A film releasing device with metering function

Abstract

The utility model discloses a kind of metering function's discharging rack for film releasing equipment, including frame body, metering wheel and two supporting rollers at a distance apart are horizontally rotatably arranged on the frame body, and the center axis of the metering wheel, two supporting rollers three are mutually parallel, the outer peripheral surface of the metering wheel and one of supporting rollers mutually adheres, when this supporting roller rotates, metering wheel is driven synchronous rotation by friction force;The metering wheel is connected with encoder, and the frame body is also equipped with the display screen electrically connected with encoder, for receiving the pulse signal of encoder and showing film release length;The utility model is combined by metering mechanism and discharging rack main body organically, using the design of supporting roller and metering wheel direct friction synchronous transmission, and encoder and display screen are matched to realize the real-time accurate display of film release length.

Description

Technical Field

[0001] This utility model relates to the field of feeding rack technology, specifically a feeding rack with meter counting function for film feeding equipment. Background Technology

[0002] In many industrial fields such as film coating, packaging, and printing, film feeding equipment is the core device for achieving continuous film feeding, and the feeding rack is a key component of the film feeding equipment. Traditional feeding racks do not have a meter-counting function. The measurement of the roll length and the actual feeding length of the film depends entirely on manual measurement using tools such as measuring tapes. This method is not only inefficient and labor-intensive, but also susceptible to errors due to operating techniques and environmental factors, making it difficult to meet the needs of large-scale, high-precision production.

[0003] In the prior art, utility model patent ZL202020250542.5 provides a meter counting device for a film production line, which includes at least one encoder. Specifically, this encoder uses a drive roller as its metering basis, and the encoder is flexibly connected to one side of the drive roller, axially aligned and operating synchronously. This patented solution uses the rotation of the drive roller to drive the encoder to generate pulse signals, thereby achieving the meter counting function. However, this patented solution only provides a basic mechanical transmission meter counting principle and does not provide a systematic structural design and optimization for the actual application scenario of the feeding rack, and therefore cannot be directly applied to the feeding rack of film feeding equipment. Utility Model Content

[0004] This utility model provides a feeding rack with a metering function for film feeding equipment by organically combining the metering mechanism with the feeding rack body.

[0005] This utility model is implemented as follows: A feeding rack with a metering function for film feeding equipment includes a frame body. A metering wheel and two idler rollers spaced a distance apart are horizontally rotatably mounted on the frame body, and the central axes of the metering wheel, the two idler rollers are parallel to each other. The outer circumferential surface of the metering wheel is in contact with one of the idler rollers. When the idler roller rotates, it drives the metering wheel to rotate synchronously through friction. The metering wheel is connected to an encoder. The frame body is also equipped with a display screen electrically connected to the encoder for receiving pulse signals from the encoder and displaying the film feeding length.

[0006] Furthermore, of the two idlers, one idler is fixedly mounted and the other idler is slidably mounted on the frame, and the frame is provided with a spacing adjustment structure for driving the slidable idler closer to or further away from the fixed idler, so as to accommodate film rolls of different diameters.

[0007] Furthermore, the frame is provided with horizontally extending grooves at both ends of the slidable roller, and sliders are slidably arranged in the grooves, with each end of the slidable roller connected to a slider.

[0008] Furthermore, the slide is an open groove structure, and the spacing adjustment structure includes a fixed plate and a first spring. The fixed plate is disposed at the open end of the slide, and the first spring is located between the fixed plate and the slider, and the first spring is always in a compressed state.

[0009] Furthermore, a spring limiting structure is provided on the inner side of the fixing plate, one end of the first spring is connected to the spring limiting structure, and the other end abuts against the slider.

[0010] Furthermore, the spring limiting structure is a limiting post protruding from the inner side of the fixed plate, and the first spring is sleeved on the limiting post.

[0011] Furthermore, the spring limiting structure is a limiting groove provided on the inner surface of the fixed plate, and the end of the first spring is inserted into the limiting groove.

[0012] Furthermore, the slide is an open groove structure, and the spacing adjustment structure includes a fixed plate and an adjusting bolt. The fixed plate is fixedly installed at the open end of the slide, and the adjusting bolt passes through the fixed plate along the extension direction of the slide and is threadedly connected to the fixed plate. The screw of the adjusting bolt abuts against the slider.

[0013] Furthermore, the spacing adjustment structure also includes a second spring, which is disposed in the slide groove and located on the side of the slider away from the adjusting bolt. One end of the second spring abuts against the slider, and the other end abuts against the inner wall of the closed end of the slide groove. The second spring is always in a compressed state, applying an elastic thrust toward the adjusting bolt to the slider.

[0014] Compared with the prior art, the beneficial effects of this utility model are: by organically combining the metering mechanism with the main body of the feeding rack, and adopting the design of direct friction synchronous transmission between the roller and the metering wheel, the present utility model can realize real-time measurement and accurate display of the film feeding length by matching the encoder and the display screen. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention when a membrane roll is placed therein; Figure 2 This is a side view of the present invention with the membrane roll placed inside; Figure 3 This is a cross-sectional view of the present invention when the membrane roll is placed therein; Figure 4 This is a side view of the present invention when the first type of spacing adjustment structure is provided; Figure 5 This is a side view of the present invention when the second type of spacing adjustment structure is provided.

[0016] In the diagram: 1. Frame; 2. Idler roller; 3. Slide groove; 4. Slider; 5. Meter wheel; 6. Fixing plate; 7. Display screen; 8. First spring; 9. Adjusting bolt; 10. Second spring; 11. Membrane roll. Detailed Implementation

[0017] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0018] The following description, in conjunction with the accompanying drawings and specific embodiments, provides further details: Example 1

[0019] like Figure 1 , Figure 2 and Figure 3 As shown, a film feeding device includes a feeding rack with a metering function, comprising a frame 1 and a meter counter. The meter counter includes a metering wheel 5, an encoder, and a display screen 7. The metering wheel 5 and two idler rollers 2 spaced a distance apart are horizontally rotatably mounted on the frame 1, with the central axes of the metering wheel 5 and the two idler rollers 2 parallel to each other. The outer circumferential surface of the metering wheel 5 is in contact with one of the idler rollers 2, so that the metering wheel 5 rotates synchronously through friction when the idler roller 2 rotates. The metering wheel 5 is connected to an encoder, and the frame 1 is also equipped with a display screen 7 electrically connected to the encoder for receiving pulse signals from the encoder and displaying the film feeding length.

[0020] The usage method and working principle of this utility model are as follows: Figure 1 As shown, the film roll 11 is placed on two idler rollers 2. When the film is drawn out from the film roll 11 and pulled by the external traction mechanism, the film drives the idler roller 2, which is in contact with the measuring wheel 5, to rotate. At this time, the idler roller 2 drives the measuring wheel 5 to rotate synchronously through the friction of the outer peripheral surface. The measuring wheel 5 drives the encoder to rotate. The encoder converts the mechanical rotation into a pulse signal and transmits it to the display screen 7. The display screen 7 calculates and displays the length of the film released in real time based on the pulse signal. Example 2

[0021] like Figure 4 As shown, the difference between this embodiment and embodiment 1 is that in embodiment 1, both rollers 2 are fixedly set, while in this embodiment, one roller 2 is fixedly set, and the other roller 2 is slidably set on the frame 1. The frame 1 is provided with a spacing adjustment structure for driving the slidable roller 2 to approach the fixed roller 2, so as to adapt to film rolls 11 of different diameters.

[0022] like Figure 4 As shown, the frame 1 has horizontally extending grooves 3 at both ends of the slidable roller 2. A slider 4 is slidably mounted in each groove 3. The roller 2 uses a roller structure with its own bearings, and each end of the slidable roller 2 is connected to a slider 4. The groove 3 is an open groove structure. The spacing adjustment structure includes a fixed plate 6 and a first spring 8. The fixed plate 6 is located at the open end of the groove 3, and the first spring 8 is located between the fixed plate 6 and the slider 4, and the first spring 8 is always in a compressed state. A spring limiting structure is provided on the inner side of the fixed plate 6. One end of the first spring 8 is connected to the spring limiting structure, and the other end abuts against the slider 4. There are two types of spring limiting structures: one is a limiting post protruding from the inner side of the fixed plate 6, with the first spring 8 sleeved on the limiting post; the other is a limiting groove on the inner surface of the fixed plate 6, with the end of the first spring 8 inserted into the limiting groove.

[0023] By setting up a spacing adjustment structure, when film rolls 11 of different diameters are placed, the slidable roller 2 can slide along the groove 3 away from the fixed roller 2 under the squeezing action of the film roll 11, while compressing the first spring 8. The reverse elastic thrust of the first spring 8 continuously acts on the slider 4, causing the slidable roller 2 to press tightly against the outer circumference of the film roll 11, ensuring that the two rollers 2 always form a stable contact with the film roll 11. No matter how the diameter of the film roll 11 changes, the spacing between the rollers can be dynamically adjusted through the adaptive extension and contraction of the spring, without the need for manual adjustment, thus improving adaptability.

[0024] Meanwhile, the spring limiting structure constrains the extension and retraction direction of the first spring 8 by using limiting post sleeves or limiting grooves, preventing lateral displacement or twisting of the spring when it is under force, ensuring that the elastic force is accurately applied to the sliding direction of the slider 4, and guaranteeing the smooth movement and positioning of the sliding roller 2. This structure retains the accurate meter counting function of Embodiment 1, and expands the applicability of the equipment through adaptive spacing adjustment, improving operational convenience and production efficiency. Example 3

[0025] The difference between this embodiment and Embodiment 2 lies in the specific structure of the spacing adjustment structure. For example... Figure 5 As shown, the slide groove 3 is an open groove structure. The spacing adjustment structure includes a fixed plate 6, an adjusting bolt 9, and a second spring 10. The fixed plate 6 is fixedly installed at the open end of the slide groove 3. The adjusting bolt 9 passes through the fixed plate 6 along the extension direction of the slide groove 3 and is threadedly connected to the fixed plate 6. The screw of the adjusting bolt 9 abuts against the slider 4. The second spring 10 is installed in the slide groove 3 and is located on the side of the slider 4 away from the adjusting bolt 9. One end of the second spring 10 abuts against the slider 4, and the other end abuts against the inner wall of the closed end of the slide groove 3. The second spring 10 is always in a compressed state, applying an elastic thrust toward the adjusting bolt 9 to the slider 4.

[0026] The operating principle of this embodiment is as follows: When changing to a film roll 11 of different diameters, rotating the adjusting bolt 9 causes the slider 4 to slide along the groove 3 via the adjusting bolt 9 or the second spring 10, adjusting the distance between the two rollers 2 to fit the diameter range of the target film roll 11. During the feeding process, the continuous elastic thrust of the second spring 10 keeps the slider 4 in contact with the screw end of the adjusting bolt 9, preventing displacement of the slider 4 due to vibration during equipment operation or slight shaking of the film roll 11, thus ensuring a stable roller spacing.

[0027] In summary, this utility model organically combines the metering mechanism with the main body of the feeding rack, adopts a design of direct friction synchronous transmission between the idler roller 2 and the metering wheel 5, and, with the help of an encoder and a display screen 7, can realize real-time measurement and accurate display of the film feeding length.

[0028] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A feeding rack with meter counting function for a film feeding device, comprising a frame body (1), characterized in that, The frame (1) is horizontally rotatably equipped with a measuring wheel (5) and two idlers (2) spaced a distance apart. The central axes of the measuring wheel (5) and the two idlers (2) are parallel to each other. The measuring wheel (5) is in contact with the outer circumference of one of the idlers (2). When the idler (2) rotates, it drives the measuring wheel (5) to rotate synchronously through friction. The measuring wheel (5) is connected to an encoder. The frame (1) is also equipped with a display screen (7) electrically connected to the encoder, which is used to receive the pulse signal of the encoder and display the length of the film released.

2. The feeding rack with meter counting function for a film feeding device according to claim 1, characterized in that, Of the two rollers (2), one roller (2) is fixedly set and the other roller (2) is slidably set on the frame (1). The frame (1) is provided with a spacing adjustment structure for driving the slidable roller (2) to approach or move away from the fixed roller (2) to accommodate film rolls (11) of different diameters.

3. The feeding rack with meter counting function for a film feeding device according to claim 2, characterized in that, The frame (1) is provided with horizontally extending grooves (3) at both ends of the slidable roller (2). A slider (4) is slidably arranged in the groove (3), and both ends of the slidable roller (2) are respectively connected to a slider (4).

4. A feeding rack with meter counting function for a film feeding device according to claim 3, characterized in that, The slide (3) is an open slot structure. The spacing adjustment structure includes a fixed plate (6) and a first spring (8). The fixed plate (6) is set at the open end of the slide (3). The first spring (8) is located between the fixed plate (6) and the slider (4), and the first spring (8) is always in a compressed state.

5. A feeding rack with meter counting function for a film feeding device according to claim 4, characterized in that, The inner side of the fixed plate (6) is provided with a spring limiting structure. One end of the first spring (8) is connected to the spring limiting structure, and the other end abuts against the slider (4).

6. A feeding rack with meter counting function for a film feeding device according to claim 5, characterized in that, The spring limiting structure is a limiting post protruding from the inside of the fixed plate (6), and the first spring (8) is sleeved on the limiting post.

7. A feeding rack with meter counting function for a film feeding device according to claim 5, characterized in that, The spring limiting structure is a limiting groove set on the inner surface of the fixed plate (6), and the end of the first spring (8) is inserted into the limiting groove.

8. A feeding rack with meter counting function for a film feeding device according to claim 3, characterized in that, The slide (3) is an open groove structure. The spacing adjustment structure includes a fixed plate (6) and an adjusting bolt (9). The fixed plate (6) is fixedly installed at the open end of the slide (3). The adjusting bolt (9) passes through the fixed plate (6) along the extension direction of the slide (3) and is threadedly connected to the fixed plate (6). The screw of the adjusting bolt (9) abuts against the slider (4).

9. A feeding rack with meter counting function for a film feeding device according to claim 8, characterized in that, The spacing adjustment structure also includes a second spring (10), which is disposed in the slide groove (3) and located on the side of the slider (4) away from the adjusting bolt (9). One end of the second spring (10) abuts against the slider (4) and the other end abuts against the inner wall of the closed end of the slide groove (3). The second spring (10) is always in a compressed state, applying an elastic thrust toward the adjusting bolt (9) to the slider (4).

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