Chemical fiber cutting device

Abstract

The utility model relates to the technical field of chemical fiber cutting, and provides a chemical fiber cutting device which comprises a rack, a permanent magnet synchronous direct drive motor is fixedly connected to the top of the rack, a main shaft penetrates through the bottom of the permanent magnet synchronous direct drive motor, and a cutting cutter head is fixedly connected to the end, away from the permanent magnet synchronous direct drive motor, of the main shaft. Chemical fibers are cut through the cut-off cutter head, efficiency is high, operation is easy, the cut-off cutter head is made of metal and located below the rack, the cut-off cutter head made of the metal is hard, not prone to damage and high in cutting efficiency, quantity control lubricating equipment is arranged at the top of the rack, and the cut-off cutter head made of the metal is located below the rack. The quantity-controlled lubricating equipment comprises a rectangular box, the bottom of the rectangular box is fixedly connected to the top of the rack, a fixing plate is fixedly connected to the inner wall of the rectangular box, and by means of the technical scheme, the problems that in the prior art, chemical fiber cutting equipment is large in vibration and noise are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a chemical fiber cutting technology field, specifically, a chemical fiber cutting device. BACKGROUND

[0002] In the field of chemical fibers, the common form of cutting machine is pressure wheel pressure cutting. That is, all blades on the cutter head are arranged vertically along the circumference, with the cutting edge facing outward, in a radial arrangement. The distance between the cutting edges of the blades is the required cutting length. The cutter head rotates to feed the filament bundle, and the parallel pressure wheel squeezes the filament bundle wrapped around the cutting edge of the blade to cause cutting. The transmission form of this type of cutting equipment is usually a frequency conversion motor connected to a worm reducer through a shaft coupling, and the reducer is connected to the main shaft of the equipment, so that the main shaft rotates. This transmission method requires high installation precision, has many fault points, and has high cost. The commonly used turbine worm reducer is usually installed on the top of the equipment, which not only has low transmission efficiency, but also vibrates greatly and makes high noise due to its structural characteristics. Even the output shaft end oil seal leaks, lubricating oil flows down the main shaft and drips on the cutter head, which pollutes the fiber and causes quality loss to the customer.

[0003] Permanent magnet synchronous direct drive motor, as a new type of transmission motor, can be used in more and more working occasions. The magnetic field of the permanent magnet synchronous direct drive motor is generated by the permanent magnet. The permanent magnet is embedded on the rotor of the motor, replacing the squirrel cage or winding on the rotor of the asynchronous motor. The rotor core has no iron loss and does not need reactive excitation current. Due to the inherent characteristics of the permanent magnet, a magnetic field can be established around the space without external energy, thereby avoiding the excitation loss caused by generating a magnetic field through excitation current, achieving low speed and large torque, and having low running speed and large output torque. Therefore, it is efficient, high in power factor, and more energy-saving. Compared with asynchronous machines, it has smaller size and higher power density.

[0004] According to a kind of continuous high-speed cutting device of chemical fiber (publication number: CN 210001973 U) disclosed, it includes cutter head frame, cutter head, transmission shaft, push ring, pressure disc, air injection device, liquid injection device and exhaust hood, wherein the pressure disc is pressed on the cutter head, the cutter head is installed on the cutter head frame, the push ring is arranged on the pressure disc, the liquid injection device is a liquid injection pipe, the liquid injection pipe enters the cutter head frame, etc.

[0005] In the above application, through the cooperation between the cutter head, the transmission shaft and the push ring, it is difficult to solve the problem of large vibration and noise in the chemical fiber cutting device, which causes large vibration and noise, affects the working environment, and needs to be improved. UTILITY MODEL CONTENTS

[0006] The utility model provides a kind of chemical fiber cutting device, solve the problem raised in the above document.

[0007] The utility model discloses a technical scheme as follows: a chemical fiber cutting device, including the frame, the top fixed connection of frame has permanent magnet synchronous direct drive motor, the bottom of permanent magnet synchronous direct drive motor is penetrated with the main shaft.

[0008] Further, one end of the main shaft away from the permanent magnet synchronous direct drive motor is fixedly connected with a cutting cutter, which cuts the chemical fiber, is efficient, and is simple to operate.

[0009] Further, the cutting cutter is made of metal material, and the cutting cutter is located below the frame. The cutting cutter made of metal material is relatively hard and is not easy to be damaged, and the cutting efficiency is high.

[0010] Further, the top of the frame is provided with a quantity control lubricating equipment, the quantity control lubricating equipment includes a rectangular box, the bottom of the rectangular box is fixedly connected to the top of the frame, a fixed plate is fixedly connected to the inner wall of the rectangular box, a movable plate is slidably connected to the inner wall of the rectangular box, an oil outlet pipe is penetrated through the side of the rectangular box, a push rod is fixedly connected to the top of the movable plate, a notch is formed in the top of the frame, and the oil outlet pipe is located on the inner wall of the notch. The main shaft is lubricated by lubricating oil to prevent the main shaft from being stuck.

[0011] Further, one end of the push rod away from the movable plate is penetrated through the top of the rectangular box, and one end of the oil outlet pipe away from the rectangular box is located on the side of the main shaft. Such a design can facilitate the flow of lubricating oil to the main shaft.

[0012] Further, the fixed plate is provided with two fixed plates, and the two fixed plates are symmetrical along the vertical central axis of the movable plate. A limiting rod is fixedly connected to the inner wall of the rectangular box, and one end of the limiting rod away from the rectangular box is penetrated through the bottom of the movable plate. The limiting rod can limit the movable plate to prevent the movable plate from deviating during movement.

[0013] Further, a spring is fixedly connected to the inner wall of the rectangular box, and one end of the spring away from the rectangular box is fixedly connected to the bottom of the movable plate. The spring can facilitate the automatic resetting of the movable plate when the movable plate is not subjected to extrusion.

[0014] Further, the spring is provided with two springs, and the two springs are symmetrical along the vertical central axis of the movable plate. The limiting rod is provided with two limiting rods, and the two limiting rods are symmetrical along the vertical central axis of the rectangular box. The two springs and the two limiting rods can further limit and reset.

[0015] Further, the top of the frame is fixedly connected with an oil tank, one end of the oil tank is penetrated with an oil conveying pipe, and one end of the oil conveying pipe away from the oil tank is penetrated in the side of the rectangular box. The oil tank facilitates the storage of lubricating oil, and the oil conveying pipe is used to flow the lubricating oil into the rectangular box.

[0016] Further, the top of the oil tank is penetrated by a supplement pipe, and the top of the supplement pipe is provided with a cover plate, so that the supplement pipe facilitates oil supplement of the oil tank.

[0017] The working principle and beneficial effects of the utility model are as follows:

[0018] 1. In the utility model, the introduction of the motor into the chemical fiber cutting device is realized through the mutual cooperation between the permanent magnet synchronous direct drive motor and the main shaft and other components, the traditional complex transmission mode is abandoned, the permanent magnet synchronous direct drive motor is directly connected with the main shaft of the cutting machine in the power transmission mode, the transmission mode has low cost, simple structure, convenient disassembly and assembly, high transmission efficiency, low noise, no vibration, no oil leakage, and the motor is maintenance-free, which saves a lot of maintenance cost.

[0019] 2. In the utility model, the mutual cooperation between the rectangular box, the fixed plate, the moving plate, the oil outlet pipe and other components in the controlled lubrication equipment is realized, so that the oil outlet pipe only flows out lubricating oil when the push rod and the moving plate move downward, the oil outlet amount is controlled, the accurate lubrication control can effectively reduce the friction between parts, reduce wear and tear, prolong the service life of the equipment, the lubricating oil flows into the main shaft and other key components at the appropriate time, reduces the damage caused by excessive friction, maintains the stable operation of the equipment, and through the manual control of the push rod and the moving plate, the lubricating oil only flows into the lower layer and flows out through the oil outlet pipe when needed, which avoids the waste and excessive application of lubricating oil, and this is very important for the chemical fiber cutting device, because too much lubricating oil may contaminate the product and affect the cutting precision and fiber quality. BRIEF DESCRIPTION OF DRAWINGS

[0020] The utility model will be further described in detail in combination with the drawings and specific embodiments.

[0021] Figure 1 It is the installation structure schematic drawing of the transmission mode of the utility model;

[0022] Figure 2 It is the three-dimensional bottom view structure schematic drawing of the rack of the utility model;

[0023] Figure 3 It is the three-dimensional enlarged structure schematic drawing of the rectangular box of the utility model;

[0024] Figure 4 It is the three-dimensional enlarged structure schematic drawing of A in the utility model; Figure 3

[0025] Figure 5 It is the three-dimensional enlarged structure schematic drawing of B in the utility model; Figure 2

[0026] ​​In the diagram: 1. Permanent magnet synchronous direct drive motor; 2. Main shaft; 3. Cutting blade; 4. Frame; 5. Quantity control lubrication equipment; 51. Rectangular box; 52. Fixed plate; 53. Moving plate; 54. Spring; 55. Limit rod; 56. Push rod; 57. Oil outlet pipe; 58. Oil delivery pipe; 59. Oil tank; 510. Replenishment pipe; 511. Groove. Detailed Implementation

[0027] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0028] Example 1

[0029] like Figures 1-3 As shown, this embodiment proposes a chemical fiber cutting device, including a frame 4, a permanent magnet synchronous direct drive motor 1 fixedly connected to the top of the frame 4, and a main shaft 2 penetrating the bottom of the permanent magnet synchronous direct drive motor 1.

[0030] The end of the spindle 2 away from the permanent magnet synchronous direct drive motor 1 is fixedly connected to the cutting disc 3. The cutting disc 3 is used to cut the chemical fiber, which is efficient and easy to operate.

[0031] The cutting disc 3 is made of metal and is located below the frame 4. The metal cutting disc 3 is relatively hard and not easily damaged, resulting in high cutting efficiency.

[0032] In the embodiment, the transmission scheme of the utility model, the original worm gear reducer, shaft coupling and variable frequency motor in the prior art are replaced, the original permanent magnet synchronous direct drive motor 1 in the prior art is directly arranged on the top of the equipment, the hollow shaft form is adopted, the equipment main shaft 2 is directly arranged in the motor main shaft 2, and the key is fixed, which is more convenient than the past, the permanent magnet synchronous direct drive motor 1 shortens the transmission chain, cancels the intermediate transmission link such as speed reducer, the motor speed is low, the structure is smaller, the efficiency is higher, there is no oil and tooth, the risk of gear box oil leakage and gear tooth is avoided, maintenance-free is realized, the motor is introduced into the chemical fiber cutting equipment, the traditional complex transmission mode is abandoned, the permanent magnet synchronous direct drive motor 1 is directly connected with the main shaft 2 of the cutting machine, and power transmission is carried out, which not only has low cost, but also has simple structure, is convenient to disassemble and assemble, high transmission efficiency, low noise, no vibration, and no oil leakage phenomenon, and the motor is maintenance-free, so that the maintenance cost is saved, the permanent magnet synchronous direct drive motor 1 is directly arranged on the top of the equipment, the hollow shaft form is adopted, the equipment main shaft 2 is directly arranged in the motor main shaft 2, and the key is fixed, which is more convenient than the past, the permanent magnet synchronous direct drive motor 1 shortens the transmission chain, cancels the intermediate transmission link such as speed reducer, the motor speed is low, the structure is smaller, the efficiency is higher, there is no oil and tooth, the risk of gear box oil leakage and gear tooth is avoided, maintenance-free is realized, for the use unit provides good use experience, the permanent magnet synchronous direct drive motor 1 is directly connected on the main shaft 2 of the running equipment, a plurality of links are saved, the transmission efficiency is high, and the transmission is more stable and reliable.

[0033] Embodiment 2

[0034] As Figures 3-5 shown, based on the same concept as in the above embodiment 1, another embodiment is also proposed in the embodiment, the top of the rack 4 is provided with a controlled lubrication equipment 5, the controlled lubrication equipment 5 includes a rectangular box 51, the bottom of the rectangular box 51 is fixedly connected to the top of the rack 4, a fixed plate 52 is fixedly connected to the inner wall of the rectangular box 51, a movable plate 53 is slidably connected to the inner wall of the rectangular box 51, an oil outlet pipe 57 penetrates through the side of the rectangular box 51, a push rod 56 is fixedly connected to the top of the movable plate 53, a notch 511 is formed in the top of the rack 4, and the oil outlet pipe 57 is located on the inner wall of the notch 511. Lubricate the main shaft 2 with lubricating oil to prevent the main shaft 2 from rotating and jamming.

[0035] The end of the push rod 56 away from the movable plate 53 penetrates through the top of the rectangular box 51, and the end of the oil outlet pipe 57 away from the rectangular box 51 is located on the side of the main shaft 2, which can facilitate the flow of lubricating oil to the main shaft 2.

[0036] The fixed plate 52 is provided with two, and along the vertical central axis of the moving plate 53 is symmetrical, the inner wall of the rectangular box 51 is fixedly connected with a limiting rod 55, the limiting rod 55 is away from the one end of the rectangular box 51 and penetrates in the bottom of the moving plate 53, the design of the limiting rod 55 can limit the moving plate 53, prevent the deviation of the moving plate 53.

[0037] The inner wall of the rectangular box 51 is fixedly connected with a spring 54, the spring 54 is away from the one end of the rectangular box 51 and is fixedly connected in the bottom of the moving plate 53, the design of the spring 54, the moving plate 53 can be automatically reset when the moving plate 53 is not extruded.

[0038] The spring 54 is provided with two, and along the vertical central axis of the moving plate 53 is symmetrical, the limiting rod 55 is provided with two, and along the vertical central axis of the rectangular box 51 is symmetrical, the design of the two springs 54 and the two limiting rods 55 can further limit and reset.

[0039] The top of the rack 4 is fixedly connected with an oil tank 59, the oil tank 59 is penetrated with an oil pipe 58, the oil pipe 58 is away from the one end of the oil tank 59 and penetrates in the side of the rectangular box 51, the design of the oil tank 59 is convenient for storing lubricating oil, and the lubricating oil is flowed into the rectangular box 51 by the oil pipe 58.

[0040] The top of the oil tank 59 is penetrated with a supplement pipe 510, the top of the supplement pipe 510 is provided with a cover plate, the design of the supplement pipe 510 is convenient for supplementing the oil amount of the oil tank 59.

[0041] When the main shaft 2 needs to be lubricated, the push rod 56 is manually pressed down to push the push rod 56 into the interior of the rectangular box 51, and when the push rod 56 moves downward, the moving plate 53 moves downward in the interior of the rectangular box 51, the interior of the rectangular box 51 is divided into two parts by the two fixed plates 52 and the moving plate 53, so that the interior of the rectangular box 51 is divided into two layers, the oil tank 59 stores lubricating oil, the lubricating oil in the oil tank 59 is transmitted into the rectangular box 51 through the oil pipe 58, the oil pipe 58 is located in the upper layer of the rectangular box 51, so that the oil just flowing into the rectangular box 51 is located in the upper layer of the rectangular box 51, and the oil outlet pipe 57 is located in the lower layer of the rectangular box 51, so that the lubricating oil cannot flow out, when the moving plate 53 moves downward, the partition is opened to form a gap, so that the lubricating oil in the upper layer of the rectangular box 51 flows downward through the gap and flows to the lower layer of the rectangular box 51, and the lubricating oil can flow out through the oil outlet pipe 57, the oil outlet pipe 57 is located on the side of the main shaft 2, so that the main shaft 2 is lubricated, and only when the push rod 56 and the moving plate 53 move downward, the oil outlet pipe 57 can flow out the lubricating oil, the lubricating oil can be accurately controlled, the friction between parts can be effectively reduced, the wear can be reduced, and the service life of the equipment can be prolonged, the lubricating oil flows into the key parts such as the main shaft 2 at the appropriate time, which helps to reduce damage caused by excessive friction, maintains stable operation of the equipment, and accurately controls the lubricating oil through manual control of the push rod 56 and the moving plate 53, so that the lubricating oil can flow into the lower layer and flow out through the oil outlet pipe 57 only when needed, and waste and excessive application of the lubricating oil are avoided. This is very important for the chemical fiber cutting device, because too much lubricating oil may contaminate the product, affect the cutting accuracy and fiber quality.

[0042] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A chemical fiber cutting device, characterized in that, Includes a frame (4), on the top of which a permanent magnet synchronous direct drive motor (1) is fixedly connected, and a main shaft (2) passes through the bottom of the permanent magnet synchronous direct drive motor (1). The top of the frame (4) is provided with a quantity control lubrication device (5), which includes a rectangular box (51). The bottom of the rectangular box (51) is fixedly connected to the top of the frame (4). A fixed plate (52) is fixedly connected to the inner wall of the rectangular box (51), and a movable plate (53) is slidably connected to the inner wall of the rectangular box (51).

2. The chemical fiber cutting device according to claim 1, characterized in that, The main shaft (2) is fixedly connected to a cutting disc (3) at the end away from the permanent magnet synchronous direct drive motor (1).

3. The chemical fiber cutting device according to claim 2, characterized in that, The cutting blade (3) is made of metal and is located below the frame (4).

4. The chemical fiber cutting device according to claim 3, characterized in that, The rectangular box (51) has an oil outlet pipe (57) running through its side. The top of the movable plate (53) is fixedly connected to a push rod (56). The top of the frame (4) has a slot (511) and the oil outlet pipe (57) is located on the inner wall of the slot (511).

5. A chemical fiber cutting device according to claim 4, characterized in that, The push rod (56) extends through the top of the rectangular box (51) at one end away from the moving plate (53), and the oil outlet pipe (57) extends away from the rectangular box (51) at one end on the side of the main shaft (2).

6. A chemical fiber cutting device according to claim 5, characterized in that, Two fixed plates (52) are provided and are symmetrical to each other along the vertical central axis of the movable plate (53). A limiting rod (55) is fixedly connected to the inner wall of the rectangular box (51), and the end of the limiting rod (55) away from the rectangular box (51) passes through the bottom of the movable plate (53).

7. A chemical fiber cutting device according to claim 6, characterized in that, A spring (54) is fixedly connected to the inner wall of the rectangular box (51), and the end of the spring (54) away from the rectangular box (51) is fixedly connected to the bottom of the movable plate (53).

8. A chemical fiber cutting device according to claim 7, characterized in that, Two springs (54) are provided and are symmetrical to each other along the vertical central axis of the moving plate (53). Two limiting rods (55) are provided and are symmetrical to each other along the vertical central axis of the rectangular box (51).

9. A chemical fiber cutting device according to claim 8, characterized in that, An oil tank (59) is fixedly connected to the top of the frame (4). An oil pipe (58) passes through one end of the oil tank (59), and the end of the oil pipe (58) away from the oil tank (59) passes through the side of the rectangular box (51).

10. A chemical fiber cutting device according to claim 9, characterized in that, A replenishment pipe (510) is provided through the top of the oil tank (59), and a cover plate is provided on the top of the replenishment pipe (510).

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