Space adjusting method for bobbin yarn conveying device of bobbin winder based on guide plate cutting

Abstract

The invention discloses a bobbin winder bobbin yarn conveying device spacing adjusting method based on guide plate cutting, and belongs to the technical field of textile equipment transformation. According to the method, on the premise that any part is not replaced or newly added, only one-time precise cutting is carried out on an existing middle guide plate (the width is removed by 1-10 mm), and then the whole support assembly can horizontally move towards the single spindle side, so that the installation distance between a convex disc and a support is reduced by 0.5-1.2 mm at a time. After cutting, a standard process of measuring, cutting and debugging is established, the cutting flatness is smaller than or equal to 0.1 mm, and the distance error after debugging is smaller than or equal to 0.5 mm. The transformation only needs 4 hours per machine, the cost of a single machine is less than or equal to 50 yuan, but the allowable abrasion loss of the convex disc is improved from 0 mm to 1 mm, the pipe feeding success rate is greater than or equal to 99.9%, the service life of the convex disc is prolonged by greater than or equal to 30%, and shutdown is reduced by greater than or equal to 30 hours per month. According to the invention, the stubborn diseases of'improper pipe feeding and convex disc clamping 'are radically treated by the reverse thinking of'material reduction processing', and the method has the outstanding advantages of zero structural change, low cost, high precision and capability of large-scale copying.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textile equipment modification, in particular to a bobbin transport device spacing adjustment method based on guide plate cutting. BACKGROUND

[0002] The automatic bobbin transport device generally adopts the convex disc-support clamping conveying mode. Due to the redundancy of early design, the installation spacing between the support and the convex disc is generally large (about 2.5 mm). When the edge of the convex disc is normally worn by 1 mm after long-term operation, it is easy to cause "pipe not in place" or even "card convex disc" failure, which causes a single machine to stop for more than 30 hours per month. The traditional solutions include: replacing the convex disc or support as a whole, the cost of a single machine is more than 800 yuan, and it needs to be stopped for 6 hours; installing special-shaped gaskets or adapter plates, introducing external purchased parts, which complicates the structure and brings the risk of secondary failure; re-machining the installation hole on the machine tool, which damages the main machine frame and makes it difficult to ensure the precision.

[0003] The above-mentioned solutions belong to the "additive" or "replacement" thinking, which is high in cost, long in cycle and difficult to promote. Therefore, there is an urgent need for a zero-structure modification, low-cost, high-precision spacing adjustment method to eliminate the root cause of failure.

[0004] It can be seen that the above-mentioned existing bobbin transport device spacing adjustment method has the inconvenience and defects in the method and use, and needs to be further improved. In order to solve the problems of the bobbin transport device spacing adjustment method based on guide plate cutting, relevant manufacturers have made every effort to find a solution, but for a long time no suitable design has been developed, and the general method has no suitable solution to solve the above-mentioned problems, which is obviously the problem that the relevant industry wants to solve.

[0005] In view of the defects of the above-mentioned existing bobbin transport device spacing adjustment method, the present application is based on the rich practical experience and professional knowledge in designing and manufacturing such products for many years, and cooperates with the application of theory, actively researches and innovates, in order to create a new bobbin transport device spacing adjustment method based on guide plate cutting, which can improve the general existing bobbin transport device spacing adjustment method and make it more practical. After continuous research, design, and repeated trial and improvement, the present application with practical value is finally created. SUMMARY

[0006] The main purpose of the present application is to overcome the defects of high cost, long downtime, complex structure and other defects caused by the "replace parts - add pad" idea in the prior art, and provide a new distance adjustment method for the yarn transport device of the winding machine based on the guide plate cutting. The technical problem to be solved is to permanently eliminate the congenital defect of "excessive distance" by one-time subtractive machining without increasing or replacing any parts, thereby reducing the modification cost of a single machine to ≤50 yuan, shortening the downtime to ≤4h, being more suitable for practical use, and having industrial utilization value.

[0007] Another purpose of the present application is to provide a distance adjustment method for the yarn transport device of the winding machine based on the guide plate cutting, and the technical problem to be solved is to ensure the success rate of tube feeding ≥99.9% when the convex disc wear reaches 1mm, thereby reducing the monthly average downtime by ≥30h, and being more suitable for practical use.

[0008] Still another purpose of the present application is to provide a distance adjustment method for the yarn transport device of the winding machine based on the guide plate cutting, and the technical problem to be solved is to form a reproducible standardized process of "measurement - cutting - debugging", the cutting flatness is ≤0.1mm, and the spacing error after debugging is ≤0.5mm, thereby being more suitable for practical use.

[0009] Still another purpose of the present application is to provide a distance adjustment method for the yarn transport device of the winding machine based on the guide plate cutting, and the technical problem to be solved is to completely avoid the risk of secondary failure by retaining all the frame, transmission and electrical control structure of the original machine, realize the change from "after replacement" to "prevention", and be more suitable for practical use.

[0010] The purposes of the present application and the technical problems thereof are realized by adopting the following technical solutions:

[0011] According to the distance adjustment method for the yarn transport device of the winding machine based on the guide plate cutting, the cutout with a width of d=0.5mm-1.2mm is cut on the one-time bearing surface of the intermediate guide plate, the support is integrally translated to the single spindle side by a distance d along the cutout and then fastened again, so that the installation distance between the support and the convex disc is reduced by 0.5mm-1.2mm, and no additional parts are added or replaced during the whole process.

[0012] The purposes of the present application and the technical problems thereof can also be further realized by adopting the following technical measures:

[0013] In the foregoing method, the cutout is formed by wire cutting, laser cutting or precision milling, and the roughness of the cutting surface is Ra≤0.1 mm; the remaining thickness of the intermediate guide plate is ≥70% of the original thickness; the single-sided gap between the bracket and the convex disc after adjustment is 0.3 mm±0.2 mm; the single-unit modification time is ≤4 h, and the single-unit modification cost is ≤50 yuan; and the method is suitable for an automatic winder adopting a convex disc-bracket clamping and conveying mode.

[0014] The object and the technical problem of the present application are also achieved by the following technical solutions:

[0015] According to the winder tube yarn conveying device formed by the above method, the one-time bearing surface of the intermediate guide plate has a cutout with a width of d=0.5-1.2 mm, the bracket is translated along the cutout to the single-spindle side and fastened to the rack, the installation spacing is reduced by 0.5-1.2 mm compared with before the modification, and the device does not increase or replace any parts.

[0016] The object and the technical problem of the present application are also achieved by the following technical solutions:

[0017] In the foregoing device, the roughness of the cutting surface is Ra≤0.1 mm; the remaining thickness of the intermediate guide plate is ≥70% of the original thickness; the single-sided gap between the bracket and the convex disc is 0.3 mm±0.2 mm; the success rate of tube conveying is ≥99.9% when the maximum allowable wear of the convex disc is 1 mm; the monthly average downtime is reduced by ≥30 h, and the service life of the convex disc is prolonged by ≥30%.

[0018] The present application has obvious advantages and beneficial effects compared with the prior art. As can be seen from the above technical solutions, in order to achieve the foregoing object, the main technical content of the present application is as follows:

[0019] The present application provides a winder tube yarn conveying device spacing adjustment method based on guide plate cutting, characterized by comprising the following steps:

[0020] a) measuring the installation spacing L0 between the original bracket and the convex disc;

[0021] b) cutting a cutout with a width of d on the one-time bearing surface of the intermediate guide plate, so that the cutout depth penetrates the bearing surface but the back reinforcement is retained, and d=0.5-1.2 mm;

[0022] c) translating the bracket as a whole along the cutout to the single-spindle side by a distance of d and then re-fastening, so as to reduce the installation spacing to L1=L0-d;

[0023] d) adjusting to the state that the convex disc can still pass without jamming when the maximum wear is 1 mm;

[0024] Wherein, the entire modification process does not increase or replace any parts.

[0025] Preferably, the cut is formed by wire cutting, laser cutting or precision milling, and the roughness of the cutting surface is Ra≤0.1mm.

[0026] Preferably, the remaining thickness of the intermediate guide plate is ≥70% of the original thickness.

[0027] Preferably, the single-sided gap between the support and the convex disc is 0.3mm±0.2mm after adjustment.

[0028] Preferably, the single-unit modification time is ≤4h, and the single-unit modification cost is ≤50yuan.

[0029] The application also provides a bobbin transport device for a winder, characterized in that the device has a cut with a width of d=0.5mm-1.2mm on the one-time bearing surface of the intermediate guide plate, the support is translated by a distance d along the cut to the single-spindle side and is refastened to the frame, so that the installation gap between the support and the convex disc is reduced by 0.5mm-1.2mm compared to before modification; and the device does not increase or replace any parts.

[0030] Preferably, the roughness of the cutting surface of the cut is Ra≤0.1mm.

[0031] Preferably, the remaining thickness of the intermediate guide plate is ≥70% of the original thickness.

[0032] Preferably, the single-sided gap between the support and the convex disc is 0.3mm±0.2mm, and the convex disc can still pass without jamming when the maximum wear is 1mm.

[0033] Preferably, the device is suitable for a slot-type automatic winder, and the slot-type automatic winder includes an automatic winder that uses a convex disc and a support to clamp and convey, and the device is any one of the AC338, RM or Autoconer series of automatic winders.

[0034] As known from the above, the application discloses a method for adjusting the gap of a bobbin transport device for a winder by precisely cutting the intermediate guide plate once to translate the support by 0.5-1.2mm to the single-spindle side, thereby permanently reducing the installation gap; the method does not increase any parts or make any major changes to the main body, and only takes 4h and costs ≤50yuan to modify a single unit, but increases the allowable wear of the convex disc from 0mm to 1mm, increases the success rate of bobbin feeding to ≥99.9%, prolongs the service life of the convex disc by ≥30%, and reduces the monthly downtime by ≥30h.

[0035] By means of the above technical solution, the method for adjusting the gap of the bobbin transport device for the winder based on guide plate cutting has at least the following advantages:

[0036] (1) zero structural modification: no gaskets are added, and no parts are replaced, completely avoiding secondary failures;

[0037] (2)Cost is extremely low: single consumables + labor ≤ 50 yuan, which is 1 / 16 of the traditional scheme;

[0038] (3) Cycle is extremely short: standardized "measurement - cutting - debugging" process, single machine downtime ≤ 4h, which can be batch copied;

[0039] (4) High precision: cutting flatness ≤ 0.1mm, spacing error after debugging ≤ 0.5mm, good conveying stability;

[0040] (5) Eliminate failure: allow convex plate wear 1mm without jam, monthly average failure downtime reduction ≥ 30h;

[0041] (6) Preventive maintenance: change "after replacement" to "before prevention", greatly reduce operation and maintenance intervention.

[0042] In summary, the special winding machine tube yarn conveying device spacing adjustment method based on guide plate cutting can eliminate the congenital spacing defect by "subtractive machining" reverse thinking at one time, and has the advantages of low cost, high precision, fast replication and long service life. It has many advantages and practical value, and has not been published or used in similar methods, and is indeed innovative. It has great improvement in method or function, and has great progress in technology, and produces good and practical effect, and has more functions than existing schemes, so it is more suitable for practical use, and has wide industrial utilization value, and is a novel, progressive and practical new design.

[0043] The above description is only a summary of the technical scheme of the present application. In order to more clearly understand the technical means of the present application, and to implement the content of the description, the following will be described in detail with the preferred embodiments of the present application and the accompanying drawings.

[0044] The specific method and structure of the present application are given in detail by the following embodiments and drawings. BRIEF DESCRIPTION OF DRAWINGS

[0045] Figure 1 : winding machine tube yarn conveying device spacing adjustment method based on guide plate cutting schematic diagram;

[0046] Figure 2 : winding machine tube yarn conveying device spacing adjustment structure cross-sectional view based on guide plate cutting.

[0047] In the drawings:

[0048] 1. Reference locking point, 2. Knife plate linkage, 3. Original spacing, 4. Cutout, 5. Bearing surface, 6. Reinforcing rib, L0 is the installation spacing between the original support and the convex plate, L1 is the installation spacing between the support and the convex plate after adjustment, d is the distance of the cutout. DETAILED DESCRIPTION

[0049] To further clarify the technical means and effects taken by the present application to achieve the predetermined inventive objectives, the following describes in detail the specific implementation, method, steps, structure, features and effects of the bobbin transport device spacing adjustment method based on guide plate cutting according to the present application, with reference to the accompanying drawings and preferred embodiments.

[0050] Please refer to Figure 1 , Figure 2 The bobbin transport device spacing adjustment method based on guide plate cutting according to the preferred embodiment of the present application mainly includes the following steps:

[0051] The bobbin transport device spacing adjustment method based on guide plate cutting according to the preferred embodiment of the present application mainly includes the following steps:

[0052] S101. Measure the original installation spacing

[0053] Use a digital height gauge or plug gauge to measure the single-sided installation spacing L0 between the bracket and the convex disc in the stationary state of the equipment, and record the current maximum wear Δ of the convex disc (accuracy 0.01 mm).

[0054] S102. Determine the cutting amount d

[0055] Calculate the width to be cut according to the formula d = L0 - L1, where the target spacing L1 is 1.5 mm ± 0.1 mm; if Δ ≥ 0.4 mm, then d is increased by 0.1 mm to ensure that there is still a 0.3 mm safety gap when the wear is 1 mm.

[0056] S103. One-time precision cutting

[0057] Use a 0.1 mm molybdenum wire cutting machine to cut the width d along the middle guide plate one-time bearing surface, with a depth that penetrates but leaves a 2 mm reinforcing rib on the back; cutting parameters: pulse width 20 μs, current 2 A, wire speed 3 m / min, to ensure that the cutting surface roughness Ra ≤ 0.1 mm.

[0058] S104. Overall translation and fastening

[0059] Loosen the 4 × M6 installation bolts of the bracket, and use the positioning pin to translate the bracket as a whole to the single spindle side by a distance d. After re-measuring the spacing, fasten it diagonally with a torque of 12 N·m, and add a lock washer.

[0060] S105. Throughput debugging

[0061] Manually spin the disc to make the convex disc run back and forth 10 times under the simulated working condition of a maximum wear of 1 mm, and confirm that there is no jamming. Then run the disc empty for 30 minutes, and use a laser displacement sensor to monitor the bracket amplitude, which is ≤ 0.05 mm.

[0062] S106. Production verification

[0063] Put the normal yarn into 1000 times of feeding test, count the success rate of feeding ≥99.9%, record the time of transformation 3.2h, cost 43yuan(molybdenum wire 3yuan+ labor 40yuan).

[0064] S107. Standardized output

[0065] Write the above parameters into the "distance adjustment operation instruction", form a replicable, batched "measurement-cutting-adjustment" standardized process.

[0066] Example 1:

[0067] AC338 automatic winder, spindle number 60, running for 3 years, convex plate edge wear 0.35mm, monthly average "feeding not in place" downtime 28h.

[0068] S101 Measurement: the original installation distance L0=2.63mm(maximum) is measured by 0-25mm digital plug gauge. S102 Determine the cutting amount: take the target distance L1=1.50mm, then d=1.13mm; because Δ=0.35mm<0.4mm, no additional compensation is needed.

[0069] S103 One-time precision cutting:

[0070] Equipment: DK7625 slow wire cutting machine, molybdenum wire φ0.1mm;

[0071] Parameters: pulse width 20μs, current 2A, wire speed 3m / min, deionized water conductivity 15μS / cm; cutting path: once through along the middle guide plate bearing surface, leaving 2mm reinforcing rib on the back; the actual cutting surface roughness Ra=0.08mm, width d=1.13mm±0.01mm.

[0072] S104 Overall translation and fastening: loosen the support 4×M6 bolts, use φ6mm positioning pin to guide translation 1.13mm, re-measure the distance 1.50mm±0.02mm, torque 12N·m diagonal fastening, add spring washer to prevent loosening.

[0073] S105 Throughness adjustment:

[0074] Manual turning 10 times, simulate convex plate wear 1mm(paste 0.65mm copper foil), no jamming, no abnormal noise; running for 30min, the laser displacement sensor measures the support amplitude 0.03mm, less than the allowable value 0.05mm.

[0075] S106 Production verification:

[0076] Continuous feeding of Ne 40 polyester cotton yarn at a speed of 1 200 m / min, statistics of 1 000 times of pipe feeding, 0 times of failure, success rate of 100%; record the time of modification of 3.2h, cost of 43 yuan (molybdenum wire 3 yuan + labor 40 yuan). S107 standardized output:

[0077] The above parameters are solidified into the "AC338 spacing adjustment operation instruction book", numbered SOP-AC338-001, applicable to the remaining 59 spindles in the same batch.

[0078] Effect comparison:

[0079] Before modification: convex disc allowed wear 0mm, monthly average downtime 28h, convex disc replacement cycle 9 months. After modification: convex disc allowed wear 1mm, continuous operation for 6 months without related downtime, expected convex disc life extended to 14 months, annual downtime saving ≥30h per machine.

[0080] Example 2

[0081] RM type winding machine batch cutting positioning fixture: a total of 72 RM type machines, requiring spacing adjustment to be completed within 3 days, and the cutting amount is consistent.

[0082] Design "one-time clamping multiple pieces" cutting fixture: 72 positioning grooves are provided on the aluminum alloy base plate, the groove distance is consistent with the mounting hole distance of the machine guide plate, and a 0.02mm precision positioning pin is added to the reference surface. The fixture can clamp 6 middle guide plates at a time, and after cutting is completed, it is uniformly translated to 1.00mm.

[0083] Implementation results:

[0084] Cutting parameters are the same as in Example 1, single batch cutting time is 45min, total cutting working hours of 72 pieces is 6h; 10 pieces are selected for inspection, the cutting width is 1.00mm±0.02mm, Ra≤0.08mm;

[0085] After on-site installation, the spacing error of the whole line is ≤0.3mm, the pipe feeding success rate is 99.95%, meeting the 3-day delivery requirement.

[0086] Example 3

[0087] In order to verify the relationship between the cutting amount and the allowed wear amount, cutting tests were carried out according to d=0.5mm, 0.8mm, 1.2mm.

[0088] Machine type: AC338 automatic winding machine (3 machines, numbers A / B / C, each with 20 spindles, a total of 60 spindles). Yarn: Ne 40 polyester cotton, speed 1 200 m / min.

[0089] Environment: temperature (25±2)℃, humidity (60±5)%RH.

[0090] Measuring tools: digital plug gauge (0.01mm), laser displacement sensor, online visual counting system.

[0091] S101 Measure the original interval L0=2.63mm according to the method of Example 1.

[0092] S102 Calculate and precisely cut according to the grouping, the cutting equipment and parameters are the same as Example 1.

[0093] S103 After translation, fastening and debugging, paste copper foils with different thicknesses on the outside of each group of convex discs to simulate 0.6mm, 0.9mm and 1.0mm wear amounts.

[0094] S104 Run continuously for 8h, record the number of times and failure times of the pipe by the online visual system; at the same time, monitor the support amplitude by the laser displacement sensor.

[0095] S105 Track continuously for 30 days, count the actual wear amount and replacement number of the convex disc, and calculate the life extension ratio.

[0096] The results are as follows:

[0097] Cutting amount d (mm) Allowable wear amount (mm) Pipe feeding success rate (%) Convex disc life extension (%) 0.5 0.6 99.2 15 0.8 0.9 99.7 25 1.2 1.0 99.9 30

[0098] It can be seen that d≥1.0mm can meet the target of "wear 1mm without failure", and considering the rigidity allowance, it is recommended that the value of d is 0.8-1.2mm.

[0099] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with the preferred embodiment, it is not intended to limit the present application. Any skilled person in the art can make some changes or modifications to the above disclosed methods and technical contents without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A method for adjusting the distance between the tube yarn transport devices of a guide plate cutting-based winder, characterized in that, The method comprises the following steps: a) measuring the installation distance L0 between the original support and the convex disc; b) cutting a cut with a width of d on the disposable bearing surface of the intermediate guide plate, the depth of the cut penetrates the bearing surface but the back reinforcing rib is reserved, and d=0.5mm-1.2mm; c) translating the support as a whole along the cut to the single spindle side by a distance d and then fastening again to reduce the installation distance to L1=L0-d; d) adjusting to the condition that the convex disc can pass without blocking when the maximum wear is 1mm; wherein the whole modification process does not increase or replace any part.

2. The godet transport distance adjustment method for a guide plate cutting based bobbin winder according to claim 1, characterized in that: The cut is formed by wire cutting, laser cutting or precision milling, and the roughness of the cutting surface is Ra≤0.1mm.

3. A godet spacing adjustment method for a godet-based slitter-winder tube transport arrangement according to claim 1 or 2, characterized in that: The remaining thickness of the intermediate guide plate after cutting is ≥70% of the original thickness.

4. The godet transport distance adjustment method for a guide plate cutting based bobbin winder according to claim 1, characterized in that: The single-sided gap between the support and the convex disc after adjustment is 0.3mm±0.2mm.

5. The godet tube transport distance adjustment method based on the guide plate cutting of claim 1, wherein: The single modification time is ≤4h, and the single modification cost is ≤50yuan.

6. A bobbin transport device of a bobbin winder characterized by comprising: The intermediate guide plate of the device has a cut with a width of d=0.5mm-1.2mm on the disposable bearing surface, the support is translated as a whole along the cut to the single spindle side by a distance d and then fastened to the frame, so that the installation distance between the support and the convex disc is reduced by 0.5mm-1.2mm compared with before modification; and the device does not increase or replace any part.

7. The bobbin transport of claim 6, characterized in that: The roughness of the cutting surface of the cut is Ra≤0.1mm.

8. The bobbin transport device of claim 6 or 7, characterized in that: The remaining thickness of the intermediate guide plate is ≥70% of the original thickness.

9. The bobbin transport of claim 6, characterized in that: The single-sided gap between the support and the convex disc is 0.3mm±0.2mm, and the convex disc can pass without blocking when the maximum wear is 1mm.

10. The bobbin transport of claim 6, wherein: The device is suitable for a slot type automatic winder, and the slot type automatic winder comprises an automatic winder using a convex disc and support clamping and conveying mode.

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