A stapling apparatus and sensor assembly therefor

Abstract

This application discloses a sewing device and its sensor assembly, relating to the field of sewing device technology. The sensor assembly includes: a body; a U-shaped through-hole disposed in the body; the U-shaped through-hole includes a first segment, an arc-shaped segment, and a second segment connected sequentially; a tension sensor, a first elastic element, and a first piston; a second elastic element and a second piston; a pull rod and a pull ring. This application, through the U-shaped through-hole, can amplify the tension borne by the weft thread through the circulating fluid within the U-shaped through-hole, enabling sensitive monitoring of even minute changes in the tension borne by the weft thread, even when using a tension sensor with lower sensitivity. Furthermore, the tension sensor is located within the sealed space of the U-shaped through-hole, making it less susceptible to external environmental influences; that is, the sensor assembly is less prone to failure due to environmental interference. In other words, this sensor assembly is suitable for applications involving rock wool board sewing.

Description

Technical Field

[0001] This application relates to the field of suture equipment technology, specifically to a suture device and its sensor assembly. Background Technology

[0002] In rock wool board stitching applications, sensor components are frequently used to monitor the tension of the weft threads to prevent breakage due to excessive tension when the weft is pulled. It's important to understand that because the tension required for the weft to break is relatively small, if the sensor component has low sensitivity, the thread may have already broken by the time it detects a tension exceeding a threshold. Conversely, higher sensitivity results in higher costs. Furthermore, in rock wool board stitching applications, the working environment is often characterized by high humidity and dust levels; therefore, the higher the sensitivity of the sensor component, the more susceptible it is to environmental interference and potential failure. Utility Model Content

[0003] The purpose of this application is to provide a sewing device and its sensor assembly to solve the technical problem that existing sensor assemblies are not suitable for application scenarios involving rock wool board sewing.

[0004] To achieve the above objectives, this application provides the following technical solution:

[0005] In a first aspect, this application proposes a technical solution for a sensor assembly, which includes:

[0006] ontology;

[0007] A U-shaped through hole is provided in the body; the U-shaped through hole includes a first section, an arc-shaped section and a second section connected in sequence; the inner diameter of the first section is larger than the inner diameter of the second section; in use, the openings of the first section and the second section in the U-shaped through hole are both vertically upward, and the inside of the U-shaped through hole contains a communicating fluid;

[0008] A tension sensor, a first elastic element, and a first piston; the first piston is disposed in the first section of the U-shaped through hole; the tension sensor is disposed in the body; one end of the first elastic element is connected to the input end of the tension sensor, and the other end is connected to the first piston;

[0009] A second elastic element and a second piston; both the second piston and the second elastic element are disposed in the second section of the U-shaped through hole; the second elastic element stores elastic potential energy, which has a tendency to cause the second piston to move toward the U-shaped bottom of the U-shaped through hole;

[0010] A pull rod and a pull ring; the first end of the pull rod is connected to the end of the second piston near the second opening, and the pull ring is disposed at the second end of the pull rod.

[0011] As a specific solution in this application, the main body is further provided with a central through hole and a pull rope sensor. One end of the central through hole is connected to the U-shaped through hole, and the inner diameter of the central through hole is smaller than the inner diameter of the second section of the U-shaped through hole. In use, the opening at the other end of the central through hole faces vertically upward. The float in the pull rope sensor is adapted to the central through hole.

[0012] As a specific embodiment of the technical solution in this application, the main body is further provided with a liquid inlet pipe, which is connected to the U-shaped through hole; the liquid inlet pipe is provided with a pressure reducing valve.

[0013] As a specific solution in this application, it also includes a liquid inlet assembly, which is used to inject a connecting liquid into the U-shaped through hole through the liquid inlet pipe.

[0014] Secondly, this application proposes a suturing device that includes a sensor assembly as described in any one of the first aspects.

[0015] As a specific solution in this application, it also includes a wire feeding device; the wire feeding device includes:

[0016] Base plate;

[0017] Two pay-off reel assemblies; both pay-off reel assemblies are mounted on the base plate; the beginning ends of the weft yarn wound on the two pay-off reel assemblies are connected;

[0018] A sensor assembly corresponding to each pay-off reel assembly; the sensor assembly is at least used to measure the release parameters when the corresponding pay-off reel assembly releases the weft yarn; the release parameters include the tension and / or speed when the weft yarn is released;

[0019] A resistance motor corresponds to each pay-off reel assembly; the resistance motor is disposed on the corresponding pay-off reel assembly and is used to adjust the weft release speed of the pay-off reel assembly based on the release parameters.

[0020] As a specific solution in the technical solution of this application, it also includes:

[0021] A negative pressure box; the negative pressure box is provided with multiple strip-shaped holes; in use, each strip-shaped hole extends along a first direction, which is parallel to the extension direction of the meridian;

[0022] A negative pressure component; the input end of the negative pressure component is connected to the interior of the negative pressure box; in use, it is used to create a negative pressure inside the negative pressure box.

[0023] As a specific embodiment of the technical solution in this application, the suturing device forms multiple warp loops during suturing; the suturing device includes:

[0024] A wire feeding device that corresponds one-to-one with each warp loop;

[0025] A puller device that corresponds one-to-one with each pay-off device; in use, the puller device is used to carry the weft thread from the corresponding pay-off device through the corresponding warp loop.

[0026] As a specific solution in this application, the wire pulling device includes:

[0027] support;

[0028] A telescopic component is provided on the bracket;

[0029] A hook-up component is disposed at the output end of the telescopic component; the hook-up component has a hook-up state and a release state; when the hook-up component is in the hook-up state, it can hook up with the taut weft thread in the pay-off device; when the hook-up component is in the release state, it can release the hook-up with the weft thread.

[0030] A clamping component is disposed at the output end of the telescopic component; the clamping component has a clamping state and a releasing state; when the clamping component is in the clamping state, it can clamp the weft yarn drawn out from the pay-off device; when the clamping component is in the releasing state, it can release the clamping of the weft yarn.

[0031] As a specific solution in this application, the telescopic component includes any one of an electric push rod, a hydraulic push rod, or a cylinder.

[0032] As a specific solution in this application, the mounting component includes:

[0033] A power gear and a gear ring; both the power gear and the gear ring are rotatably disposed at the output end of the telescopic assembly, and the power gear and the gear ring mesh with each other;

[0034] A hook is provided on the gear ring; the hook is used to hook onto the taut weft yarn;

[0035] A driving component for driving the power gear to rotate.

[0036] As a specific solution in this application, the clamping component includes:

[0037] Two airbags are disposed at the output end of the telescopic component; when the clamping component is in the clamping state, the minimum distance between the two airbags is 0; when the clamping component is in the released state, the minimum distance between the two airbags is at least greater than the diameter of the weft thread.

[0038] An inflatable component, connected to two airbags, is used to inflate at least two airbags with gas.

[0039] As a specific solution in this application, it also includes a switch assembly, which is at least used to control the travel of the telescopic portion in the telescopic assembly.

[0040] As a specific solution in this application, the switching assembly includes a limit switch, or the switching assembly includes:

[0041] Piston cylinder, mounted on the bracket;

[0042] The piston rod is movably connected to the piston cylinder, and the piston rod is connected to the output end of the telescopic assembly;

[0043] A vacuum sensor is used to measure the air pressure inside the piston cylinder;

[0044] A controller is used to control the stroke of the output end of the telescopic component based on the air pressure value.

[0045] Compared with the prior art, the beneficial effects of this application are:

[0046] This application, through the design of a U-shaped through-hole, amplifies the tension borne by the weft thread via the circulating fluid within the U-shaped through-hole. Even with a less sensitive tension sensor, minute changes in the tension borne by the weft thread can be detected sensitively. Furthermore, the tension sensor is located within the sealed space of the U-shaped through-hole, making it less susceptible to external environmental influences; that is, the sensor assembly is less likely to fail due to environmental interference. In other words, this sensor assembly is suitable for applications involving rock wool board stitching. Attached Figure Description

[0047] Figure 1 This is a three-dimensional schematic diagram of threading based on a shuttle in the prior art;

[0048] Figure 2 This is a three-dimensional schematic diagram of a threading device based on a wire pulling device and a wire releasing device proposed in an embodiment of this application;

[0049] Figure 3 This is a three-dimensional schematic diagram of a wire pulling device proposed in the embodiments of this application;

[0050] Figure 4 This is a schematic diagram of the working state of the pull-wire device proposed in the embodiment of this application (the hanging component is in the hanging state and the clamping component is in the released state).

[0051] Figure 5 This is a schematic diagram of another working state of the pull wire device proposed in the embodiments of this application (the hook component is in the disengaged state and the clamping component is in the released state);

[0052] Figure 6 This is a schematic diagram of another working state of the pull wire device proposed in the embodiment of this application (the hook component is in the disengaged state and the clamping component is in the clamping state);

[0053] Figure 7 This is a three-dimensional schematic diagram of a wire feeding device in the prior art;

[0054] Figure 8 This is a perspective view of a wire feeding device proposed in an embodiment of this application;

[0055] Figure 9 This is a perspective view of another wire feeding device proposed in the embodiments of this application;

[0056] Figure 10 This is a cross-sectional schematic diagram of a sensor assembly proposed in an embodiment of this application;

[0057] Figure 11 This is a three-dimensional schematic diagram of a sensor assembly proposed in an embodiment of this application;

[0058] Figure 12 This is a perspective view of yet another wire feeding device proposed in the embodiments of this application;

[0059] Figure 13 This is a schematic diagram showing the attachment component in the released state according to the embodiments of this application;

[0060] Figure 14 The mounting component proposed in this application embodiment is along Figure 13 A schematic diagram showing the movement of direction A into place;

[0061] Figure 15 The gear ring edge in the coupling assembly proposed in the embodiments of this application Figure 14 A schematic diagram showing the direction C rotated into position;

[0062] Figure 16 This is a schematic diagram of the structure of a clamping component proposed in an embodiment of this application;

[0063] Figure 17 This is a cross-sectional schematic diagram of another sensor assembly proposed in the embodiments of this application.

[0064] In the diagram: 1. Warp ring; 2. Weft thread; 3. Shuttle; 4. Thread pulling device; 41. Bracket; 42. Telescopic assembly; 43. Power gear; 44. Gear ring; 45. Hook; 46. Airbag; 47. Switch assembly; 48. Electromagnet; 49. Third elastic element; 5. Thread feeding device; 51. Base plate; 52. Thread feeding reel assembly; 53. Thread pulling sensor; 54. Resistance motor; 55. Sensor assembly; 551. U-shaped through hole; 552. Central through hole; 553. Tension sensor; 554. First elastic element; 555. First piston; 556. Pull rod; 557. Second piston; 558. Second elastic element; 559. Pull ring; 56. Liquid inlet pipe; 57. Pressure reducing valve; 58. Liquid inlet assembly; 6. Negative pressure box; 61. Strip hole; 7. Negative pressure element. Detailed Implementation

[0065] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0066] It should be noted that in the description of this application, the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0067] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale; for example, the thickness or width of some layers may be exaggerated relative to other layers.

[0068] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0069] Before understanding the embodiments proposed in this application, it is important to understand that cotton thread is used to sew the rock wool during the production of rock wool boards to improve the mechanical strength of the boards. Traditional rock wool sewing equipment, such as... Figure 1As shown (a mature technology, therefore only shuttle 3 is displayed), shuttle 3 carries weft thread 2 through multiple warp loops 1 in one go, thus forming a continuous chain stitch. This stitching method has the following drawbacks: if weft thread 2 breaks, all stitching structures on the corresponding stitch chain of the rock wool board will fail (refer to the sealing stitching structure of a nylon bag). During the tensile testing of materials (e.g., rock wool boards), the material will always break at its weakest point in terms of mechanical strength. If all stitching structures on a certain stitch chain of the rock wool board fail, the tensile strength of the rock wool board at that point will decrease by more than 50%. To prevent weft thread 2 from breaking, the tension of weft thread 2 needs to be monitored by a sensor assembly to prevent excessive tension from causing breakage.

[0070] To address the technical problem that existing sensor assemblies are unsuitable for applications involving rock wool board stitching, this application proposes an embodiment of a sensor assembly. In this embodiment, the sensor assembly 55 includes a body, a tension sensor 553, a first piston 555, a second piston 557, a pull rod 556, and a pull ring 559. Wherein, as... Figure 10 As shown, the main body is provided with a U-shaped through hole 551, which includes a first segment, an arc-shaped segment, and a second segment connected in sequence. The inner diameter of the first segment is larger than the inner diameter of the second segment. In use, the openings of both the first and second segments of the U-shaped through hole 551 face vertically upwards; and the interior of the U-shaped through hole 551 contains a connecting fluid. A first piston 555 is disposed in the first segment of the U-shaped through hole 551. A tension sensor 553 is disposed in the main body, and the first piston 555 is connected to the tension sensor 553. A second piston 557 is disposed in the second segment of the U-shaped through hole 551. The first end of a pull rod 556 is connected to the end of the second piston 557 near the opening of the second segment, and a pull ring 559 is disposed at the second end of the pull rod 556.

[0071] In this embodiment, the first piston 555 being disposed in the first section of the U-shaped through hole 551 means that the first piston 555 can perform piston movement in the first section of the U-shaped through hole 551; similarly, the second piston 557 being disposed in the second section of the U-shaped through hole 551 means that the second piston 557 can perform piston movement in the second section of the U-shaped through hole 551.

[0072] As will be explained below, the tension change of the first piston 555 is monitored by a tension sensor 553 disposed on the main body. In this embodiment, there are no restrictions on the placement of the tension sensor 553; for example, the tension sensor 553 can be placed as follows: Figure 10 As shown, it is fixedly installed in the first section of the U-shaped through hole 551; it can also be installed as follows: Figure 17 As shown, it is fixedly installed on the top of the main body.

[0073] In use, the weft thread 2 is passed through the pull ring 559. If the pulling force of the pull device 4 on the weft thread 2 increases (i.e., the tension of the weft thread 2 increases), the pull ring 559 can drive the second piston 557 to move along the U-shaped through hole 551 towards the direction of the second opening (hereinafter referred to as the first moving direction) through the pull rod 556. If the second piston 557 has the tendency to move along the first moving direction, that is, under the action of the second piston 557, the liquid level in the second section of the U-shaped through hole 551 has the tendency to rise (when the volume of the connected liquid in the U-shaped through hole 551 remains unchanged, that is, the pressure at the liquid level in the second section has the tendency to decrease). Based on Pascal's law, it is known that when an external force causes a pressure increase at any point in an incompressible static fluid, this pressure increase is transmitted to all points in the static fluid instantaneously. That is to say, in this embodiment, the pressure at the first liquid level has the same trend of change as the pressure at the second liquid level. If the pressure at the first liquid level changes, the force on the first piston 555 will also change. Specifically, the force change experienced by the first piston 555 is as follows:

[0074] F = ΔP * S

[0075] Where F is the force change value of the first piston 555; ΔP is the pressure change value at the first liquid surface, which is equal to the pressure change value at the second liquid surface; S is the cross-sectional area of ​​the first section of the U-shaped through hole 551.

[0076] As can be seen from the above, if the inner diameter of the second section of the U-shaped through hole 551 remains unchanged and the tension on the pull ring 559 changes, then theoretically, the larger the inner diameter of the first section, the greater the change in the force on the first piston 555.

[0077] In this embodiment, since the first piston 555 is connected to the force sensor 553, if the force on the first piston 555 changes, the force measured by the force sensor 553 will also change accordingly (increase or decrease). That is, in this embodiment, the magnitude of the force detected by the force sensor 553 can be amplified by making the inner diameter of the first segment larger than the inner diameter of the second segment. In other words, in this embodiment, a less sensitive force sensor 553 can be used, which saves costs and avoids the phenomenon that the force sensor 553 cannot detect minute changes in force in the pull ring 559.

[0078] In this embodiment, the first piston 555 is connected to the tension sensor 553 so that when the tension on the first piston 555 changes, the tension sensor 553 can detect the change in tension. In the embodiments of this application, the connection between the first piston 555 and the tension sensor 553 is not limited; for example, the first piston 555 can be connected to the tension sensor 553 via a rope or other means. Figure 17 The rods shown are connected. Of course, it can also be like... Figure 10 As shown, the sensor assembly also includes a first elastic element 554. The tension sensor 553, the first elastic element 554, and the first piston 555 are sequentially arranged in the first section of the U-shaped through hole 551 in a vertically downward direction. One end of the first elastic element 554 is connected to the tension sensor 553, and the other end of the first elastic element 554 is connected to the first piston 555.

[0079] To ensure that the liquid levels in the first and second sections of the U-shaped through-hole 551 can be quickly reset when the tension in the pull ring 559 is released, in one embodiment of this application, the sensor assembly may further include a second elastic element 558. The second elastic element 558 is disposed in the second section of the U-shaped through-hole 551. The second elastic element 558 stores elastic potential energy, which tends to cause the second piston 557 to move towards the U-shaped bottom of the U-shaped through-hole 551. In use, if the tension in the pull ring 559 disappears, the liquid levels in the first and second sections of the U-shaped through-hole 551 can be quickly reset under the action of the second elastic element 558.

[0080] In this embodiment, the first piston 555 and / or the second piston 557 can be resilient seals. The resilient seals can be pistons made of elastic materials (e.g., rubber, silicone, or foam).

[0081] In this embodiment, as Figure 10 As shown, a stop is also provided at the opening of the second section. The stop is used to prevent the second piston 557 from detaching from the body under the traction of the pull rod 556. The stop can be a cover with a through hole, and the pull rod 556 is inserted into the through hole of the cover to connect with the second piston 557. The cover matches the size and shape of the opening of the second section. In this embodiment, the cover can be threaded to the body or integrally formed with the body, etc.

[0082] In the embodiments of this application, the ratio of the inner diameter of the first segment to the inner diameter of the second segment (hereinafter referred to as the first ratio) is not subject to many restrictions. It is only necessary to be able to appropriately amplify the change in tension in the pull ring 559. For example, the first ratio can be 3, 4 or 5, etc.

[0083] In the embodiments of this application, the connecting fluid can be any liquid capable of transmitting tensile force. For example, the connecting fluid can be hydraulic oil or fluorinated fluid. In order for the tension sensor 553 to quickly sense the tension change in the pull ring 559, in the embodiments of this application, the connecting fluid located in the U-shaped through hole 551 can be maintained at a slight positive pressure (e.g., 0.11 MPa or 0.15 MPa, etc.).

[0084] In the embodiments of this application, the shape and structure of the first elastic element 554 are not subject to many restrictions (the same applies to the second elastic element 558 and the third elastic element 49). It is only necessary that the first elastic element 554 is elastic and capable of transmitting changes in the force applied to the first piston 555. For example, the first elastic element 554 can be a straight rod with elasticity, or something like... Figure 10 The spring shown is an example.

[0085] In the embodiments of this application, there are no restrictions on the connection method between the pull ring 559 and the pull rod 556. For example, the pull ring 559 and the pull rod 556 can be welded, integrally formed, or screwed together.

[0086] It is important to note that the likelihood of the weft thread 2 breaking during the sewing process is closely related to its release speed. In high-speed sewing applications, if the release speed of the weft thread 2 is less than the pulling speed of the shuttle 3, it is extremely easy for the weft thread 2 to break. Therefore, in the embodiments of this application, the release parameter may also include the speed at which the weft thread 2 is released. That is, the sensor assembly 55 may also include a speed sensor, which is used to measure the release speed of the weft thread 2.

[0087] In embodiments of this application, sensor assembly 55 may further include a speed sensor.

[0088] It is important to understand that if the sensor assembly 55 is a combination of a speed sensor and a tension sensor as described in the above embodiments, the tension sensor and speed sensor need to be installed separately. Separately installed sensors can interfere with each other. For example, if the weft thread 2 is in contact with both the tension sensor and the speed sensor, it will definitely affect the tension or speed detection of the weft thread 2. In environments with high humidity and dust, the separate tension sensor and speed sensor are also prone to failure. To solve this technical problem, in one embodiment of this application, the body also includes a central through-hole 552 and a pull rope sensor 53. One end of the central through-hole 552 is connected to a U-shaped through-hole 551. The inner diameter of the central through-hole 552 is smaller than the inner diameter of the second segment of the U-shaped through-hole 551. In use, the opening at the other end of the central through-hole 552 faces vertically upwards, and the float in the pull rope sensor 53 is adapted to the central through-hole 552.

[0089] It is important to understand that the pulling speed of the weft thread 2 is positively correlated with the moving distance of the second piston 557 along the first moving direction. That is, the greater the pulling speed of the weft thread 2 by the pulling device 4, the greater the pulling force on the pull ring 559, and consequently, the greater the moving distance of the pull ring 559 along the first moving direction (equal to the moving distance of the second piston 557 along the first moving direction). If the moving distance of the second piston 557 along the first moving direction is greater, the increase in liquid level in the second section of the U-shaped through-hole 551 will be greater. If the liquid level in the second section of the U-shaped through-hole 551 increases, the liquid level in the middle through-hole 552 will necessarily decrease. According to the principle of saving effort but not work, the smaller the diameter of the piston (i.e., the float of the rope sensor 53), the longer the moving distance. Specifically, the formula for calculating the moving distance of the float of the rope sensor 53 is as follows:

[0090] D2 = D1 × (S1 / S2)

[0091] Wherein, D2 represents the movement distance of the float of the pull rope sensor 53; D1 represents the movement distance of the second piston 557; S1 represents the cross-sectional area of ​​the second piston 557; and S2 represents the cross-sectional area of ​​the float of the pull rope sensor 53. In the embodiments of this application, since the inner diameter of the intermediate through hole 552 is smaller than the inner diameter of the second segment of the U-shaped through hole 551 (that is, the cross-sectional area of ​​the float is smaller than the cross-sectional area of ​​the second piston 557), the movement distance of the float is greater than the movement distance of the second piston 557.

[0092] In other words, in this embodiment, even if the pulling speed of the weft thread 2 changes only slightly (i.e., the pulling force on the pull ring 559 changes only slightly), resulting in only a small distance change in the pull ring 559 (i.e., a small distance change in the second piston 557), as long as the ratio of the cross-sectional area of ​​the second piston 557 to the cross-sectional area of ​​the float (i.e., the ratio of the inner diameter of the second section of the U-shaped through hole 551 to the inner diameter of the middle through hole 552, hereinafter referred to as the second ratio) is sufficiently large, the float of the pull rope sensor 53 can still produce a significant distance movement. In other words, in this embodiment, a pull rope sensor 53 with lower sensitivity can also be used, which can save costs and avoid the phenomenon that the pull rope sensor 53 cannot detect the small changes in the moving speed of the weft thread 2.

[0093] In the embodiments of this application, the compatibility of the float in the pull-cord sensor 53 with the intermediate through-hole 552 means that the float can move freely within the intermediate through-hole 552, and the fluid in the intermediate through-hole 552 will not overflow through the gap between the float and the intermediate through-hole 552. For example, the outer diameter of the float can be equal to the inner diameter of the intermediate through-hole 552, or a sealing structure such as a sealing ring can be provided between the float and the intermediate through-hole 552.

[0094] In this embodiment, the value of the second ratio is not limited, as long as it can appropriately amplify the distance movement of the float in the rope sensor 53. For example, the second ratio can be 4, 6, or 8, etc.

[0095] In this embodiment, during use, the weft thread 2 only needs to contact the pull ring 559. The tension sensor 553 and the pull rope sensor 53 can generate corresponding detection results through the communicating fluid in the U-shaped through hole 551. Compared to both sensors requiring contact with the weft thread 2 to generate results, this embodiment avoids the phenomenon of large detection error caused by too many objects contacting the weft thread 2. Furthermore, the sensing parts of the tension sensor 553 and the pull rope sensor 53 in this embodiment are located in the sealed U-shaped through hole 551. That is to say, the sensing parts of the tension sensor 553 and the pull rope sensor 53 in this embodiment are not affected by humidity and dust in the usage environment, and are not prone to failure.

[0096] It is important to understand that during long-term use, if the fluid in the U-shaped through-hole 551 decreases (e.g., due to evaporation or minor leakage), the detection accuracy of the sensor assembly 55 will be affected. To avoid affecting the detection accuracy of the sensor assembly 55 due to a decrease in the fluid in the U-shaped through-hole 551, in one embodiment of this application, the main body is further provided with a liquid inlet pipe 56, which is connected to the U-shaped through-hole 551. Fluid can be periodically replenished to the U-shaped through-hole 551 through the liquid inlet pipe 56.

[0097] In one embodiment of this application, the inlet pipe 56 is provided with a pressure reducing valve 57. By providing the pressure reducing valve 57, the pressure of the connecting fluid in the U-shaped through hole 551 is not affected by external pressure (e.g., the output pressure of the inlet assembly 58) during the replenishment of connecting fluid into the U-shaped through hole 551, and can be maintained at a fixed value after the connecting fluid is replenished.

[0098] In order to automatically replenish the connecting fluid into the U-shaped through-hole 551, in one embodiment of this application, such as Figure 11 As shown, the wire feeding device 5 also includes a liquid inlet assembly 58, which is used to inject a connecting liquid into the U-shaped through hole 551 through the liquid inlet pipe 56.

[0099] In the embodiments of this application, the liquid inlet assembly 58 can be any component or assembly capable of injecting a circulating liquid into the U-shaped through hole 551. For example, the liquid inlet assembly 58 can be a pump or a gravity tower (refer to a water tower), etc.

[0100] The embodiment of the sensor assembly proposed in this application, through the U-shaped through-hole, amplifies the tension borne by the weft thread through the circulating fluid within the U-shaped through-hole. Even using a tension sensor with lower sensitivity, it can sensitively detect minute changes in the tension borne by the weft thread. Furthermore, the tension sensor is located within the sealed space of the U-shaped through-hole, making it less susceptible to external environmental influences; that is, the sensor assembly is not easily affected by environmental interference and will not fail. In other words, this sensor assembly is suitable for applications involving rock wool board stitching.

[0101] Having described the sensor assembly proposed in the embodiments of this application, the following describes an embodiment of a sewing device proposed in this application. In this embodiment, the sewing device includes a sensor assembly 55 as described above. Specifically, the sensor assembly 55 can monitor the tension or speed of the weft thread 2 carried by the shuttle 3.

[0102] It is important to understand that in the sewing equipment, the weft thread 2 carried by the shuttle 3 is released from the thread-feeding device 5. In the embodiments of this application, the thread-feeding device 5 is not limited; it only needs to be able to release the weft thread 2 under the pulling of the shuttle 3. For example, the thread-feeding device 5 can be as follows: Figure 7 As shown, it includes a pay-off reel assembly 52. ​​When the shuttle 3 pulls the weft thread 2, the pay-off reel in the pay-off reel assembly 52 can rotate to release the weft thread 2 wrapped around it.

[0103] It is easy to understand, such as Figure 7 As shown, if the feed roller in the feed roller assembly 52 gets stuck, the weft thread 2 is very likely to break during the sewing process. As mentioned above, if the weft thread 2 breaks, it will affect the mechanical strength of the rock wool board.

[0104] In order to solve such Figure 7 The illustrated pay-off device 5 has a technical problem where the weft thread 2 easily breaks if the pay-off reel gets stuck during use. This application also proposes an embodiment of the pay-off device. In this embodiment, the pay-off device 5 includes a base plate 51 and two pay-off reel assemblies 52. (As shown...) Figure 8 As shown, both pay-off reel assemblies 52 are disposed on the base plate 51, and the starting ends of the weft yarn 2 wound by the two pay-off reel assemblies 52 are connected together. In the embodiments of this application, the starting ends of the weft yarn 2 wound by the two pay-off reel assemblies 52 being connected together means that the weft yarn 2 wound by the pay-off reel assemblies 52 can be knotted together, fused together, or the two pay-off reel assemblies 52 can be wound with the same weft yarn 2, etc.

[0105] In this embodiment, the placement of the two pay-off reel assemblies 52 is not strictly limited, as long as the taut weft 2 between the two pay-off reel assemblies 52 can be easily attached to the pull-out device 4 described below. For example, the extension direction of the taut weft 2 can be parallel to the extension direction of the telescopic part in the telescopic assembly 42; the length of the taut weft 2 can be 5 cm or 10 cm, etc.

[0106] In this application, as Figures 7 to 9 As shown, the pay-off reel assembly 52 includes at least one rotatable pay-off reel, on which the weft yarn 2 is wound. That is, in the embodiments of this application, the pay-off reel assembly 52 can be any assembly having a rotatable pay-off reel. Having a rotatable pay-off reel assembly is mature technology, and will not be elaborated upon here. For example, the pay-off reel assembly 52 can be as follows: Figure 7 As shown, it can also be the winding roller disclosed in the patent document with publication number CN222138363U, entitled "A Yarn Feeder for Detecting Broken Yarn".

[0107] In this embodiment, the weft thread 2 will only break due to jamming if both feed rollers in the two feed roller assemblies 52 become stuck. The probability of both feed rollers in the two feed roller assemblies 52 becoming stuck is lower than the probability of one feed roller becoming stuck. In other words, this embodiment, by using two feed roller assemblies 52, can reduce the probability of the weft thread 2 breaking due to feed roller jamming during the sewing process.

[0108] To further prevent the weft thread 2 from breaking due to jamming of the pay-off reel assembly 52, in one embodiment of this application, the pay-off device 5 further includes a sensor assembly 55 corresponding to each pay-off reel assembly 52 and a resistance motor 54 corresponding to each pay-off reel assembly 52. ​​The sensor assembly 55 is used at least to measure the release parameters when the corresponding pay-off reel assembly 52 releases the weft thread 2, and the release parameters may include the tension when releasing the weft thread 2. As mentioned above, the weft thread 2 must be pulled by an external force (i.e., pulled by the pull device 4) to make the corresponding pay-off reel in the pay-off reel assembly 52 rotate, thereby releasing the weft thread 2. That is to say, in this embodiment, the weft thread 2 can only be released normally if the pulling force applied to the weft thread 2 (i.e., the tension when releasing the weft thread 2) is greater than the resistance of the rotation of the pay-off reel in the pay-off reel assembly 52. ​​In other words, if the resistance of the rotation of the pay-off reel is greater than the maximum tension that the weft thread 2 can withstand, the weft thread 2 is easily broken. In this embodiment, a resistance motor 54 is disposed on the corresponding pay-off reel assembly 52 and is used to adjust the weft yarn 2 release speed of the pay-off reel assembly 52 (i.e., adjust the rotation speed of the pay-off reel) based on the release parameters. That is, if the rotational resistance of the pay-off reel in the pay-off reel assembly 52 is large, the resistance motor 54 is activated to reduce the resistance of the reel assembly 52 in releasing the weft yarn 2, thereby preventing the weft yarn 2 from being torn due to excessive tension.

[0109] It should be clear that controlling the rotation speed of the rotating body (the wire feeding wheel in the wire feeding wheel assembly 52) by a motor (i.e., the resistance motor 54) is a mature technology, and will not be elaborated here.

[0110] In use, if the sensor assembly 55 measures that the tension when releasing the weft yarn 2 is greater than the third threshold, the resistance motor 54 can rotate the pay-off wheel to promote the release of the weft yarn 2, thus avoiding excessive tension on the weft yarn 2 and causing it to break.

[0111] In the embodiments of this application, a third threshold can be set as needed, for example, the third threshold can be 8N or 9N.

[0112] In an embodiment where the sensor assembly 55 can monitor the release speed of the weft thread 2, if the sensor assembly 55 measures that the release speed of the weft thread 2 is less than the fourth threshold, the reel can be rotated by the resistance motor 54 to promote the release of the weft thread 2, thus preventing the weft thread 2 from breaking due to the release speed being too low.

[0113] In the embodiments of this application, a fourth threshold can be set as needed, for example, the fourth threshold can be 8mm / s or 10mm / s, etc.

[0114] In the production of rock wool boards, cotton thread is used to sew the rock wool together to improve the mechanical strength of the boards. Traditional rock wool sewing equipment, such as... Figure 1 As shown (a mature technology, therefore only the shuttle 3 is shown), the shuttle 3 carries the weft thread 2 from the thread-feeding device 5 through multiple warp loops 1 in one go, thus forming a continuous chain stitch. This stitching method has the following drawback: if the weft thread 2 breaks, the entire row of stitches on the rock wool board will fail (refer to the sealing stitching structure of a nylon bag). To solve this technical problem, this application proposes an embodiment of a stitching device. Specifically, the stitching device includes: a thread-feeding device 5 corresponding to each warp loop 1, and a thread-pulling device 4 corresponding to each thread-feeding device 5. In use, the thread-pulling device 4 carries the weft thread 2 from the corresponding thread-feeding device 5 through the corresponding warp loop 1. That is, during the stitching process, each warp loop 1 corresponds to one thread-pulling device 4 and one thread-feeding device 5.

[0115] In use, the weft thread 2 in the pay-off device 5 is passed through the corresponding warp loop 1 via the thread-pulling device 4. That is, the thread-pulling device 4 ensures that each weft thread 2 passes through only one warp loop 1. After sewing, each seam structure on the rock wool board is independent of the others; even if one weft thread breaks, it will not affect the other seam structures. Compared to the prior art where the tensile strength of the rock wool board decreases by more than 50% if a single weft thread 2 breaks, after sewing the rock wool board using the sewing equipment in this embodiment, the impact of any single weft thread 2 breaking on the tensile strength of the rock wool board is less than 10% (i.e., the tensile strength of the rock wool board remains above 90%).

[0116] In the embodiments of this application, there are no major restrictions on the thread-pulling device 4. It is only required that the thread-pulling device 4 can pass the weft thread on the thread-feeding device 5 through the corresponding warp loop 1 during the sewing process. For example, the thread-pulling device 4 can be a manually controlled hook. Each time sewing is performed, the weft thread 2 on the thread-feeding device 5 is passed through the corresponding warp loop 1 by the hook in a manual control manner.

[0117] In order to automatically pass the weft thread 2 on the pay-off device 5 through the corresponding warp loop 1, in one embodiment of this application, the pull-out device 4 may include a bracket 41, a telescopic component 42, a hooking component, and a clamping component. Specifically, as shown... Figure 2 As shown, the telescopic component 42 is mounted on the bracket 41. The hooking component is mounted at the output end of the telescopic component 42. The hooking component has a hooking state and a disengaging state. When the hooking component is in the hooking state, it can hook with the taut weft thread 2 in the thread feeding device 5; when the hooking component is in the disengaging state, it can disengage from the weft thread 2.

[0118] In this embodiment, the output end of the telescopic component 42 refers to the telescopic part of the telescopic component 42. The same applies to the output end of the piston cylinder (i.e., the piston rod in the piston cylinder) mentioned below, which will not be elaborated further.

[0119] When using, such as Figure 2 As shown, firstly, the telescopic component 42 extends, allowing it to carry the attachment component through the corresponding warp loop 1. Then, the attachment component switches from a disengaged state to an engaged state, meaning it engages with the taut weft thread 2 in the pay-off device 5. Further, the telescopic component 42 shortens. Since the attachment component is engaged with the taut weft thread 2 in the pay-off device 5, shortening the telescopic component 42 allows it to carry the weft thread 2 through the warp loop 1. After the weft thread 2 passes through the warp loop 1, the needle loop can be unhooked and tightened (needle loop tightening is a mature technique and will not be elaborated here). After the needle loop tightening step is completed, the attachment component is switched from an engaged state to a disengaged state, thus disconnecting the attachment component from the weft thread 2.

[0120] It is important to note that the weft thread 2 can only be easily hooked with the hooking component when it is taut. After the taut weft thread 2 is carried through the warp loop 1 by the hooking component, the weft thread 2 released by the pay-off device 5 is difficult to keep taut. That is to say, in the next round of needle loop tightening and sewing, it is difficult for the weft thread 2 to pass through the warp loop 1 through the hooking component. In order to allow the non-taut weft thread 2 to pass through the warp loop 1 in the next round of needle loop tightening and sewing, the clamping component in this embodiment is also required. In this embodiment, the clamping component is also provided at the output end of the telescopic component 42. The clamping component has a clamping state and a releasing state; when the clamping component is in the clamping state, it can clamp the weft thread 2 pulled out from the pay-off device 5; when the clamping component is in the releasing state, it can release the clamp on the weft thread 2.

[0121] When using, such as Figure 2 As shown, if it is necessary to use the thread-pulling device 4 to pass the unstretched weft thread 2 in the thread-feeding device 5 through the corresponding warp loop 1, firstly, the telescopic component 42 extends, and then the extended telescopic component 42 can carry the clamping component through the corresponding warp loop 1; then the clamping component switches from the released state to the clamping state, that is, the clamping component can clamp the unstretched weft thread 2 in the thread-feeding device 5; further, the telescopic component 42 shortens. Since the clamping component has clamped the unstretched weft thread 2, if the telescopic component 42 shortens, the clamping component can carry the weft thread 2 through the warp loop 1. After the weft thread 2 passes through the warp loop 1, the needle loop can be unloaded and the sew tightened. After the needle loop unloading and sewing step is completed, the clamping component switches from the clamping state to the released state, thereby releasing the clamp on the weft thread 2.

[0122] In the embodiments of this application, the shape and structure of the bracket 41 are not subject to many restrictions, as long as the bracket 41 can fix and support the telescopic component 42. For example, the shape and structure of the bracket 41 can be designed based on the suturing equipment so that it is easy to fix the bracket 41 to the suturing equipment during use; or the shape and structure of the bracket 41 can be designed based on the surrounding site or other equipment so that it is easy to fix the bracket 41 to these sites or equipment during use. It should be noted that adapting the shape or structure of a product (e.g., bracket 41, liquid inlet component 58, inflation component, and negative pressure component) to the installation environment is a mature technology, and will not be listed in detail here. For example, to facilitate the threaded connection between the bracket 41 and the suturing equipment, threaded holes can be pre-set on the bracket 41; or, to reduce the weight of the bracket 41, the bracket 41 can be made hollow; or, the shape and structure of the bracket can be set based on the structure of the suturing equipment (e.g., if the suturing equipment has a plane, the bracket can be set as a plate-like structure that can fit the plane), etc.

[0123] As described above, in this embodiment, the telescopic component is mainly used to carry the hooking component and the clamping component in a linear reciprocating motion to thread through and out of the corresponding warp loop 1. In other words, in this embodiment, the telescopic component is not subject to many restrictions; it only needs to be able to carry the hooking component and the clamping component in a linear reciprocating motion. In other words, the telescopic component can be any commercially available component capable of extending and retracting; for example, it can be any of an electric actuator, a hydraulic actuator, or a cylinder.

[0124] In embodiments of this application, the hooking component can be any component capable of hooking (i.e., the hooking component is in the hooked state) and unhooking (i.e., the hooking component is in the unhooked state) with the taut weft yarn 2. For example, the hooking component can be a hook disposed at the output end of the telescopic component 42, or as... Figures 4 to 6 The components shown.

[0125] In applications where the hook is used as the attachment component, if it is necessary to use the attachment component to pass the taut weft 2 through the warp loop 1, the taut weft 2 can be manually hooked onto the hook after the hook (i.e., the attachment component) at the output end of the telescopic component 42 passes through the warp loop 1 (i.e., the attachment component is manually switched from the unattached state to the attached state). After the current sewing step is completed, the weft 2 can be manually removed from the hook (i.e., the attachment component is manually switched from the attached state to the unattached state).

[0126] To enable the attachment assembly to automatically switch from a disengaged state to an engaged state or vice versa, in one embodiment of this application, the attachment assembly includes a power gear 43, a gear ring 44, a hook 45, and a drive component. Figure 3 As shown, both the drive gear 43 and the gear ring 44 are rotatably mounted on the output end of the telescopic assembly 42, and the drive gear 43 and the gear ring 44 mesh with each other. A hook 45 is mounted on the gear ring 44 and is used to engage with the taut weft thread 2 in the pay-off device 5. A drive member is used to drive the drive gear 43 to rotate.

[0127] In this embodiment, when the mounting component is in the mounting state, as follows: Figure 4 As shown, when the attachment component is in the unattached state, as Figure 5 As shown. In use, when the telescopic component is fully extended, if it is necessary for the attachment component to automatically switch from the disengaged state to the engaged state, the drive component can rotate the power gear 43. Since the power gear 43 and the gear ring 44 mesh, if the power gear 43 rotates, the gear ring 44 will also rotate. Since the hook 45 is located on the gear ring 44, if the gear ring 44 rotates, the hook 45 can be moved from the disengaged state to the engaged state. Figure 5 The position in the middle has been changed to Figure 4 The position in the middle. That is to say, in this embodiment, if the hook component needs to automatically switch from the unattached state to the attached state, it is only necessary to use the drive component to make the hook 45 move from the attached state to the attached state. Figure 5 The position in the middle has been changed to Figure 4 The desired position is as described above. Similarly, if the attached component needs to automatically switch from the attached state to the unattached state, simply use the driver to move the hook 45 from the attached position. Figure 4 The position in the middle has been changed to Figure 5 The position in the middle is fine.

[0128] Specifically, the process of switching the attached component from the unattached state to the attached state is as follows:

[0129] like Figure 13 As shown, the hook assembly and the taut weft 2 are at a certain distance, and the hook 45 and the taut weft 2 are not hooked together (that is, the hook assembly is in the disengaged state). First, through the output end of the telescopic assembly 42, the hook assembly is controlled to move along the... Figure 13 In the middle, direction A approaches the taut latitude line 2, until... Figure 14 As shown, the taut weft thread 2 is located within the ring formed by the gear ring 44; furthermore, the gear ring 44 is driven by the power gear 43 along the... Figure 14 Rotate in direction C to make hook 45 and taut weft 2 as follows Figure 15 As shown; finally, as Figure 15 As shown, the output end of the telescopic component 42 controls the hanging component to move along the same path. Figure 15The direction B in the middle retracts. During the retraction of the hook assembly, hook 45 and weft thread 2 can always form a shape like... Figure 4 The attached component is shown (i.e., the attachment component is in the attached state).

[0130] Specifically, the process of switching the attached component from the attached state to the unattached state is as follows:

[0131] As mentioned above, the control of the mounting components along the... Figure 15 If the direction B is reversed until the latitude line 2 passes through the corresponding longitude ring 1 (while the coupling assembly is still in the coupling state), then the gear ring 44 is driven by the power gear 43 along the direction B. Figure 4 Rotate in direction D until it is as shown Figure 5 As shown, weft thread 2 is disconnected from hook 45 (that is, the hook assembly is in the disengaged state).

[0132] In the embodiments of this application, the power gear 43 or gear ring 44 can be rotatably disposed on the output end of the telescopic component 42 in any reasonable manner. For example, the power gear 43 is fixedly provided with a rotating shaft, and the power gear 43 forms a rotatable connection with the output end of the telescopic component 42 through the rotating shaft; or the rotating shaft is fixedly provided on the output end of the telescopic component 42, and the power gear 43 can be rotatably connected to the output end of the telescopic component 42 through the rotating shaft fixed to the output end of the telescopic component 42. It should be clear that the rotatable connection between a gear (i.e., the power gear 43 or gear ring 44) and an object (i.e., the output end of the telescopic component 42) is a mature technology, and will not be listed or elaborated here.

[0133] In the embodiments of this application, the shape and structure of the hook 45 are not limited, as long as the hook 45 can be hooked with the taut weft yarn 2. For example, the weft yarn 2 can be V-shaped, or it can be like... Figure 4 The shape shown is semi-circular. In this embodiment, there are no strict restrictions on the relative position and connection method of the hook 45 and the gear ring 44, as long as the hook 45 can be hooked to the taut weft thread 2. For example, the hook 45 can be welded or screwed to the gear ring 44; or, as... Figure 4 The gear ring 44 shown is a semi-circular ring, and the hook 45 extends out from the notch of the gear ring 44.

[0134] In the embodiments of this application, the driving component can be any part capable of driving the power gear 43 to rotate. For example, the driving component can be a micro motor. Driving a gear (i.e., the power gear 43) to rotate via a motor is a mature technology and will not be elaborated here. In order to make the overall structure of the wire pulling device 4 smaller, the driving component can be a magnetic drive component. Magnetic drive of a rotor (i.e., the power gear 43) is a mature technology and will not be elaborated here.

[0135] In the embodiments of this application, the clamping component can be any component capable of clamping the non-stretched weft yarn 2 (i.e., the clamping component is in a clamping state) and releasing the clamping of the weft yarn 2 (i.e., the clamping component is in a released state). For example, the clamping component can be the clamping component disclosed in the patent document with publication number CN221587588U, entitled "A clamping component for a traction machine"; or it can be the clamping component disclosed in the patent application document with publication number CN119927882A, entitled "Automatic robotic arm clamping mechanism and tooling fixture including the thereof".

[0136] As mentioned earlier, the clamping component can only be used to clamp the non-taut weft yarn 2 through the warp ring 1 after the output end of the telescopic component 42 successfully carries the clamping component through the warp ring 1. In other words, if the clamping component cannot pass through the warp ring 1 smoothly, the weft yarn 2 will definitely not be able to pass through the warp ring 1 during the sewing process. If the weft yarn 2 cannot pass through the warp ring 1, a sewn structure cannot be formed, meaning the rock wool cannot be sewn. It should be noted that the more complex the structure of the clamping component, the larger its size. During the sewing process of the rock wool, the size of the warp ring 1 formed is limited. With the size of the formed warp ring 1 remaining constant, if the size of the clamping component is larger, it becomes more difficult for the clamping component to pass through the warp ring 1.

[0137] To simplify the structure of the clamping assembly and reduce its size so that it can easily pass through the warp loop 1, in one embodiment of this application, the clamping assembly includes an inflator (not shown) and two air bladders 46. The two air bladders 46 are disposed at the output end of the telescopic assembly 42. When the clamping assembly is in the clamping state, the minimum distance between the two air bladders 46 is 0 (i.e., the air bladders 46 are inflated); when the clamping assembly is in the released state, the minimum distance between the two air bladders 46 is at least greater than the diameter of the weft yarn 2 (i.e., the air bladders 46 are not inflated). The inflator is connected to the two air bladders 46 and is used to inflate at least the two air bladders 46 with gas.

[0138] In this embodiment, when the clamping component is in the released state, as follows: Figure 5 As shown (i.e., airbag 46 is not inflated); when the clamping assembly is in the clamping state, as Figure 6As shown (i.e., airbags 46 are inflated). In use, if the clamping assembly is in the released state, the two airbags 46 are smaller in volume, meaning the clamping assembly is smaller in size, which facilitates the telescopic assembly 42 carrying the clamping assembly through the warp ring 1. When the telescopic assembly is fully extended (i.e., the clamping part in the clamping assembly passes through at least the warp ring 1), if it is necessary to clamp the unstretched weft 2 on the pay-off device 5, it is only necessary to inflate the two airbags 46 using the inflation component. If the two airbags 46 are inflated, the gap between the two airbags 46 is 0 after inflation, thus enabling the clamping of the weft 2 located between the two airbags 46. If it is necessary to release the clamping of the weft 2, the gas filled in the airbags 46 is released.

[0139] In the embodiments of this application, there is no limitation on the type of gas filled in the airbag 46. For example, the gas can be air or nitrogen.

[0140] In the embodiments of this application, the shape and structure of the airbag 46 are not subject to many restrictions. It is only necessary that the two airbags 46 can smoothly clamp the weft 2 after inflation.

[0141] In the embodiments of this application, the inflator can be any component capable of inflating the airbag 46. For example, the inflator can be an air pump or an air compressor tank, etc.

[0142] As described above, in the embodiments of this application, if the airbags 46 are inflated, the two airbags 46 can clamp the weft yarn 2 (i.e., the clamping components switch from a release state to a clamping state); if the gas in the airbags 46 is released, the two airbags 46 can release the clamping of the weft yarn 2 (i.e., the clamping components switch from a clamping state to a release state). To facilitate the switching of the two airbags 46 from the clamping state to the release state, in the embodiments of this application, the inflator can be an inflatable pump that can be used for both inflating and inhaling; or, the airbags 46 are elastic and equipped with electronic deflation valves. It should be noted that inflatable pumps that can be used for both inflating and inhaling and electronic valves (i.e., electronic deflation valves) are mature technologies and will not be elaborated here.

[0143] In use, if the inflator is a dual-purpose inflator and deflator pump, air is pumped into the airbag 46, causing it to inflate; air is drawn from the airbag 46, causing it to deflate. If the inflator can only inflate and not deflate, and the airbag 46 is elastic and equipped with an electronic deflation valve, air is pumped into the airbag 46, causing it to inflate; the elastic airbag 46 automatically deflates when the electronic deflation valve is opened.

[0144] In other embodiments of this application, the clamping component may be as follows: Figure 16As shown, it includes two electromagnets 48. Multiple third elastic elements 49 are disposed between each electromagnet 48 and the output end of the telescopic assembly 42. Before energization, the minimum distance formed between the two electromagnets 48 (i.e., as shown) Figure 16 The spacing d) is greater than the diameter of the latitude line 2, and the direction of the minimum spacing is perpendicular to the extension direction of the output end of the telescopic component 42 (i.e., as shown in the figure). Figure 16 (Direction A in the middle). After being energized, the two electromagnets 48 can overcome the elastic force of each third elastic element 49 and attract each other (that is, the minimum distance between the two electromagnets 48 becomes 0), thereby clamping the weft 2; after the energization is stopped, the two electromagnets 48 can be reset under the elastic force of the third elastic element 49, thereby releasing the clamping of the weft 2.

[0145] As mentioned above, the switching of the states of the hooking component and the clamping component occurs after the telescopic component 42 has extended or shortened to a fixed position. For example, the switching of the hooking component from the disengaged state to the hooked state, or the switching of the clamping component from the released state to the clamping state, occurs after the output end of the telescopic component 42 has carried the hooking component and the clamping component to a fixed position (i.e., the telescopic component has extended to its full length as mentioned above). In order to accurately determine the stroke of the telescopic component 42 for control, in one embodiment of this application, the pull cable device 4 may further include a switch component 47, which is used at least to control the stroke of the telescopic portion of the telescopic component 42.

[0146] In the embodiments of this application, the type of switch component 47 is not limited. That is, the switch component 47 can be any suitable switch available on the market that can control the travel of the telescopic component 42. For example, the switch component 47 can be a limit switch. The switch component 47 may include a first limit switch, which can stop the telescopic component 42 from extending if it is touched during the extension process. Of course, the switch component 47 may also include a second limit switch, which can stop the telescopic component 42 from shortening if it is touched during the shortening process.

[0147] As mentioned above, if the switch assembly 47 is a limit switch, at least two limit switches (i.e., a first limit switch and a second limit switch) are required to determine whether the telescopic assembly 42 has shortened or extended to its full extent. In automatic control systems, the structure and function of the automatic control system become more complex as the number of electronic devices (e.g., limit switches) increases. This leads to increased interactions and dependencies between the various parts of the automatic control system, making the operation and maintenance of the entire automatic control system more difficult. Furthermore, each electronic device may have potential points of failure. As the number of electronic devices in the automatic control system increases, the probability of failure also increases accordingly. Moreover, a failure of one electronic device may affect the normal operation of other electronic devices, thereby affecting the stability of the entire automatic control system. To reduce the number of limit switches used and thus improve the stability of the automatic control of the pull-wire device 4 in this embodiment, in one embodiment of this application, the switch assembly 47 may include a piston cylinder, a piston rod, a vacuum sensor, and a controller. The piston cylinder is mounted on the bracket 41, and the piston cylinder and piston rod are movably connected. The piston rod is connected to the telescopic portion of the telescopic assembly 42. A vacuum sensor is used to measure the air pressure inside the piston cylinder; a controller is used to control the stroke of the telescopic part in the telescopic assembly 42 based on the air pressure value.

[0148] In use, since the piston rod is connected to the output end of the telescopic assembly 42 (i.e., the telescopic part of the telescopic assembly 42), if the output end of the telescopic assembly 42 extends, the piston rod also extends under the influence of the output end of the telescopic assembly 42, meaning the internal space of the piston cylinder increases and the air pressure inside the piston cylinder decreases; conversely, if the output end of the telescopic assembly 42 shortens, the piston rod also shortens under the influence of the output end of the telescopic assembly 42, meaning the internal space of the piston cylinder decreases and the air pressure inside the piston cylinder increases. In other words, in the embodiments of this application, the air pressure inside the piston cylinder is measured by a vacuum sensor, and the extent to which the telescopic assembly 42 has shortened or extended can be determined based on the air pressure inside the piston cylinder.

[0149] In a specific embodiment of this application, if the air pressure inside the piston cylinder is less than a first preset value, the telescopic component 42 can be considered to have extended to the correct position; if the air pressure inside the piston cylinder is greater than a second preset value, the telescopic component 42 can be considered to have shortened to the correct position.

[0150] In the embodiments of this application, the first preset value and the second preset value can be set according to requirements; that is, there are no restrictions on the setting of the first preset value and the second preset value in this application. For example, the first preset value can be 0.5 atmospheres; the second preset value can be 1.5 atmospheres.

[0151] In the embodiments of this application, the installation positions of some components (e.g., switch assembly 47, liquid inlet assembly 58, inflation component, and negative pressure component) are not subject to excessive restrictions. That is, the positions of these components can be set according to requirements. For example, in the embodiments of this application, switch assembly 47 can be mounted on bracket 41 or on sewing equipment, and the same applies to other components, which will not be listed in detail below.

[0152] As can be seen from the above, if the attaching component or clamping component cannot successfully pass through the warp ring 1, then the rock wool will definitely not be successfully sewn subsequently. It is easy to understand that if the warp threads constituting the warp ring 1 are offset or not fully unfolded, the attaching component or clamping component will have difficulty successfully passing through the warp ring 1. To ensure that the warp threads constituting the warp ring 1 are fully unfolded, thereby facilitating the attachment component or clamping component to pass through the warp ring 1, in one embodiment of this application, the sewing device may further include a negative pressure box 6 and a negative pressure element 7. For example... Figure 12 As shown, the negative pressure chamber 6 is provided with multiple strip-shaped holes 61. Each strip-shaped hole 61 extends along a first direction, which is parallel to the extension direction of the meridian. The input end of the negative pressure component 7 is connected to the interior of the negative pressure chamber 6. The negative pressure component 7 is used to create a negative pressure inside the negative pressure chamber 6.

[0153] In use, the negative pressure component 7 creates a negative pressure inside the negative pressure box 6, causing a large amount of air around the strip hole 61 to flow into the negative pressure box 6 under the influence of the negative pressure. Since the warp threads are relatively soft, the flowing air can "straighten" the warp threads as a large amount of air flows into the negative pressure box 6, thus ensuring that the warp thread loop 1 is fully unfolded.

[0154] In the embodiments of this application, the negative pressure component 7 can be any device capable of removing the air inside the negative pressure box 6 (that is, creating a negative pressure inside the negative pressure box 6), such as a vacuum pump or a blower.

[0155] The embodiment of the sewing device proposed in this application features a sensor assembly with a U-shaped through-hole. This allows the circulating fluid within the through-hole to amplify the tension borne by the weft thread, enabling sensitive detection of even minute changes in tension, even when using a less sensitive tension sensor. Furthermore, the tension sensor is located within the enclosed space of the U-shaped through-hole, making it less susceptible to external environmental influences; that is, the sensor assembly is less prone to failure due to environmental interference. In other words, this sensor assembly is suitable for applications involving rock wool board sewing.

[0156] It is important to clarify that this application uses rock wool sewing as an example to illustrate the sewing equipment described herein, and does not imply that the sewing equipment proposed in this application can only be applied to rock wool sewing applications. It should be understood that the sewing equipment proposed in this application is applicable to any sewing application scenario, such as carpet sewing, garment sewing, aerogel felt sewing, and sewing of inorganic fiber-formed boards, felts, and rolls.

[0157] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sensor assembly (55) characterized by, include: ontology; A U-shaped through hole (551) is provided in the body; the U-shaped through hole (551) includes a first section, an arc-shaped section and a second section connected in sequence; the inner diameter of the first section is larger than the inner diameter of the second section; in use, the openings of the first section and the second section in the U-shaped through hole (551) are both vertically upward, and the inside of the U-shaped through hole (551) contains a communicating fluid; A tension sensor (553) and a first piston (555); the first piston (555) is disposed in the first section of the U-shaped through hole (551); the tension sensor (553) is disposed in the body; the first piston (555) is connected to the tension sensor (553); The second piston (557) is disposed in the second section of the U-shaped through hole (551); A pull rod (556) and a pull ring (559); the first end of the pull rod (556) is connected to the end of the second piston (557) near the second opening, and the pull ring (559) is disposed at the second end of the pull rod (556).

2. The sensor assembly (55) according to claim 1, characterized in that It also includes a first elastic element (554); the tension sensor (553), the first elastic element (554) and the first piston (555) are arranged in the first section of the U-shaped through hole (551) in a vertically downward direction; one end of the first elastic element (554) is connected to the tension sensor (553) and the other end of the first elastic element (554) is connected to the first piston (555).

3. The sensor assembly (55) of claim 1, characterized in that, It also includes a second elastic element (558); the second elastic element (558) is disposed in the second section of the U-shaped through hole (551); the second elastic element (558) stores elastic potential energy, which has a tendency to cause the second piston (557) to move toward the U-shaped bottom of the U-shaped through hole (551).

4. The sensor assembly (55) of claim 1, characterized in that, The main body is also provided with a central through hole (552) and a pull rope sensor (53). One end of the central through hole (552) is connected to the U-shaped through hole (551). The inner diameter of the central through hole (552) is smaller than the inner diameter of the second section of the U-shaped through hole (551). In use, the opening of the other end of the central through hole (552) faces vertically upward. The float in the pull rope sensor (53) is adapted to the central through hole (552).

5. The sensor assembly (55) of claim 1, characterized in that, The main body is also provided with a liquid inlet pipe (56), which is connected to the U-shaped through hole (551); the liquid inlet pipe (56) is provided with a pressure reducing valve (57).

6. The sensor assembly (55) according to claim 5, characterized in that It also includes a liquid inlet assembly (58) for injecting a connecting liquid into the U-shaped through hole (551) through the liquid inlet pipe (56).

7. The sensor assembly (55) according to any one of claims 1 to 6, characterized in that The ratio of the inner diameter of the first segment to the inner diameter of the second segment is greater than or equal to 3 and less than or equal to 5.

8. The sensor assembly (55) of claim 4, characterized by The ratio of the inner diameter of the second segment to the inner diameter of the intermediate through hole (552) is greater than or equal to 4 and less than or equal to 8.

9. A suturing device, characterized by Includes the sensor assembly (55) as described in any one of claims 1 to 8.

10. The suturing apparatus of claim 9, wherein, It also includes a wire feeding device (5); the wire feeding device (5) includes: Base plate (51); Two pay-off reel assemblies (52); both pay-off reel assemblies (52) are disposed on the base plate (51); the beginning ends of the weft yarn (2) wound by the two pay-off reel assemblies (52) are connected; A sensor assembly (55) corresponding to each of the pay-off reel assemblies (52); the sensor assembly (55) is used at least to measure the release parameters when the corresponding pay-off reel assembly (52) releases the weft thread (2); the release parameters include the tension and / or speed when the weft thread (2) is released; A resistance motor (54) is provided for each of the wire feeding spool assemblies (52); the resistance motor (54) is provided on the corresponding wire feeding spool assembly (52) and is used to adjust the weft (2) release speed of the wire feeding spool assembly (52) based on the release parameters.

11. The suturing apparatus of claim 10, wherein, Also includes: Negative pressure box (6); the negative pressure box (6) is provided with a plurality of strip holes (61); in use, each strip hole (61) extends along a first direction, the first direction being parallel to the extension direction of the meridian; Negative pressure component (7); the input end of the negative pressure component (7) is connected to the inside of the negative pressure box (6); when in use, it is used to create negative pressure inside the negative pressure box (6).

12. The suturing apparatus of claim 10, wherein, During the suturing process, the suturing device forms multiple warp loops (1); the suturing device includes: A wire feeding device (5) that corresponds one-to-one with each warp loop (1); A puller (4) corresponds one-to-one with each pay-off device (5); when in use, the puller (4) is used to carry the weft (2) in the corresponding pay-off device (5) through the corresponding warp loop (1).

13. The suturing apparatus of claim 12, wherein, The wire pulling device (4) includes: Support (41); Telescopic component (42) is disposed on the bracket (41); A hooking component is provided at the output end of the telescopic component (42); the hooking component has a hooking state and a de-hooking state; when the hooking component is in the hooking state, it can hook with the taut weft thread (2) in the thread feeding device (5); when the hooking component is in the de-hooking state, it can de-hook with the weft thread (2); A clamping component is disposed at the output end of the telescopic component (42); the clamping component has a clamping state and a releasing state; when the clamping component is in the clamping state, it can clamp the weft thread (2) drawn out from the thread feeding device (5); when the clamping component is in the releasing state, it can release the clamping of the weft thread (2).

14. The suturing apparatus of claim 13, wherein, The telescopic assembly (42) includes any one of an electric push rod, a hydraulic push rod, or a cylinder.

15. The suturing apparatus of claim 13, wherein, The mounting component includes: A power gear (43) and a gear ring (44); the power gear (43) and the gear ring (44) are rotatably disposed at the output end of the telescopic assembly (42), and the power gear (43) and the gear ring (44) mesh with each other; A hook (45) is provided on the gear ring (44); the hook (45) is used to hook with the taut weft thread (2); A drive unit for driving the power gear (43) to rotate.

16. The suturing apparatus of claim 13, wherein, The clamping assembly includes: Two airbags (46) are disposed at the output end of the telescopic component (42); when the clamping component is in the clamping state, the minimum distance between the two airbags (46) is 0; when the clamping component is in the released state, the minimum distance between the two airbags (46) is at least greater than the diameter of the weft (2); An inflatable component, connected to two air bladders (46), is used to inflate at least two air bladders (46) with gas.

17. The suturing apparatus of claim 13, wherein, It also includes a switch assembly (47), which is used at least to control the travel of the telescopic portion in the telescopic assembly (42).

18. The suturing apparatus of claim 17, wherein, The switching assembly (47) includes a limit switch, or the switching assembly (47) includes: Piston cylinder, disposed on the bracket (41); The piston rod is movably connected to the piston cylinder, and the piston rod is connected to the output end of the telescopic assembly (42); A vacuum sensor is used to measure the air pressure inside the piston cylinder; A controller for controlling the stroke of the output end of the telescopic assembly (42) based on the air pressure value.

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