CN111531421A

CN111531421A - Novel drawing roller back grinding device

Info

Publication number: CN111531421A
Application number: CN202010424328.1A
Authority: CN
Inventors: 程立新
Original assignee: Sichuan Renshou Golden Goose Textile Co ltd
Current assignee: Sichuan Renshou Golden Goose Textile Co ltd
Priority date: 2020-05-19
Filing date: 2020-05-19
Publication date: 2020-08-14

Abstract

The invention discloses a novel drawing leather roller regrinding device which comprises a leather roller regrinding machine, a drawing leather roller and a regrinding auxiliary part, wherein the drawing leather roller is fixed through the regrinding auxiliary part arranged on the leather roller regrinding machine, so that the leather roller regrinding machine can drive the drawing leather roller to rotate together and grind the drawing leather roller through a grinding wheel on the leather roller regrinding machine, the slip rate and the eccentricity of the drawing leather roller during regrinding can be reduced through the regrinding auxiliary part, and the regrinding efficiency of the drawing leather roller is improved. The drawing leather roller is fixed through the top disc, and the movable section of the top disc is provided with the adjusting device, so that a leather roller core positioned in the top disc can be clamped in a range formed by the adjusting device fixing blocks, the position of the drawing leather roller is further fixed, and the problems that a worker needs to repeatedly position the drawing leather roller due to jumping in a high-speed rotating regrinding process, the polishing quality is reduced, and the eccentric phenomenon occurs are solved.

Description

Novel drawing roller back grinding device

Technical Field

The invention relates to the technical field of back grinding of leather rollers, in particular to a novel drawing leather roller back grinding device.

Background

The leather roller is continuously used for a period of time, under long-term repeated bearing, uneven grooves appear on the surface, so that the common leather roller needs to be ground back (0.2 mm is ground off each time) after being used for one month, so that the eccentric leather roller is reduced, and the roundness of the leather roller is recovered.

Generally, a double-thimble clamping mode is adopted for the drawing leather roller to grind back the drawing leather roller, namely two concave thimbles are adopted to prop against two end faces of a leather roller core, but the requirement on the concave thimbles is extremely high in the condition, namely:

(1) the hole conical surfaces at the centers of two ends of the leather roller core are required to have no jump to the rotating center of the leather roller core;

(2) the jumping quantity of the conical surface of the central hole of the leather roller core is 0 when the double thimbles clamp the leather roller core;

(3) the coaxiality of the axial direction of the core of the leather roller and the axial direction of the thimble of the leather roller grinding machine 1 needs to be ensured;

but the leather roller is at the operation process that actually goes back to grind, it is very difficult to accomplish above-mentioned several points, because the mode of holding additional of two thimbles, the precision requirement to the thimble itself is high, the amount of jump is little, but when the work of leather roller mill, do not have special device to stabilize it, the influence that the amount of jump brought to drawing leather roller grinding can't be got rid of promptly, secondly the precision requirement to leather roller core 2 self centre bore is also high, if there is slight damage or there is a little debris to influence centre gripping precision in the centre bore, finally, in the course of working of thimble and leather roller core, the two machining precision must have certain difference more or less, then must make the leather roller produce the error accumulation in the grinding in-process, the eccentric value exceeds standard promptly. And the core head and the thimble head of the leather roller are easy to wear, so that the leather roller slips when being reground, the rotation of the leather roller becomes slow, the grinding quality becomes poor, and the drawing leather roller can not be used for producing yarns.

Therefore, in order to solve the problems of large eccentric amount and back-grinding slippage of the drawing leather roller during back-grinding, a new drawing leather roller back-grinding device needs to be provided.

Disclosure of Invention

The invention aims to: in order to overcome the defects, the novel drawing leather roller back-grinding device reduces the eccentricity ratio of the drawing leather roller in the back-grinding process and the back-grinding slip ratio of the drawing leather roller.

In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a novel drawing leather roller regrinding device, includes leather roller machine, drawing leather roller and regrinding the auxiliary member, the drawing leather roller is fixed through the regrinding auxiliary member that sets up on the leather roller machine to make the leather roller machine can drive the drawing leather roller and rotate together and grind it through the emery wheel on the leather roller machine and grind, can reduce its slippage rate and the eccentricity of drawing leather roller when regrinding through regrinding the auxiliary member, improve its efficiency of regrinding.

Further, the skin drawing roller includes the skin roller core and sets up the axle sleeve on skin roller core surface, still is equipped with nut and adapter sleeve on the skin roller core, nut and adapter sleeve are two, and the adapter sleeve cup joints at skin roller core outer wall, and sets up respectively and fixes at the axle sleeve both ends, and two nuts are fixed respectively and are kept away from the one end of axle sleeve at the adapter sleeve, and the nut is used for the position of fixed adapter sleeve.

Furthermore, the back grinding auxiliary part comprises two top discs, wherein the top discs are hollow cylindrical, and a leather roller core is placed in each top disc; one end of the top disc is provided with a threaded section so as to be connected with the leather roller grinding machine, the other end of the top disc is connected with the drawing leather roller, and the side wall of the top disc is provided with an opening; one end of the top disc, which is contacted with the drawing leather roller, is a movable section, and an adjusting device is arranged in the movable section.

Further, the movable section is the solid cavity that has thickness, and the cavity is inside to be equipped with 4 through-holes respectively the equidistance, all is connected with adjusting device in every through-hole, and the through-hole is located 0 °, 90 °, 180 and 270 positions of a circumference respectively, and its inner wall is equipped with the screw thread to with adjusting device thread tightening.

Furthermore, the adjusting device comprises a screw and a fixed block fixed with the screw, the fixed block is positioned in an area enclosed by the inner wall of the movable section, the fixed block and the roller core in the top disc are positioned in the same space, and the range enclosed by the four fixed blocks is the position through which the roller core can pass; the screw rod is sleeved with the through hole, and the other end of the screw rod, which is not fixed with the fixed block, is positioned at the outer wall of the movable end.

Furthermore, the back grinding auxiliary part also comprises a linkage part arranged on the head, the linkage part comprises a fixed rod fixedly arranged on a belt pulley of the head of the leather roller grinding machine close to each top plate and a driving part fixed on the fixed rod, one end of the driving part is fixed with the fixed rod, the other end of the driving part is fixedly connected on a fastening sleeve of the core of the leather roller, the tail part of one end of the driving part fixed with the fastening sleeve is in a hook shape, and a through hole matched with the hook shape is arranged on the outer wall of the fastening sleeve.

Due to the adoption of the scheme, the invention has the beneficial effects that: the invention solves the defects of the prior art, provides a novel drawing roller back-grinding device, and has the advantages that:

(1) the drawing leather roller is fixed through the top disc, and the movable section of the top disc is provided with the adjusting device, so that a leather roller core positioned in the top disc can be clamped in a range formed by the adjusting device fixing blocks, the position of the drawing leather roller is further fixed, and the problems that a worker needs to repeatedly position the drawing leather roller due to jumping in a high-speed rotating regrinding process, the polishing quality is reduced, and the eccentric phenomenon occurs are solved.

(2) The top disc is provided with the adjusting device, so that the top disc can fix drawing leather rollers with different diameters, the machining precision of the top disc and a leather roller core during production is reduced, namely the machining difficulty is reduced, the top disc can adapt to different drawing leather rollers, the universality of the top disc is improved, and the back grinding efficiency is improved.

(3) The drawing roller is provided with the linkage piece between the leather roller grinding machine and the drawing roller, and the friction force between the top disc and the drawing roller can be increased due to the driving and the pulling force of the linkage piece, so that the drawing roller can keep rotating synchronously with the head of the leather roller grinding machine, and the problems that the drawing roller slips, so that the rotation of the drawing roller is slow and the back grinding quality is influenced are solved.

(4) According to the invention, the side wall of the top disc is provided with the opening, so that a worker can observe the placement condition of the leather roller core while the back grinding operation of the drawing leather roller is not influenced, and once the leather roller core is inclined, the grinding of the grinding wheel can be stopped in time and readjusted.

Drawings

FIG. 1 is a sectional view of the regrinding device of the present invention in connection with a drawing roller.

Fig. 2 is an enlarged view of the connection of the driver to the through hole in fig. 1.

FIG. 3 is a sectional view of the movable section and the adjusting device of the present invention, wherein (a) is a sectional view of the maximum diameter of the fixed core and (b) is a sectional view of the minimum diameter of the fixed core.

Fig. 4 is a cross-sectional view of the active segment of the present invention without the adjustment means attached.

Reference numerals: 1-grinding roller machine, 2-roller core, 3-shaft sleeve, 4-nut, 5-fastening sleeve, 51-perforation, 6-top disk, 61-opening, 62-movable section, 63-through hole, 7-screw, 8-fixed block, 9-fixed rod, 91-driving piece.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Examples

As shown in fig. 1-4, a novel drawing roller regrinding device comprises a roller mill 1, a drawing roller and a regrinding auxiliary, wherein the model of the roller mill 1 is A802 AG. The drawing leather roller is fixed through the back grinding auxiliary part arranged on the leather roller grinding machine 1, so that the leather roller grinding machine 1 can drive the drawing leather roller to rotate together and grind the drawing leather roller through the grinding wheel on the leather roller grinding machine 1, the slip rate and the eccentricity of the drawing leather roller can be reduced through the back grinding auxiliary part when the drawing leather roller is ground back, and the back grinding efficiency is improved.

Specifically, the leather drawing roller comprises a leather roller core 2 and a shaft sleeve 3 arranged on the surface of the leather roller core 2, namely the leather roller grinding machine 1 can drive the leather roller to rotate together, and then the shaft sleeve 3 rotating together on the surface of the leather roller is ground by using a grinding wheel. Wherein, in order to guarantee that axle sleeve 3 can not slide because of shifting appearing in grinding work on leather roller core 2, still be equipped with nut 4 and adapter sleeve 5 on leather roller core 2, nut 4 and adapter sleeve 5 are two, and adapter sleeve 5 cup joints at leather roller core 2 outer wall, and sets up respectively and fixes at axle sleeve 3 both ends, and two nuts 4 are fixed respectively in the one end that axle sleeve 3 was kept away from to adapter sleeve 5, and nut 4 is used for fixed adapter sleeve 5's position. So, the setting of adapter sleeve 5 can also avoid axle sleeve 3 because direct and rigid nut 4 contact when avoiding axle sleeve 3 to shift, its lateral wall can be rubbed by nut 4 in the work to the impaired inhomogeneous, the condition that leads to the yarn finished product poor appears in the edge.

The regrinding auxiliary part comprises two top discs 6, and the top discs 6 are hollow cylinders, so that the inside of the top discs can be used for placing the belt roller cores 2. One end of the top disc 6 is provided with a thread section to be in threaded connection with the head of the leather roller grinding machine 1, the other end of the top disc is connected with the drawing leather roller, and the side wall of the top disc is provided with an opening 61. The one end of top dish 6 and drawing leather roller contact is activity section 62, is equipped with adjusting device in the activity section 62, and diameter size through the adjustable activity section 62 port of adjusting device makes the top dish 6 can place and fix the leather roller core 2 of different diameters size so, makes leather roller core 2 can be by stable card extremely between two top dishes 6 to reduce beating of leather roller core 2 when grinding.

Specifically, the movable section 62 is a solid cavity with a thickness, 4 through holes 63 are respectively arranged in the cavity at equal intervals, an adjusting device is connected in each through hole 63, the through holes 63 are respectively located at 0 degree, 90 degrees, 180 degrees and 270 degrees of a circumference, and threads are arranged on the inner wall of each through hole to be fixed with the adjusting device in a threaded manner. The adjusting device comprises a screw 7 and a fixing block 8, the fixing block 8 and the screw 7 are integrally formed, the fixing block 8 is located in an area enclosed by the inner wall of the movable section 62, namely, the fixing block and the belt roller core 2 in the top disc 6 are located in the same space, and the range enclosed by the four fixing blocks 8 is the position through which the belt roller core 2 can pass. The screw 7 is sleeved with the through hole 63, and the other end, which is not fixed with the fixing block 8, of the screw 7 is located on the outer wall of the movable section 62, so that the screw 7 can be conveniently adjusted by a worker. It is worth to be noted that the fixing block 8 is in a square block shape, so that no matter what the radian of the outer wall of the skin roller core 2 is, one surface of the fixing block 8 facing the outer wall of the skin roller core 2 is always attached to the outer wall of the skin roller core, and the four fixing blocks 8 which are arranged at equal intervals are adopted, namely in the directions of 0 degree, 90 degrees, 180 degrees and 270 degrees of the circumference, so that the skin roller core 2 can be stably positioned in the range enclosed by the fixing blocks 8, and the skin roller core can not be skewed.

Further, the regrinding auxiliary part further comprises a linkage part arranged on the head, the linkage part comprises a fixed rod 9 fixedly arranged on a belt pulley of the head of the belt grinding roller machine 1, close to each top plate 6, and a driving part 91 fixed on the fixed rod 9, one end of the driving part 91 is fixed with the fixed rod 9, the other end of the driving part is fixedly connected to the fastening sleeve 5 of the belt roller core 2, the tail part of the driving part 91 and the tail part of one end, fixed to the fastening sleeve 5, of the driving part 91 are hook-shaped, a through hole 51 matched with the hook-shaped driving part 91 is formed in the outer wall of the fastening sleeve 5, and the driving part 91 is. Therefore, when the head of the leather roller grinding machine 1 drives the top disc 6 to rotate, the friction force between the top disc 6 and the drawing leather roller can be increased due to the driving and the pulling force of the linkage part, so that the drawing leather roller can keep rotating synchronously with the head, the drawing leather roller is prevented from slipping, the rotation of the drawing leather roller is slow, and the grinding quality is influenced.

Specifically speaking, when regrinding, operating personnel fixes two crown plates 6 and the locomotive of mill leather roller machine 1 earlier, adjusting screw 7 for the inner wall that fixed block 8 is close to the expansion end, and it is the biggest to get the regional area that fixed block 8 constitutes, will wait to regrind in the crown plate 6 with the leather roller core 2 of drawing leather roller, and adjust the locomotive, make the terminal surface of crown plate 6 and the nut 4 of drawing leather roller closely lean on, in order to block the drawing leather roller between crown plate 6. Readjustment screw 7 for the leather roller core 2 that is located 6 insides of holding-up plate can be blocked in the within range that each fixed block 8 is constituteed, thereby further fixes the position of drawing leather roller, avoids it at high-speed pivoted back to grind the in-process, appears beating, leads to the staff to need repeatedly fix a position drawing leather roller, thereby reduces the quality of polishing and the eccentric phenomenon appears. After fixing the top plate 6 and the drawing leather roller, fixing the driving piece 91 one end of the linkage piece with the fastening sleeve 5 on the drawing leather roller, so that the headstock starts to rotate, and when the back grinding operation is carried out, the linkage piece can further drive the drawing leather roller to rotate, thereby avoiding the phenomena of skidding and slow rotation of the drawing leather roller during the back grinding operation.

It is worth to say that, opening 61 on the lateral wall of top dish 6 is the face that the emery wheel was located dorsad, so can avoid when going back to grind, remaining piece falls into top dish 6 through opening 61 in, leads to being stained with the piece on the skin roller core 2, influences its later stage's work and whetting down the operation. Further, because the opening 61 is formed in the top disc 6, when grinding is conducted, a worker can observe the placement condition of the leather roller core 2, and once the leather roller core 2 is inclined, grinding of the grinding wheel can be stopped in time and readjusted.

For better illustration, the regrinding action of the roller regrinding device in this example on the drawing roller is compared with the present example by using 1 set of comparative examples, and the deviation of the two ends, the eccentricity, the surface finish and the uniformity of the finished yarn after spinning on the drawing roller in the examples and comparative examples are respectively measured. The deviation and the eccentricity of the end are measured by a scale, and the uniformity of the finished yarn is measured by a Uster evenness tester.

Comparative example 1: and (3) carrying out back grinding on the drawing roller by adopting a mode that two concave thimble respectively clamps two ends of the drawing roller.

The test results are shown in the following table:

	end offset (mm)	Eccentricity (mm)	Surface finish	Evenness CV value (%)	Spectrogram
						Examples	0.01	0.01	Good taste	2.21	Without mechanical waves
Comparative example 1	0.03	0.06	Good taste	2.74	With mechanical waves

The eccentric grinding standard of a common leather roller is between 0.02 and 0.04mm, and the CV value standard of a spun finished product through an Uster evenness tester is between 2.2 and 2.4 percent, so that according to the detection, the deviation of the end head of the drawing leather roller ground by the double-thimble clamping device can meet the grinding requirement, but the eccentric amount seriously exceeds the standard, and the finished product yarn manufactured after the back-ground drawing leather roller is used is tested to be dry through the Uster evenness tester, the CV value is found to be seriously exceeded, and obvious mechanical waves are displayed in a wave spectrum, namely the drawing leather roller does not accord with the yarn manufacturing standard and cannot be used on a machine. The deviation amount of the end of the drawing leather roller subjected to regrinding is small, the eccentricity is also between the grinding standards, and the finished yarn prepared after the regrinding drawing leather roller is used on a machine is subjected to evenness testing by an Uster evenness tester, the CV value of the finished yarn also reaches the standard, and no mechanical wave is generated in a wave spectrum diagram, namely the drawing leather roller meets the yarn making standard and can be used on the machine.

Parts not described in the above modes can be realized by adopting or referring to the prior art.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a novel drawing roller regrinding device which characterized in that: including buffing roller machine (1), drawing leather roller and back mill auxiliary member, the drawing leather roller is fixed through the back mill auxiliary member that sets up on buffing roller machine (1) to make buffing roller machine (1) can drive the drawing leather roller and rotate together and grind it through the emery wheel on buffing roller machine (1) and grind, can reduce its slippage rate and eccentricity when the back mill of drawing leather roller through back mill auxiliary member, improve it and return and grind efficiency.

2. The novel drawing roller back-grinding device as claimed in claim 1, characterized in that: skin drawing roller includes skin roller core (2) and sets up axle sleeve (3) on skin roller core (2) surface, still is equipped with nut (4) and adapter sleeve (5) on skin roller core (3), nut (4) and adapter sleeve (5) are two, and adapter sleeve (5) cup joint at skin roller core (2) outer wall, and sets up respectively and fix axle sleeve (3) both ends, and the one end of keeping away from axle sleeve (3) in adapter sleeve (5) is fixed respectively in two nuts (4), and nut (4) are used for the position of fixed adapter sleeve (5).

3. The novel drawing roller back-grinding device as claimed in claim 2, characterized in that: the regrinding auxiliary part comprises two top discs (6), the top discs (6) are hollow cylinders, and the inside of each top disc is used for placing a belt roller core (2); one end of the top disc (6) is provided with a threaded section to be connected with the leather roller grinding machine (1), the other end of the top disc is connected with the drawing leather roller, and the side wall of the top disc is provided with an opening (61); one end of the top disc (6) contacting with the drawing roller is a movable section (62), and an adjusting device is arranged in the movable section (62).

4. The novel drawing roller back-grinding device as claimed in claim 3, characterized in that: activity section (62) are for having the solid cavity of thickness, and the cavity is inside to be equipped with 4 through-holes (63) of equidistance respectively, all is connected with adjusting device in every through-hole (63), and through-hole (63) are located 0 of a circumference respectively, 90, 180 and 270 positions, and its inner wall is equipped with the screw thread to with adjusting device thread tightening.

5. The novel drawing roller back-grinding device as claimed in claim 4, characterized in that: the adjusting device comprises a screw rod (7) and fixing blocks (8) fixed with the screw rod (7), the fixing blocks (8) are positioned in an area defined by the inner wall of the movable section (62) and positioned in the same space with the roller core (2) in the top disc (6), and the range defined by the four fixing blocks (8) is the position through which the roller core (2) can pass; the screw rod (7) is sleeved with the through hole (63), and the other end of the screw rod (7), which is not fixed with the fixed block (8), is positioned on the outer wall of the movable section (62).

6. The novel drawing roller back-grinding device as claimed in claim 5, characterized in that: the back grinding auxiliary part further comprises a linkage part arranged on the head, the linkage part comprises a fixing rod (9) fixedly arranged on a belt pulley of the head of the leather roller grinding machine close to each top plate and a driving part (91) fixed on the fixing rod (9), one end of the driving part (91) is fixed with the fixing rod (9), the other end of the driving part is fixedly connected onto a fastening sleeve (5) of the leather roller core (2), the tail part of one end of the driving part (91) fixed with the fastening sleeve (5) is hook-shaped, and a through hole (51) matched with the driving part (91) in the hook-shaped manner is formed in the outer wall of the fastening sleeve (5).