A mask ear wire weaving device with broken wire detection function
By introducing sensors and auxiliary lower ear wire components into the mask ear wire braiding device, timely detection and processing of disconnection is achieved, the problem of untimely detection of interrupted disconnection is solved in the prior art, and the reliability of production is improved. efficiency.
Patent Information
- Application Number
- CN202010897919.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2020-08-31
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2040-08-31
AI Technical Summary
The existing mask ear wire braiding device cannot detect disconnection in time, resulting in production interruptions and equipment failures.
A mask ear wire braiding device with disconnection detection function is designed, including a sensor, a trigger and an auxiliary lower ear wire assembly. The sensor is installed between the unwinding assembly and the braiding machine head to detect the braided wire through the sensor. The wire is disconnected and the ear wire is driven downward by assisting the lower ear wire assembly to reduce the failure rate.
Timely detection and handling of disconnections is realized, production interruptions and equipment failures are avoided, and equipment reliability and production efficiency are improved.
Smart Images
Figure CN111926456B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of mask production equipment, and in particular to a mask ear wire weaving device with a wire breakage detection function. Background Art
[0002] With the development of science and technology, automation technology has become increasingly mature, and the traditional manual production of masks has been gradually replaced by the current automated production; in the automated production of masks, an ear wire weaving device is used to weave the ear wires. The process of weaving ear wires by the existing ear wire weaving device is as follows: first, two sets of unwinding components unwind two braided wires respectively; then, the braiding machine head weaves the two braided wires into ear wires; finally, the wire taking-up component receives the ear wires woven by the braiding machine head. However, when the braided wire unwound on the unwinding component breaks, the existing ear wire weaving device cannot detect it in time and will continue to operate, affecting normal production operations and even causing equipment failure.
[0003] Therefore, the market is in urgent need of a mask ear wire weaving device with a broken wire detection function. Summary of the invention
[0004] The technical problem solved by the present invention is to provide a mask ear wire weaving device with a wire breakage detection function in view of the above-mentioned problems in the prior art.
[0005] In order to solve the above technical problems, a technical solution adopted by the present invention is as follows: a mask ear wire weaving device with a wire breakage detection function, comprising a frame, a reeling assembly and a weaving machine head, and also comprising a detection assembly and an auxiliary lower ear wire assembly; the detection assembly comprises a sensor, a trigger and a first wire passing ring; the sensor is installed on the frame and is located between the reeling assembly and the weaving machine head; the trigger is movably installed on the housing of the sensor for triggering the sensor; the first wire passing ring is installed on the trigger, for the braided wire between the reeling assembly and the weaving machine head to pull the trigger away from the trigger position of the sensor; the auxiliary lower ear wire assembly is used to drive the ear wire woven by the weaving machine head to move downward.
[0006] As a further elaboration of the above technical solution:
[0007] In the above technical solution, a first rotating arm is rotatably mounted on the upper part of the sensor, and the trigger member is mounted on the free end of the first rotating arm; the trigger position of the sensor is arranged at the bottom of the sensor and is located on the circumference of the rotation of the trigger member around the fixed end of the first rotating arm.
[0008] In the above technical solution, the detection component also includes a second wire-passing ring and a third wire-passing ring; the second wire-passing ring and the third wire-passing ring are respectively located at the front top and the front middle of the sensor shell.
[0009] In the above technical solution, the sensor is any one of a photoelectric sensor, a proximity switch, a micro switch or a touch switch.
[0010] In the above technical solution, the auxiliary lower ear wire assembly includes a rotating shaft, a driving gear shaft and a driven gear shaft; the rotating shaft is rotatably mounted on the frame for transmission with an external motor; the driving gear shaft is sleeved on the rotating shaft; the driven gear shaft is rotatably mounted on the frame; the tooth portion of the driving gear shaft meshes with the tooth portion of the driven gear shaft; the shaft portion of the driving gear shaft cooperates with the shaft portion of the driven gear shaft to clamp the ear wire woven by the braiding machine head.
[0011] In the above technical solution, the auxiliary lower ear wire assembly also includes a gear shaft gap compensation mechanism; the gear shaft gap compensation mechanism includes a second rotating arm and a tension spring; the upper part of the second rotating arm is rotatably mounted on the frame, and the lower part of the second rotating arm is rotatably mounted with the driven gear shaft; one end of the tension spring is hooked on the frame, and the other end is hooked on the bottom of the second rotating arm, for pulling the lower part of the second rotating arm toward the driving gear shaft.
[0012] In the above technical solution, a parking assembly is also included, which includes a second cylinder, a support rod and a clamping roller; the second cylinder is installed on the frame; the piston rod of the second cylinder is connected to the support rod; the upper part of the support rod is rotatably installed with two clamping rollers; the two clamping rollers are arranged in parallel, and are respectively located on the upper and lower sides of the transmission belt that drives the knitting machine head to rotate.
[0013] In the above technical solution, it also includes an ear wire collection assembly; the ear wire collection assembly includes a wire collection box, a guide rail pair and a second cylinder; the wire collection box is slidably installed on the frame through the guide rail pair and is located below the auxiliary lower ear wire assembly; the second cylinder is arranged at the bottom of the frame and drives the wire collection box to slide.
[0014] In the above technical solution, it also includes a guide component; the guide component is used to guide the braided wire of the unwinding component and transfer it to the detection component, including a pin shaft, a pulley, a front stopper, a rear stopper and a spring; the pin shaft is installed on the frame; the pulley is rotatably installed on the pin shaft, and a U-shaped groove is provided on its circumference to cooperate with the braided wire; the front stopper and the rear stopper are respectively arranged at both ends of the pin shaft, and are used to limit the radial sliding of the pulley along the pin shaft; the spring is abutted between the front stopper and the pulley.
[0015] The beneficial effects of the present invention are:
[0016] 1. The present invention movably installs the triggering member on the sensor. When the braided wire between the unwinding assembly and the braiding machine head pulls up the triggering member, the triggering member will not trigger the sensor, and it is determined that the wire is not broken. If the wire is broken, the triggering member will fall back to the triggering position of the sensor due to the lack of tension of the braiding wire, and the sensor will be triggered, and it is determined that the braided wire is broken.
[0017] 2. Since the ear wire is light and soft, the ear wire woven by the braiding machine head may occasionally get stuck at the wire outlet of the braiding machine head. The present invention reduces the failure rate of the present invention by providing an auxiliary lower ear wire assembly to drive the ear wire downward. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 is a stereogram of the present invention;
[0019] Figure 2 yes Figure 1 A partial enlarged view of the middle A;
[0020] Figure 3 yes Figure 1 A partial enlarged view of point B in the middle.
[0021] The numbers in the figure are:
[0022] 1. Frame;
[0023] 2. Unwinding assembly;
[0024] 3. Braiding machine head; 31. Transmission ring;
[0025] 4. Detection component; 41. Sensor; 42. Trigger; 43. First wire passing ring; 44. First rotating arm; 45. Second wire passing ring; 46. Third wire passing ring;
[0026] 5. Auxiliary lower ear wire assembly; 51. Rotating shaft; 52. Driving gear shaft; 53. Driven gear shaft; 541. Second rotating arm; 542. Tension spring;
[0027] 6. Parking assembly; 61. Second cylinder; 62. Support rod; 63. Clamping roller;
[0028] 7. Guide assembly; 71. Pin; 72. Pulley; 721. U-shaped groove; 73. Front stopper; 75. Spring;
[0029] 8. Wire collection box. DETAILED DESCRIPTION
[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0031] The embodiments described with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and cannot be understood as limiting the present application. In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present application, "several" and "multiple" mean two or more, unless otherwise clearly and specifically defined. In this application, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a communication between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. In this application, unless otherwise clearly specified and limited, the first feature "above" or "below" the second feature can include the first and second features being in direct contact, or it can include the first and second features not being in direct contact but being in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature "below", "below" and "below" the second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is lower in level than the second feature.
[0032] Attached Figure 1-3 The specific embodiment of the pole piece winding device of the winding machine of the present invention is shown in the example. Figure 1-3 A mask ear line weaving device with a broken line detection function comprises a frame 1, a reel assembly 2, a weaving head 3, a detection assembly 4 and an auxiliary lower ear line assembly 5. The structure and installation method of the frame 1, the reel assembly 2 and the weaving head 3 are the same as those of the prior art, that is, the reel assembly 2 is installed on the top of the frame 1, and the weaving head 3 is installed in the middle of the frame 1. The detection assembly 4 is located between the reel assembly 2 and the weaving head 3, and comprises a sensor 41, a trigger 42 and a first wire loop 43. The sensor 41 is installed on the frame 1; the trigger 41 is movably installed on the housing of the sensor 41, and is used to trigger the sensor 41; the first wire loop 43 is installed on the trigger 42, and is used for the braided wire between the reel assembly 2 and the weaving head 3 to pull the trigger 42 away from the trigger position of the sensor 41. The auxiliary lower ear line assembly 5 is used to drive the ear line woven by the weaving head 3 to move downward.
[0033] The working principle of detecting broken wires of the present invention is as follows: the braided wire unwound by the unwinding component 2 first passes through the first wire ring 43 on the trigger member 42 and is then transferred to the braiding machine head 3. At this time, the braided wire is tightened by the unwinding component 2 and the braiding machine head 3, and then the trigger member 42 is pulled up from the trigger position of the sensor 41 by the braided wire, so that the sensor 41 is not triggered; when the braided wire wound on the unwinding component 2 is broken, the trigger member 42 falls back to the trigger position of the sensor 41 without being subjected to the tension of the braided wire and triggers the sensor 41. At this time, the sensor 41 sends a signal to the industrial control system of the ear wire braiding device, and the industrial control system detects the broken wire.
[0034] Furthermore, a first rotating arm 44 is rotatably mounted on the upper part of the sensor 41, and the triggering member 42 is mounted on the free end of the first rotating arm 45; when the first rotating arm 44 is not subjected to external force, the free end of the first rotating arm 44 and the first wire passing ring 43 mounted thereon will rotate downward around the fixed end of the first rotating arm 44 under the action of their own gravity. At the same time, the triggering position of the sensor 41 is set at the bottom of the sensor 41 and is located on the circumference of the rotation of the triggering member 42 around the fixed end of the first rotating arm 45; therefore, when the braided wire is broken, the triggering member 42 will fall back and trigger the sensor 41 due to the lack of upward pulling force of the braided wire; therefore, the detection component 4 has the advantages of simple structure, reasonable design, low cost, etc., and is suitable for large-scale industrial production.
[0035] Furthermore, the detection component 4 also includes a second wire passing ring 45 and a third wire passing ring 46; the second wire passing ring 45 and the third wire passing ring 46 are respectively located at the front top and the front middle of the shell of the sensor 41; in actual use, the braided wire unwound by the unwinding component 2 passes through the second wire passing ring 45, the third wire passing ring 46 and the first wire passing ring 43 from top to bottom in sequence and is then transferred to the braiding machine head 2 for braiding operations, thereby preventing the braided wire from interfering with the sensor 41 and reducing the failure rate of the present invention.
[0036] Further, the sensor 41 is any one of a photoelectric sensor, a proximity switch, a micro switch or a touch switch. Specifically, if the sensor 41 is a photoelectric sensor, when the trigger 42 falls to block the infrared light at the bottom of the photoelectric sensor, the photoelectric sensor sends a disconnection signal to the industrial control system; if the sensor 41 is a proximity switch, when the trigger 42 falls to the sensing surface at the bottom of the proximity switch, the proximity switch sends a disconnection signal to the industrial control system; if the sensor 41 is a micro switch, when the trigger 42 falls to touch the switch button at the bottom of the micro switch, the micro switch sends a disconnection signal to the industrial control system; if the sensor 41 is a touch switch, when the trigger 42 falls to touch the touch panel at the bottom of the touch switch, the touch switch sends a disconnection signal to the industrial control system.
[0037] Furthermore, the auxiliary lower ear wire assembly 5 includes a rotating shaft 51, a driving gear shaft 52 and a driven gear shaft 53. The rotating shaft 51 is rotatably mounted on the frame 1 and is used for transmission with an external motor. In actual use, a driven sprocket is mounted on the rotating shaft 51. The external motor is fixed on the frame 1 and drives the driven sprocket to rotate by sprocket transmission, and the driven sprocket drives the rotating shaft 51 to rotate. The driving gear shaft 52 is sleeved on the rotating shaft 51 and rotates synchronously with the rotating shaft 51; the driven gear shaft 53 is rotatably mounted on the frame 1; the teeth of the driving gear shaft 52 mesh with the teeth of the driven gear shaft 53; the shaft of the driving gear shaft 52 cooperates with the shaft of the driven gear shaft 53 to clamp the ear wire woven by the braiding machine head 2. The working principle of the auxiliary lower ear wire assembly is as follows: first, the external motor drives the driving gear shaft 52 to rotate clockwise; then, the driving gear shaft 52 drives the driven gear shaft 53 to rotate counterclockwise through gear transmission; finally, the driving gear shaft 52 and the driven gear shaft 53 rotate to pull the ear wire woven by the weaving machine head 3 downward.
[0038] Furthermore, the auxiliary lower ear wire assembly 5 also includes a gear shaft gap compensation mechanism 54; the gear shaft gap compensation mechanism 54 includes a second rotating arm 541 and a tension spring 542; the upper part of the second rotating arm 541 is rotatably mounted on the frame 1, and the lower part of the second rotating arm 541 is rotatably mounted with the driven gear shaft 53; one end of the tension spring 542 is hooked on the frame 1, and the other end is hooked on the bottom of the second rotating arm 541, which is used to pull the lower part of the second rotating arm 541 toward the driving gear shaft 52. During use, the teeth of the driving gear shaft 52 and the driven gear shaft 53 will wear, and the tension spring 542 can pull the teeth of the driven gear shaft 53 to tightly engage with the teeth of the driving gear shaft 52.
[0039] Furthermore, it also includes a parking component 6, which includes a second cylinder 61, a support rod 62 and a clamping roller 63; the second cylinder 61 is installed on the frame 1; the piston rod of the second cylinder 61 is connected to the support rod 62; two clamping rollers 63 are rotatably installed on the upper part of the support rod 62; the two clamping rollers 63 are arranged in parallel, respectively located on the upper and lower sides of the transmission belt that drives the braiding head 3 to rotate; specifically: the braiding head 3 is rotatably installed on the frame 1, and a driving wheel is mounted on the output shaft of the external servo motor, and the driving wheel and the transmission ring 31 at the bottom of the braiding head 3 form a belt drive through a transmission belt, and the transmission belt is a rubber rope; and when the parking component 6 is working, the second cylinder 61 drives the two clamping rollers 63 to move upward or downward, and then the rubber rope is forcibly separated from the transmission ring 31 by the clamping roller, so that the braiding head 31 stops working.
[0040] Furthermore, it also includes a guide assembly 7; the guide assembly is used to guide the braided wire of the unwinding assembly 2 and transfer it to the detection assembly 4, and includes a pin shaft 71, a pulley 72, a front stopper 73, a rear stopper and a spring 75. The pin shaft 71 is installed on the frame 1; the pulley 72 is rotatably installed on the pin shaft 71, and a U-shaped groove 721 is provided on its circumference to cooperate with the braided wire; the front stopper 73 and the rear stopper are respectively provided at both ends of the pin shaft 71, and are used to limit the pulley 72 from sliding radially along the pin shaft 71; the spring 75 is abutted between the front stopper 73 and the pulley 72.
[0041] Furthermore, it also includes an ear wire collection component. The ear wire collection component includes a wire collection box 8, a guide rail pair and a second cylinder. The guide rail of the guide rail pair is installed and fixed on the frame 1, and the slider of the guide rail pair is fixedly connected to the bottom plate of the wire collection box 8; the wire collection box 8 is located below the auxiliary lower ear wire assembly 5; the second cylinder is arranged at the bottom of the frame 1, and drives the wire collection box 8 to slide. The existing ear wire collection component only installs one wire collection box 8 on the frame 1, resulting in the ear wires falling into the wire collection box 8 being disordered, and inconvenient to take out and transport; while the present invention drives the wire collection box 8 to slide back and forth by the second cylinder, so that the part of the ear wire falling into the wire collection box 8 will fall into the two ends of the wire collection box 8 cyclically and stack in a circle in a 0 shape. When the operator takes it out later, he only needs to tie up the stacked ear wires from the middle of the wire collection box 8 with a strap or a Maza strap, etc., so that it can be conveniently taken out and transported.
[0042] The above does not limit the technical scope of the present invention in any way. Any modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.
Claims
1. A mask ear wire weaving device with a broken wire detection function, comprising a frame, a reeling assembly and a weaving machine head, characterized in that , also includes the following components: The detection component comprises a sensor, a trigger and a first wire passing ring; the sensor is mounted on the frame and is located between the unwinding component and the braiding machine head; the trigger is movably mounted on the housing of the sensor and is used to trigger the sensor; the first wire passing ring is mounted on the trigger and is used for the braiding wire between the unwinding component and the braiding machine head to pull the trigger away from the trigger position of the sensor; The auxiliary lower ear wire assembly is used to drive the ear wire woven by the braiding machine head to move downward.
2. A mask ear wire weaving device with a broken wire detection function according to claim 1, characterized in that: A first rotating arm is rotatably mounted on the upper portion of the sensor, and the triggering member is mounted on the free end of the first rotating arm; the triggering position of the sensor is arranged at the bottom of the sensor and is located on the circumference of the rotation of the triggering member around the fixed end of the first rotating arm.
3. A mask ear wire weaving device with a broken wire detection function according to claim 2, characterized in that The detection component also includes a second wire-passing ring and a third wire-passing ring; the second wire-passing ring and the third wire-passing ring are respectively located at the top and the middle of the front side of the sensor shell.
4. A mask ear wire weaving device with a broken wire detection function according to claim 3, characterized in that ,The sensor is any one of a photoelectric sensor, a proximity switch, a micro switch or a touch switch.
5. A mask ear wire weaving device with a broken wire detection function according to any one of claims 1 to 4, characterized in that The auxiliary lower ear wire assembly includes a rotating shaft, a driving gear shaft and a driven gear shaft; the rotating shaft is rotatably mounted on the frame for transmission with an external motor; the driving gear shaft is sleeved on the rotating shaft; the driven gear shaft is rotatably mounted on the frame; the tooth portion of the driving gear shaft meshes with the tooth portion of the driven gear shaft; the shaft portion of the driving gear shaft cooperates with the shaft portion of the driven gear shaft to clamp the ear wire woven by the braiding machine head.
6. A mask ear wire weaving device with a broken wire detection function according to claim 5, characterized in that The auxiliary lower ear wire assembly also includes a gear shaft gap compensation mechanism; the gear shaft gap compensation mechanism includes a second rotating arm and a tension spring; the upper part of the second rotating arm is rotatably mounted on the frame, and the lower part of the second rotating arm is rotatably mounted with the driven gear shaft; one end of the tension spring is hooked on the frame, and the other end is hooked on the bottom of the second rotating arm, for pulling the lower part of the second rotating arm toward the driving gear shaft.
7. A mask ear wire weaving device with a broken wire detection function according to claim 6, characterized in that , also includes a parking component, the parking component includes a second cylinder, a support rod and a clamping roller; the second cylinder is installed on the frame; the piston rod of the second cylinder is connected to the support rod; the upper part of the support rod is rotatably installed with two clamping rollers; the two clamping rollers are arranged in parallel, respectively located on the upper and lower sides of the transmission belt that drives the knitting machine head to rotate.
8. A mask ear wire weaving device with a wire breakage detection function according to claim 7, characterized in that , also includes an ear wire collection assembly; the ear wire collection assembly includes a wire collection box, a guide rail pair and a second cylinder; the wire collection box is slidably mounted on the frame through the guide rail pair and is located below the auxiliary lower ear wire assembly; the second cylinder is arranged at the bottom of the frame and drives the wire collection box to slide.
9. A mask ear wire weaving device with a broken wire detection function according to claim 8, characterized in that , also includes a guide component; the guide component is used to guide the braided wire of the unwinding component and transfer it to the detection component, including a pin shaft, a pulley, a front stopper, a rear stopper and a spring; the pin shaft is installed on the frame; the pulley is rotatably installed on the pin shaft, and a U-shaped groove is provided on its circumference to cooperate with the braided wire; the front stopper and the rear stopper are respectively arranged at both ends of the pin shaft, for limiting the radial sliding of the pulley along the pin shaft; the spring is abutted against the front stopper and the pulley.