Inverted rib selection method of automatic hem-swinging machine and automatic hem-swinging machine

Abstract

The invention relates to the technical field of sewing, in particular to an inverted rib selection method of an automatic hem sewing machine and the automatic hem sewing machine. The inverted rib selection method of the automatic lower hem machine comprises the following steps that the number and positions of rib positions to be processed on cylindrical cloth are set on a controller; the cloth is arranged on two rollers of an automatic lower swing machine in a sleeving mode, and the distance between the two rollers is adjusted till the cloth reaches the preset tensioning degree; the two rollers are driven to rotate until the cloth rotates by one circle, and in the cloth rotating process, the number information of skeleton positions on the cloth is obtained; whether the bone position moving towards the sewing point in the preset sewing direction is the bone position to be processed or not is judged, and if the bone position is the bone position to be processed, the bone position to be processed is inverted. According to the inverted rib selection method of the automatic lower hem machine and the automatic lower hem machine, the problem that an existing automatic lower hem machine cannot achieve selective inverted ribs of a multi-rib-position lower hem is solved.

Description

Technical Field

[0001] The present application relates to the field of sewing technology, and in particular to a method for selecting a reverse bone of an automatic hem machine and the automatic hem machine. Background Art

[0002] In view of the trend of clothing craftsmanship, the patchwork process of clothes has become increasingly frequent. Among them, the seam formed by the splicing between the front and back fabrics of clothes is called the bone position of the clothes, and the bone position processing at the hem of the clothes determines the final processing quality of the finished garment shape to a certain extent.

[0003] In the related art, for some high-quality garments, it is necessary to reverse the bone positions at the hem of the garment, and tilt the original bone positions in the opposite direction. However, the currently commonly used automatic hem machines can only be used to reverse the bone positions at both positions on the double-bone hem, but cannot cope with the selective reversal of the multi-bone hem, so as to achieve the reversal of one or more predetermined bone positions among the multiple bone positions. Summary of the invention

[0004] Based on this, it is necessary to provide a bone selection method for an automatic hemming machine and an automatic hemming machine to solve the problem that the existing automatic hemming machine cannot achieve selective bone hemming of multiple bone positions.

[0005] The present application provides a method for selecting a bone of an automatic hem machine, and the method for selecting a bone of an automatic hem machine comprises the following steps:

[0006] The number and position of the bone positions to be processed on the tubular fabric are set on the controller;

[0007] Putting the fabric on the two rollers of the automatic hemming machine, and adjusting the distance between the two rollers until the fabric reaches a preset tension;

[0008] Driving the two rollers to rotate until the cloth rotates one circle, and obtaining the quantity information of the bone positions on the cloth during the rotation of the cloth;

[0009] It is determined whether the bone position moving toward the sewing point along the preset sewing direction is the bone position to be processed. If the bone position is the bone position to be processed, the bone position to be processed is reversed.

[0010] In one of the embodiments, when the bone position is the bone position to be processed, the roller drives the bone position to be processed to move to the bone-cutting point and then stops rotating until the bone-cutting operation on the bone position to be processed is completed.

[0011] In one of the embodiments, the automatic hem machine includes a needle, and the needle sews the fabric at the sewing point; the bone selection method of the automatic hem machine also includes: during the bone reversing process of the bone position to be processed, controlling the needle to remain in the lower stop position.

[0012] In one of the embodiments, during the rotation of the fabric, the position of the bone is detected by a bone position sensor; wherein, along the preset sewing direction, the bone position sensor is arranged behind the sewing point, and the bone inverting point is arranged between the sewing point and the bone position sensor.

[0013] In one embodiment, the automatic bending machine includes a bone bending material pressing drive member and a bone bending telescopic drive member, and an air blow pipe is connected to the output end of the bone bending telescopic drive member; the step of bending the bone to be processed includes: controlling the output end of the bone bending material pressing drive member to press down until the output end of the bone bending material pressing drive member presses the fabric; controlling the output end of the bone bending telescopic drive member to drive the air blow pipe to move to a preset position, and controlling the air blow pipe to blow the bone to be processed for a first preset time; controlling the output end of the bone bending telescopic drive member to drive the air blow pipe to retract, and controlling the air blow pipe to blow the bone to be processed for a second preset time; stopping blowing, and controlling the output end of the bone bending material pressing drive member to retract.

[0014] In one of the embodiments, the bone position arranged along the preset sewing direction close to the sewing point is defined as the initial bone position. If the initial bone position is the bone position to be processed, after the initial bone position is boned at the bone-boosting point, the roller drives the initial bone position to move to the sewing point to start sewing; if the initial bone position does not belong to the bone position to be processed, the roller directly drives the initial bone position to move to the sewing point to start sewing.

[0015] In one of the embodiments, the bone selection method of the automatic hem machine also includes: determining whether the number of bone positions passing through the sewing point reaches the total number of bone positions, and when the number of bone positions passing through the sewing point does not reach the total number of bone positions, controlling the drum to continue rotating.

[0016] In one of the embodiments, when the number of the bone positions passing through the sewing point reaches the total number of bone positions, the sewing starting point of the fabric is controlled to move again to behind the sewing point and move the heavy line distance relative to the sewing point.

[0017] In one of the embodiments, in the step of "adjusting the distance between the two rollers until the fabric reaches a preset tension level", the distance between the two rollers is adjusted by an expansion motor.

[0018] The present application also provides an automatic swinging machine, which adopts the bone-bending selection method of the automatic swinging machine described in any one of the above embodiments to perform bone-bending operations.

[0019] Compared with the prior art, the bone selection method and automatic hem machine provided by the present application first select the number and position of the bone positions to be processed on the controller, so that during the sewing process, the automatic hem machine can automatically determine whether to perform bone reversal processing on the corresponding bone positions according to the number of bone positions passed, which effectively solves the problem of bone reversal selection. Moreover, compared with the traditional method, the present application does not need to stop during the sewing process and then manually determine whether a certain bone position needs to be reversal, thereby greatly improving the sewing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0021] Figure 1 A schematic diagram of the partial structure of an automatic hem machine according to an embodiment of the present application;

[0022] Figure 2 A flow chart of a method for selecting a bone for an automatic hem machine according to an embodiment of the present application;

[0023] Figure 3 A bone-reversing flow chart of an embodiment provided in this application;

[0024] Figure 4 A schematic diagram of sewing fabric according to an embodiment of the present application (before bone inversion);

[0025] Figure 5 A schematic diagram of sewing fabric according to an embodiment of the present application (after inverting the bone);

[0026] Figure 6 A schematic diagram of selecting a bone position to be processed according to an embodiment of the present application.

[0027] The symbols in the figure mean the following:

[0028] 100. Automatic hem machine; 110. Interlock sewing machine; 111. Sewing point; 112. Bone-turning point; 120. Roller; 130. Bone position sensor; 140. Bone-turning pressing drive member; 150. Bone-turning telescopic drive member; 151. Air blow pipe; 160. Expansion motor; 200. Cloth; 210. Zeroth bone position; 220. First bone position; 230. Second bone position; 240. Third bone position. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0030] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0032] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are in contact indirectly through an intermediate medium. Moreover, a first feature being “above”, “above”, or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below”, or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0033] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0034] In view of the trend of clothing craftsmanship, the patchwork process of clothes has become increasingly frequent. Among them, the seam formed by the splicing between the front and back fabrics of clothes is called the bone position of the clothes, and the bone position processing at the hem of the clothes determines the final processing quality of the finished garment shape to a certain extent.

[0035] In the related art, for some high-quality garments, it is necessary to reverse the bone positions at the hem of the garment, and tilt the original bone positions in the opposite direction. However, the currently commonly used automatic hem machines can only be used to reverse the bone positions at both positions on the double-bone hem, but cannot cope with the selective reversal of the multi-bone hem, so as to achieve the reversal of one or more predetermined bone positions among the multiple bone positions.

[0036] See also Figure 1-Figure 6 In order to solve the problem that the existing automatic hem machines cannot realize the selective hem inversion of multiple bone positions, the present application provides a hem inversion selection method of an automatic hem machine 100. The automatic hem machine 100 includes a stretch sewing machine 110 and two rollers 120 arranged at intervals. The two rollers 120 are respectively arranged on both sides of the stretch sewing machine 110, and are respectively driven by corresponding motors to rotate, thereby driving the cloth 200 to rotate.

[0037] like Figure 2 As shown, the bone selection method of the automatic hem machine 100 includes the following steps:

[0038] Step S1: setting the number and position of the bone positions to be processed on the tubular cloth 200 on the controller;

[0039] Step S2: The cloth 200 is placed on the two rollers 120 of the automatic hem machine 100, and the distance between the two rollers 120 is adjusted until the cloth 200 reaches a preset tension level.

[0040] Step S3: driving the two rollers 120 to rotate until the cloth 200 rotates one circle, and obtaining the quantity information of the bone positions on the cloth 200 during the rotation of the cloth 200.

[0041] Step S4: Determine whether the bone position moving toward the sewing point 111 along the preset sewing direction is the bone position to be processed. If the bone position is the bone position to be processed, perform bone reversal on the bone position to be processed.

[0042] In step S1, the distance between the two rollers 120 can be adjusted by the expansion motor 160, that is, any one or both of the two rollers 120 can be connected to the expansion motor 160, so as to achieve translation under the drive of the expansion motor 160, so as to tighten the fabric 200 and prevent the fabric 200 from being twisted and affecting the quality after sewing. Among them, the expansion signal of the expansion motor 160 can be detected by a sensor to see if it is abnormal. If the expansion signal is normal, it means that the expansion is successfully completed and the next step can be performed. If the expansion signal is abnormal, it needs to be repaired and expanded again.

[0043] It is understandable that the present application selects the number and position of the bone positions to be processed on the controller first, so that during the sewing process, the automatic hem machine 100 can automatically determine whether to perform bone-reversing processing on the corresponding bone positions according to the number of bone positions passed, which effectively solves the problem of bone-reversing selection. Moreover, compared with the traditional method, the present application does not need to stop during the sewing process and then manually determine whether a certain bone position needs to be reversed, thereby greatly improving the sewing efficiency.

[0044] It should be noted that the preset sewing direction in this embodiment is as follows: Figure 4 and Figure 5 Of course, it can also be set to clockwise according to actual needs.

[0045] It should also be noted that the automatic hem machine 100 also includes a needle (not shown), which is arranged on the interlock sewing machine 110 and is used to sew the fabric 200 at the sewing point 111, that is, the sewing point 111 is the sewing position of the needle on the interlock sewing machine 110.

[0046] For ease of explanation, this embodiment defines that after step S3, the bone position disposed near the sewing point 111 along the preset sewing direction is the initial bone position, and the bone position disposed near the sewing point 111 in the reverse preset sewing direction is the final bone position. Figure 4 For example, the cloth 200 shown has four bone positions, and the four bone positions are defined as the zero bone position 210, the first bone position 220, the second bone position 230 and the third bone position 240 from the initial bone position to the final bone position, and the initial orientation of the four bone positions is in the clockwise direction. Figure 6 As shown, if the controller selects to process the 0th bone position and the 2nd bone position on the fabric, since the 0th bone position 210 (initial bone position) is the first bone position to be judged for bone inversion, the 0th bone position 210 corresponds to the 0th bone position on the controller, and the 2nd bone position 230 corresponds to the 2nd bone position on the controller, thereby implementing bone inversion processing on the 0th bone position 210 and the 2nd bone position 230, while not performing bone inversion processing on the 1st bone position 220 and the 3rd bone position 240. Figure 5As shown, after the zeroth bone position 210 and the second bone position 230 are reversed, the bone position direction changes from the original clockwise direction to the counterclockwise direction.

[0047] In one embodiment, if Figure 2 As shown, when the bone position is a bone position to be processed, the roller 120 drives the bone position to be processed to move to the bone-cutting point 112 and then stops rotating until the bone-cutting operation of the bone position to be processed is completed. In this way, it can be avoided that the roller 120 drives the cloth 200 to move during the bone-cutting process, thereby affecting the bone-cutting effect.

[0048] Specifically, if Figure 1 and Figure 3 As shown, the automatic hem machine 100 also includes a bone pressing driving member 140 and a bone pressing telescopic driving member 150, both of which are arranged on the side of the interlock sewing machine 110, and an air blow pipe 151 is connected to the output end of the bone pressing telescopic driving member 150. Among them, the step of performing bone pressing on the bone position to be processed includes: controlling the output end of the bone pressing driving member 140 to press down until the output end of the bone pressing driving member 140 presses the fabric 200; controlling the output end of the bone pressing telescopic driving member 150 to drive the air blow pipe 151 to move to a preset position, and controlling the air blow pipe 151 to blow the bone position to be processed for the first preset time T1; controlling the output end of the bone pressing telescopic driving member 150 to drive the air blow pipe 151 to retreat, and controlling the air blow pipe 151 to blow the bone position to be processed for the second preset time T2; stopping blowing, and controlling the output end of the bone pressing driving member 140 to retract. It is easy to understand that after the bone position to be reversed moves to the reverse point 112, the reverse action begins. The reverse pressing driving member 140 first starts to press down to press the fabric 200 to prevent the fabric 200 from being blown off when blowing during the reverse action, thereby reducing the quality of the garment. Afterwards, the reverse telescopic driving member 150 extends out to allow the nozzle of the air blowing pipe 151 to blow air at the dead angle of the side seam fold, so that it can be reversed to the other side under the push of air pressure. Then, the reverse telescopic driving member 150 slowly retreats, and the air blowing pipe 151 keeps blowing air at this time, and the bone position is blown to the other side by the push of air pressure, thereby achieving automatic reverse action.

[0049] Specifically, the bone pressing driving member 140 and the bone telescopic driving member 150 can both be configured as any one of a rotary cylinder, a stepping motor and a servo motor.

[0050] In order to facilitate the determination of the starting point of sewing of the needle on the fabric 200, in one embodiment, the initial bone position can be used as the starting point of sewing of the fabric 200 at the sewing point 111. In this way, after the fabric 200 is stretched and rotated to arrange the material, it is first determined whether the initial bone position is the bone position to be processed. If the initial bone position is the bone position to be processed, the initial bone position is reversed at the reverse bone point 112, and the roller 120 drives the initial bone position to move to the sewing point 111 to start sewing. If the initial bone position is not a bone position to be processed, the roller 120 directly drives the initial bone position to move to the sewing point 111 to start sewing, and the rotation control of the roller 120 is simpler.

[0051] Of course, in other embodiments, other positions between the initial bone position and the final bone position on the cloth 200 may also be used as the sewing starting point of the cloth 200, thereby ensuring that the initial bone position can be reliably sewn.

[0052] Furthermore, when processing other bone positions to be processed except the initial bone position, since the machine needle has already started sewing, in order to ensure the reliability of sewing other bone positions to be processed, in one embodiment, during the bone-turning process of the bone position to be processed, the machine needle can be controlled to remain at the lower stop position. The lower stop position is the lowest point where the needle tip of the machine needle stops after piercing the fabric 200. At this time, the machine needle is in close contact with the fabric 200, which can fix the position of the fabric 200 to prevent displacement, and can also reduce the risk of misalignment of the stitches when restarting.

[0053] Among them, during the rotation of the cloth 200, the position of the bones can be detected by the bone position sensor 130 to ensure that during the sewing process, the position and number of the bones of the cloth 200 are detected in real time, thereby accurately locating the position of the cloth 200 during the sewing process, so that each bone to be processed can be smoothly reversed, thereby improving the reliability of sewing.

[0054] Furthermore, along the preset sewing direction, the bone position sensor 130 is arranged behind the sewing point 111, and the bone-turning point 112 is arranged between the sewing point 111 and the bone position sensor 130. That is, when the fabric 200 rotates along the preset sewing direction, the bone position on the fabric 200 usually passes through the bone-turning point 112 and the sewing point 111 in sequence. In this way, the bone position to be processed can be sewn and fixed at the sewing point 111 after the bone-turning at the bone-turning point 112, thereby avoiding the bone position from reversing in direction and improving the reliability of the bone-turning.

[0055] Specifically, the distance from the bone-setting point 112 to the bone position sensor 130 may be defined as D1, and the distance from the sewing point 111 to the bone position sensor 130 may be defined as D2, wherein D1<D2.

[0056] In one embodiment, if Figure 2 As shown, the bone selection method of the automatic hem machine 100 also includes:

[0057] S5: Determine whether the number of bone positions passing through the sewing point 111 reaches the total number of bone positions. When the number of bone positions passing through the sewing point 111 does not reach the total number of bone positions, control the drum 120 to continue rotating.

[0058] Through the setting of step S5, it can be ensured that each bone position is sewn.

[0059] Furthermore, when the number of bone positions passing through the sewing point 111 reaches the total number of bone positions, the sewing start point of the fabric 200 is controlled to move to the sewing point 111 again and move the overlap distance relative to the sewing point 111. In this way, in the sewing trajectory of the fabric 200, there is an overlap between the start point and the end point, thereby effectively improving the sewing strength of the fabric 200.

[0060] The present application also provides an automatic swing machine 100, which adopts the bone-turning selection method of the automatic swing machine 100 of any one of the above embodiments to perform bone-turning operation.

[0061] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0062] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A method for selecting a bone for an automatic hemming machine, characterized in that: The following steps are involved: Setting the number and positions of bone positions to be processed on the tubular cloth (200) on the controller; The cloth (200) is sleeved onto the two rollers (120) of the automatic hemming machine, and the distance between the two rollers (120) is adjusted until the cloth (200) reaches a preset tension level; driving the two rollers (120) to rotate until the cloth (200) rotates one circle, and obtaining information on the number of bone positions on the cloth (200) during the rotation of the cloth (200); It is determined whether the bone position moving toward the sewing point (111) along the preset sewing direction is the bone position to be processed; if the bone position is the bone position to be processed, the bone position to be processed is reversed.

2. The method for selecting the inverted bone of the automatic hem machine according to claim 1, characterized in that: When the bone position is the bone position to be processed, the roller (120) drives the bone position to be processed to move to the bone-cutting point (112) and then stops rotating until the bone-cutting operation on the bone position to be processed is completed.

3. The method for selecting the inverted bone of the automatic hem machine according to claim 2, characterized in that: The automatic hem machine comprises a needle, and the needle sews the cloth (200) at the sewing point (111); The bone selection method of the automatic hem machine also includes: During the bone reversing process of the bone position to be processed, the machine needle is controlled to remain in the lower needle stop position.

4. The method for selecting the inverted bone of the automatic hem machine according to claim 2, characterized in that: During the rotation of the cloth (200), the position of the bone is detected by a bone position sensor (130); Wherein, along the preset sewing direction, the bone position sensor (130) is arranged behind the sewing point (111), and the bone inversion point (112) is arranged between the sewing point (111) and the bone position sensor (130).

5. The method for selecting the inverted bone of the automatic hem machine according to claim 2, characterized in that: The automatic hemming machine comprises a bone pressing driving component (140) and a bone telescopic driving component (150), and an air blowing pipe (151) is connected to the output end of the bone telescopic driving component (150); The step of performing bone reversing on the bone position to be processed comprises: Controlling the output end of the bone pressing driving member (140) to be pressed downward until the output end of the bone pressing driving member (140) presses the cloth (200); Controlling the output end of the bone-reversing telescopic driving member (150) to drive the air blowing pipe (151) to move to a preset position, and controlling the air blowing pipe (151) to blow air to the bone position to be processed for a first preset time; Controlling the output end of the bone-reversing telescopic driving member (150) to drive the air blowing pipe (151) to retract, and controlling the air blowing pipe (151) to blow air to the bone position to be processed for a second preset time; The blowing is stopped, and the output end of the bone pressing driving member (140) is controlled to retract.

6. The method for selecting the inverted bone of the automatic hem machine according to claim 2, characterized in that: The bone position arranged near the sewing point (111) along the preset sewing direction is defined as an initial bone position. If the initial bone position is the bone position to be processed, after the initial bone position is reversed at the reversed bone point (112), the roller (120) drives the initial bone position to move to the sewing point (111) to start sewing; If the initial bone position does not belong to the bone position to be processed, the roller (120) directly drives the initial bone position to move to the sewing point (111) to start sewing.

7. The method for selecting the inverted bone of the automatic hem machine according to claim 1, characterized in that: The bone selection method of the automatic hem machine also includes: It is determined whether the number of bone positions passing through the sewing point (111) reaches the total number of bone positions, and when the number of bone positions passing through the sewing point (111) does not reach the total number of bone positions, the roller (120) is controlled to continue rotating.

8. The method for selecting the inverted bone of the automatic hem machine according to claim 7, characterized in that: When the number of bone positions passing through the sewing point (111) reaches the total number of bone positions, the sewing start point of the cloth (200) is controlled to move again behind the sewing point (111) and move the heavy line distance relative to the sewing point (111).

9. The method for selecting the inverted bone of the automatic hem machine according to claim 1, characterized in that: In the step of "adjusting the distance between the two rollers (120) until the cloth (200) reaches a preset tension level", the distance between the two rollers (120) is adjusted by an expansion motor (160).

10. An automatic hemming machine, characterized in that: The bone-cutting operation is performed by using the bone-cutting selection method of the automatic hem machine as described in any one of claims 1 to 9.

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