Double-needle novel thread rack

Abstract

The utility model discloses a novel wire frame of double needle, the utility model relates to sewing machine accessory technical field, including vertical rod support, the bottom dead fixed setting of vertical rod support has the support pole, the top of support pole is provided with a plurality of restriction mechanism. The rotation of threaded rod can make the downward movement of the circular ring, the downward movement of the circular ring makes the changeable rod become horizontal state from the inclined state, and the sliding plate is moved, and the sliding plate slides to the outside in the hole groove of mounting plate, finally, the rotary plate that is rotatably connected with the sliding plate is pushed out outward, and the rotary plate gradually contacts the inner wall of the bobbin together, when the bobbin rotates, the sliding friction is changed into the rolling friction through the rotary plate, and the contact mode greatly reduces the resistance of the bobbin rotation, ensures that the silk thread can be smoothly and evenly drawn, directly improves the evenness and the aesthetic degree of double needle stitch, effectively prevents the bobbin from shaking or eccentric when high -speed rotation.

Description

Technical Field

[0001] This utility model relates to the field of sewing machine accessories technology, specifically a novel double-needle thread holder. Background Technology

[0002] As a major piece of equipment in the garment processing industry, sewing machines can stitch fabric together to complete the manufacture of garments. Furthermore, sewing machines for different purposes are designed with unique matching structures according to their usage requirements.

[0003] According to patent application number CN202420018835.9, this utility model relates to the field of sewing machine technology, and in particular to a thread holder for a sewing machine. The operator places a spool containing a coil through a guide post on the top of a tray. By using a hex wrench to rotate the rod, the movable block drives the slider to slide. When the slider slides, the cooperation between the connecting block, connecting rod, and connecting seat causes the abutment to slide laterally, clamping and fixing the spool from the inside. At the same time, the sliding abutment facilitates clamping and fixing spools of different diameters. In use, because the diameter of the spool rod is fixed, it cannot accommodate spools with different inner diameters. During the high-speed release of the thread, the spool will produce violent eccentric shaking. If an adjustable clamping arm is used to clamp from the inside of the spool, the contact with the inner wall of the spool is usually sliding friction. The large resistance generated not only affects the smoothness of the thread output, but in some cases, it may even hinder the normal rotation of the spool, creating a "dragging" effect and affecting the thread output.

[0004] Further searching patent application number CN201920009999.4 reveals a sewing machine thread feeder with adjustable height that is easy to fix. The felt attached to this adjustable thread feeder effectively increases the friction between the thread spool and the feeder. This allows the spool to rotate around the shaft for thread feeding, preventing thread breakage. It also reduces the rotational inertia of the spool during thread feeding, preventing excessive thread feeding and tangling. However, because the diameter of the spool is fixed, it cannot accommodate spools with varying inner diameters. During high-speed thread feeding, the spool experiences severe eccentric shaking. If an adjustable clamping arm is used to press against the spool from the inside, the contact with the inner wall is usually sliding friction. This significant resistance not only affects the smoothness of thread feeding but can also, in some cases, hinder the normal rotation of the spool, creating a "dragging" effect and affecting thread feeding. Summary of the Invention

[0005] To address the shortcomings of existing technologies, this utility model provides a novel double-needle wire frame. The rotation of the threaded rod causes the ring to move downwards. Since the top and bottom ends of the variable rod are rotatably connected to corresponding connecting rods, the downward movement of the ring causes the variable rod to change from an inclined state to a horizontal state, pushing the sliding plate to move. The sliding plate slides outwards within the slot of the mounting plate, and finally, the rotating plate, rotatably connected to the sliding plate, is pushed outwards, gradually contacting the inner wall of the wire spool. This allows the rotating plate to adapt to wire spools of different diameters, improving its adaptability. During the rotation of the wire spool, the rotating plate transforms sliding friction into rolling friction. This connection... The contact method greatly reduces the resistance of the spool rotation, ensuring that the thread can be drawn out smoothly and evenly, directly improving the uniformity and aesthetics of double-needle stitches. It effectively prevents the spool from shaking or becoming eccentric during high-speed rotation, solving the problem that the fixed diameter of the spool rod cannot adapt to spools with different inner diameters. This prevents the spool from experiencing severe eccentric shaking during high-speed thread release. If an adjustable clamping arm is used to hold the spool in place from the inside, the contact with the inner wall of the spool is usually a sliding friction contact. The resulting resistance not only affects the smoothness of thread delivery but may also, in some cases, hinder the normal rotation of the spool, creating a "dragging" effect that affects thread delivery.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a novel double-needle wire frame, including a pole support, a support rod fixedly provided at the bottom end of the pole support, a plurality of limiting mechanisms provided at the top of the support rod, a crossbar provided above the limiting mechanisms, the pole support passing through the crossbar, and a wire guide bar provided above the crossbar.

[0007] The limiting mechanism includes a spool, with an axis rod fixedly mounted on the top of the spool. The surface of the axis rod has a groove, and a threaded rod is disposed inside the groove. A moving block is disposed on the outer side of the bottom end of the threaded rod, and the moving block is threadedly connected to the threaded rod. A mounting plate is disposed above the spool and is fixedly connected to the axis rod. Rotating plates are disposed at the top of both ends of the mounting plate, and the cross-sectional shape of the rotating plates is circular. Movable rods are disposed on both sides of the axis rod, and the bottom ends of the movable rods are arc-shaped.

[0008] Preferably, the moving block is located inside the groove and is slidably connected to the groove.

[0009] Preferably, a round rod is provided below the wire guide rod, and both the round rod and the wire guide rod have a plurality of wire holes on their surfaces.

[0010] Preferably, the top surfaces at both ends of the mounting plate are provided with slots, and a sliding plate is provided inside the slot, and the sliding plate is slidably connected to the slot.

[0011] Preferably, the sliding plate is rotatably connected to the bottom end of the rotating plate, and a push plate is provided on the side of the rotating plate near the axis rod.

[0012] Preferably, the bottom end of the push plate is fixedly connected to the sliding plate, a ring is provided above the mounting plate, the moving block is fixedly connected to the inner wall of the ring, and the axis rod passes through the ring and contacts the ring.

[0013] Preferably, connecting rods are fixedly provided on the side of the push plate near the variable rod at the top and on both sides of the bottom of the ring, and the top and bottom of the variable rod are rotatably connected to the corresponding connecting rods.

[0014] Preferably, the connecting rod passes through the end of the variable rod and is rotatably connected to the connecting rod, and the cross-sectional shape of the connecting rod is U-shaped. Beneficial effects

[0015] This utility model provides a novel double-needle wire frame. Compared with the prior art, it has the following advantages: 1. This novel double-needle thread holder allows the ring to move downwards through the rotation of the threaded rod. Since the top and bottom ends of the variable rod are rotatably connected to the corresponding connecting rods, the downward movement of the ring causes the variable rod to change from an inclined state to a horizontal state, pushing the sliding plate to move. The sliding plate slides outwards within the slot of the mounting plate, and finally, the rotating plate, which is rotatably connected to the sliding plate, is pushed outwards, allowing the rotating plate to gradually contact the inner wall of the thread spool. This allows the rotating plate to adapt to thread spools of different diameters, improving its adaptability. When the thread spool rotates, the rotating plate transforms sliding friction into rolling friction. This contact method greatly reduces the resistance to the rotation of the thread spool, ensuring that the thread can be smoothly and evenly drawn out, directly improving the uniformity and aesthetics of the double-needle stitch, and effectively preventing the thread spool from shaking or becoming eccentric during high-speed rotation.

[0016] 2. This new type of double-needle wire frame has a threaded rod whose top end extends above the axis rod, allowing the threaded rod to rotate and facilitating the operation of the limiting mechanism. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the limiting mechanism of this utility model; Figure 3 For the present utility model Figure 2 Enlarged view of part A in the image; Figure 4 This is a top view of the axis rod and the ring of this utility model.

[0018] In the diagram: 1. Upright support; 2. Restriction mechanism; 201. Wire reel; 202. Axis rod; 203. Groove; 204. Threaded rod; 205. Moving block; 206. Mounting plate; 207. Rotating plate; 208. Variable rod; 209. Sliding plate; 210. Push plate; 211. Ring; 212. Connecting rod; 3. Support rod; 4. Crossbar; 5. Wire guide rod; 6. Round rod. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 2-3 This utility model provides a technical solution: a novel double-needle wire frame, including a pole support 1, a support rod 3 fixedly installed at the bottom end of the pole support 1, a plurality of limiting mechanisms 2 installed at the top of the support rod 3, a crossbar 4 installed above the limiting mechanisms 2, the pole support 1 passing through the crossbar 4, and a wire guide bar 5 installed above the crossbar 4.

[0021] The limiting mechanism 2 includes a coil 201, with an axis rod 202 fixedly mounted on the top of the coil 201. A groove 203 is provided on the surface of the axis rod 202, and a threaded rod 204 is provided inside the groove 203. A moving block 205 is provided on the outer side of the bottom end of the threaded rod 204, and the moving block 205 is threadedly connected to the threaded rod 204. An mounting plate 206 is provided above the coil 201, and the mounting plate 206 is fixedly connected to the axis rod 202. Rotating plates 207 are provided at the top of both ends of the mounting plate 206, and the cross-sectional shape of the rotating plates 207 is circular. A variable rod 208 is provided on both sides of the axis rod 202, and the bottom end and bottom end of the variable rod 208 are arc-shaped.

[0022] The moving block 205 is located inside the groove 203 and is slidably connected to the groove 203, allowing the moving block 205 to move within the groove 203, but only up and down.

[0023] Both ends of the mounting plate 206 have slots on their top surfaces, and sliding plates 209 are installed inside the slots, slidably connected to the slots. The sliding plates 209 are rotatably connected to the bottom of the rotating plate 207. A push plate 210 is installed on the side of the rotating plate 207 near the axis rod 202, and the bottom of the push plate 210 is fixedly connected to the sliding plate 209. A ring 211 is installed above the mounting plate 206, and the moving block 205 is fixedly connected to the inner wall of the ring 211. The axis rod 202 passes through the ring 211 and contacts the ring 211. Connecting rods 212 are fixedly installed on the top of the push plate 210 near the moving rod 208 and on both sides of the bottom of the ring 211. The top and bottom of the moving rod 208 are rotatably connected to the corresponding connecting rods 212. The connecting rod 212 passes through the end of the variable rod 208 and is rotatably connected to the connecting rod 212. The cross-sectional shape of the connecting rod 212 is U-shaped. Since the top and bottom ends of the variable rod 208 are rotatably connected to the corresponding connecting rod 212, the variable rod 208 can change from an inclined state to a horizontal state, causing the push plate 210 on one side of the bottom end of the variable rod 208 to move simultaneously. Because the bottom end of the push plate 210 is fixedly connected to the sliding plate 209, the sliding plate 209 can move simultaneously, causing the rotating plate 207 on the sliding plate 209 to move simultaneously, forcing the sliding plate 209 to slide outward in the hole groove of the mounting plate 206. Finally, the rotating plate 207, which is rotatably connected to the sliding plate 209, is pushed outward, allowing the rotating plate 207 to gradually come into contact with the inner wall of the spool.

[0024] Please see Figure 1 Below the wire guide rod 5, there is a round rod 6. Both the round rod 6 and the wire guide rod 5 have several wire holes on their surfaces. The wires from the spool are pulled out and first pass through the wire holes at the round rod 6, and then through the wire holes at the top of the wire guide rod 5. This ensures the smoothness and order of the wire output process and prevents different wires from mixing.

[0025] During operation, the entire assembly is installed in the designated position, and the spool is placed on the reel 201, so that the axis rod 202 is located inside the spool, thereby allowing the overall limiting mechanism 2 to be located inside the spool. The top of the threaded rod 204 is located at the top of the spool, facilitating the rotation of the threaded rod 204. The threaded rod 204 is then rotated, allowing it to move downwards within the groove 203. Since the threaded rod 204 is threadedly connected to the moving block 205, its rotation causes the moving block 205 to move downwards, allowing it to move linearly within the groove 203. This movement, along with the ring 211 fixedly connected to the moving block 205, causes the ring 211 to move downwards along the axis rod 202. This downward movement of the ring 211 causes the connecting rod 212 above to move downwards, simultaneously causing the top of the variable rod 208 to move downwards. Because both the top and bottom of the variable rod 208 are rotatably connected to the corresponding connecting rod 212, the variable rod 208 can change from an inclined state to a horizontal state, allowing the variable rod... The push plate 210 on one side of the bottom of 208 moves simultaneously. Because the bottom of the push plate 210 is fixedly connected to the sliding plate 209, the sliding plate 209 can move simultaneously, causing the rotating plate 207 on the sliding plate 209 to move simultaneously. This forces the sliding plate 209 to slide outward within the slot of the mounting plate 206. Finally, the rotating plate 207, which is rotatably connected to the sliding plate 209, is pushed outward, allowing the rotating plate 207 to gradually contact the inner wall of the spool. This allows the rotating plate 207 to adapt to spools of different diameters, improving efficiency. To accommodate the changing range, when the bobbin rotates, the sliding friction is converted into rolling friction by the rotating plate 207. This contact method greatly reduces the resistance of the bobbin's rotation, ensuring that the thread can be drawn out smoothly and evenly, directly improving the uniformity and aesthetics of the double-needle stitch. It effectively prevents the bobbin from shaking or becoming eccentric when rotating at high speed. Then, the thread is drawn out of the bobbin and first passes through the thread hole at the round rod 6, and then through the thread hole on the top of the thread rod 5, ensuring the smoothness and order of the thread output process and preventing different threads from mixing together.

[0026] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A novel double-needle wire frame, comprising a support pole (1), characterized in that: The bottom end of the pole support (1) is fixedly provided with a support rod (3), the top of the support rod (3) is provided with several limiting mechanisms (2), a crossbar (4) is provided above the limiting mechanism (2), the pole support (1) passes through the crossbar (4), and a wire guide (5) is provided above the crossbar (4). The limiting mechanism (2) includes a coil (201), a axial rod (202) is fixedly provided on the top of the coil (201), a groove (203) is provided on the surface of the axial rod (202), a threaded rod (204) is provided inside the groove (203), a moving block (205) is provided on the outer side of the bottom end of the threaded rod (204), and the moving block (205) is threadedly connected to the threaded rod (204). A mounting plate (206) is provided above the coil (201), and the mounting plate (206) is fixedly connected to the axial rod (202). A rotating plate (207) is provided at the top of both ends of the mounting plate (206), and the cross-sectional shape of the rotating plate (207) is circular. A variable rod (208) is provided on both sides of the axial rod (202), and the bottom end and bottom end of the variable rod (208) are arc-shaped.

2. The novel double-needle wire frame according to claim 1, characterized in that: The moving block (205) is located inside the groove (203) and is slidably connected to the groove (203).

3. The novel double-needle wire frame according to claim 1, characterized in that: A round rod (6) is provided below the wire guide rod (5), and both the round rod (6) and the wire guide rod (5) have several wire holes on their surfaces.

4. A novel double-needle wire frame according to claim 1, characterized in that: The mounting plate (206) has holes and grooves on its top surfaces at both ends, and a sliding plate (209) is provided inside the holes and grooves, and the sliding plate (209) is slidably connected to the holes and grooves.

5. A novel double-needle wire frame according to claim 4, characterized in that: The sliding plate (209) is rotatably connected to the bottom end of the rotating plate (207), and a push plate (210) is provided on the side of the rotating plate (207) near the axis rod (202).

6. A novel double-needle wire frame according to claim 5, characterized in that: The bottom end of the push plate (210) is fixedly connected to the sliding plate (209), and a ring (211) is provided above the mounting plate (206). The moving block (205) is fixedly connected to the inner wall of the ring (211), and the axis rod (202) passes through the ring (211) and contacts the ring (211).

7. A novel double-needle wire frame according to claim 5, characterized in that: The top of the push plate (210) near the side of the variable rod (208) and both sides of the bottom of the ring (211) are fixedly provided with connecting rods (212). The top and bottom of the variable rod (208) are rotatably connected to the corresponding connecting rods (212).

8. A novel double-needle wire frame according to claim 7, characterized in that: The connecting rod (212) passes through the end of the variable rod (208) and is rotatably connected to the connecting rod (212). The cross-sectional shape of the connecting rod (212) is U-shaped.

Images