A granulation extrusion device for polypropylene nucleating agent

Abstract

The present invention discloses a granulation extrusion device for a polypropylene nucleating agent, which relates to the field of granulation extrusion devices and includes an extrusion granulation mechanism, wherein the extrusion granulation mechanism is fixedly mounted on a support frame, the support frame and a housing are fixed to each other, a partition plate is fixed to the housing, the partition plate has a notch, a second motor is fixed to the lower end surface of the partition plate, and a feed plate is fixed to the output shaft of the second motor, which contacts and slides with the partition plate. The granulation extrusion device for a polypropylene nucleating agent adopts a rotary feed mechanism to achieve continuous conveying of particles, and cooperates with a linked swinging kneading mechanism to provide a kneading force to the particles during the particle conveying process. The kneading of the particles can effectively remove debris adhered to the cut surface of the particles, and the screening effect of the screen plate can achieve separation of debris from the particles, thereby effectively ensuring the cleanliness of the particle surface and thus the production quality of the particles.

Description

Technical Field

[0001] The invention relates to the technical field of granulation extrusion devices, in particular to a granulation extrusion device for a polypropylene nucleating agent. Background Art

[0002] The main function of polypropylene nucleating agents is to improve the processing efficiency and physical and mechanical properties of polypropylene by changing its crystallization behavior. Specifically, it can shorten the molding cycle, improve transparency and gloss, enhance mechanical properties (such as rigidity and impact resistance), and improve heat distortion temperature.

[0003] In the production process of polypropylene nucleating agent, granulation needs to be carried out through a granulating device for subsequent use. Existing polypropylene nucleating agent granulating devices, such as the granulating device for producing polypropylene toughening nucleating agent with publication number CN220194789U, include a conveying pipe, a feed box and a stirring motor. A feed box is fixed on one side of the top of the conveying pipe, a stirring motor is installed on the outer wall of one side of the feed box, and a stirring structure is provided on the top of the feed box. The utility model is provided with a granulating mechanism, and the driving motor is started. The driving motor drives the driving gear to rotate inside the protective cover, and the driving gear drives the first cutting roller to rotate inside the chassis. At the same time, the driving gear drives the driven gear to rotate, and the driven gear drives the second cutting roller to rotate. With the mutual cooperation of the first cutting roller and the second cutting roller, the device realizes the function of facilitating granulation, thereby improving the working efficiency of the granulating device for producing polypropylene toughening nucleating agent when in use;

[0004] In actual use, the existing extrusion cutting granulation device has a problem that the particles are cut by a cutter to achieve granulation, so that a certain amount of debris will remain on the cut surface of the particles. Since the debris is adhered to the particles, traditional screening cannot remove it, which not only affects the appearance quality of the particles, but also causes the adhered debris to fall off during the subsequent bagging and transportation process. As a result, when the particles are subsequently poured out for use, the debris will fly, causing environmental pollution and a certain amount of material waste. Summary of the Invention

[0005] The object of the present invention is to provide a granulation extrusion device for a polypropylene nucleating agent to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a granulation extrusion device for a polypropylene nucleating agent, comprising an extrusion granulation mechanism, wherein the extrusion granulation mechanism is fixedly mounted on a support frame, the support frame and the box body are fixed to each other, a partition plate is fixed in the box body, a notch is provided on the partition plate, a second motor is fixed to the lower end face of the partition plate, a feed plate that contacts and slides with the partition plate is fixed on the output shaft of the second motor, and an opening for limiting the particles is provided on the feed plate, a cylinder connected to the box body by a bearing is fixed on the feed plate, a kneading mechanism that can swing back and forth is installed on the output shaft of the second motor, the kneading mechanism comprises a kneading plate with an upwardly curved arc structure on both sides that contacts and slides with the feed plate, and the kneading plate is used to knead the particles in the openings on the feed plate.

[0007] Preferably, the extrusion granulation mechanism includes a feeding box fixed on a support frame, and a storage box is fixed on the feeding box, and a pressing mechanism is installed on the storage box. A first motor is fixed on the side of the feeding box, and the output end of the first motor is fixed to a spiral conveying rod connected to a bearing in the feeding box. Through the above structure, the conveying and extrusion of the raw materials can be realized, thereby providing a basic guarantee for the realization of granulation.

[0008] Preferably, a granulation plate is installed on the right side of the feeding box, and granulation holes are evenly opened on the granulation plate, and a mounting sleeve installed on the side of the granulation plate is provided, and at the same time, a cutter is installed on the mounting sleeve for sliding connection with the granulation plate. Through the above structure, the cutting of the material extruded from the granulation holes can be realized, thereby realizing the granulation effect of the material.

[0009] Preferably, the pressing mechanism includes a fixed plate fixed in the storage box, and a slide rod is slidably connected to the fixed plate, and pressure plates are fixed on the slide rod at equal intervals. At the same time, the pressure plate is a conical structure. By moving the pressure plate up and down, the material can be pressed down, so that the material can better enter the feeding box and ensure the normal progress of granulation.

[0010] Preferably, one end of the sliding rod and the connecting rod are fixed to each other, and the other end of the connecting rod is fixed on the gear ring, and the gear ring is meshed with the half gear, and the half gear is fixed on the output shaft of the first motor. Through the transmission action between the gear ring and the half gear, the basic force can be provided for the up and down reciprocating motion of the sliding rod and the connecting rod, thereby ensuring the normal operation of the device.

[0011] Preferably, the upper side of the box body is provided with a material receiving port located below the granulation plate, and a material discharge port is provided on the left side of the box body, and a slag discharge port is provided on the lower side of the box body. At the same time, a left low and a high sieve plate are fixed obliquely in the box body, and the sieve plate can be used to screen the particles and debris, thereby ensuring that the surface of the particles is clean and avoiding debris residue.

[0012] Preferably, a baffle is fixed in the box body, and the baffle contacts and slides with the upper end surface of the feed plate. A dividing plate is also fixed in the box body, and the distance between the dividing plate and the feed plate is 1-5mm. The baffle can block the material, and with the function of the dividing plate, the particles can be separated, providing a basic guarantee for the subsequent kneading and impurity removal of the particles.

[0013] Preferably, the kneading mechanism includes a driving wheel fixed on the output shaft of the second motor, and the driving wheel is connected to the driven wheel through a belt, and the diameter of the driving wheel is larger than the diameter of the driven wheel. At the same time, the driven wheel is fixed on the rotating shaft, and the rotating shaft bearing is connected to the upper end face of the box. Through the above structure, a basic force can be provided for the rotation of the rotating shaft, thereby ensuring the normal operation of the device.

[0014] Preferably, a disc is fixed to the upper end of the rotating shaft, and a cam is fixed on the disc, and the cam and the rocker arm are slidably connected, and the rocker arm bearing is connected to the bracket, and the bracket is fixed to the upper end face of the box. Through the sliding action between the cam and the rocker arm, a basic force can be provided for the reciprocating swing of the bracket, thereby providing a basic guarantee for the kneading of the particles.

[0015] Preferably, the bracket and one end of the vertical rod are fixed to each other, and the vertical rod and the box body are slidably connected, and the other end of the vertical rod is fixed to the mounting plate. At the same time, a guide rod is slidably connected to the mounting plate, and the guide rod is symmetrically fixed on the kneading plate front and back. The kneading plate and one end of the spring are fixed to each other, and the other end of the spring is fixed to the mounting plate. Through the above structure, the rubbing and de-scaling effect of the particles can be achieved, the adhesion of debris on the surface of the particles can be avoided, and the production quality of the particles can be guaranteed.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. The granulation extrusion device of the polypropylene nucleating agent adopts a spiral extrusion granulation mechanism, which can realize the extrusion granulation effect of the raw materials and ensure the normal progress of granulation. In combination with the linked material pressing mechanism, it can provide downward pressure on the raw materials stored in the storage box, ensuring that the raw materials can be stably fed into the feeding box, effectively avoiding the accumulation of raw materials and blockage that affects the normal discharge of materials;

[0018] 2. The granulation extrusion device of the polypropylene nucleating agent adopts a rotary feeding mechanism to realize the continuous conveying of particles. In conjunction with the linked swinging kneading mechanism, it can provide kneading force to the particles during the particle conveying process. By kneading the particles, the debris adhering to the cut surface of the particles can be effectively removed. In conjunction with the elastic effect of the spring, it can effectively prevent the kneading force of the kneading plate on the material from being too large, which may cause the material to break, thereby ensuring the chip removal effect of the material. In conjunction with the screening effect of the screen plate, the separation of debris and particles can be achieved, thereby effectively ensuring the cleanliness of the particle surface and thus ensuring the production quality of the particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the device of the present invention;

[0020] Figure 2 This is a schematic side view of the overall three-dimensional structure of the device of the present invention;

[0021] Figure 3 This is a schematic diagram of the front cross-sectional three-dimensional structure of the extrusion granulation mechanism of the present invention;

[0022] Figure 4 This is a schematic diagram of the three-dimensional structure of the granulation plate and the cutting knife of the present invention;

[0023] Figure 5 This is a schematic diagram of the cross-sectional three-dimensional structure of the material pressing mechanism of the present invention;

[0024] Figure 6 This is a schematic diagram of the front cross-sectional three-dimensional structure of the box body of the present invention;

[0025] Figure 7 This is a schematic diagram of the bottom-view cross-sectional three-dimensional structure of the box body of the present invention;

[0026] Figure 8 It is a schematic diagram of the three-dimensional structure of the material kneading mechanism of the present invention.

[0027] Figure: 1. Extrusion granulation mechanism; 101. Feed box; 102. Storage box; 103. First motor; 104. Screw conveyor rod; 105. Granulation plate; 106. Mounting sleeve; 107. Cutter; 2. Pressing mechanism; 201. Fixing plate; 202. Sliding rod; 203. Pressing plate; 204. Connecting rod; 205. Gear ring; 206. Half gear; 3. Support frame; 4. Box body; 401. Material receiving port; 402. Discharging port; 403. Slag discharge port ; 404, screen plate; 405, baffle; 406, dividing plate; 5, partition plate; 501, notch; 502, second motor; 503, feed plate; 504, cylinder; 6, kneading mechanism; 601, driving wheel; 602, driven wheel; 603, rotating shaft; 604, disc; 605, cam; 606, rocker arm; 607, bracket; 608, vertical rod; 609, mounting plate; 610, guide rod; 611, kneading plate; 612, spring. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figures 1-8 The present invention provides a technical solution: a granulation extrusion device for a polypropylene nucleating agent, comprising an extrusion granulation mechanism 1, which is fixedly mounted on a support frame 3, and the support frame 3 and a box body 4 are fixed to each other. A partition plate 5 is fixed in the box body 4, and a notch 501 is provided on the partition plate 5. A second motor 502 is fixed to the lower end surface of the partition plate 5, and a feeding plate 503 that slides in contact with the partition plate 5 is fixed on the output shaft of the second motor 502, and an opening for limiting the particles is provided on the feeding plate 503, and a cylinder 504 connected to the box body 4 by a bearing is fixed on the feeding plate 503, and a kneading mechanism 6 that can swing back and forth is installed on the output shaft of the second motor 502, and the kneading mechanism 6 includes a kneading plate 611 with an upwardly curved arc structure on both sides that slide in contact with the feeding plate 503, and the kneading plate 611 is used to knead the particles in the opening on the feeding plate 503.

[0030] The extrusion granulation mechanism 1 includes a feed box 101 fixed on the support frame 3, and a storage box 102 is fixed on the feed box 101, and a pressing mechanism 2 is installed on the storage box 102. A first motor 103 is fixed to the side of the feed box 101, and the output end of the first motor 103 is fixed to a screw conveying rod 104 connected to the bearing in the feed box 101; a granulation plate 105 is installed on the right side of the feed box 101, and granulation holes are evenly opened on the granulation plate 105, and a mounting sleeve 106 mounted on the screw conveying rod 104 is provided on the side of the granulation plate 105. The mounting sleeve 106 is provided with a cutter 107 which is slidably connected to the granulation plate 105; the pressing mechanism 2 includes a fixed plate 201 fixed in the storage box 102, and a slide rod 202 is slidably connected to the fixed plate 201, and pressing plates 203 are fixed on the slide rod 202 at equal intervals, and the pressing plates 203 are tapered structures; the slide rod 202 and one end of the connecting rod 204 are fixed to each other, and the other end of the connecting rod 204 is fixed to the gear ring 205, and the gear ring 205 is meshed with the half gear 206, and the half gear 206 is fixed to the output shaft of the first motor 103;

[0031] When using the granulation extrusion device of the polypropylene nucleating agent, Figure 1-Figure 5As shown, first, the raw materials are placed in the storage box 102. When granulation is carried out, the first motor 103 is started, and the first motor 103 drives the spiral conveying rod 104 to rotate, so that the raw materials that pass through the storage box 102 and enter the feeding box 101 can be conveyed from left to right. When the raw materials move to the rightmost side and contact the granulation plate 105, the spiral conveying rod 104 can convey the raw materials to achieve the extrusion of the raw materials, so that the raw materials can be squeezed out through the granulation holes on the granulation plate 105. When the spiral conveying rod 104 rotates, the mounting sleeve 106 and the cutter 107 can be synchronously driven to rotate. By the rotation of the cutter 107, the material at the base of the granulation holes on the granulation plate 105 can be cut, thereby achieving the granulation effect. In the granulation process, the start of the first motor 103 will synchronously drive the half gear 206 to rotate, and cooperate with the half gear 20 The meshing transmission effect between 6 and the gear ring 205 can make the gear ring 205, the connecting rod 204 and the slide bar 202 move up and down in an orderly manner, and the sliding guiding effect between the slide bar 202 and the fixed plate 201 can ensure the stability of the movement of the gear ring 205, the connecting rod 204 and the slide bar 202. When the slide bar 202 moves upward, it simultaneously drives the pressure plate 203 to move up, and cooperates with the inclined surface structure on the upper side of the pressure plate 203 to reduce the resistance of the material to the upward movement of the pressure plate 203. When the slide bar 202 drives the pressure plate 203 downward, the pressure plate 203 can provide a downward pressure on the material under the pressure plate 203, which can not only press the material in the storage box 102 into the feeding box 101, avoiding material blockage and affecting normal feeding, but also can synchronize the downward pressure to increase the density of the material in the feeding box 101, thereby better meeting the granulation requirements of the material.

[0032] A material receiving port 401 located below the granulation plate 105 is provided on the upper side of the box body 4, and a material discharge port 402 is provided on the left side of the box body 4, and a slag discharge port 403 is provided on the lower side of the box body 4. At the same time, a left low and high sieve plate 404 is fixed obliquely in the box body 4; a baffle 405 is fixed in the box body 4, and the baffle 405 slides in contact with the upper end surface of the feed plate 503, and a dividing plate 406 is also fixed in the box body 4, and the distance between the dividing plate 406 and the feed plate 503 is 1-5mm; the kneading mechanism 6 includes a driving wheel 601 fixed on the output shaft of the second motor 502, and the driving wheel 601 is connected to the driven wheel 602 by a belt, and the diameter of the driving wheel 601 is larger than the diameter of the driven wheel 602, and the driven wheel 602 is fixed on the rotating shaft 603 , the rotating shaft 603 is connected to the upper end surface of the box body 4 with a bearing; a disc 604 is fixed to the upper end of the rotating shaft 603, and a convex shaft 605 is fixed to the disc 604, and the convex shaft 605 and the rocker arm 606 are slidably connected, and the rocker arm 606 is connected to the bracket 607 with a bearing, and the bracket 607 is fixed to the upper end surface of the box body 4; the bracket 607 and one end of the vertical rod 608 are fixed to each other, and the vertical rod 608 and the box body 4 are slidably connected, and the other end of the vertical rod 608 is fixed to the mounting plate 609, and the mounting plate 609 is slidably connected with a guide rod 610, and the guide rod 610 is symmetrically fixed to the rubbing plate 611 front and back, the rubbing plate 611 and one end of the spring 612 are fixed to each other, and the other end of the spring 612 is fixed to the mounting plate 609;

[0033] During the operation of the device, the second motor 502 is started synchronously, such as Figures 1-8As shown, after the material is pelletized, it automatically enters the box body 4 through the receiving port 401 under the action of gravity. At this time, part of the material falls onto the feeding plate 503. With the blocking effect of the baffle 405 and the dividing plate 406, the material can be accumulated between the baffle 405 and the dividing plate 406. When the second motor 502 is started, the feeding plate 503 can be driven to rotate by the second motor 502. At this time, the material falling into the opening on the feeding plate 503 moves with the feeding plate 503. Since the opening on the feeding plate 503 is a strip structure, a certain number of material particles can be stored in each opening. The height of the material particles is higher than the depth of the opening on the feeding plate 503. When the material in the opening on the feeding plate 503 moves, the distance between the dividing plate 406 and the granulating plate 105 is 1-5 mm, which can prevent the accumulated material particles from moving with the feeding plate 503, thereby ensuring that the material particles are evenly dispersed in the opening on the feeding plate 503 to move. When the second motor 502 is started, it can synchronously drive the driving wheel 601 to rotate, and cooperate with the transmission effect between the driving wheel 601 and the driven wheel 602 to make the rotating shaft 603, the disc 604 and the cam shaft 605 rotate. , with the sliding action between the convex shaft 605 and the rocker arm 606, the rocker arm 606 can be made to swing back and forth in an orderly manner, thereby driving the vertical rod 608, the mounting plate 609 and the kneading plate 611 to swing back and forth. When the feeding plate 503 drives the material particles to move until the material particles come into contact with the kneading plate 611, the kneading action of the kneading plate 611 can be realized. By kneading the material particles, friction is generated between the material particles, and with the elastic action of the spring 612, it can effectively prevent the kneading force of the kneading plate 611 from being too large to cause the material to break, thereby The residual debris adhered to the cut surface of the material particles can be effectively removed. The material particles after kneading continue to rotate under the action of the feed plate 503. When the material particles match the position of the notch 501, under the action of gravity, the material particles and debris automatically fall down to contact with the screen plate 404. Through the tilting effect of the screen plate 404, the material particles can be rolled to the discharge port 402 to realize discharge, and through the action of the screen plate 404, the material particles and debris can be separated. The debris falls and is discharged through the slag discharge port 403 for collection. This is the working principle of the granulation extrusion device of the polypropylene nucleating agent.

[0034] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements that are inherent to such process, method, article or apparatus.

[0035] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method of the present invention and its core ideas. The above is only a preferred implementation method of the present invention. It should be pointed out that due to the limitations of textual expression, there are objectively infinite specific structures. For ordinary technicians in this technical field, without departing from the principles of the present invention, they can make several improvements, modifications or changes, and can also combine the above technical features in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the inventive concept and technical solution to other occasions without improvement, should be regarded as the scope of protection of the present invention.

Claims

1. A granulation extrusion device for a polypropylene nucleating agent, comprising an extrusion granulation mechanism (1), wherein the extrusion granulation mechanism (1) is fixedly mounted on a support frame (3), wherein the support frame (3) and a box (4) are fixed to each other, and wherein: A partition plate (5) is fixed in the box body (4), a notch (501) is provided on the partition plate (5), a second motor (502) is fixed on the lower end surface of the partition plate (5), a feed plate (503) that contacts and slides with the partition plate (5) is fixed on the output shaft of the second motor (502), and an opening for limiting the position of particles is provided on the feed plate (503), a cylinder (504) connected to the box body (4) by a bearing is fixed on the feed plate (503), and a kneading mechanism (6) that can swing back and forth is installed on the output shaft of the second motor (502), the kneading mechanism (6) includes a kneading plate (611) with an upwardly curved arc structure on both sides that contacts and slides with the feed plate (503), and the kneading plate (611) is used to knead the particles in the opening on the feed plate (503); The kneading mechanism (6) includes a driving wheel (601) fixed on the output shaft of the second motor (502), and the driving wheel (601) is connected to the driven wheel (602) through a belt, and the diameter of the driving wheel (601) is larger than the diameter of the driven wheel (602), and the driven wheel (602) is fixed on the rotating shaft (603), and the rotating shaft (603) is connected to the upper end surface of the box (4) by a bearing; a disc (604) is fixed on the upper end of the rotating shaft (603), and a convex shaft (605) is fixed on the disc (604), and the convex shaft (605) is connected to the swing rod (606) in a sliding manner, and the swing rod (606) is connected to the rotating shaft (603). 06) The bearing is connected to the bracket (607), and the bracket (607) is fixed to the upper end surface of the box (4); the bracket (607) and one end of the vertical rod (608) are fixed to each other, and the vertical rod (608) and the box (4) are slidably connected, and the other end of the vertical rod (608) is fixed to the mounting plate (609), and the mounting plate (609) is slidably connected with a guide rod (610), and the guide rod (610) is symmetrically fixed to the rubbing plate (611) in the front and rear directions, and the rubbing plate (611) and one end of the spring (612) are fixed to each other, and the other end of the spring (612) is fixed to the mounting plate (609); The extrusion granulation mechanism (1) comprises a feeding box (101) fixed on a support frame (3), a storage box (102) fixed on the feeding box (101), and a pressing mechanism (2) installed on the storage box (102), a first motor (103) fixed on the side of the feeding box (101), and an output end of the first motor (103) and a spiral conveying rod (104) connected to a bearing in the feeding box (101) are fixed to each other; The pressing mechanism (2) includes a fixed plate (201) fixed in the material storage box (102), and a sliding rod (202) is slidably connected to the fixed plate (201), and a pressing plate (203) is fixed on the sliding rod (202) at equal intervals, and the pressing plate (203) is a conical structure; the sliding rod (202) and one end of the connecting rod (204) are fixed to each other, and the other end of the connecting rod (204) is fixed to the gear ring (205), and the gear ring (205) is meshed with the half gear (206), and the half gear (206) is fixed to the output shaft of the first motor (103); A baffle (405) is fixed in the box body (4), and the baffle (405) contacts and slides with the upper end surface of the feeding plate (503). A dividing plate (406) is also fixed in the box body (4), and the distance between the dividing plate (406) and the feeding plate (503) is 1-5 mm.

2. The granulation extrusion device for a polypropylene nucleating agent according to claim 1, characterized in that: A granulation plate (105) is installed on the right side of the feeding box (101), and granulation holes are evenly opened on the granulation plate (105). A mounting sleeve (106) mounted on the spiral conveying rod (104) is provided on the side of the granulation plate (105), and a cutter (107) is installed on the mounting sleeve (106) and is in sliding connection with the granulation plate (105).

3. The granulation extrusion device for a polypropylene nucleating agent according to claim 2, characterized in that: The upper side of the box body (4) is provided with a material receiving port (401) located below the granulation plate (105), the left side of the box body (4) is provided with a material discharge port (402), and the lower side of the box body (4) is provided with a slag discharge port (403), and a sieve plate (404) with a left lower and a high one is fixed obliquely in the box body (4).

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