Nylon film production raw material crushing and grading device

Abstract

The utility model discloses a kind of nylon film production raw material crushing classification devices, belong to nylon film raw material crushing classification technical field, its technical scheme main points include mounting bracket, the left side fixed connection of mounting bracket has crushing mechanism, the front side of mounting bracket is threadedly connected with auxiliary mechanism;The crushing mechanism includes motor, fixed shaft, mounting rod, crushing roller, gear, several fixed rods, lug and filter plate, the motor is fixedly connected at the left side of mounting bracket, by setting crushing mechanism, motor drives crushing roller rotation, cooperation gear transmission realizes double roller counter-fragmentation, can efficiently dissociate nylon raw material agglomeration, while fixed rod drives lug vibration, make filter plate high-frequency shake, avoid screen clogging, classification efficiency is promoted to several times of traditional fixed screen, the filter plate of different aperture can be quickly replaced and installed, adapt to the demand of different granularity, solve the problem that traditional classification efficiency is low, and adaptability is poor.

Description

Technical Field

[0001] This utility model relates to the field of nylon film raw material crushing and grading technology, and in particular to a nylon film production raw material crushing and grading device. Background Technology

[0002] The raw material crushing and grading device for nylon film production is a core pre-treatment equipment designed specifically for nylon film production. It mainly targets lumps and impurities that may be generated in nylon resin during storage and transportation, as well as production scraps and recycled materials. Through a combination of crushing, dissociation and precise grading functions, it processes the raw materials into the form and particle size that meet the requirements of subsequent melt extrusion, spinning or film making processes. Essentially, it is an automated equipment system that integrates crushing and grading units.

[0003] Nylon film is an organic synthetic material. It is made by converting polyamide compounds into film materials with specific properties through organic chemical synthesis methods. It has advantages such as good transparency, good gloss, and high tensile strength.

[0004] The existing patent (publication number: CN223016035U) includes a fixing frame, which is fixedly installed at the end of the conveyor frame and the front end of the winding device. First electric push rods are symmetrically fixedly installed on both sides of the fixing frame. A mounting plate is fixedly installed through the moving end of the first electric push rods, passing through the fixing frame. A mounting bracket is fixedly installed on one side of the mounting plate, and a second electric push rod is fixedly installed at the end of the mounting bracket. The first electric push rod drives the extrusion rollers closer to the nylon film. The second electric push rod pulls the mounting block, causing the two extrusion rollers to move closer together, extruding the nylon film. Then, the first electric push rod drives the mounting plate to move, and the extrusion of the nylon film by the two extrusion rollers pulls the nylon film, controlling the deflection position of the nylon film and straightening it to the center. As the nylon film is wound up, a correction operation is performed on the nylon film.

[0005] To address the aforementioned issues, existing patents have provided solutions. However, current methods for crushing and grading raw materials in nylon film production typically involve feeding the nylon film raw materials into a pulverizer and then placing different screens inside the pulverizer to achieve crushing and grading of the nylon film raw materials. While this method can crush and grade the nylon film raw materials, the grading efficiency is low, and it cannot achieve other auxiliary effects during the crushing and grading process, thus lacking practicality.

[0006] To address this, a crushing and grading device for raw materials used in nylon film production is proposed. Utility Model Content

[0007] The purpose of this invention is to provide a crushing and grading device for nylon film production raw materials, which can solve the problems of existing crushing and grading methods for nylon film production raw materials. Typically, the nylon film raw materials are fed into the inside of a crusher, and different screens are placed inside the crusher to achieve crushing and grading of the nylon film raw materials. Although this method can crush and grade the nylon film raw materials, the grading efficiency is low, and no other auxiliary effects can be achieved during the crushing and grading process of the nylon film raw materials, resulting in insufficient practicality.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a crushing and grading device for raw materials used in nylon film production, comprising a mounting frame, wherein a crushing mechanism is fixedly connected to the left side of the mounting frame, and an auxiliary mechanism is threadedly connected to the front side of the mounting frame;

[0009] The crushing mechanism includes a motor, a fixed shaft, a mounting rod, a crushing roller, a gear, several fixed rods, a protrusion, and a filter plate. The motor is fixedly connected to the left side of the mounting frame, the fixed shaft is fixedly connected to the output end of the motor, the mounting rod is movably connected to the inner wall of the mounting frame, the crushing roller is fixedly connected to the surfaces of the fixed shaft and the mounting rod, the gear is fixedly connected to one end of the fixed shaft and the mounting rod, the several fixed rods pass through the left inner wall of the mounting frame, the protrusion is fixedly connected to the surface of the fixed rod, and the filter plate is movably connected directly above the protrusion.

[0010] Preferably, the auxiliary mechanism includes an electromagnetic separator and a mounting frame, the mounting frame being threadedly connected to the front side of the mounting bracket, and the electromagnetic separator being fixedly connected to the inner wall of the mounting frame.

[0011] Preferably, a feed hopper is fixedly connected to the top of the mounting frame, and a material level sensor is fixedly connected to the left side of the feed hopper.

[0012] Preferably, mounting wheels are fitted onto the surface of the fixed shaft and the surface of several fixed rods, and a linkage belt is movably connected to the inner wall of the mounting wheels.

[0013] Preferably, a PLC controller is fixedly connected to the left side of the mounting frame, and a discharge hopper is fixedly connected to the front side of the mounting frame.

[0014] Preferably, a cyclone separator is fixedly connected to the front side of the discharge hopper, and a cloth bag is snapped into the bottom of the cyclone separator.

[0015] Preferably, the left side of the mounting frame is movably connected to several mounting doors, the left side of the mounting frame is fixedly connected to a mounting plate, and the top of the mounting plate is movably connected to a storage box.

[0016] Preferably, a support platform is fixedly connected to the left side of the mounting frame, the motor is fixedly connected to the top of the support platform, an observation window is provided on the front side of the mounting frame, and a base plate is fixedly connected to the bottom of the mounting frame.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application sets up a crushing mechanism, with a motor driving the crushing roller to rotate, and a gear transmission to achieve double roller counter-crushing, which can efficiently disintegrate nylon raw material agglomerates. At the same time, the fixed rod drives the protrusion to vibrate, causing the filter plate to shake at high frequency, avoiding screen clogging, and increasing the grading efficiency to several times that of traditional fixed screens. Filter plates with different apertures can be quickly replaced and installed to adapt to different particle size requirements, solving the problems of low grading efficiency and poor adaptability of traditional grading.

[0019] 2. This application incorporates an electromagnetic separator in its auxiliary mechanisms to adsorb metallic impurities in raw materials, preventing contamination in subsequent processes. A level sensor monitors the feed rate in real time, and a PLC controller controls the feed speed to prevent equipment overload. Furthermore, a cyclone separator works in conjunction with a filter bag to collect nylon dust generated during crushing, preventing dust diffusion. An observation window facilitates real-time monitoring of the equipment's operating status. These rich auxiliary functions significantly enhance the equipment's practicality and environmental friendliness. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of a nylon film production raw material crushing and grading device according to the present invention;

[0021] Figure 2 This is a partial structural diagram of the left side of the mounting bracket of this utility model;

[0022] Figure 3 This is a partial structural schematic diagram of the auxiliary mechanism of this utility model;

[0023] Figure 4 This is a partial structural diagram of the inner wall of the mounting bracket of this utility model;

[0024] Figure 5 This is a partial structural diagram of the inside of the discharge hopper of this utility model.

[0025] In the diagram, 1. Crushing mechanism; 11. Motor; 12. Fixed shaft; 13. Mounting rod; 14. Crushing roller; 15. Gear; 16. Fixed rod; 17. Protrusion; 18. Filter plate; 19. Material level sensor; 2. Auxiliary mechanism; 21. Electromagnetic separator; 22. Mounting frame; 23. Feed hopper; 24. Linkage belt; 25. PLC controller; 26. Mounting wheel; 27. Discharge hopper; 28. Cyclone separator; 29. ​​Filter bag; 3. Mounting frame; 4. Base plate; 5. Mounting door; 6. Storage box; 8. Observation window. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figure 1-5 The present invention provides the following technical solution:

[0028] A crushing and grading device for raw materials used in nylon film production includes a mounting frame 3, a crushing mechanism 1 fixedly connected to the left side of the mounting frame 3, and an auxiliary mechanism 2 threadedly connected to the front side of the mounting frame 3.

[0029] The crushing mechanism 1 includes a motor 11, a fixed shaft 12, a mounting rod 13, a crushing roller 14, a gear 15, several fixed rods 16, a protrusion 17, and a filter plate 18. The motor 11 is fixedly connected to the left side of the mounting frame 3, the fixed shaft 12 is fixedly connected to the output end of the motor 11, the mounting rod 13 is movably connected to the inner wall of the mounting frame 3, the crushing roller 14 is fixedly connected to the surface of the fixed shaft 12 and the mounting rod 13, the gear 15 is fixedly connected to one end of the fixed shaft 12 and the mounting rod 13, several fixed rods 16 pass through the inner left side of the mounting frame 3, the protrusion 17 is fixedly connected to the surface of the fixed rod 16, and the filter plate 18 is movably connected directly above the protrusion 17.

[0030] In this embodiment: the mounting frame 3 is set as the basic support frame of the equipment and is made of steel plate welding, which has both strength and stability. The crushing mechanism 1 is set to realize the core of raw material crushing and grading. The auxiliary mechanism 2 is set to provide support in terms of impurity removal, material level control and dust collection. The two work together to realize the automated process of feeding, crushing, impurity removal, grading and dust removal, replacing traditional manual operation.

[0031] Specifically, such as Figure 2 , Figure 3 , Figure 5 As shown, the auxiliary mechanism 2 includes an electromagnetic separator 21 and a mounting frame 22. The mounting frame 22 is threadedly connected to the front side of the mounting bracket 3, and the electromagnetic separator 21 is fixedly connected to the inner wall of the mounting frame 22.

[0032] Specifically, such as Figure 2 , Figure 3 As shown, a feed hopper 23 is fixedly connected to the top of the mounting frame 3, and a material level sensor 19 is fixedly connected to the left side of the feed hopper 23.

[0033] Specifically, such as Figure 2 , Figure 3 As shown, mounting wheels 26 are fitted onto the surface of the fixed shaft 12 and the surface of several fixed rods 16, and a linkage belt 24 is movably connected to the inner wall of the mounting wheels 26.

[0034] In this embodiment: By setting up a material level sensor 19, which is an infrared sensor, when the raw material in the feed hopper 23 exceeds the preset height, a signal is sent to the PLC controller 25 to stop feeding and prevent equipment overload. By setting up an electromagnetic separator 21, which is a DC electromagnetic type with a large magnetic field strength, it can adsorb metal impurities such as iron filings and steel slag mixed in the raw material, so as to avoid damaging the screw or affecting the quality of the film material during subsequent melting.

[0035] Specifically, such as Figure 2 , Figure 3 As shown, a PLC controller 25 is fixedly connected to the left side of the mounting frame 3, and a discharge hopper 27 is fixedly connected to the front side of the mounting frame 3.

[0036] Specifically, such as Figure 3 As shown, a cyclone separator 28 is fixedly connected to the front side of the discharge hopper 27, and a cloth bag 29 is snapped into the bottom of the cyclone separator 28.

[0037] In this embodiment: a motor 11, specifically a three-phase asynchronous motor 11, is fixed on a support platform to ensure stable operation. After startup, the motor 11 drives the fixed shaft 12 to rotate. The fixed shaft 12 drives the mounting rod 13 to rotate in the opposite direction via gear 15, causing the two sets of crushing rollers 14 to rotate in opposite directions. The surface of the crushing rollers 14 is provided with wear-resistant teeth, which can efficiently crush lumps of nylon raw materials. The fixed shaft 12 drives the fixed rod 16 to rotate via mounting wheel 26 and linkage belt 24. The protrusions 17 on the surface of the fixed rod 16 periodically impact the filter plate 18, causing the filter plate 18 to generate high-frequency vibration, preventing raw material particles from clogging the screen holes. The grading efficiency is increased to several times that of traditional equipment. By setting the filter plate 18, which is made of stainless steel, multiple layers of different apertures can be installed. Multiple filter plates 18 can achieve multi-particle size grading. By setting the feed hopper 23, which adopts a funnel design, batch feeding is convenient.

[0038] Specifically, such as Figure 4 As shown, several mounting doors 5 are movably connected to the left side of the mounting frame 3, a mounting plate is fixedly connected to the left side of the mounting frame 3, and a storage box 6 is movably connected to the top of the mounting plate.

[0039] Specifically, such as Figure 2 , Figure 3 , Figure 5 As shown, a support platform is fixedly connected to the left side of the mounting frame 3, the motor 11 is fixedly connected to the top of the support platform, an observation window 8 is provided on the front side of the mounting frame 3, and a base plate 4 is fixedly connected to the bottom of the mounting frame 3.

[0040] In this embodiment: by setting the PLC controller 25, parameters such as the rotation speed of the crushing roller 14 and the feeding speed can be preset, and the working sequence of the motor 11 and the electromagnetic separator 21 can be coordinated to achieve automated operation. The qualified raw materials after crushing and grading are transported to the downstream equipment through the discharge hopper 27. The nylon dust generated during the crushing process is sucked in by the cyclone separator 28. After the airflow is rotated and separated, the dust falls into the bottom filter bag 29, and the purified air is discharged to avoid dust pollution. By setting the installation door 5 and using a hinge connection, the large particles of impurities remaining on the filter plate 18 can be cleaned after opening. The impurities fall into the collection box 6 for unified treatment. By setting the observation window 8 and using a transparent acrylic plate, it is convenient for operators to monitor the crushing and grading status in real time. By setting the base plate 4 and using cast iron material, it is possible to prevent the vibration generated during the operation of the equipment from causing displacement and improve the overall stability.

[0041] Working Principle: When users need to process raw materials for nylon membrane production, they first select multiple filter plates 18 with different pore sizes according to downstream process requirements and install them from top to bottom, placing them above the protrusions 17. The installation door 5 is then closed to ensure the equipment is sealed. After completion, parameters such as the rotation speed of the crushing roller 14 and the threshold value of the material level sensor 19 are set through the PLC controller 25. Then, the electromagnetic separator 21 is activated. After all this is completed, the nylon raw materials are poured into the feed hopper 23. At this time, the material level sensor 19 monitors the feed rate in real time. When the raw material reaches the threshold value, the PLC controller 25 stops feeding, powers on and starts the motor 11 to drive the crushing roller 14 to rotate in opposite directions. The raw material falls between the crushing rollers 14 and is crushed and separated. The crushed particles fall onto the filter plates 18. Simultaneously, the fixing rod 16 drives the protrusions 17 to vibrate, causing the multiple filter plates with different pore sizes to vibrate. High-frequency vibration 18 allows qualified particles to fall through the filter plate 18 into the discharge hopper 27, while unqualified large particles remain on the filter plate 18. During the falling process, the raw material particles pass under the electromagnetic separator 21, where metal impurities are adsorbed and removed. The nylon dust generated during crushing is sucked into the cyclone separator 28, where it is separated and falls into the filter bag 29, and the purified air is discharged. During the crushing process of the nylon film production raw materials, the operator can monitor the equipment's operating status through the observation window 8. If the filter plate 18 is found to be blocked, the vibration frequency can be temporarily increased through the PLC controller 25 to clear the blockage. After the blockage is cleared, the motor 11 and the electromagnetic separator 21 are turned off, the installation door 5 is opened, and the unqualified particles on the filter plate 18 are cleaned into the collection box 6. The filter bag 29 is then removed, and the collected dust is emptied. If the filter plate 18 needs to be replaced, the above steps can be repeated to process the next batch of raw materials.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements 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 crushing and grading device for raw materials used in nylon film production, comprising a mounting frame (3), characterized in that: The left side of the mounting bracket (3) is fixedly connected to a crushing mechanism (1), and the front side of the mounting bracket (3) is threadedly connected to an auxiliary mechanism (2); The crushing mechanism (1) includes a motor (11), a fixed shaft (12), a mounting rod (13), a crushing roller (14), a gear (15), several fixed rods (16), a protrusion (17), and a filter plate (18). The motor (11) is fixedly connected to the left side of the mounting frame (3). The fixed shaft (12) is fixedly connected to the output end of the motor (11). The mounting rod (13) is movably connected to the inner wall of the mounting frame (3). The crushing roller (14) is fixedly connected to the surface of the fixed shaft (12) and the mounting rod (13). The gear (15) is fixedly connected to one end of the fixed shaft (12) and the mounting rod (13). The several fixed rods (16) pass through the inner left side of the mounting frame (3). The protrusion (17) is fixedly connected to the surface of the fixed rod (16). The filter plate (18) is movably connected directly above the protrusion (17).

2. The nylon film production raw material crushing and grading device according to claim 1, characterized in that: The auxiliary mechanism (2) includes an electromagnetic separator (21) and a mounting frame (22). The mounting frame (22) is threadedly connected to the front side of the mounting bracket (3), and the electromagnetic separator (21) is fixedly connected to the inner wall of the mounting frame (22).

3. The nylon film production raw material crushing and grading device according to claim 1, characterized in that: The top of the mounting bracket (3) is fixedly connected to a feed hopper (23), and the left side of the feed hopper (23) is fixedly connected to a level sensor (19).

4. The nylon film production raw material crushing and grading device according to claim 1, characterized in that: Mounting wheels (26) are fitted onto the surface of the fixed shaft (12) and the surface of several fixed rods (16), and a linkage belt (24) is movably connected to the inner wall of the mounting wheels (26).

5. The nylon film production raw material crushing and grading device according to claim 1, characterized in that: A PLC controller (25) is fixedly connected to the left side of the mounting frame (3), and a discharge hopper (27) is fixedly connected to the front side of the mounting frame (3).

6. The nylon film production raw material crushing and grading device according to claim 5, characterized in that: A cyclone separator (28) is fixedly connected to the front side of the discharge hopper (27), and a cloth bag (29) is snapped into the bottom of the cyclone separator (28).

7. The nylon film production raw material crushing and grading device according to claim 1, characterized in that: The left side of the mounting frame (3) is movably connected to several mounting doors (5), the left side of the mounting frame (3) is fixedly connected to a mounting plate, and the top of the mounting plate is movably connected to a storage box (6).

8. The nylon film production raw material crushing and grading device according to claim 1, characterized in that: A support platform is fixedly connected to the left side of the mounting frame (3), the motor (11) is fixedly connected to the top of the support platform, an observation window (8) is opened on the front side of the mounting frame (3), and a base plate (4) is fixedly connected to the bottom of the mounting frame (3).

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