Openings device with underhealds and loom

Abstract

This utility model relates to the field of textile equipment technology, and discloses a heald frame bottom-mounted shedding device and a loom, including multiple heald frames and a drive mechanism and a transmission mechanism corresponding to each heald frame; the transmission mechanism includes a first swing arm, a second swing arm, and a swing arm connecting rod, the first and second swing arms being rotatably mounted on two central shafts, the two central shafts being respectively mounted on the wall plates on both sides of the loom; the first swing ends of the first and second swing arms are connected by the swing arm connecting rod; two suspension rods are provided at the upper end of the heald frame, the upper ends of the two suspension rods being respectively connected to the second swing ends of the first and second swing arms. This utility model's heald frame bottom-mounted shedding device uses two suspension rods to position the heald frame below the first and second swing arms, solving the problem of limited installation space caused by the transmission and drive mechanisms of the heald frame being installed below the loom in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of textile equipment technology, specifically to a heald frame bottom-mounted opening device and a loom. Background Technology

[0002] Existing shedding devices include a drive mechanism, a cutter arm, and heald frames. The cutter arm is connected to the heald frame via a support rod and is located below the heald frame. The drive mechanism drives the cutter arm to rotate via a transmission device, thereby moving the heald frame up and down. For looms, different fabrics require different numbers of heald frames, with various specifications such as 4, 8, 12, and 16 frames. The number of heald frames corresponds one-to-one with the number of drive mechanisms. For shedding devices with a large number of heald frames, sufficient space is needed to accommodate the drive and transmission mechanisms for the heald frames. However, in existing technologies, the cutter arm is located below the heald frame, meaning that the drive and transmission mechanisms for the heald frames are all located in the space below the loom. When a larger number of heald frames is required, there is insufficient space below the loom to accommodate the transmission and drive mechanisms for each heald frame, thus limiting the number of heald frames that can be installed on the loom. Utility Model Content

[0003] The purpose of this invention is to overcome the aforementioned problems in the prior art and provide a bottom-mounted opening device for the heald frame. This bottom-mounted opening device can provide sufficient installation space for the drive mechanism and transmission mechanism of multiple heald frames, making the layout of the drive mechanism and transmission mechanism of the multiple heald frames more reasonable.

[0004] To achieve the above objectives, this utility model provides a bottom-mounted opening device for heald frames, comprising multiple heald frames and a driving mechanism and a transmission mechanism corresponding to each heald frame;

[0005] The transmission mechanism includes a first swing arm, a second swing arm, and a swing arm connecting rod. The first swing arm and the second swing arm are rotatably mounted on two central shafts, which are respectively mounted on the wall panels on both sides of the loom. The first swing ends of the first swing arm and the second swing arm are connected by the swing arm connecting rod.

[0006] The upper end of the heald frame is provided with two suspension rods, and the upper ends of the two suspension rods are respectively hinged to the second swing ends of the first swing arm and the second swing arm.

[0007] The drive mechanism drives the first swing arm and the second swing arm to swing around their respective central axes, thereby moving the heald frame up and down.

[0008] In an optional embodiment of this invention, the two central shafts are disposed between the two suspension rods and above the heald frame.

[0009] In an optional embodiment of the present invention, the transmission mechanism is configured such that when the heald frame is at the middle height during operation, the first swing end of the first swing arm is located below its central axis on the same side, and the first swing end of the second swing arm is located above its central axis on the same side.

[0010] In an optional embodiment of the present invention, the opening device further includes a sensor, and the second swing arm is provided with a sensing boss that cooperates with the sensor.

[0011] In an optional embodiment of this invention, the drive mechanism includes a servo motor.

[0012] In an optional embodiment of this utility model, the servo motor is provided with a liquid cooling pipe for heat dissipation, and the liquid cooling pipes of multiple servo motors are connected in series to form a liquid cooling system.

[0013] In an optional embodiment of the present invention, the transmission mechanism further includes a crank and a connecting rod, the driving mechanism is used to drive the crank to rotate, one end of the crank away from its axis of rotation is hinged to one end of the connecting rod, and the other end of the connecting rod is hinged to the driving end of the first swing arm.

[0014] In an optional embodiment of the present invention, the first swing arm includes a rocker arm and an adjusting slider, the adjusting slider being used as the drive end connected to the transmission link; the adjusting slider is configured to slide along the length direction of the rocker arm to adjust the distance from the adjusting slider to the central axis of the first swing arm.

[0015] In an optional embodiment of this utility model, the heddle frame consists of 16 pieces.

[0016] This utility model also provides a weaving machine, including the heald frame bottom opening device described in any of the above claims.

[0017] This utility model's bottom-mounted heald frame opening device uses two suspension rods to position the heald frame below the first and second swing arms. The drive mechanism drives the first and second swing arms to swing through the transmission mechanism, thereby causing the heald frame located below to move up and down. This bottom-mounted heald frame arrangement allows both the transmission and drive mechanisms of the heald frame to be placed above the heald frame, making full use of the space above the heald frame and the loom wall panel. This solves the problem of limited installation space caused by the transmission and drive mechanisms of the heald frame being installed below the loom in the prior art. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of a bottom-mounted opening device for a heald frame provided in an embodiment of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure after the pressure plate has been disassembled;

[0021] Figure 3 This is a schematic diagram of the adjusting slider.

[0022] Explanation of reference numerals in the attached figures

[0023] 1. Heddle frame; 2. Transmission mechanism; 21. First swing arm; 210. Rocker arm; 211. Adjusting slider; 212. Insert rod; 213. Groove; 214. Placement slot; 215. Insertion hole; 22. Second swing arm; 220. Sensing boss; 23. Swing arm connecting rod; 25. Transmission connecting rod; 3. Central shaft; 4. Suspension rod; 6. Sensor. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] In this invention, the terms "upper," "lower," "left," "right," "front," "rear," "top," "bottom," "inner," "outer," "vertical," "horizontal," "lateral," and "longitudinal" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. These terms are primarily for the purpose of better describing this invention and its embodiments, and are not intended to limit the indicated device, element, or component to having a specific orientation, or to be constructed and operated in a specific orientation.

[0026] Furthermore, in addition to indicating direction or positional relationship, some of the aforementioned terms may also have other meanings. For example, the term "above" may also be used in some cases to indicate a certain dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this utility model according to the specific circumstances.

[0027] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0028] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, components, or parts (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, components, or parts. Unless otherwise stated, "a plurality of" means two or more.

[0029] like Figure 1-3 As shown, this utility model embodiment provides a bottom-mounted opening device for heald frames, including multiple heald frames 1 and a drive mechanism and a transmission mechanism 2 corresponding to each heald frame 1. The drive mechanism drives the heald frames 1 to move up and down through the transmission mechanism 2. The transmission mechanism 2 includes a first swing arm 21, a second swing arm 22, and a swing arm connecting rod 23. The first swing arm 21 and the second swing arm 22 are rotatably mounted on two central shafts 3, which are respectively mounted on the wall panels on both sides of the loom. The first swing ends of the first swing arm 21 and the second swing arm 22 are connected through the swing arm connecting rod 23. Two suspension rods 4 are provided at the upper end of the heald frame 1, and the upper ends of the two suspension rods 4 are respectively hinged to the second swing ends of the first swing arm 21 and the second swing arm 22. The drive mechanism drives the first swing arm 21 and the second swing arm 22 to swing around their respective central shafts 3 to make the heald frame 1 move up and down.

[0030] In this embodiment, the heald frames 1 are multiple pieces. During the weaving process, the loom drives each heald frame to move, causing the warp yarns to move in an interlaced manner, thus creating an angle, or opening, between the warp yarns. The weft yarns then pass through the opening to weave the fabric. This is existing technology and will not be described in detail here. The multiple heald frames 1 are parallel to each other and spaced apart along the direction of warp yarn transport. The number of heald frames involved in the movement determines the type of fabric, and customers can configure the number of heald frames according to their actual needs. The structure of the heald frames 1 is existing technology and will not be described in detail here.

[0031] In this embodiment, the drive mechanism, used to provide power to the transmission mechanism 2, can be a combination of a common motor and a reducer, or a servo motor or a combination of a servo motor and a reducer. A combination of a servo motor and a reducer is preferred. The installation position of the drive mechanism can be chosen in multiple ways. Since the heald frame 1 is located below the first and second swing arms, the installation position of the drive mechanism can be chosen in multiple ways, without being limited to the space below the loom. Preferably, the drive mechanism is installed on the top of one side wall panel of the loom. This makes full use of the space above the loom, allowing for the installation of multiple drive mechanisms, so that the number of heald frames is not limited by space constraints. Simultaneously, installation on the top of the loom wall panel allows multiple drive mechanisms to be pre-integrated into a single drive module. After the loom wall panel is installed, the drive module is then installed on the wall panel, achieving modular installation, greatly simplifying the installation process, and reducing the processing difficulty of the wall panel. Specifically, the aforementioned drive module includes a mounting bracket with multiple mounting positions for the drive mechanisms. After assembling the drive mechanisms into their corresponding mounting holes, a single drive module is formed.

[0032] In this embodiment, to achieve linkage transmission, the transmission mechanism 2 includes a first swing arm 21, a second swing arm 22, and a swing arm connecting rod 23. The first swing arm 21 and the second swing arm 22 are rotatably mounted on two central shafts 3, respectively. The first swing arm 21 is a driving member, and the second swing arm 22 is a driven member. Each of the first swing arm 21 and the second swing arm 22 includes a first swing end and a second swing end distributed around the same side of the central shaft 3. The second swing arm 22 also includes a driving end distributed around the same side of the central shaft 3. The first swing ends of the first swing arm 21 and the second swing arm 22 are respectively hinged to both ends of the swing arm connecting rod 23. When the driving end of the first swing arm 21 is driven, the first swing arm 21 drives the second swing arm to rotate together through the swing arm connecting rod 23.

[0033] In this embodiment, in order to place the heald frame 1 below the first swing arm 21 and the second swing arm 22 so as to drive the heald frame 1 to move up and down above it, the second swing ends of the first swing arm 21 and the second swing arm 22 are respectively hinged to the two suspension rods 4 at the upper end of the heald frame 1, so that the heald frame is suspended below the first swing arm 21 and the second swing arm 22. When the drive mechanism drives the drive end of the first swing arm 21 to swing the first swing arm 21 and the second swing arm 22 around their respective central axes 3, the second swing ends of the first swing arm 21 and the second swing arm 22 will rotate up or down at the same time, thereby realizing the up and down movement of the heald frame 1 located below through the suspension rods 4.

[0034] This utility model's bottom-mounted heald frame opening device uses two suspension rods to position the heald frame below the first and second swing arms. The drive mechanism drives the first and second swing arms to swing through the transmission mechanism, thereby causing the heald frame located below to move up and down. This bottom-mounted heald frame arrangement allows both the transmission and drive mechanisms of the heald frame to be placed above the heald frame, making full use of the space above the heald frame and the loom wall panel. This solves the problem of limited installation space caused by the transmission and drive mechanisms of the heald frame being installed below the loom in the prior art.

[0035] Optionally, in order to reduce the space occupied by the heald frame and its transmission mechanism, the two central shafts 3 are set between the two suspension rods 4 and above the heald frame 1. When the heald frame is moved up and down, the first swing arm and the second swing arm always swing between the two suspension rods 4, which realizes a more reasonable layout between the first swing arm and the second swing arm and the heald frame, reduces the space occupied between the side walls of the loom, and avoids the layout in the prior art where one swing arm is between the two suspension rods and the other swing arm is outside the two suspension rods.

[0036] Furthermore, the opening device also includes a sensor 6, and the second swing arm 22 is provided with a sensing boss 220 that cooperates with the sensor 6. The positional relationship between the sensor 6 and the sensing boss 220 is set such that when the heald frame is at the middle height h0 of its working height, the sensing boss 220 rotates to the position that cooperates with the sensor 6, so that the sensor 6 can know that the heald frame has reached the middle height h0 through the sensing boss 220 on the second swing arm (for a detailed explanation of the middle height h0, please refer to the following paragraphs in the text, which will not be elaborated here).

[0037] Preferably, to facilitate installation and reduce interference with the transmission mechanism, the sensing boss 220 is positioned at the second swing end of the second swing arm, and the sensor 6 is mounted on the side of the second swing arm 22 away from the first swing arm 21 via a bracket. This layout facilitates the installation and placement of multiple sensors, one-to-one with the heald frame, ensuring that the sensors are located outside the transmission mechanism and do not interfere with its operation or installation, thus achieving a more rational dynamic and static layout.

[0038] Preferably, in order to ensure that the driving end of the first swing arm 21 is above the central axis 3 during operation, so as to facilitate the driving mechanism to drive its swing, the transmission mechanism 2 is configured such that when the heald frame is at the intermediate height h0 during operation, the first swing end of the first swing arm 21 is below the central axis 3 on the same side, and the first swing end of the second swing arm 22 is above the central axis 3 on the same side. It should be explained that during operation, the heald frame needs to move up and down to form an opening for the weft yarn to pass through. Therefore, the heald frame has a highest working height h1 and a lowest working height h2, and the intermediate height here is h0 = (h1 + h2) / 2.

[0039] Specifically, when the height of the frame is h0, the second swing ends of the first swing arm and the second swing arm are located on both sides of the two concentric axes 3 and are on the same horizontal line as the two concentric axes 3.

[0040] In this embodiment, the specific structure of the first swing arm and the second swing arm is not limited, as long as it can satisfy the above-mentioned functions. Preferably, both the first swing arm and the second swing arm include an L-shaped body, with the two ends of the L-shaped body being the first swing end and the second swing end, respectively. In addition, one end of the L-shaped body of the first swing arm extends outward as the driving end of the first swing arm.

[0041] Optionally, to more precisely control the vertical displacement of the heald frame, the drive mechanism includes a servo motor. Preferably, the servo motor is combined with a reducer, which can effectively reduce the motor speed while increasing the output torque, thus enabling more stable vertical movement of the heald frame.

[0042] Furthermore, to achieve unified heat dissipation control of the motors, liquid cooling pipes for heat dissipation are installed inside the servo motors, and the liquid cooling pipes of multiple servo motors are connected in series to form a liquid cooling system. Preferably, each servo motor's liquid cooling pipe is equipped with an independent on / off valve. In this way, when some servo motors are not involved in operation, their corresponding on / off valves can be closed, preventing them from participating in the cooling cycle. This effectively avoids energy consumption and reduces unnecessary waste.

[0043] Furthermore, to facilitate the drive mechanism mounted on the side wall panel to drive the first swing arm to swing, the transmission mechanism 2 also includes a crank and a transmission connecting rod 25. The drive mechanism is used to drive the crank to rotate. The end of the crank away from its axis of rotation is connected to one end of the transmission connecting rod 25, and the other end of the transmission connecting rod 25 is connected to the drive end of the first swing arm 21. The crank only needs to be able to drive the transmission connecting rod to push or pull the drive end of the first swing arm, causing the first swing arm to swing back and forth, when it rotates. The crank can be an eccentric wheel or an eccentric rod.

[0044] Preferably, in order to adjust the vertical movement of the heald frame, the first swing arm 21 includes a rocker arm 210 and an adjusting slider 211. The adjusting slider 211 is used as a drive end and is hinged to the transmission link 25. The adjusting slider 211 is configured to slide along the length direction of the rocker arm 210 to adjust the distance between the adjusting slider 211 and the central axis 3 of the first swing arm 21. The rocker arm 210 extends away from the central axis 3 of the first swing arm 21, and the adjusting slider 211 is fixed to the rocker arm 210 by a fixing device.

[0045] Specifically, the fixing device can directly use fasteners such as bolts to fix the adjusting slider 211 to the rocker arm 210. When it is necessary to adjust the vertical movement of the heald frame, the bolts are removed to release the fixing of the adjusting slider 211. Then the adjusting slider 211 is slid back and forth along the length extension direction of the rocker arm 210 to adjust the distance from the adjusting slider 211 to the central axis 3 on the same side, that is, the distance from the drive end to the central axis on the same side. After adjusting to the appropriate position, it is fixed again.

[0046] In addition, to facilitate adjusting the distance between the adjusting slider 211 and the central shaft 3, other types of fixing devices can be used, such as... Figures 2 to 3 As shown, the fixing device includes a pressure plate (not shown in the figure), one side of which has a protrusion. The first rocker arm has a groove 213 that mates with the protrusion and a placement slot 214 for placing the adjusting slider 211. The placement slot 214 of the first rocker arm has multiple pairs of insertion holes 215, which are spaced apart along the extension direction of the rocker arm 210. The adjusting slider 211 has a pair of insertion rods 212 that mate with each pair of insertion holes 215. During installation, firstly, the pair of insertion rods 212 of the adjusting slider 211 are inserted into one of the pairs of insertion holes 215 on the rocker arm 210. Then, the pressure plate is placed on the adjusting slider 211, and the protrusion of the pressure plate is inserted into the groove 213. Finally, the pressure plate and the first rocker arm are fixed together by fasteners such as bolts and nuts, so that the adjusting slider 211 is clamped between the pressure plate and the first rocker arm. The pair of inserts 212 on the adjusting slider 211 effectively prevents the adjusting slider from rotating relative to the first swing arm during operation, thus ensuring the stability of the heald frame's working stroke. When it is necessary to adjust the distance between the adjusting slider 211 and the central axis 3 on the same side, simply loosen the fasteners used to fix the pressure plate to the first swing arm, then move the adjusting slider 211 to the pair of inserts 215 in another position, and finally tighten the fasteners to fix the adjusting slider 211 back between the pressure plate and the first swing arm. Compared with directly fixing the adjusting slider with bolts, using a pressure plate to fix the adjusting slider eliminates the need to remove the bolts, achieving the effect of adjusting the distance between the adjusting slider 211 and the central axis 3 simply by loosening the bolts.

[0047] Optionally, to enable the loom to produce a wider variety of fabrics and maximize its utilization, heald frames 1 are set to 16 pieces. This allows users to set different numbers of heald frames according to the different fabrics, greatly saving production costs for enterprises.

[0048] An embodiment of this utility model also discloses a loom, including the heald frame lower opening device of any of the above. The loom of this utility model has a more reasonable structural layout and can accommodate more heald frames to work at the same time.

[0049] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A bottom-mounted opening device for a heald frame, characterized in that: It includes multiple heald frames (1) and drive mechanisms and transmission mechanisms (2) corresponding to each heald frame (1); The transmission mechanism (2) includes a first swing arm (21), a second swing arm (22), and a swing arm connecting rod (23). The first swing arm (21) and the second swing arm (22) are rotatably mounted on two central shafts (3), which are respectively mounted on the wall panels on both sides of the loom. The first swing ends of the first swing arm (21) and the second swing arm (22) are connected by the swing arm connecting rod (23). The upper end of the frame (1) is provided with two suspension rods (4), and the upper ends of the two suspension rods (4) are respectively hinged to the second swing ends of the first swing arm (21) and the second swing arm (22); The driving mechanism drives the first swing arm (21) and the second swing arm (22) to swing around their respective central axes (3) by driving the driving end of the first swing arm (21) so that the heald frame (1) moves up and down.

2. The bottom-mounted opening device for the heald frame according to claim 1, characterized in that: The two central shafts (3) are positioned between the two suspension rods (4) and above the heald frame (1).

3. The bottom-mounted opening device for the heald frame according to claim 2, characterized in that: The transmission mechanism (2) is configured such that when the heald frame is at the middle height during the working process, the first swing end of the first swing arm (21) is located below its central axis (3) on the same side, and the first swing end of the second swing arm (22) is located above its central axis (3) on the same side.

4. The bottom-mounted opening device for the heald frame according to claim 3, characterized in that: The opening device also includes a sensor (6), and the second swing arm (22) is provided with a sensing boss (220) that cooperates with the sensor (6).

5. The bottom-mounted opening device for the heald frame according to any one of claims 1-4, characterized in that: The drive mechanism includes a servo motor.

6. The bottom-mounted opening device for the heald frame according to claim 5, characterized in that: The servo motor is equipped with a liquid cooling pipe for heat dissipation, and the liquid cooling pipes of multiple servo motors are connected in series to form a liquid cooling system.

7. The bottom-mounted opening device for the heald frame according to claim 5, characterized in that: The transmission mechanism (2) further includes a crank and a transmission connecting rod (25). The driving mechanism is used to drive the crank to rotate. One end of the crank away from its axis of rotation is hinged to one end of the transmission connecting rod (25), and the other end of the transmission connecting rod (25) is hinged to the driving end of the first swing arm (21).

8. The bottom-mounted opening device for the heald frame according to claim 7, characterized in that: The first swing arm (21) includes a rocker arm (210) and an adjusting slider (211). The adjusting slider (211) is used as the driving end to be connected to the transmission link (25). The adjusting slider (211) is configured to slide along the length direction of the rocker arm (210) to adjust the distance between the adjusting slider (211) and the central axis (3) of the first swing arm (21).

9. The bottom-mounted opening device for the heald frame according to any one of claims 1-4, characterized in that: The heald frame (1) consists of 16 pieces.

10. A loom, characterized in that: Includes the bottom-mounted opening device of the heald frame as described in any one of claims 1-9.

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