Folding and width-correcting device for interlock hem of clothing

Abstract

The utility model discloses a folding width-correcting device for an interlock hem of a garment, which realizes synchronous reverse movement of an upper width-correcting roller and a lower width-correcting roller through meshing transmission of a forward and reverse rotation driving gear and racks on two sides of a first motor, and the mechanical action simulates symmetrical kneading of an artificial finger. And correcting the hem width deviation of the fabric in real time in dynamic adjustment. Specifically, when a first motor rotates in the forward direction or the reverse direction, a gear drives a first rack and a second rack on the left side and the right side to synchronously reciprocate along a linear sliding rail, an upper width correcting roller and a lower width correcting roller are forced to move front and back, the upper width correcting roller is driven by an air cylinder to ascend and descend, and two-way clamping and flexible rubbing of cloth are formed; the tension on the two sides can be dynamically balanced in the fabric advancing process, the hem width deviation caused by fabric elasticity difference, uneven thickness or conveying speed fluctuation is effectively eliminated, stable control over the hem width tolerance is ensured, and the strict requirement for sewing precision of high-grade clothes is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to manufacturing and processing equipment technical field especially relates to a kind of folding material width rectifying device for clothing underflap. BACKGROUND

[0002] In the field of garment processing, underflap processing procedure is one of key links of garment production, and its quality directly affects the beauty and durability of garment. Traditional underflap processing relies on manual operation or semi-automatic equipment, which has problems such as low efficiency, high labor intensity and uneven folded edge of cloth. With the development of automation technology, automatic underflap processing equipment gradually appears in the market, such as patent number 202222270156.4 "a kind of underflap automatic underflap machine", which realizes automatic conveying and folding of cloth through mechanical structure, significantly improving processing efficiency. However, the following problems still exist in the prior art for dynamic rectification of cloth width:

[0003] 1. Insufficient rectification accuracy: some equipment uses single-sided width rectifying roller to adjust, which easily leads to cloth deviation or non-parallel upper and lower width rectifying roller axes, causing problems such as skewed and wrinkled cloth folding edge;

[0004] 2. Limited adaptability: traditional width rectifying device mostly uses manual adjustment or independent driving structure, which is difficult to quickly adapt to cloth of different thickness or elasticity, and the adjustment process is complicated and prone to human error;

[0005] 3. Poor synchronization: the separate driving structure of upper and lower width rectifying rollers may cause motion asynchronization, affecting the stability of cloth tension, especially causing equipment jam or cloth damage at high speed.

[0006] In view of the above problems, although the existing patent technology has proposed an automatic improvement scheme, there is still room for optimization in terms of motion synchronization, compactness and adjustment accuracy of width rectifying mechanism. For example, the driving mode of existing width rectifying roller assembly cannot ensure that the upper and lower roller bodies always maintain accurate parallel alignment during adjustment, resulting in insufficient uniformity of cloth passing through the gap. Therefore, an improved device is needed that can realize high-precision synchronous width rectification, adapt to diversified cloth characteristics and be convenient to operate, to further improve the quality and efficiency of garment underflap processing. It can be seen that the existing technology needs to be improved and improved. UTILITY MODEL CONTENT

[0007] In view of the above shortcomings of the prior art, the purpose of the utility model is to provide a kind of folding material width rectifying device for clothing underflap, to solve the problem of poor synchronous width rectification accuracy in the prior art.

[0008] In order to achieve the above object, the utility model adopts the following technical scheme: a kind of folding material width rectifying device for garment hem, including support base component, it is characterized in that, still including lower width rectifying roller component, motor assembly and upper width rectifying roller component being arranged on the support base component:

[0009] The motor assembly includes a first motor and a gear, the first motor is vertically arranged, and the output end is rotatably installed with the gear;The lower width rectifying roller component includes a first rack, a first linear slide rail and a lower width rectifying roller, the first rack is fixed on the first linear slide rail, and the lower width rectifying roller is rotatably arranged on the first linear slide rail;The upper width rectifying roller component includes a second rack, a second linear slide rail, an upper width rectifying roller, a mounting plate and a cylinder, the second linear slide rail is fixed with the second rack and the mounting plate, and the cylinder is vertically fixed on the mounting plate, and the output end of the cylinder is provided with the upper width rectifying roller;

[0010] The left and right sides of the gear are engaged with the first rack and the second rack respectively, the upper width rectifying roller is arranged in parallel with the lower width rectifying roller, and the upper width rectifying roller is located directly above the lower width rectifying roller, and the fabric passes through the gap between the upper width rectifying roller and the lower width rectifying roller.

[0011] In an embodiment of the utility model, the lower width rectifying roller component further includes a second motor and a transmission assembly, the first linear slide rail is fixed with the second motor, and the second motor is drivingly connected with the lower width rectifying roller through the transmission assembly.

[0012] The beneficial effects of the above embodiment are that: in the width rectifying process, the second motor can actively drive the lower roller to rotate, which is synchronized with the fabric conveying speed, and eliminates the fabric accumulation or slipping phenomenon caused by insufficient friction of traditional passive roller;Active driving mode is especially suitable for continuous processing of high-elasticity or smooth-surface fabric, ensures that the width rectifying and conveying actions are carried out cooperatively, and improves the folding edge flatness and processing efficiency

[0013] In an embodiment of the utility model, the transmission assembly includes a first synchronous wheel, a synchronous belt and a second synchronous wheel, the first synchronous wheel is fixed on the second motor, the second synchronous wheel is fixed on one end of the lower width rectifying roller, and the first synchronous wheel and the second synchronous wheel are drivingly connected through the synchronous belt.

[0014] The beneficial effects of the above embodiment are that: the transmission assembly mainly composed of synchronous belt can effectively avoid the gap error of transmission, and ensure that the rotation speed of the lower roller is strictly synchronized with the main conveying system;It can still maintain stability at high speed, and reduce the folding edge width fluctuation caused by transmission slipping.

[0015] In an embodiment of the utility model, still include shaft shoulder screw, compression spring and installation support, the output of cylinder is connected with installation support through shaft shoulder screw, the compression spring is compressed in the axle hole groove of shaft shoulder screw, the upper width rectifying roller can be rotatably set up on the installation support.

[0016] The beneficial effects of the above embodiment are that when the cylinder applies pressure, the compression spring can absorb mechanical impact and dynamically balance the clamping force, preventing rigid extrusion damage caused by overpressure of the cylinder or instantaneous thickening of the cloth; at the same time, the elastic deformation characteristics of the spring enable the upper roller to adapt to slight thickness changes, maintain the uniformity of the width rectifying gap, and avoid edge creases caused by local stress concentration.

[0017] In an embodiment of the utility model, a first bearing is further included, and the two ends of the upper width rectifying roller are arranged on the installation support through the first bearing respectively.

[0018] The beneficial effects of the above embodiment are that the first bearing support structure enables the upper roller to rotate freely when clamping the cloth, avoiding scratches or pulling on the surface of the cloth caused by sliding friction, especially suitable for processing delicate fabrics such as silk and chiffon, while reducing driving energy consumption and prolonging the service life of the cylinder.

[0019] In an embodiment of the utility model, a second bearing is further included, and the gear is installed on the first motor through the second bearing.

[0020] The beneficial effects of the above embodiment are that the bearing support can effectively disperse the radial load in the gear transmission process, reduce the wear of the motor shaft, and reduce the abnormal meshing gap of the rack caused by shaft eccentricity; improve the stability and precision of gear transmission, ensure the synchronization error of the upward and downward width rectifying rollers, and meet the millimeter-level tolerance requirements of high-grade clothing for edge width.

[0021] In an embodiment of the utility model, the surface of the lower width rectifying roller is distributed with spiral grooves.

[0022] The beneficial effects of the above embodiment are that the spiral grooves can guide the cloth to evenly spread in the width rectifying direction, avoiding edge distortion caused by local adhesion of traditional smooth rollers; in addition, the micro air layer formed by the grooves can reduce static adsorption, especially suitable for continuous high-speed processing of chemical fiber fabrics, improving the width rectifying stability and yield.

[0023] As described above, the utility model discloses a device for the width of the folded fabric of the garment's under hem, and has the following beneficial effects: through the meshing transmission of the first motor forward and reverse drive gear and double-sided rack, the synchronous reverse movement of the upper width regulation roller and lower width regulation roller is realized, and the mechanical action simulates the symmetrical rubbing of artificial fingers, and the width deviation of the folded fabric is corrected in real time in dynamic adjustment. Specifically, when the first motor rotates forward or reversely, the gear drives the first rack and the second rack on the left and right sides to move synchronously along the linear slide rail, forcing the upper width regulation roller and the lower width regulation roller to move back and forth, and the lifting of the upper width regulation roller is driven by the air cylinder, forming bidirectional clamping and flexible rubbing of the fabric. This symmetrical width regulation mechanism can dynamically balance the tension on both sides during the movement of the fabric, effectively eliminating the width deviation of the folded edge caused by the difference in fabric elasticity, uneven thickness or fluctuation in conveying speed, ensuring stable control of the width tolerance of the folded edge, and meeting the stringent requirements of high-grade garments on sewing accuracy. Compared with the traditional single-roller adjustment or double-motor independent drive scheme, the device uses the rigid meshing of the gear and the rack and the precise guidance of the linear slide rail to force the upper and lower rollers to keep strict parallel alignment, avoiding the problems of folded edge wrinkles or skew caused by axis deviation, and simplifying the transmission structure and reducing the influence of mechanical clearance on the width regulation accuracy. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can obtain other drawings according to these drawings without creating any inventive work.

[0025] Figure 1 The structure diagram of the device for the width of the folded fabric of the garment's under hem provided by the present application is shown in the figure.

[0026] Figure 2 The exploded view of the device for the width of the folded fabric of the garment's under hem provided by the present application is shown in the figure.

[0027] Element number explanation

[0028] 1. support base assembly;2. lower width regulation roller assembly;21. first rack;22. first linear slide rail;23. lower width regulation roller;24. second motor;25 first synchronous wheel;26. synchronous belt;27. second synchronous wheel;3. motor assembly;31. first motor;32. gear;33. second bearing;4. upper width regulation roller assembly;41. second rack;42. second linear slide rail;43. upper width regulation roller;44. mounting plate;45. air cylinder;46. shaft shoulder screw;47. compression spring;48. first bearing. DETAILED DESCRIPTION

[0029] The utility model provides a kind of for clothing under hem fall's folding material width rectifying device, to make the purpose, technical scheme and effect of the utility model more clear, definite, the following referring to drawing and taking example to make further detailed description to the utility model.

[0030] In the description of the utility model, it needs to be understood that the orientation or positional relationship indicated by terms such as "up and down" and "left and right" is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and cannot be understood as a limitation on the utility model; in addition, terms such as "mounting" and "connecting" should be broadly understood, and those skilled in the art can understand the specific meaning of the above terms in the utility model according to the specific circumstances.

[0031] Please refer to Figure 1 And Figure 2 The utility model provides a kind of for clothing under hem fall's folding material width rectifying device, including support base component 1, still including setting in the support base component 1 on lower width rectifying roller assembly 2, motor assembly 3 and upper width rectifying roller assembly 4:

[0032] The motor assembly 3 includes a first motor 31 and a gear 32, the first motor 31 is vertically arranged, and the output end is rotatably installed with the gear 32;The lower width rectifying roller assembly 2 includes a first rack 21, a first linear slide rail 22 and a lower width rectifying roller 23, the first linear slide rail 22 is fixed with the first rack 21, and the lower width rectifying roller 23 is rotatably arranged on the first linear slide rail 22;The upper width rectifying roller assembly 4 includes a second rack 41, a second linear slide rail 42, an upper width rectifying roller 43, a mounting plate 44 and a pneumatic cylinder 45, the second linear slide rail 42 is fixed with the second rack 41 and the mounting plate 44, the pneumatic cylinder 45 is vertically fixed on the mounting plate 44, and the output end of the pneumatic cylinder 45 is provided with the upper width rectifying roller 43;Further, the pneumatic cylinder 45 is connected with the mounting bracket through the shaft shoulder screw 46, the shaft hole groove of the shaft shoulder screw 46 is compressed with the compression spring 47, and the mounting bracket is rotatably provided with the upper width rectifying roller 43.When the pneumatic cylinder 45 exerts pressure, the compression spring 47 can absorb mechanical impact and dynamically balance clamping force, to prevent rigid extrusion damage caused by overpressure of the pneumatic cylinder 45 or instantaneous thickening of the cloth;At the same time, the elastic deformation characteristics of the spring enable the upper roller to adapt to slight thickness changes (such as the joint), maintain the uniformity of the width rectifying gap, and avoid edge creases caused by local stress concentration.

[0033] Optionally, the mounting bracket is provided with a power drive device for driving the upper width rectifying roller 43 to rotate, according to different processing fabrics, the power drive device can realize the autorotation of the upper width rectifying roller 43, and optimize the activity form of the upper width rectifying roller 43.

[0034] The left and right sides of the gear 32 are respectively engaged with the first rack 21 and the second rack 41, the upper width regulating roller 43 is arranged in parallel with the lower width regulating roller 23, and the upper width regulating roller 43 is located directly above the lower width regulating roller 23, and the cloth passes through the gap between the upper width regulating roller 43 and the lower width regulating roller 23.

[0035] The lower width regulating roller assembly 2 further comprises a second motor 24 and a transmission assembly, the first linear slide rail 22 is fixed with the second motor 24, and the second motor 24 is in transmission connection with the lower width regulating roller 23 through the transmission assembly. In the width regulating process, the second motor 24 can actively drive the lower roller to rotate, which is matched with the cloth conveying speed, so as to eliminate the cloth accumulation or slipping phenomenon caused by insufficient friction of the traditional passive roller; the active driving mode is especially suitable for continuous processing of high-elasticity or smooth-surface fabric, which ensures the coordination of width regulating and conveying actions, and improves the folding edge flatness and processing efficiency.

[0036] The transmission assembly comprises a first synchronous wheel 25, a synchronous belt 26 and a second synchronous wheel 27, the first synchronous wheel 25 is fixed on the second motor 24, the second synchronous wheel 27 is fixed on one end of the lower width regulating roller 23, and the first synchronous wheel 25 and the second synchronous wheel 27 are in transmission connection through the synchronous belt 26. The surface of the lower width regulating roller 23 is distributed with spiral grooves. The spiral groove pattern can guide the cloth to uniformly extend in the width regulating direction, so as to avoid the folding edge distortion caused by local adhesion of the traditional smooth roller; in addition, the micro air flow layer formed by the grooves can reduce the electrostatic adsorption, which is especially suitable for continuous high-speed processing of chemical fiber fabric, and improves the width regulating stability and yield.

[0037] Further comprising a second bearing 33, the gear 32 is installed on the first motor 31 through the second bearing 33. The bearing support can effectively disperse the radial load in the transmission process of the gear 32, reduce the shaft wear of the motor, reduce the abnormal rack engagement gap caused by shaft eccentricity, improve the stability and precision of the gear 32 transmission, and ensure the synchronization error of the upward and downward width regulating rollers, so as to meet the millimeter-level tolerance requirement of the folding edge width of high-grade clothes.

[0038] Further comprising a first bearing 48, both ends of the upper width regulating roller 43 are arranged on the mounting bracket through the first bearing 48. The first bearing 48 support structure enables the upper roller to freely rotate when clamping the cloth, so as to avoid scratches or pilling on the surface of the cloth caused by sliding friction, which is especially suitable for processing of delicate fabrics such as silk and chiffon, while reducing the driving energy consumption and prolonging the service life of the air cylinder 45.

[0039] The folding material width correcting device for the garment hem lower skirt of the present application, through the synchronous matching of the driving lower roller with the fabric conveying speed, eliminates the shortcomings of the traditional passive roller, ensures the coordination of the width correction and conveying actions, and improves the flatness of the folded edge and the processing efficiency.

[0040] In summary, the folding material width correcting device for the garment hem lower skirt of the present application, through the meshing transmission of the first motor forward and reverse rotation driving gear and the double-sided rack, realizes the synchronous reverse movement of the upper and lower width correcting rollers, and the mechanical action simulates the symmetrical rubbing of the artificial fingers, which corrects the fabric folded edge width deviation in real time in dynamic adjustment. Specifically, when the first motor rotates forward or reversely, the gear drives the first and second racks on the left and right sides to move synchronously along the linear slide rail, forcing the upper and lower width correcting rollers to move back and forth, and combining the lifting of the upper width correcting roller driven by the cylinder, forming bidirectional clamping and flexible rubbing of the fabric. This symmetrical width correcting mechanism can dynamically balance the tension on both sides during the fabric advancing process, effectively eliminating the folded edge width deviation caused by the difference in fabric elasticity, uneven thickness or conveying speed fluctuation, ensuring the stable control of the folded edge width tolerance, and meeting the stringent requirements of high-grade garments on sewing precision. Compared with the traditional single roller adjustment or double motor independent driving scheme, the device strictly keeps the upper and lower rollers in parallel alignment through the rigid meshing of the gear and rack and the precise guidance of the linear slide rail, avoiding the problems of folded edge wrinkles or skew caused by axis deviation, while simplifying the transmission structure and reducing the influence of mechanical clearance on the width correcting precision.

[0041] In the high-speed processing scene, the synchronicity advantage of this design is particularly significant, which can adjust the roller spacing in real time following the fabric offset signal, ensure the uniform tension of the fabric when passing through the gap, and avoid defects such as thread breakage and needle skipping commonly seen in high-speed sewing. In addition, the symmetrical rubbing action of the upper and lower rollers can be adjusted adaptively according to different fabric characteristics: for elastic fabrics, the rubbing amplitude is increased to offset the rebound effect; for heavy fabrics, the clamping force is increased to maintain the flatness of the folded edge. The high linearity of the linear slide rail further improves the stability of the width correcting action, making it suitable for a variety of materials from thin silk to denim.

[0042] From the perspective of equipment integration and maintenance, the single motor driving scheme greatly simplifies the redundant components in the traditional width correction device, reduces the complexity of the equipment, and reduces the maintenance cost. The gear and rack system does not need frequent lubrication, and combined with the modular design, the troubleshooting and component replacement efficiency are improved. In addition, by linking the width correction roller displacement data with the main control system, the operator can monitor the width of the folded edge in real time and preset parameters, realize the processing mode of "one key switching" of different clothing styles, and significantly improve the flexibility level of the production line. In summary, through bionic mechanical design and efficient transmission optimization, the device solves the problems of insufficient correction accuracy, poor adaptability and high maintenance cost in traditional technology, and provides a high reliability and high compatibility solution for high-end garment manufacturing. Therefore, the utility model effectively overcomes the shortcomings of the prior art and has high industrial utilization value.

[0043] It can be understood that, for those skilled in the art, equivalent replacement or change can be made according to the technical scheme and the utility model concept of the utility model, and all these changes or replacements shall belong to the protection scope of the utility model.

Claims

1. A fabric folding and width adjustment device for the hem of garments, comprising a support base assembly, characterized in that, It also includes a lower straightening roller assembly, a motor assembly, and an upper straightening roller assembly disposed on the support base assembly: The motor assembly includes a first motor and a gear. The first motor is vertically arranged, and the gear is rotatably mounted on its output end. The lower width-correcting roller assembly includes a first rack, a first linear slide rail, and a lower width-correcting roller. The first rack is fixed on the first linear slide rail, and the lower width-correcting roller is rotatably arranged on the first linear slide rail. The upper width-correcting roller assembly includes a second rack, a second linear slide rail, an upper width-correcting roller, a mounting plate, and a cylinder. The second rack and the mounting plate are fixed on the second linear slide rail, and the cylinder is vertically fixed on the mounting plate. The upper width-correcting roller is arranged on the output end of the cylinder. The left and right sides of the gear mesh with the first rack and the second rack respectively. The upper and lower width-correcting rollers are arranged in parallel, and the upper width-correcting roller is located directly above the lower width-correcting roller. The fabric passes through the gap between the upper and lower width-correcting rollers.

2. The folding and width-correcting device for the hem of a garment according to claim 1, characterized in that, The lower straightening roller assembly also includes a second motor and a transmission assembly. The second motor is fixed on the first linear slide rail, and the second motor is connected to the lower straightening roller via the transmission assembly.

3. The folding and width-correcting device for the hem of a garment according to claim 2, characterized in that, The transmission assembly includes a first synchronous pulley, a synchronous belt, and a second synchronous pulley. The first synchronous pulley is fixed on the second motor, and the second synchronous pulley is fixed to one end of the lower straightening roller. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt.

4. The folding and width-correcting device for the hem of a garment according to claim 1, characterized in that, It also includes a shoulder screw, a compression spring, and a mounting bracket. The output end of the cylinder is connected to the mounting bracket via the shoulder screw. The compression spring is compressed in the groove of the shaft hole of the shoulder screw. The upper straightening roller is rotatably mounted on the mounting bracket.

5. The folding and width-correcting device for the hem of a garment according to claim 4, characterized in that, It also includes a first bearing, with both ends of the upper straightening roller respectively mounted on the mounting bracket via the first bearing.

6. The folding and width-correcting device for the hem of a garment according to claim 1, characterized in that, It also includes a second bearing, through which the gear is mounted on the first motor.

7. The folding and width-correcting device for the hem of a garment according to claim 1, characterized in that, The surface of the lower straightening roller is distributed with spiral grooves.

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