CN221797860U - Threading device and lockstitch sewing machine - Google Patents

Abstract

The utility model discloses a threading device and a lockstitch machine, comprising a fixing piece, a fixing ring and an elastic rope, wherein one end of the fixing piece is provided with a threading hook, the threading hook is used for threading through a needle hole, the surface of the fixing piece is also provided with the fixing ring, the fixing ring is wound with the elastic rope, one end of the elastic rope, which is far away from the fixing ring, is provided with a magnet block, and the magnet block can be used for being adsorbed on the lockstitch machine; through setting up mounting cooperation threading hook, magnet cooperation elastic cord simultaneously can realize connecting mounting and threading hook on the flush joint machine to prevent that mounting and threading hook from losing.

Description

Threading device and lockstitch sewing machine

Technical Field

The utility model relates to the technical field of threading a lockstitch sewing machine, in particular to a threading device and a lockstitch sewing machine.

Background Art

When using a lockstitch sewing machine, different types of needles are used according to the thickness of the fabric. The needle hole of a small needle is very small, making it difficult to thread the thread quickly, which affects work efficiency. The existing solution is to use a threader to thread the needle. The threader includes a handle and a hook. By holding the handle and passing the hook through the needle hole, the thread can be hung on the hook to complete the threading. However, the threaders on the market are all used independently, which is easy to cause loss.

In view of this, the existing technology still needs to be improved and developed.

Utility Model Content

In view of the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide a threading device and a lockstitch sewing machine, aiming to solve the problem that the threaders of the existing lockstitch sewing machines are independent and easily lost.

The technical solution adopted by the utility model to solve the technical problem is as follows:

A threading device, characterized by comprising:

A fixing piece, one end of which is provided with a threading hook;

A fixing ring, arranged on the surface of the fixing member;

An elastic cord, one end of which is wound around the fixing ring, and the other end of which is provided with a magnet block, and the magnet block is used to be adsorbed on the flat sewing machine.

Furthermore, a first magnet bar and a second magnet bar are respectively provided on both sides of the fixing member, and the first magnet bar and the second magnet bar are used for adsorbing on the lockstitch sewing machine.

Furthermore, a rubber belt is provided on the first magnet strip, and a magnet buckle is provided at one end of the rubber belt away from the first magnet strip, and the magnet buckle and the second magnet strip are attracted to each other.

Furthermore, the fixing piece is a metal sheet and is capable of plastic deformation.

Furthermore, the fixing member is made of magnetic material.

Furthermore, a magnet sheet is arranged inside the fixing member.

Furthermore, the magnet block is in a circular ring shape and is sleeved on the flat sewing machine.

A lockstitch sewing machine, characterized by comprising a threading device as described above.

Compared with the prior art, the beneficial effects of the utility model are:

In the utility model, a threading hook is arranged at one end of the fixing piece, and the threading hook is used to thread the thread through the needle hole. A fixing ring is also arranged on the surface of the fixing piece, and an elastic rope is wound around the fixing ring. A magnet block is arranged at one end of the elastic rope away from the fixing ring, and the magnet block can be used to be adsorbed on the flat sewing machine. By arranging the fixing piece to cooperate with the threading hook, and the magnet block to cooperate with the elastic rope, the fixing piece and the threading hook can be connected to the flat sewing machine, thereby preventing the fixing piece and the threading hook from being lost.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of the overall structure of the utility model.

FIG. 2 is a schematic diagram of the structure of the fixing member and the fixing rod of the utility model.

FIG. 3 is a schematic diagram of the structure of the threading hook of the utility model.

FIG. 4 is a schematic diagram of the structure of the lockstitch sewing machine and the fixing rod of the utility model.

The numbers in the figure indicate: 1. fixing part; 2. threading hook; 3. fixing ring; 4. magnet block; 5. elastic rope; 6. first magnet strip; 7. second magnet strip; 8. rubber belt; 9. magnet buckle; 10. flat sewing machine; 11. fixing rod.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and effect of the utility model clearer and more specific, the utility model is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

In view of the shortcomings of the prior art, this embodiment provides a threading device and a lockstitch sewing machine, which can be specifically described as follows:

As shown in Figures 1, 2 and 3, a threading device includes a fixing member 1, a fixing ring 3 and an elastic rope 5. A threading hook 2 is provided at one end of the fixing member 1. The threading hook 2 is used to pass through the needle hole of the sewing needle on the flat sewing machine 10. The threading can be completed by hanging the thread on the threading hook 2 and then withdrawing the threading hook 2 from the needle hole. The fixing member 1 is a handle for easy manual picking, and the fixing member 1 is configured as an arc-shaped sheet, which simultaneously increases the handle size of the traditional threader for easy searching. A fixing ring 3 is provided on the surface of the fixing member 1, and an elastic rope 5 is wound around the fixing ring 3. The elastic rope 5 is elastic and the elastic rope A magnet block 4 is arranged at one end away from the fixing ring 3, and the magnet block 4 is adsorbed on the sewing machine 10. The upper part of the sewing machine 10 for mounting the sewing needle is a cylindrical fixing rod 11 (as shown in FIG. 4 ), and the magnet block 4 can be adsorbed on the fixing rod 11. The magnet block 4 is adsorbed on the sewing machine 10, and the fixing member 1 is connected to the magnet block 4 through the elastic rope 5, so that the fixing member 1 can be connected to the sewing machine 10. When in use, the fixing member 1 is grasped and the elastic rope 5 is pulled, and the threading hook 2 at one end of the fixing member 1 is passed through the needle hole of the sewing needle, and then the thread is hung on the threading hook 2, and the threading hook 2 is withdrawn from the needle hole to complete the threading.

In one embodiment of the present application, the magnet block 4 can also be other fixing objects, such as: rubber sleeves, Velcro or snap tapes, etc. By putting the rubber strip, Velcro or snap tape on the fixing rod 11 to fix one end of the elastic rope 5, the fixing object can be effectively prevented from being separated from the fixing rod 11 under a strong pulling force, thereby preventing the elastic rope 5 from being disconnected from the fixing rod 11.

As shown in Figure 1, the first magnet strip 6 and the second magnet strip 7 are respectively arranged on the lateral sides of the fixing member 1, and the first magnet strip 6 and the second magnet strip 7 are used to be adsorbed on the sewing machine 10; further, the shape of the fixing member 1 is arc-shaped, so that the surface can be attached to the surface of the fixing rod 11 on which the sewing needle of the sewing machine 10 is installed, and then the first magnet strip 6 and the second magnet strip 7 are adsorbed on the fixing rod 11, so as to fix the fixing member 1 and prevent the fixing member 1 from shaking and affecting the sewing work.

In one embodiment of the present application, a rubber band 8 is provided on the first magnet strip 6, and a magnet buckle 9 is provided at one end of the rubber band 8 away from the first magnet strip 6. The magnet buckle 9 has the same magnetic properties as the magnet block 4, so that the magnet buckle 9 can be mutually attracted with the second magnet strip 7;

Since the position of the sewing needle of the flat-bed sewing machine 10 will move at a high speed, in order to prevent the first magnet strip 6 and the second magnet strip 7 from having insufficient adsorption force, and the fixing part 1 from being thrown out of the surface of the fixing rod 11, a rubber belt 8 is set on one side of the first magnet strip 6, and then the other end of the rubber belt 8 is wrapped around the fixing rod 11 and adsorbed with the second magnet strip 7, so that the fixing part 1 is bound to the fixing rod 11 under the action of the rubber belt 8, the first magnet strip 6 and the second magnet strip 7, which can effectively prevent the fixing part 1 from being detached due to the movement of the fixing rod 11.

In this embodiment, the fixing part 1 is a metal sheet and can undergo plastic deformation. When the flat sewing machine 10 and the fixing rod 11 on the flat sewing machine 10 are replaced, the diameter of the fixing rod 11 may change, and the fixing part 1 is a concave arc surface that cannot fit with the surface of the fixing rod 11. The present application sets the fixing part 1 as a metal sheet and can undergo plastic deformation under the action of external force, so that the arc surface of the fixing part 1 undergoes plastic deformation to fit the surface of the fixing rod 11, so that it can be applicable to a variety of flat sewing machines 10 and a variety of fixing rods 11 with different diameters in the flat sewing machines 10.

In this embodiment, the material of the fixing part 1 can be a magnetic material, so that the magnet buckle 9 and the fixing part 1 can be adsorbed; when the diameter of the fixing rod 11 is changed, if the diameter of the fixing rod 11 is too small, the magnet buckle 9 and the second magnet strip 7 are adsorbed, and the rubber belt 8 cannot abut against the surface of the fixing rod 11 at this time, and will not have a binding force on the fixing part 1; and the present application, by setting the fixing part 1 itself to a magnetic material, can make the magnet buckle 9 and the convex arc surface of the fixing part 1 adsorb to each other, so that the rubber strip can abut against the surface of the fixing rod 11, and at the same time provide a binding force to the fixing part 1.

In this embodiment, a magnet sheet may also be provided inside the fixing member 1. The magnet sheet is the same as the magnet block 4 and has specific magnetic force, so that the fixing member 1 body can be directly adsorbed on the fixing rod 11, providing a certain adsorption force, effectively preventing the fixing member 1 from detaching from the fixing rod 11.

In one embodiment of the present application, the magnet block 4 is in a circular shape and is mounted on the fixed rod 11 of the sewing machine 10. By mounting the magnet block 4 on the fixed rod 11, it can effectively prevent the magnet block 4 from being pulled off and lost due to the large pulling force when pulling the fixing part 1; it can also prevent the magnet block 4 from being separated from the fixed rod 11 during the up and down movement of the fixed rod 11.

A flat-bed sewing machine 10 includes the threading device as described above; as shown in Figures 3 and 4, a fixing rod 11 is provided at the bottom of one side of the flat-bed sewing machine 10, the bottom of the fixing rod 11 is used to fix the sewing needle, a magnet block 4 is adsorbed on the upper position of the fixing rod 11, and a fixing member 1 can be attached to the middle and lower positions of the fixing rod 11; at the same time, the magnet block 4 can also be located in the middle of the fixing rod 11, and the fixing member 1 covers the magnet block 4.

Those skilled in the art will readily come up with other embodiments of the present invention after considering the specification and practicing the solutions disclosed herein. The present invention is intended to cover any variations, uses or adaptations of the present invention, which follow the general principles of the present invention and include common knowledge or customary technical means in the art that are not disclosed in the present solution. The specification and examples are to be regarded as exemplary only, and the true scope and spirit of the present invention are indicated by the claims.

Claims (8)

1. A threading device, comprising: A fixing piece, one end of which is provided with a threading hook; A fixing ring, arranged on the surface of the fixing member; An elastic cord, one end of which is wound around the fixing ring, and the other end of which is provided with a magnet block, and the magnet block is used to be adsorbed on the flat sewing machine. 2. A threading device according to claim 1, characterized in that a first magnet bar and a second magnet bar are respectively provided on both sides of the fixing member, and the first magnet bar and the second magnet bar are used to be adsorbed on a lockstitch sewing machine. 3. A threading device according to claim 2, characterized in that a rubber belt is provided on the first magnet strip, a magnet buckle is provided at one end of the rubber belt away from the first magnet strip, and the magnet buckle and the second magnet strip are mutually adsorbed. 4. A threading device according to claim 3, characterized in that the fixing piece is a metal sheet and can undergo plastic deformation. 5. A threading device according to claim 3, characterized in that the material of the fixing piece is magnetic material. 6. A threading device according to claim 5, characterized in that a magnet sheet is provided inside the fixing member. 7. A threading device according to claim 1, characterized in that the magnet block is annular and is sleeved on a lockstitch sewing machine. 8. A lockstitch sewing machine, characterized in that it comprises a threading device as claimed in any one of claims 1 to 7.