A sheath membrane righting device
By introducing a straightening device into the film-covering production line, the elastic metal wire and adjustable limit guide components are used to accurately correct the bottle neck film, solving the problem of misalignment caused by thin, soft, and static electricity in the bottle neck film, thus improving production efficiency and packaging quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOJIAN (BEIJING) BIOTECHNOLOGY CO LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-24
Smart Images
Figure CN224546396U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of product packaging technology. More specifically, it relates to a film-supporting device. Background Technology
[0002] In the current bottling production of health food tablets and capsules, a bottle neck film is commonly added at the bottle opening after filling to enhance the sealing and anti-theft performance of the packaging. However, this bottle neck film is thin, soft, and prone to static electricity, often resulting in misalignment and uneven adhesion during the actual lamination process. This leads to an increased rate of defective shrinkage film and frequent rework. This situation not only increases production costs but also seriously affects the operating efficiency of the entire filling line, making the lamination process a key bottleneck restricting the improvement of production efficiency. Utility Model Content
[0003] The purpose of this utility model is to provide a membrane straightening device to solve at least one of the aforementioned technical problems. To achieve the above objective, this utility model adopts the following technical solution:
[0004] This utility model provides a membrane straightening device, comprising:
[0005] The film-laying mechanism, the straightening mechanism, and the film-applying mechanism are arranged sequentially along the first horizontal direction, as well as the conveying mechanism for conveying the film-to-be-filmed products between the various mechanisms along the first horizontal direction.
[0006] The film-feeding mechanism is used to provide the bottle neck film and place it onto the product to be covered; the straightening mechanism is used to correct the position of the bottle neck film placed on the product to be covered; the film-pressing mechanism is used to press and flatten the bottle neck film after it has been corrected by the straightening mechanism.
[0007] The straightening mechanism includes at least two first straightening components, which are respectively disposed on both sides of the conveying path of the product to be covered along the second horizontal direction; the first straightening components are configured to adjust the position of the bottle mouth film by contacting the bottle mouth film on the product to be covered along the first horizontal direction.
[0008] In a preferred embodiment, the film-coating and straightening device further includes a frame; the film-lowering mechanism, the straightening mechanism, the film-applying mechanism, and the conveying mechanism are all fixed to the frame; the conveying mechanism includes a conveyor belt arranged along a first horizontal direction and a limiting and guiding component for limiting and guiding the products to be coated on the conveyor belt.
[0009] A preferred embodiment is that the limiting and guiding assembly includes two rows of rollers disposed on both sides of the conveyor belt along the second horizontal direction and annular belts respectively fitted on each row of rollers; each row of rollers is arranged along the transmission direction and each roller can rotate on a vertical axis; the opposite sides of the two annular belts contact the product to be coated with film to limit and guide the product to be coated with film during the conveying process.
[0010] In a preferred embodiment, the straightening mechanism further includes a second straightening component positioned at the center directly above the conveyor belt; the second straightening component is tilted to the right along the first horizontal direction; the second straightening component is located downstream of the first straightening component; all the straightening components together form a channel for adjusting the position of the bottle neck film on the product to be coated, through which the product to be coated passes.
[0011] A preferred embodiment is that the straightening mechanism includes multiple sets of straightening components arranged along a first horizontal direction; the straightening components include two first straightening members respectively disposed on both sides of the conveyor belt along a second horizontal direction.
[0012] In a preferred embodiment, the first straightening members all extend along the first horizontal direction and are inclined inward; the two first straightening members in the same group are staggered.
[0013] A preferred embodiment is that the first straightening member is an elastic metal wire; the second straightening member is an elastic metal wire; the elastic metal wire is configured to contact the bottle mouth film to adjust the position of the bottle mouth film on the product to be covered; the contact end of each elastic metal wire used to contact the bottle mouth film is smoothly rounded.
[0014] A preferred embodiment is that the vertical distance between the ends of the two first straightening members in the same group that are used to contact the bottle mouth membrane is less than the height of the bottle mouth membrane in the vertical direction.
[0015] A preferred embodiment is that the film-feeding mechanism includes a film-feeding component for carrying the bottle neck film roll and providing film-feeding power, a central guide post for receiving the film material provided by the film-feeding component and supporting the film material, a cutting component for cutting the continuous bottle neck film on the central guide post to a fixed length, and a film-removing component for removing the cut bottle neck film from the central guide post and placing it on the product to be filmed.
[0016] A preferred embodiment is that the film-pressing mechanism includes a driving member and a horizontally arranged pressing plate connected to the output end of the driving member; the driving member is configured to drive the pressing plate to move in a direction close to or away from the bottle neck film in order to press and flatten the bottle neck film.
[0017] The beneficial effects of this utility model are as follows:
[0018] This invention provides a film-coating straightening device comprising a film-lowering mechanism, a straightening mechanism, and a film-tapping mechanism arranged sequentially along a first horizontal direction, and a conveying mechanism for conveying the product to be coated along the first horizontal direction between the various mechanisms. The film-lowering mechanism conveys the bottle-mouth film and places it onto the product to be coated. The straightening mechanism corrects the position of the bottle-mouth film placed on the product. The film-tapping mechanism flattens the bottle-mouth film after it has been corrected by the straightening mechanism. The straightening mechanism includes at least two first straightening components, which are respectively disposed on both sides of the conveying path of the product to be coated along a second horizontal direction. The first straightening components are configured to correct the position of the bottle-mouth film by contacting it with the bottle-mouth film on the product to be coated conveyed along the first horizontal direction. This invention effectively solves the problem of misalignment of the film due to the thinness, softness, and high static electricity of the bottle-mouth film in the prior art by introducing a straightening mechanism into the film-coating production line. The straightening mechanism can precisely adjust and straighten misaligned bottle neck film after it has been fitted onto the bottle neck, fundamentally eliminating defects such as shrinkage wrinkles and poor sealing caused by film misalignment. This significantly reduces the defect rate and rework rate in the shrink film process, ensuring the integrity and aesthetics of the product packaging, and significantly improving packaging quality and product qualification rate. This film fitting straightening device transforms the film fitting process from a bottleneck restricting the production flow into a smooth process. By replacing traditional manual intervention or frequent machine shutdowns with the straightening mechanism, continuous, stable, and high-speed operation of the production line is achieved, significantly improving the overall production efficiency of the entire filling line, breaking through production bottlenecks, and increasing the overall efficiency of the filling line. Attached Figure Description
[0019] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0021] Figure 2 This is a partial enlarged view of the straightening mechanism of this utility model. Detailed Implementation
[0022] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments do not limit the scope of the present invention.
[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the invention or its application or use.
[0024] Technologies and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such technologies and equipment should be considered part of the specification.
[0025] In all the examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.
[0027] This utility model provides a membrane straightening device, combined with Figures 1 to 2 As shown, the film-forming and straightening device specifically includes: a film-lowering mechanism, a straightening mechanism, and a film-tapping mechanism arranged sequentially along a first horizontal direction, and a conveying mechanism for conveying the product to be film-formed along the first horizontal direction between the various mechanisms; the film-lowering mechanism is used to provide bottle-mouth film and place the bottle-mouth film onto the product to be film-formed; the straightening mechanism is used to correct the position of the bottle-mouth film placed onto the product to be film-formed; the film-tapping mechanism is used to flatten the bottle-mouth film after the position correction by the straightening mechanism; the straightening mechanism includes at least two first straightening members 31, which are respectively disposed on both sides of the conveying path of the product to be film-formed 7 along a second horizontal direction. The first straightening members 31 are configured to contact the bottle-mouth film on the product to be film-formed 7 conveyed along the first horizontal direction, adjust the position of the bottle-mouth film on the bottle mouth, and improve the subsequent film-shrinking success rate and production efficiency by correcting the position of the bottle-mouth film. It should be noted that, referring to Figure 1 and Figure 2 As shown, the first horizontal direction is the X-direction, which is the direction of movement of the conveyor mechanism conveying the product 7 to be sealed. The second horizontal direction is the Y-direction, which is perpendicular to both the first and second horizontal directions. The vertical direction is the Z-direction, which is perpendicular to both the first and second horizontal directions. The product 7 to be sealed can specifically be a bottle used to hold health food tablets and capsules, or other bottles that require sealing. After the health food tablets or capsules are filled into the bottle, they are conveyed to the sealing station by the conveyor mechanism. The lowering film mechanism at the sealing station begins to work, fitting the sealing film onto the bottle opening. However, due to static electricity or other reasons, the fitted sealing film may not be straight. As the bottle continues to move under the conveyor mechanism, when it passes the straightening mechanism at the straightening station, the straightening mechanism adjusts the position of the sealing film, thus ensuring the effect after shrinking and reducing the shrinkage defect rate.
[0028] In one specific embodiment, the film-coating and straightening device further includes a frame 1; the film-feeding mechanism, straightening mechanism, film-applying mechanism, and conveying mechanism are all fixed to the frame 1; the conveying mechanism includes a conveyor belt 51 arranged along a first horizontal direction and a limiting and guiding component 52 for limiting and guiding the product 7 to be coated on the conveyor belt 51. The film-feeding mechanism, straightening mechanism, and film-applying mechanism are arranged sequentially along the conveying direction of the conveyor belt 51. During operation, the bottle is carried by the conveyor belt 51 and straightened by the limiting and guiding component 52 before passing through the above-mentioned mechanisms in sequence, thereby completing the film-coating, straightening, and flattening operations of the bottle neck in sequence.
[0029] Furthermore, the limiting and guiding assembly 52 includes two rows of rollers disposed on both sides of the conveyor belt 51 along the second horizontal direction, and annular belts respectively fitted onto each row of rollers; each row of rollers is arranged along the conveying direction of the conveyor belt, i.e., the first horizontal direction, and each roller can rotate around a vertical axis. The opposite sides of the two annular belts contact the product 7 to be coated, so as to limit and guide the product 7 to be coated during the conveying process. During operation, the bottle moves forward under the drive of the conveyor belt 51, and its two sides make contact friction with the inner side of the annular belt. Since the rollers can rotate freely, the annular belt moves accordingly, thereby forming a flexible and dynamic limiting and guiding for the bottle, ensuring that the bottle maintains a precise trajectory and orientation when entering subsequent coating, straightening and other work stations. The advantage of this setting is that, compared with the traditional fixed rigid baffle, this design transforms sliding friction into rolling friction through rotatable rollers and annular belts, realizing dynamic, low-resistance flexible guidance, and greatly reducing the forward resistance of the bottle during the conveying process. This flexible contact avoids damage to the bottle label or bottle body caused by rigid scratching, making it particularly suitable for products with high appearance requirements. The annular belt provides continuous and uniform lateral restraint force to the bottles along the entire conveying path, effectively preventing deflection, jumping, or jamming during transport, ensuring guiding accuracy and stability, and ensuring that the bottles enter the filming and straightening station in a stable and correct posture—the foundation for successful subsequent processes. The spacing between the two rows of rollers can be designed to be adjustable; by adjusting the spacing, the channel width between the two annular belts can be changed, thus quickly adapting to bottle shapes of different diameters, enhancing the equipment's versatility and changeover efficiency. The structure is simple and compact, and its operation is reliable. The annular belt, as a wear component, is easy to replace after wear, resulting in low maintenance costs and ensuring continuous production. Specifically, mounting plates 521, located on both sides of the conveyor belt 51 along the Y direction and arranged along the X direction, are fixed on the frame 1. The rollers are rotatably mounted on the two mounting plates 521, and the mounting plates 521 do not contact the bottles. The assembly plate 521 is adjustablely mounted on the frame, and the channel width between the two annular belts can be adjusted by adjusting the distance between the two assembly plates 521 in the Y direction.
[0030] In one specific embodiment, the straightening mechanism further includes a second straightening member 32 positioned directly above the center of the conveyor belt 51. The second straightening member 32 is fixed to the frame 1 via a fitting 33 and positioned above the conveyor belt 51. Along the first horizontal direction, the second straightening member 32 is tilted to the right; the second straightening member 32 is located downstream of the first straightening member 31. The bottle passes through the first straightening member 31 first and then the second straightening member 32. All the straightening members together form a channel for adjusting and correcting the position of the bottle neck film on the product to be coated. When a bottle with a skewed bottle neck film passes under the second straightening member 32, the tilted second straightening member 32 will preferentially contact the higher side of the bottle neck film and apply a downward corrective force to the bottle neck film. This force guides the bottle neck film to overcome the influence of static electricity and other factors, moving it to the preset correct position, thereby achieving precise and gentle automatic straightening of the bottle the instant it passes through the channel. By adding a second straightening component 32 located above, which works in conjunction with the first straightening component 31, a complete correction channel is formed. This channel can simultaneously constrain and correct both the vertical tilting and horizontal displacement of the bottle neck film, providing a more comprehensive correction. The aforementioned straightening mechanism exhibits stronger adaptability and correction capabilities for situations where the bottle neck film simultaneously exhibits horizontal and vertical displacement or skew, thus improving the stability and reliability of the entire straightening process.
[0031] In one specific embodiment, the straightening mechanism includes multiple sets of straightening components arranged along a first horizontal direction; each straightening component includes two first straightening members 31 respectively disposed on both sides of the conveyor belt 51 along a second horizontal direction. By simultaneously setting multiple sets of straightening components, the bottle cap film with skewed conditions can be corrected in the horizontal direction by multiple sets of straightening components, further improving the success rate of bottle cap film straightening. Adjacent first straightening members 31 located on the same side of the conveyor belt are configured to correspond to the upper and lower parts of the same side of the bottle cap film in terms of height, and two first straightening members 31 of the same set of straightening components are configured to correspond to the upper and lower parts of different sides (i.e., opposite sides) of the bottle cap film in terms of height. This arrangement enables the straightening components to apply synergistic corrective forces to the bottle cap film from different heights and positions, achieving three-dimensional and comprehensive straightening of the bottle cap film.
[0032] Furthermore, each of the first straightening components 31 extends along the first horizontal direction and tilts inward to contact the bottle neck film; the two first straightening components 31 in the same group are staggered. This staggered arrangement of the two first straightening components 31 in the same group ensures that different parts of the same bottle neck film are subjected to corrective forces from both sides sequentially and alternately when passing through this group of straightening components. After the first component contacts and begins correction, the staggered second component applies force again from a different position, distributing the concentrated corrective force to two different contact points and time points, making the correction action gentler and effectively reducing the risk of bottle jamming or damage to the bottle neck film.
[0033] In one specific embodiment, the first straightening member 31 is an elastic metal wire; the second straightening member 32 is an elastic metal wire. The elastic metal wire is configured to contact the bottle cap film to adjust the position of the bottle cap film on the product 7 to be sealed. The contact end of each elastic metal wire is rounded to avoid scratching the sealing film. During the installation and adjustment phase, when a force exceeding its elastic limit is applied, the elastic metal wire can undergo plastic deformation, thereby being precisely bent to the required shape and angle to fit bottles of different sizes. Under normal operating conditions, the contact force with the bottle cap film is much less than its elastic limit; the metal wire only undergoes elastic deformation and can immediately return to its original shape after contact, ensuring a continuous and stable straightening effect. The elastic metal wire has good elasticity and moderate plasticity; for example, steel wire can be selected. Using steel wire ensures that it can be manually bent (undergoing plastic deformation) to fit bottles of different diameters, while during normal contact with the bottle cap film, only elastic deformation occurs and it can instantly return to its original shape, thereby ensuring a lasting straightening effect. This quick-adjustable design greatly enhances the equipment's applicability, reduces modification time and costs required for product changes, and enables rapid production changeovers. The device can be integrated into existing filling lines. Its rational structural design eliminates the need for complex additional operations, reliably straightening the bottle neck film, reducing operational difficulty and reliance on operators, and ensuring long-term operational stability. Specifically, the assembly plate 521 has several mounting posts 522 extending upwards from its top surface. One end of an elastic metal wire is fixed to the mounting post 522, while the other end engages with the bottle neck film by tilting inwards. The spacing of the first straightening components 31 in the same group can also be adjusted by adjusting the spacing between the two assembly plates 521.
[0034] Furthermore, the vertical distance between the ends of the two first straightening members 31 in the same group that are in contact with the bottle neck membrane is less than the height of the bottle neck membrane in the vertical direction. By staggering the ends of the two first straightening members 31 in the same group in the vertical direction and making their distance less than the membrane height, different points of the bottle neck membrane in the vertical direction can be effectively contacted by the two ends at different heights and a corrective force can be applied, thereby improving the straightening effect.
[0035] In one specific embodiment, the film-laying mechanism includes a film-feeding component 21 for carrying the bottle-mouth film roll and providing power for film laying; a central guide post 22 for receiving the film material provided by the film-feeding component 21 and supporting the film material; a cutting component for cutting the continuous bottle-mouth film on the central guide post 22 to a fixed length; and a film-removing component for removing the cut bottle-mouth film from the central guide post 22 and placing it onto the product 7 to be covered with film. During operation, the film-feeding component 21 first carries the bottle-mouth film roll and provides power for film laying, and the film material is then guided and expanded by the central guide post 22. Subsequently, the cutting component cuts the continuous film material to a fixed length. Finally, the film-removing component removes the cut bottle-mouth film from the central guide post 22 and places it onto the product 7 to be covered with film. The film-laying mechanism is responsible for completing the entire automated process from film roll feeding, fixed-length conveying, precise cutting to final film covering. More specifically, the film-feeding component 21, as the power and material source, mainly includes a film roll mounting shaft and a drive assembly. The film roll mounting shaft is used to hold the bottle neck film roll; the drive assembly consists of two sets of synchronous servo motors, which can provide precise film-feeding power to achieve fixed-length, intermittent conveying of the film material. The film material pulled out by the film supply component 21 enters the central guide post 22. The central guide post 22 is a vertically arranged columnar component, the outer diameter of which is adapted to the inner diameter of the bottle neck film. The film material is guided and fitted onto the outside of the central guide post 22, which serves to expand, tension, and guide the film material, ensuring that the film material remains flat and accurately positioned before cutting. When the film material is pulled down to the set length, the cutting component actuates. This cutting component consists of a high-speed rotating cutting disc or a cylinder-driven cutter, which is precisely positioned at a specific lower end of the central guide post 22. The cutting component can cut the continuous film material on the central guide post 22 to obtain a fixed-length bottle neck film sheet. After cutting, the film removal component immediately actuates. The film removal component consists of one or more brush-down conveyor wheels that can move synchronously in opposite directions or downwards. The brushing conveyor roller acts on the side of the cut diaphragm, and through the pressure rolling, the diaphragm is quickly separated from the central guide post 22 and placed on the bottle mouth of the bottle brought by the conveyor belt 51 directly below.
[0036] In one specific embodiment, the film-pressing mechanism includes a drive member 41 and a horizontally arranged pressing plate 42 connected to the output end of the drive member 41. The drive member 41 is configured to drive the pressing plate 42 to move in a direction close to or away from the bottle neck film to press and flatten the bottle neck film. The film-pressing mechanism is located downstream of the straightening mechanism and is used to perform final flattening of the straightened bottle neck film to ensure a tight fit with the bottle neck. Further, the film-pressing mechanism mainly includes a drive member 41, a transmission assembly, and a pressing plate 42. Specifically, the drive member 41, as a power source, can be a servo motor, which is connected to the pressing plate 42 through the transmission assembly. The pressing plate 42 is horizontally arranged, and its working surface is a flat plate structure. During operation, the drive member 41 is configured to drive the pressing plate 42 to reciprocate in a vertical direction (i.e., in a direction close to or away from the bottle neck film). When the bottle is transported to the film-pressing station, the pressing plate 42 moves downward to apply a downward pressure to the bottle neck film. This action completely smooths out any tiny wrinkles that may exist after the bottle cap film is straightened, and removes air from under the film, making the film adhere more tightly and firmly to the edge of the bottle opening, thereby further enhancing the sealing of the packaging. Specifically, the drive unit 31 is a horizontally mounted motor. This transmission assembly is configured to convert the horizontal rotational motion of the motor output shaft into the vertical linear reciprocating motion of the plate 32. The transmission assembly can be any one of a cam mechanism, a crank-slider mechanism, or a rack and pinion mechanism.
[0037] The film-coating and straightening device also includes a detection mechanism 61 located upstream of the film-laying mechanism. This detection mechanism 61 includes a photoelectric sensor, which is fixed to the frame by a mounting component and positioned above the conveyor path of the product 7 to be coated, sensing the position of the product 7 on the conveyor belt 51. When the bottle enters the detection area with the conveyor belt 51, the photoelectric sensor is triggered, sending a film-laying signal to the film-laying mechanism, thus ensuring that the film-coating action at the bottle neck is synchronized with the bottle's conveying position. Furthermore, the detection mechanism 61 is installed before the film-laying mechanism, and the two annular belts of the limiting guide assembly 52 are respectively installed on both sides of the conveyor belt 51 along the Y direction. The straightening mechanism is installed after the film-laying mechanism and before the film-applying mechanism. Adjusting the spacing between the two annular belts of the limiting guide assembly 52 and simultaneously adjusting the position of the straightening component of the straightening mechanism 5 can meet the needs of different bottle sizes. This achieves automatic straightening of the bottle neck film, reducing shrinkage defects and rework after shrinkage in the heat shrink oven, and improving production efficiency.
[0038] Combination Figure 1 and Figure 2As shown, taking the straightening mechanism including two sets of straightening components and a second straightening component as an example, the specific working process of this utility model is as follows: The bottle is transported by the conveyor belt 7 and the limiting guide component 52 ensures that the bottle does not shake when moving with the conveyor belt and that the center of the bottle is aligned with the center guide post. After the detection mechanism detects the incoming bottle, it sends a signal to the film-laying mechanism. The dual sets of synchronous servo motors of the film-laying mechanism drive the bottle mouth film to move down a set distance along the center guide post. The cutting disc rotates the blades to cut the bottle mouth film. The two sets of brush-down conveyor wheels make the cut bottle mouth film detach from the center guide post 22 and fit into the bottle mouth. Because the bottle mouth film is made of PVC and other plastic materials and is thin, it is prone to static electricity, deformation and rebound. The rotation of the conveyor belt, the movement of the film-laying mechanism, and the rotation of the brush-down wheels will all drive the air flow and disturb the position of the bottle mouth film. Due to static electricity, wind speed, equipment accuracy, improper debugging and other reasons, the bottle mouth film fitted into the bottle is not straight. After shrinking in the heat shrink oven, poor shrinkage and rework will occur, reducing production efficiency. When the bottle neck film, once inserted into the bottle, passes the straightening mechanism, the two first straightening components 311 and 312 of the first set of straightening components (near the detection mechanism) lightly touch the upper left and lower right sides of the bottle neck film, causing the film to adjust left and right. The two first straightening components 313 and 314 of the second set of straightening components (near the film-tapping mechanism) lightly touch the lower left and upper right sides of the bottle neck film, causing it to adjust left and right again. The second straightening component 32 lightly touches the top of the bottle neck film, causing it to adjust forward and backward. Through these straightening mechanisms, the bottle neck film is automatically adjusted and straightened. Then, the label-tapping mechanism taps the bottle neck film up and down to press it into position. Further, the straightening mechanism requires the following pre-use debugging steps: Prepare the sample bottle and tighten the bottle cap. Turn on the film-lowering mechanism and conveyor belt 51, adjust the spacing of the limiting guide components according to the bottle size, and align the center of the bottle with the center guide post 22 to ensure the bottle does not wobble during transport. The straightening mechanism is adjusted so that the two first straightening components 311 and 312 of the first set of straightening components lightly touch the upper left and lower right sides of the bottle neck film; the two first straightening components 313 and 314 of the second set of straightening components lightly touch the lower left and upper right sides of the bottle neck film, and the second straightening component 32 lightly touches the top of the bottle neck film. Simulated testing shows that the sample bottle can be successfully fitted with film 10 times consecutively through the straightening mechanism. During production, the relative position of the ends of the straightening components and the bottle neck film can be adjusted promptly based on the film fitting success rate. This film fitting straightening device can improve the film fitting success rate, significantly reduce the shrinkage defect rate and rework rate, thereby improving production efficiency.
[0039] In summary, this utility model provides a film-coating straightening device, comprising a film-lowering mechanism, a straightening mechanism, and a film-tapping mechanism arranged sequentially along a first horizontal direction, and a conveying mechanism for conveying the product to be coated along the first horizontal direction between the various mechanisms; the film-lowering mechanism is used to convey bottle-mouth film and place the bottle-mouth film onto the product to be coated; the straightening mechanism is used to correct the position of the bottle-mouth film placed on the product to be coated; the film-tapping mechanism is used to flatten the bottle-mouth film after the position correction by the straightening mechanism; the straightening mechanism includes at least two first straightening components, which are respectively disposed on both sides of the conveying path of the product to be coated along a second horizontal direction; the first straightening components are configured to adjust the position of the bottle-mouth film by contacting it on the product to be coated conveyed along the first horizontal direction to achieve position correction of the bottle-mouth film. This utility model effectively solves the problem of misalignment of the film due to the thinness, softness, and high static electricity of the bottle-mouth film in the prior art by introducing a straightening mechanism into the film-coating production line. The straightening mechanism can precisely adjust and straighten misaligned bottle neck film after it has been fitted onto the bottle neck, fundamentally eliminating defects such as shrinkage wrinkles and poor sealing caused by film misalignment. This significantly reduces the defect rate and rework rate in the shrink film process, ensuring the integrity and aesthetics of the product packaging, and significantly improving packaging quality and product qualification rate. This film fitting straightening device transforms the film fitting process from a bottleneck restricting the production flow into a smooth process. By replacing traditional manual intervention or frequent machine shutdowns with the straightening mechanism, continuous, stable, and high-speed operation of the production line is achieved, significantly improving the overall production efficiency of the entire filling line, breaking through production bottlenecks, and increasing the overall efficiency of the filling line.
[0040] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. All obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A membrane straightening device, characterized in that, include: The film-laying mechanism, the straightening mechanism, and the film-applying mechanism are arranged sequentially along the first horizontal direction, as well as the conveying mechanism for conveying the film-to-be-filmed products between the various mechanisms along the first horizontal direction. The film-feeding mechanism is used to provide the bottle neck film and place it onto the product to be covered; the straightening mechanism is used to correct the position of the bottle neck film placed on the product to be covered; the film-pressing mechanism is used to press and flatten the bottle neck film after it has been corrected by the straightening mechanism. The straightening mechanism includes at least two first straightening components, which are respectively disposed on both sides of the conveying path of the product to be covered along the second horizontal direction; the first straightening components are configured to adjust the position of the bottle mouth film by contacting the bottle mouth film on the product to be covered along the first horizontal direction.
2. The membrane straightening device according to claim 1, characterized in that, The film-coating and straightening device also includes a frame; the film-lowering mechanism, the straightening mechanism, the film-applying mechanism, and the conveying mechanism are all fixed to the frame; the conveying mechanism includes a conveyor belt arranged along a first horizontal direction and a limiting and guiding component for limiting and guiding the products to be coated on the conveyor belt.
3. The membrane straightening device according to claim 2, characterized in that, The limiting and guiding assembly includes two rows of rollers disposed on both sides of the conveyor belt along the second horizontal direction and annular belts respectively fitted on each row of rollers; each row of rollers is arranged along the transmission direction and each roller can rotate on a vertical axis; the opposite sides of the two annular belts contact the product to be coated with film to limit and guide the product to be coated with film during the conveying process.
4. The membrane straightening device according to claim 2, characterized in that, The straightening mechanism further includes a second straightening component located at the center of the top of the conveyor belt; the second straightening component is tilted to the right along the first horizontal direction; the second straightening component is located downstream of the first straightening component; all the straightening components together form a channel for adjusting the position of the bottle cap film on the product to be coated, through which the product to be coated passes.
5. The membrane straightening device according to claim 2, characterized in that, The straightening mechanism includes multiple sets of straightening components arranged along a first horizontal direction; each straightening component includes two first straightening members respectively disposed on both sides of the conveyor belt along a second horizontal direction.
6. The membrane straightening device according to claim 5, characterized in that, The first straightening components all extend along the first horizontal direction and are inclined inward; the two first straightening components in the same group are staggered.
7. The membrane straightening device according to claim 4, characterized in that, The first straightening component is an elastic metal wire; the second straightening component is an elastic metal wire; the elastic metal wire is configured to contact the bottle mouth film to adjust the position of the bottle mouth film on the product to be covered; the contact end of each elastic metal wire used to contact the bottle mouth film is smoothly rounded.
8. The membrane straightening device according to claim 5, characterized in that, The vertical distance between the ends of the two first straightening members in the same group that are used to contact the bottle mouth membrane is less than the height of the bottle mouth membrane in the vertical direction.
9. The membrane straightening device according to claim 1, characterized in that, The film-laying mechanism includes a film-feeding component for carrying the bottle neck film roll and providing film-laying power, a central guide post for receiving the film material provided by the film-feeding component and supporting the film material, a cutting component for cutting the continuous bottle neck film on the central guide post to a fixed length, and a film-removing component for removing the cut bottle neck film from the central guide post and placing it on the product to be filmed.
10. The membrane straightening device according to claim 1, characterized in that, The film-pressing mechanism includes a driving component and a horizontally arranged pressing plate connected to the output end of the driving component; the driving component is configured to drive the pressing plate to move in a direction close to or away from the bottle neck film in order to press and flatten the bottle neck film.