Three-wire presser foot

Abstract

The utility model relates to the technical field of sewing equipment, and discloses a three-line presser foot which comprises a presser foot body, a second feeding hole is formed in the front side of the outer wall of the presser foot body, a first feeding hole is formed in the right side of the outer wall of the presser foot body, and a hollow plate is fixedly connected to the front side of the outer wall of the second feeding hole. And long hollow blocks are fixedly connected to the left sides of the outer walls of the two first feeding holes and the left sides of the outer walls of the second feeding holes correspondingly, first threaded columns penetrate through the interiors of the long hollow blocks, the outer walls of the first threaded columns are in threaded connection with moving blocks, pressing blocks are fixedly connected to the left sides of the outer walls of the moving blocks, and fixing rods are fixedly connected to the lower middle portions of the inner walls of hollow plates. According to the device, the first threaded column is rotated to drive the moving block on the outer wall to be adjusted up and down, processed cloth is fixed, the bottom of the cloth can flatten and clamp the cloth on the rolling column on the outer wall of the fixing rod on the inner wall of the hollow plate, and therefore the problem that the cloth is dislocated in the sewing process is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing equipment technical field especially relates to a three thread presser foot. BACKGROUND

[0002] Three thread presser foot is a kind of special accessory of sewing machine, mainly applied to three thread overlock machine, it plays a vital role in the sewing process, through the coordinated work with sewing machine, the edge of cloth is handled by overlock, makes cloth edge neat and beautiful, and can effectively prevent the yarn of cloth edge from opening.

[0003] In the clothing manufacturing industry, home textile industry and leather products field, since the need for multi-layer sewing of cloth, leather and gauze during processing and production, a three thread presser foot is used to sew different cloths through three thread presser foot, so that clothes are more durable and the edge is more neat and beautiful.

[0004] The existing three thread presser foot needs to be pulled flat by the operator after the multi-layer cloth is pulled flat, and then sewing is carried out, which increases the operation difficulty, and the multi-layer cloth is prone to misalignment during sewing, so that the product after sewing cannot meet the expected requirements, thereby increasing the additional production cost. UTILITY MODEL CONTENTS

[0005] In order to make up for the above shortcomings, the utility model provides a three thread presser foot, which aims at improving the problem that the waste is caused by the misalignment of multi-layer cloth during sewing in the prior art.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme: a three thread presser foot, comprising a presser foot main body, a feed hole two is formed in the front side of the outer wall of the presser foot main body, a feed hole one is formed in the right side of the outer wall of the presser foot main body, the outer wall of the feed hole two is fixedly connected with a hollow plate, two feed hole one and feed hole two The outer wall left side is fixedly connected with an elongated hollow block, a threaded column one is penetrated in the inside of the elongated hollow block, the outer wall of the threaded column one is threadedly connected with a moving block, the outer wall left side of the moving block is fixedly connected with a pressing block, the inner wall middle lower part of the hollow plate is fixedly connected with a fixed rod, the outer wall of the fixed rod is rotatably connected with a rolling column, the outer wall left and right sides of the presser foot main body are installed with a fixing mechanism, and the fixing mechanism is used to increase the contact area with the sewing cloth.

[0007] Through the above technical scheme: by putting cloth into the feed hole one and the feed hole two, then rotating the threaded column one inside the long hollow block on the left side of the outer wall in turn, the threaded column one will drive the moving block connected by threads on the outer wall to adjust up and down at the same time, and the moving block will drive the pressing block on the left side of the moving block to fix the processed cloth; the bottom of the cloth will be flattened and clamped on the rolling column outside the fixed rod on the inner wall of the hollow plate.

[0008] As a further description of the above technical scheme:

[0009] The fixing mechanism comprises a U-shaped hollow piece, a fixed long column rotatably connected inside the U-shaped hollow piece, a U-shaped plate fixedly connected to the outer wall of the fixed long column, a long sliding groove plate fixedly connected to the outer wall left side of the U-shaped plate, a sliding block slidingly connected inside the long sliding groove plate, a hollow inner sawtooth plate fixedly connected to the other side of the sliding block, a hollow support fixedly connected to the outer wall left side of the U-shaped hollow piece, a fixed square piece slidingly connected inside the hollow support, a spring fixedly connected to the adjacent side of the fixed square piece, and a pawl fixedly connected to the rear side of the outer wall of the fixed square piece.

[0010] Through the above technical scheme: by rotating the U-shaped plate outside the fixed long column, then sliding the hollow inner sawtooth plate to the bottom of the hollow support, and finally pressing the fixed square piece inside the hollow support to make the spring contract, when the position of the inner sawtooth plate is adjusted by sliding, the fixed square piece is released to make the pawl on the rear side engage with the sawtooth inside the inner sawtooth plate, increasing the contact area with the cloth.

[0011] As a further description of the above technical scheme:

[0012] The top of the presser foot body is provided with a bulb, and the bulb is electrically connected with the presser foot body.

[0013] Through the above technical scheme: the bulb installed on the top of the presser foot body can play the role of auxiliary lighting.

[0014] As a further description of the above technical scheme:

[0015] The rear side of the outer wall of the presser foot body is fixedly connected with a hollow ring, and a plurality of long blocks are fixedly connected at equal intervals on the rear side of the outer wall of the hollow ring.

[0016] Through the above technical scheme: the hollow ring on the rear side of the outer wall of the presser foot body can facilitate the installation of the presser foot body.

[0017] As a further description of the above technical scheme:

[0018] The middle part of the long block is threadedly connected with a screw two, and the outer wall of the screw two is threadedly connected with a nut.

[0019] Through the technical scheme, the screw two in the middle of the long hollow block can reinforce the main body of the presser foot.

[0020] Further description is made to the technical scheme:

[0021] The outer wall top of the rolling column is threadedly connected with a screw three, and the outer wall of the screw three is threadedly connected with an anti-skid strip.

[0022] Through the technical scheme, the anti-skid strip on the outer wall top of the rolling column can increase the contact area between the rolling column and the cloth.

[0023] Further description is made to the technical scheme:

[0024] The top of the feeding hole two is provided with a sliding groove, and the sliding groove is slidably connected with a screw one.

[0025] Through the technical scheme, the screw one in the sliding groove at the top of the feeding hole two can facilitate disassembly of the presser foot and the feeding hole two.

[0026] Further description is made to the technical scheme:

[0027] The outer wall of the nut is fixedly connected with a screwing block, the outer wall left side of the screwing block is fixedly connected with a fixed short rod, and the outer wall of the fixed short rod is fixedly connected with a protective sleeve.

[0028] Through the technical scheme, the screwing block on the outer wall of the nut can facilitate screwing of the nut.

[0029] The utility model has the advantages of the following:

[0030] 1. In the utility model, the threaded column one in the long hollow block left side of the outer wall is rotated in sequence to drive the moving block of the outer wall to be adjusted up and down, the pressing block left side of the moving block fixes the processed cloth, the bottom of the cloth is flattened and clamped on the rolling column of the fixed rod outer wall of the hollow plate inner wall, and the problem of misalignment of the cloth in the sewing process is avoided.

[0031] 2. In the utility model, the U-shaped plate is rotated out and then slid to the bottom of the hollow support, the fixed square piece is loosened after the position of the inner sawtooth plate is slid and adjusted, the teeth of the inner sawtooth plate are clamped, the contact area with the cloth is increased, and the effect of fixing the cloth is realized. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 A perspective view of a three-thread presser foot is provided for the utility model;

[0033] Figure 2A front view of a three-line presser foot is provided in the utility model;

[0034] Figure 3 A rear view of a three-line presser foot is provided in the utility model;

[0035] Figure 4 A partial structure schematic view of a three-line presser foot is provided in the utility model;

[0036] Figure 5 A fixed mechanism split view of a three-line presser foot is provided in the utility model.

[0037] Legend:

[0038] 1, presser foot main body; 2, fixed mechanism; 201, U-shaped hollow piece; 202, U-shaped plate; 203, fixed long column; 204, hollow inner sawtooth plate; 205, sliding block; 206, long sliding slot plate; 207, hollow support; 208, fixed square piece; 209, spring; 210, clamping tooth; 3, screw one; 4, feeding hole one; 5, sliding groove; 6, feeding hole two; 7, hollow plate; 8, fixed short rod; 9, twisting block; 10, screw two; 11, long block; 12, hollow ring; 13, bulb; 14, rolling column; 15, screw three; 16, anti-skid strip; 17, threaded column one; 18, protective sleeve; 19, nut; 20, pressing block; 21, moving block; 22, long hollow block; 23, fixed rod. Specific implementation

[0039] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0040] Reference Figure 1 , Figure 3 and Figure 4The utility model provides an embodiment: a three -wire presser foot, including presser foot main part 1, the outer wall front side of presser foot main part 1 is equipped with feed hole two 6, the outer wall right side of presser foot main part 1 is equipped with feed hole one 4, the outer wall front side of feed hole two 6 is fixedly connected with hollow board 7, plays the role of fixing, the outer wall left side of two feed hole one 4 and feed hole two 6 is fixedly connected with long hollow block 22, plays the role of fixing, the inside of long hollow block 22 is penetrated with threaded column one 17, the outer wall of threaded column one 17 is connected with moving block 21, plays the role of moving, the outer wall left side of moving block 21 is fixedly connected with press block 20, the inner wall middle lower part of hollow board 7 is fixedly connected with fixed rod 23, plays the role of fixing, the outer wall of fixed rod 23 is rotatably connected with rolling column 14, plays the role of rolling and smoothing cloth, the outer wall left and right sides of presser foot main part 1 are installed with fixed mechanism 2, and fixed mechanism 2 is used to increase the contact area with the stitched cloth, the top of presser foot main part 1 is installed with bulb 13, and bulb 13 is electrically connected with presser foot main part 1, and the bulb 13 installed on the top of presser foot main part 1 can play the role of auxiliary lighting, the outer wall rear side of presser foot main part 1 is fixedly connected with hollow ring 12, a plurality of long blocks 11 are fixedly connected with the outer wall rear side of hollow ring 12 at equal intervals, and the hollow ring 12 of the outer wall rear side of presser foot main part 1 can be conveniently installed presser foot main part 1;

[0041] Specifically, by putting the cloth into feed hole one 4 and feed hole two 6, then rotating the threaded column one 17 inside the long hollow block 22 on the left side of the outer wall in sequence, the threaded column one 17 will drive the moving block 21 threadedly connected to the outer wall to adjust up and down while rotating, at the same time, the moving block 21 will drive the press block 20 on the left side of the moving block 21 to fix the processed cloth; the bottom of the cloth will be smoothed and clamped on the rolling column 14 on the outer wall of the fixed rod 23 in the inner wall of the hollow board 7, the top of the presser foot main part 1 is installed with the bulb 13, and the bulb 13 is electrically connected with the presser foot main part 1, and the bulb 13 installed on the top of the presser foot main part 1 can play the role of auxiliary lighting, the outer wall rear side of the presser foot main part 1 is fixedly connected with the hollow ring 12, a plurality of long blocks 11 are fixedly connected with the outer wall rear side of the hollow ring 12 at equal intervals, and the hollow ring 12 of the outer wall rear side of the presser foot main part 1 can be conveniently installed presser foot main part 1.

[0042] Refer to Figure 1 、 Figure 2 and Figure 5The fixing mechanism 2 comprises a U-shaped hollow piece 201 installed on the left and right sides of the outer wall of the presser foot body 1, the inside of the U-shaped hollow piece 201 is rotationally connected with a fixed long column 203, the outer wall of the fixed long column 203 is fixedly connected with a U-shaped plate 202, the outer wall left side of the U-shaped plate 202 is fixedly connected with an elongated sliding groove plate 206, the inside of the elongated sliding groove plate 206 is slidingly connected with a sliding block 205, the other side of the sliding block 205 is fixedly connected with a hollow inner sawtooth plate 204, the outer wall left side of the U-shaped hollow piece 201 is fixedly connected with a hollow support 207, the inside of the hollow support 207 is slidingly connected with a fixed square piece 208 on the upper and lower sides, the adjacent side of the fixed square piece 208 is fixedly connected with a spring 209, the outer wall rear side of the fixed square piece 208 is fixedly connected with a clamping tooth 210, the middle part of the elongated block 11 is threadedly connected with a screw two 10, the outer wall of the screw two 10 is threadedly connected with a nut 19, the screw two 10 in the middle part of the elongated block 11 can play a role in reinforcing the presser foot body 1, the outer wall top of the rolling column 14 is threadedly connected with a screw three 15, the outer wall of the screw three 15 is threadedly connected with an anti-skid strip 16, and the anti-skid strip 16 on the outer wall top of the rolling column 14 can increase the contact area of the rolling column 14 and the cloth.

[0043] Specifically, the fixed long column 203 in the U-shaped hollow piece 201 is rotated to the outside of the U-shaped plate 202 on the outer wall of the fixed long column 203, then the hollow inner sawtooth plate 204 on the other side of the sliding block 205 in the sliding elongated sliding groove plate 206 is slid to the bottom of the hollow support 207, and finally the fixed square piece 208 in the hollow support 207 is pressed to make the spring 209 contract; when the position of the hollow inner sawtooth plate 204 is slid and adjusted, the clamping tooth 210 on the rear side is released from the pressing of the fixed square piece 208 to be clamped with the sawtooth in the hollow inner sawtooth plate 204, the elongated block 11 is threadedly connected with the screw two 10, the outer wall of the screw two 10 is threadedly connected with the nut 19, the screw two 10 in the middle part of the elongated block 11 can play a role in reinforcing the presser foot body 1, the outer wall top of the rolling column 14 is threadedly connected with the screw three 15, the outer wall of the screw three 15 is threadedly connected with the anti-skid strip 16, and the anti-skid strip 16 on the outer wall top of the rolling column 14 can increase the contact area of the rolling column 14 and the cloth.

[0044] Referring to Figure 1 and Figure 2The top of the feeding hole two 6 is provided with a sliding groove 5, and a screw one 3 is slidably connected in the sliding groove 5, the screw one 3 in the sliding groove 5 at the top of the feeding hole two 6 can facilitate disassembly of the presser foot body 1 and the feeding hole two 6, the outer wall of the nut 19 is fixedly connected with a screwing block 9, the outer wall left side of the screwing block 9 is fixedly connected with a fixed short rod 8, and the screwing block 9 on the outer wall of the nut 19 can facilitate screwing of the nut 19, and the outer wall of the fixed short rod 8 is fixedly connected with a protective sleeve 18.

[0045] Specifically, the top of the feeding hole two 6 is provided with a sliding groove 5, and a screw one 3 is slidably connected in the sliding groove 5, the screw one 3 in the sliding groove 5 at the top of the feeding hole two 6 can facilitate disassembly of the presser foot body 1 and the feeding hole two 6, the outer wall of the nut 19 is fixedly connected with a screwing block 9, the outer wall left side of the screwing block 9 is fixedly connected with a fixed short rod 8, and the screwing block 9 on the outer wall of the nut 19 can facilitate screwing of the nut 19, and the outer wall of the fixed short rod 8 is fixedly connected with a protective sleeve 18.

[0046] Working principle: through the cloth is put into the feeding hole one 4 and the feeding hole two 6, then the threaded column one 17 inside the outer wall left side long hollow block 22 is rotated in turn, the threaded column one 17 is rotated at the same time and will drive the outer wall threaded connection moving block 21 to adjust up and down, at the same time, the moving block 21 will drive the pressing block 20 left side of the moving block 21 to fix the processed cloth; The bottom of the cloth will be flattened and clamped on the rolling column 14 outside the fixed rod 23 inner wall of the hollow plate 7, so as to avoid the problem of misplacement of the cloth in the sewing process;

[0047] Through the fixed long column 203 inside the U-shaped hollow piece 201, the U-shaped plate 202 outside the fixed long column 203 is rotated out, and then the sliding block 205 inside the sliding long sliding groove plate 206 is slid to the bottom of the hollow support 207, and finally the fixed square piece 208 inside the hollow support 207 is pressed to make the spring 209 contract; When the position of the hollow inner sawtooth plate 204 is adjusted, the fixed square piece 208 is loosened to make the rear clamping tooth 210 and the sawtooth inside the hollow inner sawtooth plate 204 clamped, increasing the contact area with the cloth, so as to realize the effect of fixing the cloth.

[0048] Finally, it should be pointed out that: the above-mentioned only for the preferred embodiments of the present application, and is not intended to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part of the technical features, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. A three-thread presser foot comprising a presser foot body (1), characterized in that: The outer wall front side of the presser foot body (1) is provided with an inlet hole two (6), the outer right side of the presser foot body (1) is provided with an inlet hole one (4), the outer wall front side of the inlet hole two (6) is fixedly connected with a hollow plate (7), the outer wall left side of the two inlet hole one (4) and inlet hole two (6) are fixedly connected with an elongated hollow block (22), the inside of the elongated hollow block (22) penetrates a threaded column one (17), the outer wall of the threaded column one (17) is threadedly connected with a moving block (21), the outer wall left side of the moving block (21) is fixedly connected with a pressing block (20), the inner wall middle lower part of the hollow plate (7) is fixedly connected with a fixed rod (23), the outer wall of the fixed rod (23) is rotatably connected with a rolling column (14), the outer wall left and right sides of the presser foot body (1) are provided with a fixing mechanism (2), and the fixing mechanism (2) is used to increase the contact area with the stitched cloth.

2. A three-thread presser foot according to claim 1, characterized in that: The fixing mechanism (2) comprises a U-shaped hollow piece (201), the U-shaped hollow piece (201) is installed on the outer wall left and right sides of the presser foot body (1), the inside of the U-shaped hollow piece (201) is rotatably connected with a fixed long column (203), the outer wall of the fixed long column (203) is fixedly connected with a U-shaped plate (202), the outer wall left side of the U-shaped plate (202) is fixedly connected with an elongated sliding groove plate (206), the inside of the elongated sliding groove plate (206) is slidably connected with a sliding block (205), the other side of the sliding block (205) is fixedly connected with a hollow inner sawtooth plate (204), the outer wall left side of the U-shaped hollow piece (201) is fixedly connected with a hollow support (207), the inside of the hollow support (207) is slidably connected with a fixed square piece (208) on the upper and lower sides, the adjacent side of the fixed square piece (208) is fixedly connected with a spring (209), and the outer wall rear side of the fixed square piece (208) is fixedly connected with a clamping tooth (210).

3. A three-thread presser foot according to claim 1, wherein: The top of the presser foot body (1) is provided with a bulb (13), and the bulb (13) is electrically connected with the presser foot body (1).

4. The three-thread presser foot according to claim 1, wherein: The outer wall rear side of the presser foot body (1) is fixedly connected with a hollow ring (12), and a plurality of elongated blocks (11) are fixedly connected with the outer wall rear side of the hollow ring (12) at equal intervals.

5. A three-thread presser foot according to claim 4, wherein: The middle part of the elongated block (11) is threadedly connected with a screw two (10), and the outer wall of the screw two (10) is threadedly connected with a nut (19).

6. A three-thread presser foot according to claim 1, wherein: The outer wall top of the rolling column (14) is threadedly connected with a screw three (15), and the outer wall of the screw three (15) is threadedly connected with an anti-skid strip (16).

7. The three-thread presser foot according to claim 1, wherein: The top of the inlet hole two (6) is provided with a sliding groove (5), and the inside of the sliding groove (5) is slidably connected with a screw one (3).

8. A three-thread presser foot according to claim 5, wherein: The outer wall of the nut (19) is fixedly connected with a twisting block (9), the outer wall left side of the twisting block (9) is fixedly connected with a fixed short rod (8), and the outer wall of the fixed short rod (8) is fixedly connected with a protective sleeve (18).

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