A thread take-up rod bending and rebound control device

Abstract

The utility model provides a thread take-up rod bending and rebound control device, which belongs to the field of sewing machine equipment, and comprises a thread take-up rod, a mounting assembly and a reset spring; one end of the thread take-up rod is provided with a mounting hole, and the other end of the thread take-up rod is connected with a thread take-up part; in the utility model: a plane connection between a first mold and a second mold is arranged with a height difference, so that the height difference formed at the connection between the thread take-up rod and the thread take-up part after being processed and formed is the same, so that the thread take-up rod and the thread take-up part are respectively placed on the surfaces of the first mold and the second mold correspondingly, and a slider is pushed to slide on the surface of the second mold so that the slider drives a support frame to approach the thread take-up part, and a screw rod is driven to drive a pressure block at the bottom end to press the drop position formed at the connection between the thread take-up rod and the thread take-up part by rotating the screw rod, so as to facilitate the control of the rebound amount at the connection between the thread take-up rod and the thread take-up part after being processed and formed.

Description

Technical Field

[0001] The utility model relates to the field of sewing machine equipment, in particular to a thread take-up lever bending and rebound control device. Background Art

[0002] During the sewing process of clothes, the machine needle drives the sewing thread into the product to be sewn. After the thread hooking mechanism hooks the upper thread, the thread hooking mechanism releases the upper thread. After the upper thread is released, the upper thread is tightened by the thread take-up rod and interwoven with the bottom thread to form a stitch to complete the sewing of the article. Since the movement trajectory of the thread take-up rod is fixed, in the process of the thread take-up rod tightening the upper thread, the tensioning force of the upper thread on the upper thread is different when the position of the thread take-up rod is different. The tension of the stitching will change during the sewing process, resulting in unstable stitches in the sewing of clothes, thereby affecting the sewing effect and quality of clothes. Among them, an improved sewing machine thread take-up rod structure with application number "CN202011616300.4" is disclosed. The present invention adopts the above-mentioned scheme. Since a transverse notch is provided on the long slot hole, the thread is moved online. When the thread reaches the end of the long slot hole, the thread will stay in the horizontal notch for a certain period of time to ensure the thread collection during the sewing process, and better ensure the thread amount that matches the thread passing amount. During the thread hooking process of the thread hooking mechanism, the thread feed amount and the tension of the surface thread remain stable when the thread take-up rod runs to different positions, making the tension of the sewing thread more stable, and the stitches in the sewing of clothes more stable, further ensuring the sewing effect and sewing quality of clothes, and further avoiding the breakage of the surface thread. However, the thread take-up rod still has certain deficiencies when used: plastic deformation and elastic deformation will occur during the bending process of the thread take-up rod and the thread take-up part. Since there is no structural control device for the rebound angle during bending, the bending angle is affected by the rebound during the bending process, thereby affecting the use of the structural parts. Utility Model Content

[0003] The purpose of the utility model is to provide a bending rebound control device for a thread take-up rod to solve the problem that plastic deformation and elastic deformation will occur during the bending process of the thread take-up rod and the thread take-up part proposed in the above background technology, and since there is no structural device to control the rebound angle during bending, the bending angle is affected by the rebound during the bending process, thereby affecting the use of the structural parts.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a thread take-up lever bending and rebound control device, comprising a thread take-up lever, a mounting assembly and a reset spring;

[0005] Wherein: one end of the thread take-up rod is provided with a mounting hole, and the other end of the thread take-up rod is connected with a thread take-up part;

[0006] The mounting assembly includes two connecting posts arranged on the surface of the sewing machine, one end of the two connecting posts is provided with a sliding hole, the interior of the sliding hole is inserted with a guide rod, the guide rod is fixedly connected to the sewing machine, and the other end of the two connecting posts is fixedly connected with a plug, the plug is inserted into the interior of the mounting hole;

[0007] The return spring is sleeved on the middle part of the guide rod, and the two ends of the return spring are respectively in contact with and connected to one side of the two connecting columns.

[0008] As a preferred solution of the utility model: a retaining ring is fixedly connected to the middle of the two connecting columns, an anti-slip groove is provided at the connection between the connecting column and the plug, and the edge of the mounting hole is inserted into the anti-slip groove.

[0009] As a preferred solution of the utility model: both ends of the guide rod are fixedly connected to limit rings.

[0010] As a preferred solution of the utility model: snap buttons are fixedly installed on the surfaces of the two connecting posts, and the surfaces of the snap buttons are provided with anti-slip patterns.

[0011] As a preferred solution of the utility model: the thread taking-up part comprises a first thread passing groove provided at the edge of the other end of the thread taking-up rod, and the other end of the thread taking-up rod is provided with a second thread passing groove near the first thread passing groove.

[0012] As a preferred solution of the utility model: reinforcing ribs are provided on both sides of the thread take-up lever.

[0013] As a preferred solution of the utility model: it is used to process the above-mentioned thread take-up rod, a first mold and a second mold, a drop is provided at the connection between the first mold and the second mold, a slider is slidably installed on the surface of the second mold, the top of the slider is connected to a support frame, the top of the support frame is threadedly connected to a screw rod, the bottom end of the screw rod is rotatably installed with a pressure block, and the pressure block is pressed tightly on the bending part where the thread take-up part and the thread take-up rod are connected.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] (1) A mounting hole is provided at one end of the thread take-up rod. During installation, the thread take-up rod is held with one hand and the buttons on the surfaces of the two connecting posts are pressed with the other hand. The buttons drive the two connecting posts to slide close to each other on the surface of the guide rod. At this time, the two connecting posts squeeze the reset spring. When the two connecting posts are close to each other, the plugs at the other ends are close to each other, so that the distance between the outer diameters of the two plugs is smaller than the mounting hole. The plug is passed through the mounting hole so that the thread take-up rod contacts the retaining ring in the middle of the connecting rod. At this time, the button is released, and the reset spring pushes the two connecting posts apart so that the edge of the mounting hole is inserted into the anti-slip groove provided at the connection between the connecting post and the plug to prevent the plug from detaching from the mounting hole. At this time, the installation of the thread take-up rod and the sewing machine is completed. When disassembling, press the button to remove the thread take-up rod away from the connecting post.

[0016] (2) The thread taking-up part includes a first thread passing groove provided at the edge of the other end of the thread taking-up rod, and a second thread passing groove is provided on one side of the first thread passing groove, and the thread can be passed through the first thread passing groove and the second thread passing groove before sewing;

[0017] (3) A height difference is arranged at the connection between the planes of the first mold and the second mold, so that the height difference is the same as the height difference formed at the connection between the thread take-up rod and the thread take-up part after they are processed and formed. In this way, the thread take-up rod and the thread take-up part are placed on the surfaces of the first mold and the second mold respectively, and the slider is pushed to slide on the surface of the second mold, so that the slider drives the support frame to approach the thread take-up part, and the screw rod is driven by the bottom pressure block to press the height difference formed at the connection between the thread take-up rod and the thread take-up part, thereby facilitating the control of the rebound amount at the connection between the thread take-up rod and the thread take-up part after they are processed and formed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view structural schematic diagram of the utility model;

[0020] Figure 3 This is a schematic diagram of the split structure of the utility model;

[0021] Figure 4 This is a schematic diagram of the installation assembly structure of the utility model;

[0022] Figure 5 It is a schematic diagram of the structure of the first mold and the second mold of the utility model.

[0023] In the figure: 1. thread take-up rod; 2. mounting hole; 3. thread take-up part; 31. first thread passing groove; 32. second thread passing groove; 4. mounting assembly; 41. connecting column; 42. sliding hole; 43. guide rod; 44. plug; 45. retaining ring; 46. anti-slip groove; 5. reset spring; 6. limiting ring; 7. snap button; 8. anti-slip groove; 9. reinforcing rib; 10. first mold; 11. second mold; 12. slider; 13. support frame; 14. screw; 15. pressing block. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the implementation of the utility model clearer, the technical solution in the implementation of the utility model will be clearly and completely described below in conjunction with the drawings in the implementation of the utility model. Obviously, the described implementation is a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1-Figure 4 A thread take-up lever bending and rebound control device comprises: a thread take-up lever 1, a mounting assembly 4 and a return spring 5; a mounting hole 2 is provided at one end of the thread take-up lever 1, and a thread take-up part 3 is connected to the other end of the thread take-up lever 1;

[0026] See also Figure 1 , Figure 4 The mounting assembly 4 includes two connecting columns 41 arranged on the surface of the sewing machine, one end of the two connecting columns 41 is provided with a sliding hole 42, the interior of the sliding hole 42 is inserted with a guide rod 43, the guide rod 43 is fixedly connected to the sewing machine, the other end of the two connecting columns 41 is fixedly connected with a plug 44, the plug 44 is inserted into the interior of the mounting hole 2, a reset spring 5, the reset spring 5 is sleeved in the middle of the guide rod 43, the two ends of the reset spring 5 are respectively in contact with one side of the two connecting columns 41, a retaining ring 45 is fixedly connected to the middle of the two connecting columns 41, an anti-slip groove 46 is provided at the connection between the connecting column 41 and the plug 44, the edge of the mounting hole 2 is inserted in the anti-slip groove 46, and the surfaces of the two connecting columns 41 are fixedly installed with snap buttons 7, and the surface of the snap buttons 7 is provided with anti-slip patterns 8.

[0027] During specific use: two connecting columns 41 are arranged on the surface of the sewing machine, and the two connecting columns 41 are slidably installed on the surface of the guide rod 43 through the sliding hole 42 at one end. When the thread take-up rod 1 needs to be installed, the press button 7 drives the two connecting columns 41 to move closer, and the approach of the connecting column 41 drives the plug 44 at the other end to shrink. The plug 44 shrinks so that the outer diameter is smaller than the mounting hole 2. The plug 44 is passed through the mounting hole 2, so that the thread take-up rod 1 contacts the retaining ring 45 in the middle of the connecting column 41. At this time, the press button 7 is released, and the reset spring 5 pushes the two connecting columns 41 to slide apart on the surface of the guide rod 43, so that the edge of the mounting hole 2 is inserted into the anti-slip groove 46 opened at the connection between the connecting column 41 and the plug 44 to prevent the plug 44 from detaching from the mounting hole 2. At this time, the installation of the thread take-up rod 1 and the sewing machine is completed, and the anti-slip pattern 8 on the surface of the press button 7 can increase the friction with the hand when pressed.

[0028] See also Figure 1 , Figure 4 Both ends of the guide rod 43 are fixedly connected to the limiting ring 6.

[0029] During specific use, the limiting rings 6 fixedly connected at both ends of the guide rod 43 play the role of limiting the connecting column 41 to prevent the connecting column 41 from slipping off the surface of the guide rod 43 .

[0030] See also Figure 1 , Figure 2 The thread taking-up portion 3 includes a first thread passing groove 31 provided at the edge of the other end of the thread taking-up rod 1 , and a second thread passing groove 32 is provided at the other end of the thread taking-up rod 1 near the first thread passing groove 31 .

[0031] During specific use: the thread taking-up part 3 includes a first thread passing groove 31 opened at the edge of the other end of the thread taking-up rod 1, and a second thread passing groove 32 is opened on one side of the first thread passing groove 31. Before sewing, the thread can be passed through the first thread passing groove 31 and the second thread passing groove 32.

[0032] See also Figure 1 , reinforcing ribs 9 are provided on both sides of the thread take-up lever 1.

[0033] During specific use: the reinforcing ribs 9 provided on both sides of the thread take-up lever 1 enhance the structural strength of the thread take-up lever 1 .

[0034] See also Figure 5 , used for processing the above-mentioned thread take-up rod, characterized in that it also includes: a first mold 10 and a second mold 11, a drop is arranged at the connection between the first mold 10 and the second mold 11, a slider 12 is slidably installed on the surface of the second mold 11, a support frame 13 is connected to the top of the slider 12, a screw rod 14 is threadedly connected to the top of the support frame 13, a pressing block 15 is rotatably installed at the bottom end of the screw rod 14, and the pressing block 15 is pressed tightly on the bending part where the thread take-up part 3 and the thread take-up rod 1 are connected.

[0035] During specific use: a certain height difference is provided at the plane connection between the first mold 10 and the second mold 11, and a height difference is formed at the connection between the thread taking-up rod 1 and the thread taking-up part 3 after they are processed and formed. The thread taking-up rod 1 is placed on the surface of the first mold 10, and the thread taking-up part 3 is placed on the surface of the second mold 11. The height difference design at the plane connection between the first mold 10 and the second mold 11 is the same as the height difference formed at the connection between the thread taking-up rod 1 and the thread taking-up part 3 after they are processed and formed. This facilitates the thread taking-up rod 1 and the thread taking-up part 3 to be placed horizontally on the surfaces of the first mold 10 and the second mold 11 respectively. At this time, the slider 12 is adjusted to slide on the surface of the second mold 11, so that the slider 12 drives the support frame 13 to approach the thread taking-up part 3, and the screw 14 is driven to drive the pressure block 15 at the bottom to press the difference position formed at the connection between the thread taking-up rod 1 and the thread taking-up part 3, thereby controlling the rebound amount at the connection between the thread taking-up rod 1 and the thread taking-up part 3 after they are processed and formed.

[0036] A mounting hole 2 is provided at one end of the thread take-up lever 1. During installation, the thread take-up lever 1 is held in one hand and the button 7 on the surface of the two connecting posts 41 is pressed with the other hand. The button 7 drives the two connecting posts 41 to slide close to each other on the surface of the guide rod 43. At this time, the two connecting posts 41 squeeze the reset spring 5. When the two connecting posts 41 are close to each other, the plugs 44 at the other ends are close to each other, so that the outer diameter distance of the two plugs 44 is smaller than the mounting hole 2. The plug 44 is passed through the inside of the mounting hole 2 so that the thread take-up lever 1 contacts the retaining ring 45 in the middle of the connecting post 41. At this time, the button 7 is released, and the reset spring 5 pushes the two connecting posts 41 apart, so that the edge of the mounting hole 2 is inserted into the anti-slip groove 46 provided at the connection between the connecting post 41 and the plug 44 to prevent the plug 44 from detaching from the mounting hole 2. At this time, the installation of the thread take-up lever 1 and the sewing machine is completed. When disassembling, press the button 7 to remove the thread take-up lever 1 away from the connecting post 41.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for technical personnel in the field to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A thread take-up lever, characterized in that: include: A thread take-up lever (1), wherein one end of the thread take-up lever (1) is provided with a mounting hole (2), and the other end of the thread take-up lever (1) is connected to a thread take-up portion (3); A mounting assembly (4), the mounting assembly (4) comprising two connecting columns (41) arranged on the surface of the sewing machine, one end of the two connecting columns (41) being provided with a sliding hole (42), the interior of the sliding hole (42) being inserted and connected with a guide rod (43), the guide rod (43) being fixedly connected to the sewing machine, and the other end of the two connecting columns (41) being fixedly connected with a plug (44), the plug (44) being inserted and connected with the interior of the mounting hole (2); A return spring (5) is sleeved on the middle part of the guide rod (43), and two ends of the return spring (5) are respectively in contact with and connected to one side of two connecting columns (41).

2. The thread take-up lever according to claim 1, characterized in that: A retaining ring (45) is fixedly connected to the middle of the two connecting columns (41), an anti-slip groove (46) is provided at the connection between the connecting column (41) and the plug (44), and the edge of the mounting hole (2) is inserted into the anti-slip groove (46).

3. The thread take-up lever according to claim 1, characterized in that: Both ends of the guide rod (43) are fixedly connected to limit rings (6).

4. The thread take-up lever according to claim 1, characterized in that: Snap buttons (7) are fixedly mounted on the surfaces of the two connecting columns (41), and anti-slip grooves (8) are provided on the surfaces of the snap buttons (7).

5. The thread take-up lever according to claim 1, characterized in that: The thread taking-up portion (3) comprises a first thread passing groove (31) formed at the edge of the other end of the thread taking-up rod (1), and a second thread passing groove (32) is formed at the other end of the thread taking-up rod (1) near the first thread passing groove (31).

6. The thread take-up lever according to claim 1, characterized in that: Reinforcing ribs (9) are provided on both sides of the thread take-up lever (1).

7. A thread take-up rod bending and rebound control device, used for processing the thread take-up rod as claimed in any one of claims 1 to 6, characterized in that: include: A first mold (10) and a second mold (11), wherein a drop is provided at the connection between the first mold (10) and the second mold (11), a slider (12) is slidably mounted on the surface of the second mold (11), the top of the slider (12) is connected to a support frame (13), the top of the support frame (13) is threadedly connected to a screw rod (14), a pressing block (15) is rotatably mounted at the bottom end of the screw rod (14), and the pressing block (15) is pressed tightly against the bending portion at the connection between the thread taking-up portion (3) and the thread taking-up rod (1).

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