Novel PA66 halogen-free flame-retardant plastic production device

Abstract

The utility model relates to the technical field of high polymer materials, and discloses a novel PA66 halogen-free flame-retardant plastic production device which comprises a barrel body, the top end of the barrel body is fixedly connected with a servo motor, and the inner wall of the barrel body is provided with a stirring and cleaning mechanism; the stirring and cleaning mechanism comprises a rotating shaft, a uniform stirring assembly is arranged on the outer wall of the rotating shaft, a transverse plate is fixedly connected to the bottom end of the outer arc surface of the rotating shaft, a movable plate is elastically connected to the inner wall of the transverse plate through a connecting spring, and a wedge block is fixedly connected to the top end of the movable plate; a first gear is fixedly connected to the top end of the outer arc face of the rotating shaft, and a rotating column is rotationally connected to the top end of the can body. According to the cleaning device, when the rotating shaft rotates, the driving gear is driven to rotate, then the threaded rod drives the scraping plate to ascend, sediment on the inner wall of the barrel body is scraped, manual cleaning is avoided, and therefore the effect of saving time and labor is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of polymer materials, in particular to a novel PA66 halogen-free flame-retardant plastic production device. Background Art

[0002] PA66 halogen-free flame-retardant plastic is a high-performance plastic material. It uses flame retardants that do not contain halogen elements (such as chlorine and bromine), such as phosphorus and nitrogen. Its flame retardancy principle is to reduce combustion performance by releasing flame-retardant gases or forming a protective film during combustion.

[0003] A search revealed Chinese patent publication number CN214644948U, which discloses a device for preparing PA66 halogen-free flame-retardant material. The device comprises a tank body with a fixed horizontal partition fixedly disposed therein, which divides the tank body from top to bottom into a storage chamber and a mixing chamber. A fixed vertical partition is disposed within the storage chamber, which divides the storage chamber from left to right into a PA66 resin storage chamber and a filler storage chamber. The mixing chamber is provided with a weighing mechanism, a feeding pipe, and a first stirring mechanism, arranged in order from top to bottom. The weighing mechanism comprises a first electronic loss-in-weight scale and a second electronic loss-in-weight scale. A first and second feeding openings are disposed on either side of the horizontal partition, respectively, and are connected to the first and second electronic loss-in-weight scales, respectively, via pipelines. This device can reduce worker workload, improve work efficiency, and prevent excessive powder from flying out when adding fillers, which could harm workers and pollute the surrounding environment.

[0004] Although the above technology has been improved to a certain extent, the PA66 resin itself has a certain degree of adhesion and will adhere to the inner wall of the barrel during stirring. When the PA66 resin adheres to the inner wall of the barrel, it will affect the production efficiency. When there is too much sediment on the inner wall of the barrel, manual cleaning is required. Manual cleaning requires the use of corresponding tools for scraping, which is more troublesome and increases manpower and time, thereby increasing the cost of equipment maintenance. Therefore, a new PA66 halogen-free flame retardant plastic production device is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above deficiencies, the utility model provides a novel PA66 halogen-free flame-retardant plastic production device, which aims to improve the problem of increased equipment cost caused by manual cleaning of PA66 resin in the prior art.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a novel PA halogen-free flame-retardant plastic production device, comprising a barrel, the top of which is fixedly connected to a servo motor, and the inner wall of which is provided with a stirring and cleaning mechanism;

[0007] The stirring and cleaning mechanism includes a rotating shaft, the outer wall of the rotating shaft is provided with a stirring assembly, the bottom end of the outer arc surface of the rotating shaft is fixedly connected to a horizontal plate, the inner wall of the horizontal plate is elastically connected to a movable plate by a connecting spring, the top of the movable plate is fixedly connected to a wedge block, the top end of the outer arc surface of the rotating shaft is fixedly connected to gear 1, the top end of the barrel body is rotatably connected to a rotating column, the outer wall of the rotating column is slidably connected to a driving gear, the top of the driving gear is provided with a limiting assembly, the inner wall of the barrel body is rotatably connected to a threaded rod, the top end of the threaded rod is fixedly connected to gear 2, the outer wall of the threaded rod is threadedly connected to a scraper, the bottom end of the barrel body is fixedly connected to a discharging bucket, and the inner wall of the bottom end of the discharging bucket is provided with a disassembly mechanism.

[0008] As a further description of the above technical solution:

[0009] The limiting assembly includes a fixed block, the bottom end of the fixed block is fixedly connected to the top of the driving gear, the inner wall of the fixed block is threadedly connected with a bolt, the front end of the rotating column is provided with a threaded hole, and the rear end of the bolt is threadedly connected to the inner wall of the threaded hole.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the rotating shaft is rotatably connected to the inner wall of the barrel body, the output end of the servo motor is fixedly connected to the top of the barrel body, the bottom ends of the horizontal plate and the movable plate are fixedly connected to a cleaning plate, and the bottom end of the cleaning plate contacts the inner wall of the top end of the barrel body.

[0012] As a further description of the above technical solution:

[0013] One end of the connecting spring is fixedly connected to the outer wall of the movable plate, and the other end of the connecting spring is fixedly connected to the inner wall of the horizontal plate. The outer wall of the movable plate is slidably connected to the inner wall of the horizontal plate.

[0014] As a further description of the above technical solution:

[0015] The stirring component includes a threaded piece, the inner side wall of the threaded piece is fixedly connected to the outer wall of the rotating shaft, and the outer wall of the threaded piece is fixedly connected to the stirring rod.

[0016] As a further description of the above technical solution:

[0017] The left end of the driving gear is engaged with the right end of gear one, and the right end of the driving gear is engaged with the left end of gear two. The outer wall of the scraper is slidably connected to the inner wall of the barrel, and the inner side wall of the scraper contacts the outer wall of the wedge.

[0018] As a further description of the above technical solution:

[0019] The disassembly mechanism includes a filter plate, the outer wall of the filter plate is slidably connected to the inner wall of the discharge barrel, the outer wall of the filter plate is fixedly connected to a support block, and the inner wall of the support block is elastically connected to a plug-in block via a reset spring.

[0020] As a further description of the above technical solution:

[0021] One end of the return spring is fixedly connected to the inner wall of the support block, and the other end of the return spring is fixedly connected to the outer wall of the plug-in block. The outer wall of the plug-in block is slidably connected to the inner wall of the support block, and the outer wall of the plug-in block is plugged into the inner wall of the discharge barrel.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, through the mutual cooperation between the barrel body, servo motor and its stirring and cleaning mechanism, the rotating shaft will drive the driving gear to rotate when it rotates, and then the threaded rod will drive the scraper to rise, thereby scraping off the sediment on the inner wall of the barrel body, avoiding manual cleaning and achieving the effect of saving time and labor.

[0024] 2. In the present invention, by cooperating with each other among the disassembly mechanism and other structures, when the filter plate needs to be disassembled, the limit can be released by moving two sets of plug-in blocks toward the middle, and then the filter plate can be moved downward to be taken out, which is simple and convenient to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is an overall three-dimensional schematic diagram of a new PA66 halogen-free flame-retardant plastic production device proposed in the utility model;

[0026] Figure 2 This is a schematic diagram of the overall bottom of the barrel of a new PA66 halogen-free flame-retardant plastic production device proposed in the utility model;

[0027] Figure 3 This is a schematic diagram of the internal cross-section of a barrel of a new PA66 halogen-free flame-retardant plastic production device proposed in the utility model;

[0028] Figure 4 This is a schematic diagram of the overall three-dimensional view of the threaded piece of a new PA66 halogen-free flame-retardant plastic production device proposed in the utility model;

[0029] Figure 5 This is an enlarged structural diagram of point A of a new PA66 halogen-free flame-retardant plastic production device proposed in the present invention;

[0030] Figure 6 This is a schematic diagram of the enlarged structure of point B of a new PA66 halogen-free flame-retardant plastic production device proposed in the present invention;

[0031] Figure 7 This is a schematic overall perspective view of a threaded rod of a novel PA66 halogen-free flame-retardant plastic production device proposed in the present invention;

[0032] Figure 8 This is a schematic internal cross-sectional diagram of a discharge barrel and a support block of a novel PA66 halogen-free flame-retardant plastic production device proposed in the present invention.

[0033] Legend:

[0034] 1. Barrel body; 2. Servo motor; 3. Mixing and cleaning mechanism; 301. Rotating column; 302. Driving gear; 303. Fixed block; 304. Gear 2; 305. Threaded piece; 306. Scraper; 307. Mixing rod; 308. Horizontal plate; 309. Gear 1; 310. Threaded rod; 311. Rotating shaft; 312. Bolt; 313. Movable plate; 314. Wedge; 315. Cleaning plate; 316. Connecting spring; 4. Discharging barrel; 5. Disassembly mechanism; 501. Filter plate; 502. Support block; 503. Return spring; 504. Connecting block. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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.

[0036] Reference Figure 1 、 Figure 3 and Figure 6The utility model provides an embodiment: a novel PA66 halogen-free flame-retardant plastic production device, including a barrel body 1, a servo motor 2 is fixedly connected to the top of the barrel body 1, the barrel body 1 is used to stir the PA66 resin, and the servo motor 2 can rotate forward or reverse. This is the prior art and will not be explained in detail here. The inner wall of the barrel body 1 is provided with a stirring and cleaning mechanism 3; this mechanism can avoid manual cleaning and thus achieve the purpose of saving time and effort. The stirring and cleaning mechanism 3 includes a rotating shaft 311, and the outer wall of the rotating shaft 311 is provided with a stirring component The rotating shaft 311 can drive the mixing component to rotate. The bottom end of the outer arc surface of the rotating shaft 311 is fixedly connected to the horizontal plate 308. The inner wall of the horizontal plate 308 is elastically connected to the movable plate 313 through the connecting spring 316. The overall length of the movable plate 313 and the horizontal plate 308 can be adjusted to adapt to the four corners of the barrel body 1 and clean it. The top of the movable plate 313 is fixedly connected to the wedge block 314. The wedge block 314 is provided to facilitate the resetting of the movable plate 313. The top end of the outer arc surface of the rotating shaft 311 is fixedly connected to the gear 1 309, and the movement trajectories of the two are the same.

[0037] Reference Figure 2-Figure 4 The top of the barrel body 1 is rotatably connected to a rotating column 301, and the outer wall of the rotating column 301 is slidably connected to a driving gear 302. The driving gear 302 can move to achieve rotation or non-rotation. A limiting component is provided on the top of the driving gear 302, and the limiting component can limit the position of the driving gear 302 after movement. The inner wall of the barrel body 1 is rotatably connected to a threaded rod 310, and the top of the threaded rod 310 is fixedly connected to a gear 2 304. The outer wall of the threaded rod 310 is threadedly connected to a scraper 306, which is driven by the rotation of the gear 2 304 to rotate the threaded rod 310, so that the scraper 306 rises and scrapes. The bottom end of the barrel body 1 is fixedly connected to a discharge barrel 4, which is used to discharge the stirred PA66 resin. The inner wall of the bottom end of the discharge barrel 4 is provided with a disassembly mechanism 5, which can achieve the purpose of quick disassembly.

[0038] Reference Figure 3-Figure 5The limit assembly includes a fixed block 303, the bottom end of the fixed block 303 is fixedly connected to the top of the driving gear 302, and the inner wall of the fixed block 303 is threadedly connected with a bolt 312, and the limit can be released or limited by rotating the bolt 312, and the motion trajectory of the driving gear 302 is the same as that of the fixed block 303. A threaded hole is provided at the front end of the rotating column 301, and the rear end of the bolt 312 is threadedly connected to the inner wall of the threaded hole. The threaded holes are provided with two groups, one group for limiting the engaged state and the other group for limiting the non-engaged state. The outer wall of the rotating shaft 311 is rotatably connected to the inner wall of the barrel body 1, and the output end of the servo motor 2 is fixedly connected to the top of the barrel body 1, and the rotation of the output end drives the rotating shaft 311 to rotate. The bottom ends of the horizontal plate 308 and the movable plate 313 are fixedly connected to the cleaning plate 315, and the bottom end of the cleaning plate 315 contacts the inner wall of the top end of the barrel body 1. The contact between the two can clean the inner wall of the bottom end of the barrel body 1.

[0039] Reference Figure 4 、 Figure 6 and Figure 7 The cam 314 is provided with a screw thread 305, and the screw thread 305 is provided with a screw thread 305. The screw thread 305 is provided with a screw thread 305, and the screw thread 305 is provided with a screw thread 305. The screw thread 305 is provided with a screw thread 305, and the screw thread 305 is provided with a screw thread 305. A stirring rod 307 is fixedly connected, and the threaded piece 305 is matched with the stirring rod 307 so that the stirring rod 307 can move up and down to a certain extent, thereby achieving a stirring effect. The left end of the driving gear 302 is engaged with the right end of gear 1 309, and the right end of the driving gear 302 is engaged with the left end of gear 2 304. When engaged, the scraper 306 moves up or down, and the outer wall of the scraper 306 is slidably connected to the inner wall of the barrel body 1. The inner side wall of the scraper 306 contacts the outer wall of the wedge block 314. Through the contact between the two, the inner wall of the barrel body 1 can be scraped.

[0040] Reference Figure 2 and Figure 7The disassembly mechanism 5 includes a filter plate 501, the outer wall of the filter plate 501 is slidably connected to the inner wall of the discharge barrel 4, the outer wall of the filter plate 501 is fixedly connected to the support block 502, and the filter plate 501 can perform a certain filtering effect, and the inner wall of the support block 502 is elastically connected to the plug-in block 504 through a return spring 503. The support block 502 and the plug-in block 504 are each provided with two groups, which achieve the limit function by plugging. One end of the return spring 503 is fixedly connected to the inner wall of the support block 502, and the other end of the return spring 503 is fixedly connected to the outer wall of the plug-in block 504. The outer wall of the plug-in block 504 is slidably connected to the inner wall of the support block 502, and the outer wall of the plug-in block 504 is plugged into the inner wall of the discharge barrel 4. The elasticity of the return spring 503 makes the plug-in block 504 have the reset and limit functions to achieve the purpose of quick installation and disassembly.

[0041] Working principle: when it is necessary to scrape the inner wall of the barrel body 1, the servo motor 2 is started and the servo motor 2 drives the gear 1 309 to rotate, and the gear 1 309 drives the gear 2 304 to rotate, so that the threaded rod 310 rotates, and then the scraper 306 can be driven to move upward, so as to scrape the PA66 resin deposits on the inner wall of the barrel body 1. At the same time, the cross plate 308 will also rotate, prompting the movable plate 313 and the multiple sets of cleaning plates 315 to rotate, thereby scraping the PA66 resin deposits on the inner wall of the barrel body 1. When the cross plate 308 is at the corner of the barrel body 1, the elasticity of the connecting spring 316 makes the movable plate 313 reset and the bottom inner wall of the barrel body 1 can be scraped. The operation is simple and convenient. At the same time, when the scraper 306 needs to be reset, the servo motor 2 can be rotated in the opposite direction. At this time, the scraper 306 moves downward, squeezing the wedge block 314 to retract the movable plate 313.

[0042] When it is necessary to stir the PA66 resin, the bolt 312 is turned to release the limit, and then the driving gear 302 can be moved upward so that the driving gear 302 is not engaged with the gear 2 304 and the gear 1 309. The operation is simple and convenient, and damage to the scraper 306 caused by repeated rotation is avoided. When the filter plate 501 needs to be removed, the two sets of plug-in blocks 504 are first moved to the middle to release the connection between the plug-in blocks 504 and the discharge barrel 4. Then the filter plate 501 can be removed downward to complete the disassembly operation. The disassembly operation is simple and convenient.

[0043] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A novel PA66 halogen-free flame-retardant plastic production device, comprising a barrel (1), characterized in that: A servo motor (2) is fixedly connected to the top of the barrel body (1), and a stirring and cleaning mechanism (3) is provided on the inner wall of the barrel body (1); The stirring and cleaning mechanism (3) comprises a rotating shaft (311), the outer wall of the rotating shaft (311) is provided with a stirring assembly, the bottom end of the outer arc surface of the rotating shaft (311) is fixedly connected to a horizontal plate (308), the inner wall of the horizontal plate (308) is elastically connected to a movable plate (313) via a connecting spring (316), the top end of the movable plate (313) is fixedly connected to a wedge block (314), the top end of the outer arc surface of the rotating shaft (311) is fixedly connected to a gear 1 (309), and the top end of the barrel body (1) is rotatably connected to a rotating shaft (309). A movable column (301), the outer wall of the rotating column (301) is slidably connected to a driving gear (302), a limit assembly is provided at the top of the driving gear (302), the inner wall of the barrel body (1) is rotatably connected to a threaded rod (310), the top of the threaded rod (310) is fixedly connected to a second gear (304), the outer wall of the threaded rod (310) is threadedly connected to a scraper (306), the bottom end of the barrel body (1) is fixedly connected to a discharge barrel (4), and a disassembly mechanism (5) is provided on the inner wall of the bottom end of the discharge barrel (4).

2. A novel PA66 halogen-free flame-retardant plastic production device according to claim 1, characterized in that: The limiting assembly comprises a fixed block (303), the bottom end of the fixed block (303) is fixedly connected to the top end of the driving gear (302), the inner wall of the fixed block (303) is threadedly connected to a bolt (312), the front end of the rotating column (301) is provided with a threaded hole, and the rear end of the bolt (312) is threadedly connected to the inner wall of the threaded hole.

3. A novel PA66 halogen-free flame-retardant plastic production device according to claim 1, characterized in that: The outer wall of the rotating shaft (311) is rotatably connected to the inner wall of the barrel body (1), the output end of the servo motor (2) is fixedly connected to the top end of the barrel body (1), and the bottom ends of the transverse plate (308) and the movable plate (313) are fixedly connected to a cleaning plate (315), and the bottom end of the cleaning plate (315) contacts the inner wall of the top end of the barrel body (1).

4. The novel PA66 halogen-free flame-retardant plastic production device according to claim 1 is characterized in that: One end of the connecting spring (316) is fixedly connected to the outer wall of the movable plate (313), and the other end of the connecting spring (316) is fixedly connected to the inner wall of the horizontal plate (308). The outer wall of the movable plate (313) is slidably connected to the inner wall of the horizontal plate (308).

5. The novel PA66 halogen-free flame-retardant plastic production device according to claim 1 is characterized in that: The stirring assembly comprises a threaded piece (305), the inner side wall of the threaded piece (305) is fixedly connected to the outer wall of the rotating shaft (311), and the outer wall of the threaded piece (305) is fixedly connected to a stirring rod (307).

6. A novel PA66 halogen-free flame-retardant plastic production device according to claim 1, characterized in that: The left end of the driving gear (302) is meshed with the right end of gear one (309), and the right end of the driving gear (302) is meshed with the left end of gear two (304). The outer wall of the scraper (306) is slidably connected to the inner wall of the barrel (1), and the inner side wall of the scraper (306) contacts the outer wall of the wedge block (314).

7. The novel PA66 halogen-free flame-retardant plastic production device according to claim 1 is characterized in that: The disassembly mechanism (5) comprises a filter plate (501), the outer wall of the filter plate (501) being slidably connected to the inner wall of the discharge barrel (4), the outer wall of the filter plate (501) being fixedly connected to a support block (502), and the inner wall of the support block (502) being elastically connected to a plug-in block (504) via a return spring (503).

8. A novel PA66 halogen-free flame-retardant plastic production device according to claim 7, characterized in that: One end of the return spring (503) is fixedly connected to the inner wall of the support block (502), and the other end of the return spring (503) is fixedly connected to the outer wall of the plug-in block (504). The outer wall of the plug-in block (504) is slidably connected to the inner wall of the support block (502), and the outer wall of the plug-in block (504) is plugged into the inner wall of the discharge barrel (4).

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