High-performance halogen-free flame-retardant reinforced PP extrusion equipment
Patent Information
- Application Number
- CN202522488286.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-24
- Publication Date
- 2026-10-16
- Estimated Expiration
- 2035-11-24
AI Technical Summary
例如传统的挤出设备装置通常不具备对大颗粒原料进行预处理的功能，当PP原料中含有较大颗粒时，这些大颗粒在挤出过程中可能会导致挤出产品表面不光滑、内部存在孔洞等缺陷，影响产品的质量和性能，有待改进
1．本实用新型通过设置筛选斗与一号筛网，便于对原料进行初步筛选，将大颗粒原料拦截并引导至粉碎箱进行进一步处理，其次，粉碎箱内配备的转轴与切割刀，能够对大颗粒原料进行切割粉碎，降低大颗粒原料的粒径，通过二号筛网的设置，可以切割粉碎之后的原料进一步筛分，符合粒径要求的原料排入挤出机壳内，而不符合要求的原料通过输送机壳与螺旋输送叶片进行输送，并重新排入粉碎箱内再次进行切割粉碎，如此循环往复，避免了因大颗粒原料导致的挤出产品缺陷，提高了产品质量。
Smart Images
Figure CN224856179U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of extrusion equipment technology, and more specifically to a high-performance halogen-free flame-retardant reinforced PP extrusion equipment. Background Technology
[0002] High-performance halogen-free flame-retardant reinforced PP is a polypropylene (PP) composite material with enhanced material properties through the addition of halogen-free flame retardants. It possesses high flame retardancy, high mechanical properties, and thermal stability, and is widely used in electronics, automotive, aerospace, and other fields. Currently, the production and processing of PP (polypropylene composites) requires the use of extrusion equipment to melt and extrude the PP raw materials. However, existing extrusion equipment often has some problems when processing PP raw materials. For example, traditional extrusion equipment typically lacks the function of pre-treating large particles of raw materials. When the PP raw material contains large particles, these large particles may cause defects such as an uneven surface and internal pores in the extruded product during the extrusion process, affecting the product's quality and performance, which needs improvement. Utility Model Content
[0003] In order to overcome the above-mentioned defects of the prior art, this utility model provides a high-performance halogen-free flame-retardant reinforced PP extrusion equipment to solve the problems existing in the background art.
[0004] This utility model provides the following technical solution: a high-performance halogen-free flame-retardant reinforced PP extrusion equipment, including a base, an extruder housing fixedly installed on the top of the base, an extrusion screw provided inside the extruder housing, an extrusion motor fixedly installed on the left side of the top of the base, the left end of the extrusion screw fixedly installed on the output end of the extrusion motor via a coupling, a feed hopper fixedly connected to the left side of the top of the extruder housing, a screening hopper above the feed hopper, a No. 1 screen provided inside the screening hopper, the No. 1 screen tilted downward to the right, limit strips fixedly connected to the left and right sides of the No. 1 screen, limit grooves formed on the left and right sides of the inner wall of the screening hopper, and the outer wall of the limit strips... A crushing box is fixedly installed on the right side of the screening hopper, which is inserted into the limiting groove. The crushing box has a rotating shaft inside, and multiple cutting blades are fixedly installed on the outer wall of the rotating shaft. A second screen is installed at the bottom inside the crushing box, and the second screen is inclined to the lower right. A conveyor housing is fixedly installed on the right side of the crushing box. A conveyor shaft is installed inside the conveyor housing, and spiral conveying blades are fixedly installed on the outer wall of the conveyor shaft. A second drive motor is fixedly installed at the bottom of the conveyor housing. The output end of the second drive motor extends into the interior of the conveyor housing and is fixedly installed at the bottom of the conveyor shaft. The top end of the conveyor shaft is rotatably installed on the top end of the inner wall of the conveyor housing through a sealed bearing.
[0005] Furthermore, a heating shield is fixedly installed on the outer wall of the extruder housing, and an electric heating tube is fixedly installed inside the heating shield. The heating shield is located outside the extruder housing.
[0006] Furthermore, support frames are fixedly installed at the four corners below the screening hopper, and the bottom of the support frames is fixedly installed on the top of the base. A baffle is attached to the front of the screening hopper, and the back of the baffle is fixedly installed on the front of the No. 1 screen. An iron positioning block is fixedly installed in the middle of the back of the No. 1 screen. A positioning port is opened at the rear of the inner wall of the screening hopper. An electromagnetic block is fixedly embedded inside the positioning port. The outer wall of the iron positioning block is inserted into the inside of the positioning port. The iron positioning block is located on the front of the electromagnetic block, and the iron positioning block and the electromagnetic block are magnetically connected.
[0007] Furthermore, a No. 1 opening is provided above the screen hopper and the crushing box. The No. 1 opening is located above the right side of the No. 1 screen and is tilted to the lower right.
[0008] Furthermore, a second opening is provided between the screening hopper and the crushing box at the bottom, the second opening is inclined to the lower left, and the bottom of the inner wall of the crushing box is inclined to the lower left.
[0009] Furthermore, a No. 1 drive motor is fixedly installed in the middle of the top of the crushing box, and the output end of the No. 1 drive motor extends into the interior of the crushing box and is fixedly installed at the top of the rotating shaft through a coupling.
[0010] Furthermore, a first guide tube is fixedly installed below the crushing box and the conveyor housing. The first guide tube is located above the right side of the second screen, and a second guide tube is fixedly installed above the crushing box and the conveyor housing.
[0011] The technical effects and advantages of this utility model are as follows: 1. This utility model, by setting up a screening bucket and a first screen, facilitates the initial screening of raw materials, intercepting large particles and guiding them to the crushing box for further processing. Secondly, the rotating shaft and cutting blades equipped in the crushing box can cut and crush large particles, reducing their particle size. Through the setting of a second screen, the cut and crushed raw materials can be further screened. Raw materials that meet the particle size requirements are discharged into the extruder housing, while raw materials that do not meet the requirements are conveyed through the conveyor housing and spiral conveyor blades and discharged back into the crushing box for cutting and crushing again. This cycle is repeated to avoid defects in extruded products caused by large particles and improve product quality.
[0012] 2. This utility model achieves rapid positioning and stable installation of the No. 1 screen through the cooperation of the screening hopper, No. 1 screen, baffle, limiting strip, limiting groove, positioning port, iron positioning block and electromagnetic block. When it is necessary to clean or replace the No. 1 screen, simply disconnect the power supply of the electromagnetic block to separate the iron positioning block from the electromagnetic block, and the No. 1 screen can be easily taken out from the screening hopper. The operation is simple and quick, improving the maintenance efficiency of the No. 1 screen. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0014] Figure 2 This is a cross-sectional view of the overall structure of this utility model.
[0015] Figure 3 This is a cross-sectional schematic diagram of the screening hopper, No. 1 screen, limiting strip, crushing box and conveyor shell structure of this utility model.
[0016] Figure 4 This is an enlarged schematic diagram of the structure at point A of this utility model.
[0017] Figure 5 This is a side cross-sectional view of the screening bucket, No. 1 screen, baffle and iron positioning block of this utility model.
[0018] Figure 6 This is an exploded view of the structure of the screening bucket, No. 1 screen, iron positioning block and electromagnetic block of this utility model.
[0019] The attached diagram is labeled as follows: 1. Base; 2. Extruder housing; 21. Extrusion motor; 22. Extrusion screw; 23. Heating protective cover; 24. Feed hopper; 3. Screening hopper; 31. No. 1 screen; 32. Baffle; 33. Limiting strip; 34. Limiting groove; 35. Positioning port; 36. Iron positioning block; 37. Electromagnetic block; 4. No. 1 through-hole; 5. No. 2 through-hole; 6. Crushing box; 61. No. 1 drive motor; 62. Rotating shaft; 63. Cutting blade; 64. No. 2 screen; 7. Conveyor housing; 71. No. 1 guide tube; 72. No. 2 drive motor; 73. Conveyor shaft; 74. No. 2 guide tube. Detailed Implementation
[0020] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. The high-performance halogen-free flame-retardant reinforced PP extrusion equipment involved in this utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0021] Example 1: like Figure 1-6 As shown, a high-performance halogen-free flame-retardant reinforced PP extrusion equipment includes a base 1, an extruder housing 2 fixedly installed on the top of the base 1, an extrusion screw 22 inside the extruder housing 2, an extrusion motor 21 fixedly installed on the left side of the top of the base 1, the left end of the extrusion screw 22 fixedly installed on the output end of the extrusion motor 21 through a coupling, a heating shield 23 fixedly installed on the outer wall of the extruder housing 2, an electric heating tube fixedly installed inside the heating shield 23, the heating shield 23 is located outside the extruder housing 2, the output end of the extrusion motor 21 drives the extrusion screw 22 to rotate inside the extruder housing 2, and the heat generated by the electric heating tube inside the heating shield 23 realizes the melting and extrusion operation of the PP raw material inside the extruder housing 2. A feed hopper 24 is fixedly connected to the top left side of the extruder housing 2. A screening hopper 3 is located above the feed hopper 24. Support frames are fixedly installed at the four corners below the screening hopper 3, and the bottom ends of the support frames are fixedly installed on the top of the base 1. A first screen 31 is installed inside the screening hopper 3, and the first screen 31 is inclined to the lower right. A crushing box 6 is fixedly installed on the right side of the screening hopper 3. A rotating shaft 62 is installed inside the crushing box 6, and multiple cutting blades 63 are fixedly installed on the outer wall of the rotating shaft 62. A first drive motor 61 is fixedly installed in the middle of the top of the crushing box 6. The output end of the first drive motor 61 extends into the interior of the crushing box 6 and is fixedly installed on the top of the rotating shaft 62 through a coupling. A first opening 4 is opened above the screening hopper 3 and the crushing box 6. The first opening 4 is located at the first screen. Above the right side of mesh 31, the first opening 4 slopes downwards to the right. A second opening 5 is provided below the screening hopper 3 and the crushing box 6, sloping downwards to the left. The bottom of the inner wall of the crushing box 6 slopes downwards to the left. A second screen 64 is installed at the bottom inside the crushing box 6, sloping downwards to the right. A conveyor housing 7 is fixedly installed on the right side of the crushing box 6. A conveyor shaft 73 is located inside the conveyor housing 7. Spiral conveyor blades are fixedly installed on the outer wall of the conveyor shaft 73. A second drive motor 72 is fixedly installed at the bottom of the conveyor housing 7. The output end of the second drive motor 72 extends into the interior of the conveyor housing 7 and is fixedly installed at the bottom of the conveyor shaft 73. The top end of the conveyor shaft 73 is rotatably mounted on the top of the inner wall of the conveyor housing 7 via a sealed bearing. A first guide pipe 71 is fixedly installed below the crushing box 6 and the conveyor housing 7. The first guide pipe 71 is located above and to the right of the second screen 64. When the PP raw material enters the screening hopper 3, it is initially screened by the first screen 31. Raw materials with the required particle size fall into the feed hopper 24 through the first screen 31 and then into the extruder housing 2. Raw materials with larger particle sizes are intercepted by the first screen 31. Under the inclined guiding action of the first screen 31, these large particles enter the crushing box 6 through the first outlet 4. The output end of the first drive motor 61 drives the rotating shaft 62 and the cutting blade 63 to rotate, cutting and crushing the large particles. The crushed material falls into the second screen 64. On screen 64, raw materials with the required particle size fall through the second screen 64 into the bottom of the inner wall of the crushing box 6, then through the second opening 5 into the lower part of the screening hopper 3, and into the extruder housing 2. Raw materials that do not meet the requirements are retained on the second screen 64 and, under the inclined guiding action of the second screen 64, enter the first guide tube 71, and are then transported to the inside of the conveyor housing 7. The second drive motor 72 drives the conveyor shaft 73 and the spiral conveyor blades to rotate, conveying the raw materials that do not meet the requirements upwards, and then discharge them back into the crushing box 6 through the second guide tube 74 for further cutting and crushing. This cycle continues until all raw material particles meet the requirements and enter the extruder housing 2. In this application, the aperture sizes of the first screen 31 and the second screen 64 are the same.All are made of high-strength, wear-resistant metal, and their aperture size can be customized according to actual production needs.
[0022] Example 2: like Figure 1-6 As shown, limit strips 33 are fixedly connected to the left and right sides of the No. 1 screen 31. Limit grooves 34 are opened on the left and right sides of the inner wall of the screening hopper 3. The outer wall of the limit strips 33 is inserted into the inside of the limit grooves 34. A baffle 32 is attached to the front of the screening hopper 3. The back of the baffle 32 is fixedly installed on the front of the No. 1 screen 31. An iron positioning block 36 is fixedly installed in the middle of the back of the No. 1 screen 31. A positioning port 35 is opened at the rear of the inner wall of the screening hopper 3. An electromagnetic block 37 is fixedly embedded in the positioning port 35. The outer wall of the iron positioning block 36 is inserted into the inside of the positioning port 35. The iron positioning block 36 is located at... On the front of the electromagnetic block 37, the iron positioning block 36 is magnetically connected to the electromagnetic block 37. Through the insertion and cooperation of the limiting strip 33 and the limiting groove 34, it is convenient to support and limit the left and right sides of the No. 1 screen 31. The iron positioning block 36 is inserted into the positioning port 35 and magnetically connected to the electromagnetic block 37, which facilitates the positioning of the No. 1 screen 31. When it is necessary to clean or replace the No. 1 screen 31, simply disconnect the power supply of the electromagnetic block 37, so that the magnetic attraction between the iron positioning block 36 and the electromagnetic block 37 is lost, and the No. 1 screen 31 can be easily removed from the screening hopper 3. The operation is simple and quick.
[0023] In summary, as Figure 1-6As shown, this high-performance halogen-free flame-retardant reinforced PP extrusion equipment operates as follows: PP raw materials enter the screening hopper 3 and undergo preliminary screening under the action of the first screen 31. Raw materials with the required particle size fall through the first screen 31 into the feed hopper 24 and then smoothly enter the extruder housing 2 to participate in the subsequent extrusion process. Larger particles are intercepted by the first screen 31 and slide along the inclined first screen 31 through the first passage 4 into the crushing box 6. At this time, the output end of the first drive motor 61 drives the rotating shaft 62 and the cutting blade 63 to rotate, cutting and crushing the large particles. The crushed material falls onto the second screen 64. Raw materials with the required particle size pass through the second screen 64 and fall into the bottom of the inner wall of the crushing box 6, then pass through the second passage... The material returns to the bottom of the screening hopper 3 and eventually falls into the extruder housing 2. For raw materials whose particle size still does not meet the requirements, they are trapped on the second screen 64. Under the inclined guidance of the second screen 64, these raw materials enter the first guide tube 71 and are transported to the inside of the conveyor housing 7. Then, the second drive motor 72 drives the conveyor shaft 73 and the spiral conveyor blades to rotate, conveying the raw materials that do not meet the requirements upward. They are then discharged back into the crushing box 6 through the second guide tube 74 for cutting and crushing again. This cycle is repeated until all the raw materials meet the requirements and enter the extruder housing 2, thereby effectively avoiding defects in the extruded products caused by large particles and significantly improving product quality.
[0024] All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. The installation methods between equipment are also the same as conventional installation methods in the prior art. For example, the connection position of valve components is provided with anti-leakage rubber strips, the outside of threaded rods or lead rods is provided with dust covers, and the equipment can be driven by either built-in batteries or external power supply. The control method is automatic control by a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art and is common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, this utility model will not explain the control method and circuit connection in detail. The controller can be an external controller or installed in a position that does not affect the use of this device. The controller can play a control role for the electrical components mentioned in this document, and the controller is a conventional known device.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change. Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other. Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A high-performance halogen-free flame-retardant reinforced PP extrusion equipment, comprising a base (1), characterized in that, An extruder housing (2) is fixedly installed on the top of the base (1). An extrusion screw (22) is provided inside the extruder housing (2). An extrusion motor (21) is fixedly installed on the left side of the top of the base (1). The left end of the extrusion screw (22) is fixedly installed on the output end of the extrusion motor (21) through a coupling. A feed hopper (24) is fixedly connected to the left side of the top of the extruder housing (2). A screening hopper (3) is provided above the feed hopper (24). A first screen (31) is provided inside the screening hopper (3). The first screen (31) is inclined to the lower right. Limiting strips (33) are fixedly connected to the left and right sides of the first screen (31). Limiting grooves (34) are opened on the left and right sides of the inner wall of the screening hopper (3). The outer wall of the limiting strip (33) is inserted into the inside of the limiting groove (34). A crushing box (6) is fixedly installed on the right side. A rotating shaft (62) is provided inside the crushing box (6). Multiple cutting blades (63) are fixedly installed on the outer wall of the rotating shaft (62). A second screen (64) is installed at the bottom inside the crushing box (6). The second screen (64) is tilted to the lower right. A conveyor housing (7) is fixedly installed on the right side of the crushing box (6). A conveyor shaft (73) is provided inside the conveyor housing (7). Spiral conveying blades are fixedly installed on the outer wall of the conveyor shaft (73). A second drive motor (72) is fixedly installed at the bottom end of the conveyor housing (7). The output end of the second drive motor (72) extends into the inside of the conveyor housing (7) and is fixedly installed at the bottom end of the conveyor shaft (73). The top end of the conveyor shaft (73) is rotatably installed on the top end of the inner wall of the conveyor housing (7) through a sealed bearing.
2. The high-performance halogen-free flame-retardant reinforced PP extrusion equipment according to claim 1, characterized in that: A heating shield (23) is fixedly installed on the outer wall of the extruder housing (2), and an electric heating tube is fixedly installed inside the heating shield (23). The heating shield (23) is located outside the extruder housing (2).
3. The high-performance halogen-free flame-retardant reinforced PP extrusion equipment according to claim 1, characterized in that: Support frames are fixedly installed at the four corners below the screening hopper (3). The bottom end of the support frame is fixedly installed on the top of the base (1). A baffle (32) overlaps the front of the screening hopper (3). The back of the baffle (32) is fixedly installed on the front of the No. 1 screen (31). An iron positioning block (36) is fixedly installed in the middle of the back of the No. 1 screen (31). A positioning port (35) is opened at the rear of the inner wall of the screening hopper (3). An electromagnetic block (37) is fixedly embedded inside the positioning port (35). The outer wall of the iron positioning block (36) is inserted into the inside of the positioning port (35). The iron positioning block (36) is located on the front of the electromagnetic block (37). The iron positioning block (36) and the electromagnetic block (37) are magnetically connected.
4. The high-performance halogen-free flame-retardant reinforced PP extrusion equipment according to claim 1, characterized in that: A No. 1 opening (4) is provided above the screening hopper (3) and the crushing box (6). The No. 1 opening (4) is located above the right side of the No. 1 screen (31) and is tilted to the lower right.
5. The high-performance halogen-free flame-retardant reinforced PP extrusion equipment according to claim 1, characterized in that: A second opening (5) is provided between the screening hopper (3) and the crushing box (6) at the bottom. The second opening (5) is inclined to the lower left, and the bottom of the inner wall of the crushing box (6) is inclined to the lower left.
6. The high-performance halogen-free flame-retardant reinforced PP extrusion equipment according to claim 1, characterized in that: A drive motor (61) is fixedly installed in the middle of the top of the crushing box (6). The output end of the drive motor (61) extends into the interior of the crushing box (6) and is fixedly installed at the top of the rotating shaft (62) by a coupling.
7. The high-performance halogen-free flame-retardant reinforced PP extrusion equipment according to claim 1, characterized in that: A first conduit (71) is fixedly installed below the crushing box (6) and the conveyor housing (7). The first conduit (71) is located above the right side of the second screen (64). The second conduit (74) is fixedly installed above the crushing box (6) and the conveyor housing (7).