Compression roller device with active or passive dual-mode switching function

Abstract

The utility model discloses a compression roller device with an active or passive dual-mode switching function, and belongs to the technical field of carbon fiber production equipment. Which comprises a compression roller cross beam and is characterized in that lug seats are arranged on the left side and the right side of the front face of the compression roller cross beam, air cylinders are arranged on the front faces of the two lug seats in an inserted mode, auxiliary seats are arranged at the bottoms of the air cylinders, connecting plates are rotationally arranged at the bottoms of the auxiliary seats, and the ends, not connected with the auxiliary seats, of the connecting plates are arranged on the rear side; according to the utility model, the motor stops active driving, the electromagnetic clutch is switched to a free rotation mode, the encoder continuously monitors the rotation speed of the roller body, and the compression roller device with active compensation and active / passive dual-mode switching functions is started when the rotation speed is abnormal; while the cleaning quality is ensured, the surface scratch rate of the precursor is reduced, and the service life of equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the technical field of carbon fiber production equipment, specifically relating to a pressure roller device with active or passive dual-mode switching function. Background Technology

[0002] The washing process in carbon fiber precursor yarn directly determines the chemical purity and microstructure uniformity of the precursor yarn, serving as a crucial bridge between spinning and high-temperature treatment. Within the washing process, the washing pressure roller (or extrusion roller, dewatering roller) is one of the core pieces of equipment. Its role extends beyond mechanical dewatering; it is a key component that directly affects washing efficiency, fiber structural integrity, and the performance of the final product.

[0003] Currently, the washing process of carbon fiber precursor generally adopts passive pressure roller technology, which has the following systemic defects: the passive roller relies on the fiber traction force to drive the rotation, and the rotation speed is forced to be synchronized with the fiber movement speed, resulting in insufficient friction contact time between the roller surface and the fiber, and incomplete cleaning of residual spinning solvent; when the fiber running speed fluctuates, the passive roller cannot actively adjust the rotation speed to match, which can easily cause scratches on the fiber surface or abnormal tension; being in a passive and forced rotation state for a long time leads to abnormal wear of the bearing system. Utility Model Content

[0004] The present invention mainly addresses the technical problems existing in the prior art and provides a pressure roller device with active or passive dual-mode switching function.

[0005] The above-mentioned technical problems of this utility model are mainly solved by the following technical solution: a pressure roller device with active or passive dual-mode switching function, including a pressure roller beam, characterized in that: ear seats are provided on both the left and right sides of the front of the pressure roller beam, a cylinder is inserted into the front of each of the two ear seats, an auxiliary seat is provided at the bottom of the cylinder, a connecting plate is rotatably provided at the bottom of the auxiliary seat, the end of the connecting plate not connected to the auxiliary seat is provided to the rear side, a connecting seat is provided at the top of the rear side of the connecting plate, the top of the connecting seat is connected to the pressure roller beam, a pressure roller is provided at the front end between the two connecting plates on the left and right, the two ends of the pressure roller are connected to the connecting plates on both sides by bearings, and an encoder is provided on the surface of one end of the pressure roller, an electromagnetic clutch is provided at the other end of the pressure roller, and a first pulley is sleeved on the surface of the electromagnetic clutch, a motor mounting plate is provided at the rear end of the connecting plate connected to the electromagnetic clutch, a motor is provided on one side of the motor mounting plate, one end of the motor passes through the motor mounting plate to the other end, and a second pulley is sleeved on the surface of the motor, and a belt is sleeved between the first pulley and the second pulley.

[0006] Preferably, an idler pulley is pressed down at the top of the middle section of the belt, and the idler pulley is rotatably mounted on the connecting plate.

[0007] Preferably, the electromagnetic clutch includes an induction coil, a hub, friction plates, and bearing components. The bearing components are sleeved on the inner ring of the first pulley, and the first pulley is sleeved on the surface of the pressure roller through the bearing components. The induction coil is disposed between the first pulley and the connecting plate, and is sleeved on the surface of the pressure roller. Therefore, the hub is sleeved on the outer surface of the induction coil, and the friction plates are disposed between the induction coil and the first pulley.

[0008] The beneficial effects of this utility model are as follows: the motor stops active driving and switches to free rotation mode through electromagnetic clutch; the encoder continuously monitors the roller speed and activates active compensation when abnormal; the pressure roller device with active / passive dual-mode switching function reduces the scratch rate of the raw yarn surface and extends the service life of the equipment while ensuring cleaning quality through innovative drive control strategy. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0010] Figure 2 This is a side view of one aspect of the present invention.

[0011] Figure 3 This is a schematic diagram of a rear view structure of this utility model;

[0012] Figure 4 This is a cross-sectional structural schematic diagram of this utility model.

[0013] In the diagram: 1. Pressure roller crossbeam; 2. Ear seat; 3. Cylinder; 31. Auxiliary seat; 4. Pressure roller; 5. First pulley; 6. Second pulley; 7. Belt; 8. Connecting plate; 9. Idler pulley; 10. Connecting seat; 11. Encoder; 12. Motor; 13. Motor mounting plate; 14. Electromagnetic clutch; 141. Induction coil; 142. Hub; 143. Friction plate; 144. Bearing component. Detailed Implementation

[0014] The technical solution of this utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings.

[0015] Example: A pressure roller device with active or passive dual-mode switching function, such as Figures 1-4As shown, the device includes a pressure roller 4 crossbeam 1. Ear seats 2 are provided on both the left and right sides of the front of the pressure roller 4 crossbeam 1. A cylinder 3 is inserted into the front of each ear seat 2. An auxiliary seat 31 is provided at the bottom of each cylinder 3. A connecting plate 8 is rotatably mounted on the bottom of the auxiliary seat 31. The end of the connecting plate 8 not connected to the auxiliary seat 31 is positioned towards the rear. A connecting seat 10 is provided at the top rear side of the connecting plate 8. The top of the connecting seat 10 is connected to the pressure roller 4 crossbeam 1. A pressure roller 4 is provided at the front end between the two connecting plates 8 on the left and right sides. The two ends of the pressure roller 4 are connected to the connecting plates 8 on both sides via bearings. The pressure roller 4 is connected to an encoder 11 on one end and an electromagnetic clutch 14 on the other end. A first pulley 5 is fitted onto the surface of the electromagnetic clutch 14. A motor mounting plate 13 is provided at the rear end of a connecting plate 8 connected to one side of the electromagnetic clutch 14. A motor 12 is provided on one side of the motor mounting plate 13. One end of the motor 12 passes through the motor mounting plate 13 to the other end and a second pulley 6 is fitted onto its surface. A belt 7 is fitted between the first pulley 5 and the second pulley 6. An idler pulley 9 is pressed down on the top of the middle section of the belt 7 and rotates on the connecting plate 8.

[0016] The electromagnetic clutch 14 includes an induction coil 141, a hub 142, a friction plate 143, and a bearing 144. The bearing 144 is sleeved on the inner ring of the first pulley 5, and the first pulley 5 is sleeved on the surface of the pressure roller 4 through the bearing 144. The induction coil 141 is located between the first pulley 5 and the connecting plate 8, and is sleeved on the surface of the pressure roller 4. Therefore, the hub 142 is sleeved on the outer surface of the induction coil 141, and the friction plate 143 is located between the induction coil 141 and the first pulley 5.

[0017] The principle of this utility model:

[0018] The process consists of three phases: startup (active mode), mode switching determination, and passive maintenance.

[0019] Startup phase (active mode):

[0020] The mechanism for switching between the active rotation modes of the pressure roller 4 and the motor 12, driven by a preset speed (adjustable from 20-200 rpm), is as follows:

[0021] Mode switching is triggered when any of the following conditions are detected:

[0022] a) The continuous stable operation time reaches the preset value.

[0023] b) Difference between fiber traction speed and roller linear speed.

[0024] Friction plate 143 is elastically connected to the first pulley 5, and hub 142 is rigidly connected to pressure roller 4 via a key. In this mode, the PLC controls the electromagnetic clutch 14 to be energized, and the induction coil is energized to generate a magnetic field, which attracts friction plate 143. Hub 142 and friction plate 143 press and move synchronously. At this time, pressure roller 4 and first pulley 5 also move synchronously. PLC controls motor 12 to move, and motor 12 drives second pulley 6. Second pulley 6 transmits power to first pulley 5 through belt 7. Under the action of second pulley 6, pressure roller 4 rotates actively.

[0025] Passive maintenance phase:

[0026] Motor 12 stops active driving and switches to free rotation mode via electromagnetic clutch 14.

[0027] Passive mode: Friction plate 143 is elastically connected to the first pulley 5, and hub 142 is rigidly connected to pressure roller 4 via a key. In this mode, the PLC controls the electromagnetic clutch 14 to be de-energized, the induction coil does not generate a magnetic field, and does not engage friction plate 143. Hub 142 and friction plate 143 separate and move independently. At this time, pressure roller 4 and the first pulley 5 also move independently. Pressure roller 4 achieves passive rotation. PLC controls motor 12 to stop moving, and first pulley 5, belt 7, and second pulley 6 all stop moving.

[0028] Encoder 11 continuously monitors the roller speed and initiates active compensation when an abnormality occurs.

[0029] The pressure roller 4 device with active / passive dual-mode switching function reduces the scratch rate on the raw yarn surface and extends the service life of the equipment while ensuring cleaning quality through an innovative drive control strategy.

[0030] Finally, it should be noted that the above embodiments are merely representative examples of this utility model. Obviously, this utility model is not limited to the above embodiments and many variations are possible. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model should be considered to fall within the protection scope of this utility model.

Claims

1. A pressure roller device with active or passive dual-mode switching function, comprising a pressure roller crossbeam (1), characterized in that: The pressure roller beam (1) has ear seats (2) on both the left and right sides of its front. A cylinder (3) is inserted into the front of each ear seat (2). An auxiliary seat (31) is located at the bottom of each cylinder (3). A connecting plate (8) is rotatably mounted on the bottom of the auxiliary seat (31). The end of the connecting plate (8) not connected to the auxiliary seat (31) is positioned towards the rear. A connecting seat (10) is located at the top rear of the connecting plate (8). The top of the connecting seat (10) is connected to the pressure roller beam (1). A pressure roller (4) is located at the front end between the two connecting plates (8) on the left and right sides. Both ends of the pressure roller (4) are connected to the connecting plates on both sides. The connecting plates (8) are connected by bearings, and one end of the pressure roller (4) is provided with an encoder (11) on its surface. The other end of the pressure roller (4) is provided with an electromagnetic clutch (14). At the same time, the surface of the electromagnetic clutch (14) is fitted with a first pulley (5). The rear end of the connecting plate (8) connected to one side of the electromagnetic clutch (14) is provided with a motor mounting plate (13). One side of the motor mounting plate (13) is provided with a motor (12). One end of the motor (12) passes through the motor mounting plate (13) to the other end, and the surface is fitted with a second pulley (6). A belt (7) is fitted between the first pulley (5) and the second pulley (6).

2. The pressure roller (4) device with active or passive dual-mode switching function according to claim 1, characterized in that: An idler wheel (9) is pressed down on the top of the middle section of the belt (7), and the idler wheel (9) is rotatably mounted on the connecting plate (8).

3. The pressure roller (4) device with active or passive dual-mode switching function according to claim 1, characterized in that: The electromagnetic clutch (14) includes an induction coil (141), a hub (142), a friction plate (143), and a bearing (144). The bearing (144) is sleeved on the inner ring of the first pulley (5), and the first pulley (5) is sleeved on the surface of the pressure roller (4) through the bearing (144). The induction coil (141) is located between the first pulley (5) and the connecting plate (8), and is sleeved on the surface of the pressure roller (4). Therefore, the hub (142) is sleeved on the outer surface of the induction coil (141). The friction plate (143) is located between the induction coil (141) and the first pulley (5).

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