Rubber band shrinking and wrinkling guide device and sewing machine

Abstract

The utility model discloses a rubber band shrinking and wrinkling guiding device and a sewing machine, the rubber band shrinking and wrinkling guiding device comprises a bottom plate, a first layer plate, a second layer plate and a pressing plate, the bottom plate is provided with a first guiding groove and a receding groove, the first guiding groove extends in the first direction, and the receding groove communicates with the first guiding groove; the first layer plate is arranged on the bottom plate, an open hole is formed in the first layer plate, and the open hole corresponds to the first guide groove and communicates with the first guide groove; the second layer plate is arranged on the first layer plate, and a second guide groove extending in the first direction is formed in the second layer plate; the pressing plate is arranged on the second layer plate, a pressing strip is arranged on the pressing plate, and the pressing strip extends into the second guide groove so as to press the rubber string located in the second guide groove. According to the rubber band shrinking and wrinkling guiding device and the sewing machine, in the sewing process, the rubber band can be stretched with fixed strength, the evenly stretched rubber band and cloth are sewn together, and therefore the quality of a rubber band sewn product and the sewing efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to clothing production field, concretely relates to a rubber band wrinkle guiding device and sewing machine. BACKGROUND

[0002] In the clothing manufacturing industry, in order to make the clothing containing rubber band can provide good comfort and fit for people, in the process of sewing rubber band, usually need to pull the rubber band in advance, ensure that the rubber band is straightened to the appropriate degree and is sewn into the cloth, so that the rubber band can provide just right elasticity and support when wearing. At present, most of the rubber band is straightened by hand at the same time as sewing, which not only leads to low sewing efficiency, but also the effect of rubber band sewing is poor. SUMMARY

[0003] The rubber band wrinkle guiding device and sewing machine disclosed by the embodiment of the application aim to stretch the rubber band with fixed force, so that the uniformly stretched rubber band is sewn together with the cloth, thereby facilitating the improvement of rubber band sewing product quality and sewing efficiency.

[0004] In order to achieve the above-mentioned purpose, in the first aspect, the rubber band wrinkle guiding device is applied to the sewing machine, and the sewing machine comprises a presser foot, and the rubber band wrinkle guiding device comprises:

[0005] A bottom plate, the bottom plate is provided with a first guide groove and an avoiding groove, the first guide groove extends along a first direction, the avoiding groove is communicated with the first guide groove, and the avoiding groove is configured to avoid the presser foot on the sewing machine;

[0006] A first layer plate, the first layer plate is arranged on the bottom plate, and the first layer plate is provided with an opening, the opening is arranged corresponding to the first guide groove and is communicated with the first guide groove;

[0007] A second layer plate, the second layer plate is arranged on the first layer plate, and the second layer plate is provided with a second guide groove extending along the first direction, the second guide groove is configured to guide the rubber band into the opening, and the opening is configured to allow the rubber band to enter the first guide groove from the second guide groove so as to be guided into the avoiding groove through the first guide groove;

[0008] A pressing plate, the pressing plate is arranged on the second layer plate, and the pressing plate is provided with a pressing strip, the pressing strip extends into the second guide groove to compress the rubber band located in the second guide groove.

[0009] As an optional implementation, along the first direction, the pressing strip is arranged corresponding to at least part of the opening, so that the pressing strip covers at least part of the opening.

[0010] As an optional implementation, the elastic cord crimping guide device further comprises an adjusting member connected to the pressing plate, the first layer plate and the second layer plate, and the adjusting member is configured to adjust the distance between the pressing plate and the first layer plate and the second layer plate.

[0011] As an optional implementation, the first layer plate is provided with a first adjusting hole, and the second layer plate is provided with a second adjusting hole corresponding to the first adjusting hole, and the first adjusting hole and the second adjusting hole are in communication.

[0012] The pressing plate is provided with a third adjusting hole corresponding to the second adjusting hole, and the third adjusting hole and the second adjusting hole are in communication, and the first adjusting hole, the second adjusting hole and the third adjusting hole are configured to pass through the adjusting member to adjust the pressing plate and the first layer plate and the second layer plate.

[0013] As an optional implementation, the bottom plate comprises two first sub-plates, and the two first sub-plates are spaced apart along a second direction to form the first guide slot and the avoidance slot between the two first sub-plates; and / or,

[0014] The second layer plate comprises two second sub-plates, and the two second sub-plates are spaced apart along the second direction to form the second guide slot between the two second sub-plates.

[0015] Wherein, the second direction intersects the first direction.

[0016] As an optional implementation, the first sub-plate comprises a first part and a second part connected in sequence along the first direction, and the two first parts are spaced apart along the second direction to form the first guide slot, and the two second parts are spaced apart along the second direction to form the avoidance slot, and along the second direction, the width of the second part is smaller than the width of the first part, so that the width of the avoidance slot in the second direction is greater than the width of the first guide slot in the second direction.

[0017] As an optional implementation, the bottom plate is provided with a first fixing hole and a second fixing hole, the first fixing hole is arranged on one side of the avoidance slot, and the second fixing hole is arranged on the other side of the avoidance slot corresponding to the first fixing hole, and the first fixing hole and the second fixing hole are configured to fix the bottom plate to the sewing machine.

[0018] As an optional implementation, the avoidance slot is located at the outlet end of the first guide slot, and the avoidance slot extends along the first direction.

[0019] The second guide slot extends through the second layer plate along the first direction, and an outlet end of the second guide slot is in the same direction as an outlet end of the first guide slot.

[0020] As an optional implementation, the bottom plate, the first layer plate, the second layer plate and the pressing plate are sequentially stacked in the thickness direction of the bottom plate, and one end surface of the bottom plate, the first layer plate, the second layer plate and the pressing plate is flushly arranged along the first direction.

[0021] In a second aspect, the utility model discloses a sewing machine, the sewing machine includes machine table, presser foot and the rubber band wrinkle guide device of any one embodiment, the rubber band wrinkle guide device sets up on the machine table, and the presser foot is configured in the rubber band wrinkle guide device.

[0022] Compared with the prior art, the utility model has the beneficial effects that:

[0023] The utility model discloses a rubber band wrinkle guide device and sewing machine, by placing the rubber band wrinkle guide device on the sewing machine, the rubber band outlet of the rubber band wrinkle guide device is close to the cloth inlet of the sewing machine, and the two sides of the avoiding slot of the bottom plate are close to the two sides of the presser foot of the sewing machine. In the sewing process, the rubber band is first inserted from the second guide slot, transferred from the second guide slot to the first guide slot through the opening, and then pressed under the presser foot of the sewing machine through the first guide slot, and then the pressing plate is covered to press the rubber band in the second guide slot through the pressing strip. Finally, the cloth is put into the sewing machine to complete the sewing. By using the above-mentioned rubber band wrinkle guide device and sewing machine, the rubber band can be stretched with a fixed force during the sewing process, so that the uniformly stretched rubber band is sewn together with the cloth, thereby improving the quality and efficiency of rubber band sewing products. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0025] Figure 1 The structure diagram of the rubber band wrinkle guide device provided in the embodiments of the present application is shown.

[0026] Figure 2 The structure diagram of the bottom plate provided in the embodiments of the present application is shown.

[0027] Figure 3 The structure diagram of the first layer plate provided in the embodiments of the present application is shown.

[0028] Figure 4 A structure schematic diagram of the second layer plate provided for the embodiment of the present application is shown in the following figure.

[0029] Figure 5 A structure schematic diagram of the pressing plate provided for the embodiment of the present application is shown in the following figure.

[0030] Figure 6 A structure schematic diagram of the sewing machine provided for the embodiment of the present application is shown in the following figure.

[0031] Figure 7 A schematic diagram of the elastic shrinkage guide device provided for the embodiment of the present application fixed on the sewing machine is shown in the following figure.

[0032] Explanation of reference signs:

[0033] 100, elastic shrinkage guide device;

[0034] 110, bottom plate; 111, first guide slot; 112, avoiding slot; 113, first partition plate; 1131, first part; 1132, second part; 114, first fixing hole; 115, second fixing hole;

[0035] 120, first layer plate; 121, first adjusting hole; 122, opening;

[0036] 130, second layer plate; 131, second guide slot; 132, second partition plate; 133, second adjusting hole;

[0037] 140, pressing plate; 141, pressing strip; 142, third adjusting hole;

[0038] 150, adjusting member;

[0039] 200, sewing machine; 201, machine table; 202, needle; 203, presser foot;

[0040] X, first direction; Y, second direction; Z, thickness direction of the bottom plate. DETAILED DESCRIPTION

[0041] The technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without any creative work fall within the scope of protection of the present application.

[0042] It should be noted that the terms "comprising" and "having" and any variations thereof in the embodiments of the present application and the accompanying drawings are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but can optionally further include steps or units not listed, or can optionally further include other steps or units inherent to the process, method, product or device.

[0043] In addition, the terms "first", "second", etc. are mainly used to distinguish different devices, elements or components (the specific types and structures can be the same or different), and are not used to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "a plurality of" is two or more.

[0044] The technical solutions of the utility model will be further described below in combination with the embodiments and the accompanying drawings.

[0045] Please refer to Figures 1 to 5 , Figure 1 The structure schematic view of the elastic band wrinkle guiding device provided by the embodiments of the present application, Figure 2 The structure schematic view of the bottom plate provided by the embodiments of the present application, Figure 3 The structure schematic view of the first layer plate provided by the embodiments of the present application, Figure 4 The structure schematic view of the second layer plate provided by the embodiments of the present application, Figure 5 The structure schematic view of the pressing plate provided by the embodiments of the present application. The embodiments of the present application provide an elastic band wrinkle guiding device 100, which is applied to a sewing machine 200 (please refer to Figure 6 ), the sewing machine 200 includes a presser foot 203 (please refer to Figure 6 ), and the elastic band wrinkle guiding device 100 can cooperate with the presser foot 203 to realize the uniform stretching of the elastic band and the cloth.

[0046] Specifically, the elastic band wrinkle guiding device 100 can include a bottom plate 110, a first layer plate 120, a second layer plate 130 and a pressing plate 140.

[0047] The bottom plate 110 is provided with a first guide groove 111 and an avoiding groove 112, the first guide groove 111 extends along a first direction X, the avoiding groove 112 is communicated with the first guide groove 111, and the avoiding groove 112 is configured to avoid the presser foot 203 on the sewing machine 200.

[0048] It can be understood that the above-mentioned first direction X can be along the length direction of the bottom plate 110, or can also be along the width direction of the bottom plate 110, and the specific setting can be made according to the actual needs, and the embodiments do not make specific limitation.

[0049] The first layer plate 120 is arranged on the bottom plate 110, and the first layer plate 120 is provided with an opening 122, which is arranged corresponding to the first guide groove 111 and communicates with the first guide groove 111.

[0050] The second layer plate 130 is arranged on the first layer plate 120, and the second layer plate 130 is provided with a second guide groove 131 extending along the first direction X, which is configured to guide the elastic rubber into the opening 122, and the opening 122 is configured to guide the elastic rubber from the second guide groove 131 into the first guide groove 111 to be guided into the avoiding groove 112 through the first guide groove 111.

[0051] The pressing plate 140 is arranged on the second layer plate 130, and the pressing plate 140 is provided with a pressing strip 141 extending into the second guide groove 131 to press the elastic rubber in the second guide groove 131.

[0052] In use, the elastic rubber crimping guide device 100 is placed on the sewing machine 200, so that the elastic rubber outlet of the elastic rubber crimping guide device 100 is close to the cloth inlet of the sewing machine 200, and the two sides of the avoiding groove 112 of the bottom plate 110 are close to the two sides of the presser foot 203 of the sewing machine 200. During sewing, the elastic rubber is first inserted from the second guide groove 131, transferred from the second guide groove 131 to the first guide groove 111 through the opening 122, and then inserted out of the first guide groove 111 and pressed under the presser foot 203 of the sewing machine 200, then the pressing plate 140 is covered to press the elastic rubber in the second guide groove 131 through the pressing strip 141, and finally the cloth is put into the sewing machine 200 to complete sewing.

[0053] It can be seen that the elastic rubber crimping guide device of the application can realize the stretching of the elastic rubber with fixed force during sewing, so that the uniformly stretched elastic rubber is sewn with the cloth, thereby improving the quality and efficiency of the elastic rubber sewing product.

[0054] In some embodiments, the bottom plate 110 is provided with a first fixing hole 114 and a second fixing hole 115, the first fixing hole 114 is arranged on one side of the avoiding groove 112, the second fixing hole 115 is arranged on the other side of the avoiding groove 112 corresponding to the first fixing hole 114, and the first fixing hole 114 and the second fixing hole 115 are configured to fix the bottom plate 110 on the sewing machine 200.

[0055] As Figure 1As shown, a first fixing hole 114 is arranged on the right side of the avoiding groove 112 of the bottom plate 110 in the first direction X, and a second fixing hole 115 is arranged on the left side of the avoiding groove 112 of the bottom plate 110 corresponding to the first fixing hole 114. The first fixing hole 114 and the second fixing hole 115 are in a symmetrical relationship in the first direction X. The first fixing hole 114 and the second fixing hole 115 can be used to fix the bottom plate 110 on the sewing machine 200 during the process of installing the elastic shrinkage guide device 100 on the sewing machine 200.

[0056] By arranging the first fixing hole 114 and the second fixing hole 115 on both sides of the avoiding groove 112 of the bottom plate 110, when installing the elastic shrinkage guide device 100 on the sewing machine 200, the position can be directly aligned without checking the position, which not only improves the installation efficiency of the elastic shrinkage guide device 100, but also improves the stability of the elastic shrinkage guide device 100 and the accuracy of the sewing process, thereby ensuring the quality and efficiency of the elastic sewing product.

[0057] It can be understood that the fixing hole can also be provided with more than two, for example, three, four or more, which can be set according to actual needs, and the present embodiment does not make specific limitation.

[0058] Optionally, the fixing hole can be arranged on both sides of the avoiding groove 112 of the bottom plate 110, or on both sides of the first guide groove 111 of the bottom plate 110, but not limited thereto.

[0059] Optionally, the machine table 201 on the sewing machine 200 is provided with a stand column corresponding to the first fixing hole 114 and the second fixing hole 115, and the stand column is configured to pass through the first fixing hole 114 and the second fixing hole 115 to fix the bottom plate 110 on the sewing machine 200.

[0060] In some embodiments, the avoiding groove 112 is located at the outlet end of the first guide groove 111, and the avoiding groove 112 extends in the first direction X; the second guide groove 131 penetrates the second layer plate 130 in the first direction X, and the outlet end of the second guide groove 131 is in the same direction as the outlet end of the first guide groove 111.

[0061] Please refer again to Figure 1In the elastic cord crimping guide device 100, the first guide groove 111, the second guide groove 131 and the avoidance groove 112 all extend along the first direction X, which can refer to the guide direction or the sewing direction of the elastic cord, and the avoidance groove 112 is located at the outlet end of the first guide groove 111, so that not only the outlet ends of the second guide groove 131, the first guide groove 111 and the avoidance groove 112 are in the same direction, but also the inlet ends of the second guide groove 131, the first guide groove 111 and the avoidance groove 112 are in the same direction. Through the above design, not only can the whole elastic cord crimping guide device 100 be more compact and efficient in layout through the same direction design of the first guide groove 111, the second guide groove 131 and the avoidance groove 112, and the extra space required due to direction change is reduced, thereby allowing smaller device size and higher space utilization, but also the friction, jamming or direction change of the elastic cord during the guide process can be reduced, thereby improving the efficiency and smoothness of the whole guide process.

[0062] Optionally, the avoidance groove 112 can also extend along other directions, so that the extension direction of the avoidance groove 112 is different from the extension direction of the first guide groove 111, in which case a folding rod can be arranged at the outlet end of the first guide groove 111 to fold and guide the elastic cord out of the first guide groove 111 to the extension direction of the avoidance groove 112. By changing the layout of the first guide groove 111 and the avoidance groove 112, the elastic cord crimping guide device 100 can be changed accordingly according to the actual sewing requirements, so that the elastic cord crimping guide device 100 can adapt to various sewing scenarios.

[0063] In some embodiments, the bottom plate 110, the first layer plate 120, the second layer plate 130 and the pressing plate 140 are sequentially stacked in the thickness direction Z of the bottom plate, and the end faces of the bottom plate 110, the first layer plate 120, the second layer plate 130 and the pressing plate 140 are flush arranged along the first direction X.

[0064] Please refer again to Figure 1In the elastic cord crimping guide device 100, the thickness direction Z of the bottom plate 110 can refer to the vertical direction, the bottom plate 110 is the base of the elastic cord crimping guide device 100, the first layer plate 120, the second layer plate 130 and the pressing plate 140 are sequentially stacked on the bottom plate 110 along the thickness direction Z, and the end faces of the bottom plate 110, the first layer plate 120, the second layer plate 130 and the pressing plate 140 at the outlet end along the first direction X are flush arranged, the end faces of the second layer plate 130 and the pressing plate 140 at the opening 122 along the first direction X are flush arranged, and the end faces of the bottom plate 110, the first layer plate 120, the second layer plate 130 and the pressing plate 140 at each end along the second direction Y are flush arranged. Through the above design, the stability and compactness of the elastic cord crimping guide device 100 can be ensured, and the stable connection between the layer plates in the subsequent installation process and sewing process is also facilitated.

[0065] Alternatively, the end faces of any one end of the bottom plate 110, the first layer plate 120, the second layer plate 130 and the pressing plate 140 can also be non-flush arranged, as long as the first guide groove, the second guide groove, the opening and the avoiding groove are communicated, and the adjusting piece and the first adjusting hole, the second adjusting hole and the third adjusting hole are communicated and arranged.

[0066] Alternatively, when the first guide groove and the avoiding groove are provided on the bottom plate, the first guide groove and the avoiding groove can be formed by directly grooving on the bottom plate, or the first guide groove and the avoiding groove can also be formed by interval arrangement of multiple plates. For example, the bottom plate 110 includes two first sub-plates 113, and the two first sub-plates 113 are interval arranged along the second direction Y to form the first guide groove 111 and the avoiding groove 112 between the two first sub-plates 113.

[0067] Correspondingly, the second layer plate 130 can also include two second sub-plates 132, and the two second sub-plates 132 are interval arranged along the second direction Y to form the second guide groove 131 between the two second sub-plates 132; wherein the second direction Y intersects the first direction X.

[0068] By interval arrangement of the two first sub-plates 113 along the second direction Y to form the bottom plate 110 and interval arrangement of the two second sub-plates 132 along the second direction Y to form the second layer plate 130, the width of the first guide groove 111, the second guide groove 131 and the avoiding groove 112 can be flexibly changed, so as to adapt to elastic cords and presser feet 203 of different width sizes, and thus the versatility and adaptability of the elastic cord crimping guide device 100 are enhanced.

[0069] Optionally, the first sub-plate 113 can be an L-shaped plate, the first sub-plate 113 can include a first part 1131 and a second part 1132 connected in sequence along the first direction X, the first parts 1131 corresponding to the two first sub-plates 113 are arranged in the second direction Y to form the first guide slot 111, the second parts 1132 corresponding to the two first sub-plates 113 are arranged in the second direction Y to form the avoiding slot 112, and along the second direction Y, the length of the second part 1132 is less than the length of the first part 1131, so that the width of the avoiding slot 112 is greater than the width of the first guide slot 111.

[0070] By designing the first part 1131 and the second part 1132 with different widths in the two first sub-plates 113 to form the corresponding first guide slot 111 and the avoiding slot 112, the first sub-plate 113 becomes a stepped plate, which provides a suitable width for the guide of the elastic band and the presser foot 203 of the sewing machine 200, and further improves the versatility and adaptability of the elastic band crimping guide device.

[0071] It can be understood that in other embodiments, the first sub-plate 113 can also be a plate of other shapes, which is not specifically limited in the present embodiment.

[0072] Optionally, along the first direction X, the length of the first part 1131 is greater than the length of the second part 1132, so that the length of the avoiding slot 112 in the first direction X is less than the length of the first guide slot 111 in the first direction X. In this way, a sufficient guide length can be provided to facilitate the guide of the elastic band, so that the elastic band can be stretched in the first guide slot 111 with a fixed force, and the crimping guide of the elastic band can be realized.

[0073] In some embodiments, along the first direction X, the pressing strip 141 is arranged at least partially corresponding to the opening 122, so that the pressing strip 141 covers at least part of the opening 122.

[0074] In the elastic band crimping guide device 100, the pressing strip 141 is configured to extend into the second guide slot 131 to press the elastic band located in the second guide slot 131. In the case that the lengths of the first layer plate 120, the second layer plate 130 and the pressing plate 140 are consistent, the length of the opening 122 on the rear side along the first direction X can be less than the length of the first layer plate 120, and the length of the pressing strip 141 can be equal to the length of the pressing plate 140, so that the pressing strip 141 can be arranged at least partially corresponding to the opening 122.

[0075] Optionally, the length of the pressing strip 141 can also be less than the length of the rear side of the opening 122 along the first direction X, so that the pressing strip 141 is not arranged corresponding to the opening 122, but can still press the rubber band in the second guide groove 131. Alternatively, the length of the pressing strip 141 can also be greater than the length of the front side of the opening 122 along the first direction X, so that a part of the pressing strip 141 can cover the opening 122.

[0076] The present application can effectively cover at least part of the opening 122 by arranging the pressing strip 141 at least partially corresponding to the opening 122, which not only prevents external impurities from entering the interior of the rubber band crimping guide device 100 through the opening 122, affecting the sewing process of the rubber band, but also allows the running state of the rubber band, such as the conveying speed, tension state, and whether there is a jam or deviation during the rubber band guiding process, to be observed through the part of the opening 122 not covered by the pressing strip 141, thereby ensuring the stability of the quality of the rubber band sewing product.

[0077] In some embodiments, the rubber band crimping guide device 100 further comprises an adjusting member 150 connected to the pressing plate 140, the first layer plate 120, and the second layer plate 130, and the adjusting member 150 is configured to adjust the spacing between the pressing plate 140 and the first layer plate 120 and the second layer plate 130. During the process of the pressing strip 141 pressing the rubber band in the second guide groove 131, the spacing between the pressing plate 140 and the first layer plate 120 and the second layer plate 130 can be changed by adjusting the adjusting member 150, thereby changing the pressing force of the pressing strip 141 on the rubber band in the second guide groove 131, and further allowing the rubber band to have different degrees of fixed stretch length for sewing.

[0078] Optionally, the adjusting member 150 can be one or multiple, and when the adjusting member is multiple, the multiple adjusting members can be spaced apart along the first direction, or can also be spaced apart along a direction intersecting the first direction, which can be arranged according to actual needs, and the present embodiment does not make specific limitations thereto.

[0079] Optionally, the adjusting member 150 can include a knob, a column, and a spring structure, the spring is sleeved on the column, the knob is arranged at one end of the column, and the column can be arranged in the opening by arranging the opening on the pressing plate, the first layer plate, and the second layer plate. By adjusting the knob, the spacing of the pressing plate, the first layer plate, and the second layer plate can be adjusted. Alternatively, the adjusting member can also be a structure such as a screw or a bolt.

[0080] Optionally, the first layer plate 120 is provided with a first adjusting hole 121, the second layer plate 130 is provided with a second adjusting hole 133 corresponding to the first adjusting hole 121, the first adjusting hole 121 and the second adjusting hole 133 are in communication, the pressing plate is provided with a third adjusting hole 142 corresponding to the second adjusting hole 133, the third adjusting hole 142 and the second adjusting hole 133 are in communication, and the first adjusting hole 121, the second adjusting hole 133 and the third adjusting hole 142 are configured to pass through the adjusting member 150 to adjust the distance between the pressing plate 140 and the first layer plate 120 and the second layer plate 130.

[0081] Please refer again to Figures 3 to 5 The first layer plate 120 is provided with two first adjusting holes 121, the second layer plate 130 is provided with two second adjusting holes 133 corresponding to the two first adjusting holes 121, the pressing plate 140 is provided with two third adjusting holes 142 corresponding to the two second adjusting holes 133, and the first adjusting hole 121 and the second adjusting hole 133 are in communication, and the third adjusting hole 142 and the second adjusting hole 133 are in communication. The first adjusting hole 121, the second adjusting hole 133 and the third adjusting hole 142 can be internally provided with threads, that is, the first adjusting hole 121, the second adjusting hole 133 and the third adjusting hole 142 are threaded holes, the adjusting member 150 can be a screw, and two adjusting members 150 pass through the corresponding first adjusting hole 121, second adjusting hole 133 and third adjusting hole 142 to adjust the clamping distance between the pressing plate 140 and the first layer plate 120 and the second layer plate 130. The stretching force of the rubber band is adjusted by the adjusting member 150, which not only simplifies the adjustment process, but also improves the accuracy and stability of the fixed stretching force of the rubber band, thereby further improving the quality and sewing efficiency of the rubber band sewing product.

[0082] In some embodiments, the bottom plate 110, the first layer plate 120, the second layer plate 130 and the pressing plate 140 can be metal plates, or can also be wooden plates, or can also be transparent polyvinyl chloride (PVC) plates, etc., which are not specifically limited here.

[0083] Optionally, the width of the rubber band suitable for the rubber band crimping guide device 100 is d1, 0.3cm≤d1≤2cm, the width of the first guide groove is d2, the width of the second guide groove is d3, and the width of the opening is d4. The width d2 of the first guide groove, the width d3 of the second guide groove and the width d4 of the opening can be consistent with the width d1 of the rubber band, that is, the width d2 of the first guide groove, the width d3 of the second guide groove and the width d4 of the opening also satisfy 0.3cm≤d2≤2cm, 0.3cm≤d3≤2cm, 0.3cm≤d4≤2cm.

[0084] Exemplarily, the widths d1, d2, d3 and d4 can be 0.3 cm, 0.5 cm, 0.8 cm, 0.99 cm, 1.1 cm, 1.3 cm, 1.55 cm, 1.6 cm, 1.82 cm, 1.9 cm or 2 cm, etc.

[0085] Optionally, the width of the bottom plate 110 of the elastic band crimping guide device 100 is k1, 7 cm≤k1≤8.5 cm, the width of the first layer plate is k2, the width of the second layer plate is k3, and the width of the pressing plate is k4. The width k2 of the first layer plate, the width k3 of the second layer plate, and the width k4 of the pressing plate 140 can be consistent with the width k1 of the bottom plate 110, that is, all satisfy 7 cm≤k2≤8.5 cm, 7 cm≤k3≤8.5 cm, and 7 cm≤k4≤8.5 cm.

[0086] Exemplarily, the lengths k1, k2, k3 and k4 can be 7 cm, 7.1 cm, 7.3 cm, 7.48 cm, 7.56 cm, 7.7 cm, 7.9 cm, 8.1 cm, 8.3 cm, 8.4 cm or 8.5 cm, etc.

[0087] Further, in the case that the bottom plate 110 includes two first sub-plates 113 and the second layer plate 130 includes two second sub-plates 132, the width k2 of the first layer plate, the width k3 of the second layer plate, and the width k4 of the pressing plate 140 can still be consistent with the width k1 of the bottom plate 110 (at this time, the width k1 of the bottom plate 110 is actually the sum of the widths of the two first sub-plates plus the width of the first guide groove).

[0088] Optionally, the length of the bottom plate 110 of the elastic band crimping guide device 100 is c1, 7 cm≤c1≤10 cm, the length of the first layer plate 120 is c2, the length of the second layer plate 130 is c3, and the length of the pressing plate 140 is c4. The length c2 of the first layer plate 120 and the length c3 of the second layer plate 130 can be consistent with the length c4 of the pressing plate 140, that is, all satisfy 7 cm≤c2≤8 cm, 7 cm≤c3≤8 cm, and 7 cm≤c3≤8 cm. It should be noted that in the case that the length c2 of the first layer plate 120, the length c3 of the second layer plate 130 and the length c4 of the pressing plate 140 are consistent, the length c1 of the bottom plate 110 can be usually greater than the length of one avoiding groove 112 of c2, c3 and c4.

[0089] Exemplarily, the length c1 can be 7 cm, 7.1 cm, 7.3 cm, 7.4 cm, 7.6 cm, 7.7 cm, 7.9 cm, 8.1 cm, 8.3 cm, 8.5 cm, 8.7 cm, 8.9 cm, 9.1 cm, 9.32 cm, 9.5 cm, 9.7 cm, 9.9 cm or 10 cm, etc.; the lengths c2, c3 and c4 can be 7 cm, 7.1 cm, 7.3 cm, 7.4 cm, 7.6 cm, 7.7 cm, 7.9 cm or 8 cm, etc.

[0090] Alternatively, the length c2 of the first layer plate 120, the length c3 of the second layer plate 130 and the length c4 of the pressing plate 140 can also be consistent with the length c1 of the bottom plate 110, in which case, the first layer plate 120, the second layer plate 130 and the pressing plate 140 all need to be provided with the same size of the avoiding slot 112.

[0091] Alternatively, the thickness of the bottom plate 110 of the elastic cord crimping guide device 100 is h1, 1 mm≤h1≤2 mm, the thickness of the first layer plate 120 is h2, the thickness of the second layer plate 130 is h3, and the thickness of the pressing plate 140 is h4, and the thickness h2 of the first layer plate 120, the thickness h3 of the second layer plate 130 and the thickness h4 of the pressing plate 140 can be consistent with the thickness h1 of the bottom plate 110, that is, all satisfy 1 mm≤h2≤2 mm, 1 mm≤h3≤2 mm and 1 mm≤h4≤2 mm.

[0092] Exemplarily, the thickness h1, h2, h3 and h4 can all be 1 mm, 1.1 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.9 mm or 2 mm, etc.

[0093] In the embodiments of the present application, by adopting the above-mentioned size and material design, the structural strength of the elastic cord crimping guide device 100 can be improved, and at the same time, the bottom plate 110, the first layer plate 120, the second layer plate 130 and the pressing plate 140 can be relatively thin, thereby reducing the overall weight of the elastic cord crimping guide device 100 and improving the portability and portability of the elastic cord crimping guide device 100.

[0094] In a second aspect, please refer to Figure 6 , Figure 6 The structure schematic diagram of the sewing machine provided in the embodiments of the present application. The embodiments of the present application also provide a sewing machine 200, which comprises a machine table 201, a needle 202 arranged on the machine table, a presser foot 203 arranged on the machine table 201 and the elastic cord crimping guide device 100 as any one of the above-mentioned embodiments. The elastic cord crimping guide device 100 is arranged on the machine table 201, the presser foot 203 is configured in the avoiding slot 112 of the elastic cord crimping guide device 100 for pressing the elastic cord, and the needle 202 is configured to sew the elastic cord and the cloth under the presser foot 203.

[0095] Figure 7 This is a schematic diagram showing the elastic band gathering guide device provided in an embodiment of this application fixed on a sewing machine. Figure 7 As shown, the elastic band wrinkling guide device 100 is laid flat and fixed on the machine base 201 of the sewing machine 200 through the first fixing hole 114 and the second fixing hole 115. The elastic band is then inserted into the second guide groove 131, turned from the second guide groove 131 into the first guide groove 111 through the opening 122, and passed out through the first guide groove 111. The presser foot 203 of the sewing machine 200 is placed in the relief groove 112 of the elastic band wrinkling guide device 100 to press the elastic band tightly. Then the pressure plate 140 is covered, and the needle 202 of the sewing machine 200 is aligned with the side of the presser foot 203 used for sewing, and sewing can begin.

[0096] By employing an elastic band shrinking guide device, the elastic band can be stretched with a fixed force during the sewing process, allowing the evenly stretched elastic band to be sewn together with the fabric, thereby improving the quality and sewing efficiency of elastic band sewn products.

[0097] The above provides a detailed description of the elastic band gathering guide device and sewing machine disclosed in the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the elastic band gathering guide device and sewing machine of this utility model and its core ideas. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A rubber band wrinkling guide device, characterized in that, The elastic band gather guide device is used in a sewing machine, the sewing machine including a presser foot, and the elastic band gather guide device includes: The base plate is provided with a first guide groove and a clearance groove. The first guide groove extends along a first direction, and the clearance groove is connected to the first guide groove. The clearance groove is configured to avoid the presser foot on the sewing machine. A first layer plate is disposed on the base plate. The first layer plate has an opening that corresponds to and communicates with the first guide groove. A second layer plate is disposed on the first layer plate. The second layer plate is provided with a second guide groove extending along the first direction. The second guide groove is configured to guide the elastic band into the opening. The opening is configured to allow the elastic band to enter the first guide groove from the second guide groove, so as to be guided to the clearance groove via the first guide groove. A pressure plate is disposed on the second layer plate, and a pressure strip is provided on the pressure plate. The pressure strip extends into the second guide groove to press the elastic band located in the second guide groove.

2. The elastic band wrinkling guide device according to claim 1, characterized in that, Along the first direction, the pressure strip is at least partially corresponding to the opening, so that the pressure strip covers at least part of the opening.

3. The elastic band wrinkling guide device according to claim 1, characterized in that, The elastic band wrinkling guide device further includes an adjusting member connected to the pressure plate, the first layer plate, and the second layer plate, and the adjusting member is configured to adjust the distance between the pressure plate and the first layer plate and the second layer plate.

4. The elastic band wrinkling guide device according to claim 3, characterized in that, The first layer plate is provided with a first adjustment hole, and the second layer plate is provided with a second adjustment hole corresponding to the first adjustment hole, and the first adjustment hole and the second adjustment hole are in communication; The pressure plate is provided with a third adjustment hole corresponding to the second adjustment hole. The third adjustment hole is connected to the second adjustment hole. The first adjustment hole, the second adjustment hole and the third adjustment hole are configured to allow the adjustment member to pass through, so as to adjust the pressure plate and the first layer plate and the second layer plate.

5. The elastic band wrinkling guide device according to claim 1, characterized in that, The base plate includes two first sub-plates, which are spaced apart along a second direction to form the first guide groove and the clearance groove between the two first sub-plates; and / or The second layer plate includes two second sub-plates, which are spaced apart along the second direction to form a second guide groove between the two second sub-plates; The second direction intersects with the first direction.

6. The elastic band wrinkling guide device according to claim 5, characterized in that, The first plate includes a first part and a second part connected sequentially along the first direction. The two first parts are spaced apart in the second direction to form the first guide groove, and the two second parts are spaced apart in the second direction to form the clearance groove. Along the second direction, the width of the second part is smaller than the width of the first part, so that the width of the clearance groove in the second direction is greater than the width of the first guide groove in the second direction.

7. A rubber band wrinkling guide device according to any one of claims 1-6, characterized in that, The base plate is provided with a first fixing hole and a second fixing hole. The first fixing hole is located on one side of the clearance groove, and the second fixing hole is located on the other side of the clearance groove, corresponding to the first fixing hole. The first fixing hole and the second fixing hole are configured to fix the base plate to the sewing machine.

8. A rubber band wrinkling guide device according to any one of claims 1-6, characterized in that, The clearance groove is located at the outlet end of the first guide groove, and the clearance groove extends along the first direction; The second guide groove penetrates the second layer plate along the first direction, and the outlet end of the second guide groove is in the same direction as the outlet end of the first guide groove.

9. A rubber band wrinkling guide device according to any one of claims 1-6, characterized in that, The base plate, the first layer plate, the second layer plate, and the pressure plate are stacked sequentially in the thickness direction of the base plate, and one end face of the base plate, the first layer plate, the second layer plate, and the pressure plate are flush along the first direction.

10. A sewing machine, characterized in that, The sewing machine includes a machine base, a presser foot, and an elastic band gathering guide device as described in any one of claims 1-9, wherein the elastic band gathering guide device is disposed on the machine base, and the presser foot is disposed within the elastic band gathering guide device.

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