A feeding device for foaming material masterbatch

Abstract

The present invention provides a feeding device for foaming material masterbatch, belonging to the technical field of production and processing of foaming materials. The present invention is a feeding device for foaming material masterbatch, which includes a feed hopper, a material leveling device, a shunt device, and an aggregate device arranged from top to bottom. The material leveling device includes a material leveling box and a stirring member. The bottom of the material leveling box is provided with a receiving groove with a circular arc cross-section, and a plurality of discharge holes are opened on the receiving groove; the shunt device includes a shunt box, a feed hole opened on the shunt box and facing the discharge hole, and an aggregate bag. The shunt device further includes a plurality of heavy balls and elastic connectors, and the heavy balls can squeeze the aggregate bag; the aggregate device includes a plurality of aggregate hoppers that can face the opening. The feeding speed of the device of the present invention is uniform, without causing local blockage, and the feeding speed can be doubled when feeding the masterbatch. The feeding speed is controllable and the feeding amount is uniform. The residual masterbatch in the aggregate bag can be avoided through the collision of the heavy balls.

Description

Technical Field

[0001] The present invention belongs to the technical field of production and processing of foaming materials, and particularly relates to a feeding device for foaming material masterbatch. Background Art

[0002] Foaming materials are very common building decoration materials, and can be divided into soft foaming materials and structural foam materials. Soft foaming materials are made of raw materials such as plastics (PE, EVA, etc.) and rubbers (SBR, CR, etc.), together with auxiliary materials such as catalysts, foam stabilizers, and foaming agents. Through physical foaming or cross-linking foaming, a large number of fine bubbles appear in the plastics and rubbers, increasing the volume and reducing the density. Soft foaming materials are light in weight and good in softness, and have functions such as buffering, sound absorption, shock absorption, heat preservation, and filtration, and are widely used in industries such as electronics, household appliances, automobiles, and sports and leisure. Structural foam materials are based on plastics (PVC, PET, etc.), and are foaming materials modified by a penetrating aromatic amide polymerization network. Like soft foaming materials, they have a very low density but high strength, and are suitable for high-end fields that require light materials and high strength, and are mainly used in industries such as wind power generation, rail transit, yachts, aerospace, and building energy conservation.

[0003] New material fields such as polymer materials are the basis for the development and progress of science and technology. In recent years, China has achieved a number of innovations in the production process of polymer foaming materials, the product performance has been gradually improved, and the application fields have also been increasingly broadened, which will further boost the faster development of the polymer foaming material industry.

[0004] In recent years, with the continuous increase in the demand for building decoration materials, more and more research and development have been carried out on structural foamed plastic products, such as PC, HIPS, ABS, etc. In the structural foaming of PVC, since both the resin and the foaming agent are powder materials, they are easy to be mixed evenly during the mixing process. However, for resins such as HIPS and ABS, which are all granular materials, simple mixing equipment is likely to result in uneven mixing and unsatisfactory foaming effect. Foaming masterbatch is to concentrate the foaming agent in the carrier and make it into granular form. It not only solves the problem of dispersion of the foaming agent in the base material, but also solves the problems of dust flying and metering error, simplifies the production, and improves the product quality.

[0005] During the production process of the foaming material, granulation needs to be carried out first. After granulation, it needs to be fed into the sheet extrusion process. The feeding equipment for masterbatch can directly affect the production efficiency of the foaming material. The feeding speed and uniformity of the masterbatch are important factors determining the quality of the foaming material. In the Chinese patent with the application number CN201922029122.4 disclosed in the prior art, an environmentally friendly PP foaming material feeding equipment is disclosed, including a base. The center position of the top wall of the base is fixedly connected with a first installation box. The top wall of the first installation box is fixedly connected with a second installation box. A first groove is opened between the center positions of the upper and lower side walls of the base. Installation holes are opened between the upper and lower side walls at the four corners of the base. The bottom wall of the first installation box is provided with a second groove corresponding to the first groove. In the present utility model, a combined active and passive feeding design is adopted. The device body can be fixedly installed at the feeding port through the base. The feeding groove on the upper side of the device body is trapezoidal in reverse for feeding. In addition, active conveying devices are arranged on the two side walls to assist in feeding. In addition, a rotating feeding device is arranged in the middle of the device body, which can prevent feeding blockage and assist in feeding. The actual feeding rate of the whole device is fast, and it is not easy to cause blockage of the environmentally friendly PP foaming material during feeding. The device in this application cannot control the feeding flow rate of the masterbatch and is prone to blockage.

[0006] The Chinese patent with the application number CN201820190106.6 disclosed in the prior art discloses an environmentally friendly PP foaming material feeding equipment, including a base, a lifting rod, a telescopic pipe, a conveying pipe, a fan, a isolation net and a vibrator. The lifting rod is connected to the upper end of the base. The conveying pipe is installed at the upper end of the lifting rod. A telescopic pipe is connected to one side of the conveying pipe. The vibrator is installed at the upper end of the telescopic pipe. The isolation net is installed outside the fan. The telescopic pipe is provided to effectively adjust the angle of the feeding port, so that the feeding port is parallel to the ground in different situations, avoiding material exposure and facilitating feeding. The vibrator is provided to effectively vibrate and disperse the PP material to prevent a large amount of material from blocking the feeding port. The fan is provided to effectively accelerate the outflow of the PP material from the outlet, prevent blockage of the outlet and improve the transportation efficiency. The isolation net is provided to effectively prevent the PP material from entering the fan and damaging the machine. The lifting rod is provided to effectively adjust the height of the conveying pipe according to the actual situation. The feeding structure in this application is upward in reverse, and the material is transported to the upper part by rotation. The feeding speed is low and the production efficiency is poor. Moreover, the structure is prone to blockage.

[0007] In the masterbatch feeding device in the prior art, the feeding speed cannot be controlled in the structure, and it is easy to cause blockage. The feeding speed is unstable and difficult to control. The feeding speed is slow, affecting the production efficiency of the foaming material. Summary of the Invention

[0008] In view of this, the present invention provides a feeding device for foaming material masterbatch, which has a uniform feeding speed, will not cause local blockage, and can multiply change the feeding speed when feeding the masterbatch. The feeding speed is controllable and the feeding amount is uniform.

[0009] The present invention relates to a feeding device for foaming material masterbatch, which includes a feed hopper arranged from top to bottom, a material leveling device communicated with the feed hopper, a flow splitting device abutted against the material leveling device, and an aggregate device arranged directly below the flow splitting device. The material leveling device includes a material leveling box and a stirring member arranged in the material leveling box. The bottom of the material leveling box is provided with a receiving groove with a circular arc cross-section, and a plurality of discharge holes are opened on the receiving groove; the flow splitting device includes a rotatable flow splitting box partially accommodated in the receiving groove, a feed hole opened on the flow splitting box and facing the discharge hole, and an aggregate bag. The aggregate bag is accommodated in the flow splitting box, and the opening of the aggregate bag is fixedly connected to the edge of the feed hole. A partition plate is arranged between adjacent feed holes. The flow splitting device further includes a plurality of heavy balls and elastic connecting members with one end fixedly connected to the inner wall on the opposite side of the flow splitting box where the feed hole is located and the other end fixedly connected to the heavy balls. The heavy balls can squeeze the aggregate bag; the aggregate device includes a plurality of aggregate hoppers that can face the opening.

[0010] Preferably, the flow splitting box is fixedly connected to a rotating shaft.

[0011] Preferably, the maximum stretching length of the aggregate bag is greater than the radius of the flow splitting box, and the maximum stretching length of the elastic connecting member is greater than the radius of the flow splitting box.

[0012] Preferably, the number of the heavy balls is greater than or equal to the number of the aggregate bags.

[0013] Preferably, the partition plate divides the flow splitting box into a plurality of flow splitting chambers.

[0014] Preferably, the material of the aggregate bag is elastic rubber.

[0015] Preferably, the aggregate bag is one of an oval shape and a spherical shape.

[0016] Preferably, the feed inlet at the top of the feed hopper is rectangular, and the bottom is circular arc-shaped. The bottom of the feed hopper is partially attached to the upper part of the material leveling box.

[0017] Preferably, the stirring member includes a rotating main shaft and stirring rods fixedly connected to the rotating main shaft.

[0018] Preferably, the stirring member includes a rotating main shaft and spiral stirring blades arranged spirally along the rotating main shaft.

[0019] Working principle of the present invention: When the feed inlet is aligned with the discharge hole, the masterbatch in the material leveling box will enter the aggregate bag through the feed inlet. At this time, the heavy ball is at the bottom of the diversion box. Then the diversion box continues to rotate, and the feed hole and the discharge hole are no longer aligned. When the feed hole and the discharge hole are no longer aligned, it is equivalent to that the discharge hole is blocked by the outer wall of the diversion box, and the masterbatch in the material leveling box will not continue to flow downward. When the feed hole rotates in the vertically downward direction, the masterbatch in the aggregate bag will fall into the corresponding aggregate hopper. At the same time, the heavy ball gradually becomes vertically downward hanging, and the elastic connecting piece is gradually stretched. During this process, the heavy ball will swing, and it will collide and squeeze the aggregate bag during its back-and-forth swing, so as to assist the masterbatch in the aggregate bag to be completely emptied and fall into the aggregate hopper through this shaking. Then the material leveling box continues to rotate, the heavy ball gradually moves downward, and the feed inlet gradually becomes in the upward state to carry out the next masterbatch loading process.

[0020] The feeding speed of the equipment of the present invention is uniform, without causing local blockage, and the feeding speed of the masterbatch can be doubled when feeding, the feeding speed is controllable, and the feeding amount is uniform. The collision of the heavy ball can avoid residual masterbatch in the aggregate bag. Brief Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a masterbatch feeding device for foaming materials provided in the specific embodiment of the present invention;

[0022] Figure 2 It is another schematic structural diagram (schematic diagram of the internal cross-section structure) of a masterbatch feeding device for foaming materials provided in the specific embodiment of the present invention;

[0023] Figure 3 It is a schematic structural diagram of the material leveling box of a masterbatch feeding device for foaming materials provided in the specific embodiment of the present invention;

[0024] Figure 4 It is a schematic structural diagram of the receiving groove of a masterbatch feeding device for foaming materials provided in the specific embodiment of the present invention;

[0025] Figure 5 It is a schematic structural diagram of the diversion device of a masterbatch feeding device for foaming materials provided in the specific embodiment of the present invention;

[0026] Figure 6 It is a schematic structural diagram of the diversion box of a masterbatch feeding device for foaming materials provided in the specific embodiment of the present invention; (from left to right, the internal structure shape of the diversion box when it rotates 90° and 180°, and the heavy ball becomes in the hanging state)

[0027] Figure 7This is a schematic structural diagram of the aggregate hopper of a feeding device for a foaming material masterbatch provided in the specific embodiment of the present invention.

[0028] Among them: feed hopper 1, material leveling device 2, material leveling box 21, stirring member 22, rotating main shaft 221, stirring rod 222, receiving groove 23, discharge hole 231, shunt device 3, feed hole 31, aggregate bag 32, shunt box 33, shunt cavity 331, partition plate 34, heavy ball 35, elastic connecting member 36, aggregate device 4, aggregate hopper 41. Specific embodiment

[0029] The present invention will be described in detail below in conjunction with specific embodiments.

[0030] Example 1

[0031] Please refer to Figures 1 to 7 , Figure 1 This is a schematic structural diagram of a feeding device for a foaming material masterbatch provided in this embodiment; Figure 2 This is a schematic structural diagram of the internal cross-section of a feeding device for a foaming material masterbatch provided in this embodiment; Figure 3 This is a schematic structural diagram of the material leveling box of a feeding device for a foaming material masterbatch provided in this embodiment; Figure 4 This is a schematic structural diagram of the receiving groove of a feeding device for a foaming material masterbatch provided in this embodiment; Figure 5 This is a schematic structural diagram of the shunt device of a feeding device for a foaming material masterbatch provided in this embodiment; Figure 6 This is a schematic structural diagram of the shunt box of a feeding device for a foaming material masterbatch provided in this embodiment. From left to right, it is the shape of the internal structure of the shunt box when it rotates 90° and 180°, and the heavy ball becomes a hanging state; Figure 7 This is a schematic structural diagram of the aggregate hopper of a feeding device for a foaming material masterbatch provided in this embodiment.

[0032] A feeding device for a foaming material masterbatch, comprising a feed hopper 1 arranged successively from top to bottom, a material leveling device 2 communicated with the feed hopper 1, a shunt device 3 abutted against the material leveling device 2, and an aggregate device 4 arranged directly below the shunt device 3. The material leveling device 2 includes a material leveling box 21 and a stirring member 22 arranged in the material leveling box 21. A receiving groove 23 with an arc-shaped cross-section is provided at the bottom of the material leveling box 21, and a plurality of discharge holes 231 are formed in the receiving groove 23. The shunt device 3 includes a rotatable shunt box 33 partially accommodated in the receiving groove 23 (that is, the receiving groove 23 can be attached to the shunt box 33. The material leveling box 21 is fixed and does not rotate, while the shunt box 33 can rotate. During the rotation of the shunt box 33, the receiving groove 23 always maintains a state of being attached to the shunt box 33), a feed hole 31 formed in the shunt box 33 and facing the discharge hole 231, and an aggregate bag 32. The number of the discharge holes 231 is the same as that of the feed holes 31, and the shape and size of the discharge hole 231 can be the same as those of the feed hole 31. In this way, when they are facing each other, the masterbatch in the material leveling box 21 can enter the aggregate bag 32 through the feed hole 31. The aggregate bag 32 is accommodated in the shunt box 33, and the opening of the aggregate bag 32 is fixedly connected to the edge of the feed hole 31. A partition plate 34 is provided between adjacent feed holes 31. The shunt device 3 further includes a plurality of heavy balls 35 and an elastic connecting member 36 with one end fixedly connected to the inner wall on the opposite side of the shunt box 33 where the feed hole 31 is provided and the other end fixedly connected to the heavy ball 35. It can be that one end of the elastic connecting member 36 is fixedly connected to the heavy ball 35 and the other end is fixedly connected to the inner side wall of the shunt box 33. The position of the fixed connection point of the elastic connecting member 36 and the shunt box 33 is opposite to the feed port. When the elastic connecting member 36 is vertical, the heavy ball 35 can squeeze the aggregate bag 32. When the opening of the aggregate bag 32 is facing upward, the masterbatch fills the aggregate bag 32. Then when the opening of the aggregate bag 32 faces downward, the masterbatch gradually pours into the aggregate device 4. At the same time, during the swinging process of the heavy ball 35, the shaking feeling it brings can help the masterbatch that has not been completely poured out in the aggregate bag 32 to pour out. The aggregate device 4 includes a plurality of aggregate hoppers 41 that can be opposite to the opening.

[0033] Wherein, the shunt box 33 is fixedly connected to a rotating shaft. The maximum stretching length of the aggregate bag 32 is greater than the radius of the shunt box 33, and the maximum stretching length of the elastic connecting member 36 is greater than the radius of the shunt box 33. This is to ensure that when the elastic connecting member 36 is vertically downward, the heavy ball 35 can rub against the shunt box 33, thereby bringing a vibration feeling to the aggregate bag 32.

[0034] The number of the heavy balls 35 is equal to the number of the aggregate bags 32. In this embodiment, the number of the heavy balls 35 is 5, and the number of the diversion chambers 331 is also 5. The number of the heavy balls 35 is equal to the number of the elastic connectors 36. The elastic connectors 36 can be springs. The partition plate 34 divides the diversion box 33 into a plurality of diversion chambers 331. The number of the diversion chambers 331 is equal to that of the feed holes 31. The aggregate bags 32, the heavy balls 35, and the elastic connectors 36 are all arranged in the diversion chambers 331. A plurality of heavy balls 35 and elastic connectors 36 can be arranged in one diversion chamber 331. Of course, the number of the heavy balls 35 and the elastic connectors 36 is the same.

[0035] The material of the aggregate bag 32 is elastic rubber. This is to increase the loading capacity of the aggregate bag 32 when it is stretched downward when loading the masterbatch. When it is necessary to pour out the masterbatch in the aggregate bag 32, the aggregate bag 32 will gradually shrink as the masterbatch decreases. As the diversion box 33 rotates, the elastic connectors 36 change from a non-vertical state to a vertical state. During this process, the heavy balls 35 will be driven to swing. The swing of the heavy balls 35 will continuously impact the aggregate bag 32, so that the remaining masterbatch in the aggregate bag 32 will fall out. In addition, when the heavy balls 35 and the elastic connectors 36 are in the lower half of the diversion box 33, they will not impact the aggregate bag 32, so the stability of the masterbatch in the aggregate bag 32 will not be affected.

[0036] The aggregate bag 32 is oval.

[0037] The feed inlet at the top of the feed hopper 1 is rectangular, and the bottom is arc-shaped. The bottom of the feed hopper 1 is partially attached to the upper part of the material leveling box 21.

[0038] The stirring member 22 includes a rotating main shaft 221 and stirring rods 222 fixedly connected to the rotating main shaft 221.

[0039] The material leveling box 21 is fixed and does not rotate. The position of the discharge hole 231 is fixed. The stirring member 22 arranged in the material leveling box 21 rotates. By continuously stirring the masterbatch, the masterbatch in the material leveling box 21 can be evenly distributed. The shunt box 33 rotates continuously, driving the openings of the feed hole 31 and the aggregate bag 32 to change their orientations. When the feed port is aligned with the discharge hole 231, the masterbatch in the material leveling box 21 enters the aggregate bag 32 through the feed port. At this time, the heavy ball 35 is at the bottom of the shunt box 33. Then the shunt box 33 continues to rotate, and the feed hole 31 and the discharge hole 231 are no longer aligned. When the feed hole 31 and the discharge hole 231 are no longer aligned, it is equivalent to that the discharge hole 231 is blocked by the outer wall of the shunt box 33, and the masterbatch in the material leveling box 21 will not continue to flow downward. When the feed hole 31 rotates in the vertically downward direction, the masterbatch in the aggregate bag 32 will fall into the corresponding aggregate hopper 41. At the same time, the heavy ball 35 gradually becomes vertically downward suspended, and the elastic connecting member 36 is gradually stretched. During this process, the heavy ball 35 will swing, and during its back-and-forth swinging process, it will collide with and squeeze the aggregate bag 32, and through this shaking, it helps the masterbatch in the aggregate bag 32 to be completely emptied and fall into the aggregate hopper 41. Then the material leveling box 21 continues to rotate, the heavy ball 35 gradually moves downward, and the feed port gradually becomes in the directly upward state to perform the next loading of the masterbatch. The above process is continuously repeated to realize the shunt feeding of the masterbatch.

[0040] Of course, during the whole process, the rotation speed of the shunt box 33 can be connected to the relevant PLC module so that the rotation speed of the shunt box 33 is not fixed. It can be that when the feed hole 31 is aligned with the discharge hole 231, the rotation speed of the shunt box 33 is relatively slow, or it does not rotate and stops rotating for a certain period of time so that the aggregate bag 32 can be filled with the masterbatch. Then the shunt box 33 accelerates to rotate, making the feed hole 31 and the discharge hole 231 no longer aligned. When the feed hole 31 faces downward, it decelerates slightly so that the masterbatch in the aggregate bag 32 can completely fall into the aggregate hopper 41. Then the shunt box 33 accelerates to continue rotating, making the feed hole 31 and the discharge hole 231 aligned again.

[0041] Embodiment 2

[0042] Please refer to Figures 1 to 7, A feeding device for a foaming material masterbatch, including a feed hopper 1 arranged from top to bottom, a material leveling device 2 communicated with the feed hopper 1, a shunt device 3 abutted against the material leveling device 2, and an aggregate device 4 arranged directly below the shunt device 3. The material leveling device 2 includes a material leveling box 21 and a stirring member 22 arranged in the material leveling box 21. The bottom of the material leveling box 21 is provided with a receiving groove 23 with a circular arc cross-section, and a plurality of discharge holes 231 are opened on the receiving groove 23; the shunt device 3 includes a rotatable shunt box 33 partially accommodated in the receiving groove 23, a feed hole 31 opened on the shunt box 33 and facing the discharge hole 231, and an aggregate bag 32. (That is, the receiving groove 23 can be attached to the shunt box 33. The material leveling box 21 is fixed and does not rotate. The shunt box 33 can rotate. During the rotation of the shunt box 33, the receiving groove 23 always maintains a state of being attached to the shunt box 33.) The aggregate bag 32 is accommodated in the shunt box 33, the opening of the aggregate bag 32 is fixedly connected to the edge of the feed hole 31, and a partition plate 34 is provided between adjacent feed holes 31. The shunt device 3 further includes a plurality of heavy balls 35 and an elastic connecting member 36 with one end fixedly connected to the inner wall of the semi-circle on the side of the shunt box 33 where there is no feed hole 31 and the other end fixedly connected to the heavy ball 35. That is, the position of the fixed point of the elastic connecting member 36 and the shunt box 33 is on the arc of the semi-circle facing the feed hole 31. The heavy ball 35 can squeeze the aggregate bag 32; the aggregate device 4 includes a plurality of aggregate hoppers 41 that can be directly opposite to the opening.

[0043] The shunt box 33 is fixedly connected to the rotating shaft.

[0044] The maximum stretching length of the aggregate bag 32 is greater than the radius of the shunt box 33, and the maximum stretching length of the elastic connecting member 36 is greater than the radius of the shunt box 33.

[0045] The number of the heavy balls 35 is equal to 2 times that of the aggregate bags 32. The partition plate 34 divides the shunt box 33 into a plurality of shunt chambers 331. In this embodiment, the number of the heavy balls 35 is 10, and the number of the shunt chambers 331 is also 5.

[0046] Among them, the aggregate bag 32 is spherical. At the same time, the feed inlet at the top of the feed hopper 1 is rectangular, and the bottom is circular arc-shaped. The bottom of the feed hopper 1 is partially attached to the upper part of the material leveling box 21. The stirring member 22 includes a rotating main shaft 221 and spiral stirring blades spirally arranged along the rotating main shaft 221. Such a design can transport the material at one end to other places when there is more material in one part and less in another part, so as to make the material uniform.

[0047] In the present invention, the discharge port of the aggregate hopper 41 should be directly opposite to the equipment of the next process, so that the divided masterbatch can enter the next process. When using the feeding equipment in this application, the number of outlets of the aggregate hopper 41 of the machine entering the next process can be selected according to needs. The aggregate device 4 of this application can handle multiple machines of the next process. For example, there are 5 aggregate hoppers 41, and the outlets of the 1st - 3rd aggregate hoppers 41 are directly opposite to the inlet of the 1st machine, and the 4th - 5th aggregate hoppers 41 are directly opposite to the 2nd machine. Thus, the feeding speed of the masterbatch is controlled by the number of the directly opposite aggregate hoppers 41. At the same time, the aggregate hopper 41 can also be set to be equipped with a cover. When a large masterbatch feeding speed is not required, several aggregate hoppers 41 can be closed.

[0048] The feeding speed of the equipment of the present invention is uniform, without causing local blockage, and the feeding speed of the masterbatch can be changed exponentially during feeding. The feeding speed is controllable and the feeding amount is uniform. The collision of the heavy ball 35 can avoid residual masterbatch in the aggregate bag 32.

[0049] The present invention is not limited to the above - mentioned specific embodiments, and the present invention can have various modifications and changes. Any modifications, equivalent replacements, improvements, etc. made based on the technical essence of the present invention to the above - mentioned embodiments shall be included in the protection scope of the present invention.

Claims

1. A feeding device for a foaming material masterbatch, characterized in that, It includes a feed hopper arranged from top to bottom, a material leveling device communicated with the feed hopper, a flow splitting device abutted against the material leveling device, and an aggregate device arranged directly below the flow splitting device. The material leveling device includes a material leveling box and a stirring member arranged in the material leveling box. The bottom of the material leveling box is provided with a receiving groove with a circular arc cross-section, and a plurality of discharge holes are opened on the receiving groove; the flow splitting device includes a rotatable flow splitting box partially accommodated in the receiving groove, a feed hole opened on the flow splitting box and facing the discharge hole, and an aggregate bag. The aggregate bag is accommodated in the flow splitting box, and the opening of the aggregate bag is fixedly connected to the edge of the feed hole. A partition plate is arranged between adjacent feed holes. The flow splitting device further includes a plurality of heavy balls and elastic connectors with one end fixedly connected to the inner wall on the opposite side of the flow splitting box where the feed hole is provided and the other end fixedly connected to the heavy balls. The heavy balls can squeeze the aggregate bag; the aggregate bag is made of elastic rubber; the aggregate device includes a plurality of aggregate hoppers that can be opposite to the opening.

2. The feeding device for the foaming material masterbatch according to claim 1, characterized in that, The flow splitting box is fixedly connected to a rotating shaft.

3. The feeding device for the foaming material masterbatch according to claim 1, characterized in that, The maximum stretching length of the aggregate bag is greater than the radius of the flow splitting box, and the maximum stretching length of the elastic connector is greater than the radius of the flow splitting box.

4. The feeding device for the foaming material masterbatch according to claim 1, wherein, The number of the heavy balls is greater than or equal to the number of the aggregate bags; the partition plate divides the flow splitting box into a plurality of flow splitting chambers.

5. The feeding device for the masterbatch of foaming material according to claim 1, characterized in that, The aggregate bag is one of an oval shape and a spherical shape.

6. The feeding device for the foaming material masterbatch according to claim 1, characterized in that, The feed port at the top of the feed hopper is rectangular, and the bottom is circular arc-shaped. The bottom of the feed hopper is partially attached to the upper part of the material leveling box.

7. The feeding device for the foaming material masterbatch according to claim 6, characterized in that The stirring member includes a rotating main shaft and stirring rods fixedly connected to the rotating main shaft.

8. The feeding device for the foaming material masterbatch according to claim 6, characterized in that, The stirring member includes a rotating main shaft and spiral stirring vanes spirally arranged along the rotating main shaft.

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