Looped fabric sewing apparatus and looped fabric sewing method

Abstract

The present disclosure provides a fabric loop sewing device and a fabric loop sewing method. The fabric loop sewing device comprises a fabric supporting mechanism, a hemming mechanism and a sewing mechanism; the fabric supporting mechanism comprises two spaced-apart supporting members; the hemming mechanism comprises a first hemming member and a second hemming member used in cooperation; the first hemming member has a first hemming channel, a hemming member working area and a hemming member accommodating groove, and the second hemming member has a second hemming channel; the first hemming member and the second hemming member are located between the two supporting members; and the sewing mechanism is used for sewing the hem with the main body of the fabric to form a loop. The fabric loop sewing device can automatically complete the subsequent hemming and loop preparation, greatly simplifying the process requiring personnel operation, and effectively improving the working efficiency of loop sewing.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of textiles, in particular to a fabric ring opening sewing device and a fabric ring opening sewing method. BACKGROUND

[0002] Pillowcases and other fabrics have openings. During the production of these fabrics, a ring opening sewing process is usually required. The ring opening sewing process is to first fold the opening of the fabric twice to form a hem on the edge of the fabric, and then sew the hem and the main body of the fabric to form a ring opening. In this process, the action of forming the hem is relatively complex and requires a certain flexibility, and it is difficult to accurately and efficiently complete by machine. Therefore, in the past ring opening sewing process, there are a large number of manual operation steps, and the production efficiency is extremely limited. SUMMARY

[0003] Therefore, it is necessary to provide a fabric ring opening sewing device capable of improving the working efficiency of ring opening sewing.

[0004] According to some embodiments of the present disclosure, a fabric ring opening sewing device is provided, which comprises a fabric supporting mechanism, a hemming mechanism and a sewing mechanism.

[0005] The fabric supporting mechanism comprises two spaced apart supporting members for supporting the fabric to be hemmed.

[0006] The hemming mechanism comprises a first hemming member and a second hemming member used in cooperation, and the first hemming member and the second hemming member are located between the two supporting members.

[0007] The first hemming member has a first hemming channel, a hemming member working area and a hemming member accommodating groove, the first hemming channel has openings through both sides in a second direction intersecting the first direction, and the first hemming channel is provided below in a third direction intersecting both the first direction and the second direction with the hemming member working area and the hemming member accommodating groove.

[0008] The second hemming member has a second hemming channel communicating with the first hemming channel, and the second hemming member can move between the hemming member working area and the hemming member accommodating groove, and the second hemming channel has openings through both sides in the second direction.

[0009] The sewing mechanism is arranged on the side of the first hemming member and the second hemming member in the second direction, and is used for sewing the hem of the fabric.

[0010] In some embodiments of the present disclosure, a positioning mechanism is further included, the positioning mechanism comprising a positioning drive connected to at least one of the support members, the positioning drive being configured to drive the support member to move in the first direction.

[0011] In some embodiments of the present disclosure, the fabric support mechanism further comprises at least one support drive connected to the support members, the support drive being configured to drive the support members to adjust the distance between the two support members.

[0012] In some embodiments of the present disclosure, the positioning drive and the support drive are each one, one of the support members is connected to the positioning drive, and the other support member is connected to the support drive.

[0013] In some embodiments of the present disclosure, a deviation correction mechanism is further included, the deviation correction mechanism comprising a first rotatable deviation correction wheel, a second rotatable deviation correction wheel, and a fabric position detector; the first deviation correction wheel and the second deviation correction wheel are arranged on the fabric moving path between the first folding member and one of the support members.

[0014] The fabric position detector is electrically connected to the first deviation correction wheel and the second deviation correction wheel, the first deviation correction wheel being configured to adjust the length of the fabric entering the first folding channel, and the second deviation correction wheel being configured to adjust the length of the fabric entering the second folding channel.

[0015] In some embodiments of the present disclosure, the sewing needle in the sewing mechanism is arranged on the side of the folding mechanism away from the first deviation correction wheel and the second deviation correction wheel.

[0016] In some embodiments of the present disclosure, a label placing mechanism is further included, the label placing mechanism comprising a label clamping member and a clamping drive, the label clamping member being arranged between the first folding member and one of the support members, the label clamping member being configured to clamp a label, and the clamping drive being configured to drive the label clamping member to press the label onto the folded edge of the fabric.

[0017] In some embodiments of the present disclosure, a label suction accessory is further included, the label suction accessory being arranged below the label clamping member, the label suction accessory being configured to suck the label.

[0018] In some embodiments of the present disclosure, the first folding member comprises a first limiting plate, a second limiting plate, and a third limiting plate arranged in sequence and spaced apart in the third direction, the length of the second limiting plate being shorter than the length of the first limiting plate and the length of the third limiting plate.

[0019] The first limiting plate and the second limiting plate are provided with the first folding channel, the second limiting plate and the third limiting plate are provided with the accommodating groove, and the region between the first limiting plate and the third limiting plate without the second limiting plate is provided with the folding working area.

[0020] In some embodiments of the present disclosure, the first folding member further comprises a first connecting plate, a second connecting plate and a third connecting plate arranged in sequence, the first end of the first limiting plate in the first direction and the first end of the third limiting plate in the first direction are connected through the first connecting plate, the tail end of the second limiting plate in the first direction and the tail end of the third limiting plate in the first direction are connected through the second connecting plate, and the third connecting plate is connected to the tail end of the first limiting plate in the first direction.

[0021] In some embodiments of the present disclosure, the first folding member further comprises at least one side baffle, the side baffle is arranged between the second limiting plate and the third limiting plate, and is connected to the side edge of the second limiting plate in the second direction and the side edge of the third limiting plate in the second direction.

[0022] In some embodiments of the present disclosure, the second folding member comprises a fourth limiting plate and a fifth limiting plate arranged in the third direction, the fourth limiting plate and the fifth limiting plate are arranged between the first limiting plate and the third limiting plate, and the second folding channel is arranged between the fourth limiting plate and the fifth limiting plate.

[0023] In some embodiments of the present disclosure, the second folding member further comprises a fourth connecting plate, the tail end of the fourth limiting plate in the first direction and the tail end of the fifth limiting plate in the first direction are connected through the fourth connecting plate, and the fourth connecting plate is located between the first connecting plate and the second connecting plate.

[0024] In some embodiments of the present disclosure, the folding mechanism further comprises a folding driving member for driving the second folding member to move.

[0025] In some embodiments of the present disclosure, the folding mechanism further comprises a folding rotating member for driving the first folding member and the second folding member to rotate around the second direction.

[0026] In some embodiments of the present disclosure, the folding driving member comprises a driving part, a guide part and a connecting part, the driving part is arranged on the guide part and can move along the guide part, and the driving part is connected to the second folding member through the connecting part.

[0027] The first folding member is fixedly connected to the guide component, the folding rotating member comprises a rotating shaft and an operating handle, the folding guide component is rotatably connected to the rotating shaft, and the operating handle is connected to the folding guide component.

[0028] The present disclosure also provides a fabric loop sewing method, which comprises the following steps:

[0029] The second folding member is placed in the folding member working area in the first folding member by using the fabric loop sewing device according to any one of the above embodiments.

[0030] The fabric is sleeved on the two support members, and the edge of the fabric is guided into the first folding channel and then guided from the first folding channel into the second folding channel to form a folding edge.

[0031] The fabric is moved so that the edge of the fabric continuously passes through the side opening of the first folding member and the side opening of the second folding member in a second direction, and the folding edge is sewn to the main body part of the fabric to form a loop.

[0032] The second folding member is controlled to enter the folding member containing groove, and the fabric is controlled to exit the first folding channel.

[0033] The present disclosure provides a loop sewing device, which comprises a fabric support mechanism, a folding mechanism and a sewing mechanism. The support mechanism is used to support the opening of the fabric and facilitate the translational movement of the edge of the fabric. The folding mechanism comprises a first folding channel and a second folding channel connected in series. After the fabric enters the tail end of the first folding channel, the fabric turns into the second folding channel, so that a folding edge is formed, and then the sewing mechanism sews the folding edge to form a loop. Meanwhile, the first folding member further comprises a folding member working area and a folding member containing groove. By moving the second folding member between the folding member working area and the folding member containing groove, the loop that has been sewn can be easily taken out of the second folding channel. In the process of preparing the loop by using the fabric loop sewing device, the operator only needs to put the opening of the fabric on the two support members and send the edge of the fabric into the folding mechanism, and then the subsequent folding and loop preparation can be automatically completed. This greatly simplifies the process that needs to be operated by personnel and effectively improves the work efficiency of loop sewing. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 A structural schematic diagram of a fabric loop sewing device is shown;

[0035] Figure 2 A structural schematic diagram of a fabric support mechanism in Figure 1 is shown;

[0036] Figure 3 A structural schematic diagram of a folding mechanism in Figure 1a structure diagram of the first folding member in the folding mechanism;

[0037] Figure 4 a structure diagram of the first folding member in the folding mechanism is shown; Figure 3

[0038] a structure diagram of the first folding member in the folding mechanism is shown; Figure 5 Figure 3 a structure diagram of the first folding member in the folding mechanism is shown;

[0039] Figure 6 Figure 3 a structure diagram of the first folding member in the folding mechanism is shown;

[0040] Figure 7 a structure diagram of the first folding member in the folding mechanism is shown; Figure 1

[0041] Figure 8 a structure diagram of the first folding member in the folding mechanism is shown; Figure 1

[0042] wherein, each reference sign and its meaning are as follows:

[0043] 111, first support member; 112, second support member; 113, support connecting member; 114, support driving member; 120, folding mechanism; 1201, first folding channel; 1202, folding member working area; 1203, folding member accommodating groove; 1204, second folding channel; 121, first folding member; 1211, first limiting plate; 1212, second limiting plate; 1213, third limiting plate; 1214, first connecting plate; 1215, second connecting plate; 1216, third connecting plate; 1217, side baffle; 122, second folding member; 1221, fourth limiting plate; 1222, fifth limiting plate; 1223, fourth connecting plate; 1231, driving component; 1232, guiding component; 1233, connecting component; 1241, rotating shaft; 1242, operating handle; 130, sewing mechanism; 140, alignment mechanism; 151, first deviation correcting wheel; 152, second deviation correcting wheel; 153, fabric position detector; 160, marking mechanism; 161, marking strip clamping member; 162, clamping driving member; 170, marking strip suction accessory; 200, fabric. DETAILED DESCRIPTION

[0044] In order to facilitate the understanding of the present application, the present application will be described more fully below with reference to the accompanying drawings. The preferred embodiments of the present application are shown in the drawings. However, the present application can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present application more thorough and comprehensive.

[0045] ​​​​Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. As used herein, the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0046] It will be understood that when an element or layer is referred to as being "on" or "connected to" or "coupled to" another element or layer, it can be directly on, connected or coupled to the other element or layer or intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on," "directly connected to," or "directly coupled to" another element or layer, there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present application.

[0047] Spatially relative terms, such as "beneath", "below", "lower", "under", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the exemplary term "below" can encompass both an orientation of above and below. The device can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0048] The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting thereof. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. As used herein the term "and / or" includes any and all combinations of one or more of the associated listed items.

[0049] According to one embodiment of the present application, there is provided a fabric loop turning sewing device, comprising: a fabric supporting mechanism, a turning mechanism and a sewing mechanism;

[0050] The fabric supporting mechanism comprises two spaced-apart supporting members for supporting a fabric to be turned;

[0051] The turning mechanism comprises a first turning member and a second turning member used in cooperation, both of which are located between the two supporting members;

[0052] The first turning member has a first turning channel, a turning member working area and a turning member accommodating slot, the first turning channel has openings through both sides in a second direction intersecting the first direction, the turning member working area and the turning member accommodating slot are arranged below the first turning channel in a third direction, the third direction intersects both the first direction and the second direction;

[0053] The second turning member has a second turning channel communicating with the first turning channel, the second turning member is movable between the turning member working area and the turning member accommodating slot, the second turning channel has openings through both sides in the second direction;

[0054] The sewing mechanism is arranged at the side of the first turning member and the second turning member in the second direction, for sewing the turned fabric.

[0055] The loop sewing device provided by the present disclosure comprises a fabric supporting mechanism, a hemming mechanism and a sewing mechanism. The supporting mechanism is used to open the opening of the fabric and facilitate the translational movement of the edge of the fabric. The hemming mechanism comprises a first hemming channel and a second hemming channel in communication. After the fabric enters the tail end of the first hemming channel, it turns into the second hemming channel, i.e. a hem is formed, and then the formed hem is sewn to form a loop. Meanwhile, the first hemming member further comprises a hemming member working area and a hemming member accommodating groove. By moving the second hemming member between the two, the sewn loop can be easily removed from the second hemming channel. In the process of preparing the loop using the fabric loop sewing device, the operator only needs to set the opening of the fabric on the two supporting members and feed the edge of the fabric into the hemming mechanism, and then the subsequent hemming and loop preparation can be automatically completed, greatly simplifying the process that needs to be operated by personnel and effectively improving the working efficiency of loop sewing.

[0056] Figure 1 The structure diagram of a loop sewing device of the present disclosure is shown. Referring to Figure 1 , the loop sewing device comprises a fabric supporting mechanism, a hemming mechanism 120 and a sewing mechanism 130.

[0057] The fabric supporting mechanism comprises a first supporting member 111 and a second supporting member 112, which are arranged at intervals. The first supporting member 111 and the second supporting member 112 are used together to open the fabric 200 to be hemmed. The first supporting member 111 and the second supporting member 112 can be the same or different. In this embodiment, the first supporting member 111 and the second supporting member 112 are the same. The first supporting member 111 and the second supporting member 112 are arranged on both sides of the hemming mechanism 120, so that the edge of the opened fabric 200 can enter the hemming mechanism 120 and be processed.

[0058] In some examples of this embodiment, the first supporting member 111 and the second supporting member 112 are both rotatable supporting members. The rotatable supporting member means that the supporting member can rotate around its own axis, so that the first supporting member 111 and the second supporting member 112 can rotate in place. The rotation shaft 1241 of the first supporting member 111 and the second supporting member 112 can be in the first direction. When the fabric 200 is set on the rotatable supporting member, the rotatable supporting member can drive the fabric 200 to move by rotating itself, so that the edge of the fabric 200 can be translated in the second direction through the hemming mechanism 120. Referring to Figure 1 , the first direction is the x direction in Figure 1 , the second direction is the y direction in Figure 1 , and the third direction is the z direction in Figure 1the z direction in the coordinate system. The first direction, the second direction, and the third direction are orthogonal to each other, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0059] In some examples of the embodiment, the first support 111 and the second support 112 can be cylindrical supports, so as to facilitate the first support 111 and the second support 112 to be fixed on the machine table to rotate.

[0060] Figure 2 A more specific structure diagram of the fabric support mechanism is shown. Referring to Figure 2 As shown, in some examples of the embodiment, the fabric support mechanism further comprises at least one support driving member 114. The support driving member 114 is connected to the support member, and the support driving member 114 is used to drive the support member to adjust the distance between the two support members. In the embodiment as shown in Figure 1 In the embodiment as shown, there is only one support driving member 114, and the support driving member 114 is connected to the first support 111 to drive the first support 111 to move. Referring to Figure 1 As shown, the support driving member 114 is connected to the support member through the support connecting member 113. In the Figure 1 direction as shown, the support driving member 114 can drive the first support 111 to translate in the second direction to change the distance between the first support 111 and the second support 112, so that the fabric support mechanism can be applied to fabrics 200 of various sizes.

[0061] Further, referring to Figure 2 As shown, the fabric ring car sewing device of the present disclosure further comprises an alignment mechanism 140. The alignment mechanism 140 comprises an alignment driving member, and the alignment driving member is connected to the second support 112. The alignment driving member is used to drive the second support 112 to move in the first direction. Wherein, moving in the first direction can be moving forward or moving backward in the first direction.

[0062] The alignment mechanism 140 can assist the position of the fabric 200 at the beginning of the sewing process to coincide with the position of the fabric 200 at the end of the sewing process. Specifically, for the loop edge sewing device, when the loop-shaped edge of the fabric 200 travels around the loop edge device for one round and needs to end the sewing process, the second folding member 122 needs to be moved into the folding member accommodating slot 1203 to exit the folding assistance of the fabric 200, and then the fabric 200 is controlled to exit from the second folding passage 1204, in the process, the fabric 200 is loosened. At this time, the second supporting member 112 can be controlled to reverse to pull the fabric 200 tight again, but when reversing, the fabric 200 will move a little in the first direction, at this time, the alignment mechanism 140 is controlled to drive the second supporting member 112 to move in the first direction, that is, the displacement of the fabric 200 is compensated accordingly, so that the position of the fabric 200 at the beginning of the sewing process coincides with the position of the fabric 200 at the end of the sewing process.

[0063] Figures 3-5 A more specific structure diagram of the folding mechanism 120 is shown. Referring to Figure 3 , the folding mechanism 120 includes a first folding member 121 and a second folding member 122.

[0064] Figure 4 A structure diagram of the first folding member 121 is shown. Referring to Figure 4 , the first folding member 121 has a first folding passage 1201, a folding member working area 1202, and a folding member accommodating slot 1203, the first folding passage 1201 has openings through both sides in the second direction intersecting the first direction, and the folding member working area 1202 and the folding member accommodating slot 1203 are arranged below the first folding passage 1201 in the third direction.

[0065] Referring to Figure 4 , in some examples of this embodiment, the first folding member 121 includes a first limiting plate 1211, a second limiting plate 1212, and a third limiting plate 1213 arranged in sequence in the third direction, the length of the second limiting plate 1212 is shorter than the length of the first limiting plate 1211 and the length of the third limiting plate 1213; the first folding passage 1201 is arranged between the first limiting plate 1211 and the second limiting plate 1212, the accommodating slot is arranged between the second limiting plate 1212 and the third limiting plate 1213, and the folding working area is arranged between the first limiting plate 1211 and the third limiting plate 1213 without the second limiting plate 1212.

[0066] Referring to Figure 4As shown, in some examples of this embodiment, the first folding member 121 further comprises a first connecting plate 1214 and a second connecting plate 1215 which are spaced apart, the first end of the first limiting plate 1211 in the first direction and the first end of the third limiting plate 1213 in the first direction are connected by the first connecting plate 1214, and the second end of the second limiting plate 1212 in the first direction and the second end of the third limiting plate 1213 in the first direction are connected by the second connecting plate 1215.

[0067] Referring to Figure 4 As shown, in some examples of this embodiment, the first folding member 121 further comprises a third connecting plate 1216 which is spaced apart from the second connecting plate 1215, the third connecting plate 1216 is arranged on the side of the second connecting plate 1215 away from the first connecting plate 1214, and the third connecting plate 1216 is connected to the second end of the first limiting plate 1211 in the first direction. The third connecting plate 1216 and the second connecting plate 1215 have a fabric entry passage for the fabric 200 to enter, and the fabric entry passage is in communication with the first folding passage 1201. By further arranging the fabric entry passage, the fabric 200 can enter the first folding passage 1201 more smoothly.

[0068] Referring to Figure 4 As shown, in some examples of this embodiment, the first folding member 121 further comprises at least one side baffle 1217 which is arranged between the second limiting plate 1212 and the third limiting plate 1213 and connected to the side edge of the second limiting plate 1212 in the second direction and the side edge of the third limiting plate 1213 in the second direction. The side baffle 1217 is used to block the fabric 200 from entering the folding member accommodating groove 1203. Optionally, the side baffle 1217 is perpendicular to the second direction.

[0069] Referring to Figure 5 As shown, the second folding member 122 has a second folding passage 1204 which is in communication with the first folding passage 1201, the second folding member 122 can move between the folding member working area 1202 and the folding member accommodating groove 1203, and the second folding passage 1204 has openings through both sides in the second direction.

[0070] The second folding member 122 is located between the first limiting plate 1211 and the second limiting plate 1212, referring to Figure 5 As shown, in some examples of this embodiment, the second folding member 122 comprises a fourth limiting plate 1221 and a fifth limiting plate 1222 which are spaced apart in the third direction, the fourth limiting plate 1221 and the fifth limiting plate 1222 are arranged between the first limiting plate 1211 and the third limiting plate 1213, and the second folding passage 1204 is arranged between the fourth limiting plate 1221 and the fifth limiting plate 1222.

[0071] Referring to Figure 5 As shown in the figure, in some examples of this embodiment, the second folding member 122 further comprises a fourth connecting plate 1223, the tail end of the fourth limiting plate 1221 in the first direction and the tail end of the fifth limiting plate 1222 in the first direction are connected through the fourth connecting plate 1223, and the fourth connecting plate 1223 is located between the first connecting plate 1214 and the second connecting plate 1215.

[0072] It can be understood that the first folding member 121 and the second folding member 122 are used in cooperation. Figure 6 The cooperation mode of the first folding member 121 and the second folding member 122 is shown. Please refer to Figure 6 , the second folding member 122 is located between the first limiting plate 1211 and the third limiting plate 1213, and the second folding channel 1204 is in communication with the first folding channel 1201. In actual use, the edge of the fabric 200 is first reversely turned into the first folding channel 1201 to form the first folding, and then reversely turned into the second folding channel 1204 from the first folding channel 1201 to form the second folding. It can be understood that the direction of the fabric 200 entering the second folding channel 1204 is opposite to the direction of the fabric 200 entering the first folding channel 1201, and the edge of the fabric 200 reversely turns when entering the first folding channel 1201, and the edge of the fabric 200 reversely turns again when entering the second folding channel 1204 to form the folding.

[0073] Further, the fabric 200 forms a folding in the first folding member 121 and the second folding member 122, which will drive the fabric 200 outside the first folding member 121 and the second folding member 122 to form a folding. In actual use, the folding of the fabric 200 outside the first folding member 121 and the second folding member 122 can be sewn to form a loop. Then, the fabric 200 is translated along the second direction, so that the fabric 200 passes through the first folding channel 1201 along the two openings of the first folding channel 1201, and passes through the second folding channel 1204 along the two openings of the second folding channel 1204, so that the entire edge of the fabric 200 is sequentially formed.

[0074] After the loop is formed, the remaining part of the edge of the fabric 200 is still located in the first folding channel 1201 and the second folding channel 1204, and it is difficult to exit. The present disclosure provides a movable second folding member 122, which is moved into the folding member accommodating groove 1203 after the loop is formed, so that the second folding member 122 exits the loop, and the fabric 200 can exit the second folding member 122 and the first folding member 121.

[0075] Referring to Figure 3 As shown in the figure, in some examples of this embodiment, a folding driving member is further included, and the folding driving member is used to drive the second folding member 122 to move.

[0076] Referring to Figure 3 In some examples of this embodiment, the hemming mechanism 120 further comprises a hemming rotating member for driving the first hemming member 121 and the second hemming member 122 to rotate in the second direction.

[0077] Referring to Figure 3 In some examples of this embodiment, the hemming driving member comprises a driving part 1231, a guiding part 1232 and a connecting part 1233, the driving part 1231 is arranged on the guiding part 1232 and is movable along the guiding part 1232, the driving part 1231 is connected to the second hemming member 122 through the connecting part 1233; the first hemming member 121 is fixedly connected to the guiding part 1232, the hemming rotating member comprises a rotating shaft 1241 and an operating handle 1242, the hemming guiding part 1232 is rotatably connected to the rotating shaft 1241, and the operating handle 1242 is connected to the hemming guiding part 1232.

[0078] Referring to Figure 1 When the hemming rotating member rotates in the second direction, the leading end (left side) of the first hemming channel 1201 gradually rotates above the trailing end (right side), and the hem of the fabric 200 can exit the first hemming channel 1201 from top to bottom. Therefore, the hemming rotating member can make the fabric 200 more easily exit the hemming mechanism 120.

[0079] In some examples of this embodiment, in order to connect the second hemming member 122 to the connecting part 1233, referring to Figure 4 In some embodiments of the present disclosure, the first connecting plate 1214 is connected to the partial third limiting plate 1213, so that the third limiting plate 1213 has a partially exposed space. In combination with Figure 3 As shown, the connecting part 1233 extends into the hemming member working area 1202 through the space and is connected to the fifth limiting plate 1222. In this way, the second hemming member 122 is connected to the driver without interfering with the hem of the fabric 200.

[0080] In some examples of this embodiment, the fabric ring car sewing device further comprises a fabric pressing member (not shown in the figure) for pressing the hem of the fabric 200, which can press the hem of the fabric 200 when the fabric 200 exits the first hemming channel 1201 and the second hemming channel 1204, to ensure that the hem is not loose.

[0081] In some examples of this embodiment, the fabric ring car sewing device further comprises a gas jetting mechanism (not shown in the figure), which can jet gas in the second direction towards the first hemming channel 1201 and the second hemming channel 1204 to assist the hem of the fabric 200 to smoothly pass through the first hemming channel 1201 and the second hemming channel 1204.

[0082] When the edge of the fabric 200 passes through the first and second folding members 121 and 122, there can be a slight error in the position of the fabric 200. The cumulative error can cause the final fabric 200 to have a non-uniform loop. To solve this problem, in some examples of this embodiment, the fabric loop sewing device further comprises a correction mechanism, which comprises a first correction wheel 151, a second correction wheel 152, and a fabric position detector 153. The fabric position detector 153 is used to detect the position of the fabric 200. Optionally, the fabric position detector 153 can be a photoelectric sensor. The fabric position detector 153 is electrically connected to the first and second correction wheels 151 and 152 to feed back the detected position of the fabric 200 to the first and second correction wheels 151 and 152, and adjust the position of the fabric 200 by the first and second correction wheels 151 and 152.

[0083] Figure 7 The structure of the first and second correction wheels 151 and 152 in the correction mechanism is shown in the structural diagram. Referring to Figure 7 The first and second correction wheels 151 and 152 are arranged between the first folding member 121 and the second support member 112, and on the moving path of the fabric 200 between the first folding member 121 and the second support member 112. In actual use, the fabric 200 is sleeved on the first and second correction wheels 151 and 152, and the first and second correction wheels 151 and 152 can adjust the position of the edge of the fabric 200 by rotating themselves. Specifically, the first correction wheel 151 is used to adjust the length of the fabric 200 entering the first folding channel 1201, and the second correction wheel 152 is used to adjust the length of the fabric 200 entering the second folding channel 1204. Through the adjustment of the two correction wheels, it can be ensured that the length of the fabric 200 in the first and second folding channels 1201 and 1204 during the process of passing through the first and second folding members 121 and 122 is fixed, so as to ensure the uniformity of the loop of the finally prepared fabric 200.

[0084] In this embodiment, the fabric position detector 153 only needs to be arranged to detect the position of the fabric 200. Optionally, referring to Figure 1 The fabric position detector 153 is arranged on the alignment mechanism 140.

[0085] In some examples of this embodiment, referring to Figure 1As shown, the sewing mechanism 130 has a sewing needle arranged on the side of the hemming mechanism 120 away from the first and second deviation correcting wheels 151 and 152. After the fabric 200 is corrected by the first and second deviation correcting wheels 151 and 152, the fabric 200 enters the first and second hemming members 121 and 122 to complete the hemming, and then the fabric 200 is sewn by the sewing needle after the fabric 200 comes out of the first and second hemming members 121 and 122, thereby improving the accuracy of sewing.

[0086] In some examples of the embodiment, the label placing mechanism 160 is further included. Figure 7 A structural schematic diagram of the label placing mechanism 160 is shown. Referring to Figure 7 As shown, the label placing mechanism 160 includes a label clamping member 161 and a clamping driving member 162. The label clamping member 161 is arranged between the first hemming member 121 and the first support member 111, and is used to clamp a label. The clamping driving member 162 is used to drive the label clamping member 161 to press the label on the hem of the fabric 200.

[0087] In some examples of the embodiment, the label placing mechanism 160 can further include a label pressing member (not shown in the figure). The label pressing member is used to press the label on the fabric 200 after the label is placed on the fabric 200, so as to avoid displacement of the label.

[0088] Referring to Figure 1 As shown, in some examples of the embodiment, the loop sewing device further includes a label suction accessory 170 arranged below the label clamping member 161 and used to suck the label. The label suction accessory 170 can be a plate-shaped suction accessory connected to a suction component. The plate-shaped suction accessory is provided with suction holes on the surface thereof. The suction component performs suction through the suction holes, so that the label suction accessory 170 generates negative pressure on the surface thereof, thereby sucking the label and preventing the label from being displaced due to the pushing of the presser foot during sewing.

[0089] In some examples of the embodiment, the label clamping member 161 can be arranged on the side of the first hemming member 121 having the sewing needle, so as to sew the label on the loop of the fabric 200 while sewing the loop, thereby saving the preparation process and improving the preparation efficiency.

[0090] The loop sewing device for fabric provided by the above-mentioned embodiment can be used to prepare the loop of the fabric. For example, the fabric can be a pillowcase.

[0091] Further, the disclosure also provides a loop sewing method for fabric, which includes the following steps:

[0092] The second hemming member is arranged in the hemming member working area in the first hemming member by using the loop sewing device for fabric in the above-mentioned embodiment.

[0093] The fabric is sleeved on the two support members, and the edge of the fabric is guided into the first hemming channel, and then the edge of the fabric is guided from the first hemming channel into the second hemming channel to form a hem;

[0094] The fabric is moved so that the edge of the fabric continuously passes through the side opening of the first hemming member and the side opening of the second hemming member in the second direction, and the hem is sewn to the main body part of the fabric to form a loop opening; and

[0095] The second hemming member is controlled to enter the hemming member accommodating groove, and the fabric is controlled to exit the first hemming channel.

[0096] In some examples of the embodiment, the method further comprises: sleeving the fabric on the first deviation correction wheel and the second deviation correction wheel, detecting the position of the fabric by using a fabric position detector, and controlling the first deviation correction wheel to adjust the length of the fabric entering the first hemming channel and controlling the second deviation correction wheel to adjust the length of the fabric entering the second hemming channel according to the information detected by the fabric position detector.

[0097] In some examples of the embodiment, in the step of sewing the hem to the main body part of the fabric to form a loop opening, the method further comprises: placing a label on the hem of the fabric by using a label holder, and sewing the label on the hem of the fabric.

[0098] In some examples of the embodiment, after the second hemming member is controlled to enter the hemming member accommodating groove, the method further comprises: rotating the first hemming member and the second hemming member around the second direction as the rotation axis, so that the tail end of the first hemming channel is higher than the head end, and then controlling the fabric to exit the first hemming channel.

[0099] In some examples of the embodiment, after the fabric is controlled to exit the first hemming channel, the method further comprises: moving the fabric in the first direction so that the sewing line at the tail end of the fabric coincides with the sewing line at the head end.

[0100] In the fabric loop opening sewing method, the fabric is first placed in the first hemming channel and the second hemming channel so that part of the edge of the fabric forms a hem, and then the remaining part of the fabric is continuously formed into a hem and sewn to form a loop opening by translating the fabric in the second direction and simultaneously sewing. Compared with the manual hemming method in the prior art, the fabric loop opening sewing method can effectively save the labor required in preparing the loop opening, and improve the preparation efficiency of the fabric loop opening.

[0101] The technical features of the above embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above embodiments are described, but as long as the combinations of the technical features do not exist, they should be considered as the scope of the description.

[0102] The above embodiments only express several implementation manners of the present application, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the present application. It should be noted that, for ordinary skilled persons in the art, several modifications 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 protection scope of the patent of the present application should be subject to the appended claims.

Claims

1. A loop sewing apparatus for a fabric loop, characterized by comprising: The utility model relates to a fabric folding and sewing device, comprising: a fabric supporting mechanism, a folding mechanism and a sewing mechanism; the fabric supporting mechanism comprises two spaced-apart supporting members for supporting a fabric to be folded; the folding mechanism comprises a first folding member and a second folding member used in cooperation, both of which are located between the two supporting members; the first folding member has a first folding channel, a folding member working area and a folding member accommodating groove, the first folding channel has openings through both sides in a second direction intersecting a first direction, and the first folding channel is provided below with the folding member working area and the folding member accommodating groove in a third direction intersecting both the first direction and the second direction; the second folding member has a second folding channel communicating with the first folding channel, and the second folding member can move between the folding member working area and the folding member accommodating groove, and the second folding channel has openings through both sides in the second direction; the sewing mechanism is arranged on the side of the first folding member and the second folding member in the second direction, and is used for sewing the folded edge of the fabric; a deviation rectifying mechanism is further included, which comprises a rotatable first deviation rectifying wheel, a rotatable second deviation rectifying wheel and a fabric position detector, the first deviation rectifying wheel and the second deviation rectifying wheel are arranged on the fabric moving path between the first folding member and one of the supporting members, the fabric position detector is electrically connected to the first deviation rectifying wheel and the second deviation rectifying wheel, the first deviation rectifying wheel is used for adjusting the length of the fabric entering the first folding channel, and the second deviation rectifying wheel is used for adjusting the length of the fabric entering the second folding channel.

2. The loop sewing apparatus of claim 1, wherein, a positioning mechanism is further included, which comprises a positioning driving member connected to at least one of the supporting members, and the positioning driving member is used for driving the supporting member to move in the first direction.

3. The loop sewing apparatus of claim 2, wherein, the fabric supporting mechanism further comprises at least one supporting driving member connected to the supporting members, and the supporting driving member is used for driving the supporting members to adjust the distance between the two supporting members.

4. The loop sewing apparatus of claim 3, wherein, one of the supporting members is connected to the positioning driving member, and the other supporting member is connected to the supporting driving member.

5. The looped fabric sewing device of claim 1, wherein, the sewing needle in the sewing mechanism is arranged on the side of the folding mechanism away from the first deviation rectifying wheel and the second deviation rectifying wheel.

6. The looped fabric sewing device of claim 1, wherein, a label placing mechanism is further included, which comprises a label clamping member located between the first folding member and one of the supporting members, and a clamping driving member, the label clamping member is used for clamping a label, and the clamping driving member is used for driving the label clamping member to press the label on the folded edge of the fabric.

7. The looped fabric sewing device of claim 6, wherein, a label suction accessory is further included, which is arranged below the label clamping member and is used for sucking the label.

8. The looped fabric sewing device according to any one of claims 1 to 7, wherein The first folding member comprises a first limiting plate, a second limiting plate and a third limiting plate arranged in sequence and spaced apart in the third direction, the length of the second limiting plate is shorter than the length of the first limiting plate and the length of the third limiting plate; The first folding member further comprises a first connecting plate, a second connecting plate and a third connecting plate arranged in sequence and spaced apart, the first end of the first limiting plate in the first direction and the first end of the third limiting plate in the first direction are connected by the first connecting plate, and the tail end of the second limiting plate in the first direction and the tail end of the third limiting plate in the first direction are connected by the second connecting plate, and the third connecting plate is connected to the tail end of the first limiting plate in the first direction.

9. The looped fabric sewing device of claim 8, wherein, The first folding member further comprises at least one side baffle, the side baffle is arranged between the second limiting plate and the third limiting plate, and is connected to the side edge of the second limiting plate in the second direction and the side edge of the third limiting plate in the second direction.

10. The looped fabric sewing device of claim 9, wherein, The second folding member comprises a fourth limiting plate and a fifth limiting plate arranged in sequence and spaced apart in the third direction, the fourth limiting plate and the fifth limiting plate are arranged between the first limiting plate and the third limiting plate, and the second folding channel is arranged between the fourth limiting plate and the fifth limiting plate.

11. The looped fabric sewing device of claim 10, wherein, The second folding member further comprises a fourth connecting plate, the tail end of the fourth limiting plate in the first direction and the tail end of the fifth limiting plate in the first direction are connected by the fourth connecting plate, and the fourth connecting plate is located between the first connecting plate and the second connecting plate.

12. The looped fabric sewing device of claim 11, wherein, The folding mechanism further comprises a folding driving member for driving the second folding member to move.

13. The looped fabric sewing device according to any one of claims 1 to 7, 9 to 12, wherein The folding mechanism further comprises a folding rotating member for driving the first folding member and the second folding member to rotate around the second direction.

14. The looped fabric sewing device of claim 13, wherein, The folding driving member comprises a driving component, a guide component and a connecting component, the driving component is arranged on the guide component and can move along the guide component, and the driving component is connected to the second folding member through the connecting component.

15. The looped fabric sewing device of claim 14, wherein, The first folding member is fixedly connected to the guide component, the folding rotating member comprises a rotating shaft and an operating handle, the folding rotating member is rotatably connected to the rotating shaft, and the operating handle is connected to the guide component. The method comprises the following steps:

16. A method of sewing a looped end of a fabric, the method comprising: The second folding member is arranged in the folding member working area in the first folding member by using the fabric ring port sewing device according to any one of claims 1-15; The fabric sleeve is arranged on the two support members, the edge of the fabric is guided into the first folding channel, and then the edge of the fabric is guided from the first folding channel into the second folding channel to form a folding edge. ​ moving the fabric such that an edge of the fabric is continuously passed through the two side openings of the first hemming member and the two side openings of the second hemming member in a second direction while the hem is stitched to the main body portion of the fabric to form a loop opening; and, controlling the second hemming member to enter a hemming member receiving slot and controlling the fabric to exit the first hemming passage.

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