Storage bin for TPV elastomer particles

Abstract

The utility model relates to a TPV elastomer particle storage bin, and relates to the field of TPV granulation equipment, the TPV elastomer particle storage bin comprises a storage bin body and a bin body support, the storage bin body is arranged on the bin body support, the storage bin body is provided with an air conveying interface, an air outlet and a discharge port, the air conveying interface is arranged at the upper part of the storage bin body, and the air outlet is arranged at the lower part of the storage bin body. The storage bin comprises a storage bin body, a discharge port and an air outlet, the discharge port is formed in the bottom of the storage bin body, the air outlet is formed in the top face of the storage bin body, an air outlet pipe extending downwards is fixed to the position, on the side wall of the air outlet, of the storage bin body, and loss of TPV elastomer particles in the storage process can be reduced.

Description

Technical Field

[0001] This application relates to the field of TPV granulation equipment, and particularly to a storage bin for TPV elastomer particles. Background Art

[0002] Thermoplastic vulcanizate, abbreviated as TPV, mainly consists of two parts. One is plastic as the continuous phase, and the other is rubber as the dispersed phase. It has excellent dynamic fatigue resistance, high tear resistance, excellent weather resistance, good abrasion resistance, and excellent flame retardant and anti-ultraviolet properties. It has excellent erosion resistance to water-based acid-base liquids and polar oils, and has been widely used in industries such as automotive parts, electronics and electrical appliances, sports equipment, and wires and cables.

[0003] TPV materials are usually first processed into elastomer particles, and then the elastomer particles are used as raw materials for finished product processing. When processing TPV elastomers, the TPV materials are usually heated to a molten state in an extruder, continuously extruded through the extrusion holes on the extrusion die, and then the extruded strip-shaped TPV elastomers are cut by a cutter and cooled into TPV elastomer particles. Then, the TPV elastomer particles are transported to a storage bin by a pneumatic conveying device for temporary storage, and when needed, the TPV elastomer particles are packaged in a packaging bag and sent out for use.

[0004] Existing storage bins for TPV elastomer particles usually only have one feed inlet and one discharge outlet. The pneumatic conveying pipeline is inserted into the storage bin through the feed inlet to transport and store the TPV elastomer particles into the storage bin, and the airflow for transporting the TPV elastomer particles also flows out from the feed inlet of the storage bin. Since the air flow rate for transporting the TPV elastomer particles is relatively large, and the space inside the storage bin is limited, the gas flow rate inside the storage bin is also relatively large, which easily causes some TPV elastomer particles to flow out from the feed inlet around the pneumatic conveying pipeline, resulting in the loss of TPV elastomer particles. When packaging the TPV elastomer particles, it is necessary to manually place the packaging bag under the discharge outlet of the storage bin, open the discharge outlet to put the TPV elastomer particles into the packaging bag, and then manually close the discharge outlet when a certain amount of TPV elastomer particles are in the packaging bag. The entire discharging process requires manual operation, the operation process is complex, and the workload of workers is large. Summary of the Utility Model

[0005] In order to reduce the loss during the storage process of TPV elastomer particles, this application provides a storage bin for TPV elastomer particles.

[0006] The storage bin for TPV elastomer particles provided by this application includes a storage bin body and a bin body support. The storage bin body is arranged on the bin body support. A pneumatic conveying interface, an air outlet and a discharging port are arranged on the storage bin body. The pneumatic conveying interface is arranged at the upper part of the storage bin body. The discharging port is arranged at the bottom of the storage bin body. The air outlet is arranged on the top surface of the storage bin body. An air outlet pipe extending downward is fixed on the storage bin body on the side wall of the air outlet.

[0007] Preferably, a wind guiding spiral plate is arranged between the pipe wall of the air outlet pipe and the side wall of the storage bin body. The wind guiding spiral plate divides the space between the air outlet pipe and the storage bin body into a spiral wind guiding channel. The communication port between the pneumatic conveying interface and the storage bin body is arranged at the top of the wind guiding channel.

[0008] More preferably, the wind guiding spiral plate inclines downward from the side wall of the storage bin body to the air outlet pipe.

[0009] Furthermore, the wind guiding spiral plate rotates around the side wall of the air outlet pipe for at least one and a half circles.

[0010] Preferably, a particle filter screen is arranged in the air outlet pipe. The pore diameter of the particle filter screen is smaller than the diameter of the TPV elastomer particles.

[0011] Preferably, a discharging valve and a valve driver are arranged at the discharging port. The valve driver is drivingly connected with the discharging valve to be able to drive the discharging valve to open and discharge the TPV elastomer particles stored in the storage bin body.

[0012] More preferably, the discharging valve includes a discharging valve body and a rotating valve plate. A valve body material hole is arranged on the discharging valve body. A valve plate material hole is arranged on the rotating valve plate. The rotating valve plate is rotatably connected to the discharging valve body and can rotate under the drive of the valve driver so that the valve plate material hole corresponds to or intersects with the valve body material hole.

[0013] Preferably, a packaging bag fixing frame is arranged on the bin body support. The packaging bag fixing frame is arranged below the discharging port.

[0014] Further preferably, the packaging bag fixing rack includes a packaging bag fixing rod and a movable clamping rod. The packaging bag fixing rod is fixed on the bin support. A clamping rod mounting plate is arranged on the outer side of the packaging bag fixing rod. A clamping cam is fixedly arranged on the clamping rod mounting plate. The movable clamping rod is rotatably mounted on the clamping rod mounting plate through a rotating shaft. A moving pressure rod is slidably arranged on the movable clamping rod. A clamping tension spring is arranged between the moving pressure rod and the rotating shaft of the movable clamping rod. The moving pressure rod can abut against the clamping cam under the action of the clamping tension spring, so that the movable clamping rod clamps the packaging bag fixing rod.

[0015] Further, a packaging bag induction button is arranged on the packaging bag fixing rod. The packaging bag induction button is connected with the material discharge port and can be triggered when the opening of the TPV elastomer particle packaging bag is clamped between the movable clamping rod and the packaging bag fixing rod.

[0016] The storage bin for TPV elastomer of the present application includes at least one of the following beneficial technical effects:

[0017] 1. By arranging an air outlet pipe extending downward in the storage bin body at the air outlet, an isolation can be formed between the air conveying interface and the air outlet at the upper part of the storage bin body, so that the conveying air flow carrying TPV elastomer particles flows downward for a certain distance and then turns upward at the opening of the air outlet pipe and flows out of the storage bin body through the air outlet. During the process of the conveying air flow decelerating and flowing downward and turning, it is separated from the TPV elastomer particles, preventing the TPV elastomer particles from flowing out of the air outlet.

[0018] 2. By arranging a wind guiding spiral sheet between the air outlet pipe and the storage bin body, the air flow entering the storage bin body from the air conveying interface can be guided to flow downward spirally along the inner wall of the storage bin body, so that the TPV elastomer particles therein are concentrated at the edge of the air flow under the action of centrifugal force and are more easily separated from the air flow when the air flow turns, preventing the TPV elastomer particles from entering the air outlet pipe along with the air flow.

[0019] 3. By arranging a particle filter screen in the air outlet pipe, the TPV elastomer particles can be intercepted, preventing a small amount of TPV elastomer particles from flowing out of the storage bin along with the air flow and preventing the loss of TPV elastomer particles.

[0020] 4. By arranging a packaging bag fixing rod and a movable clamping rod on the bin support, the bag mouth of the packaging bag can be clamped between the packaging bag fixing rod and the movable clamping rod, facilitating the TPV elastomer particles flowing out from the material discharge port to flow into the packaging bag. And it can be sensed by the packaging bag induction button whether the packaging bag is clamped on the packaging bag fixing rack, so as to control the opening and closing of the material discharge port, improving the automation degree of the discharging process and reducing the workload of the operating workers. Description of the Drawings

[0021] Figure 1 This is a schematic diagram of an embodiment of the present application.

[0022] Figure 2 This is a schematic diagram of the internal structure of the storage bin body in an embodiment of the present application.

[0023] Figure 3 This is a schematic diagram of the structure of the discharge valve in an embodiment of the present application.

[0024] Figure 4 This is a schematic diagram of the structure of the packaging bag fixing frame (partial) in an embodiment of the present application.

[0025] Explanation of reference numerals: 1. Storage bin body; 11. Pneumatic conveying interface; 12. Air outlet; 13. Discharge port; 131. Discharge valve; 1311. Discharge valve body; 1312. Rotary valve plate; 132. Valve driver; 14. Air outlet pipe; 141. Particle filter screen; 15. Air guiding spiral blade; 2. Bin body support; 21. Packaging bag fixing frame; 211. Packaging bag fixing rod; 212. Movable clamping rod; 213. Clamping rod mounting plate; 214. Clamping cam; 215. Moving pressure rod; 216. Clamping tension spring; 217. Packaging bag induction button. Detailed implementation manners

[0026] The following will describe the detailed implementation manners of the present application with reference to the accompanying drawings. It should be understood that the detailed implementation manners described herein are only used to illustrate and explain the present application, and are not used to limit the present application.

[0027] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "set" and "connect" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, and can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations.

[0028] An embodiment of the storage bin for TPV elastomer particles of the present application, as Figure 1 and Figure 2As shown, the device comprises a storage silo 1 and a silo support 2. The storage silo 1 can be any container capable of temporarily storing TPV elastomer particles, typically having a cylindrical upper portion and an inverted conical lower portion. The cylindrical structure of the upper portion of the storage silo 1 provides a larger storage capacity, thereby storing more TPV elastomer particles; the conical structure of the lower portion concentrates the TPV elastomer particles at the bottom of the storage silo 1, facilitating convenient and complete discharge of the TPV elastomer particles from the storage silo 1 into a discharge area at the bottom of the storage silo 1.

[0029] Silo support 2 can be any structure capable of securing and supporting silo 1, typically a frame structure formed from metal profiles such as square steel. Silo support 2 is supported below silo 1. The inverted conical structure at the bottom of silo 1 is supported and secured to silo support 2, creating an operating space below silo 1 for discharging and packaging TPV elastomer granules.

[0030] A wind conveying interface 11 is provided at the upper part of the storage silo body 1, which is also the upper part of the cylindrical silo body. A wind conveying interface 11 is a pipe with a circular opening at one end and a square opening at the other end. One side of the square opening end of the wind conveying interface 11 is cut off by a cylindrical curved surface and fixed to one side of the upper part of the storage silo body 1, and is connected to the storage space in the storage silo body 1, and the outer side wall of the wind conveying interface 11 is tangent to the wall of the cylindrical structure on the upper part of the storage silo body 1; the circular opening end of the wind conveying interface 11 is used to be connected to the wind conveying pipe, so that the airflow carrying TPV elastomer particles transported by the wind conveying pipe enters the storage silo body 1 in a direction tangential to the storage silo body 1, forming an airflow flowing in a ring along the wall in the storage silo body 1.

[0031] An air outlet 12 is provided on the top surface of the storage silo body 1. The air outlet 12 is generally provided in the middle of the top surface of the storage silo body 1. The conveying airflow entering the storage silo body 1 through the wind conveying interface 11 is discharged through the air outlet 12, thereby ensuring that the airflow in the wind conveying pipe can continuously and massively enter the storage silo body 1, thereby forming a continuous and effective transmission of the TPV elastomer particles. Placing the air outlet 12 in the middle of the top surface of the storage silo body 1 can prevent the annular airflow entering the storage silo body 1 through the wind conveying interface 11 from being directly blown to the air outlet 12, so that the TPV elastomer particles in the airflow have more time to settle from the airflow, which is conducive to reducing the possibility of TPV elastomer particles flowing out of the air outlet 12.

[0032] An air outlet pipe 14 is fixedly arranged on the storage bin body 1 around the air outlet 12. The pipe wall of the air outlet pipe 14 is connected to the top surface of the storage bin body 1, and the pipe cavity is communicated with the air outlet. The air outlet pipe 14 extends downward from the top surface of the storage bin body 1 and opens below the communication port between the pneumatic conveying interface 11 and the storage bin body 1, so that the annular air flow entering the storage bin body 1 through the pneumatic conveying interface 11 is isolated from the air outlet 12. It must drop a certain distance before it can turn upward through the opening at the lower end of the air outlet pipe 14 and flow out through the upper air outlet 12. The TPV elastomer particles carried in the conveying air flow are concentrated on the wall of the storage bin body 1 due to the action of centrifugal force during the annular flow of the air flow, and can break away from the conveying air flow under the action of inertia during the process of the conveying air flow turning upward, avoiding the loss of TPV elastomer particles flowing upward with the air flow through the air outlet 12.

[0033] The TPV elastomer particles separated from the air flow accumulate in the inverted conical structure at the lower part of the storage bin body 1 under the action of gravity, and gradually accumulate and store in the lower part of the cylindrical structure of the storage bin body 1 for storage in the storage bin body 1.

[0034] A discharge port 13 is arranged at the bottom of the storage bin body 1. Through the discharge port 13, the TPV elastomer particles can be discharged from the storage bin body 1 and loaded into a packaging bag, which is convenient for the packaging and transportation of the TPV elastomer particles.

[0035] In a preferred embodiment of the storage bin for TPV elastomer particles of the present application, as Figure 2 shown, a wind guiding spiral fin 15 is arranged between the outer side wall of the air outlet pipe 14 and the inner side wall of the storage bin body 1. The inner edge of the wind guiding spiral fin 15 is fixedly connected to the outer side wall of the air outlet pipe 14, and the outer edge is fixedly connected to the inner side wall of the storage bin body 1, dividing the space between the air outlet pipe 14 and the storage bin body 1 into a spiral wind guiding channel. The communication port between the pneumatic conveying interface 11 and the storage bin body 1 is located at the top of the spiral wind guiding channel. The air flow carrying the TPV elastomer particles entering the storage bin body 1 through the pneumatic conveying interface 11 flows downward in layers along the inner wall of the storage bin body 1 around the spiral wind guiding channel. During the flowing process, the TPV elastomer particles gradually concentrate downward and outward under the action of gravity and centrifugal force and are separated from the air flow. Since the wind guiding spiral fin 15 separates the air flows on the upper and lower sides, the influence of the lower air flow on the upper air flow is avoided, which is beneficial to the sedimentation of the TPV elastomer particles from the air flow.

[0036] In a further preferred embodiment, as Figure 2As shown, as the air guiding spiral piece 15 extends from the pipe wall of the air outlet pipe 14 towards the side wall of the storage bin body 1, the height of the air guiding spiral piece 15 gradually decreases, presenting a downward inclined state. This makes the outer side height of the bottom wall of the spiral air guiding channel formed by the air guiding spiral piece 15 relatively low, which is conducive to the settlement of TPV elastomer particles at a position close to the side wall of the storage bin body 1, thus being in a position far from the opening of the air outlet pipe 14, and reducing the probability that the TPV elastomer particles are driven into the air outlet pipe 14 when the air flow turns at the opening of the air outlet pipe 14.

[0037] In a specific embodiment, as Figure 2 shown, the air guiding spiral piece 15 extends at least one and a half turns of a spiral in the space between the inner side wall of the storage bin body 1 and the air outlet pipe 14, so that before the conveying air flow enters the opening of the air outlet pipe 14, it rotates at least 1.5 circumferences in the air guiding channel, which is conducive to the stable flow of the air flow in the air guiding channel and the settlement of more TPV elastomer particles from the rotating air flow. However, an overly long air guiding channel length will excessively occupy the storage space inside the storage bin body 1.

[0038] In some preferred embodiments, as Figure 2 shown, a particle filter screen 141 is arranged at the middle and upper position inside the air outlet pipe 14, and the periphery of the particle filter screen 141 is fixed inside the air outlet pipe 14 through an installation structure, so that the air flow inside the air outlet pipe 14 can be discharged only after passing through the filtration of the particle filter screen 141. The mesh diameter of the particle filter screen 141 is usually relatively large, and generally only needs to be slightly smaller than the diameter of the TPV elastomer particles.

[0039] Most of the TPV elastomer particles are separated from the air flow through the spiral air guiding channel before using the particle filter screen 141 to filter the air flow, which can prevent a large number of TPV elastomer particles in the air flow from aggregating at the particle filter screen 141 under the action of the air flow, blocking the inlet of the mesh holes of the particle filter screen 141, making the conveying air flow unable to flow out through the air outlet pipe 14, and thus unable to form a conveying air flow cycle in the storage bin body 1, affecting the conveying effect of the pneumatic conveying pipeline.

[0040] In a preferred embodiment, as Figure 2As shown, a discharge valve 131 and a valve driver 132 are provided at the discharge opening 13. The discharge valve 131 is arranged across the discharge opening 13 and can block the discharge opening 13 when it is closed, enabling the TPV particles to be collected and stored in the storage bin body 1. When the discharge valve 131 is opened, the TPV particles can be discharged from the storage bin body 1 and loaded into a packaging bag for packaging and shipment. The valve driver 132 can use various devices capable of driving the discharge valve 131 to open and close, such as a driving motor, a driving rod, a handwheel, etc. The valve driver 132 is drivingly connected to the discharge valve 131, and the opening and closing of the discharge valve 131 can be controlled through the valve driver 132, so that when the discharge valve 131 is opened, the TPV elastomer particles stored in the storage bin body 1 can be discharged from the storage bin body 1.

[0041] In a further preferred embodiment, as Figure 2 and Figure 3 shown, the discharge valve includes a discharge valve body 1311 and a rotary valve plate 1312. The discharge valve body 1311 is fixed at the discharge opening 13, and a cavity is provided inside the discharge valve body 1311. The rotary valve plate 1312 is rotatably arranged in this cavity through a rotating shaft. A plurality of valve body material holes are provided on the discharge valve body 1311, and a plurality of valve plate material holes are correspondingly provided on the rotary valve plate 1312. As the discharge valve body 1311 rotates, the valve plate material holes on the rotary valve plate 1312 can communicate with or be isolated from the valve body material holes on the discharge valve body 1311, thereby opening or closing the discharge opening 13.

[0042] The valve driver 132 selects a driving motor. A driving gear is fixed on the output shaft of the valve driver 132, and a valve plate driving tooth is provided on the outer peripheral surface of the rotary valve plate 1312. The driving gear meshes with the valve plate driving tooth on the rotary valve plate 1312. When the valve driver 132 works, it can drive the rotary valve plate 1312 to rotate through the rotation of the driving gear, controlling the closing and opening of the discharge opening 13.

[0043] In an embodiment of the present application, as Figure 1 shown, a packaging bag fixing frame 21 is provided on the bin support 2. The packaging bag fixing frame 21 is provided on the bin support 2 below the discharge opening 13. By using the packaging bag fixing frame 21, the opening of the packaging bag for packaging the TPV elastomer particles can be fixed, so that the opening of the packaging bag is opened and fixed on the packaging bag fixing frame 21. At this time, when the discharge opening 13 is opened, the TPV elastomer particles in the storage bin body 1 can automatically flow into the packaging bag for packaging the TPV elastomer particles.

[0044] In a preferred embodiment, as Figure 1 and Figure 4As shown in the figure, the packaging bag fixing bracket 21 includes a packaging bag fixing rod 211 and a movable clamping rod 212. Two packaging bag fixing rods 211 are horizontally fixed on the bin body bracket 2 and are respectively located on both sides of the material discharge opening 13. Two movable clamping rods 212 are respectively rotatably arranged outside one packaging bag fixing rod 211 and can clamp the packaging bag fixing rod 211 under the action of a spring, clamping the opening of the packaging bag between the movable clamping rod 212 and the packaging bag fixing rod 211 to form a fixation of the opening of the packaging bag.

[0045] Specifically, two clamping rod mounting plates 213 are arranged on the packaging bag fixing bracket 21 outside the packaging bag fixing rod 211, and the two clamping rod mounting plates 213 are respectively arranged at positions corresponding to the two ends of the packaging bag fixing rod 211. A clamping cam 214 is fixedly arranged on the outer side surface of the clamping rod mounting plate 213, and the rotating shafts of the movable clamping rods 212 respectively pass through the two clamping cams 214 and the two clamping rod mounting plates 213 and are rotatably connected to the clamping rod mounting plates 213.

[0046] A sliding groove is arranged on the outer side of the side rod body of the movable clamping rod 212, and the moving pressure rod 215 is slidably connected to the side rod body of the movable clamping rod 212 through the sliding groove. A clamping tension spring 216 is arranged between one end of the movable pressure rod 215 and the rotating shaft of the movable clamping rod 212, and the other end of the movable pressure rod 215 passes through the side rod body of the movable clamping rod 212 and extends to the side of the clamping cam 214. The moving pressure rod 215 has a tendency to slide towards the rotating shaft direction of the movable clamping rod 212 under the elastic force of the clamping tension spring 216, so that the moving pressure rod 215 abuts and presses against the outer edge of the clamping cam 214.

[0047] The outer edge contour of the clamping cam 214 is set such that under the pressing force of the movable pressure rod 215 on the clamping cam 214, the movable clamping rod 212 generates a rotational force towards the packaging bag fixing rod 211, so that the movable clamping rod 212 clamps the packaging bag fixing rod 211 with a certain clamping force, thereby being able to clamp and fix the mouth of a packaging bag with a certain weight between the movable clamping rod 212 and the packaging bag fixing rod 211. By selecting a clamping cam 214 with a certain shape and a clamping tension spring 216 with a certain spring constant, a certain clamping force can be formed between the movable clamping rod 212 and the packaging bag fixing rod 211, thereby clamping a packaging bag with a certain weight on the packaging bag fixing bracket 21.

[0048] In a specific embodiment, as Figure 1 and Figure 4 shown, a packaging bag induction button 217 is arranged on the packaging bag fixing rod 211. When the bag mouth of the packaging bag is fixed between the movable clamping rod 212 and the packaging bag fixing rod 211, the packaging bag will press the packaging bag induction button 217 and trigger the packaging bag induction button 217.

[0049] The induction button 217 of the packaging bag is connected to the early discharging port 13 through a wire and is connected to the valve driver 132. So that the valve driver 132 can only drive the discharging port 13 to open when the induction button 217 of the packaging bag is triggered, that is, when a packaging bag is clamped between the movable clamping rod 212 and the packaging bag fixing rod 211, thereby ensuring that the TPV elastomer particles discharged from the discharging port 13 can be loaded into the packaging bag and preventing the discharging port 13 from being accidentally opened when the packaging bag is not fixed on the packaging bag fixing frame 21, resulting in the loss of TPV elastomer particles. And it can automatically close the discharging port 13 when the TPV elastomer particles in the packaging bag reach the set weight and the packaging bag slides off between the movable clamping rod 212 and the packaging bag fixing rod 211, realizing the quantitative packaging of TPV elastomer particles.

[0050] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A storage bin for TPV elastomer particles, comprising a storage bin body (1) and a bin support (2), the storage bin body (1) being arranged on the bin support (2), characterized in that, A wind conveying interface (11), an air outlet (12) and a discharging opening (13) are provided on the storage bin body (1). The wind conveying interface (11) is arranged at the upper part of the storage bin body (1), the discharging opening (13) is arranged at the bottom of the storage bin body (1), the air outlet (12) is arranged on the top surface of the storage bin body (1), and an air outlet pipe (14) extending downward is fixed on the storage bin body (1) on the side wall of the air outlet (12).

2. The storage bin for TPV elastomer particles according to claim 1, characterized in that, A wind guiding spiral fin (15) is arranged between the pipe wall of the air outlet pipe (14) and the side wall of the storage bin body (1). The wind guiding spiral fin (15) divides the space between the air outlet pipe (14) and the storage bin body (1) into a spiral wind guiding channel, and the communication port between the wind conveying interface (11) and the storage bin body (1) is arranged at the top of the wind guiding channel.

3. The storage bin for TPV elastomer particles according to claim 2, characterized in that, The wind guiding spiral fin (15) inclines downward from the side wall of the storage bin body (1) to the air outlet pipe (14).

4. The storage bin for TPV elastomer particles according to claim 3, characterized in that, The wind guiding spiral fin (15) rotates around the side wall of the air outlet pipe (14) for at least one and a half turns.

5. The storage bin for TPV elastomer particles according to claim 1, characterized in that, A particle filter screen (141) is arranged in the air outlet pipe (14), and the mesh diameter of the particle filter screen (141) is smaller than the diameter of the TPV elastomer particles.

6. The storage bin for TPV elastomer particles according to claim 1, characterized in that, A discharging valve (131) and a valve driver (132) are arranged at the discharging opening (13). The valve driver (132) is drivingly connected to the discharging valve (131) so as to be able to drive the discharging valve (131) to open and discharge the TPV elastomer particles stored in the storage bin body (1).

7. The storage bin for TPV elastomer particles according to claim 6, characterized in that, The discharging valve comprises a discharging valve body (1311) and a rotary valve plate (1312). A valve body material hole is arranged on the discharging valve body (1311), a valve plate material hole is arranged on the rotary valve plate (1312), and the rotary valve plate (1312) is rotatably connected to the discharging valve body (1311) and can rotate under the drive of the valve driver (132) so that the valve plate material hole corresponds to or intersects with the valve body material hole.

8. The storage bin for TPV elastomer particles according to claim 1, characterized in that, A packaging bag fixing frame (21) is arranged on the bin body support (2), and the packaging bag fixing frame (21) is arranged below the discharging opening (13).

9. The storage bin for TPV elastomer particles according to claim 8, characterized in that, The packaging bag fixing bracket (21) includes a packaging bag fixing rod (211) and a movable clamping rod (212). The packaging bag fixing rod (211) is fixed on the bin bracket (2). A clamping rod mounting plate (213) is arranged on the outer side of the packaging bag fixing rod (211). A clamping cam (214) is fixedly arranged on the clamping rod mounting plate (213). The movable clamping rod (212) is rotatably mounted on the clamping rod mounting plate (213) through a rotating shaft. A moving pressure rod (215) is slidably arranged on the movable clamping rod (212). A clamping tension spring (216) is arranged between the moving pressure rod (215) and the rotating shaft of the movable clamping rod (212). The moving pressure rod (215) abuts against the clamping cam (214) under the action of the clamping tension spring (216), so that the movable clamping rod (212) clamps the packaging bag fixing rod (211).

10. The storage bin for TPV elastomer particles according to claim 9, characterized in that, A packaging bag induction button (217) is arranged on the packaging bag fixing rod (211). The packaging bag induction button (217) is connected to the material discharging port (13) and can be triggered when the opening of the TPV elastomer particle packaging bag is clamped between the movable clamping rod (212) and the packaging bag fixing rod (211).

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