Down leakage prevention presser foot and template machine

Abstract

The utility model discloses a down leakage prevention presser foot and a template machine, the down leakage prevention presser foot comprises a presser foot body and a silica gel sleeve, the presser foot body can vertically move, and the presser foot body is provided with a first through hole which vertically extends and is used for a machine needle to vertically move to shuttle fabric; the silica gel sleeve is connected to the bottom of the presser foot body, the silica gel sleeve comprises a deformation part located below the presser foot body and used for pressing the fabric, and a first containing cavity communicated with the first through hole is formed in the inner side wall of the deformation part and used for containing the fabric extruded by the deformation part; the silica gel sleeve presses the fabric downwards, so that the middle of the fabric protrudes, the warp and the weft are tensioned, the resistance of filler in the fabric in the process of moving out of the fabric is increased, and the warp and weft tensioning degree of the fabric continues to be increased through deformation of the deformation part on the basis that the silica gel sleeve presses the fabric; the resistance of the filler in the fabric in the process of moving out of the fabric is further increased, leakage of down feather is more effectively avoided, the down leakage prevention effect is improved, and the problem that the down feather leaks out of the fabric can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to textile machinery technical field, especially relate to a leakproof down presser foot and template machine. BACKGROUND

[0002] In the field of textile machinery technology, the field of mechanical automation control and the field of textile manufacturing technology, the sewing machine is one of the important equipment. Especially in the process of sewing down jacket, due to the lightness and fluffiness of down, the traditional template machine often has the problem of down leakage when sewing down fabric, which not only affects the processing quality of down jacket, but also increases the production cost.

[0003] Therefore, how to solve the problem of down leakage is a technical problem that needs to be solved by the technical personnel in the field at present. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a leakproof down presser foot, which can solve the problem of down leakage.

[0005] To achieve the above-mentioned purpose, the utility model provides a leakproof down presser foot, which comprises:

[0006] The presser foot body can be vertically moved, and the presser foot body is provided with a first through hole extending vertically, which is used for the vertical movement of the needle to shuttle the fabric;

[0007] The silica gel sleeve is connected to the bottom of the presser foot body, and the silica gel sleeve comprises a deformation part below the presser foot body, which is used for compressing the fabric, and the inner side wall of the deformation part forms a first accommodating cavity connected to the first through hole, which is used for accommodating the fabric extruded by the deformation part.

[0008] Preferably, the bottom of the deformation part can be deformed towards the direction away from the central axis of the first accommodating cavity.

[0009] Preferably, the inner side wall of the deformation part is a first conical surface, the first conical surface comprises a first end with a larger cross-sectional diameter and a second end with a smaller cross-sectional diameter, and the first end is located at the end of the first conical surface away from the presser foot body.

[0010] Preferably, the presser foot body comprises an extension part and a limiting part provided with the first through hole, the bottom of the limiting part is provided with a first abutting surface, the extension part is connected to the first abutting surface and located below the limiting part, the inside of the extension part is provided with a second accommodating cavity connected to the first through hole, and the outer periphery of the extension part is provided with a protrusion.

[0011] The silica gel sleeve further comprises a connecting part connected to the deformation part, the connecting part is provided with a groove matched with the protrusion, so that the silica gel sleeve is clamped to the presser foot body, and the first accommodating cavity is connected to the second accommodating cavity.

[0012] Preferably, the top of the connecting portion is provided with a second abutting surface, and the second abutting surface is capable of abutting against the first abutting surface.

[0013] Preferably, the outer circumferential surface of the silica gel sleeve is a second tapered surface, and the second tapered surface comprises a third end with a larger cross-sectional diameter and a fourth end with a smaller cross-sectional diameter, and the fourth end is located at one end of the second tapered surface away from the limiting portion.

[0014] Preferably, the taper of the first tapered surface is greater than the taper of the second tapered surface.

[0015] Preferably, the central axes of the first through hole, the first accommodating cavity and the second accommodating cavity are in the same direction.

[0016] Preferably, the silica gel sleeve is of an integral structure.

[0017] A template machine comprises the leakage-proof plush presser foot according to any one of the above.

[0018] With respect to the background art, the leakage-proof plush presser foot comprises a presser foot body and a silica gel sleeve, the presser foot body is vertically movable, and the presser foot body is provided with a first through hole extending vertically for allowing a needle to vertically move to shuttle through a fabric; the silica gel sleeve is connected to the bottom of the presser foot body, and the silica gel sleeve comprises a deformation portion located below the presser foot body for pressing the fabric, and an inner side wall of the deformation portion forms a first accommodating cavity communicated with the first through hole for accommodating the fabric extruded by the deformation portion.

[0019] Specifically, by connecting the silica gel sleeve to the bottom of the presser foot body, the silica gel sleeve presses the fabric downward, so that the fabric is raised in the middle and the warp and weft are tensioned, and the resistance of the filling in the fabric to move out of the fabric is increased; the silica gel sleeve comprises the deformation portion located below the presser foot body, and the tensioning degree of the warp and weft of the fabric is further increased by the deformation of the deformation portion based on the pressing of the silica gel sleeve, so that the resistance of the filling in the fabric to move out of the fabric is further increased; and the resistance is greater than the friction between the needle and the down, so that the down is more effectively prevented from leaking out, the effect of preventing the down from leaking out is improved, and the problem of the down leaking out of the fabric is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0021] Figure 1 The structure diagram of the leakage-proof plush presser foot provided by the embodiments of the present application;

[0022] Figure 2 Another perspective view of the structure of the leak-proof down presser foot provided by the embodiment of the present application is shown in the figure.

[0023] Figure 3 For Figure 2 The sectional view along A-A.

[0024] Figure 4 The structure schematic diagram of the silica gel sleeve when deforming is provided by the embodiment of the present application.

[0025] Figure 5 The structure sectional view of the presser foot body provided by the embodiment of the present application.

[0026] Among them:

[0027] 100-presser foot body, 110-first through hole, 120-machine needle, 130-fabric, 140-extension, 141-second accommodating cavity, 142-protrusion, 150-limiting part, 151-first abutting surface;

[0028] 200-silica gel sleeve, 210-deformation part, 211-first tapered surface, 212-first accommodating cavity, 220-connection part, 230-second tapered surface. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to 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 creative labor fall within the protection scope of the present application.

[0030] In order to make the person skilled in the art better understand the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0031] In the description of the present application, it should be understood that the terms "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the position or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the present application.

[0032] The purpose of the present application is to provide a leak-proof down presser foot, which can solve the problem of down leakage.

[0033] Please refer to Figures 1 to 5To achieve the above object, the utility model provides a leakproof down presser foot, including presser foot body 100 and silica gel cover 200, presser foot body 100 can be driven under the vertical movement of cylinder, and presser foot body 100 is equipped with the first through -hole 110 of vertical extension, is used for the vertical movement of machine needle 120 to shuttle fabric 130;Silica gel cover 200 is connected to the bottom of presser foot body 100, and silica gel cover 200 includes the deformation part 210 below presser foot body 100 to be used for the compression of fabric 130, the inner side wall of deformation part 210 forms the first containing cavity 212 that is communicated with the first through -hole 110 to be used for containing the fabric 130 that is extruded by deformation part 210, and the bottom of deformation part 210 can be deformed towards the direction of the central axis away from the first containing cavity 212 (as shown in the direction of C in the attached Figure 4

[0034] Wherein, deformation part 210 is annular structure, when the bottom of deformation part 210 is pressed fabric 130 or cloth, will make down filling material deformation, thus make silica gel cover 200 compress downward, make down filling material rise in the middle, in this process, deformation part 210 and fabric 130 or cloth relative sliding, the position of fabric 130 or cloth that is pressed fabric 130 or cloth is pulled tight (as shown in the direction of F in the attached Figure 4 When the F resistance is greater than the F friction between machine needle 120 and down, can avoid the leakage of down. When presser foot body 100 is lifted and leaves fabric 130 or cloth in the process of machine needle 120 back and up, silica gel cover 200 has deformation recovery process and leaves fabric 130 or cloth later than presser foot body 100, can avoid the down that is taken out when the sewing thread passes through fabric 130 or cloth.

[0035] The following content is uniformly explained with fabric 130, to facilitate understanding, but replacing fabric as cloth is also feasible, and also falls within the protection scope of the utility model.

[0036] It needs to be explained that the silica gel cover 200 of appropriate thickness is selected, is installed on the existing presser foot body 100, and the thickness range of silica gel cover 200 is 1mm to 5mm, and preferably the thickness is 3mm. The material of silica gel cover 200 can adopt food -grade silica gel, has good elasticity and wear resistance.

[0037] ​The silicone sleeve 200 is connected to the bottom of the presser foot body 100. The silicone sleeve 200 is used to press the fabric 130, so that the middle protrusion 142 of the fabric 130 and the warp and weft threads are tensioned, and the resistance of the filling in the fabric 130 to move out of the fabric 130 is increased. The silicone sleeve 200 includes a deformation part 210 located below the presser foot body 100. On the basis of the silicone sleeve 200 pressing the fabric 130, the deformation part 210 is deformed to further increase the tension of the warp and weft threads of the fabric 130, and further increase the resistance of the filling in the fabric 130 to move out of the fabric 130. The resistance is greater than the frictional force between the machine needle 120 and the down, so that the down is more effectively prevented from leaking out. During the lifting of the presser foot body 100 away from the fabric 130 in the process of the machine needle 120 rising, the silicone sleeve 200 has a deformation recovery process, which makes the silicone sleeve 200 leave the fabric 130 later than the presser foot body 100. The down can be prevented from being carried out by the sewing thread when the sewing thread passes through the fabric 130, and the effect of preventing the down from leaking is improved. The problem of the down leaking out of the fabric 130 is solved.

[0038] The specific process is as follows: install the silicone sleeve 200 to the predetermined position of the presser foot body 100; place the down fabric 130 to be sewn on the sewing machine, and ensure that the fabric 130 is flat and wrinkle-free; start the sewing machine, and the machine needle 120 starts to descend and contacts the down fabric 130. At this time, the machine needle 120 and the cotton thread both have a frictional force F with the down; when the machine needle 120 passes through the fabric 130 and rises, the fabric 130 tightly holds the machine needle 120, and there is a resistance F that is positively correlated with the tension force on the down carried out by the machine needle 120. When the resistance F is greater than the frictional force F, the down will not leak out; the presser foot body 100 starts to press down, and the silicone sleeve 200 first presses the fabric 130 to make the middle protrusion 142, increases the resistance F of the fabric 130 to the machine needle 120, and then the deformation part 210 of the silicone sleeve 200 stretches outward to further increase the tension of the fabric 130 and further increase the resistance F; when the resistance F is greater than the frictional force F, the presser foot body 100 continues to press down and tightly presses the fabric 130 to the two sides, so that the down is prevented from leaking out; during the lifting of the presser foot body 100 away from the fabric 130 in the process of the machine needle 120 rising, the silicone sleeve 200 has a deformation recovery process, which makes the silicone sleeve 200 leave the fabric 130 later than the presser foot body 100, so that the down can be prevented from being carried out by the sewing thread when the sewing thread passes through the fabric 130. The sewing machine completes the sewing work, the anti-leakage down presser foot is lifted, and the sewn down jacket is taken out. In this way, by increasing the silicone sleeve 200, the durability and service life of the anti-leakage down presser foot are improved, the structure of the anti-leakage down presser foot is simplified, the manufacturing and maintenance costs are reduced, and the problem of down leakage during the sewing of the down jacket is completely avoided, and the processing quality of the down jacket is improved.

[0039] In the embodiment, the presser body 100 comprises an extension part 140 and a limiting part 150 provided with the first through hole 110, the bottom of the limiting part 150 is provided with a first abutting surface 151, the extension part 140 is connected to the first abutting surface 151 and located below the limiting part 150, the inside of the extension part 140 is provided with a second accommodating cavity 141 communicated with the first through hole 110, and the outer periphery of the extension part 140 is provided with a protrusion 142; the silica gel sleeve 200 further comprises a connecting part 220 connected to the deforming part 210, the silica gel sleeve 200 is of an integral structure and can be integrally injection molded, the connecting part 220 is provided with a groove matched with the protrusion 142, so that the silica gel sleeve 200 is clamped to the presser body 100, and the first accommodating cavity 212 is communicated with the second accommodating cavity 141, the central axes of the first through hole 110, the first accommodating cavity 212 and the second accommodating cavity 141 are in the same extension direction, the first accommodating cavity 212 is communicated with the second accommodating cavity 141, and the space for accommodating the protrusion 142 of the fabric 130 can be increased.

[0040] It can be understood that the connecting part 220 and the extension part 140 are clamped and matched through the clamping and matching of the protrusion 142 and the groove, so that the silica gel sleeve 200 is clamped to the presser body 100, the protrusion 142 can adopt an annular protrusion, the annular protrusion and the annular groove are assembled by arranging the annular groove on the connecting part 220, the protrusion 142 can also adopt a plurality of protrusions, and the plurality of protrusions 142 are uniformly arranged along the circumference of the extension part 140, so that the connecting part 220 and the extension part 140 are clamped and matched, preferably, the protrusion 142 is located at the bottom of the extension part 140, so that there is a certain distance between the protrusion 142 and the first abutting surface 151, part of the connecting part 220 is located between the protrusion 142 and the first abutting surface 151, the contact area of the connecting part 220 and the extension part 140 is increased, the clamping effect is improved, in addition, the top of the connecting part 220 is provided with a second abutting surface, and the second abutting surface can abut against the first abutting surface 151, so that the position of the connecting part 220 is more stable.

[0041] It should be noted that the inner side wall of the deformation part 210 is a first tapered surface 211, the first tapered surface 211 comprises a first end with a larger cross-sectional diameter and a second end with a smaller cross-sectional diameter, and the first end is located at one end of the first tapered surface 211 away from the presser foot body 100; the outer peripheral surface of the silica gel sleeve 200 is a second tapered surface 230, and the second tapered surface 230 comprises a third end with a larger cross-sectional diameter and a fourth end with a smaller cross-sectional diameter, and the fourth end is located at one end of the second tapered surface 230 away from the limiting part 150; the taper of the first tapered surface 211 is greater than the taper of the second tapered surface 230, so that the thickness of the deformation part 210 gradually increases in the direction towards the presser foot body 100, which is easy for the bottom of the deformation part 210 to expand outward after being compressed, and at the same time, the deformation part 210 can have a certain structural strength to realize the compression of the fabric 130; in an embodiment, when the deformation part 210 is in a compressed state, the inner side wall of the deformation part 210 is a third tapered surface with a greater taper than the first tapered surface 211, at this time, the second tapered surface 230 is deformed into an arc surface under the extrusion.

[0042] In summary, the anti-leakage down feather presser foot provided by the utility model increases a silica gel sleeve 200 on the presser foot body 100, and the silica gel sleeve 200 is compressed downward to tension the warp and weft of the fabric 130, thereby further increasing the friction force, i.e. the F resistance, on the machine needle 120, and the F resistance is greater than the F friction between the down feather and the machine needle 120, and in the process of lifting the machine needle 120, the silica gel sleeve 200 has a deformation recovery process and leaves the fabric 130 later than the presser foot body 100, so that the down feather is prevented from being brought out by the sewing thread when the sewing thread passes through the fabric 130, thereby more effectively preventing the down feather from leaking out and improving the anti-leakage down feather effect; the structure of the anti-leakage down feather presser foot is relatively simple and does not require complex manufacturing and maintenance, so that the production cost can be greatly reduced; the silica gel sleeve 200 can be integrally injection molded, thereby avoiding the problem of complex assembly, and even if wear or damage occurs during use, the silica gel sleeve 200 can be easily repaired and replaced, thereby prolonging the service life of the anti-leakage down feather presser foot and expanding the application range of the anti-leakage down feather presser foot in the field of textile machinery technology; the presser foot operation of the anti-leakage down feather presser foot is simple and easy to control, and does not require a complex operation program, which makes it more convenient and efficient in actual use and has a broad application prospect in the field of textile machinery technology.

[0043] In addition, the application also includes a template machine, which comprises the above-mentioned anti-leakage down feather presser foot and naturally has the beneficial effects of the anti-leakage down feather presser foot.

[0044] It should be noted that in the present specification, relational terms such as first and second are used solely to distinguish one entity from another entity, without necessarily requiring or implying any actual such relationship or order between these entities.

[0045] The various embodiments are described in the specification by way of progression, each building on the last to facilitate ease of understanding. The same reference numerals are used throughout the drawings and like structure are denoted with like reference numerals.

[0046] The principles and implementation modes of the present application are described by using specific examples in the specification. The above description of the embodiments is only used to help understand the method of the present application and its core idea. It should be pointed out that, for those skilled in the art, without departing from the principles of the present application, the present application can be improved and modified in many ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A leakproof pile press foot, characterized by, The application relates to a leakage-proof pile presser, which comprises a presser body (100) vertically movable and provided with a first through hole (110) vertically extending for vertically moving a needle (120) to shuttle a fabric (130); and a silica gel sleeve (200) connected to the bottom of the presser body (100), wherein the silica gel sleeve (200) comprises a deformation part (210) below the presser body (100) for pressing the fabric (130), and an inner side wall of the deformation part (210) forms a first accommodating cavity (212) communicated with the first through hole (110) for accommodating the fabric (130) extruded by the deformation part (210). The bottom of the deformation part (210) can be deformed towards a direction away from the central axis of the first accommodating cavity (212). The inner side wall of the deformation part (210) is a first tapered surface (211) comprising a first end with a larger cross-section diameter and a second end with a smaller cross-section diameter, and the first end is located at one end of the first tapered surface (211) away from the presser body (100).

2. The leakproof pile presser according to claim 1, wherein The presser body (100) comprises an extension part (140) and a limiting part (150) provided with the first through hole (110), the bottom of the limiting part (150) is provided with a first abutting surface (151), the extension part (140) is connected to the first abutting surface (151) and located below the limiting part (150), the inside of the extension part (140) is provided with a second accommodating cavity (141) communicated with the first through hole (110), and the outer periphery of the extension part (140) is provided with a protrusion (142).

3. The leakproof pile presser according to claim 1, wherein The silica gel sleeve (200) further comprises a connecting part (220) connected to the deformation part (210), the connecting part (220) is provided with a groove matched with the protrusion (142) so that the silica gel sleeve (200) is clamped to the presser body (100), and the first accommodating cavity (212) is communicated with the second accommodating cavity (141).

4. The leakproof pile press according to claim 3, wherein, The top of the connecting part (220) is provided with a second abutting surface capable of abutting to the first abutting surface (151). The outer peripheral surface of the silica gel sleeve (200) is a second tapered surface (230) comprising a third end with a larger cross-section diameter and a fourth end with a smaller cross-section diameter, and the fourth end is located at one end of the second tapered surface (230) away from the limiting part (150).

5. The leakproof pile foot according to claim 4, wherein, The taper of the first tapered surface (211) is greater than that of the second tapered surface (230).

6. The leakproof pile foot according to claim 4, wherein, The central axes of the first through hole (110), the first accommodating cavity (212) and the second accommodating cavity (141) are in the same direction.

7. The leakproof pile foot according to claim 6, wherein, The silica gel sleeve (200) is of an integral structure.

8. The leakproof pile foot according to claim 6, wherein, The application further relates to a leakage-proof pile presser comprising any one of the above-mentioned leakage-proof pile pressers.

9. The leakproof pile foot according to any one of claims 1-8, wherein, ​ 10. A template machine characterized by, ​

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