A quick-release chuck for sewing machine needle

Abstract

The utility model discloses a sewing machine needle quick-release chuck, comprising a connecting plate, a rotating device and a needle body, wherein the lower surface of the connecting plate is fixedly connected with a fixed ring plate, and the left and right ends of the top front side of the fixed ring plate are provided with storage grooves, the left end of the storage groove is rotatably connected with a rotating device inside, and the middle lower end of the rotating device is connected with the needle body through and through, the right upper end of the fixed ring plate is slidably connected with a positioning block, and the rear upper end of the positioning block is threadedly connected with a first stabilizing bolt, the middle lower end of the rotating device is sleeved and connected with a fastening ring outside, and the front middle of the fastening ring is connected with a second stabilizing bolt through and through, the rotating device is composed of a fixed sleeve, a connecting block, a left support rod, a rotating rod, a handle and a right support rod, and the middle upper ends of the front and rear sides of the fixed sleeve are fixedly connected with the connecting block. The sewing machine needle quick-release chuck is convenient for installing needle bodies of different sizes, and is convenient for installing the needle body after the fixed sleeve is turned out.

Description

Technical Field

[0001] The utility model relates to the technical field related to sewing machines, in particular to a quick-loading chuck for sewing machine needles. Background Art

[0002] The sewing machine needle is one of the indispensable accessories of the sewing machine. The sewing machine needle can sew the sewing materials, and the assembly position of the needle determines whether it is prone to faults such as needle breakage during operation. The sewing machine needle requires a chuck to be fixed on the sewing machine.

[0003] The existing sewing machine needle quick-release chuck has the problem of inconvenient size adjustment. For example, the Chinese utility model patent with authorization announcement number CN103741391A discloses a sewing machine needle quick-release chuck, including a needle seat for installing a needle, a connecting rod is provided on the top of the needle seat, a groove is provided at the bottom of the needle seat, guide grooves are provided on both sides of the groove, a needle plate for assembling the needle is slidably provided in the guide groove, a needle hole is provided on the needle seat at the top of the needle plate, a stopper is slidably provided in the needle hole, a rectangular hole communicating with the groove is provided on the side of the needle seat, a pressure plate movably connected by a pin shaft is provided in the rectangular hole, the pressure plate is movably connected to the needle plate; the pressure plate and the needle plate are connected by an axis. This sewing machine needle quick-release chuck realizes the installation and removal of the needle through the lever principle, does not require other auxiliary tools, has a relatively fast installation and removal speed, and can be positioned by itself, which is convenient and fast, and improves efficiency, but this device is not convenient to adjust the size. Therefore, we propose a sewing machine needle quick-release chuck to solve the above-mentioned problems. Utility Model Content

[0004] The utility model aims to provide a sewing machine needle quick-release chuck to solve the problem of inconvenient size adjustment of the existing sewing machine needle quick-release chuck mentioned in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a sewing machine needle quick-release chuck, comprising a connecting plate, a rotating device and a needle body, the lower surface of the connecting plate is fixedly connected to a fixed ring plate, and the left and right ends of the top front side of the fixed ring plate are provided with storage grooves, the inner side of the left end of the storage groove is rotatably connected to the rotating device, and the middle lower end of the rotating device is penetrated and connected to the needle body;

[0006] The upper right end of the fixed ring plate is slidably connected with a positioning block, and the upper rear end of the positioning block is threadedly connected with a first fixing bolt, the outer side of the lower middle end of the rotating device is sleeved with a fastening ring, and the middle front side of the fastening ring is penetrated with a second fixing bolt.

[0007] Preferably, the rotating device is composed of a fixed sleeve, a connecting block, a left support rod, a rotating rod, a handle, and a right support rod. The upper middle ends of the front and rear sides of the fixed sleeve are fixedly connected to the connecting blocks, and the middle left portion of the fixed sleeve is fixedly connected to the left support rod, and the upper and lower middle ends of the left support rod are fixedly connected to the rotating rod, and the left side of the left support rod is fixedly connected to the handle, and the middle right portion of the fixed sleeve is fixedly connected to the right support rod.

[0008] Preferably, the fixing sleeve is divided into two parts, a left part and a right part, and the front and rear ends of the inner top of the fixing sleeve are fixedly connected with connecting blocks.

[0009] Preferably, the upper and lower ends of the rotating rod are both rotatably connected to the fixed ring plate.

[0010] Preferably, the top end of the needle body is slidably connected to the middle part of the fixed sleeve.

[0011] Preferably, the front and rear ends of the left side of the positioning block are fixedly connected with cylindrical protrusion blocks, and the protrusion block at the front end of the left side of the positioning block is slidably connected to the right end of the right support rod, and the protrusion block at the rear end of the left side of the positioning block is slidably connected to the right end of the fixed ring plate.

[0012] Preferably, the fastening ring is sleeve-connected to the outer bottom end of the fixing sleeve.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the sewing machine needle quick-release chuck is convenient for installing needle bodies of different sizes, and is convenient for installing the needle body after rotating out the fixing sleeve;

[0014] 1. Insert the needle body from the upper end of the fixing sleeve. When the needle body falls to the appropriate position, pinch the bottom end of the fixing sleeve to fix the needle body, and then tighten the second fixing bolt at the front end of the fastening ring. The left end of the second fastening bolt is threaded with a nut to facilitate the installation of needle bodies of different sizes.

[0015] 2. The upper end of the fixed sleeve is fixedly connected with a connecting plate. Pull out the positioning block on the upper right end of the fixed ring plate, hold the handle and move it backward, and the fixed sleeve can be moved from the middle of the fixed ring plate to the front side, which is convenient for installing the needle body after the fixed sleeve is turned out. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a perspective structural diagram of the fixed ring plate and the rotating device of the utility model;

[0017] Figure 2 This is a schematic diagram of the front view cutaway structure of the utility model;

[0018] Figure 3 It is a side view cutaway structural schematic diagram of the utility model;

[0019] Figure 4It is a schematic diagram of the cutaway structure of the utility model from above.

[0020] In the figure: 1. connecting plate; 2. fixing ring plate; 3. storage slot; 4. rotating device; 401. fixing sleeve; 402. connecting block; 403. left support rod; 404. rotating rod; 405. handle; 406. right support rod; 5. needle body; 6. positioning block; 7. first fixing bolt; 8. fastening ring; 9. second fixing bolt. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4 The utility model provides a technical solution: a sewing machine needle quick-release chuck, comprising a connecting plate 1, a fixed ring plate 2, a storage groove 3, a rotating device 4, a fixed sleeve 401, a connecting block 402, a left support rod 403, a rotating rod 404, a handle 405, a right support rod 406, a needle body 5, a positioning block 6, a first stabilizing bolt 7, a fastening ring 8 and a second stabilizing bolt 9.

[0023] The connecting plate 1 is cylindrical, and a fixed ring plate 2 is fixedly connected to the lower end of the connecting plate 1. A hole is provided at the front end of the fixed ring plate 2, and a storage groove 3 is provided at the front end of the upper end of the fixed ring plate 2. The storage groove 3 is rotatably connected to a rotating device 4 inside. The rotating device 4 is composed of a fixed sleeve 401, a connecting block 402, a left support rod 403, a rotating rod 404, a handle 405, and a right support rod 406. The fixed sleeve 401 is divided into left and right parts, and the upper ends of the front and rear sides between the parts of the fixed sleeve 401 are fixedly connected with the connecting block 402. The fixed sleeve 401 is divided into two parts in order to leave a gap for installing needle bodies 5 of different sizes. The left middle part of the fixed sleeve 401 is fixedly connected with the left support rod 403, and the upper and lower ends of the middle part of the left support rod 403 are fixedly connected with the rotating rod 404. The upper and lower ends of the rotating rod 404 are rotatably connected to the fixed ring plate 2, and the left side of the left support rod 403 is fixedly connected with the handle 405. A right support rod 406 is fixedly connected to the middle part of the right side of the fixing sleeve 401, and a groove is provided at the right end of the right support rod 406, and a positioning block 6 is slidably connected to the upper right end of the fixing ring plate 2, and a first fixing bolt 7 is threadedly connected to the upper rear end of the positioning block 6, and the left end of the first fixing bolt 7 is threadedly connected to the fixing ring plate 2, and a cylindrical convex block is fixedly connected to the front and rear ends of the left side of the positioning block 6, and the convex block at the rear end of the left side of the positioning block 6 is slidably connected to the fixing ring plate 2, and the convex block at the front end of the left side of the positioning block 6 is slidably connected to the groove provided at the right end of the right support rod 406. After unscrewing the first fixing bolt 7, pull the positioning block 6 to the right side, so that the convex block at the front end of the left side of the positioning block 6 is disengaged from the groove provided at the right end of the right support rod 406, and then hold the handle 405 and move the handle 405 backward to make the fixing sleeve 401 turn out of the hole at the front end of the fixing ring plate 2, so that the needle body 5 can be inserted into the fixing sleeve 401 from the upper end of the fixing sleeve 401;

[0024] The lower end of the outer side of the fixing sleeve 401 is sleeved and connected with a fastening ring 8, which is divided into two parts, the rear ends of the left and right parts of the fastening ring 8 are connected by hinges so that the left and right parts of the fastening ring 8 can rotate, and the front ends of the left and right parts of the fastening ring 8 are fixedly connected with raised blocks, and the middle part of the raised block at the front end of the fastening ring 8 is slidably connected with a second fixing bolt 9, and the left end of the second fixing bolt 9 is threadedly connected with a nut. After the needle body 5 is inserted into the fixing sleeve 401, the second fixing bolt 9 is tightened so that the fastening ring 8 can tighten the bottom end of the fixing sleeve 401 inward, thereby Fix the upper end of the needle body 5. After installing the needle body 5, hold the handle 405 and move the handle 405 forward to rotate the fixed sleeve 401 back to the inside of the fixed ring plate 2. Finally, insert the protruding blocks set at the front and rear ends of the left side of the positioning block 6 into the right side grooves of the right support rod 406 and the fixed ring plate 2 respectively. After tightening the first fixing bolt 7, the rotating device 4 can be fixed on the fixed ring plate 2. The above completes a series of operations of the sewing machine needle quick-release chuck. The contents not described in detail in this description belong to the existing technology known to professional and technical personnel in this field.

[0025] The standard parts used in the utility model can all be purchased from the market, and special-shaped parts can be customized according to the instructions and the drawings. The specific connection methods of each part adopt the conventional means such as mature bolts, rivets, welding, etc. in the existing technology. The machinery, parts and equipment all adopt the conventional models in the existing technology, and the circuit connection adopts the conventional connection method in the existing technology, which will not be described in detail here.

[0026] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or 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 sewing machine needle quick-release chuck, comprising a connecting plate (1), a rotating device (4) and a needle body (5), characterized in that: The lower surface of the connecting plate (1) is fixedly connected to a fixed ring plate (2), and the top front side of the fixed ring plate (2) is provided with storage grooves (3) at both left and right ends, and the left end of the storage groove (3) is rotatably connected to a rotating device (4) at the inner side, and the middle lower end of the rotating device (4) is penetrated and connected to the organic needle body (5); A positioning block (6) is slidably connected to the upper right end of the fixed ring plate (2), and a first fixing bolt (7) is threadedly connected to the upper rear end of the positioning block (6). A fastening ring (8) is sleeved and connected to the outer side of the lower middle end of the rotating device (4), and a second fixing bolt (9) is penetrated and connected to the middle of the front side of the fastening ring (8).

2. A sewing machine needle quick-release chuck according to claim 1, characterized in that: The rotating device (4) is composed of a fixed sleeve (401), a connecting block (402), a left support rod (403), a rotating rod (404), a handle (405), and a right support rod (406). The upper ends of the middle parts of the front and rear sides of the fixed sleeve (401) are fixedly connected to the connecting block (402), the middle part of the left side of the fixed sleeve (401) is fixedly connected to the left support rod (403), the upper and lower ends of the middle part of the left support rod (403) are fixedly connected to the rotating rod (404), the left side of the left support rod (403) is fixedly connected to the handle (405), and the middle part of the right side of the fixed sleeve (401) is fixedly connected to the right support rod (406).

3. A sewing machine needle quick-release chuck according to claim 2, characterized in that: The fixing sleeve (401) is divided into two parts, the left and the right, and the front and rear ends of the top inner side of the fixing sleeve (401) are fixedly connected to connecting blocks (402).

4. A sewing machine needle quick-release chuck according to claim 2, characterized in that: The upper and lower ends of the rotating rod (404) are both rotatably connected to the fixed ring plate (2).

5. The sewing machine needle quick-release chuck according to claim 1, characterized in that: The top end of the needle body (5) is slidably connected to the middle part of the fixing sleeve (401).

6. A sewing machine needle quick-release chuck according to claim 1, characterized in that: The front and rear ends of the left side of the positioning block (6) are fixedly connected to cylindrical protruding blocks, and the protruding block at the front end of the left side of the positioning block (6) is slidably connected to the right end of the right support rod (406), and the protruding block at the rear end of the left side of the positioning block (6) is slidably connected to the right end of the fixed ring plate (2).

7. The sewing machine needle quick-release chuck according to claim 1, characterized in that: The fastening ring (8) is sleeved and connected to the outer bottom end of the fixing sleeve (401).

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