Tensioning device for double-needle machine

Abstract

The utility model relates to the technical field of double-needle machines, in particular to a tensioning device for a double-needle machine, which comprises a machine base and a machine body arranged on the machine base, the machine body is used for double-needle sewing, the machine base is provided with a positioning block, the positioning block is provided with a positioning rod, and the positioning rod is rotatably provided with an expanding roller. The sewing machine has the effect of improving sewing convenience.

Description

TECHNICAL FIELD

[0001] The utility model relates to double needle machine technical field especially a kind of tensioning device for double needle machine. BACKGROUND

[0002] Double needle machine is double needle sewing machine (also called double needle flat car), and it is a kind of commonly used sewing machine with two needles, two synchronization, three synchronization, corner turning and the effect of double line parallel and parallel to each other, but it is essential, although flat car can sometimes replace double needle, consider efficiency in batch production, use flat car to do the work of double needle, unless small production, double needle efficiency is high, and double line is parallel and neat and beautiful.

[0003] But when the edge of the hole part of trousers, sleeves and other garments needs to be sewn, the staff needs to manually prop open the barrel and maintain the propped open and tensioned state during sewing to avoid the folding and wrinkling of the garment barrel affecting sewing, resulting in very inconvenient sewing use. INVENTION CONTENTS

[0004] In order to improve the convenience of sewing, the application provides a tensioning device for double needle machine.

[0005] The tensioning device for double needle machine provided by the application adopts the following technical scheme:

[0006] A tensioning device for double needle machine, comprising a machine base and a machine body provided on the machine base, the machine body is used for double needle sewing, the machine base is provided with a positioning block, the positioning block is provided with a positioning rod, and the positioning rod is rotatably provided with a propping roller.

[0007] By adopting the above technical scheme, the garment barrel is sleeved on the propping roller to prop open the barrel, reduce the possibility of wrinkling during sewing of the garment barrel, and then sew by the machine body, which is simple to operate and does not need the staff to manually prop open during sewing, thereby improving the convenience of sewing.

[0008] As a preferred, the positioning rod is rotatably arranged on the positioning block, the positioning block is provided with a positioning plate, the positioning plate is provided with a rotating groove, the positioning rod is provided with a rotating screw, the rotating screw is inserted into the rotating groove and can move in the rotating groove, the rotating screw is sleeved with a rotating nut, the rotating nut is threadedly connected with the rotating screw and abuts against the positioning plate.

[0009] By adopting the technical scheme, the rotating nut is loosened, the clothing barrel portion is sleeved on the opening roller, the rotating rod is pushed to rotate in the rotating groove, the positioning rod can be stably driven to rotate, the opening roller is driven to move, the rotating nut is tightened again so that the rotating nut abuts against the positioning plate, the operation is simple and convenient, the movement range of the opening roller is increased, the opening tension device can be used for opening of clothing barrel portions of different specifications, and the applicability is improved.

[0010] Preferably, the positioning rod is provided with a sliding groove, the opening roller is rotationally provided with a sliding block, the sliding block is inserted into the sliding groove and can slide in the sliding groove, a first locking assembly is arranged between the opening roller and the positioning rod, and the first locking assembly is used for locking the opening roller.

[0011] By adopting the technical scheme, the sliding block slides in the sliding groove, the opening roller is locked by the first locking assembly, the position of the opening roller on the positioning rod is changed, and the applicability for clothing barrel portions of different specifications is further improved.

[0012] Preferably, the first locking assembly comprises a locking screw rod and a locking nut, the locking screw rod is arranged on the sliding block, the locking nut is sleeved on the locking screw rod and is in threaded connection with the locking screw rod, and the locking nut abuts against the positioning rod.

[0013] By adopting the technical scheme, the locking nut is tightened, the locking nut moves on the bolt screw rod and abuts against the positioning rod, the opening roller is locked, the operation is simple and convenient, and the convenience of use is improved.

[0014] Preferably, the positioning block is provided with a movement groove, a movement block is slidingly arranged in the movement groove, the positioning rod is arranged on the movement block, a second locking assembly is arranged between the positioning block and the movement block, and the second locking assembly is used for locking the movement block.

[0015] By adopting the technical scheme, the movement block slides in the movement groove to move the opening roller, the movement block is locked by the second locking assembly, the operation is simple and convenient, the movement range of the opening roller is increased, the opening tension of clothing barrel portions of different specifications is facilitated, and the applicability is improved.

[0016] Preferably, the second locking assembly comprises a locking block and a locking clamping block, the locking clamping block is rotationally arranged on the movement block, the locking block is arranged on the positioning block, and the locking block is provided with a plurality of locking clamping grooves for inserting the locking clamping block.

[0017] By adopting the technical scheme, when the movement block needs to be locked after being moved to a suitable position, the locking clamping block is rotated to be inserted into the locking clamping groove of the locking hole, locking is completed, the operation is simple and convenient, and the convenience of use is improved.

[0018] Preferably, the moving block is provided with an assembly groove, and the locking block is rotatably arranged in the assembly groove.

[0019] By using the above technical scheme, the locking block is rotatably inserted into the assembly groove, so as to improve the stability of the rotation and fixation of the locking block, reduce the possibility of accidental contact of the locking block with the moving block due to shaking or impact, and improve the stability of the locking.

[0020] Preferably, the locking block is provided with a handle.

[0021] By using the above technical scheme, the handle is arranged, so as to improve the convenience of the rotation of the locking block and improve the convenience of use.

[0022] In summary, the present application has at least one of the following beneficial technical effects:

[0023] 1. By arranging the base, the body, the positioning block, the positioning rod, the spreading roller, the positioning plate, the rotating groove, the rotating screw and the rotating nut, the rotating nut on the positioning block is loosened, the rotating screw is pushed to move in the rotating groove of the positioning plate to a suitable position, and then the rotating nut is tightened, so as to adjust the position of the spreading roller, the waist tube part or the leg tube part of the garment is sleeved on the spreading roller, the garment is pulled tight by the spreading roller, and then sewing is performed by the body on the base, so that manual pulling and tightening of the garment are not needed, and the convenience of sewing is improved.

[0024] 2. By arranging the sliding groove, the sliding block, the locking screw and the locking nut, the sliding block is pushed to slide in the sliding groove, so as to adjust the position of the spreading roller on the positioning rod, and after the spreading roller moves to a suitable position, the locking nut on the locking screw is tightened, so that the locking nut abuts against the positioning rod, thereby locking and fixing the spreading roller, so that the operation is simple and convenient, the position of the spreading roller is conveniently adjusted, the moving range and the spreading area of the spreading roller are increased, and the device is suitable for garments of different specifications.

[0025] 3. By arranging the moving groove, the moving block, the locking block, the locking block and the locking groove, after the moving block is pushed to move to a suitable position in the moving groove, the locking block is rotated and inserted into the locking groove of the locking block, so as to complete the locking of the moving block, the operation is simple and convenient, and the device is convenient and easy to use. At the same time, the moving range of the spreading roller is increased by the movement of the moving block, so that the moving range and the spreading area of the spreading roller are increased, and the device is suitable for garments of different specifications and has increased applicability. BRIEF DESCRIPTION OF DRAWINGS

[0026] Fig. 1 is a whole schematic view of a tensioning device for a double-needle machine provided by an embodiment of the present application.

[0027] Fig. 2 is a sectional view showing the connection relationship between the positioning plate and the positioning column.

[0028] Fig. 3 is a sectional view for embodying the locking assembly structure.

[0029] Explanation of reference numerals: 1, machine base; 11, machine body; 2, positioning block; 21, moving groove; 211, connecting spring; 22, moving block; 221, assembling groove; 23, positioning rod; 231, sliding groove; 24, positioning plate; 241, rotating groove; 242, rotating screw; 243, rotating nut; 3, spreading roller; 31, sliding block; 311, auxiliary block; 4, first locking assembly; 41, locking screw; 42, locking nut; 5, second locking assembly; 51, locking block; 511, locking clamping groove; 52, locking clamping block; 521, handle; 53, clamping tooth. DETAILED DESCRIPTION

[0030] The following will be described in detail with reference to the accompanying drawings. Figs. 1-3 The present application is further described in detail.

[0031] The embodiments of the present application disclose a tensioning device for a double-needle machine. Referring to Figs. 1 to 3 It comprises a machine base 1 and a machine body 11 fixedly arranged on the machine base 1, and the machine body 11 is used for double-needle sewing. The machine base 1 is provided with a long strip-shaped positioning block 2 arranged below the needle head of the machine body 11, and two positioning rods 23 are rotatably arranged on the positioning block 2 and arranged on both sides of the machine body 11, and two spreading rollers 3 are rotatably arranged on the positioning rods 23. A positioning plate 24 is fixedly arranged on the positioning block 2, and the positioning plate 24 is located between the positioning block 2 and one of the positioning rods 23 and is rotatably connected with the positioning rod 23, the positioning rod 23 abuts against the side wall of the positioning plate 24, the positioning plate 24 is provided with an arc-shaped rotating groove 241 penetrating through the positioning plate 24, the positioning rod 23 is provided with a rotating screw 242, the rotating screw 242 is inserted into the rotating groove 241 and can slide in the rotating groove 241, and a rotating nut 243 is sleeved on the rotating screw 242, the rotating nut 243 is threadedly connected with the rotating screw 242 and abuts against the side wall of the positioning plate 24 away from the positioning rod 23. The tubular part of the garment is sleeved on the spreading roller 3, so that the garment is spread and tensioned and maintained, and manual tensioning of the staff during sewing is not needed, and the convenience of sewing is improved.

[0032] In order to improve the applicability, referring to Fig. 2 and Fig. 3The positioning rod 23 is provided with a sliding groove 231 penetratingly arranged thereon, and the spreading roller 3 is rotatably provided with a sliding block 31 at one end. The sliding block 31 is adapted to be inserted into the sliding groove 231 and can slide in the sliding groove 231. A circular auxiliary block 311 is fixedly arranged on the spreading roller 3 and abuts against the side wall of the positioning rod 23. A first locking assembly 4 for locking the spreading roller 3 is arranged between the spreading roller 3 and the positioning rod 23. The first locking assembly 4 comprises a locking screw 41 and a locking nut 42. The locking screw 41 is fixedly arranged on the side wall of the locking block 51 away from one end of the spreading roller 3. The locking nut 42 is sleeved on the locking screw 41 and is threadedly connected with the locking screw 41. The locking nut 42 abuts against the side wall of the positioning rod 23 away from the spreading roller 3. After the locking nut 42 is loosened, the sliding block 31 is pushed to slide, so that the position of the spreading roller 3 on the positioning rod 23 can be changed, thereby increasing the activity range and the spreading area of the spreading roller 3, and the applicability of the device to different specifications of clothes is improved.

[0033] In order to further improve the applicability, with reference to Fig. 1 and Fig. 3 The positioning block 2 is provided with a moving groove 21 along the length direction. An L-shaped moving block 22 is adapted to be slidingly arranged in the moving groove 21. A connecting spring 211 is fixedly arranged on the inner wall of the moving groove 21 and connects the side wall of the moving block 22 and the inner side wall of the moving groove 21. The positioning rod 23 fixedly arranged on the moving block 22 is away from the positioning plate 24. In another embodiment, the positioning rod 23 arranged on the moving block 22 can be provided with the positioning plate 24 and related structures, so that the positioning rod 23 is rotatably connected with the moving block 22. A second locking assembly 5 for locking the moving block 22 is arranged between the positioning block 2 and the moving block 22. The second locking assembly 5 comprises a locking block 51, a clamping tooth 53 and a locking clamping block 52. The moving block 22 is penetratingly provided with an assembly groove 221 communicating with the side wall. The locking clamping block 52 is rotatably arranged in the assembly groove 221. The clamping tooth 53 is arranged on the bottom wall of the locking clamping block 52. A handle 521 is fixedly arranged on the end of the locking clamping block 52 away from the clamping tooth 53. The locking block 51 is fixedly arranged on the positioning block 2. The surface of the locking block 51 is obliquely provided with a plurality of locking clamping grooves 511. The locking clamping block 52 can be adapted to be inserted into the locking clamping grooves 511. After the moving block 22 is slid to the appropriate position, the locking clamping block 52 is rotated to make the clamping tooth 53 inserted into the locking clamping groove 511, so that the position of the positioning rod 23 is changed, the activity range and the spreading area of the spreading roller 3 are increased, and the applicability of the device to different specifications of clothes is further improved.

[0034] The implementation principle of the tension device for the double-needle machine is as follows: according to the required specifications of the garment tube to be sewn, the locking block 52 is rotated to make the clamping teeth 53 disengage from the locking clamping grooves 511, the moving block 22 is pushed to slide to the appropriate position, the locking block 52 is rotated to make the clamping teeth 53 insert into the corresponding locking clamping grooves 511, the rotating bolt is loosened, the positioning rod 23 is pushed to rotate to the appropriate position, the rotating bolt is tightened, the locking bolt is loosened, the sliding block 31 is pushed to slide to the appropriate position, so that the position of the opening roller 3 on the positioning rod 23 is adjusted, and then the garment tube is sleeved on the opening roller 3 to open and tighten the garment tube, so that the garment tube is not manually opened and tightened during the sewing process, and the convenience of sewing is improved.

[0035] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: any equivalent changes made according to the structure, shape, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A tensioning device for use on a double needle machine, characterised in that: The utility model provides a double needle sewing machine, including base (1) and the body (11) of setting on base (1), the body (11) is used for carrying out double needle sewing, base (1) is provided with positioning block (2), positioning block (2) is provided with positioning rod (23), positioning rod (23) is provided with the prop open roller (3) rotationally.

2. A tensioning device for use on a double needle machine as claimed in claim 1, characterized in that: The positioning rod (23) is rotationally arranged on the positioning block (2), and the positioning block (2) is provided with a positioning plate (24), the positioning plate (24) is provided with a rotating groove (241), the positioning rod (23) is provided with a rotating screw (242), the rotating screw (242) is inserted into the rotating groove (241) and can move in the rotating groove (241), and the rotating screw (242) is sleeved with a rotating nut (243), the rotating nut (243) is threadedly connected with the rotating screw (242) and abuts against the positioning plate (24).

3. A tensioning device for use on a double needle machine as claimed in claim 1, characterized in that: The positioning rod (23) is provided with a sliding groove (231), the prop open roller (3) is rotationally provided with a sliding block (31), the sliding block (31) is inserted into the sliding groove (231) and can slide in the sliding groove (231), and a first locking assembly (4) is arranged between the prop open roller (3) and the positioning rod (23), the first locking assembly (4) is used for locking the prop open roller (3).

4. A tensioning device for use on a double needle machine as claimed in claim 3, characterised in that: The first locking assembly (4) includes a locking screw (41) and a locking nut (42), the locking screw (41) is arranged on the sliding block (31), the locking nut (42) is sleeved on the locking screw (41) and is threadedly connected with the locking screw (41), and the locking nut (42) abuts against the positioning rod (23).

5. A tensioning device for use on a double needle machine as defined in claim 1, wherein: The positioning block (2) is provided with a moving groove (21), the moving groove (21) is slidably provided with a moving block (22), the positioning rod (23) is arranged on the moving block (22), and a second locking assembly (5) is arranged between the positioning block (2) and the moving block (22), the second locking assembly (5) is used for locking the moving block (22).

6. A tensioning device for use on a double needle machine as claimed in claim 5, characterised in that: The second locking assembly (5) includes a locking block (51) and a locking clamping block (52), the locking clamping block (52) is rotationally arranged on the moving block (22), the locking block (51) is arranged on the positioning block (2), and the locking block (51) is provided with a plurality of locking clamping grooves (511) for inserting the locking clamping block (52).

7. A tensioning device for use on a double needle machine as claimed in claim 6, characterised in that: The moving block (22) is provided with an assembly groove (221), and the locking clamping block (52) is rotationally arranged in the assembly groove (221).

8. A tensioning device for use on a double needle machine as claimed in claim 6, characterized in that: The locking clamping block (52) is provided with a handle (521).

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