Thread stand for bar tacking machine

Abstract

The utility model discloses a thread stand for a bar tacking machine, which comprises a base, the base is rotatably connected with a rotary table, and a tower-shaped thread coil is connected above the rotary table in a press fit manner; the rotary table comprises a first telescopic rod, the two sides of the first telescopic rod are rotationally and slidably connected with rotary pressing plates, clamping blocks are rotationally connected to the lower portions of the rotary pressing plates, the bottom of the first telescopic rod is fixedly connected with two guide plates, one guide plate is rotationally and slidably connected with a first connecting rod, and the end, away from the guide plate, of the first connecting rod is rotationally and slidably connected with a first elastic column; the annular bottom plate downwards presses the first elastic column, the first elastic column drives the first telescopic rod to move upwards, the rotary pressing plate is driven to clamp and press the inner ring, the inner ring is clamped and pressed through the rotary pressing plate, the inner ring is clamped and pressed through the rotary pressing plate, and the inner ring is clamped and pressed through the rotary pressing plate. The first telescopic rod drives the second connecting rod to drive the fixed rod to move outwards while moving upwards, and the second elastic column extends out and is clamped on the outer wall of the rotary table, so that the stability of the coil holder is improved.

Description

Technical Field

[0001] This utility model belongs to the technical field of bar knotting machines, and in particular relates to a bar knotting machine wire frame. Background Technology

[0002] A bartacking machine, also called a bartacking machine or knotting machine, is a type of machinery used in garment manufacturing. Its main purpose is to reinforce seams at stress points in garments, reinforce the ends of rounded buttonholes, and lock the top of the buttonhole. The bartacking machine's thread rack is used to hold the thread spool. The thread is pulled by the bartacking machine, causing the thread spool to rotate, thus supplying thread to the bartacking machine.

[0003] However, existing technologies have some problems: the wire frame of existing bar knotting machines is mostly made of very thin rods for holding the wire coils. When the wire coils are wrapped around the thin rods, they are prone to shaking during rotation. When the bar knotting machine pulls too fast or the tension is too great, the wire coils are prone to falling off. Therefore, we propose a wire frame for bar knotting machines. Utility Model Content

[0004] To address the problems existing in the prior art, the purpose of this utility model is to provide a wire frame for a knotting machine. By pressing the first elastic column downward with the annular base plate, the first elastic column drives the first telescopic rod to move upward, which in turn drives the rotating pressure plate to lock and hold the inner ring in place. At the same time, the upward movement of the first telescopic rod drives the second connecting rod to move the fixed rod outward. The second elastic column extends out and locks against the outer wall of the turntable, thereby improving the stability of the wire frame.

[0005] This utility model is implemented as follows: a wire frame for a knotting machine includes a base, a turntable rotatably connected to the base, a tower-shaped wire roll pressed and connected above the turntable, the tower-shaped wire roll including a winding surface, an annular base plate fixedly connected to the bottom of the winding surface, an inner ring provided above the annular base plate, and the inner ring fixedly connected to the inside of the winding surface.

[0006] The turntable includes a first telescopic rod, with rotating pressure plates rotatably slidably connected to both sides of the first telescopic rod. The bottom of the rotating pressure plates is pressed into the inner ring. A locking block is rotatably connected below the rotating pressure plates and is fixedly connected to the turntable. Two sets of guide plates are fixedly connected to the bottom of the first telescopic rod. One set of guide plates is rotatably slidably connected to a first connecting rod. The end of the first connecting rod away from the guide plate is rotatably slidably connected to a first elastic column. The middle position of the first connecting rod is rotatably connected to the interior of the turntable. The other set of guide plates is rotatably slidably connected to a second connecting rod. The end of the second connecting rod away from the guide plate is rotatably connected to a fixed rod. The fixed rod passes through the turntable, and the portion of the fixed rod extending out of the turntable is elastically connected to a second elastic column.

[0007] Optionally, a first adjusting spring is fixedly connected to the bottom of the first elastic column, and the first elastic column is elastically connected to the inside of the turntable through the first adjusting spring.

[0008] Optionally, a second adjusting spring is fixedly connected to the bottom of the second elastic column, and the second elastic column and the fixed rod are elastically connected through the second adjusting spring.

[0009] Optionally, both the first link and the second link are rotatably connected to a slider at the end near the guide plate, and a limit groove is provided on the guide plate, through which the slider and the guide plate are slidably connected.

[0010] Optionally, a telescopic block is fixedly connected to the upper end of the first telescopic rod, and U-shaped grooves are provided on both sides of the telescopic block.

[0011] Optionally, a first sliding shaft is fixedly connected to one end of the rotating pressure plate near the telescopic block, and the first sliding shaft is rotatably and slidably connected to the telescopic block through a U-shaped groove.

[0012] Optionally, a sliding groove is provided at one end of the first elastic column near the first connecting rod, and a second sliding shaft is fixedly connected at one end of the first connecting rod near the first elastic column. The second sliding shaft and the first elastic column are rotatably slidably connected through the sliding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The first elastic column is pressed down by the annular base plate. The first elastic column drives the first telescopic rod to move upward, which drives the rotating pressure plate to lock and press the inner ring. At the same time, the upward movement of the first telescopic rod drives the second connecting rod to move outward. The second elastic column extends and locks against the outer wall of the turntable, thereby improving the stability of the wire frame.

[0015] Other features and advantages of the present invention will become clear from the following detailed description of exemplary embodiments of the present invention with reference to the accompanying drawings. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure provided by this utility model;

[0017] Figure 2 This is a front view of the interior of the turntable provided by this utility model;

[0018] Figure 3 This utility model provides Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the reverse side of the turntable provided by this utility model;

[0020] Figure 5 This is a schematic diagram of the tower-shaped wire coil provided by this utility model;

[0021] Figure 6 This is a schematic cross-sectional view of the turntable and tower-shaped wire coil provided by this utility model;

[0022] Figure 7 This is a schematic diagram of the inner ring engagement provided by this utility model;

[0023] Figure 8 This is a partial cross-sectional schematic diagram of the fixing rod provided by this utility model;

[0024] Figure 9 This is a partial cross-sectional schematic diagram of the first elastic column provided by this utility model;

[0025] Figure 10 This is a schematic diagram of the telescopic block provided by this utility model.

[0026] In the diagram: 1. Base; 2. Tower-shaped wire coil; 201. Wire coil surface; 202. Annular base plate; 203. Inner ring; 3. Turntable; 301. First elastic column; 302. First adjusting spring; 303. First connecting rod; 304. Rotating pressure plate; 305. First telescopic rod; 306. Locking block; 307. Second connecting rod; 308. Fixed rod; 309. Second elastic column; 310. Guide plate; 311. Second adjusting spring; 312. Slider; 313. Second sliding shaft; 314. Telescopic block; 315. First sliding shaft; 4. Sliding groove. Detailed Implementation

[0027] To further understand the utility model content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0028] like Figures 1 to 10As shown in the embodiment of this utility model, a wire frame for a knotting machine includes a base 1, a turntable 3 rotatably connected to the base 1, a tower-shaped wire roll 2 pressed and connected above the turntable 3, the tower-shaped wire roll 2 including a winding surface 201, an annular base plate 202 fixedly connected to the bottom of the winding surface 201, an inner ring 203 provided above the annular base plate 202, and the inner ring 203 fixedly connected to the inside of the winding surface 201; the turntable 3 includes a first telescopic rod 305, rotating pressure plates 304 rotatably and slidably connected to both sides of the first telescopic rod 305, the bottom of the rotating pressure plate 304 pressed and connected to the inner ring 203, and a locking block 30 rotatably connected below the rotating pressure plate 304. 6. The locking block 306 is fixedly connected to the turntable 3. The bottom of the first telescopic rod 305 is fixedly connected to two sets of guide plates 310. One set of guide plates 310 is rotatably and slidably connected to the first connecting rod 303. The end of the first connecting rod 303 away from the guide plate 310 is rotatably and slidably connected to the first elastic column 301. The middle position of the first connecting rod 303 is rotatably connected to the inner side of the turntable 3. The other set of guide plates 310 is rotatably and slidably connected to the second connecting rod 307. The end of the second connecting rod 307 away from the guide plate 310 is rotatably connected to the fixed rod 308. The fixed rod 308 passes through the turntable 3. The part of the fixed rod 308 extending out of the turntable 3 is elastically connected to the second elastic column 309.

[0029] like Figures 1 to 8 As shown, the operator can place the tower-shaped coil 2, which is fully wound with wire, on the turntable 3 to press it tightly, and then lead the wire out to the knotting machine for use.

[0030] Specifically, the operator places the tower-shaped wire coil 2 on the turntable 3 and presses it down. At this time, the annular bottom plate 202 at the bottom of the tower-shaped wire coil 2 presses the first elastic column 301 downward. The first elastic column 301 drives the first telescopic rod 305 to move upward through the first connecting rod 303. The first telescopic rod 305 pushes one end of the rotating pressure plate 304 upward. At the same time, the middle of the rotating pressure plate 304 rotates with the locking block 306, so that the other end presses the inner ring 203 inside the tower-shaped wire coil 2 downward. The upward movement of the first telescopic rod 305 also drives the second connecting rod 307 to move. The second connecting rod 307 pushes the fixed rod 308 to move outward in the groove on the turntable 3. At the same time, the second elastic column 309 pops out after extending out of the turntable 3 and locks onto the outer wall of the turntable 3 to achieve the locking function.

[0031] It is worth noting that the fixed rod 308 is always inside the through hole in the turntable 3 during the extension and retraction process. To prevent the fixed rod 308 from excessively slipping when the first telescopic rod 305 moves excessively, the length of the limiting groove on the guide plate 310 can be reasonably specified to avoid this situation.

[0032] Furthermore, a first adjusting spring 302 is fixedly connected to the bottom of the first elastic column 301, and the first elastic column 301 is elastically connected to the inside of the turntable 3 through the first adjusting spring 302.

[0033] like Figure 2 , Figure 7 As shown, when the annular base plate 202 is pressed down, the first elastic column 301 moves downward by compressing the first adjusting spring 302. When the tower-shaped wire coil 2 is removed, the first adjusting spring 302 bounces the first elastic column 301 upward.

[0034] Furthermore, a second adjusting spring 311 is fixedly connected to the bottom of the second elastic column 309, and the second elastic column 309 and the fixed rod 308 are elastically connected through the second adjusting spring 311.

[0035] like Figure 4 , Figure 8 As shown, the fixed rod 308 extends outward under the push of the second connecting rod 307. When the second elastic column 309 extends out of the turntable 3, the second adjusting spring 311 springs up, pushing the second elastic column 309 to extend upward and engage with the outer wall of the turntable 3, thus playing a locking and pressing role. When replacing the coil, simply press the second elastic column 309 down and push the fixed rod 308 towards the turntable 3 to remove and replace the tower-shaped coil 2.

[0036] Furthermore, the first link 303 and the second link 307 are both rotatably connected to sliders 312 at the ends near the guide plate 310. The guide plate 310 has a limit groove, and the sliders 312 and the guide plate 310 are slidably connected through the limit groove.

[0037] like Figures 2 to 3 As shown, both the first link 303 and the second link 307 are rotatably connected to sliders 312 near the guide plate 310. When the first elastic post 301 is pressed down, the slider 312 on it slides away from the first elastic post 301 under the action of the first link 303. When the first elastic post 301 is lifted up, the slider 312 slides closer to the first elastic post 301 under the action of the first link 303. When the first telescopic rod 305 moves upward, the slider 312 on the second link 307 slides away from the fixed rod 308. When the first telescopic rod 305 moves downward, the slider 312 slides closer to the fixed rod 308.

[0038] Furthermore, a telescopic block 314 is fixedly connected to the upper end of the first telescopic rod 305, and U-shaped grooves are provided on both sides of the telescopic block 314; a first sliding shaft 315 is fixedly connected to one end of the rotating pressure plate 304 near the telescopic block 314, and the first sliding shaft 315 and the telescopic block 314 are rotatably and slidably connected through the U-shaped groove.

[0039] like Figure 6 , Figure 7 and Figure 10As shown, when the first telescopic rod 305 moves upward, the rotating pressure plate 304 rotates to open on both sides to press the inner ring 203 inside the tower-shaped wire coil 2. When the first telescopic rod 305 moves downward, the rotating pressure plate 304 retracts and rotates towards the center to facilitate the replacement of the tower-shaped wire coil 2.

[0040] It is worth noting that the telescopic block 314 has U-shaped grooves on both sides instead of simple round holes, which increases the degree of freedom of the rotating pressure plate 304 and can apply greater pressing force to the inner ring 203. In addition, the depth of the U-shaped groove is reasonably set so that the first sliding shaft 315 is always rotated and slidably connected in the U-shaped groove.

[0041] Furthermore, a sliding groove 4 is provided at one end of the first elastic column 301 near the first connecting rod 303, and a second sliding shaft 313 is fixedly connected at one end of the first connecting rod 303 near the first elastic column 301. The second sliding shaft 313 and the first elastic column 301 are rotatably and slidably connected through the sliding groove 4.

[0042] like Figure 9 As shown, when the first elastic post 301 is pressed down, the second sliding shaft 313 slides and rotates in the sliding groove 4 towards the side closer to the first elastic post 301. When the first elastic post 301 is lifted up, the second sliding shaft 313 slides and rotates in the sliding groove 4 towards the side farther away from the first elastic post 301.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wire frame for a knotting machine, comprising a base (1), characterized in that: The base (1) is rotatably connected to a turntable (3), and a tower-shaped wire coil (2) is pressed and connected above the turntable (3). The tower-shaped wire coil (2) includes a winding surface (201), and an annular base plate (202) is fixedly connected to the bottom of the winding surface (201). An inner ring (203) is provided above the annular base plate (202), and the inner ring (203) is fixedly connected to the inside of the winding surface (201). The turntable (3) includes a first telescopic rod (305), on both sides of which a rotating pressure plate (304) is rotatably and slidably connected. The bottom of the rotating pressure plate (304) is pressed and connected to the inner ring (203). A locking block (306) is rotatably connected below the rotating pressure plate (304). The locking block (306) is fixedly connected to the turntable (3). Two sets of guide plates (310) are fixedly connected to the bottom of the first telescopic rod (305). One set of guide plates (310) is rotatably and slidably connected to a first connecting rod (303). The first elastic column (301) is rotatably and slidably connected to the end of the rod (303) away from the guide plate (310). The middle position of the first connecting rod (303) is rotatably connected to the inner side of the turntable (3). The other set of guide plates (310) is rotatably and slidably connected to the second connecting rod (307). The second connecting rod (307) is rotatably connected to the fixed rod (308) at the end away from the guide plate (310). The fixed rod (308) passes through the turntable (3). The part of the fixed rod (308) extending out of the turntable (3) is elastically connected to the second elastic column (309).

2. The wire frame for a knotting machine according to claim 1, characterized in that: The bottom of the first elastic column (301) is fixedly connected to a first adjusting spring (302), and the first elastic column (301) is elastically connected to the inside of the turntable (3) through the first adjusting spring (302).

3. A wire frame for a knotting machine according to claim 2, characterized in that: The bottom of the second elastic column (309) is fixedly connected to a second adjusting spring (311), and the second elastic column (309) and the fixed rod (308) are elastically connected through the second adjusting spring (311).

4. A wire frame for a knotting machine according to claim 3, characterized in that: The first connecting rod (303) and the second connecting rod (307) are rotatably connected to a slider (312) at the end near the guide plate (310). A limiting groove is provided on the guide plate (310), and the slider (312) is slidably connected to the guide plate (310) through the limiting groove.

5. A wire frame for a knotting machine according to claim 4, characterized in that: The upper end of the first telescopic rod (305) is fixedly connected to a telescopic block (314), and the telescopic block (314) has U-shaped grooves on both sides.

6. A wire frame for a knotting machine according to claim 5, characterized in that: The rotating pressure plate (304) is fixedly connected to a first sliding shaft (315) at one end near the telescopic block (314). The first sliding shaft (315) and the telescopic block (314) are rotatably and slidably connected through a U-shaped groove.

7. A wire frame for a knotting machine according to claim 6, characterized in that: The first elastic column (301) has a sliding groove (4) at one end near the first connecting rod (303), and a second sliding shaft (313) is fixedly connected at one end of the first connecting rod (303) near the first elastic column (301). The second sliding shaft (313) and the first elastic column (301) are rotatably and slidably connected through the sliding groove (4).

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