Thread stand of sewing machine

Abstract

The utility model relates to the technical field of thread stands, in particular to a thread stand of a sewing machine, which comprises a support main body, a transverse frame is fixed on the support main body, and a hole for guiding is arranged on the transverse frame. A plurality of groups of transverse frames are arranged in the height direction of the support main body, a thread support is arranged on the support main body and below each group of transverse frames, the thread supports are used for placing thread coils, and sewing threads on the thread coils are pulled out, penetrate through holes above, are guided and then are conveyed to the direction of a sewing machine; a detector is installed on the transverse frame and close to the hole, the sewing thread penetrating out of the hole passes through the detector and is used for detecting the sewing thread, multiple rolls of sewing thread are placed at the same time, and disorder is avoided when the sewing thread enters the sewing machine.

Description

Technical Field

[0001] This utility model relates to the field of thread holder technology, specifically to a thread holder for a sewing machine. Background Technology

[0002] Sewing thread is usually simply rolled up on the table or threaded on, which can easily cause mess. When in use, without a dedicated thread holder, the sewing thread is easily pulled out of its original position, causing mess, and it is impossible to detect whether the sewing thread is used up, causing the machine to run idle.

[0003] Based on this, this solution provides a thread holder for a sewing machine, used for the orderly and controllable placement of sewing threads. Utility Model Content

[0004] The present invention aims to at least solve the problem of the lack of a dedicated rack for sewing threads in the prior art.

[0005] This solution provides a thread holder for a sewing machine, achieved through the following specific technical means: it includes a support body, on which a crossbar is fixed, and the crossbar has holes for guiding purposes; multiple sets of crossbars are arranged along the height direction of the support body, and a thread holder is provided below each set of crossbars on the support body for holding a thread spool, and the sewing thread on the spool passes through the holes above after being pulled out; a detector is installed on the crossbar near the holes, and the sewing thread passing through the holes is detected by the detector.

[0006] Preferred technical solution 1: The crossbeam has multiple sets of holes, and the number of line supports distributed under the crossbeam in each set is equal to the number of holes on the crossbeam. Multiple sets of line supports at the same height constitute a line tower.

[0007] Preferred technical solution 2: The bottom side of the wire support is detachably connected to the crossbeam fixed on the main body of the bracket, and a branch seat is fixed at the center of the wire support, and the branch seat is used to insert and place the wire roll.

[0008] Preferred technical solution 3: The detector includes a detection cylinder seat fixed on a cross frame, and a proximity sensor is installed on the detection cylinder seat to detect whether a sewing thread passes through the cylinder seat.

[0009] Preferred technical solution four: A metal rod is fixed to the front side of the main body of the support, the number of the metal rods is equal to the number of the crossbeams, and the metal rods are provided with guide holes equal to the number of line supports in a set of line towers.

[0010] Preferred technical solution five: The bottom end of the screw fixed on the branch seat passes through the mounting hole on the crossbeam and is fixed with a nut.

[0011] Preferred technical solution six: The detector is electrically connected to the PL controller of the sewing machine.

[0012] The above structure enables this solution to have the following beneficial effects:

[0013] 1. Allows multiple rolls of sewing thread to be placed simultaneously, preventing them from getting mixed up when entering the sewing machine;

[0014] 2. The sewing thread will not come out of its original position due to excessive pulling force;

[0015] 3. Each wire has an independent incoming path;

[0016] 4. Enables inspection of each sewing thread. Attached Figure Description

[0017] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0018] Figure 1 This is a schematic diagram of the overall structure of this solution;

[0019] Figure 2 This is a schematic diagram of the tower structure in this scheme;

[0020] Figure 3 This is a schematic diagram of the detector structure in this scheme;

[0021] Figure 4 This is a diagram showing the thread routing for use with a sewing machine in this solution.

[0022] Among them, 1. Support body, 11. Metal block, 2. Cross frame, 21. Hole, 3. Line support, 31. Branch seat, 32. Screw, 4. Crossbeam, 5. Detector, 51. Detection cylinder seat, 52. Claw, 53. Proximity sensor, 6. Metal rod, 61. Guide hole, 7. Crossbar. Detailed Implementation

[0023] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0024] Please see Figures 1-2The sewing machine's thread frame includes a support body 1, which is fixed to the worktable by screws via a metal block 11 at the bottom to prevent wobbling. The bottom protrusion of the support body 1 is directly inserted into a protruding hole on the metal block 11, and the diameter of the protruding hole matches the diameter of the bottom protrusion of the support body 1. A crossbeam 2 is fixed on the support body 1, and the crossbeam 2 has guide holes 21. Multiple sets of crossbeams 2 are arranged along the height of the support body 1. A thread holder 3 is arranged below each set of crossbeams 2 on the support body 1. The thread holder 3 is used to hold the thread roll. After the sewing thread on the thread roll is pulled out, it passes through the guide through the hole 21 of the upper crossbeam 2 and is transported to the direction of the sewing machine. Multiple sets of holes 21 are opened on the crossbeam 2, and the number of thread holders 3 distributed below each set of crossbeams 2 is equal to the number of holes 21 on the crossbeam 2, so that the sewing thread on each set of thread holders 3 can pass through the guide through the corresponding set of holes 21. Multiple sets of thread holders 3 at the same height constitute a thread tower.

[0025] A detector 5 is installed on the crossbar 2 near the hole 21. The sewing thread that passes through the hole 21 passes through the detector 5 for detection.

[0026] Please see Figures 1-2 The sewing machine's thread holder 3 is detachably connected to the crossbeam 4 fixed on the main body 1 of the support frame. A thread support 31 is fixed at the center of the thread holder 3. The thread support 31 is used to insert and place the thread spool. The thread support 31 has a conical structure. The coarse end of the thread spool is stuck on the thread support 31. The bottom end of the screw 32 fixed on the thread support 31 passes through the mounting hole on the crossbeam 4 and is fixed with a nut.

[0027] Please see Figure 1 and Figure 3 The sewing machine's thread holder and detector 5 include a detection spool 51 fixed to the crossbar 2. A proximity sensor 53 is installed on the detection spool 51. The sewing thread passing through the hole 21 passes through the detection spool 51. The proximity sensor 53 detects whether sewing thread is passing through the detection spool 51, thus promptly detecting and issuing an alarm when the sewing thread breaks or runs out. The proximity sensor 53 is connected to the sewing machine's PL controller via wiring. Automatic shutdown is achieved when a spool of thread is used up. For different types of sewing thread, the PL controller... The controller can adjust the sensitivity of the proximity sensor 53 to adapt to the current working conditions; a gripper 52 is fixed on the detection cylinder base 51, and the gripper 52 is slidably sleeved on the crossbar 7 fixed on the bottom side of the cross frame 2 and parallel to the cross frame 2. Multiple sets of detection cylinder bases 51 are distributed on each set of crossbars 7. The number of detection cylinder bases 51 is less than the number of line supports 3 in a set of line towers. The position of the detection cylinder base 51 can be moved on the crossbar 7 according to the required position, thereby reducing the number of detectors 5 installed and keeping the detection cylinder base 51 close to the hole 21 through which the sewing thread passes.

[0028] Please see Figures 1-4The sewing machine's thread frame has metal rods 6 fixed to the front side of the support body 1. The number of metal rods 6 is equal to the number of crossbars 2. Each set of metal rods 6 corresponds to a set of thread towers, and the metal rods 6 have guide holes 61 equal in number to the thread supports 3 in a set of thread towers. The sewing thread passing through the detection cylinder 51 passes through the guide holes 61 to guide the sewing thread. The metal rods 6 are detachably connected to the support body 1 through the clamps set at their ends. The clamps can adjust the angle between the metal rods 6 and the support body 1, thereby changing the final guidance of the sewing thread.

[0029] 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 thread stand for a sewing machine, comprising a support body (1), characterized in that: A cross frame (2) is fixed on the support body (1), and a hole (21) for guiding is opened on the cross frame (2). The cross frame (2) is provided with multiple groups in the height direction of the support body (1), and a thread holder (3) is provided below each group of cross frames (2) on the support body (1), and the thread holder (3) is used to place a thread roll, and the sewing thread on the thread roll is pulled out and passes through the hole (21) above; a detector (5) is installed on the cross frame (2) near the hole (21), and the sewing thread passing through the hole (21) is detected by the detector (5).

2. A thread stand for a sewing machine according to claim 1, characterized in that: The cross frame (2) is provided with a plurality of groups of holes (21), and the number of wire supports (3) distributed below each group of the cross frame (2) is equal to the number of holes (21) on the cross frame (2).

3. A thread stand for a sewing machine according to claim 1, characterized in that: A branch line seat (31) is fixed at the center of the wire support (3), and the branch line seat (31) is used for inserting a sleeve to place a wire coil.

4. The thread stand for a sewing machine according to claim 1, characterized in that: The detector (5) comprises a detection cylinder seat (51) fixed on the horizontal frame (2), and a proximity sensor (53) is installed on the detection cylinder seat (51) for detecting whether a sewing thread passes through the cylinder seat (51).

5. A thread stand for a sewing machine according to claim 4, characterized in that: A metal rod (6) is fixed on the front side of the bracket body (1), the number of the metal rods (6) is equal to the number of the cross frames (2), and the metal rods (6) are provided with guide holes (61) equal to the number of line supports (3) at the same height on the cross frames (2).

6. The thread stand for a sewing machine according to claim 1, characterized in that: The bottom side of the wire support (3) is detachably fixedly connected to a crossbeam (4) fixed on the bracket body (1).

7. A thread stand for a sewing machine according to claim 4, characterized in that: The proximity sensor (53) is electrically connected to the PL controller of the sewing machine.

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