Light sensing stopping device for weaving machine

Abstract

The utility model relates to the technical field of weaving machines, and discloses a light sensation stopping device for a weaving machine, which comprises a shell, a yarn penetrates through the inner side of the upper end of the shell, an infrared signal transmitter is fixedly connected with the inner side of one end of the shell, and when the light sensation stopping device for the weaving machine is installed and used, the yarn penetrates through the shell and a shielding assembly. Signals emitted by the infrared signal emitter are shielded through the shielding assembly, meanwhile, the infrared signal emitter and the infrared signal receiver at the lower end of the shell are sealed and protected through the limiting assembly and the shielding assembly, and meanwhile the air blowing assembly is started. After the air blowing assembly is started, dust or impurities and the like generated by yarn movement in the upper end of the shell are extracted out of the shell through the filtering assembly under the assistance of the protection assembly, so that when the light sensation braking device is used, the influence of foreign matter such as dust and the like on the infrared signal transmitter and the infrared signal receiver can be reduced, and therefore the braking efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of loom technology, specifically to a light-sensitive braking device for looms. Background Technology

[0002] A loom is a machine that interweaves warp and weft yarns according to the requirements of the fabric structure to form a fabric. A smooth rod stop device is a photoelectric induction self-stop device used in looms. It can automatically control the loom to stop running when the yarn breaks or other faults occur, thereby avoiding the production of defective products.

[0003] A search revealed Chinese patent application CN202322130419.6, which discloses an automatic yarn protection device for a jet loom. The device includes a housing, a nozzle, and a control panel. An air compressor is mounted on the left side of the housing, and a first air supply pipe is mounted on the top surface of the air compressor. One end of the first air supply pipe is connected to a second air supply pipe, and a connecting flange is mounted on the right end of the second air supply pipe. The other end of the connecting flange is connected to a third air supply pipe. The nozzle is mounted on the right end of the third air supply pipe, and a telescopic rod extends through the right end of the nozzle's inner cavity. The control panel is mounted on the right end of the telescopic rod, and a fixing rod is mounted on the bottom end of the control panel. A photoelectric sensor is mounted on the left side of the fixing rod. In this prior art, the photoelectric sensor is used to monitor the yarn inside the loom in real time. When a yarn breakage occurs, the photoelectric sensor automatically detects it and controls other equipment to stop the loom.

[0004] The aforementioned photoelectric sensor is essentially exposed during operation. In use, it transmits signals via an infrared transmitter and receives them via an infrared receiver. During operation, objects such as yarn can obstruct the signal emitted by the transmitter. When the weft yarn breaks, the signal from the infrared transmitter is no longer blocked, allowing the receiver to receive it and control the loom to stop. However, when the yarn breaks, the signal emitted by the transmitter is easily blocked by dust or other foreign objects in the air, affecting the signal transmission and preventing timely reception by the receiver. This results in delayed stopping of the loom and ultimately, defective fabric. Utility Model Content

[0005] The purpose of this invention is to provide a light-sensitive braking device for looms, which solves the problem that the infrared sensor inside the existing light-sensitive braking device for looms is easily affected by dust or impurities in the air, thus affecting the braking effect of the device.

[0006] This utility model provides the following technical solution: a light-sensing braking device for a loom, comprising a housing, a yarn passing through the inner side of the upper end of the housing, an infrared signal transmitter fixedly connected to the inner side of one end of the housing, an infrared signal receiver fixedly connected to the inner side of the end of the housing away from the infrared signal transmitter, a protective door rotatably connected to the outer side of one end of the housing, a limiting component fixedly connected to the inner side of the middle of the housing, a shielding component inserted inside the limiting component, a filter component fixedly connected to the inner side of the end of the housing away from the protective door, a protective component fixedly connected to the upper end of the housing, and a blower component fixedly connected to the inner side of the protective component.

[0007] As a preferred embodiment of the above technical solution, the limiting component includes a partition fixedly connected to the inner side of the middle of the housing, and a sleeve plate fixedly connected to the inner side of the middle of the partition plate, with sealing gaskets fixedly connected to the inner sides of both ends of the sleeve plate.

[0008] As a preferred embodiment of the above technical solution, the shielding component includes a baffle inserted inside the sleeve, and a collar is fixedly connected to the upper end of the baffle. The collar is sleeved on the outer side of the yarn, and a hole or groove is opened in the middle of the baffle.

[0009] As a preferred embodiment of the above technical solution, the filter assembly includes a filter screen inserted inside the end of the housing away from the protective door, and bolts are engaged inside both ends of the filter screen, with one end of the bolt near the housing inserted and engaged inside the housing.

[0010] As a preferred embodiment of the above technical solution, the protective component includes a protective cover fixedly connected to the outer side of the upper end of the housing, and a mesh cover fixedly connected to the inner side of the upper end of the protective cover.

[0011] As a preferred embodiment of the above technical solution, the blower assembly includes a fixed plate fixedly connected inside the protective cover, and a motor is fixedly connected to the lower side of the middle end of the fixed plate, with the motor output shaft passing through the fixed plate and a fan fixedly connected thereto.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] This loom uses a light-sensitive braking device. During installation and use, the yarn passes through the outer casing and the shielding assembly. In operation, the shielding assembly blocks the signal emitted by the infrared transmitter. Simultaneously, the limiting and shielding components seal and protect the infrared transmitter and receiver at the lower end of the outer casing. At the same time, the blower assembly is activated. With the assistance of the protective components, the filter assembly removes dust or impurities generated by the yarn movement from the upper part of the outer casing. This reduces the impact of dust and other foreign objects on the infrared transmitter and receiver, thereby improving braking efficiency. Attached Figure Description

[0014] Figure 1 A first-view structural diagram of a light-sensing braking device for a loom.

[0015] Figure 2 A schematic diagram of the second-view structure of a light-sensing braking device for a loom;

[0016] Figure 3 A first-view cross-sectional structural diagram of a light-sensing braking device for a loom.

[0017] Figure 4 A schematic diagram of the second-view cross-sectional structure of the optically-sensored braking device for a loom.

[0018] Figure 5 for Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Outer shell; 11. Yarn; 12. Infrared signal transmitter; 13. Infrared signal receiver; 14. Protective door; 2. Partition; 21. Sleeve; 22. Sealing gasket; 3. Baffle; 31. Collar; 32. Groove; 4. Filter screen; 41. Bolt; 5. Protective cover; 51. Mesh cover; 6. Fixing plate; 61. Motor; 62. Fan. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] like Figure 1 - Figure 5 As shown, this utility model provides a technical solution: a light-sensing braking device for a loom, including a housing 1, with a yarn 11 passing through the inner side of the upper end of the housing 1, and an infrared signal transmitter 12 fixedly connected to the inner side of one end of the housing 1, an infrared signal receiver 13 fixedly connected to the inner side of the end of the housing 1 away from the infrared signal transmitter 12, and a protective door 14 rotatably connected to the outer side of one end of the housing 1, a limiting component fixedly connected to the inner side of the middle of the housing 1, and a blocking component inserted inside the limiting component, a filter component fixedly connected to the inner side of the end of the housing 1 away from the protective door 14, and a protective component fixedly connected to the upper end of the housing 1, with a blower component fixedly connected inside the protective component. The loom's light rod... When the stopping device is installed and used, the yarn is passed through the outer shell 1 and the shielding component. During use, the signal emitted by the infrared signal transmitter 12 is blocked by the shielding component. At the same time, the limiting component and the shielding component are used to seal and protect the infrared signal transmitter 12 and infrared signal receiver 13 at the lower end of the outer shell 1. At the same time, the blower component is activated. After the blower component is activated, with the assistance of the protective component, the filter component is used to remove dust or impurities generated inside the upper end of the outer shell 1 due to the movement of the yarn 11. This reduces the impact of dust and other foreign objects on the infrared signal transmitter 12 and infrared signal receiver 13 when the light-sensing stopping device is in use, thereby improving the stopping efficiency.

[0022] like Figure 3 , Figure 4 and Figure 5 As shown, the limiting component includes a partition 2 fixedly connected to the inner side of the middle of the housing 1, and a sleeve 21 fixedly connected to the inner side of the middle of the partition 2. Sealing gaskets 22 are fixedly connected to the inner sides of both ends of the sleeve 21. The partition 2 divides the space inside the housing 1, thereby protecting the infrared signal transmitter 12 and infrared signal receiver 13 at the lower end of the housing 1. At the same time, the sleeve 21 and sealing gaskets 22 limit and seal the upper end of the shielding component, reducing the amount of dust from the upper end of the housing 1 entering the lower end of the housing 1 and affecting the infrared signal transmitter 12 and infrared signal receiver 13.

[0023] like Figure 3 As shown, the shielding assembly includes a baffle 3 inserted inside the sleeve 21, and a collar 31 is fixedly connected to the upper end of the baffle 3. The inner side of the collar 31 is sleeved on the outer side of the yarn 11, and a slot 32 is opened in the middle of the baffle 3. By using the collar 31 to sleeve on the outer side of the yarn 11, it is easy to pull the baffle 3, so that the baffle 3 can block the signal emitted by the infrared signal transmitter 12. At the same time, when the yarn 11 breaks and the baffle 3 falls off, the signal emitted by the infrared signal transmitter 12 passes through the slot 32 and is received by the infrared signal receiver 13.

[0024] like Figure 2 As shown, the filter assembly includes a filter screen 4 inserted inside the end of the housing 1 away from the protective door 14, and bolts 41 are engaged inside both ends of the filter screen 4. The end of the bolt 41 close to the housing 1 is inserted and engaged inside the housing 1. The filter screen 4 is used to filter dust and other particles carried in the air entering the housing 1 from the outside.

[0025] like Figure 1 As shown, the protective component includes a protective cover 5 fixedly connected to the outer side of the upper end of the housing 1, and a mesh cover 51 fixedly connected to the inner side of the upper end of the protective cover 5. The protective cover 5 and the mesh cover 51 are used to protect the fan 62 and prevent foreign objects from entering the fan 62 and affecting it when the fan 62 is running.

[0026] like Figure 3 As shown, the blower assembly includes a fixed plate 6 fixedly connected inside the protective cover 5, and a motor 61 is fixedly connected to the lower side of the middle end of the fixed plate 6. The output shaft of the motor 61 passes through the fixed plate 6 and is fixedly connected to a fan 62. With the support of the fixed plate 6, the motor 61 is started. After the motor 61 starts, the output shaft drives the fan 62 to rotate. After the fan 62 rotates, it draws out the air inside the housing 1, which facilitates the removal of air from the housing 1. At the same time, it discharges dust and impurities carried in the air inside the housing 1 to the outside of the housing 1, avoiding the influence of dust or impurities on the infrared signal transmitter 12 and the infrared signal receiver 13.

[0027] Working principle: When the light-sensing braking device is in use, after opening the protective door 14, the baffle 3 is pushed upwards with the assistance of the sleeve 21 and the sealing gasket 22. Then, the yarn 11 passes through the outer shell 1 and the collar 31, using the yarn 11 to pull the collar 31. At the same time, the lower end of the baffle 3 blocks the infrared signal transmitter 12 and the infrared signal receiver 13. After starting the infrared signal transmitter 12 and the infrared signal receiver 13, the protective door 14 is closed. After the infrared signal transmitter 12 starts, it emits a signal, and after the infrared signal receiver 13 starts, it receives the signal emitted by the infrared signal transmitter 12. Due to the blocking effect of the baffle 3, the signal emitted by the infrared signal transmitter 12 is blocked by the baffle 3, thus preventing the infrared signal receiver 13 from receiving the signal emitted by the infrared signal transmitter 12. At this point, with the support of the fixed plate 6, the motor 61 is started. After the motor 61 starts, the output shaft drives the fan 62 to rotate. After the fan 62 rotates, it draws out the air from the outer shell 1. The drawn-out air is discharged through the mesh cover 51, while the outside air enters the outer shell 1 after being filtered by the filter screen 4, thus forming a circulation. Using the air circulation, the dust and debris generated by the movement of the yarn 11 inside the outer shell 1 are discharged from the mesh cover 51. When the yarn 11 breaks, the traction force on the collar 31 disappears. Then, the baffle 3 and the collar 31 fall under the action of gravity. When the baffle 3 falls to the lower end of the outer shell 1, the signal emitted by the infrared signal transmitter 12 is transmitted through the slot 32 to the infrared signal receiver 13 and is received by the infrared signal receiver 13, thereby allowing the infrared signal receiver 13 to control the loom to stop running.

[0028] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A light-sensitive braking device for a loom, comprising a housing (1), characterized in that: A yarn (11) is provided through the inner side of the upper end of the outer shell (1), and an infrared signal transmitter (12) is fixedly connected to the inner side of one end of the outer shell (1). An infrared signal receiver (13) is fixedly connected to the inner side of the end of the outer shell (1) away from the infrared signal transmitter (12), and a protective door (14) is rotatably connected to the outer side of one end of the outer shell (1). A limiting component is fixedly connected to the inner side of the middle end of the outer shell (1), and a shielding component is inserted inside the limiting component. A filter component is fixedly connected to the inner side of the end of the outer shell (1) away from the protective door (14), and a protective component is fixedly connected to the upper end of the outer shell (1). A blower component is fixedly connected to the inner side of the protective component.

2. The optically-sensored braking device for a loom according to claim 1, characterized in that: The limiting component includes a partition (2) fixedly connected to the inner side of the middle of the outer shell (1), and a sleeve (21) fixedly connected to the inner side of the middle of the partition (2), and sealing gaskets (22) fixedly connected to the inner sides of both ends of the sleeve (21).

3. The optically-sensored braking device for a loom according to claim 2, characterized in that: The shielding assembly includes a baffle (3) inserted inside the sleeve (21), and a collar (31) is fixedly connected to the upper end of the baffle (3). The collar (31) is sleeved on the outside of the yarn (11), and a hole (32) is opened in the middle of the baffle (3).

4. The optically-sensored braking device for a loom according to claim 1, characterized in that: The filter assembly includes a filter screen (4) inserted inside the end of the housing (1) away from the protective door (14), and bolts (41) are engaged inside both ends of the filter screen (4). The end of the bolt (41) close to the housing (1) is inserted and engaged inside the housing (1).

5. The optically-sensored braking device for a loom according to claim 1, characterized in that: The protective assembly includes a cover (5) fixedly connected to the outer side of the upper end of the outer shell (1), and a mesh cover (51) fixedly connected to the inner side of the upper end of the cover (5).

6. The optically-sensored braking device for a loom according to claim 5, characterized in that: The blower assembly includes a fixed plate (6) fixedly connected inside the cover (5), and a motor (61) is fixedly connected to the lower side of the middle end of the fixed plate (6). The output shaft of the motor (61) passes through the fixed plate (6) and is fixedly connected to a fan (62).

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