Self-cleaning textile rubber roller grinding device and method

Abstract

The present invention discloses a self-cleaning textile cots grinding device. One end of the bed body is provided with a grinding wheel, and the other end is provided with a moving base; the outside of the grinding wheel is covered with a grinding wheel cover with an open front end, and a negative pressure dust suction device is arranged inside the grinding wheel cover; a cots positioning device is arranged on the moving base; it also includes a photoelectric detector arranged on the bed body and matching with the moving base; two mutually parallel spray pipes are also arranged on the moving base, and the spray pipes are connected to a compressed air source through solenoid valves; the photoelectric detector is electrically connected to the solenoid valves through a relay; the spray pipes have a jetting direction facing the joint of the grinding wheel and the cots positioning device. The present invention can optimize the cots grinding operation process, timely remove the adhesion on the surface of the workpiece and the grinding wheel, and improve the cots grinding quality.

Description

Technical Field

[0001] The present invention relates to textile machinery, and particularly to a textile rubber roller grinding device. Background Art

[0002] Before the textile rubber roller is installed on the machine, its surface needs to be ground with a grinding wheel first. During the grinding process, a large amount of rubber roller ash is generated and discharged through the negative pressure air suction system arranged inside the grinding wheel cover. This negative pressure air suction system is arranged at the tail of the grinding wheel cover, and it has an obvious adsorption effect on large particles. However, during the grinding process, a large amount of extremely fine ash powder is also generated, and due to reasons such as static electricity and material denaturation caused by frictional high temperature, it adheres to the surface of the grinding wheel and the workpiece, and it cannot be removed by the negative pressure air suction system, resulting in serious adhesion of ash powder on the surface of the rubber roller after grinding, large roughness differences, and the ash powder - adhered rubber roller is prone to falling off during the later installation process, resulting in static electricity sticking flowers and generating leather roller waves, thereby affecting the quality of textiles. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to optimize the rubber roller grinding operation process, timely remove the adhesions on the surface of the workpiece and the grinding wheel, and improve the quality of rubber roller grinding.

[0004] To solve the above - mentioned technical problem, the self - cleaning textile rubber roller grinding device of the present invention includes a bed body. One end of the bed body is provided with a grinding wheel, and the other end is provided with a moving base; the outside of the grinding wheel is covered with a grinding wheel cover with a front - end opening, and a negative pressure dust suction device is arranged inside the grinding wheel cover; a rubber roller positioning device is arranged on the moving base; it also includes a photoelectric detector arranged on the bed body and matching with the moving base; two mutually parallel spray pipes are also arranged on the moving base, and the spray pipes are connected to a compressed air source through solenoid valves; the photoelectric detector is electrically connected to the solenoid valves through a relay; the spray pipes have a jet direction facing the joint of the grinding wheel and the rubber roller positioning device.

[0005] The rubber roller positioning device includes a swing arm pin - shaft - connected to the moving base, and a claw is arranged at the free end of the swing arm; a left - right support is also arranged at the front end of the moving base, a small roller is pin - shaft - connected between the left - right supports, and the small roller is arranged parallel to the grinding wheel; the small roller cooperates with the claw to support the workpiece.

[0006] The small roller is arranged on the left - right supports with adjustable height.

[0007] A support plate is arranged inside the moving base, the left - right supports are fixed on both sides of the front end of the support plate, a support plate rotating shaft is arranged in the middle of the support plate, the support plate rotating shaft is movably connected to the moving base, and at least one deflection spring is arranged between the support plate rotating shaft and the moving base, and the deflection spring drives the front end of the support plate to deflect upward.

[0008] The lower ends of the left and right brackets are also provided with brush rollers matching the small rollers through pin shafts for surface cleaning of the small rollers.

[0009] The present invention also provides a self-cleaning method for grinding textile rubber rollers, including the following steps:

[0010] A. Loading

[0011] The moving base moves backward, the swing arm is driven to lift high around the axis, the front claws open, and the loading mechanism places the workpiece on the claws; the claws close, and the swing arm returns to the horizontal state around the axis; the two rubber roller surfaces of the workpiece contact the two ends of the small roller, the support plate is pressed down, and the workpiece is supported by the small roller and the claws at the same time.

[0012] B. Grinding

[0013] The moving base moves forward, and the workpiece forms a surface contact with the grinding wheel; the grinding wheel rotates to grind the surface of the workpiece; the workpiece is driven to rotate by the frictional force of the grinding wheel to achieve circumferential grinding.

[0014] C. Dust removal

[0015] Primary dust removal: When the photoelectric detector detects the forward movement of the moving base, it gives a signal to the relay to drive the solenoid valve to work for a set duration. Two spray pipes spray air at the joint of the grinding wheel and the workpiece to peel off the debris adhered to the surfaces of the grinding wheel and the workpiece, and then the debris is taken away by the negative pressure dust collection device.

[0016] Secondary dust removal: Part of the remaining debris on the workpiece is frictionally conducted to the small roller. When the small roller rotates, the brush roller is reversely rotated by the friction, and the brush roller cleans the small roller again.

[0017] Tertiary dust removal: During the grinding process, the negative pressure dust collection device in the grinding wheel cover continuously works to suck away the debris generated by grinding.

[0018] D. Unloading

[0019] After reaching the set duration, the moving base moves backward, and the workpiece is separated from the grinding wheel; the swing arm is forced to lift high around the axis, the front claws open, and the workpiece is unloaded by the unloading mechanism to enter the next cycle.

[0020] The advantages of the present invention are as follows: A. During the grinding process, high-pressure air is sprayed through two nozzles respectively at the joint between the grinding wheel and the surfaces of the two rubber rollers for timely surface self-cleaning, improving the grinding quality. The surface of the workpiece after grinding is smooth and the appearance is bright, which is beneficial to improving the quality of the final textile product. B. During the grinding process, three-level cleaning and dust removal are achieved, including cleaning the surfaces of the workpiece and the grinding wheel by nozzle jet, cleaning the surface of the small roller by the brush roller, and vacuum negative pressure dust collection, ensuring the grinding quality of the rubber roller and keeping the production environment clean. C. The small roller cooperates with the claw to support the workpiece, sharing the force load, making the rotation of the workpiece freer, which is beneficial to improving the grinding effect and reducing local harmful friction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the self-cleaning type textile rubber roller grinding device of the present invention;

[0022] Figure 2 is Figure 1 top view of;

[0023] Figure 3 is a schematic diagram of the cooperation of the moving base, swing arm and support plate. DETAILED DESCRIPTION OF THE INVENTION

[0024] As Figure 1 、 Figure 2 It can be seen that the self-cleaning type textile rubber roller grinding device of the present invention includes a bed body 1, one end of the bed body 1 is provided with a grinding wheel 2, and the other end is provided with a moving base 3; the outside of the grinding wheel 2 is covered with a grinding wheel cover 4 with a front end opening, and a negative pressure dust collection device is arranged inside the grinding wheel cover 4; a rubber roller positioning device is arranged on the moving base 3; it also includes a photoelectric detector 5 arranged on the bed body 1 and matching with the moving base 3; two mutually parallel nozzles 6 are also arranged on the moving base 3, and the nozzles 6 are connected to a compressed air source through a solenoid valve 7; the photoelectric detector 5 is electrically connected to the solenoid valve 7 through a relay; the nozzle 6 has a jet direction facing the joint between the grinding wheel 2 and the rubber roller positioning device.

[0025] The rubber roller positioning device includes a swing arm 30 pin-connected to the moving base 3, and a claw is arranged at the free end of the swing arm; the front end of the moving base 3 is also provided with left and right brackets 33, 33', a small roller 31 is pin-connected between the left and right brackets 30, 30', and the small roller 31 is arranged parallel to the grinding wheel 2; the small roller 31 cooperates with the claw to support the workpiece.

[0026] The engaging part of the claw is set to be circular, and its diameter is larger than the diameter of the middle connection part of the rubber roller as the workpiece 8, so that the workpiece 8 can rotate relative to the claw.

[0027] The height-adjustable small roller 31 is arranged on the left and right brackets 33 and 33'. Thus, the weight of the workpiece is mainly borne by the small roller 31, making the rotation of the workpiece more flexible and the surface grinding more thorough.

[0028] As Figure 3 Visible, in order to achieve the above functions, a support plate 34 is arranged in the moving base 3. The left and right brackets 33 and 33' are fixed on both sides of the front end of the support plate 34. A support plate rotating shaft 340 is arranged in the middle of the support plate 34. The support plate rotating shaft 340 is movably connected to the moving base 3. At least one deflection spring 341 is arranged between the support plate rotating shaft 340 and the moving base 3. The deflection spring 341 drives the front end of the support plate 34 to deflect upward.

[0029] In the default state, driven by the deflection spring 341, the support plate 34 deflects around the support plate rotating shaft 340, and its front end maintains an upward-tilting posture. When the swing arm 30 clamps the workpiece 8 and is in the horizontal position, the workpiece 8 presses down on the small roller 31 due to its own weight, and transmits the pressure to the deflection spring 341 through the left and right brackets 33 and 33'. At this time, part of the weight of the workpiece 8 is borne by the small roller 31, thus sharing the load on the claws of the swing arm 30, making the rotation of the workpiece 8 more flexible and greatly reducing the claw pressure.

[0030] The lower ends of the left and right brackets 33 and 33' are also provided with a brush roller 32 matching the small roller 31 through a pin shaft for surface cleaning of the small roller 31.

[0031] Working process:

[0032] A. Loading

[0033] The moving base 3 moves backward, the swing arm 30 is driven to lift high around the shaft, the front claws open, and the loading mechanism places the workpiece 8 on the claws; the claws close, and the swing arm 30 returns to the horizontal state around the shaft; the two rubber roller surfaces of the workpiece 8 contact the two ends of the small roller 31, the support plate 34 is pressed down, and the workpiece 8 is supported by both the small roller 31 and the claws at the same time;

[0034] B. Grinding

[0035] The moving base 3 moves forward, and the workpiece 8 forms a surface contact with the grinding wheel 2; the grinding wheel rotates to grind the surface of the workpiece; the workpiece 8 is driven to rotate by the frictional force of the grinding wheel to achieve circumferential grinding.

[0036] C. Dust removal

[0037] Primary dust removal: When the photoelectric detector 5 detects the forward movement of the moving base 3, it gives a signal to the relay, driving the solenoid valve 7 to work for a set duration. The two nozzles 6 blow air at the joint between the grinding wheel 2 and the rubber roller positioning device; specifically, air is blown at the joint between the grinding wheel 2 and the workpiece 8. In this embodiment, the set duration is 9S. This air-blowing action can strip the debris adhering to the surfaces of the grinding wheel 2 and the workpiece 8, which is then taken away by the negative-pressure dust suction device. The two nozzles 6 do not interfere with operations such as loading and unloading.

[0038] Secondary dust removal: The grinding wheel 2, the workpiece 8, the small roller 31, and the brush roller 32 form surface contact in sequence. Part of the remaining debris on the workpiece 8 is frictionally conducted to the small roller 31. When the small roller 31 rotates, the brush roller 32 is frictionally reversed, and the brush roller 32 cleans the small roller 31 again. The brush roller 32 is equipped with relatively fine metal brush filaments to prevent electrostatic accumulation.

[0039] Tertiary dust removal: During the grinding process, the negative-pressure dust suction device in the grinding wheel cover 4 continuously works to suck away the debris generated by grinding.

[0040] D. Unloading

[0041] After reaching the set duration, the moving base 3 moves backward, and the workpiece 8 separates from the grinding wheel 2; the swing arm 30 is forced to lift high around the axis, and the front claw opens, and the workpiece is unloaded by the unloading mechanism, entering the next cycle.

[0042] The implementation methods of the loading mechanism and the unloading mechanism will not be elaborated here.

Claims

1. A self-cleaning textile cots grinding device, comprising a bed body (1), characterized in that: One end of the bed body (1) is provided with a grinding wheel (2), and the other end is provided with a moving base (3); the outside of the grinding wheel (2) is covered with a grinding wheel cover (4) with a front end opening, and a negative pressure dust suction device is arranged in the grinding wheel cover (4); a rubber roller positioning device is arranged on the moving base (3); further included is a photoelectric detector (5) arranged on the bed body (1) and matching with the moving base (3); two spray pipes (6) parallel to each other are further arranged on the moving base (3), and the spray pipes (6) are connected to a compressed air source through electromagnetic valves (7); the photoelectric detector (5) is electrically connected to the electromagnetic valve (7) through a relay; the spray pipes (6) have a jet direction facing the joint of the grinding wheel (2) and the rubber roller positioning device; The rubber roller positioning device includes a swing arm (30) pin-connected to the moving base (3), and a claw is arranged at the free end of the swing arm; the front end of the moving base (3) is further provided with left and right brackets (33, 33'), a small roller (31) is pin-connected between the left and right brackets (30, 30'), and the small roller (31) is arranged parallel to the grinding wheel (2); the small roller (31) cooperates with the claw to support the workpiece; The small roller (31) is arranged on the left and right brackets (33, 33') with adjustable height; A support plate (34) is arranged in the moving base (3), the left and right brackets (33, 33') are fixed on both sides of the front end of the support plate (34), a support plate rotating shaft (340) is arranged in the middle of the support plate (34), the support plate rotating shaft (340) is movably connected to the moving base (3), and at least one deflection spring (341) is arranged between the support plate rotating shaft (340) and the moving base (3), and the deflection spring (341) drives the front end of the support plate (34) to deflect upward; 2. The self-cleaning textile cots grinding device according to claim 1, wherein: The lower ends of the left and right brackets (33, 33') are further provided with a brush roller (32) matching with the small roller (31) through a pin shaft for surface cleaning of the small roller (31); 3. The using method of the self-cleaning textile rubber roller grinding device according to claim 2, comprising the following steps: A. Loading The moving base (3) moves backward, the swing arm (30) is driven to lift high around the axis, the front end claw opens, and the loading mechanism places the workpiece (8) on the claw; the claw closes, and the swing arm (30) returns to the horizontal state around the axis; the two rubber roller surfaces of the workpiece (8) are in contact with both ends of the small roller (31), the support plate (34) is pressed down, and the workpiece (8) is supported by the small roller and the claw at the same time; B. Grinding The moving base (3) moves forward, and the workpiece (8) forms a surface contact with the grinding wheel (2); the grinding wheel rotates to grind the surface of the workpiece; the workpiece (8) is driven to rotate by the frictional force of the grinding wheel to realize circumferential grinding; C. Dust removal Primary dust removal: When the photoelectric detector (5) detects the forward movement of the moving base (3), it gives a signal to the relay to drive the solenoid valve (7) to work for a set duration. Two nozzles (6) blow air towards the joint of the grinding wheel (2) and the workpiece (8), stripping the debris adhering to the surfaces of the grinding wheel (2) and the workpiece (8), and then the debris is taken away by the negative pressure dust suction device; Secondary dust removal: Some of the remaining debris on the workpiece (8) is frictionally conducted to the small roller (31). When the small roller (31) rotates, the brush roller (32) rotates in reverse due to friction, and the brush roller (32) cleans the small roller (31) again; Tertiary dust removal: During the grinding process, the negative pressure dust suction device in the grinding wheel cover (4) continuously works to suck away the debris generated by grinding; D. Material discharging After reaching the set duration, the moving base (3) moves backward, and the workpiece (8) disengages from the grinding wheel (2); the swing arm (30) is forced to lift high around the axis, the front claw opens, and the material is discharged by the material discharging mechanism, entering the next cycle.

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