A polypropylene processing material grinding device
By combining a dual crushing component and a reciprocating moving component with a blower air system, the problem of material accumulation dead corners in polypropylene crushing equipment is solved, achieving a more uniform crushing effect and higher crushing efficiency, meeting the particle size requirements of subsequent processes.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGZHOU KAIJIAN PLASTIC CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-06-05
AI Technical Summary
Existing polypropylene pulverizing equipment is prone to material accumulation dead zones during the pulverizing process, resulting in large differences in particle size, which cannot meet the uniformity requirements of subsequent granulation and injection molding processes.
It adopts a dual crushing component and a reciprocating moving component in conjunction with a blower air blowing system. The synchronous rotation of the rotating rod and rotating column is driven by the motor. The airflow generated by the blower blows up the material at the bottom, and the slide of the reciprocating moving component moves the air blowing port in the tank to ensure that the material is in full contact with the blades and reduce the crushing dead zone.
It significantly improves the uniformity and efficiency of polypropylene pulverization, ensuring that the particle size of the pulverized particles meets the requirements of subsequent processes, and thus improves product quality.
Smart Images
Figure CN224323385U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of polypropylene processing technology, and in particular to a material crushing device for polypropylene processing. Background Technology
[0002] Polypropylene is a widely used thermoplastic polymer that is polymerized from propylene monomers. It has many excellent properties, including high chemical resistance, which can resist the erosion of various acid, alkali and salt solutions. Its low density makes the products relatively lightweight. Polypropylene needs to be crushed during processing.
[0003] Existing polypropylene crushing equipment mostly uses fixed blades to cut materials. In actual operation, due to the natural accumulation characteristics of materials falling into the tank, the bottom and corners of the tank often become dead corners where materials accumulate, making it difficult for them to fully contact the rotating blades. This results in a large difference in particle size after crushing, which cannot meet the strict requirements for uniform particle size of raw materials in subsequent processes such as granulation and injection molding. Therefore, a material crushing equipment for polypropylene processing is proposed to solve the above problems. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a material shredding device for polypropylene processing, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A material crushing device for polypropylene processing includes a tank body. Support legs are fixedly installed on both sides of the tank body. A through hole is opened on the outer side of the tank body, and a fixed box is fixedly installed in the through hole. The fixed box is connected to the tank body. An elongated hole is opened on one side of the fixed box. A reciprocating moving component is arranged inside the fixed box. A slider is arranged in the fixed box through the reciprocating moving component. A fan is fixedly installed on one side of the left support leg. An air supply pipe is fixedly installed on one side of the fan. The other end of the air supply pipe passes through the elongated hole and is fixedly connected to an air blowing port. The air blowing port is fixedly connected to the slider and faces the inner wall of the tank body. A dual crushing component is arranged inside the tank body. A transmission component is arranged between the dual crushing component and the reciprocating moving component.
[0007] Preferably, the reciprocating moving assembly includes a fixed box with a circular hole on one side, a lead screw installed in the circular hole, one end of the lead screw being rotatably connected to the inner wall of one side of the fixed box, a guide rod being fixedly installed inside the fixed box, and a slider being threadedly sleeved on the outside of the guide rod and the lead screw.
[0008] Preferably, the dual crushing assembly includes a motor fixedly installed on one side of the tank, the output end of the motor rotating through the tank and fixedly connected to a rotating rod, and a first synchronous pulley fixedly sleeved on the other end of the rotating rod.
[0009] Preferably, a circular hole is provided on one side of the tank body, and a rotating column is provided in the circular hole. One end of the rotating column is rotatably connected to the inner wall of one side of the tank body, and a second synchronous pulley is fixedly sleeved on the other end of the rotating column. The second synchronous pulley and the first synchronous pulley share the same first synchronous belt. Multiple blades are fixedly connected to the outer side of both the rotating rod and the rotating column.
[0010] Preferably, the transmission assembly includes a fourth synchronous pulley and a third synchronous pulley fixedly sleeved at the other end of the rotating rod and the other end of the lead screw, respectively, and the fourth synchronous pulley and the third synchronous pulley share the same second synchronous belt.
[0011] Preferably, the tank body has a feed inlet on the top side, and the feed inlet is connected to the tank body.
[0012] Preferably, the bottom side of the tank is provided with a slot, a base plate is inserted into the slot, and a handle is fixedly installed on one side of the base plate. The handle is U-shaped.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] 1. The rotating rod is driven by a motor, which in turn drives the rotating column via the first synchronous pulley, the first synchronous belt, and the second synchronous pulley. This causes the rotating rod and multiple blades on the outer side of the rotating column to rotate synchronously, performing double cutting on the polypropylene. At the same time, the airflow generated by the blower blows through the air supply pipe and the air inlet onto the circular inner wall of the tank, forming a vortex that blows up the material at the bottom, thereby increasing the contact frequency between the material and the blades. In addition, the fourth synchronous pulley, the second synchronous belt, and the third synchronous pulley in the transmission assembly drive the lead screw to rotate, causing the slider to move the air inlet back and forth within the fixed box. This ensures that the material in all parts of the tank can be blown up, reducing the dead corners in the crushing process and making the polypropylene crushed more uniformly, thus significantly improving the crushing efficiency.
[0015] 2. This equipment, through the cooperation of a blower, air supply pipe, and air inlet, utilizes the guiding effect of the circular inner wall of the tank to effectively blow up the material accumulated at the bottom. At the same time, the structural design of the lead screw, guide rod, and slider in the reciprocating moving component allows the air inlet to reciprocate within the fixed box, expanding the airflow coverage. Combined with the high-speed cutting of the rotating rod, rotating column, and blades in the dual crushing component, this ensures that the polypropylene material moves fully within the tank and is crushed, avoiding uneven crushing caused by material accumulation. This results in the crushed polypropylene particles having a particle size that better meets the requirements of subsequent processes, thus improving product quality. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present utility model;
[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;
[0018] Figure 3 This is a schematic diagram of some parts of the air supply duct structure of this utility model;
[0019] Figure 4 This is a schematic diagram of some parts of the blade structure of this utility model.
[0020] In the diagram: 1. Tank body; 2. Support leg; 3. Feed inlet; 4. Base plate; 5. Motor; 6. Rotating rod; 7. First synchronous pulley; 8. Rotating column; 9. Second synchronous pulley; 10. First synchronous belt; 11. Blade; 12. Fixing box; 13. Lead screw; 14. Third synchronous pulley; 15. Fourth synchronous pulley; 16. Second synchronous belt; 17. Guide rod; 18. Slider; 19. Fan; 20. Air supply pipe; 21. Air outlet. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Reference Figure 1-4 A material crushing device for polypropylene processing includes a tank body 1. Support legs 2 are fixedly installed on both sides of the tank body 1. A through hole is opened on the outer side of the tank body 1, and a fixed box 12 is fixedly installed inside the through hole, communicating with the tank body 1. An elongated hole is opened on one side of the fixed box 12, and a reciprocating moving assembly is arranged inside the fixed box 12. A slider 18 is arranged in the fixed box 12 through the reciprocating moving assembly. A blower 19 is fixedly installed on one side of the left support leg 2, and an air supply pipe 20 is fixedly installed on one side of the blower 19. The other end of the air supply pipe 20 passes through the elongated hole and is fixedly connected to an air outlet 21. The air outlet 21 is connected to... The slider 18 is fixedly connected, and the air inlet 21 faces the inner wall of the tank 1. The tank 1 is equipped with a dual crushing component, and a transmission component is provided between the dual crushing component and the reciprocating moving component. By providing a blower 19, the blower 19 is started simultaneously during the crushing process of polypropylene, and the gas is delivered to the air inlet 21 through the air supply pipe 20. Then the air inlet 21 blows the gas toward the inner wall of the tank 1. Since the inner wall of the tank 1 is circular, the gas will flow along the circular inner wall, thereby blowing up the polypropylene accumulated at the bottom, so that the blown polypropylene can better contact the blade 11.
[0023] Specifically, the transmission assembly includes a fourth synchronous pulley 15 and a third synchronous pulley 14 fixedly sleeved at the other end of the rotating rod 6 and the other end of the lead screw 13, respectively. The fourth synchronous pulley 15 and the third synchronous pulley 14 share the same second synchronous belt 16. The reciprocating motion assembly includes a circular hole on one side of the fixed box 12, in which the lead screw 13 is installed. One end of the lead screw 13 is rotatably connected to the inner wall of one side of the fixed box 12. A guide rod 17 is fixedly installed inside the fixed box 12. A slider 18 is threadedly sleeved on the outside of the guide rod 17 and the lead screw 13. The other end of the rotating rod 6 is fixedly sleeved with a fourth synchronous pulley 15. The fourth synchronous pulley 15 and the third synchronous pulley 14 share the same second synchronous belt 16. Therefore, under the meshing transmission of the second synchronous belt 16, the third synchronous pulley 14 will synchronously drive the lead screw 13 connected to it to rotate. This causes the slider 18 threaded on the outside of the lead screw 13 to drive the air inlet 21 fixed on one side to move back and forth in the fixed box 12, thereby blowing up the polypropylene accumulated in every area of the tank 1, which greatly improves the pulverization effect of polypropylene.
[0024] Specifically, the dual crushing assembly includes a motor 5 fixedly installed on one side of the tank body 1. The output end of the motor 5 rotates through the tank body 1 and is fixedly connected to a rotating rod 6. The other end of the rotating rod 6 is fixedly sleeved with a first synchronous pulley 7. A circular hole is opened on one side of the tank body 1, and a rotating column 8 is installed inside the circular hole. One end of the rotating column 8 is rotatably connected to the inner wall of one side of the tank body 1, and the other end of the rotating column 8 is fixedly sleeved with a second synchronous pulley 9. The second synchronous pulley 9 and the first synchronous pulley 7 share the same first synchronous belt 10. Multiple blades 11 are fixedly connected to the outer sides of both the rotating rod 6 and the rotating column 8. By installing the motor 5, in... When the polypropylene in tank 1 needs to be crushed, the motor 5 is started to drive the rotating rod 6 to rotate. Since the first synchronous pulley 7 is fixedly sleeved on the outside of the rotating rod 6, and the first synchronous pulley 7 and the second synchronous pulley 9 share the same first synchronous belt 10, the second synchronous pulley 9 will drive the rotating column 8 connected to it to rotate synchronously under the meshing transmission of the first synchronous belt 10. This allows multiple blades 11, which are fixedly connected to the outside of the rotating column 8 and the outside of the rotating rod 6, to perform double crushing of the polypropylene in tank 1. With the air blowing through the air blowing port 21, the dead corners that the blades 11 cannot crush can be reduced.
[0025] Specifically, a feed inlet 3 is provided on the top side of the tank body 1, and the feed inlet 3 is connected to the tank body 1. A slot is provided on the bottom side of the tank body 1, and a bottom plate 4 is inserted into the slot. A handle is fixedly installed on one side of the bottom plate 4. The handle is U-shaped and is used for feeding polypropylene through the feed inlet 3. When it is necessary to remove the crushed polypropylene, the handle on one side of the bottom plate 4 can be pulled to remove the bottom plate 4 from the slot in the tank body 1, and then the polypropylene will fall down due to inertia.
[0026] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power. The main controller can be any conventional known device, such as a computer, that can control the operation of the electrical components mentioned in the article.
[0027] In use: When performing polypropylene crushing operations, the operator first pours the polypropylene raw material to be crushed into the tank 1 through the feed inlet 3. Then, the motor 5 is started to drive the rotating rod 6 to rotate. Since the first synchronous wheel 7 is fixedly sleeved on the outside of the rotating rod 6, and the first synchronous wheel 7 and the second synchronous wheel 9 are meshed and driven by the first synchronous belt 10, the second synchronous wheel 9 will drive the rotating column 8 connected to it to rotate synchronously under the drive of the first synchronous belt 10. At this time, the multiple blades 11 fixedly connected to the outside of the rotating column 8 and the outside of the rotating rod 6 will cut and crush the polypropylene in the tank 1 at high speed. During the crushing process, the blower 19 is started synchronously. The airflow generated by the blower 19 is delivered to the air outlet 21 through the air supply pipe 20. Since the inner wall of the tank 1 is circular, the gas blown out of the air outlet 21 flows along the arc inner wall to form a vortex, blowing up the polypropylene material accumulated at the bottom of the tank 1 and suspending it in the tank 1, so that it can come into more full contact with the rotating blades 11, thereby improving the crushing effect. Efficiency is improved. Meanwhile, the fourth synchronous wheel 15, which is fixedly sleeved at the other end of the rotating rod 6, is connected to the third synchronous wheel 14 through the second synchronous belt 16. When the rotating rod 6 rotates, the third synchronous wheel 14 drives the lead screw 13 to rotate synchronously under the meshing action of the second synchronous belt 16. The slider 18, which is threaded on the outside of the lead screw 13, makes a reciprocating linear motion along the axial direction when the lead screw 13 rotates, thereby driving the air inlet 21, which is fixedly connected to the slider 18, to move back and forth in the fixed box 12. This design allows the air inlet 21 to cover every area inside the tank 1, ensuring that polypropylene accumulated in any corner can be blown up by the airflow, further enhancing the crushing effect. After the crushing operation is completed, the operator pulls the handle on one side of the bottom plate 4 to pull the bottom plate 4 out of the slot at the bottom of the tank 1. After losing the support of the bottom plate 4, the crushed polypropylene particles will fall naturally from the bottom of the tank 1 under the action of gravity. The operator can collect the fallen polypropylene by placing the collection box at the bottom of the tank 1 in advance.
[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A material shredding device for polypropylene processing, comprising a tank (1), characterized in that, Support legs (2) are fixedly installed on both sides of the tank (1). A through hole is opened on the outside of the tank (1). A fixed box (12) is fixedly installed in the through hole. The fixed box (12) is connected to the tank (1). A long hole is opened on one side of the fixed box (12). A reciprocating moving component is set inside the fixed box (12). A slider (18) is set in the fixed box (12) through the reciprocating moving component. A fan (19) is fixedly installed on one side of the left support leg (2). An air supply pipe (20) is fixedly installed on one side of the fan (19). The other end of the air supply pipe (20) passes through the long hole and is fixedly connected to an air blowing port (21). The air blowing port (21) is fixedly connected to the slider (18). The air blowing port (21) faces the inner wall of the tank (1). A double crushing component is set inside the tank (1). A transmission component is set between the double crushing component and the reciprocating moving component.
2. The material shredding equipment for polypropylene processing according to claim 1, characterized in that, The reciprocating moving assembly includes a fixed box (12) with a circular hole on one side, a lead screw (13) inside the circular hole, one end of the lead screw (13) being rotatably connected to the inner wall of one side of the fixed box (12), a guide rod (17) being fixedly installed inside the fixed box (12), and a slider (18) being threadedly sleeved on the outside of the guide rod (17) and the lead screw (13).
3. The material shredding equipment for polypropylene processing according to claim 1, characterized in that, The dual crushing assembly includes a motor (5) fixedly installed on one side of the tank (1), the output end of the motor (5) rotating through the tank (1) and fixedly connected to a rotating rod (6), and the other end of the rotating rod (6) being fixedly sleeved with a first synchronous wheel (7).
4. The material shredding equipment for polypropylene processing according to claim 3, characterized in that, A circular hole is provided on one side of the tank (1), and a rotating column (8) is provided in the circular hole. One end of the rotating column (8) is rotatably connected to the inner wall of one side of the tank (1), and the other end of the rotating column (8) is fixedly sleeved with a second synchronous wheel (9). The second synchronous wheel (9) and the first synchronous wheel (7) share the same first synchronous belt (10). Multiple blades (11) are fixedly connected to the outer sides of the rotating rod (6) and the rotating column (8).
5. The material shredding equipment for polypropylene processing according to claim 1, characterized in that, The transmission assembly includes a fourth synchronous pulley (15) and a third synchronous pulley (14) fixedly sleeved at the other end of the rotating rod (6) and the other end of the lead screw (13), respectively. The fourth synchronous pulley (15) and the third synchronous pulley (14) share the same second synchronous belt (16).
6. The material shredding equipment for polypropylene processing according to claim 1, characterized in that, The tank (1) has a feed inlet (3) on its top side, and the feed inlet (3) is connected to the tank (1).
7. The material shredding equipment for polypropylene processing according to claim 6, characterized in that, The bottom side of the tank (1) is provided with a slot, and a bottom plate (4) is inserted into the slot. A handle is fixedly installed on one side of the bottom plate (4), and the handle is U-shaped.