all located inside the swivel 2. When the masterbatch slices cannot be discharged from the swivel 2 or the speed at which the masterbatch slices are discharged from the swivel 2 is reduced, the lifting mechanism 22 is used to select the first outlet 21 from which the masterbatch slices leave. The lifting plate 221 will stay at the first outlet 21 that is highly suitable and not blocked. The centrifugal force generated by the rotation of the swivel 2 causes the masterbatch slices on the lifting plate 221 to leave the swivel 2 from the selected first outlet 21. The speed at which the masterbatch slices leave the swivel 2 can be calculated and determined by a photoelectric sensor.

[0029] In order to realize the function of controlling the lifting plate 221 to rise and fall, the screw rod 222 is set vertically, the top of the screw rod 222 is fixed to the top of the mixing tank 1, the bottom of the screw rod 222 is fixed to the output shaft of the second motor 223, the output shaft of the second motor 223 is set vertically upward, the second motor 223 is fixed to the bottom of the swivel 2, the lifting plate 221 is set horizontally, the lifting plate 221 is fixed to the nut of the screw rod 222, and the nut on the screw rod 222 is controlled by the second motor 223 to move up and down, thereby controlling the lifting plate 221. The descending plate 221 rises and falls; at the same time, the rotating shaft 41 passes through the lifting plate 221, and the rotating shaft 41 can rotate in the lifting plate 221, which can avoid friction between the lifting plate 221 and the rotating shaft 41, and avoid affecting the lifting function of the lifting plate 221 and the rotation function of the rotating shaft 41; in addition, in order to allow the masterbatch slices to move with the lifting plate 221, the edge of the lifting plate 221 is made close to the inner wall of the swivel 2, and the masterbatch slices cannot escape from the gap between the edge of the lifting plate 221 and the inner wall of the swivel 2.

[0030] like Figure 3 As shown, the masterbatch adding device provided in Example 1 of the utility model, preferably, when the lifting plate 221 rises, the lifting plate 221 will rise together with the masterbatch slices. At this time, if part of the main material slices are close to the rotating body 2, and the masterbatch slices do not leave from the first outlet 21 at the bottom, the main material slices are easy to enter the interior of the rotating body 2 from the first outlet 21 at the bottom. In order to prevent the main material slices from flowing back into the rotating body 2 from the first outlet 21 at the bottom, a shielding device needs to be provided for the first outlet 21;

[0031] In order to prevent the shielding device from affecting the lifting function of the lifting plate 221 inside the swivel 2, a plurality of side wall cavities 23 are arranged in the side wall of the swivel 2. The side wall cavities 23 pass through the first outlet 21. The vertical section of the side wall cavities 23 can cover the vertical section of the first outlet 21. The cross section of the first outlet 21 can cover the cross section of the side wall cavities 23. A slidable baffle 231 is arranged in the side wall cavities 23. The baffle 231 can slide up and down in the side wall cavities 23. An iron block is arranged inside the baffle 231. An electromagnet is arranged inside the lifting plate 221. When the electromagnet inside the lifting plate 221 is energized, the baffle 231 can follow the lifting of the lifting plate 221. When the lifting plate 221 is lower than the first outlet 21, the baffle 231 retracts into the side wall cavities 23 and is located below the first outlet 21. At this time, the first outlet 21 is unobstructed; when the lifting plate 221 is higher than the first outlet 21, the electromagnet in the lifting plate 221 will attract the iron block in the baffle 231. When the lifting plate 221 rises, the first outlet 21 below the lifting plate 221 will be covered by the baffle 231 attracted by the electromagnet in the lifting plate 221. At this time, the lifting plate 221 is at a first outlet 21 that is suitable in height and not blocked. The masterbatch slices can leave the first outlet 21 at a uniform speed. The first outlet 21 below the lifting plate 221 will be blocked by the baffle 231. At this time, the main material slices close to the rotor 2 cannot enter the inside of the rotor 2 from the first outlet 21 below the lifting plate 221, thereby avoiding the main material slices affecting the normal operation of the lifting mechanism 22, while reducing the possibility of the main material slices being lost, and maintaining the injection ratio of the main material slices to the masterbatch slices per unit time.

[0032] like Figures 1-2 As shown, the masterbatch adding device provided in Example 1 of the utility model is preferably provided with a stirring shaft 5 at the bottom of the rotating body 2 in order to make the main material slices and the masterbatch slices be better mixed, the axis of the stirring shaft 5 coincides with the axis of the rotating body 2, and a plurality of stirring plates 51 are provided at the bottom of the stirring shaft 5, and the main material slices and the masterbatch slices are stirred and mixed by the stirring plates 51, so that the masterbatch slices are more evenly distributed in the main material slices; in order to produce a better stirring effect, all the stirring plates 51 are arranged in a circular array around the stirring shaft 5, and at the same time, the stirring plates 51 are arranged vertically so that the stirring plates 51 can contact more slices, thereby improving the mixing efficiency of the main material slices and the masterbatch slices;

[0033] In order to better mix the main material slices and the masterbatch slices, the mixing tank 1 is provided with a mixing area 14 and an aggregate area 15. The aggregate area 15 is located below the mixing area 14. The mixing area 14 is in the shape of a hollow cylinder and is used for preliminarily mixing the main material slices and the masterbatch slices. The bottom of the mixing area 14 is open, so that the main material slices and the masterbatch slices can enter the aggregate area 15 for further mixing. The aggregate area 15 is in the shape of a funnel, and the cross-section of the top of the aggregate area 15 is the same as the cross-section of the bottom of the mixing area 14, so that the main material slices and the masterbatch slices preliminarily mixed in the mixing area 14 can be concentrated in one place. The stirring plate 51 is located in the aggregate area 15, so that the stirring plate 51 can better contact with the main material slices and the masterbatch slices, thereby producing a better stirring effect; further, in order to prevent the stirring plate 51 from interfering with the discharge of the slices after stirring, the stirring plate 51 is located above the second outlet 13.

[0034] In summary, the masterbatch adding device provided by the utility model can solve the problem in the prior art that when injecting masterbatch into the main material slices, the masterbatch injection tube will block the channel for part of the main material slices to enter, making the injection rate of the main material slices inaccurate, and can maintain the injection ratio of the main material slices and the masterbatch per unit time, and pre-mix the masterbatch slices and the main material slices.

[0035] Those skilled in the art should understand that those skilled in the art can implement the above-mentioned variations by combining the prior art and the above-mentioned embodiments, which will not be described in detail here. Such variations do not affect the essential content of the present utility model, and will not be described in detail here.

[0036] The above describes the preferred embodiments of the utility model. It should be understood that the utility model is not limited to the above-mentioned specific embodiments, and the devices and structures that are not described in detail should be understood to be implemented in a common manner in the art; any technician familiar with the art can make many possible changes and modifications without departing from the technical solution of the utility model, or modify them into equivalent embodiments with equivalent changes, which does not affect the essential content of the utility model. Therefore, any simple modification, equivalent change and modification made to the above embodiments based on the technical essence of the utility model without departing from the content of the technical solution of the utility model still falls within the scope of protection of the technical solution of the utility model.

Claims

1. A masterbatch adding device, It is characterized in that It includes a mixing tank and a swivel; the swivel can be rotatably arranged inside the mixing tank; the interior of the swivel is hollow; the top of the swivel is open; the top of the swivel is close to the top of the mixing tank; a plurality of evenly distributed first outlets are provided on the swivel; a spiral blade is provided on the periphery of the swivel; the edge of the spiral blade is close to the inner wall of the mixing tank; a first inlet for inputting masterbatch slices is provided on the top of the mixing tank; the first inlet is located above the swivel; the first inlet is connected to the swivel; a second inlet for inputting main material slices is provided on the side wall of the mixing tank; the cross-section of the mixing tank is circular; the second inlet is tangent to the inner wall of the mixing tank; the second inlet is higher than the spiral blade; a second outlet for outputting the mixture of masterbatch slices and main material slices is provided at the bottom of the mixing tank.

2. The masterbatch adding device according to claim 1, It is characterized in that A first motor is arranged outside the mixing tank; the output shaft of the first motor is vertically downward; a rotating shaft is fixed on the output shaft of the first motor; the rotating shaft is arranged vertically; one end of the rotating shaft is fixed to the output shaft of the first motor, and the other end passes through the top of the mixing tank, extends into the interior of the rotating body, and is fixed to the bottom of the rotating body; the rotating shaft is rotatably fixed to the top of the mixing tank; A lifting mechanism is provided in the swivel; the lifting mechanism includes a lifting plate, a screw rod and a second motor; the lifting plate, the screw rod and the second motor are all located inside the swivel; the screw rod is vertically arranged; the top of the screw rod is fixed to the top of the mixing tank; the bottom of the screw rod is fixed to the output shaft of the second motor; the output shaft of the second motor is vertically arranged upward; the second motor is fixed to the bottom of the swivel; the lifting plate is horizontally arranged; the rotating shaft passes through the lifting plate; the rotating shaft is rotatable in the lifting plate; the lifting plate is fixed to the nut of the screw rod; the edge of the lifting plate is close to the inner wall of the swivel.

3. The masterbatch adding device as claimed in claim 2, It is characterized in that A plurality of side wall cavities are arranged in the side wall of the rotating body; the side wall cavities pass through the first outlet; the vertical section of the side wall cavities can cover the vertical section of the first outlet; the cross section of the first outlet can cover the cross section of the side wall cavities; A slidable baffle is arranged in the inner cavity of the side wall; an iron block is arranged inside the baffle; an electromagnet is arranged in the lifting plate; when the lifting plate is lower than the first outlet, the first outlet is unobstructed; when the lifting plate is higher than the first outlet, the first outlet is covered by the baffle.

4. The masterbatch adding device according to claim 1, It is characterized in that A stirring shaft is arranged at the bottom of the rotating body; the axis of the stirring shaft coincides with the axis of the rotating body; a plurality of stirring plates are arranged at the bottom of the stirring shaft; all the stirring plates are arranged in a circular array around the stirring shaft; the stirring plates are arranged vertically; The mixing tank comprises a mixing area and a collection area; the collection area is located below the mixing area; the mixing area is in a hollow cylindrical shape; the bottom of the mixing area is open; the collection area is in a funnel shape; the cross section of the top of the collection area is equal to the cross section of the bottom of the mixing area; The stirring plate is located in the material gathering area; the stirring plate is located above the second outlet.

Images