A machine front tape falling device suitable for a tape weaving machine

Abstract

The utility model discloses a machine front tape falling device suitable for loom, including support frame, be equipped with winding mechanism on the support frame, winding mechanism includes fixed plate, drive assembly, tension adjusting assembly, rubber wheel and pressure tape cylinder, and fixed plate has two, and two fixed plates are spaced and installed on the support frame, and rubber wheel both ends are rotatedly connected with two fixed plates, and tension adjusting assembly is installed on the fixed plate, and pressure tape cylinder is connected with tension adjusting assembly, and drive assembly is installed on the fixed plate and is used for driving rubber wheel rotation, and the loom tape is crossed between rubber wheel and pressure tape cylinder. The utility model is convenient to install, and the collocation is flexible, can satisfy the processing demand of the tape tension of different products.

Description

Technical Field

[0001] This utility model relates to the field of ribbon weaving machine technology, specifically a front-end ribbon dropping device suitable for ribbon weaving machines. Background Technology

[0002] In ribbon weaving production, front-end and rear-end ribbon drop are two main methods. The rear-end ribbon drop device is typically configured individually for each weaving machine and is linked to the machine's output speed to create stable ribbon tension, which is crucial for product quality. Due to its advantages in tension control, the rear-end method is widely used in the industry. However, when workshop space is limited, the front-end ribbon drop method, which offers higher space utilization, becomes the inevitable choice. But traditional front-end ribbon drop devices have significant drawbacks: they use a uniform, fixed ribbon drop speed, which cannot adapt to the varying output speed requirements of different machines, leading to quality problems such as jamming, reversed tape, and horizontal weaves on slower-output ribbons. While configuring a separate front-end ribbon drop device for each weaving machine can solve this problem, this approach significantly increases equipment costs and lacks economic efficiency. Therefore, developing a front-end ribbon drop device that can adapt to different machine speed requirements and is also economical, while ensuring ribbon drop quality, has become an urgent technical challenge. Summary of the Invention

[0003] To address the aforementioned technical problems, the present invention provides a front-end tape dropping device suitable for ribbon weaving machines.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A tape-dropping device for a ribbon weaving machine includes a support frame with a winding mechanism. The winding mechanism includes a fixed plate, a drive assembly, a tension adjusting assembly, a rubber roller, and a pressure roller. Two fixed plates are spaced apart and mounted on the support frame. The two ends of the rubber roller are rotatably connected to the two fixed plates respectively. The tension adjusting assembly is mounted on the fixed plate, and the pressure roller is connected to the tension adjusting assembly. The drive assembly is mounted on the fixed plate to drive the rubber roller to rotate. The ribbon passes between the rubber roller and the pressure roller.

[0006] As a further improvement, the drive assembly includes a speed regulator and a speed-regulating motor, the speed regulator being connected to the speed-regulating motor, and the drive shaft of the speed-regulating motor being connected to a rubber roller via a transmission assembly.

[0007] As a further improvement, the fixing plate is equipped with a guide assembly, and the webbing is conveyed along the guide assembly after passing between the rubber roller and the pressure roller.

[0008] As a further improvement, the guiding assembly includes a guide frame and a guide rod, the guide frame being mounted to a fixing plate by screws, and the guide rod being mounted on the guide frame.

[0009] As a further improvement, the fixing plate is equipped with a webbing separator assembly, which has several independent separator cavities, each for passing through a webbing.

[0010] As a further improvement, the webbing separator assembly includes a separator rod and separator plates. The two ends of the separator rod are respectively installed and connected to two fixed plates. There are several separator plates, which are fitted onto the separator rod. The several separator plates are evenly distributed on the separator rod at intervals, and a separator cavity is formed between two adjacent separator plates.

[0011] As a further improvement, the support frame includes uprights and crossbars, with the crossbars mounted to the uprights and the fixing plate mounted to the crossbars.

[0012] As a further improvement, the crossbar is provided with a cavity along its length, which forms a front sidewall and a rear sidewall. A locking block is installed on the fixing plate, and the locking block has a locking groove. The locking groove is engaged with the front sidewall or the rear sidewall of the crossbar. A bolt with a nut is threaded onto the locking block, and the bolt is tightened against the front sidewall or the rear sidewall of the crossbar.

[0013] As a further improvement, the crossbeam has two sections, arranged vertically and connected to the column. The slot opening of the upper crossbeam faces upward, and the slot opening of the lower crossbeam faces downward. The fixing plate is equipped with two locking blocks arranged vertically.

[0014] As a further improvement, the tension adjustment assembly includes a tension block, an adjusting bolt, and a slider. The slider is connected to the adjusting bolt, the adjusting bolt is screwed into the tension block, the upper end of the adjusting bolt is exposed outside the tension block and is equipped with an adjusting cap, and the pressure roller is rotatably connected to the slider.

[0015] This utility model has the following beneficial technical effects:

[0016] Multiple winding mechanisms can be assembled on a single support frame as needed, and each mechanism can be individually controlled to meet the tape tension requirements of different products. The configuration is flexible and it is mainly used in the front area of ​​the webbing machine, which can meet the assembly requirements of various spaces. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a schematic diagram of the winding mechanism of this utility model;

[0019] Figure 3 This is a partial schematic diagram of the crossbar in this utility model.

[0020] Figure label:

[0021] Speed-regulating motor 1, speed regulator 2, pressure roller 3, rubber roller 4, separator plate 5, tension adjustment assembly 6, guide rod 7, webbing 8, winding mechanism 9, cross frame 10, support frame 11, fixing plate 12, clamping block 13, separator rod 14, guide frame 15, clamping groove 16, groove cavity 17. Detailed Implementation

[0022] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0023] In the description of this invention, it should be understood that if terms such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise" are used to 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 the invention 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, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0024] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. 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, and they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0025] Example 1

[0026] like Figure 1-3As shown, a webbing feeding device for a webbing machine includes a support frame with a winding mechanism 9 mounted on it. The winding mechanism 9 includes a fixed plate 12, a drive assembly, a tension adjusting assembly 6, a rubber roller 4, and a pressure roller 3. Two fixed plates 12 are spaced apart and mounted on the support frame. The rubber roller 4 is rotatably connected to both fixed plates 12 at its two ends. The tension adjusting assembly 6 is mounted on the fixed plate 12, and the pressure roller 3 is connected to the tension adjusting assembly 6. The drive assembly, mounted on the fixed plate, drives the rubber roller to rotate. The webbing passes between the rubber roller and the pressure roller. The gap between the rubber roller and the pressure roller can be flexibly adjusted according to the thickness of the webbing to be conveyed. The tension adjusting assembly adjusts the position of the pressure roller to regulate the tension of the conveyed webbing. The drive assembly drives the rubber roller to rotate, thus conveying the webbing.

[0027] The winding mechanism 9 is a functional module that completes the traction and winding of the webbing 8. It forms a rigid support structure through the fixing plate 12 to ensure the positioning accuracy of the rubber roller and the pressure roller. The rubber roller is a rotating roller with a rubber-coated surface; specifically, it can be a steel core covered with a wear-resistant rubber layer, used to contact and pull the webbing. The pressure roller is a cylinder that cooperates with the rubber roller to form a clamping area. The distance between the pressure roller and the pressure roller is adjusted by a tension adjusting component, thereby controlling the clamping force on the webbing.

[0028] Specifically, two fixed plates 12 are mounted parallel to each other on the support frame crossbeam, and the rubber roller 4 is connected to the fixed plates 12 via bearings to achieve free rotation. The drive assembly transmits power to the rubber roller shaft end via a transmission chain or gears, and the rubber roller speed can be adjusted according to the tape output speed of different weaving machines. The tension adjustment assembly moves the pressure roller closer to or further away from the rubber roller, thereby changing the clamping gap through which the webbing passes. When the webbing passes between the rubber roller and the pressure roller, the rotational speed of the rubber roller and the pressure applied by the pressure roller work together to form dynamic tension control that can be adapted to different machines.

[0029] Compared to existing technologies, traditional pre-weaving belt feeding devices use a fixed-speed drive roller, which cannot be adjusted according to the actual belt output speed of each weaving machine. This solution controls the roller speed through an independent drive component and dynamically adjusts the position of the pressure roller using a tension adjustment component. This allows the same device to adapt to the operating parameters of multiple machines, avoiding weaving jams or cross-stretch defects caused by speed differences.

[0030] Through the above technical solution, this application achieves the adaptability of the pre-machine tape feeding device to different tape output speeds on multiple machines, effectively eliminating tape jamming and reversal phenomena, and improving the consistency of product surface quality. At the same time, the centralized structural design reduces redundant equipment configuration, lowering workshop space occupancy and production costs.

[0031] Example 2

[0032] like Figure 1-3 As shown, the drive assembly includes a speed regulator 2 and a speed regulating motor 1. The speed regulator 2 is connected to the speed regulating motor 1, and the drive shaft of the speed regulating motor 1 is connected to the rubber roller 4 through a transmission assembly.

[0033] A speed controller is an electronic device used to control the speed of a motor. It can be implemented using a frequency converter or servo controller, changing the motor speed by adjusting the output frequency or voltage. A speed-regulating motor is a power device with speed regulation capabilities, specifically a three-phase asynchronous motor or a permanent magnet synchronous motor, whose output shaft speed can be dynamically adjusted according to commands. A transmission assembly refers to the mechanical connection structure that transmits power, specifically using pulley sets, gearboxes, or couplings, used to transmit the motor's rotational motion to the rollers.

[0034] Specifically, the speed controller and the speed-regulating motor form a closed-loop control system, driving the rollers to rotate by changing the motor's output speed. When the webbing machine produces webbing of different specifications, the speed controller can adjust the motor speed according to preset parameters, matching the linear speed of the rollers with the actual output speed of the webbing. The transmission assembly transmits the motor's power to the rollers, ensuring precise speed regulation and stable power transmission. For example, when producing thicker webbing, the roller speed can be reduced to avoid excessive tension causing webbing deformation; when producing thinner webbing, the speed is increased to maintain winding efficiency.

[0035] Compared to existing technologies, traditional webbing doffing devices use fixed-speed motors, making it impossible to adjust the winding speed according to the webbing characteristics. This solution, through the coordinated control of a speed controller and a speed-regulating motor, allows the roller speed to match the production speed of different webbing in real time, solving the problems of jamming and rewinding caused by a uniform doffing speed. Compared to configuring a separate speed controller for each webbing machine, this solution reduces equipment modification costs through centralized control.

[0036] Through the above technical solution, this application achieves precise adjustment of the webbing winding speed, effectively avoiding webbing accumulation or stretching deformation caused by differences in output speed. The combined use of the speed-regulating motor and transmission components allows a single device to adapt to the production needs of various webbing types, improving equipment utilization while ensuring winding tension.

[0037] A guide assembly is mounted on the fixed plate 12. The webbing 8 passes between the rubber roller 4 and the pressure roller 3 and is then conveyed along the guide assembly. The guide assembly includes a guide frame 15 and a guide rod 7. The guide frame 15 is connected to the fixed plate 12 by screws, and the guide rod 7 is mounted on the guide frame 15. The guide rod 7 has a smooth surface and may be chrome-plated to reduce friction with the webbing. The webbing is conveyed by passing over the guide rod.

[0038] The guide frame 15 is installed with screws and the fixing plate 12. The angle of the guide frame 15 can be adjusted and then locked. If the direction needs to be readjusted during use, the angle of the guide frame can be easily adjusted by loosening the screws.

[0039] Specifically, the guide frame 15 is symmetrically fixed to the two edge areas of the fixed plate 12 by four screws. The two ends of the guide rod are laterally installed in the U-shaped slots of the guide frame via interference fit or threaded connection. After the webbing passes between the rubber roller and the pressure roller, it enters the subsequent station along the axial extension direction of the guide rod. When it is necessary to adjust the webbing conveying angle, the screws can be loosened to move the guide frame along the length of the fixed plate. After the position is determined, the screws are tightened again to fix it. The guide rod and the webbing contact surface maintain continuous linear contact to prevent lateral displacement or local curling of the webbing in the free section.

[0040] By using guide rod 7, precise guidance control of the webbing conveyor path is achieved, effectively preventing webbing from deviating from the predetermined track and causing overlapping or tangling problems. At the same time, the adjustable guide frame structure simplifies the equipment changeover process and reduces downtime caused by frequent replacement of guide components.

[0041] Additionally, a webbing separator assembly is installed on the fixed plate 12. The webbing separator assembly has several independent separator cavities, each for passing through a single webbing. The webbing separator assembly includes separator rods 14 and separator plates 5. The separator rods 14 are connected to two fixed plates 12 at their ends. Several separator plates 5 are fitted onto the separator rods 14, with the plates evenly spaced on the rods. Separating cavities are formed between adjacent separator plates 5. These cavities ensure that adjacent webbing will not interfere with each other, thus preventing interference with transmission.

[0042] This solution uses the combination structure of the separator rod 14 and the separator plate 5 to form an independent channel, effectively isolating the running trajectory of each webbing and eliminating downtime caused by webbing crossing.

[0043] Through the above technical solution, this application achieves independent and orderly conveying of multiple webbings, enabling each webbing to operate independently and effectively avoiding mutual traction problems caused by speed differences. It also solves the problems of tape jamming and reversal caused by webbing entanglement in traditional front-end tape dropping devices. Furthermore, the adjustable separation structure adapts to the production needs of webbings of different specifications, improving the stability and production efficiency of webbing conveying within a limited space. This prevents multiple webbings from entanglement or friction during conveying, reduces jamming and reversal caused by speed mismatch, and avoids transverse defects on the webbing surface due to uneven stress, thereby improving the forming quality and production stability of the webbing products.

[0044] Example 3

[0045] like Figure 1-3As shown, the support frame includes an upright column 11 and a crossbeam 10. The crossbeam 10 is installed and connected to the upright column 11, and a fixing plate 12 is installed and connected to the crossbeam 10. The crossbeam 10 has a groove 17 along its length, forming a front sidewall and a rear sidewall. A locking block 13 is mounted on the fixing plate 12, and the locking block 13 has a locking groove 16 that engages with the front or rear sidewall of the crossbeam 10. A bolt with a nut is threaded onto the locking block, and the bolt tightens against the front or rear sidewall of the crossbeam. The direct engagement and suspension via the locking block against the sidewall of the groove improves the ease and convenience of assembly. The nut allows for easy rotation of the bolt, facilitating installation and disassembly.

[0046] The system comprises two horizontal supports, arranged vertically and connected to the uprights. The upper horizontal support has its slot opening facing upwards, while the lower horizontal support has its slot opening facing downwards. Two locking blocks are mounted on the fixing plate, one above the other, ensuring assembly stability. The symmetrical support structure formed by the two horizontal supports ensures even force distribution on the fixing plate. Furthermore, the bidirectional locking block design eliminates vibration displacement during equipment operation, preventing overall structural loosening due to single-point fixation failure.

[0047] The crossbeam forms a double-sided support surface through a slotted structure. The locking blocks engage with either side wall of the crossbeam via slots, achieving initial positioning. When adjusting the mounting position of the fixing plate, the bolts can be loosened to allow the locking blocks to slide along the length of the crossbeam. After determining the position, the bolts are tightened so that their ends press against the side wall of the crossbeam, achieving a secure fixation through friction and preload. This structure allows the fixing plate to be installed at any position on either side wall of the crossbeam without requiring additional positioning holes on the crossbeam.

[0048] Compared to existing technologies, traditional front belt unloading devices typically use welded fixing or single-sided bolt connections for their support frames, resulting in difficulties in position adjustment and a limited range of installation directions. This solution utilizes a double-sided adjustable snap-fit ​​structure to achieve stepless adjustment of the fixing plate along the length of the crossbeam, while also supporting forward and reverse installation modes for the upper and lower crossbeams, significantly improving the flexibility of equipment layout.

[0049] Through the above technical solution, this application effectively solves the technical problem of limited equipment installation location when workshop space is limited, enabling the front belt drop device to flexibly adjust the position layout of the winding mechanism according to actual production needs, reducing the equipment footprint while ensuring structural stability, and reducing the risk of structural damage to the cross frame body during installation.

[0050] The tension adjustment assembly includes a tension block, an adjusting bolt, and a slider. The slider is connected to the adjusting bolt, and the adjusting bolt is screwed into the tension block. The upper end of the adjusting bolt is exposed outside the tension block and is equipped with an adjusting cap. The pressure roller is rotatably connected to the slider.

[0051] Tension blocks are support structures used to install adjusting bolts and sliders. They can be implemented using metal blocks with threaded holes. As the mounting base for the adjusting components, they can provide a stable helical motion path for the bolts.

[0052] The adjusting bolt is a threaded component that drives the slider to move through rotation. Specifically, it can be achieved by using a screw with external threads and the tension block with internal threads. By rotating the adjusting cap, the relative position of the slider and the tension block is changed, thereby controlling the pressure of the pressure roller on the webbing.

[0053] The slider refers to the sliding component that is rotatably connected to the pressure roller. Specifically, it can be implemented as a metal block with bearings. Driven by the adjusting bolt, it moves longitudinally along the tension block, causing the pressure roller to move closer to or away from the rubber roller to adjust the tension of the webbing.

[0054] Specifically, when the webbing tension needs to be adjusted, the adjusting cap is rotated to cause the adjusting bolt to move up and down relative to the tension block in a spiral motion. The up-and-down movement of the adjusting bolt pushes the slider to move along the installation direction of the tension block, thereby changing the gap between the pressure roller and the rubber roller. Due to the rotational connection between the pressure roller and the slider, the friction force experienced by the webbing as it passes through the gap between the rubber roller and the pressure roller changes with the gap, thus achieving dynamic tension adjustment.

[0055] Compared with existing technologies, the tension adjustment method of traditional front-end tape feeding devices usually adopts a fixed tape pressing structure, which cannot adjust the pressure according to the differences in the tape. However, this solution can achieve linear fine adjustment of the position of the tape pressing roller through the spiral cooperation structure of bolts and sliders, so that a single device can be adapted to the production needs of tapes of different thicknesses or materials.

[0056] Through the above technical solution, this application solves the problems of jamming, tape reversal and horizontal stripes caused by the non-adjustable tension of traditional front tape drop devices. The tape pressure can be quickly changed by manually rotating the adjusting cap, so that the webbing maintains stable tension during the winding process and avoids quality defects caused by tension fluctuations.

[0057] In this invention, the length of the crossbar on the support frame can be set during assembly. When the length is long enough, multiple winding mechanisms can be installed, each individually controlled to achieve independent control of conveying speed and tension. This allows for flexible expansion and is more economical than traditional unified front-mounted belt drop frames. Furthermore, each machine can be equipped with a set of winding devices, each with its own independent winding motor drive and control. This allows the belt drop tension requirements of different products to be met.

[0058] It should be noted that the above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. However, any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A front-end tape-dropping device for a ribbon weaving machine, comprising a support frame, characterized in that, The support frame is equipped with a winding mechanism, which includes a fixed plate, a drive assembly, a tension adjustment assembly, a rubber roller, and a pressure roller. There are two fixed plates, which are mounted on the support frame at intervals. The two ends of the rubber roller are rotatably connected to the two fixed plates respectively. The tension adjustment assembly is mounted on the fixed plate, and the pressure roller is connected to the tension adjustment assembly. The drive assembly is mounted on the fixed plate to drive the rubber roller to rotate. The webbing passes between the rubber roller and the pressure roller.

2. The ribbon unloading device for a ribbon weaving machine according to claim 1, characterized in that, The drive assembly includes a speed controller and a speed-regulating motor. The speed controller is connected to the speed-regulating motor, and the drive shaft of the speed-regulating motor is connected to a rubber roller through a transmission assembly.

3. The ribbon unloading device for a ribbon weaving machine according to claim 1, characterized in that, The fixed plate is equipped with a guide assembly, and the webbing passes between the rubber roller and the pressure roller and is then conveyed along the guide assembly.

4. The ribbon unloading device for a ribbon weaving machine according to claim 3, characterized in that, The guiding assembly includes a guide frame and a guide rod. The guide frame is connected to the fixing plate by screws, and the guide rod is mounted on the guide frame.

5. The ribbon unloading device for a ribbon weaving machine according to claim 1, characterized in that, The fixing plate is equipped with a webbing separator assembly, which has several independent separator cavities, each for passing through a webbing.

6. The ribbon unloading device for a ribbon weaving machine according to claim 5, characterized in that, The webbing separator assembly includes a separator rod and separator plates. The two ends of the separator rod are respectively installed and connected to two fixed plates. There are several separator plates, which are fitted onto the separator rod. The several separator plates are evenly distributed on the separator rod at intervals, and a separator cavity is formed between two adjacent separator plates.

7. The ribbon unloading device for a ribbon weaving machine according to claim 1, characterized in that, The support frame includes uprights and crossbars, with the crossbars installed and connected to the uprights, and the fixing plate installed and connected to the crossbars.

8. The ribbon dropping device for a ribbon weaving machine according to claim 7, characterized in that, The crossbar has a groove along its length, which forms a front sidewall and a rear sidewall. A locking block is mounted on the fixing plate. The locking block has a locking groove that engages with the front or rear sidewall of the crossbar. A bolt with a nut is threaded onto the locking block and tightens against the front or rear sidewall of the crossbar.

9. The ribbon unloading device for a ribbon weaving machine according to claim 8, characterized in that, The crossbeam has two sections, arranged vertically and connected to the column. The slot opening of the upper crossbeam faces upward, and the slot opening of the lower crossbeam faces downward. The fixing plate is equipped with two locking blocks arranged vertically.

10. The ribbon unloading device for a ribbon weaving machine according to claim 1, characterized in that, The tension adjustment assembly includes a tension block, an adjusting bolt, and a slider. The slider is connected to the adjusting bolt, and the adjusting bolt is screwed into the tension block. The upper end of the adjusting bolt is exposed outside the tension block and is equipped with an adjusting cap. The pressure roller is rotatably connected to the slider.

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