Positioning device of double-needle sewing machine

Abstract

The utility model relates to the field of positioning equipment, and discloses a positioning device of a double-needle sewing machine, which comprises a working table, a sewing machine main body is mounted at the top of the working table, a positioning component is arranged at the top of the working table, the positioning component is positioned on the rear side of the sewing machine main body, and the positioning component comprises a U-shaped frame, an adjusting seat and a positioning frame. The U-shaped frame is installed on the working table through a detachable structure, adjusting seats are slidably installed on the inner wall of the top of the U-shaped frame, the same positioning frame is fixedly installed at the bottoms of the two adjusting seats, a U-shaped plate is slidably installed in the positioning frame, a pressing roller is rotatably installed in the U-shaped plate, two guide grooves are formed in the inner wall of the top of the U-shaped frame, and the pressing roller is rotatably installed in the two guide grooves. And the adjusting seats are in sliding connection with the corresponding guide grooves. Compared with the prior art, the cloth belt positioning device has the advantages that the cloth belt can be positioned through the positioning frame, the cloth belt can be pressed through the pressing roller, and the situation that the cloth belt is dislocated when moving is avoided.

Description

Technical Field

[0001] This utility model relates to the field of positioning equipment technology, and in particular to a positioning device for a double-needle sewing machine. Background Technology

[0002] A double-needle sewing machine fixes two sewing needles on its movable shaft, enabling it to sew two horizontal threads simultaneously. A patent document with authorization announcement number CN219239961U discloses a positioning device for a double-needle sewing machine, comprising: a needle-holding block fixed to the movable shaft of the double-needle sewing machine, the needle-holding block having multiple needle-holding holes for fixing the sewing needles; a thread tensioning plate disposed on the machine head of the double-needle sewing machine, the thread tensioning plate having multiple thread-passing holes corresponding to the needle-holding holes; a fixing shell fixed to the side of the machine head; a laser emitter slidably disposed on the fixing shell, the laser emitter forming a linear light spot on the working panel of the double-needle sewing machine; and a scale disposed on the fixing shell; wherein the laser emitter is connected to a scale, the tip of the scale facing the graduation line of the scale.

[0003] However, while the laser emitter can position the fabric strip, when the operator pulls the fabric, the lack of a guiding and positioning mechanism can easily lead to deviation and wrinkles, resulting in poor sewing quality. Therefore, we propose a positioning device for a double-needle sewing machine to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a positioning device for a double-needle sewing machine. The positioning frame can position the fabric strip, and the pressure roller can press the fabric strip tightly to prevent misalignment when the fabric strip moves.

[0005] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a positioning device for a double-needle sewing machine, including a worktable, a sewing machine body mounted on the top of the worktable, a positioning component located on the rear side of the sewing machine body, the positioning component including a U-shaped frame, an adjusting seat and a positioning frame, the U-shaped frame being mounted on the worktable via a detachable structure, an adjusting seat being slidably mounted on the inner top wall of the U-shaped frame, the bottom of the two adjusting seats being fixedly mounted with the same positioning frame, a U-shaped plate being slidably mounted inside the positioning frame, and a pressure roller being rotatably mounted inside the U-shaped plate.

[0006] By adopting the above technical solution, the positioning frame can be used to position the fabric strip, and the pressure roller can be used to press the fabric strip, thus preventing misalignment when the fabric strip moves.

[0007] A further feature of this invention is that: two guide grooves are provided on the top inner wall of the U-shaped frame, and the adjusting seat is slidably connected to the corresponding guide groove; a driving mechanism is provided on the U-shaped frame, and the driving mechanism is connected to the adjusting seat; the driving mechanism includes a threaded rod and a rotating plate; the threaded rod is rotatably installed on the inner walls of both sides of the U-shaped frame, and the adjusting seat is threaded onto the threaded rod; one end of the threaded rod extends to the outside of the U-shaped frame and is fixedly installed with the rotating plate.

[0008] By adopting the above technical solution, and by setting a threaded rod, the movement of the threaded rod can drive the adjustment seat to move, and the adjustment seat can drive the positioning frame to move, thereby achieving the purpose of adjusting the position of the positioning frame.

[0009] A further feature of this invention is that: a movable groove is provided on both inner walls of the positioning frame, and the U-shaped plate is slidably connected to the movable groove; the same rotating shaft is rotatably installed on both inner walls of the U-shaped plate, and the pressure roller is fixedly sleeved on the rotating shaft.

[0010] By adopting the above technical solution, the U-shaped plate can be guided by the movable groove, thereby achieving the purpose of stable movement of the U-shaped plate. By setting the rotating shaft, the pressure roller can be rotated and installed on the U-shaped plate.

[0011] A further feature of this invention is that a plurality of fixing springs are fixedly installed on the top of the U-shaped plate, and the top ends of the fixing springs are fixedly installed on the top inner wall of the U-shaped frame.

[0012] By adopting the above technical solution, and by setting a fixed spring, the fixed spring can press the U-shaped plate downward, the U-shaped plate can press the pressure roller downward, and the pressure roller can press the fabric tightly.

[0013] A further feature of this invention is that the positioning frame is provided with a pressing mechanism, and the pressing mechanism is adapted to the U-shaped plate. The pressing mechanism includes a threaded hole, a pressing screw, and a handle. The threaded hole is opened on the top inner wall of the positioning frame, and the pressing screw is installed in the threaded hole. The pressing screw is adapted to the U-shaped plate, and a handle is fixedly installed at the top end of the pressing screw.

[0014] By adopting the above technical solution and by setting up an extrusion mechanism, the movement of the extrusion screw can come into contact with the U-shaped plate, thereby limiting the U-shaped plate in the vertical direction.

[0015] A further feature of this invention is that: a limiting groove is provided on the inner wall of the front and rear sides of the guide groove; a limiting seat is fixedly installed on the front and rear sides of the adjusting seat, and the limiting seat is slidably connected to the corresponding limiting groove; a guide hole is provided on one side of the U-shaped frame; a scale rod is fixedly installed on one side of the positioning frame, and the scale rod can pass through the U-shaped frame through the guide hole.

[0016] By adopting the above technical solution, the distance the positioning frame moves can be measured by setting a scale rod, thereby enabling precise adjustment of the positioning frame.

[0017] The beneficial effects of this utility model are:

[0018] (1) Pass the fabric strip to be sewn onto the item through the positioning frame, and the fabric strip is located below the pressure roller. The positioning frame can position the fabric strip. The fixing spring can press the U-shaped plate and the pressure roller downward, so that the pressure roller contacts the fabric strip. By rotating the handle and the extrusion screw, the extrusion screw can be rotated and moved at the same time under the action of the threaded hole, so that the extrusion screw contacts the top of the U-shaped plate, thereby achieving the purpose of limiting the U-shaped plate. The positioning frame can position the fabric strip, and the pressure roller can press the fabric strip to prevent misalignment when the fabric strip moves.

[0019] (2) By rotating the rotating plate, the rotating plate can drive the threaded rod to rotate, the rotation of the threaded rod can drive the adjusting seat to move, the adjusting seat can drive the positioning frame to move in the horizontal direction, the positioning frame can drive the scale rod to move, and the moving distance of the positioning frame can be measured through the scale rod, thereby achieving the purpose of precise adjustment of the positioning frame, and thus achieving the purpose of adjusting the position of the positioning frame according to the actual situation. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a three-dimensional structural schematic diagram of a positioning device for a double-needle sewing machine according to the present invention;

[0022] Figure 2 This is a three-dimensional structural diagram of the positioning component of the positioning device for a double-needle sewing machine according to the present invention;

[0023] Figure 3 This is a cross-sectional perspective view of the positioning component of the positioning device for a double-needle sewing machine according to this utility model.

[0024] Figure 4 This is a schematic diagram of structure A of a positioning device for a double-needle sewing machine according to this utility model.

[0025] In the diagram, 1. Workbench; 2. Sewing machine body; 3. Positioning assembly; 301. U-shaped frame; 302. Adjustment seat; 303. Positioning frame; 4. Guide groove; 501. Threaded rod; 502. Rotating plate; 601. Guide hole; 602. Scale rod; 701. Moving groove; 702. U-shaped plate; 703. Rotating shaft; 704. Pressure roller; 8. Fixed spring; 901. Threaded hole; 902. Extrusion screw; 903. Handle. Detailed Implementation

[0026] The technical solution of this utility model will now be clearly and completely described with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0027] When a component is described as being "set on" another component, it can be directly on the other component or it can be in an intervening component. "Set on" indicates a mode of existence, which can be a connection, installation, fixed connection, active connection, etc. When a component is described as being "connected" to another component, it can be directly connected to the other component or it may be in an intervening component.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0029] See Figures 1-4 This utility model provides a positioning device for a double-needle sewing machine, including a worktable 1, a sewing machine body 2 mounted on the top of the worktable 1, a positioning component 3 located on the top of the worktable 1, the positioning component 3 being located on the rear side of the sewing machine body 2, the positioning component 3 including a U-shaped frame 301, an adjusting seat 302 and a positioning frame 303, the U-shaped frame 301 being mounted on the worktable 1 via a detachable structure, the adjusting seat 302 being slidably mounted on the inner top wall of the U-shaped frame 301, the same positioning frame 303 being fixedly mounted on the bottom of the two adjusting seats 302, a U-shaped plate 702 being slidably mounted inside the positioning frame 303, and a pressure roller 704 being rotatably mounted inside the U-shaped plate 702.

[0030] Specifically, two guide grooves 4 are provided on the top inner wall of the U-shaped frame 301, and the adjusting seat 302 is slidably connected to the corresponding guide groove 4. The U-shaped frame 301 is provided with a driving mechanism, and the driving mechanism is connected to the adjusting seat 302.

[0031] Specifically, the drive mechanism includes a threaded rod 501 and a rotating plate 502. The threaded rod 501 is rotatably mounted on the inner walls of both sides of the U-shaped frame 301, and the adjusting seat 302 is threaded onto the threaded rod 501. One end of the threaded rod 501 extends to the outside of the U-shaped frame 301 and is fixedly mounted on the rotating plate 502.

[0032] Specifically, the positioning frame 303 has movable grooves 701 on both inner walls, and the U-shaped plate 702 is slidably connected to the movable grooves 701. The same rotating shaft 703 is rotatably installed on both inner walls of the U-shaped plate 702, and the pressure roller 704 is fixedly sleeved on the rotating shaft 703.

[0033] Specifically, multiple fixing springs 8 are fixedly installed on the top of the U-shaped plate 702, and the top of the fixing springs 8 are fixedly installed on the top inner wall of the U-shaped frame 301.

[0034] Specifically, the positioning frame 303 is provided with a pressing mechanism, which is adapted to the U-shaped plate 702. The pressing mechanism includes a threaded hole 901, a pressing screw 902 and a handle 903. The threaded hole 901 is opened on the top inner wall of the positioning frame 303. The pressing screw 902 is installed in the threaded hole 901. The pressing screw 902 is adapted to the U-shaped plate 702. The handle 903 is fixedly installed at the top of the pressing screw 902.

[0035] Specifically, limit grooves are provided on the front and rear inner walls of the guide groove 4, and limit seats are fixedly installed on the front and rear sides of the adjusting seat 302. The limit seats are slidably connected to the corresponding limit grooves. A guide hole 601 is provided on one side of the U-shaped frame 301, and a scale rod 602 is fixedly installed on one side of the positioning frame 303. The scale rod 602 can pass through the U-shaped frame 301 through the guide hole 601.

[0036] Working principle: The fabric strip to be sewn onto the item passes through the positioning frame 303, and the fabric strip is located below the pressure roller 704. The positioning frame 303 can position the fabric strip. The fixing spring 8 can press the U-shaped plate 702 and the pressure roller 704 downward, so that the pressure roller 704 contacts the fabric strip. By rotating the handle 903 and the pressing screw 902, under the action of the threaded hole 901, the pressing screw 902 can rotate and move simultaneously, so that the pressing screw 902 contacts the top of the U-shaped plate 702, thereby achieving the purpose of limiting the U-shaped plate 702. The positioning frame 303 can position the fabric strip, and the pressure roller... 704 can press the fabric strip to prevent misalignment when the fabric strip moves. By rotating the rotating plate 502, the rotating plate 502 can drive the threaded rod 501 to rotate. The rotation of the threaded rod 501 can drive the adjusting seat 302 to move. The adjusting seat 302 can drive the positioning frame 303 to move in the horizontal direction. The positioning frame 303 can drive the scale rod 602 to move. The scale rod 602 can measure the moving distance of the positioning frame 303, thereby achieving the purpose of precise adjustment of the positioning frame 303. Thus, the position of the positioning frame 303 can be adjusted according to the actual situation.

[0037] The positioning device for a double-needle sewing machine provided by this utility model has been described in detail above. Specific embodiments have been used to illustrate the principle and implementation of this utility model. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core idea of ​​this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made to this utility model without departing from the principle of this utility model, and these improvements and modifications also fall within the protection scope of the claims of this utility model.

Claims

1. A positioning device for a double-needle sewing machine, characterized in that, Includes a workbench (1), on the top of which a sewing machine body (2) is mounted, and on the top of which a positioning component (3) is provided, the positioning component (3) being located on the rear side of the sewing machine body (2); The positioning component (3) includes a U-shaped frame (301), an adjusting seat (302), and a positioning frame (303). The U-shaped frame (301) is installed on the workbench (1) via a detachable structure. The adjusting seat (302) is slidably installed on the inner top wall of the U-shaped frame (301). The bottom of the two adjusting seats (302) is fixedly installed with the same positioning frame (303). A U-shaped plate (702) is slidably installed inside the positioning frame (303). A pressure roller (704) is rotatably installed inside the U-shaped plate (702).

2. The positioning device for a double-needle sewing machine according to claim 1, characterized in that: The top inner wall of the U-shaped frame (301) has two guide grooves (4), and the adjusting seat (302) is slidably connected to the corresponding guide groove (4). The U-shaped frame (301) is provided with a driving mechanism, and the driving mechanism is connected to the adjusting seat (302).

3. The positioning device for a double-needle sewing machine according to claim 1, characterized in that: The driving mechanism includes a threaded rod (501) and a rotating plate (502). The threaded rod (501) is rotatably mounted on the inner walls of both sides of the U-shaped frame (301), and the adjusting seat (302) is threaded onto the threaded rod (501). One end of the threaded rod (501) extends to the outside of the U-shaped frame (301) and is fixedly mounted on the rotating plate (502).

4. The positioning device for a double-needle sewing machine according to claim 1, characterized in that: The positioning frame (303) has movable grooves (701) on both inner walls, and the U-shaped plate (702) is slidably connected to the movable grooves (701).

5. The positioning device for a double-needle sewing machine according to claim 1, characterized in that: The same rotating shaft (703) is rotatably installed on the inner walls of both sides of the U-shaped plate (702), and the pressure roller (704) is fixedly sleeved on the rotating shaft (703).

6. The positioning device for a double-needle sewing machine according to claim 1, characterized in that: The top of the U-shaped plate (702) is fixedly installed with a plurality of fixing springs (8), and the top of the fixing springs (8) is fixedly installed on the top inner wall of the U-shaped frame (301).

7. The positioning device for a double-needle sewing machine according to claim 1, characterized in that: The positioning frame (303) is provided with a pressing mechanism, and the pressing mechanism is adapted to the U-shaped plate (702).

8. The positioning device for a double-needle sewing machine according to claim 7, characterized in that: The extrusion mechanism includes a threaded hole (901), an extrusion screw (902), and a handle (903). The threaded hole (901) is opened on the top inner wall of the positioning frame (303). The extrusion screw (902) is installed in the threaded hole (901). The extrusion screw (902) is adapted to the U-shaped plate (702). The handle (903) is fixedly installed at the top of the extrusion screw (902).

9. The positioning device for a double-needle sewing machine according to claim 2, characterized in that: Limiting grooves are provided on the inner walls of the front and rear sides of the guide groove (4), and limiting seats are fixedly installed on the front and rear sides of the adjusting seat (302), and the limiting seats are slidably connected to the corresponding limiting grooves.

10. The positioning device for a double-needle sewing machine according to claim 1, characterized in that: A guide hole (601) is provided on one side of the U-shaped frame (301), and a scale rod (602) is fixedly installed on one side of the positioning frame (303), and the scale rod (602) can pass through the U-shaped frame (301) through the guide hole (601).

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