Cloth feeding mechanism of overedger

Abstract

The utility model relates to the technical field of overedgers, and discloses an overedger cloth feeding mechanism which comprises an overedger body, a workbench is arranged on the surface of the overedger body, an inserting groove is formed in one side of the surface of the overedger body, an inserting rod is connected to the inner wall of the inserting groove in a sliding mode, a mounting plate is fixedly connected to the top end of the inserting rod, and the mounting plate is fixedly connected to the top end of the inserting rod. And feed dogs are arranged on the upper surface of the mounting plate. The inserting rod is inserted into the inserting groove, the groove is clamped into the fixing cylinder, the inner wall of the groove passes through the clamping block, the clamping block retracts inwards, then the connecting block slides into the sliding block, when the clamping groove in the groove moves to the clamping block, the clamping block can be restored to the original position under the cooperation of the spring, and therefore the clamping block can be clamped into the clamping groove, and the clamping block is prevented from being damaged. According to the feed dog mounting device, the mounting plate is fixedly mounted, and the mounting plate can be quickly dismounted through the arrangement of the dismounting mechanism, so that the feed dog can be quickly mounted or replaced, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of overlock sewing machines, and more specifically, to a cloth feeding mechanism of an overlock sewing machine. Background Art

[0002] Every time the upper shaft of the overlock sewing machine rotates one circle, the needle bar reciprocates once, and the feed dog cycles once, that is, the needle withdraws from the sewing material, the feed dog rises and moves forward, the needle pierces the sewing material, and the feed dog descends, forming a cycle action in sequence, so that during the operation of the overlock sewing machine, a feed mechanism is formed to automatically feed the cloth for the overlock sewing machine. However, the existing feed dog is installed on the mounting plate inside the overlock sewing machine by screws, which is inconvenient to install and replace the feed dog. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides a cloth feeding mechanism for an overlock sewing machine, which has the advantages of being able to quickly install or replace the cloth feeding dog, thereby improving the working efficiency.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cloth feeding mechanism of an overlock sewing machine, comprising an overlock sewing machine body, a workbench is arranged on the surface of the overlock sewing machine body, a slot is provided on one side of the surface of the overlock sewing machine body, an insertion rod is slidably connected to the inner wall of the slot, a mounting plate is fixedly connected to the top of the insertion rod, a feeding tooth is arranged on the upper surface of the mounting plate, a groove is provided at the lower part of the insertion rod, a card slot is provided on the inner wall of the groove, a fixed cylinder is fixedly connected to the lower surface of the inner wall of the slot, and a fixing cylinder is arranged on the upper part of the inner wall of the fixing cylinder There is a turntable, a through groove is opened on the surface of the turntable, a clamping rod is arranged on the inner wall of the through groove, a slider is fixedly connected to the upper part of the outer wall of the clamping rod, a connecting block is slidably connected to the inner wall of the slider, a spring is fixedly connected to one side of the inner wall of the slider, one end of the spring is fixedly connected to one side of the connecting block, one end of the connecting block is fixedly connected to the clamping block, the outer wall of the clamping block is embedded in the inner wall of the clamping groove, a sliding groove is opened on the upper surface of the slot, the outer wall of the slider is slidably connected to the inner wall of the sliding groove, and a disassembly mechanism is arranged on the lower surface of the turntable.

[0005] As an optimal technical solution for a cloth feeding mechanism of an overlock sewing machine of the utility model, the disassembly mechanism includes an installation groove, the installation groove is opened below the slot, the inner wall of the installation groove is rotatably connected to a rotating rod, one side of the outer wall of the rotating rod is fixedly connected to a bevel gear 1, one side of the bevel gear 1 is meshed with a bevel gear 2, one end of the bevel gear 2 is fixedly connected to a connecting rod, the top end of the connecting rod is fixedly connected to the lower surface of the turntable, and one end of the rotating rod is fixedly connected to a fixed disk.

[0006] As a preferred technical solution of the cloth feeding mechanism of an overlock sewing machine of the utility model, a torsion spring is arranged inside the installation groove, and the torsion spring is arranged on the outer wall of the rotating rod.

[0007] As an optimal technical solution for the cloth feeding mechanism of an overlock sewing machine of the utility model, guide blocks are fixedly connected to both sides of the outer wall of the sliding block, guide grooves are opened on both sides of the inner wall of the sliding groove, and the outer wall of the guide block is slidably connected to the inner wall of the guide groove.

[0008] As a preferred technical solution of the cloth feeding mechanism of an overlock sewing machine of the utility model, the through slot is arranged in an arc shape, and three through slots are provided, and the three through slots are provided at equal angles with the center of the circle of the rotating disk as the center.

[0009] As a preferred technical solution of the cloth feeding mechanism of an overlock sewing machine of the utility model, an inclined surface is provided on the upper surface of the clamping block, and the inner wall of the clamping groove is in a shape matching the outer wall of the clamping block.

[0010] As a preferred technical solution of the cloth feeding mechanism of an overlock sewing machine of the utility model, the lower part of the groove is arranged as an arc surface, and the lower arc surface of the groove and the upper surface inclined surface of the clamping block are arranged to fit together.

[0011] As a preferred technical solution of the cloth feeding mechanism of an overlock sewing machine of the utility model, a needle bar is arranged on one side of the overlock sewing machine body.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] The utility model inserts the insertion rod into the slot so that the groove is stuck in the fixed cylinder, and the inner wall of the groove passes through the blocking block, which shrinks inwards, thereby causing the connecting block to slide into the sliding block. When the blocking slot in the groove moves to the blocking block, the blocking block can be restored to its original position with the cooperation of the spring, so that the blocking block can be stuck in the blocking slot, and the mounting plate can be fixedly installed. The mounting plate can be quickly disassembled by setting the disassembly mechanism, thereby realizing that the feed dog can be quickly installed or replaced, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional diagram of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the utility model;

[0016] Figure 3 This is a cross-sectional view of the mounting plate of the utility model;

[0017] Figure 4 This is a diagram showing the structure of the utility model;

[0018] Figure 5 This is an exploded view of the structure of the utility model.

[0019] In the figure: 1. overlock machine body; 2. workbench; 3. mounting plate; 4. feed dog; 5. insertion rod; 6. slot; 7. groove; 8. clamping slot; 9. fixed cylinder; 10. turntable; 11. through slot; 12. clamping rod; 13. slider; 14. connecting block; 15. clamping block; 16. spring; 17. slide groove; 18. guide groove; 19. guide block; 20. disassembly mechanism; 2001. mounting groove; 2002. turning rod; 2003. bevel gear one; 2004. bevel gear two; 2005. connecting rod; 2006. fixed plate; 21. torsion spring; 22. needle bar. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] like Figures 1 to 5 As shown, the utility model provides a cloth feeding mechanism for an overlock sewing machine, comprising an overlock sewing machine body 1, a workbench 2 is arranged on the surface of the overlock sewing machine body 1, a slot 6 is provided on one side of the surface of the overlock sewing machine body 1, an insertion rod 5 is slidably connected to the inner wall of the slot 6, a mounting plate 3 is fixedly connected to the top of the insertion rod 5, a feeding tooth 4 is provided on the upper surface of the mounting plate 3, a groove 7 is provided at the lower part of the insertion rod 5, a card slot 8 is provided on the inner wall of the groove 7, a fixed cylinder 9 is fixedly connected to the lower surface of the inner wall of the slot 6, a turntable 10 is provided on the upper part of the inner wall of the fixed cylinder 9, and a through hole 4 is provided on the surface of the turntable 10 The slot 11 is provided with a clamping rod 12 on the inner wall of the through slot 11, a slider 13 is fixedly connected to the upper part of the outer wall of the clamping rod 12, a connecting block 14 is slidably connected to the inner wall of the slider 13, a spring 16 is fixedly connected to one side of the inner wall of the slider 13, one end of the spring 16 is fixedly connected to one side of the connecting block 14, a clamping block 15 is fixedly connected to one end of the connecting block 14, an outer wall of the clamping block 15 is embedded in the inner wall of the slot 8, a slide groove 17 is provided on the upper surface of the slot 6, the outer wall of the slider 13 is slidably connected to the inner wall of the slide groove 17, and a disassembly mechanism 20 is provided on the lower surface of the turntable 10;

[0022] By inserting the insertion rod 5 into the slot 6, the groove 7 is stuck in the fixed tube 9, and the inner wall of the groove 7 passes through the block 15, the block 15 shrinks inward, so that the connecting block 14 slides into the slider 13. When the slot 8 in the groove 7 moves to the block 15, the block 15 can be restored to its original position with the cooperation of the spring 16, so that the block 15 can be stuck in the slot 8, and the mounting plate 3 is fixedly installed. The mounting plate 3 can be quickly disassembled by setting the disassembly mechanism 20, so that the feed dog 4 can be quickly installed or replaced, thereby improving work efficiency.

[0023] Wherein, the disassembly mechanism 20 comprises a mounting groove 2001, the mounting groove 2001 is arranged below the slot 6, the inner wall of the mounting groove 2001 is rotatably connected with a rotating rod 2002, one side of the outer wall of the rotating rod 2002 is fixedly connected with a bevel gear 1 2003, one side of the bevel gear 1 2003 is meshed with a bevel gear 2004, one end of the bevel gear 2004 is fixedly connected with a connecting rod 2005, the top end of the connecting rod 2005 is fixedly connected to the lower surface of the rotating disk 10, and one end of the rotating rod 2002 is fixedly connected with a fixed disk 2006; a torsion spring 21 is arranged inside the mounting groove 2001, and the torsion spring 21 is arranged on the outer wall of the rotating rod 2002; both sides of the outer wall of the sliding block 13 are fixedly connected with guide blocks 19, both sides of the inner wall of the sliding groove 17 are provided with guide grooves 18, and the outer wall of the guide block 19 is slidably connected to the inner wall of the guide groove 18;

[0024] By rotating the fixed plate 2006, the rotating rod 2002 is driven to rotate, and the rotating rod 2002 drives the bevel gear 1 2003 to rotate, and the bevel gear 1 2003 drives the bevel gear 2 2004 to drive, and then the connecting rod 2005 can be driven to rotate, and the connecting rod 2005 drives the rotating disk 10 to rotate. With the cooperation of the through groove 11, the clamping rod 12 can move in the through groove 11, and guide blocks 19 are provided on both sides of the slider 13. With the cooperation of the guide groove 18, the slider 13 can slide in the slide groove 17, so that the clamping block 15 is separated from the clamping groove 8, and the mounting plate 3 can be disassembled. After disassembly, with the cooperation of the torsion spring 21, the rotating rod 2002 can be reversed and restored to its original position.

[0025] Among them, the through groove 11 is arranged in an arc shape, and there are three through grooves 11. The three through grooves 11 are arranged at equal angles with the center of the turntable 10 as the center. The upper surface of the block 15 is provided with an inclined surface, and the inner wall of the groove 8 is a shape matching the outer wall of the block 15. The lower part of the groove 7 is arranged in an arc surface, and the lower arc surface of the groove 7 is fitted with the inclined surface of the upper surface of the block 15. A needle bar 22 is arranged on one side of the overlock machine body 1.

[0026] The working principle and use process of this utility model:

[0027] When the device is needed, the rod 5 is inserted into the slot 6 to make the groove 7 snap into the fixed tube 9. The inner wall of the groove 7 passes through the block 15, and the block 15 shrinks inward, so that the connecting block 14 slides into the slider 13. When the slot 8 in the groove 7 moves to the block 15, the block 15 can be restored to its original position with the cooperation of the spring 16, so that the block 15 can be snapped into the slot 8, and the mounting plate 3 is fixedly installed. By rotating the fixed disk 2006, the rotating rod 2002 is driven to rotate, and the rotating rod 2002 drives the bevel gear 2003 to rotate, and the bevel gear 2003 drives the bevel gear The second 2004 is driven, which in turn can drive the connecting rod 2005 to rotate, and the connecting rod 2005 drives the turntable 10 to rotate. With the cooperation of the through slot 11, the clamping rod 12 can move in the through slot 11, and guide blocks 19 are provided on both sides of the slider 13. With the cooperation of the guide slot 18, the slider 13 can slide in the slide slot 17, so that the clamping block 15 is separated from the clamping slot 8, and the mounting plate 3 can be disassembled. After disassembly, with the cooperation of the torsion spring 21, the rotating rod 2002 can be reversed and restored to its original position, thereby realizing the rapid installation or replacement of the feed dog 4 and improving work efficiency.

[0028] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cloth feeding mechanism for an overlock sewing machine, comprising an overlock sewing machine body (1), characterized in that: A workbench (2) is provided on the surface of the overlock sewing machine body (1), a slot (6) is provided on one side of the surface of the overlock sewing machine body (1), an insertion rod (5) is slidably connected to the inner wall of the slot (6), a mounting plate (3) is fixedly connected to the top of the insertion rod (5), a feed dog (4) is provided on the upper surface of the mounting plate (3), a groove (7) is provided at the lower part of the insertion rod (5), a clamping groove (8) is provided on the inner wall of the groove (7), a fixed cylinder (9) is fixedly connected to the lower surface of the inner wall of the slot (6), a rotating disk (10) is provided on the upper part of the inner wall of the fixed cylinder (9), a through groove (11) is provided on the surface of the rotating disk (10), and the inner wall of the through groove (11) is provided with a through groove (11). A clamping rod (12) is provided, a slider (13) is fixedly connected to the upper part of the outer wall of the clamping rod (12), a connecting block (14) is slidably connected to the inner wall of the sliding block (13), a spring (16) is fixedly connected to one side of the inner wall of the sliding block (13), one end of the spring (16) is fixedly connected to one side of the connecting block (14), one end of the connecting block (14) is fixedly connected to a clamping block (15), the outer wall of the clamping block (15) is embedded in the inner wall of the clamping slot (8), a sliding slot (17) is provided on the upper part of the surface of the slot (6), the outer wall of the sliding block (13) is slidably connected to the inner wall of the sliding slot (17), and a disassembly mechanism (20) is provided on the lower surface of the turntable (10).

2. The cloth feeding mechanism of an overlock sewing machine according to claim 1, characterized in that: The disassembly mechanism (20) comprises a mounting groove (2001), wherein the mounting groove (2001) is arranged below the slot (6), the inner wall of the mounting groove (2001) is rotatably connected to a rotating rod (2002), one side of the outer wall of the rotating rod (2002) is fixedly connected to a bevel gear 1 (2003), one side of the bevel gear 1 (2003) is meshed with a bevel gear 2 (2004), one end of the bevel gear 2 (2004) is fixedly connected to a connecting rod (2005), the top end of the connecting rod (2005) is fixedly connected to the lower surface of the rotating disk (10), and one end of the rotating rod (2002) is fixedly connected to a fixed disk (2006).

3. The cloth feeding mechanism of an overlock sewing machine according to claim 2, characterized in that: A torsion spring (21) is arranged inside the installation groove (2001), and the torsion spring (21) is arranged on the outer wall of the rotating rod (2002).

4. The cloth feeding mechanism of an overlock sewing machine according to claim 1, characterized in that: Guide blocks (19) are fixedly connected to both sides of the outer wall of the sliding block (13), guide grooves (18) are provided on both sides of the inner wall of the sliding groove (17), and the outer wall of the guide block (19) is slidably connected to the inner wall of the guide groove (18).

5. The cloth feeding mechanism of an overlock sewing machine according to claim 1, characterized in that: The through slot (11) is arranged in an arc shape, and three through slots (11) are provided. The three through slots (11) are provided at equal angles with the center of the rotating disk (10) as the center.

6. The cloth feeding mechanism of an overlock sewing machine according to claim 1, characterized in that: The upper surface of the clamping block (15) is provided with an inclined surface, and the inner wall of the clamping slot (8) is in a shape matching the outer wall of the clamping block (15).

7. The cloth feeding mechanism of an overlock sewing machine according to claim 1, characterized in that: The lower part of the groove (7) is arranged as an arc surface, and the lower arc surface of the groove (7) is arranged to fit with the upper surface inclined surface of the clamping block (15).

8. The cloth feeding mechanism of an overlock sewing machine according to claim 1, characterized in that: A needle bar (22) is provided on one side of the overlock sewing machine body (1).

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