Color thread replacing device for computerized embroidery machine

Abstract

The invention discloses a color thread replacement device for a computerized embroidery machine. The color thread replacement device comprises an embroidery machine body, a gas transmission mechanism, a plurality of thread conduits, a color thread transmission mechanism and a plurality of threading mechanisms, the gas transmission mechanism comprises a gas transmission pipe and a plurality of shunt pipes, the wire guide pipe comprises two sealing sleeves, and the sealing sleeves are connected to the outer wall of the wire guide wheel and the outer wall of the detection wheel in a sleeving mode respectively; each threading mechanism comprises a wire outlet and a wire inlet, the wire conduits are communicated with the wire outlets, and the surfaces of the wire inlets are connected with hoses; a plurality of embroidering mechanisms are arranged in the bottom end of the embroidering machine body, machine needles are arranged in the embroidering mechanisms, the interiors of the machine needles are hollow, and thread holes are symmetrically formed in the outer walls of the machine needles. According to the invention, airflow is adopted to pull the color threads to move, so that the steps of processing broken threads and changing threads by operators are simplified, the shutdown processing time is shortened, the investment of the operators is also reduced, and the same operator can give consideration to more embroidery units.

Description

Technical Field

[0001] The invention relates to the technical field of computer embroidery machines, in particular to a color thread changing device for computer embroidery machines. Background Art

[0002] Computer embroidery machine, also known as computer embroidery machine, is a product of a combination of various high-tech technologies. It not only significantly improves the speed and efficiency of embroidery, but also solves the requirements of multi-level, multi-function, uniformity and perfection that traditional hand embroidery cannot achieve. Nowadays, computer embroidery machine has become the main production equipment in the embroidery industry.

[0003] In the production process of computer embroidery machines, in order to improve the efficiency of embroidery, computer embroidery machines are arranged in parallel to obtain a computer embroidery machine group composed of multiple computer embroidery machines, which can perform batch embroidery and large-area fabric surface embroidery.

[0004] However, the increase in computer embroidery units also brings challenges to the work intensity of the operators. When the computer embroidery machine is in operation, the thread may break or the color thread is insufficient. The operator needs to stop the embroidery machine, deal with the thread breakage and add color thread rolls. The processing methods of thread breakage and adding color thread require the color thread to be arranged inside the embroidery machine again. Not only is the arrangement of the color thread more complicated, the operator needs to disassemble the embroidery machine structure, arrange the color thread according to a specific path, and finally insert the color thread into the thread hole of the needle head. Not only does the operator need to have a certain amount of patience, but the operator also needs to have rich work experience to arrange the color thread quickly and accurately.

[0005] Secondly, during the color thread arrangement process, the embroidery machine needs to be shut down. Long-term shutdown will inevitably affect the embroidery production efficiency. When large-scale embroidery machines are running, multiple operators are required to supervise the operating status of the embroidery machines. In addition, if multiple embroidery machines have broken threads or insufficient color thread residues at the same time, if the equipment production needs to be quickly restored, multiple operators are required to rearrange the color threads simultaneously and quickly, which not only increases the human resource investment of the operators, but also reduces the production efficiency of large embroidery machines. Summary of the invention

[0006] The object of the present invention is to provide a color thread changing device for a computerized embroidery machine to solve the problems raised in the above-mentioned background technology.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a color thread replacement device for a computerized embroidery machine, comprising an embroidery machine body, an air delivery mechanism, a plurality of wire tubes, a color thread transmission mechanism and a plurality of threading mechanisms;

[0008] The gas delivery mechanism comprises a gas delivery pipe and a plurality of shunt pipes, and both ends of each shunt pipe are respectively connected to the gas delivery pipe and the interior of a plurality of wire pipes;

[0009] The color line transmission mechanism includes a plurality of wire reel racks and a plurality of servo motors, and each of the wire reel racks is connected to a servo motor;

[0010] The surface of the embroidery machine body is provided with a plurality of guide wheels and detection wheels;

[0011] Each of the wire tubes comprises two sealing sleeves, and the two sealing sleeves are respectively sleeved on the outer walls of the wire wheel and the detection wheel;

[0012] A plurality of swing arms are arranged inside the lower end of the embroidery machine body;

[0013] Each of the threading mechanisms comprises a wire outlet and a wire inlet, each of the wire outlet and the wire inlet are symmetrically distributed on both sides of each swing arm, each of the wire pipes is connected to the wire outlet, and a hose is connected to the surface of each wire inlet;

[0014] A plurality of embroidery mechanisms are arranged inside the bottom end of the embroidery machine body, each of which is provided with a machine needle, each of which is connected with the inside of the hose, each of which is hollow inside, and each of which has symmetrical thread holes on its outer wall.

[0015] Preferably, a solenoid valve is installed inside each of the shunt pipes.

[0016] Preferably, the number of the plurality of wire tubes is the same as the number of the wire reel racks, and a wire feed bucket is provided at one end of each of the wire tubes facing the wire reel rack.

[0017] Preferably, an air inlet end and an air outlet end are respectively provided at two ends inside each sealing sleeve, and a guide block is provided inside the air inlet end.

[0018] Preferably, one end of each detection wheel that passes through the surface of the embroidery machine body is provided with a detection mechanism, and each detection mechanism includes a rotating shaft and an infrared distance sensor;

[0019] One end of each rotating shaft is connected to the detection wheel, and the surface of each rotating shaft is provided with evenly distributed protrusions.

[0020] Preferably, the detection mechanism further includes a display light, and the display light is embedded and installed on the surface of the detection wheel.

[0021] Preferably, a limiting frame adapted to the arrangement path of the hose is provided on the surface of the embroidery machine body.

[0022] Preferably, the hose is made of transparent latex material, and the length of the hose is greater than the sum of the arrangement path length and the travel distance of the embroidery mechanism.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] 1. The present invention adopts an air transmission mechanism, a wire tube, a threading mechanism and a hose to achieve the effect of quickly pulling and guiding the colored thread. The colored thread is driven to move in the wire tube by the airflow, so that the colored thread can reach the designated mechanism by itself according to the arrangement path of the wire tube, saving the time of the operator to disassemble the embroidery machine body and arrange the colored thread, effectively simplifying the steps of arranging the colored thread, and can quickly solve the problems of broken thread and insufficient residual colored thread, reducing the downtime of the embroidery machine body, and reducing the input of the operator, so that the same operator can take care of multiple embroidery machine bodies;

[0025] 2. The present invention adopts a hollow machine needle to achieve the effect of fast threading. The airflow is input into the interior of the machine needle through a hose. The airflow carries the colored thread into the interior of the machine needle and flows out from the thread hole, achieving the effect of quickly passing the colored thread through the thread hole. The operator only needs to position one end of the colored thread passing through the thread hole on the thread clamping mechanism to complete the arrangement of the colored thread, which effectively improves the efficiency of the colored thread passing through the thread hole on the machine needle, speeds up the efficiency of the color thread arrangement and reduces the tediousness of the color thread arrangement for the operator. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the appearance structure of the embroidery machine body in the first embodiment of the present invention;

[0027] Figure 2 This is a schematic diagram of the appearance structure of the gas transmission mechanism in the first embodiment of the present invention;

[0028] Figure 3 This is a schematic diagram of the main cross-sectional structure of the sealing sleeve in the first embodiment of the present invention;

[0029] Figure 4 It is a schematic diagram of the side cross-sectional structure of the guide wheel in the first embodiment of the present invention;

[0030] Figure 5 It is a schematic diagram of the side cross-sectional structure of the detection wheel in the first embodiment of the present invention;

[0031] Figure 6 In the first embodiment of the present invention Figure 1 A schematic diagram of the structure enlargement in the middle;

[0032] Figure 7 This is a schematic diagram of the appearance structure of the threading mechanism and the swing arm in the first embodiment of the present invention;

[0033] Figure 8 This is a schematic diagram of the main cross-sectional structure of the threading mechanism in the first embodiment of the present invention;

[0034] Fig. 9This is a schematic diagram of the appearance structure of the embroidery mechanism in the first embodiment of the present invention;

[0035] Fig.10 This is a schematic diagram of the main structure of the needle in the first embodiment of the present invention;

[0036] Fig.11 It is a schematic diagram of the side sectional structure of the needle in the first embodiment of the present invention.

[0037] In the figure:

[0038] 100, embroidery machine body; 110, guide wheel; 120, detection wheel; 130, swing arm; 140, embroidery mechanism;

[0039] 200, gas transmission mechanism; 210, gas transmission pipe; 211, shunt pipe; 212, solenoid valve;

[0040] 300, wire tube; 310, wire feeder; 320, sealing sleeve; 321, air inlet end; 322, air outlet end; 323, guide block;

[0041] 400, color line transmission mechanism; 410, line reel; 411, servo motor;

[0042] 500, threading mechanism; 510, wire outlet; 520, wire inlet; 521, hose;

[0043] 600, needle; 610, thread hole;

[0044] 700, detection mechanism; 710, rotating shaft; 711, bump; 720, infrared distance sensor; 730, display light. DETAILED DESCRIPTION

[0045] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] See also Figures 1 to 11 The present invention provides the following three embodiments:

[0047] Embodiment 1:

[0048] See also Figure 1 A color thread changing device for a computer embroidery machine includes an embroidery machine body 100, an air delivery mechanism 200, a plurality of wire tubes 300, a color thread transmission mechanism 400 and a plurality of threading mechanisms 500.

[0049] See also Figure 1 and Figure 3 The gas delivery mechanism 200 includes a gas delivery pipe 210 and a plurality of shunt pipes 211. The two ends of each shunt pipe 211 are respectively connected to the inside of the gas delivery pipe 210 and the plurality of wire pipes 300. A solenoid valve 212 is installed inside each shunt pipe 211. The solenoid valve 212 is used to independently control the on-off state of each shunt pipe 211. The solenoid valve 212 can input and close the airflow input to the wire pipe 300 according to the actual use situation. The solenoid valve 212 is connected to the control terminal of the embroidery machine body 100 through a circuit. The operator can flexibly control the control terminal of the embroidery machine body 100.

[0050] See also Figure 1 and Figure 2 The color wire transmission mechanism 400 includes a plurality of wire reels 410 and a plurality of servo motors 411, and each wire reel 410 is connected to the servo motor 411. The number of the plurality of wire tubes 300 is the same as the number of the plurality of wire reels 410, and a wire feed bucket 310 is provided at one end of each wire tube 300 facing the wire reel 410.

[0051] When the colored thread corresponding to the wire tube 300 breaks or the remaining colored thread is insufficient, the operator stops the embroidery machine body 100, pulls out the broken thread from the embroidery machine body 100 or places the replacement colored thread on the thread reel 410, and then the solenoid valve 212 on the shunt pipe 211 connected to the current wire tube 300 opens, generating airflow to flow in the wire tube 300 and forming a negative pressure inside one end of the wire tube 300 close to the thread reel 410, sucking the colored thread head into the wire tube 300, and cooperating with the rotation of the servo motor 411 to feed the thread, the colored thread can be kept transmitted at a uniform speed in the wire tube 300, and the problem of colored thread tangling can be avoided.

[0052] See also Figure 1 A plurality of guide wheels 110 and detection wheels 120 are arranged on the surface of the embroidery machine body 100 .

[0053] See also Figures 3 to 5 Each wire tube 300 includes two sealing sleeves 320, and the two sealing sleeves 320 are respectively sleeved on the outer walls of the wire wheel 110 and the detection wheel 120. The wire wheel 110 can be manually rotated to adjust the output speed of the color line, and the detection wheel 120 can detect the color line and the broken state of the color line.

[0054] See also Figure 3, an air inlet end 321 and an air outlet end 322 are respectively provided at the two ends of each sealing sleeve 320, and a guide block 323 is provided inside the air inlet end 321. The sealing sleeve 320 achieves the effect of sealing the edges of the wire wheel 110 and the detection wheel 120, so that the space for the wire wheel 110 and the detection wheel 120 to transmit the color line is integrated with the inside of the wire tube 300, and the color line is driven by the airflow to move, and the color line can pass through the edges of the wire wheel 110 and the detection wheel 120 in turn, and form an arc-shaped color line path along the edges of the wire wheel 110 and the detection wheel 120, and the wire wheel 110 and the detection wheel 120 can be driven to rotate by the transmission of the color line.

[0055] The guide block 323 can separate the airflow in the space where the air inlet end 321 is located, and guide the color wire to the two sides of the wire wheel 110 and the detection wheel 120 to prevent the color wire from being stuck at the rotation point of the wire wheel 110 and the detection wheel 120. The airflow entrains the color wire for transmission to achieve the effect of automatic color wire arrangement, without the need for manual wiring by the operator, and effectively improving the efficiency of color wire replacement and arrangement.

[0056] See also Figure 5 Each detection wheel 120 is provided with a detection mechanism 700 at one end thereof penetrating the surface of the embroidery machine body 100. Each detection mechanism 700 includes a rotating shaft 710 and an infrared distance sensor 720. One end of each rotating shaft 710 is connected to the detection wheel 120. Each rotating shaft 710 is provided with evenly distributed protrusions 711 on its surface. The detection mechanism 700 also includes a display light 730, and the display light 730 is embedded and installed on the surface of the detection wheel 120.

[0057] After the color line is wound around the surface of the detection wheel 120, as the color line is transmitted, the color line drives the detection wheel 120 to rotate, and then drives the protrusion 711 on the surface of the rotating shaft 710 to rotate, and the infrared distance sensor 720 detects the space below, and the detection wheel 120 rotates normally. The value measured by the infrared distance sensor 720 changes cyclically. If the measured value is a constant, it means that the detection wheel 120 stops rotating, which reflects the situation that the color line is broken or the color line is used up, and the machine needs to be shut down. At the same time, the display light 730 changes the display color to mark the line where the color line is located, which is convenient for the staff to quickly identify.

[0058] See also Figure 1 A plurality of swing arms 130 are disposed inside the lower end of the embroidery machine body 100 . The swing arms 130 serve as swing components in the embroidery machine body 100 . When the colored threads are arranged, they need to pass through the holes in the heads of the swing arms 130 .

[0059] See also Figures 6 to 8Each threading mechanism 500 includes a wire outlet 510 and a wire inlet 520, and each wire outlet 510 and wire inlet 520 are symmetrically distributed on both sides of each swing arm 130, each wire tube 300 is connected to the wire outlet 510, and a hose 521 is connected to the surface of each wire inlet 520.

[0060] By combining the threading mechanism 500 with the swing arm 130, the airflow carries the color thread through the swing arm 130 without human intervention, thereby achieving the effects of automatic threading and color thread arrangement.

[0061] See also Figure 1 A plurality of embroidery mechanisms 140 are disposed inside the bottom of the embroidery machine body 100 , and a needle 600 is disposed inside each embroidery mechanism 140 .

[0062] See also Figures 9 to 11 Each needle 600 is connected to the inside of the hose 521, the inside of each needle 600 is hollow, and each needle 600 has a wire hole 610 symmetrically opened on the outer wall.

[0063] After the airflow carries the colored thread through the threading mechanism 500, the airflow carries the colored thread into the hose 521. The colored thread can be transmitted to the inside of the needle 600 through the hose 521. The colored thread carried by the airflow flows out from the thread hole 610 at the lower end of the needle 600, so that the colored thread passes through the thread hole 610, thereby realizing the combination of the colored thread and the needle 600. The operator positions one end of the colored thread on the thread clamping mechanism to complete the arrangement of the colored thread.

[0064] The colored thread is detached from the thread coil and passed through the thread hole 610, all of which are driven by airflow. The entire colored thread arrangement process does not require manual intervention, which effectively simplifies the steps of colored thread arrangement, can quickly solve the problems of thread breakage and insufficient colored thread residue, reduce the downtime of the embroidery machine body 100, and reduce the input of the operator, so that one operator can take care of multiple embroidery machine bodies 100.

[0065] A limiting frame adapted to the arrangement path of the hose 521 is disposed on the surface of the embroidery machine body 100 . The limiting frame is used to fix the hose 521 to prevent the hose 521 from affecting the operation of the embroidery mechanism 140 .

[0066] The hose 521 is made of transparent latex material, and the length of the hose 521 is greater than the sum of the arrangement path length and the travel distance of the embroidery mechanism 140. The connection between the hose 521 and the needle 600 can produce elastic deformation, so that the hose 521 moves with the reciprocating motion of the embroidery mechanism 140, and the length of the hose 521 has a margin to avoid the problem of the hose 521 being stretched and broken.

[0067] Embodiment 2:

[0068] Based on the above embodiment, another embodiment is proposed:

[0069] Color line break detection method:

[0070] The color line is transmitted in the wire tube 300, and the color line is wound around the surface of the detection wheel 120. As the color line is transmitted, the color line drives the detection wheel 120 to rotate, and the color line drives the detection wheel 120 to rotate, and the detection wheel 120 drives the protrusion 711 on the surface of the rotating shaft 710 to rotate. The infrared distance sensor 720 detects the space below. The value measured by the infrared distance sensor 720 changes cyclically, not a fixed value, which means that the color line is being transmitted normally and there is no break. The display light 730 shows green color, indicating that the color line is operating normally.

[0071] If the measured value is a constant, it means that the detection wheel 120 stops rotating, that is, the color line transmission on the surface of the detection wheel 120 stops or there is no color line transmission, which further reflects that the color line is broken or the color line is used up, and the machine needs to be shut down. At the same time, the display light 730 shows red, indicating the line where the color line is located, which is convenient for the staff to quickly identify it.

[0072] Embodiment three:

[0073] Based on the above embodiment, another embodiment is proposed again:

[0074] Color line supplement method:

[0075] When a color wire on the wire reel rack 410 is used up, the display light 730 of the detection mechanism 700 in the color wire line turns red, and the operator places the color wire reel on the wire reel rack 410 and places the color wire head on the color wire reel into the wire feed bucket 310.

[0076] Through the control terminal of the embroidery machine body 100, the corresponding solenoid valve 212 on the air supply mechanism 200 to which the colored thread belongs is controlled to open, and the diversion pipe 211 inputs airflow into the wire tube 300 for transmitting the colored thread, generating airflow flowing in the wire tube 300 and forming a negative pressure inside one end of the wire tube 300 close to the wire reel 410, thereby sucking the colored thread end into the wire tube 300.

[0077] During the thread changing process, the control terminal of the embroidery machine body 100 controls the servo motor 411 to rotate at a constant speed, controls the color thread to be output at a constant speed, and cooperates with the air flow flowing in the wire tube 300 to keep the color thread transmitted at a constant speed in the wire tube 300 and avoid the problem of color thread tangling.

[0078] After the colored thread passes through the thread hole 610 of the needle 600 , the servo motor 411 stops running and the solenoid valve 212 closes, cutting off the airflow in the wire tube 300 .

[0079] In the subsequent color line transmission process, the servo motor 411 generates electric energy by idling. The servo motor 411 is connected in parallel with a discharge circuit. The discharge circuit is a battery or a discharge resistor, which is used to store or consume the electric energy generated by the servo motor 411 to avoid damage to the servo motor 411.

[0080] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A color thread changing device for a computerized embroidery machine, characterized in that: It comprises an embroidery machine body (100), an air delivery mechanism (200), a plurality of wire tubes (300), a color thread transmission mechanism (400) and a plurality of threading mechanisms (500); The gas delivery mechanism (200) comprises a gas delivery pipe (210) and a plurality of shunt pipes (211), and both ends of each shunt pipe (211) are respectively connected to the inside of the gas delivery pipe (210) and a plurality of wire pipes (300); The color line transmission mechanism (400) comprises a plurality of line reels (410) and a plurality of servo motors (411), and each of the line reels (410) is connected to a servo motor (411); The surface of the embroidery machine body (100) is provided with a plurality of guide wheels (110) and detection wheels (120); Each of the wire tubes (300) comprises two sealing sleeves (320), and the two sealing sleeves (320) are respectively sleeved on the outer walls of the wire wheel (110) and the detection wheel (120); A plurality of swing arms (130) are arranged inside the lower end of the embroidery machine body (100); Each of the threading mechanisms (500) comprises a wire outlet (510) and a wire inlet (520), each of the wire outlet (510) and the wire inlet (520) are symmetrically distributed on both sides of each swing arm (130), each of the wire tubes (300) is connected to the wire outlet (510), and a hose (521) is connected to the surface of each of the wire inlets (520); A plurality of embroidery mechanisms (140) are arranged inside the bottom end of the embroidery machine body (100), each of the embroidery mechanisms (140) is provided with a machine needle (600), each of the machine needles (600) is connected to the inside of the hose (521), each of the machine needles (600) is hollow inside, and each of the machine needles (600) has a symmetrical outer wall with thread holes (610).

2. The color thread changing device for a computerized embroidery machine according to claim 1, characterized in that: A solenoid valve (212) is installed inside each of the flow diversion pipes (211).

3. The color thread changing device for a computerized embroidery machine according to claim 1, characterized in that: The number of the plurality of wire tubes (300) is the same as the number of the wire reel racks (410), and a wire feed bucket (310) is provided at one end of each wire tube (300) facing the wire reel rack (410).

4. The color thread changing device for a computerized embroidery machine according to claim 1, characterized in that: An air inlet end (321) and an air outlet end (322) are respectively arranged at two ends inside each sealing sleeve (320), and a guide block (323) is arranged inside the air inlet end (321).

5. The color thread changing device for a computerized embroidery machine according to claim 1, characterized in that: One end of each detection wheel (120) that passes through the surface of the embroidery machine body (100) is provided with a detection mechanism (700), and each detection mechanism (700) comprises a rotating shaft (710) and an infrared distance sensor (720); One end of each rotating shaft (710) is connected to the detection wheel (120), and the surface of each rotating shaft (710) is provided with evenly distributed protrusions (711).

6. The color thread changing device for a computerized embroidery machine according to claim 5, characterized in that: The detection mechanism (700) further comprises a display light (730), and the display light (730) is embedded and installed on the surface of the detection wheel (120).

7. The color thread changing device for a computerized embroidery machine according to claim 1, characterized in that: The surface of the embroidery machine body (100) is provided with a limiting frame adapted to the arrangement path of the hose (521).

8. The color thread changing device for a computerized embroidery machine according to claim 1, characterized in that: The hose (521) is made of transparent latex material, and the length of the hose (521) is greater than the sum of the length of the arrangement path and the travel distance of the embroidery mechanism (140).

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