Pearl wool film laminating machine

Abstract

The utility model discloses a pearl wool film laminating machine which comprises a machine frame, a material conveying structure, an auxiliary material structure and a hot pressing structure, a material collecting structure used for collecting coated pearl wool is arranged at the rear end of the machine frame, the material collecting structure comprises a material collecting roller, and the hot pressing structure comprises a hot pressing roller. A limiting roller which is used for winding the film-coated pearl wool and limiting and guiding the film-coated pearl wool is arranged on the rack, and the limiting roller is in clearance fit with the material receiving roller and the hot pressing roller to form an opposite-pulling gap through which the film-coated pearl wool passes; the machine frame is provided with contact pieces and loading pieces, wherein the contact pieces are used for being placed in the two opposite-pull gaps respectively and making contact with the surface of the film-coated pearl wool, and the loading pieces are used for being matched with the contact pieces to apply loads to the surface of the film-coated pearl wool through the contact pieces. The utility model solves the problems that the limiting roller in the traditional pearl wool film laminating machine has weak limiting strength and guiding capability on the laminated pearl wool and is difficult to adapt to and limit the laminated pearl wool with different flexibility.

Description

Technical Field

[0001] This utility model relates to the technical field of pearl cotton laminating machines, specifically a pearl cotton laminating machine. Background Technology

[0002] EPE foam, a widely used cushioning material in the packaging industry, often requires lamination to improve its moisture-proof and abrasion-resistant properties. In existing EPE foam lamination processes, the laminating machine plays a crucial role. Traditional EPE foam laminating machines typically consist of a frame, a feeding structure, an auxiliary material structure, and a hot-pressing structure. These components complete the lamination process between the EPE foam raw material and the laminating material. Most laminating machines also have a receiving structure at the rear of the frame to collect the laminated EPE foam products; the receiving roller is a common component in this structure. Meanwhile, the hot-pressing roller in the hot-pressing structure is responsible for tightly bonding the EPE foam and the laminating material together.

[0003] In this process, the limiting roller located between the hot press roller and the take-up roller is responsible for limiting and guiding the coated EPE foam. However, with the development of the industry, existing technologies have gradually revealed many shortcomings. On the one hand, the limiting strength of traditional limiting rollers for coated EPE foam is very limited. During the transmission of coated EPE foam, deviation is prone to occur, resulting in uneven take-up and subsequent manual re-sorting, which is both labor-intensive and affects production efficiency. On the other hand, EPE foam coated products produced by different batches and different processes have significant differences in flexibility. Traditional limiting rollers are difficult to adapt to this diversity. When faced with highly flexible coated EPE foam, they cannot accurately and stably limit its movement, thus affecting the stability and coating quality of the entire coating process. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a pearl cotton laminating machine, which solves the problems of weak limiting strength and guiding ability of the limiting rollers for the laminated pearl cotton in traditional pearl cotton laminating machines, as well as the difficulty in adapting to and limiting laminated pearl cotton with different flexibility.

[0005] To achieve the above objectives, this utility model provides a pearl cotton coating machine, including a frame, a conveying structure for conveying external pearl cotton raw materials, an auxiliary material structure for conveying external coating materials, and a hot pressing structure for coating the pearl cotton raw materials with the coating materials. A receiving structure for collecting coated pearl cotton is provided at the rear end of the frame. The receiving structure includes a receiving roller, and the hot pressing structure includes a hot pressing roller. A limiting roller is provided on the frame for the coated pearl cotton to pass over and for limiting and guiding the coated pearl cotton. The limiting roller is positioned between the receiving roller and the hot pressing roller, and the limiting roller is clearance-fitted with both the receiving roller and the hot pressing roller to form a tension gap for the coated pearl cotton to pass through. The frame is provided with contact members for inserting into the two tension gaps and contacting the surface of the coated pearl cotton, and a loading member for cooperating with the contact members to apply a load to the surface of the coated pearl cotton through the contact members.

[0006] The advantages of adopting the above technical solution are as follows: When the EPE foam coating machine is started, external EPE foam raw materials are stably and continuously conveyed to the coating processing area through the conveying structure. Simultaneously, external coating raw materials, aided by the auxiliary material structure, also move towards this processing area along a predetermined route, preparing the material foundation for subsequent coating processes. When the EPE foam raw materials and coating raw materials converge at the hot-pressing structure, the hot-pressing rollers begin to operate. Through heating and applying a certain pressure, the coating raw materials are tightly adhered to the surface of the EPE foam raw materials, efficiently completing the coating process and forming coated EPE foam. The coated EPE foam is then conveyed forward, bypassing the limiting roller located between the hot-pressing roller and the receiving roller. The gap between the limiting roller, the receiving roller, and the hot-pressing roller creates a tension gap for the coated EPE foam to pass through, initially limiting and guiding the coated EPE foam, ensuring its transmission path is relatively fixed. As the coated EPE foam passes through the tension gap, a contact element is inserted into the gap and comes into contact with the surface of the coated EPE foam. Subsequently, the loading component begins to function, working in conjunction with the contact component to apply a suitable load to the surface of the coated EPE foam. Under the load, the transmission stability of the coated EPE foam is further improved, preventing it from shifting or wrinkling during subsequent take-up processes. After the above treatment, the coated EPE foam is finally conveyed to the take-up roller of the take-up structure. The take-up roller rotates at a uniform speed, neatly winding up the coated EPE foam, completing the entire coating process.

[0007] Based on the above process, by setting limit rollers on the frame and combining them with a unique tension gap design, the coated EPE foam has more precise path constraints during transmission. Compared with traditional EPE foam coating machines, this greatly reduces the risk of deviation, resulting in more neat and orderly material collection. It eliminates the need for frequent manual intervention, improving the level of production automation. The combination of contact and loading components allows for flexible adjustment of the applied load according to the different flexibility of the coated EPE foam. For products with lower flexibility, a smaller load is applied to avoid excessive compression; for products with higher flexibility, the load is increased to enhance the limiting effect. This design breaks through the limitations of traditional limiting rollers, which are difficult to adapt to various flexible products. It improves the compatibility of the laminating machine with EPE foam laminated products produced by different batches and processes, ensuring the stability of lamination quality. Stable transmission and limiting prevent wrinkles, scratches and other defects from appearing on the surface of the laminated EPE foam, resulting in a smoother and more beautiful appearance of the final rolled-up product. The internal lamination is also more tightly bonded, which can better exert the protective performance in subsequent packaging applications. This wins a broader market application prospect for EPE foam laminated products, while reducing waste generation and thus reducing production costs.

[0008] The material conveying structure, auxiliary material structure, hot pressing structure and material receiving structure mentioned above are all existing technologies, so their structures and functions will not be described in detail.

[0009] The present invention further includes: a guide block is provided in the frame corresponding to the position of the limiting roller; guide plates are provided on both sides of the guide block; the two guide plates correspond one-to-one with the two pull-off gaps and the two guide plates are both oriented towards their respective pull-off gaps; the guide plates are inclined relative to the guide blocks; the guide plates are provided with a plurality of pulleys along their length for contacting the surface of the coated pearl cotton, the pulleys being the contact elements; and the length direction of the guide plates is consistent with the length direction of the limiting rollers.

[0010] The advantages of adopting the above technical solution are as follows: Guide blocks are installed at the corresponding limit roller positions on the frame, with guide plates on both sides arranged at an angle. The two guide plates are positioned within corresponding tension gaps, forming a triangular arrangement with the limit rollers. This architecture creates a more refined guiding system for the coated EPE foam. When the coated EPE foam product moves, the guide plates act as precise guide tracks. Compared to a single limit roller, this design constrains the EPE foam's path from more dimensions, making its transmission direction more accurate, effectively reducing deviation, and improving the uniformity of material collection and product quality consistency. Simultaneously, several pulleys are installed along the length of the guide plates as contact components, contacting the surface of the coated EPE foam. Compared to traditional rigid contact guide components, the pulleys transform sliding friction into rolling friction. During the continuous transmission of the coated EPE foam product, rolling friction significantly reduces friction, preventing scratches, wear, and other damage to the coated EPE foam surface due to excessive friction. This ensures the integrity and aesthetics of the product's appearance and maintains its protective performance.

[0011] The present invention further comprises: a groove is provided on the guide plate corresponding to each pulley position, a loading spring is provided in the groove, the pulley includes a slide seat and a wheel body movably disposed on the slide seat, the beginning end of the loading spring is connected to the bottom wall of the groove, and the end end of the loading spring is connected to the top wall of the slide seat.

[0012] The advantages of adopting the above technical solution are: Each pulley on the guide plate is equipped with a loading spring. Through the elastic deformation characteristics of the spring, the contact pressure between the pulley and the coated pearl cotton surface is adaptively adjusted. When encountering coated pearl cotton with uneven thickness or varying flexibility, the reaction force generated by the pearl cotton on the pulley will cause the loading spring to extend and retract accordingly. The pulley will then flexibly adjust its position to ensure a tight fit with the pearl cotton surface, maintaining stable contact pressure. This avoids both insufficient pressure leading to guide failure and excessive pressure damaging the pearl cotton coating. During the operation of the pearl cotton coating machine, some slight vibrations or tension fluctuations are inevitable. The loading spring can act as a buffer and absorb energy. In the event of such emergencies, the spring can absorb excess energy, reducing the impact of vibration on the pulley, guide plate, and the entire guiding system. This reduces the risk of wear and deformation of equipment components due to frequent impacts, extends the equipment's service life, and ensures long-term stable operation. Because different batches of pearl cotton raw materials and coating processes may differ, the resulting coated pearl cotton will also vary in surface smoothness and texture. The pulley system equipped with loading springs can easily cope with these complex and changing working conditions thanks to the elastic compensation mechanism of the springs. This allows the laminating machine to accurately perform its guiding and limiting functions when dealing with various pearl cotton laminating products, thus enhancing the overall adaptability of the equipment to different working conditions.

[0013] The present invention further includes: a limiting shaft is provided on the top wall of the slide block, the loading spring is sleeved on the limiting shaft, and a limiting hole is provided on the bottom wall of the slide groove for partial insertion of the limiting shaft.

[0014] The advantages of adopting the above technical solution are: the limiting shaft on the top wall of the slide block cooperates with the limiting hole on the bottom wall of the slide groove, and the loading spring is sleeved on the limiting shaft. This design ensures that the loading spring maintains precise positioning during the extension and contraction process, avoiding spring displacement or twisting due to factors such as equipment vibration and changes in the tension of the pearl cotton. This ensures that the spring can stably extend and contract along the predetermined axis, stably apply appropriate elastic force to the pulley, maintain the uniformity of contact pressure between the pulley and the surface of the coated pearl cotton, and enhance the guiding and limiting effects.

[0015] The present invention further comprises: an adjustment groove hollowly formed in the guide block; two guide plates movably disposed on the guide block with an adjustment shaft at their starting ends; an adjustment hole corresponding to the position of the adjustment shaft on the guide block; both adjustment holes communicating with the adjustment groove; the two adjustment shafts respectively inserted into their corresponding adjustment holes and coaxially connected with adjustment teeth; the two adjustment teeth meshing with each other; a motor disposed in the adjustment groove; and the output end of the motor coaxially connected with one of the adjustment shafts.

[0016] The advantages of adopting the above technical solution are as follows: An adjustment groove is provided within the guide block, and the guide plate is designed to be movably connected to the guide block via an adjustment shaft and adjustment hole. The adjustment shaft is coaxially connected to intermeshing adjustment teeth. Combined with the motor drive in the adjustment groove, this design allows operators to easily and precisely adjust the distance and angle between the two guide plates. This ensures that the pulley remains in contact with the surface of the coated pearl cotton, thus adapting to different types, sizes, thicknesses, or flexibility of pearl cotton. Simply by operating the motor and utilizing gear meshing, the position of the guide plates can be changed synchronously, quickly adapting to coated pearl cotton of different widths without the need for manual adjustment using complex tools. This greatly improves the convenience and efficiency of equipment adjustment and reduces production preparation time. The intermeshing structure of the two adjustment teeth ensures absolute synchronicity of the two guide plates during adjustment. When the motor drives one adjustment shaft to rotate, due to the gear meshing, the other adjustment shaft will inevitably rotate in the opposite direction by an equal amount, keeping the two guide plates in a symmetrical opening and closing state. At this time, the two guide plates can achieve mutual convergence and opening through the engagement of the adjustment teeth.

[0017] The present invention further includes: a support plate in the frame, and a loading component including a loading cylinder disposed on the support plate. The output end of the loading cylinder passes through the support plate and is connected to the top wall of the guide block. The output end of the loading cylinder is positioned directly above the limiting roller.

[0018] The advantages of adopting the above technical solution are: the loading cylinder is mounted on the support plate of the frame, and its output end precisely passes through the support plate and connects to the top wall of the guide block, located directly above the limiting roller. This layout allows the loading cylinder to apply force vertically and precisely to the guide block, thereby indirectly controlling the contact state between the guide plate and the coated pearl cotton, that is, adjusting the contact force and release state between the pulley and the coated pearl cotton. Through the precise and controllable pushing and pulling force of the loading cylinder, the pressure applied by the guide plate to the pearl cotton through the pulley can be increased as needed according to the different thicknesses and materials of the coated pearl cotton, allowing the pearl cotton to firmly "lock" the predetermined route during transmission, significantly enhancing the stability of limiting and guiding, and reducing problems such as deviation and wrinkles. Different pearl cotton coating processes and raw material characteristics result in differences in product flexibility and thickness. The loading cylinder has the characteristic of flexibly adjusting the stroke and output force. When dealing with various types of coated pearl cotton, operators only need to simply adjust the cylinder parameters to quickly match the corresponding force requirements. Whether it's a thin and soft pearl cotton coated product or a relatively thicker similar product, it can be smoothly transmitted under appropriate pressure, fully meeting diverse and ever-changing production needs and improving the versatility of the equipment. The loading cylinder mentioned above is existing technology, which is used to apply force. Since it is existing technology, its structure and function will not be described in detail. It can be replaced by electric push rods or other devices that can apply loading force, depending on installation and usage requirements. Attached Figure Description

[0019] Figure 1 This is a three-dimensional view of the present invention;

[0020] Figure 2 for Figure 1 Partial 3D view;

[0021] Figure 3 This is a three-dimensional view of the guide block and its linkage structure in this utility model;

[0022] Figure 4 This is a side sectional view of the guide plate in this utility model. Detailed Implementation

[0023] This utility model provides a pearl cotton laminating machine, including a frame 1, a conveying structure for conveying external pearl cotton raw materials, an auxiliary material structure for conveying external laminating materials, and a hot pressing structure for laminating the pearl cotton raw materials and laminating materials. A receiving structure for collecting the laminated pearl cotton is provided at the rear end of the frame 1. The receiving structure includes a receiving roller 11, and the hot pressing structure includes a hot pressing roller 12. A limiting roller 13 is provided on the frame 1 for the laminated pearl cotton to pass over and for limiting and guiding the laminated pearl cotton. The limiting roller 13 is positioned between the receiving roller 11 and the hot pressing roller 12, and the limiting roller 13 is clearance-fitted with both the receiving roller 11 and the hot pressing roller 12 to form a tension gap 131 for the laminated pearl cotton to pass through. The frame 1 is equipped with contact members for inserting into two tension gaps 131 and contacting the surface of the coated pearl cotton, and a loading member for cooperating with the contact members to apply load to the surface of the coated pearl cotton through the contact members. A guide block 2 is provided in the frame 1 at the position corresponding to the limiting roller 13. Guide plates 21 are provided on both side walls of the guide block 2. The two guide plates 21 correspond one-to-one with the two tension gaps 131, and both guide plates 21 are oriented towards their respective tension gaps 131. The guide plates 21 are inclined relative to the guide blocks 2. Several pulleys 23 are provided along the length of the guide plates 21 for contacting the surface of the coated pearl cotton. The pulleys 23 are the contact members. The length direction of the guide plates 21 is parallel to that of the limiting roller. The guide plates 21 are arranged in a consistent length direction, and each guide plate 21 has a groove 221 corresponding to the position of each pulley 23. A loading spring 222 is installed in the groove 221. Each pulley 23 includes a slide seat 231 and a wheel body 232 movably mounted on the slide seat 231. The beginning of the loading spring 222 is connected to the bottom wall of the groove 221, and the end of the loading spring 222 is connected to the top wall of the slide seat 231. A limit shaft 233 is provided on the top wall of the slide seat 231, and the loading spring 222 is sleeved on the limit shaft 233. A limit hole 234 is provided on the bottom wall of the groove 221 for partial insertion of the limit shaft 233. An adjustment groove 24 is hollowly provided in the guide block 2. The two guide plates 21 are movably mounted on the guide block 2 and guide the movement of the pulleys. An adjusting shaft 25 is provided at the beginning of the plate 21. An adjusting hole 241 is provided on the guide block 2 corresponding to the position of the adjusting shaft 25. Both adjusting holes 241 are connected to the adjusting groove 24. The two adjusting shafts 25 are respectively placed into their respective adjusting holes 241 and are coaxially connected to adjusting teeth 251. The two adjusting teeth 251 are meshed with each other. A motor 3 is provided in the adjusting groove 24. The output end of the motor 3 is coaxially connected to one of the adjusting shafts 25. A support plate 4 is provided in the frame 1. The loading component includes a loading cylinder 41 provided on the support plate 4. The output end of the loading cylinder 41 passes through the support plate 4 and is connected to the top wall of the guide block 2. The output end of the loading cylinder 41 is located directly above the limiting roller 13.

[0024] The foregoing has shown and described the basic principles and main features of this utility model, as well as its advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. A pearl wool film coating machine, comprising a rack, a material conveying structure for conveying external pearl wool raw materials, an auxiliary material conveying structure for conveying external film coating raw materials, and a hot pressing structure for coating the pearl wool raw materials with the film coating raw materials, wherein the rear end of the rack is provided with a material collecting structure for collecting the coated pearl wool, the material collecting structure comprises a material collecting roller, and the hot pressing structure comprises a hot pressing roller. The rack is provided with limiting rollers for bypassing and limiting and guiding the coated pearl wool, the limiting rollers are arranged between the material collecting rollers and the hot pressing rollers, and the limiting rollers are gap-fitted with the material collecting rollers and the hot pressing rollers respectively to form a pair of gaps for the coated pearl wool to pass through, the rack is provided with contact pieces for being respectively inserted into the two gaps and contacting the surface of the coated pearl wool, and loading pieces for cooperating with the contact pieces to apply a load to the surface of the coated pearl wool through the contact pieces.

2. The pearl wool film laminating machine according to claim 1, characterized in that: The guiding blocks are provided with guiding plates on both side walls, the two guiding plates correspond to the two gaps respectively, and the two guiding plates are arranged towards the corresponding gaps respectively, the guiding plates are oppositely and obliquely arranged with the guiding blocks, the guiding plates are provided with a plurality of pulleys for contacting the surface of the coated pearl wool along the length direction of the guiding plates, the pulleys are the contact pieces, and the length direction of the guiding plates is consistent with the length direction of the limiting rollers.

3. The pearl wool film laminating machine according to claim 2, characterized in that: The guiding plates are provided with grooves corresponding to each pulley, the grooves are provided with loading springs, and the pulleys include sliding seats and wheel bodies movably arranged on the sliding seats.

4. The pearl wool film laminating machine according to claim 3, characterized in that: The sliding seats are provided with limiting shafts, the loading springs are arranged on the limiting shafts, and the sliding seats are provided with limiting holes for partially arranging the limiting shafts.

5. The pearl wool film laminating machine according to claim 2, characterized in that: The hollow guiding blocks are provided with adjusting grooves, the two guiding plates are movably arranged on the guiding blocks, and the guiding plates are provided with adjusting shafts at the starting ends, the guiding blocks are provided with adjusting holes corresponding to the adjusting shafts, the two adjusting holes are in communication with the adjusting grooves, the two adjusting shafts are arranged in the corresponding adjusting holes respectively and coaxially connected with adjusting teeth, the two adjusting teeth are meshed with each other, and the adjusting grooves are provided with motors coaxially connected with one of the adjusting shafts.

6. The pearl wool film laminating machine according to claim 2, characterized in that: The rack is provided with a supporting plate, the loading pieces include loading cylinders arranged on the supporting plate, the output ends of the loading cylinders pass through the supporting plate and are connected with the top walls of the guiding blocks, and the output ends of the loading cylinders are arranged above the limiting rollers.

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