A kind of discharging device

Abstract

The utility model embodiment provides a kind of discharging device, belong to material unwinding technical field, to solve the problem of existing discharging mechanism complex structure, high cost, big adjustment difficulty.The device includes the unwinding assembly and tension assembly being arranged between the material conveying port of processing equipment up and down;Tension assembly is composed of two fixed blocks, slide bar, the slider of being threaded in slide bar and the pulley on the slider, material natural stretching is realized using slider gravity;Unwinding assembly includes mounting bracket, rotary discharging shaft, can cooperate motor to provide initiative unwinding power.This device structure is simple, need not complex sensor and power component, adjustment is convenient, can adapt to different types of coiled flexible long material discharging demand, reduce use and maintenance cost.

Description

Technical Field

[0001] This utility model relates to the field of material unwinding technology, and more specifically, to a material unwinding device. Background Technology

[0002] In the processing of rolled materials, a feeding mechanism (also known as an unwinding mechanism) is usually placed in front to feed the material, thereby ensuring the orderly conveying of the material.

[0003] However, existing feeding mechanisms are complex in structure, especially the tension wheel assembly, which requires a relatively complex mechanism, sensors, and even a power component. This not only results in complex structures but also high costs. Furthermore, adjustments for feeding different materials require specialized technicians; otherwise, insufficient or excessive material stretching may occur. Therefore, this invention proposes a feeding device to at least partially solve the above problems. Utility Model Content

[0004] In view of the above problems, this utility model provides a feeding device that overcomes or at least partially solves the above problems.

[0005] To address the aforementioned problems, this utility model discloses a feeding device for feeding rolled flexible long materials, comprising: An unwinding assembly and a tension assembly are arranged at the top and bottom and located between the material conveying ports of the processing equipment; The tension assembly includes: two fixed blocks arranged at the top and bottom, with a sliding rod between the two fixed blocks; a slider is passed through the sliding rod, and the slider is equipped with a pulley.

[0006] Optionally, two slide bars are arranged in parallel, and the slider is slidably connected to the slide bars via a sliding shaft passing through the slide bars.

[0007] Optionally, the upper fixing block is further provided with a bundle plate, which has two flat material holes. The formed conveying path includes the material passing from the unwinding assembly through one of the material holes, then to the pulley, and then through the other material hole into the material conveying port.

[0008] Optionally, the unwinding assembly includes a mounting frame with a rotatable unwinding shaft.

[0009] Optionally, the feeding shaft is provided with a feeding tray position; a sealing element is provided at the feeding shaft position outside the feeding tray position; The mounting frame is also equipped with a motor, the output end of which is connected to the feeding shaft.

[0010] Optionally, the output end of the motor is connected to the feeding shaft via a coupling.

[0011] Optionally, the mounting bracket is also provided with an edge-sealing component; When the mounting bracket is installed on the processing equipment, the edge banding covers the mounting position of the mounting bracket and the edge position of the processing equipment through which the material passes.

[0012] Optionally, the slider at the lower end of the slider is further fitted with a spring.

[0013] The embodiments of this utility model have the following advantages: The system utilizes an unwinding assembly and a tension assembly positioned vertically between the material conveying ports of the processing equipment. The tension assembly includes two fixed blocks positioned vertically, with a sliding rod between the two blocks. A slider passes through the sliding rod, and the slider is equipped with a pulley. This design eliminates the need for complex sensors, cylinders / motors, and other power components found in existing technologies, achieving basic tension solely through the gravity of the slider, significantly reducing structural complexity and manufacturing costs. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the tension component structure of a feeding device according to an embodiment of the present invention; Figure 2 This is a schematic diagram of the unwinding assembly of a feeding device according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a feeding device provided in an embodiment of the present invention, applied to a processing equipment. Detailed Implementation

[0015] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0016] Reference Figures 1 to 3 In some embodiments of this utility model, a feeding device is used for feeding rolled flexible long materials, including: an unwinding assembly and a tension assembly arranged above and below and located between the material conveying port 302 of the processing equipment 301; the tension assembly includes: two fixed blocks 101 arranged above and below, with a slide rod 102 between the two fixed blocks; a slider 103 passes through the slide rod 102, and the slider is provided with a pulley 105. The slider 103 slides naturally down the slide rod 102 under its own weight, thus naturally stretching the material. Furthermore, by adding appropriate counterweights, such as magnetic weights, to the slider 103, the weight of the slider 103 can be further adjusted to suit different types of materials.

[0017] This application simplifies the tension adjustment structure, eliminating the need for complex sensors, cylinders / motors, and other power components found in existing technologies. Basic tension is achieved solely through the gravity of the slider, significantly reducing structural complexity and manufacturing costs (cost reduction of 30%-50%). Furthermore, it allows for rapid tension adjustment via magnetic weights, eliminating the need for specialized technicians. Operators can adjust the tension independently based on the material type, reducing adjustment time (from 1-2 hours in existing technologies to 1-5 minutes). It can cover various rolled flexible long materials such as thin plastic film, paper rolls, synthetic fiber cloth, and non-woven fabrics, overcoming the limitation of existing devices that require "one adjustment mechanism for one material."

[0018] Furthermore, two parallel slide rods 102 are arranged, and the slider 103 is slidably connected to the slide rods 102 via a sliding shaft 104 passing through the slide rods 102. The two parallel slide rods 102, in conjunction with the sliding shaft 104, limit the radial displacement of the slider (sliding only along the axial direction of the slide rods), avoiding the tension fluctuations caused by the left-right swaying of the slider 103 in the existing single slide rod structure.

[0019] Furthermore, the upper fixing block 101 is also equipped with a bundle plate 106, which has two flat material holes 107. The resulting conveying path includes the material entering the material conveying port from the unwinding assembly through one of the material holes 107, then through the pulley 105, and finally through the other material hole 107. The two flat material holes 107 form a fixed channel of "inlet-pulley-outlet", preventing the material from deviating during conveying (especially for narrow materials, such as 5cm wide label paper). The edges of the material holes 107 can be rounded to prevent the material edges from being scratched by sharp structures, thus improving the material processing quality.

[0020] In some embodiments of this application, the unwinding assembly includes a mounting frame 201, on which a rotatable unwinding shaft 202 is provided for stable support. The rotating unwinding shaft 202 can directly fit onto the roll without the need for a complex clamping mechanism, and one operator can complete the material installation (the prior art requires two people to cooperate in hoisting). The length of the unwinding shaft 202 can be customized according to requirements (such as 1m / 1.5m), and it can adapt to rolled materials with a diameter of 50-300mm, with strong versatility.

[0021] Furthermore, the feeding shaft 202 is provided with a feeding tray position 203; a sealing member 204 is provided at the feeding shaft 202 position outside the feeding tray position 203; the mounting frame 201 is also provided with a motor 205, and the output end of the motor 205 is connected to the feeding shaft 202.

[0022] The aforementioned unloading plate 203 prevents the drum from sliding axially on the unloading shaft, ensuring that the material unloading center is consistent with the center required by the processing equipment; the sealing component 204 can be adjusted according to the drum length to prevent the drum from sliding off the end of the unloading shaft, which is especially suitable for heavy rolled materials (such as metal pipe rolls weighing more than 10kg); the motor drives the unloading shaft to rotate, which solves the problem of unstable tension caused by the passive unloading of heavy drums by material pulling force, and reduces the feeding load of the processing equipment.

[0023] Furthermore, the output end of the motor 205 is connected to the unwinding shaft 202 via a coupling 206. The coupling 206 buffers the impact force when the motor 205 starts / stops, preventing instantaneous speed fluctuations in the unwinding shaft 202 and reducing sudden changes in material tension. Simultaneously, the coupling 206 is detachable; when the motor 205 fails, it is not necessary to disassemble the entire unwinding assembly, only the coupling needs to be removed to replace the motor 205, reducing maintenance time by 50%.

[0024] The mounting frame 201 is also provided with an edge-sealing component 207. When the mounting frame 201 is installed on the processing equipment 301, the edge-sealing component 207 covers the mounting position of the mounting frame 201 and the edge of the processing equipment 301 through which the material passes. The soft edge-sealing component 207 prevents the material (especially thin and brittle materials, such as 0.01mm PET film) from being scratched or snagged by the metal edge of the equipment, reducing the material scrap rate; the edge-sealing component reduces direct friction between the material and the edge of the equipment, preventing edge wear and extending the service life of the equipment.

[0025] The slide rod 102 at the lower end of the slider 103 is also fitted with a spring (not shown in the figure). The spring can prevent the slider 103 from suddenly falling and causing a large impact between the fixed block 101 and the slider 103, thereby generating a large noise, and avoid damaging the equipment due to a large impact force.

[0026] As an example, the unloading device of this utility model is used for unloading rolled flexible long materials (such as paper rolls, plastic films, chemical fiber fabrics, non-woven fabrics, etc.), and is mainly applied in the pre-loading stage of printing, packaging, textile and other processing equipment. Its core structure includes an unwinding assembly and a tension assembly, which are arranged vertically and located between the material conveying port 302 of the processing equipment 301, forming a complete material path of "unwinding-tension adjustment-conveyance to processing equipment".

[0027] The aforementioned tension assembly is the core component for achieving stable adjustment of material tension. Its specific structure is as follows: Figure 1As shown: The structure of the fixing block 101 and the slide bar 102 is as follows: Specifically, the upper and lower fixing blocks 101 are made of metal (such as aluminum alloy) and are fixed to the frame or preset support of the processing equipment 301 by bolts; the two slide bars 102 are arranged in parallel and are made of stainless steel (which has both strength and wear resistance). Their ends are welded or threaded to the upper and lower fixing blocks 101 respectively. The length of the slide bar is set according to the stroke requirements of the slider 103 (usually 20-50cm, to adapt to different tension adjustment ranges).

[0028] The slider 103 is a metal block structure (with through holes inside that fit the slide rods), and is mounted on two slide rods 102 via a slide shaft 104. The slide shaft 104 and the slider 103 are integrally formed, and the outer surface is smoothed (to reduce the coefficient of friction with the slide rods) to ensure that the slider can slide smoothly along the slide rods. The pulley 105 is mounted on the side of the slider 103 via a bearing, and the wheel surface has an arc-shaped groove structure (to adapt to flexible materials and prevent materials from slipping).

[0029] Under normal conditions, the slider 103 slides down the slide bar 102 naturally under its own weight, and the pulley 105 exerts a downward pulling force on the material, thus achieving natural stretching of the material. When adapting to different materials (such as thin plastic film requiring low tension and thick non-woven fabric requiring high tension), a magnetic weight can be added to the slider 103. This weight is a metal block with a permanent magnet (weight can be selected from 50g to 500g). It is fixed to the upper surface of the slider 103 by adsorption by the permanent magnet. No additional fasteners are required, and the adjustment process only takes 1-2 minutes. No professional technicians are required to operate it.

[0030] The unwinding assembly is used to achieve stable unwinding of rolled materials, and its specific structure is as follows: Figure 2 As shown: Mounting frame 201 is a frame-type metal structure, which can be detachably installed on processing equipment 301 or ground support by bolts; the feeding shaft 202 is a cylindrical metal shaft (with rust-proof surface treatment), which is installed on mounting frame 201 at both ends by bearings and can rotate freely around its own axis, used to mount the roll of material. The feeding shaft 202 is provided with an annular protruding feeding disc position 203, which is used to position the roll of material (ensuring that the roll is coaxial with the feeding shaft); the feeding shaft 202 outside the feeding disc position 203 is provided with a sealing part 204 (using elastic retaining ring or threaded retaining ring), which can be adjusted in position along the axial direction of the feeding shaft to prevent the roll of material from falling off the end of the feeding shaft - for example, when installing a roll of paper with a diameter of 30cm, adjusting the distance between the sealing part and the feeding disc position to 30cm can achieve stable positioning of the roll.

[0031] A motor 205 (a stepper motor, the speed of which can be adjusted by an external controller to adapt to different feeding speed requirements) is fixed on the mounting bracket 201. The output end of the motor 205 is connected to the feeding shaft 202 through a coupling 206. The coupling 206 is a flexible coupling (such as rubber material), which can buffer the impact force when the motor starts and avoid instantaneous overload of the feeding shaft. At the same time, the coupling adopts a detachable structure. When the motor fails, only the coupling needs to be removed to replace the motor, making maintenance convenient.

[0032] The mounting frame 201 is also equipped with an edge banding component 207 (made of soft and wear-resistant rubber). When the mounting frame 201 is fixed on the processing equipment 301, the edge banding component 207 will completely cover the connection edge between the mounting frame and the equipment, as well as the edge of the equipment through which the material passes. For example, when conveying thin chemical fiber fabric, it can prevent the fabric from being snagged or scratched by the metal edge of the equipment, and at the same time reduce the wear of the equipment edge.

[0033] Taking "feeding the pipe from the pipe network to the cutting equipment" as an example, the working process of this device is as follows: The roll of the coiled pipe network material is placed on the unloading disc 203 of the unloading shaft 202, and the sealing part 204 is adjusted to fix the roll. At this time, the pipe network is flat. The free end of the pipe network is pulled and passes through the first material hole 107 of the bundle plate 106, around the pulley 105 on the slider 103, and then through the second material hole 107, and finally into the material conveying port 302 of the processing equipment 301. The motor 205 of the processing equipment and the unloading assembly is started. The motor 205 drives the unloading shaft 202 to rotate and unwind, and the pipe network is conveyed along the preset path. During the conveying process, the slider 103 pulls the pipeline downwards due to its own weight (or the weight after adding weights), maintaining stable tension and avoiding redundant feeding of the pipeline (because the pipeline has good elasticity, the length when stretched can be several times, or even more than ten times, the length in the shortened state); the two material holes 107 of the bundle plate 106 limit the pipeline path and prevent it from deviating; if the nylon pipeline is replaced with a metal pipeline, only a 200g magnetic weight needs to be added to the slider 103 to increase the tension and ensure that the metal pipeline is stretched flat.

[0034] Depending on the material type, choose whether to add magnetic weights. The weight can be determined through multiple trial placements (e.g., add 50g for nylon and 300g for metal). The speed of motor 205 can also be adjusted via an external controller to match the unwinding speed with the material requirements of the processing equipment (e.g., when the printing equipment speed is 1m / s, adjust the motor speed to the corresponding unwinding speed). Regularly clean the dust from the surface of the slide bar 102 (to prevent the slide bar from jamming), check the elasticity of the coupling 206 (replace it promptly if it is aged), and clean the debris from the surface of the edge binding 207 (to prevent contamination of the material).

[0035] It should be noted that in this application, the aforementioned magnetic weight can be a cylindrical or square metal block with a permanent magnet. The specific structure can be made of cast iron (ensuring the weight meets the standard), with a galvanized surface for rust prevention. A circular permanent magnet (neodymium iron boron material, with a magnetic force ≥50N) is embedded in the bottom of the weight, and the surface of the permanent magnet is flush with the bottom of the weight. The corresponding slider 103 is made of ferromagnetic metal (such as Q235 steel). The magnetic weight is directly attracted to the upper surface of the slider via the bottom permanent magnet. The attraction force can withstand the weight of the weight itself and the vibration during unloading, requiring no additional fasteners. Disassembly only requires applying an upward pulling force greater than the attraction force to remove it. Along the material conveying direction, the unwinding assembly is located "upstream" of the tension assembly (i.e., the material is first unwound from the unwinding assembly and then enters the tension assembly); along the vertical direction, the unwinding assembly is located "above" the tension assembly. For the motor 205 control, a matching microcontroller (such as an STM32 series) can be used. The controller can be connected to the main control system of the processing equipment via wires to achieve linkage between the unwinding speed and the feeding speed of the processing equipment. Since motor control is a conventional technology, it will not be elaborated here. The aforementioned bundle plate 106 is preferably made of polytetrafluoroethylene (PTFE), which combines wear resistance (friction coefficient ≤0.04) and flexibility, thus avoiding material wear and withstanding long-term use. The bundle plate 106 can be fixed to the upper fixing block 101 with two M5 hex bolts. The aforementioned slide rod 102 is preferably made of 304 stainless steel with a mirror-polished surface.

[0036] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0037] Although preferred embodiments of the present invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention.

[0038] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0039] The above provides a detailed description of the feeding device provided by this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A feeding device for feeding rolled flexible long materials, characterized in that, include: The unwinding assembly and tension assembly are installed at the top and bottom between the material conveying port of the processing equipment; The tension assembly includes: two fixed blocks arranged at the top and bottom, with a sliding rod between the two fixed blocks; a slider is passed through the sliding rod, and the slider is equipped with a pulley.

2. The feeding device according to claim 1, characterized in that, The slide rods are arranged in parallel as two rods, and the slider is slidably connected to the slide rods through a sliding shaft passing through the slide rods.

3. The feeding device according to claim 2, characterized in that, The upper fixed block is also provided with a bundle plate, which has two flat material holes. The formed conveying path includes the material passing from the unwinding assembly through one of the material holes, then to the pulley, and then through the other material hole into the material conveying port.

4. The feeding device according to claim 1, characterized in that, The unwinding assembly includes a mounting frame on which a rotatable unwinding shaft is provided.

5. The feeding device according to claim 4, characterized in that, The feeding shaft is provided with a feeding disc position; a sealing component is provided at the feeding shaft position outside the feeding disc position; The mounting frame is also equipped with a motor, the output end of which is connected to the feeding shaft.

6. The feeding device according to claim 5, characterized in that, The output end of the motor is connected to the feeding shaft via a coupling.

7. The feeding device according to claim 6, characterized in that, The mounting bracket is also equipped with an edge-sealing component; When the mounting bracket is installed on the processing equipment, the edge banding covers the mounting position of the mounting bracket and the edge position of the processing equipment through which the material passes.

8. The feeding device according to claim 1, characterized in that, The slider at the lower end of the slider is also fitted with a spring.

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