A polymer particle breaking device

Abstract

The utility model discloses a kind of polymer granule crushing devices, it is related to polymer processing technical field. Including crushing box and mounting plate, mounting plate is fixed in crushing box, and the crushing assembly of containing coarse crushing part, screening part and fine crushing part is connected to crushing box. The driving motor of crushing assembly is driven three driving cross bars to rotate by transmission wheel and transmission belt, and energy is supplied to each part. Coarse crushing part utilizes rotating coarse crushing disc and crushing hammer to preliminarily crush polymer;Qualified particles are sent into fine crushing part by vibrating screen classification in screening part;Fine crushing part is further pulverized by rotating fine crushing knife. The device realizes layered crushing, and improves particle uniformity and crushing effect.

Description

Technical Field

[0001] This utility model relates to the field of polymer processing technology, specifically a polymer particle crushing device. Background Technology

[0002] Polymer materials are widely used in industrial production, and their processing often requires crushing to meet diverse production needs. Traditional crushing devices have relatively simple structures, most of which can only perform one crushing operation. This results in poor crushing efficiency, uneven particle size, and an inability to meet increasingly stringent production standards, significantly reducing production efficiency and product quality, and causing numerous inconveniences for subsequent processing steps. Therefore, those skilled in the art have proposed a polymer particle crushing device to address the problems mentioned above. Utility Model Content

[0003] The purpose of this invention is to provide a polymer particle crushing device to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A polymer particle crushing device includes a crushing box and a mounting plate. The mounting plate is fixedly connected inside the crushing box. The crushing box is connected to a crushing assembly, which includes a coarse crushing section, a screening section, and a fine crushing section. The coarse crushing section is used to perform preliminary crushing of the polymer. The screening section is used to screen the preliminarily crushed polymer to the fine crushing section. The fine crushing section is used to further crush the preliminarily crushed polymer.

[0006] As a further embodiment of this utility model: the crushing assembly includes a drive motor, a first drive crossbar, a second drive crossbar, a third drive crossbar, a transmission wheel, and a transmission belt. The first drive crossbar, the second drive crossbar, and the third drive crossbar are rotatably connected from top to bottom on the side wall of the crushing box. A transmission wheel is fixedly connected to each of the first drive crossbar, the second drive crossbar, and the third drive crossbar. The transmission wheels are connected to each other by a transmission belt. One end of the first drive crossbar is fixedly connected to the output shaft of the drive motor.

[0007] As a further embodiment of this utility model: the coarse crushing section includes a connecting disc, a coarse crushing disc, a connecting crossbar, and a crushing hammer. The inner walls of both sides of the crushing box are rotatably connected to the connecting disc. The other end of the first driving crossbar passes through the crushing box and is fixedly connected to one of the connecting discs. Several sets of connecting crossbars arranged in a circumferential array are fixedly connected to the inner side of the connecting disc. Several sets of evenly distributed coarse crushing discs are fixedly connected to the connecting crossbar. A crushing hammer is fixedly connected to the connecting crossbar between adjacent coarse crushing discs.

[0008] As a further embodiment of this utility model: the screening section includes a screening chute, a screening slider, a baffle plate, a screening frame, and a screening mesh. Screening chute is provided on both the left and right side walls of the crushing box. Screening sliders are slidably connected in the screening chute. Baffle plates are fixedly connected to the inner side of the screening sliders. The baffle plates abut against the inner wall of the crushing box. Screening frames are fixedly connected between the baffle plates. Screening mesh is fixedly connected in the screening frames.

[0009] As a further embodiment of this utility model: the screening section also includes a first screening bevel gear, a second screening bevel gear, a support plate, a screening crossbar, a screening rocker, a screening plate, and a transmission groove. The first screening bevel gear is fixedly connected to the second drive crossbar. The support plate is fixedly connected to the side of the crushing box. The screening crossbar is rotatably connected to the support plate. Both ends of the screening crossbar pass through the support plate. One end is fixedly connected to the second screening bevel gear, and the other end is fixedly connected to the screening rocker. The first screening bevel gear and the second screening bevel gear mesh with each other. A screening plate arranged in a horizontal direction is fixedly connected to the outside of the screening slider located on one side of the screening rocker. A transmission groove is opened on the screening plate. The end of the screening rocker is slidably connected to the transmission groove.

[0010] As a further embodiment of this utility model: the fine crushing section includes fine crushing vertical rods, fine crushing blades, telescopic rods, a first fine crushing bevel gear, and a second fine crushing bevel gear. Several sets of evenly distributed fine crushing vertical rods are rotatably connected to the bottom surface of the screening frame. Several sets of fine crushing blades are fixedly connected to the fine crushing vertical rods. One end of the third drive crossbar passes through the side wall of the crushing box and is rotatably connected to the inner wall of the other side of the crushing box. Several sets of evenly distributed first fine crushing bevel gears are fixedly connected to the third drive crossbar. The first fine crushing bevel gears mesh with the second fine crushing bevel gears. A telescopic rod is fixedly connected to the second fine crushing bevel gears. The telescopic end of the telescopic rod passes through the mounting plate and is fixedly connected to the lower end of the fine crushing vertical rod.

[0011] Compared with existing technologies, the beneficial effects of this invention are as follows: This device achieves layered crushing of polymers by setting up a coarse crushing section, a screening section, and a fine crushing section. The coarse crushing section first performs preliminary crushing of the polymer, breaking larger polymer blocks into smaller pieces; the screening section screens the polymer after preliminary crushing, screening out particles that meet a certain size and sending them to the fine crushing section; the fine crushing section then finely crushes the screened particles, resulting in polymer particles of uniform size, significantly improving the crushing effect. Compared with traditional devices that can only perform one crushing operation, this invention can better meet the production requirements for polymer particle size and uniformity. The vibrating screening structure of the screening section improves screening efficiency, reduces material clogging on the screen, and enables the device to operate continuously and stably. Attached Figure Description

[0012] Figure 1 This is a front view of a polymer particle crushing device.

[0013] Figure 2 This is a side view of a drive wheel in a polymer particle crushing device.

[0014] Figure 3 This is a schematic diagram of the structure of a screen frame in a polymer particle crushing device.

[0015] In the diagram: 1. Crushing box; 2. Mounting plate; 3. Crushing assembly; 301. Drive motor; 302. First drive crossbar; 303. Second drive crossbar; 304. Third drive crossbar; 305. Transmission wheel; 306. Transmission belt; 307. Connecting disc; 308. Coarse crushing disc; 309. Connecting crossbar; 310. Crusher hammer; 311. Screening chute; 312. Screening slider; 313. Baffle plate; 314. Screening frame; 315. Screening mesh; 316. First screening bevel gear; 317. Second screening bevel gear; 318. Support plate; 319. Screening crossbar; 320. Screening crank handle; 321. Screening plate; 322. Transmission chute; 323. Fine crushing vertical bar; 324. Fine crushing blade; 325. Telescopic rod; 326. First fine crushing bevel gear; 327. Second fine crushing bevel gear. Detailed Implementation

[0016] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments of the present invention can be combined with each other.

[0017] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0020] Please see Figure 1-3 A polymer particle crushing device includes a crushing box 1 and a mounting plate 2. The mounting plate 2 is fixedly connected inside the crushing box 1. The crushing box 1 is connected to a crushing component 3. The crushing component 3 includes a coarse crushing section, a screening section, and a fine crushing section. The coarse crushing section is used to perform preliminary crushing of the polymer. The screening section is used to screen the preliminarily crushed polymer to the fine crushing section. The fine crushing section is used to further crush the preliminarily crushed polymer.

[0021] The crushing assembly 3 includes a drive motor 301, a first drive crossbar 302, a second drive crossbar 303, a third drive crossbar 304, a transmission wheel 305, and a transmission belt 306. The first drive crossbar 302, the second drive crossbar 303, and the third drive crossbar 304 are rotatably connected from top to bottom on the side wall of the crushing box 1. A transmission wheel 305 is fixedly connected to each of the first drive crossbar 302, the second drive crossbar 303, and the third drive crossbar 304. The transmission wheels 305 are connected to each other by the transmission belt 306. One end of the first drive crossbar 302 is fixedly connected to the output shaft of the drive motor 301.

[0022] The coarse crushing section includes a connecting disc 307, coarse crushing discs 308, connecting crossbars 309, and a breaker hammer 310. The inner walls of both sides of the crushing box 1 are rotatably connected to the connecting discs 307. The other end of the first driving crossbar 302 passes through the crushing box 1 and is fixedly connected to one of the connecting discs 307. Several sets of connecting crossbars 309 arranged in a circumferential array are fixedly connected to the inner side of the connecting discs 307. Several sets of evenly distributed coarse crushing discs 308 are fixedly connected to the connecting crossbars 309. A breaker hammer 310 is fixedly connected to the connecting crossbars 309 between adjacent coarse crushing discs 308.

[0023] The polymer enters the crushing chamber 1 through the feed inlet at the top. At this time, the connecting disc 307, fixedly connected to the first drive crossbar 302, begins to rotate. The connecting disc 307 drives the connecting crossbar 309, the coarse crushing disc 308, and the breaker hammer 310 to perform a circular motion. During its descent, the polymer collides and is struck by the high-speed rotating coarse crushing disc 308 and the breaker hammer 310. The coarse crushing disc 308 impacts the polymer through its high-speed rotation, causing initial crushing; the breaker hammer 310, during its circular motion, hammers the polymer with a large impact force, further crushing it into smaller pieces, completing the initial crushing process.

[0024] The screening section includes a screening chute 311, a screening slider 312, a baffle plate 313, a screening frame 314, and a screening mesh 315. Screening chute 311 is provided on both the left and right side walls of the crushing box 1. Screening sliders 312 are slidably connected in the screening chute 311. Baffle plates 313 are fixedly connected to the inner side of the screening sliders 312. The baffle plates 313 abut against the inner wall of the crushing box 1. Screening frames 314 are fixedly connected between the baffle plates 313. Screening mesh 315 is fixedly connected in the screening frame 314.

[0025] The screening section also includes a first screening bevel gear 316, a second screening bevel gear 317, a support plate 318, a screening crossbar 319, a screening rocker 320, a screening plate 321, and a transmission groove 322. The first screening bevel gear 316 is fixedly connected to the second drive crossbar 303. The support plate 318 is fixedly connected to the side of the crushing box 1. The screening crossbar 319 is rotatably connected to the support plate 318. Both ends of the screening crossbar 319 pass through the support plate 318. The second screening bevel gear 317 is fixedly connected to one end, and the screening rocker 320 is fixedly connected to the other end. The first screening bevel gear 316 and the second screening bevel gear 317 mesh with each other. The screening slide block 312 located on one side of the screening rocker 320 is fixedly connected to the outside of the screening slide block 312, which is arranged horizontally. The screening plate 321 is provided with a transmission groove 322. The end of the screening rocker 320 is slidably connected to the transmission groove 322.

[0026] After initial crushing in the coarse crushing section, the polymer lumps fall into the screening frame 314. As the second drive crossbar 303 rotates, the first screening bevel gear 316 fixed to it rotates synchronously. The first screening bevel gear 316 drives the second screening bevel gear 317, which in turn rotates, causing the screening crossbar 319 to rotate. During rotation, the end of the screening handle 320 at one end of the screening crossbar 319 slides within the transmission groove 322 of the screening plate 321, thereby driving the screening plate 321 to perform reciprocating linear motion. The screening plate 321 is fixedly connected to the screening slider 312, so the screening slider 312 performs reciprocating linear motion within the screening groove 311, vibrating and screening the material in the screening frame 314. Polymer particles that fit the mesh size of screen 315 fall through screen 315 and enter the fine crushing section; while particles larger than the mesh size remain in screen frame 314 for further screening until they meet the requirements before entering the fine crushing section. Baffle plate 313 prevents material in the box from spilling out from screen chute 311.

[0027] The fine crushing section includes fine crushing vertical rods 323, fine crushing blades 324, telescopic rods 325, first fine crushing bevel gears 326 and second fine crushing bevel gears 327. Several sets of evenly distributed fine crushing vertical rods 323 are rotatably connected to the bottom surface of the screening frame 314. Several sets of fine crushing blades 324 are fixedly connected to the fine crushing vertical rods 323. One end of the third drive crossbar 304 passes through the side wall of the crushing box 1 and is rotatably connected to the inner wall of the other side of the crushing box 1. Several sets of evenly distributed first fine crushing bevel gears 326 are fixedly connected to the third drive crossbar 304. The first fine crushing bevel gears 326 mesh with the second fine crushing bevel gears 327. The telescopic rod 325 is fixedly connected to the second fine crushing bevel gears 327. The telescopic end of the telescopic rod 325 passes through the mounting plate 2 and is fixedly connected to the lower end of the fine crushing vertical rods 323.

[0028] The polymer particles, initially crushed by the screen 315, fall into the fine crushing section. As the third drive crossbar 304 rotates, the first fine crushing bevel gear 326 on it rotates, driving the meshing second fine crushing bevel gear 327 to rotate. The second fine crushing bevel gear 327 then drives the telescopic rod 325 to rotate, causing the connected fine crushing vertical rod 323 to rotate. The fine crushing blades 324 fixed to the fine crushing vertical rod 323 further crush the falling polymer particles. During this process, the telescopic rod 325 extends and retracts along with the up-and-down movement of the screen frame 314, and the fine crushing blades 324 move up and down to achieve the best crushing effect, ultimately obtaining polymer particles that meet the requirements.

[0029] Working principle

[0030] When the drive motor 301 is turned on, its output shaft drives the first drive crossbar 302 to rotate. Since the transmission wheels 305 on the first drive crossbar 302, the second drive crossbar 303, and the third drive crossbar 304 are connected by a transmission belt 306, the rotation of the first drive crossbar 302 sequentially drives the second drive crossbar 303 and the third drive crossbar 304 to rotate synchronously, providing power for the entire crushing device.

[0031] The polymer enters the crushing chamber 1 through the feed inlet at the top. At this time, the connecting disc 307, fixedly connected to the first drive crossbar 302, begins to rotate. The connecting disc 307 drives the connecting crossbar 309, the coarse crushing disc 308, and the breaker hammer 310 to perform a circular motion. During its descent, the polymer collides and is struck by the high-speed rotating coarse crushing disc 308 and the breaker hammer 310. The coarse crushing disc 308 impacts the polymer through its high-speed rotation, causing initial crushing; the breaker hammer 310, during its circular motion, hammers the polymer with a large impact force, further crushing it into smaller pieces, completing the initial crushing process.

[0032] After initial crushing in the coarse crushing section, the polymer lumps fall into the screening frame 314. As the second drive crossbar 303 rotates, the first screening bevel gear 316 fixed to it rotates synchronously. The first screening bevel gear 316 drives the second screening bevel gear 317, which in turn rotates, causing the screening crossbar 319 to rotate. During rotation, the end of the screening handle 320 at one end of the screening crossbar 319 slides within the transmission groove 322 of the screening plate 321, thereby driving the screening plate 321 to perform reciprocating linear motion. The screening plate 321 is fixedly connected to the screening slider 312, so the screening slider 312 performs reciprocating linear motion within the screening groove 311, vibrating and screening the material in the screening frame 314. Polymer particles that fit the mesh size of screen 315 fall through screen 315 and enter the fine crushing section; while particles larger than the mesh size remain in screen frame 314 for further screening until they meet the requirements before entering the fine crushing section. Baffle plate 313 prevents material in the box from spilling out from screen chute 311.

[0033] The polymer particles, initially crushed by the screen 315, fall into the fine crushing section. As the third drive crossbar 304 rotates, the first fine crushing bevel gear 326 on it rotates, driving the meshing second fine crushing bevel gear 327 to rotate. The second fine crushing bevel gear 327 then drives the telescopic rod 325 to rotate, causing the connected fine crushing vertical rod 323 to rotate. The fine crushing blades 324 fixed to the fine crushing vertical rod 323 further crush the falling polymer particles. During this process, the telescopic rod 325 extends and retracts along with the up-and-down movement of the screen frame 314, and the fine crushing blades 324 move up and down to achieve the best crushing effect, ultimately obtaining polymer particles that meet the requirements.

[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0035] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A polymer particle breaking device, characterized by, The device includes a crushing chamber and a mounting plate, with the mounting plate fixedly connected inside the crushing chamber. The crushing chamber is connected to a crushing assembly, which includes a coarse crushing section, a screening section, and a fine crushing section. The coarse crushing section is used to perform preliminary crushing of the polymer, the screening section is used to screen the preliminarily crushed polymer to the fine crushing section, and the fine crushing section is used to further crush the preliminarily crushed polymer.

2. The polymeric particle breaking apparatus of claim 1, wherein, The crushing assembly includes a drive motor, a first drive crossbar, a second drive crossbar, a third drive crossbar, a transmission wheel, and a transmission belt. The first drive crossbar, the second drive crossbar, and the third drive crossbar are rotatably connected from top to bottom on the side wall of the crushing box. A transmission wheel is fixedly connected to each of the first drive crossbar, the second drive crossbar, and the third drive crossbar. The transmission wheels are connected to each other by a transmission belt. One end of the first drive crossbar is fixedly connected to the output shaft of the drive motor.

3. The polymeric particle breaking apparatus of claim 2, wherein, The coarse crushing section includes a connecting disc, a coarse crushing disc, a connecting crossbar, and a crushing hammer. The inner walls of both sides of the crushing box are rotatably connected to the connecting disc. The other end of the first driving crossbar passes through the crushing box and is fixedly connected to one of the connecting discs. Several sets of connecting crossbars arranged in a circumferential array are fixedly connected to the inner side of the connecting disc. Several sets of evenly distributed coarse crushing discs are fixedly connected to the connecting crossbar. A crushing hammer is fixedly connected to the connecting crossbar between adjacent coarse crushing discs.

4. The polymeric particle breaking apparatus of claim 2, wherein, The screening section includes a screening chute, a screening slider, a baffle plate, a screening frame, and a screening mesh. Screening chute is provided on both the left and right side walls of the crushing box. Screening sliders are slidably connected in the screening chute. Baffle plates are fixedly connected to the inner side of the screening sliders. The baffle plates abut against the inner wall of the crushing box. Screening frames are fixedly connected between the baffle plates. Screening mesh is fixedly connected in the screening frames.

5. The polymeric particle breaking apparatus of claim 4, wherein, The screening section further includes a first screening bevel gear, a second screening bevel gear, a support plate, a screening crossbar, a screening rocker, a screening plate, and a transmission groove. The first screening bevel gear is fixedly connected to the second drive crossbar. A support plate is fixedly connected to the side of the crushing box. A screening crossbar is rotatably connected to the support plate. Both ends of the screening crossbar pass through the support plate. One end is fixedly connected to the second screening bevel gear, and the other end is fixedly connected to the screening rocker. The first screening bevel gear and the second screening bevel gear mesh with each other. A screening plate arranged in a horizontal direction is fixedly connected to the outside of the screening slider located on one side of the screening rocker. A transmission groove is opened on the screening plate. The end of the screening rocker is slidably connected to the transmission groove.

6. The polymeric particle breaking apparatus of claim 5, wherein, The fine crushing section includes fine crushing vertical rods, fine crushing blades, telescopic rods, a first fine crushing bevel gear, and a second fine crushing bevel gear. Several sets of evenly distributed fine crushing vertical rods are rotatably connected to the bottom surface of the screening frame. Several sets of fine crushing blades are fixedly connected to the fine crushing vertical rods. One end of the third drive crossbar passes through the side wall of the crushing box and is rotatably connected to the inner wall of the other side of the crushing box. Several sets of evenly distributed first fine crushing bevel gears are fixedly connected to the third drive crossbar. The first fine crushing bevel gears mesh with the second fine crushing bevel gears. A telescopic rod is fixedly connected to the second fine crushing bevel gears. The telescopic end of the telescopic rod passes through the mounting plate and is fixedly connected to the lower end of the fine crushing vertical rod.

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