Film covering equipment

Abstract

The utility model provides film laminating equipment, which belongs to the technical field of film laminating, and comprises a rack, a heating device horizontally arranged on the rack, a film laminating frame positioned below the heating position of the heating device, and at least two groups of counterweight devices uniformly arranged along the circumferential direction of the film laminating frame, each counterweight device comprises a pulley block, a counterweight block and a traction rope, one end of the traction rope is connected with the balancing weight, and the other end of the traction rope bypasses the pulley block and is connected with the film covering frame. The film laminating device solves the technical problems of complex equipment, high energy consumption and high maintenance cost caused by dependence on power devices such as an air cylinder, an oil cylinder or a speed reducer and the like of a film laminating device in the prior art.

Description

Technical Field

[0001] The utility model belongs to the technical field of film covering, and particularly relates to a film covering device. Background Art

[0002] In modern casting processes, the V-method molding is a common binder-free molding method. Its characteristic is that through the action of vacuum, a plastic film on the surface of the mold is adhered, and the shape of the molding sand is maintained by negative pressure to form a casting mold. During the V-method molding process, an EVA film is usually used as the covering film, which is heated to a mirror state and then covered on the surface of the mold. This process includes film covering, coating spraying, and drying of the coating, and these operations usually require multiple independent devices to complete: a film covering device for heating and film covering; a spraying machine for spraying the coating on the surface of the already film-covered mold; and a drying device for baking the coating to a dry state. The combined use of these devices is the basis of the traditional V-method molding process.

[0003] In the existing V-method molding process, although there is a design that combines the film covering device and the drying device, the film covering device in this kind of device usually relies on power devices such as cylinders, oil cylinders, or speed reducers to achieve lifting and film covering operations. These additional power devices not only increase the complexity of the device, but also result in higher energy consumption and maintenance costs. In addition, these combined devices occupy a large space, which is not ideal for workshops with limited space or occasions that require frequent movement and adjustment.

[0004] Therefore, it is necessary to design a film covering device to solve the above problems existing in the prior art. Content of the Utility Model

[0005] Details of one or more embodiments of the present utility model are presented in the following drawings and description to make other features, objectives, and advantages of the present application more concise and understandable.

[0006] The present utility model provides a film covering device, which solves the technical problems in the prior art that the film covering device relies on power devices such as cylinders, oil cylinders, or speed reducers, resulting in complex equipment, high energy consumption, and high maintenance costs, and has the characteristics of simple structure, reduced energy consumption, reduced costs, and improved production efficiency.

[0007] The present utility model discloses a film covering device, including a frame, a heating device horizontally arranged on the frame, a film covering frame arranged below the heating position of the heating device, and at least two groups of counterweight devices evenly arranged circumferentially along the film covering frame. The counterweight device includes a pulley block, a counterweight, and a traction rope. One end of the traction rope is connected to the counterweight, and the other end bypasses the pulley block and is connected to the film covering frame, so that the film covering frame is suspended below the heating position of the heating device through each counterweight device.

[0008] In some of these embodiments, four sets of the counterweight devices are provided and are symmetrically arranged in pairs on both sides of the film covering frame.

[0009] In some of these embodiments, the pulley block includes a first pulley installed on the machine frame and a second pulley installed on the heating device. The installation position of the first pulley is higher than that of the second pulley. The towing rope extends from the film covering frame and successively surrounds the second pulley and the first pulley and is connected to the counterweight block.

[0010] In some of these embodiments, a safety device is connected between the film covering frame and the heating device.

[0011] In some of these embodiments, at least two sets of the safety devices are provided and each of the safety devices is evenly arranged along the circumferential direction of the film covering frame.

[0012] In some of these embodiments, the safety device includes a first connecting member provided on the heating device, a second connecting member provided on the film covering frame, and a connecting rope respectively connected to the first connecting member and the second connecting member.

[0013] In some of these embodiments, the film covering device further includes a flow dividing mechanism for guiding hot air to the surface of the mold. The flow dividing mechanism includes a flow dividing cover covering the heating device and a blower installed on the top of the flow dividing cover.

[0014] In some of these embodiments, two sets of the flow dividing mechanisms are arranged in parallel.

[0015] In some of these embodiments, the machine frame includes four brackets each in an inverted L shape corresponding to the four sets of the counterweight devices. The first pulley is installed on the vertical portion of the bracket, and the free end of the horizontal portion of the bracket is connected to the heating device.

[0016] In some of these embodiments, casters are evenly arranged at the bottom of the machine frame.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1. The utility model discloses a laminating device, which arranges at least two or even more groups of counterweight devices around the laminating frame, and utilizes the gravity of the counterweight block to enable the laminating frame to automatically approach the heating device in a stationary state. The counterweight gravity is used as the power source to replace the cylinder, oil cylinder, reducer, etc. required in the laminating process in the prior art, making the utility model more green and environmentally friendly. On the one hand, it reduces the equipment investment cost and the equipment operation cost, making the laminating operation easier. On the other hand, the traction rope is used to connect the counterweight block and the laminating frame, which can also greatly save installation space, such as saving the installation space of power parts such as the drive device.

[0019] 2. The present invention ensures the stability of the laminating frame during operation by providing a coordinated structure of a pulley assembly, a counterweight, and a traction rope. Guided by the pulley assembly, the counterweight can smoothly drive the laminating frame to move, ensuring that the laminating frame automatically returns to the heating position of the heating device after the operation is completed.

[0020] 3. The safety devices incorporated into this utility model provide additional protection between the laminating frame and the heating device. The provision of these safety devices, particularly at least two evenly distributed groups, not only provides stable support for the equipment during operation but also protects the equipment and operator through features such as automatic locking in the event of an emergency. This multi-layered safety design effectively reduces the risk of equipment failure and improves its reliability and service life.

[0021] 4. The utility model further provides a diversion mechanism to integrate the functions of coating and drying into one device, which occupies a small area and helps save space in the production workshop. At the same time, the integrated design reduces the steps of material transfer between devices, optimizes the layout of the production line, and improves the overall work efficiency and cleanliness of the workshop. The diversion mechanism is used in combination with the heating device to achieve the drying effect, that is, when the coating on the surface of the film is dried, the diversion mechanism and the heating device are started, and the diversion mechanism can effectively divert the hot air generated by the heating device to the coating on the surface of the mold, ensuring that the coating is evenly heated during baking. In particular, by providing two sets of parallel diversion mechanisms, the distribution of hot air is made more uniform, thereby enhancing the adaptability and adjustability of the equipment.

[0022] 5. The structural design of the frame in this utility model further enhances the stability and ease of operation of the equipment. The inverted L-shaped bracket provides more stable force transmission between the counterweight device and the laminating frame. The casters at the bottom of the bracket enhance the mobility and flexibility of the equipment, facilitating its use and adjustment in different working scenarios. The equipment can be manually pushed to the required location as needed, without the need for a vehicle, which is extremely convenient and reduces energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings described herein are used to provide a further understanding of the present utility model, and constitute a part of the present utility model. The illustrative embodiments of the present utility model and their descriptions are used to explain the present utility model, and do not constitute an improper limitation to the present utility model. In the drawings:

[0024] Figure 1 is a schematic structural diagram of a film laminating device provided by an embodiment of the present utility model;

[0025] Figure 2 is a partial cross-sectional view of a film laminating device provided by an embodiment of the present utility model;

[0026] In the above figures: 1 - frame; 101 - caster; 102 - bracket; 2 - heating device; 3 - film laminating frame; 4 - counterweight device; 401 - towing rope; 402 - counterweight block; 403 - pulley block; 4031 - first pulley; 4032 - second pulley; 5 - flow splitting mechanism; 501 - flow splitting cover; 502 - fan; 6 - safety device; 601 - first connecting member; 602 - second connecting member; 603 - connecting rope. Detailed implementation manners

[0027] In order to make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be described and explained below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model. Based on the embodiments provided by the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope protected by the present utility model.

[0028] An embodiment of the present utility model provides a film laminating device, refer to Figures 1 to 2As shown in the figure, the film laminating device at least includes a frame 1, a heating device 2 horizontally arranged on the frame 1, a film laminating frame 3 arranged below the heating position of the heating device 2, and at least two groups of counterweight devices 4 evenly arranged along the circumference of the film laminating frame 3. The counterweight device 4 includes a pulley block 403, a counterweight 402 and a traction rope 401. One end of the traction rope 401 is connected to the counterweight 402, and the other end bypasses the pulley block 403 and is connected to the film laminating frame 3; the film laminating frame 3 is suspended below the heating position of the heating device 2 through each counterweight device 4. The film laminating device of the present invention is provided with a counterweight device 4 composed of a pulley block 403, a traction rope 401 and a counterweight 402. The counterweight device 4 keeps the film laminating frame 3 at the heating position of the heating device 2 in a static state, facilitating the heating operation of the film. This film laminating device uses the counterweight device 4 to replace traditional power devices such as cylinders and oil cylinders, avoiding the use of traditional power devices such as cylinders and oil cylinders, greatly simplifying the structure, reducing energy consumption, and lowering the equipment cost; the position of the film laminating frame 3 is adjusted by its own weight, the operation is convenient, and the whole film laminating device can be made more environmentally friendly; moreover, the overall installation space is reduced, and the overall design is more compact.

[0029] In some embodiments, when film lamination is required, by pressing down on the film laminating frame 3, the traction rope 401 pulls the film laminating frame 3 under the action of the pulley block 403, so that the film laminating frame 3 moves away from the heating device 2 and enters the film lamination position, ensuring the smooth progress of the film lamination work. This operation is simple. At the same time, the design of the counterweight device 4 makes it easy and labor-saving to switch the film laminating frame 3 between the heating position and the film lamination position, suitable for operators to frequently adjust the film position, and can effectively control the change of the film position during the film lamination process. In the present invention, the operator manually applies a downward external force to the film laminating frame 3. The design of manual pressing makes the equipment structure simple, reduces the need for complex machinery or automated control systems, and reduces the manufacturing cost and maintenance cost of the equipment. At the same time, manual operation improves the flexibility of the equipment, is suitable for some small-scale or customized film lamination work, and reduces the energy consumption during the use of the equipment.

[0030] In some embodiments, the total weight of the counterweight 402 can be set slightly heavier than the weight of the film laminating frame 3. In this way, when film lamination is carried out, a relatively small force can be applied to drag the film laminating frame 3 down to the film lamination position to complete the film lamination action. After the film lamination is completed, when the external force is removed, under the action of the self-weight of the counterweight device 4, the film laminating frame 3 rises to the heating position. During the rising process of the film laminating frame 3, the rising speed of the film laminating frame can be manually controlled to make it rise slowly to the heating position, avoiding the impact on the heating device due to the too fast return speed, and thus damaging the heating device. In addition to manually controlling the rising speed of the film laminating frame, an elastic rubber pad can be set at the position of the film laminating frame relative to the heating device to reduce the impact force between the film laminating frame and the heating device. Specifically, the weight of the counterweight 402 can be appropriately adjusted according to the size and weight of the film laminating frame 3 to ensure smooth operation.

[0031] Furthermore, there are four sets of counterweight devices 4, and they are symmetrically arranged in pairs on both sides of the film covering frame 3. By setting the counterweight devices 4 to four sets and evenly distributing them on both sides of the film covering frame 3, it can ensure that the film covering frame 3 is evenly stressed during operation, avoiding the situation of the film covering frame 3 tilting or being unstable. The symmetrical layout of the four sets of counterweight devices 4 not only improves the stability of the equipment, but also ensures that the film covering frame 3 fits more evenly with the heating device 2 during the film covering process, further improving the quality of film heating.

[0032] In some embodiments, the number of counterweight devices 4 can be adjusted according to the specific size or working requirements of the equipment, for example, reduced to two sets or increased to six sets, etc.

[0033] Furthermore, the pulley group 403 includes a first pulley 4031 installed on the frame 1 and a second pulley 4032 installed on the heating device 2. The installation position of the first pulley 4031 is higher than that of the second pulley 4032. The towing rope 401 extends from the film covering frame 3 and successively surrounds the second pulley 4032 and the first pulley 4031 and then is connected to the counterweight 402. By using the first pulley 4031 and the second pulley 4032, the pulling path of the towing rope 401 is optimized, enabling the counterweight 402 to more effectively control the lifting and lowering of the film covering frame 3 through the pulley system. The relatively high position of the first pulley 4031 not only helps to provide a greater traction force to ensure that the counterweight 402 can effectively drive the movement of the film covering frame 3, but also can extend the movement trajectory of the counterweight 402, thereby extending the up and down movement trajectory of the film covering frame 3, enabling the film covering frame 3 to adapt to a larger range of film covering positions.

[0034] Furthermore, a safety device 6 is connected between the film covering frame 3 and the heating device 2. In the present utility model, by setting the safety device 6, it can effectively prevent safety accidents such as the accidental detachment of the film covering frame 3 when the film covering equipment is not working due to the loosening or breakage of the towing rope 401, etc. And setting the safety device 6 can prevent the accidental detachment of the film covering frame 3 through locking and other mechanisms, protecting the safety of operators and equipment.

[0035] In some embodiments, the safety device 6 can adopt various forms, such as a mechanical locking device or an electronically controlled safety lock. According to specific needs, the number of safety devices 6 can also be increased to enhance stability.

[0036] Furthermore, there are at least two sets of safety devices 6, and each safety device 6 is evenly arranged circumferentially along the film covering frame 3. By setting the safety devices 6 to at least two sets and evenly distributing them around the film covering frame 3, the safety of the film covering equipment during operation is further improved.

[0037] Further, the safety device 6 includes a first connecting member 601 disposed on the heating device 2, a second connecting member 602 disposed on the film covering frame 3, and a connecting rope 603 respectively connected to the first connecting member 601 and the second connecting member 602. By providing the connecting members 601 and 602, the safety device 6 forms a flexible protection system. The first connecting member 601 is fixed to the heating device 2, the second connecting member 602 is fixed to the film covering frame 3, and the connecting rope 603 plays a stabilizing and towing role therebetween. When the film covering frame 3 approaches the heating device 2, the connecting rope 603 provides additional support and restraint to prevent the towing rope 401 from breaking or loosening and causing the film covering frame 3 to accidentally disengage.

[0038] In some embodiments, different types of the first connecting member 601, the second connecting member 602, and the connecting rope 603 can be used in different application scenarios. For example, the connecting rope 603 can be replaced by a steel wire rope or a chain, etc. In addition, the structures of the first connecting member 601 and the second connecting member 602 can also be adjusted according to requirements, such as using a snap-type connecting member for quick disassembly and assembly to improve the convenience of maintenance and replacement.

[0039] Further, the film covering device further includes a flow dividing mechanism 5 for guiding hot air to the surface of the mold. The flow dividing mechanism 5 includes a flow dividing cover 501 covering the heating device 2 and a blower 502 installed on the top of the flow dividing cover 501. The flow dividing mechanism 5 realizes the effective guidance of hot air through the combination of the flow dividing cover 501 and the blower 502. Among them, the flow dividing mechanism 5 combined with the heating device 2 plays a drying role. That is, when drying the coating on the surface of the film, the flow dividing mechanism 5 and the heating device 2 are started. The flow dividing mechanism 5 can effectively guide the hot air generated by the heating device 2 to the coating on the surface of the mold, ensuring uniform heating during the baking of the coating. In addition, the flow dividing cover 501 can effectively concentrate heat, reduce heat loss, and thus reduce energy consumption.

[0040] In some actual examples, integrating the fan 502, the shunt cover 501, the heating device 2, and the film covering frame 3 into one body can not only greatly save the occupied space, reduce the equipment cost and operation cost, but also greatly improve the production efficiency. Before film covering, install the film on the film covering frame 3, heat the film through the heating device 2. At this time, turn off the fan 502. After the film is baked to a mirror state, turn off the heating device 2. Apply an external force downward to drive the film covering frame 3 to the surface of the mold. After the film covering is completed, reduce the external force. Under the action of the self-gravity of the counterweight device 4, the film covering frame 3 rises to its original position. After the mold is sprayed with paint, turn on the fan 502, the shunt cover 501, and the heating device 2. The fan 502 evenly distributes the heated air to the surface of the paint through the shunt cover 501, dries the paint and ensures that the paint is evenly heated during baking. After the paint is dried, turn off the heating device 2, the shunt cover 501, and the fan 502. The above series of processes of heating, spraying, film covering, and drying can be completed on only one device, greatly improving the working efficiency.

[0041] Furthermore, two sets of shunt mechanisms 5 are arranged in parallel. By arranging two sets of shunt mechanisms 5 in parallel on the heating device 2, it is possible to achieve a larger area of hot air guiding and covering. The synchronous operation of the two sets of shunt covers 501 and fans 502 can ensure that when the film covering equipment processes molds of larger sizes, the hot air can still be evenly distributed, avoiding the situation where a single shunt cover 501 cannot cover completely. This design increases the flexibility of the film covering equipment, is suitable for the film covering requirements of molds of different sizes, and improves the heating efficiency and drying efficiency. The setting of the two-component shunt mechanism 5 enables the equipment to complete the heating and drying operations more quickly, further improving the production efficiency, especially when dealing with large-scale molds, which is more remarkable.

[0042] In some actual examples, the number of shunt mechanisms 5 can be adjusted according to the size of the mold and the overall heating requirements of the equipment. For example, for smaller molds, only a single-component shunt mechanism 5 can be used, while for larger molds, it can be increased to three or four sets of shunt mechanisms 5. In addition, the shape of the shunt cover 501 can be designed as an adjustable structure to adapt to the contours of different molds.

[0043] Further, the frame 1 includes four inverted L-shaped brackets 102 corresponding to the four sets of counterweight devices 4. The first pulley 4031 is installed on the vertical part of the bracket 102, and the free end of the horizontal part of the bracket 102 is connected to the heating device 2. The inverted L-shaped bracket 102 provides a stable support structure for the counterweight device 4 and the heating device 2. Fixing the first pulley 4031 on the vertical part of the bracket 102 makes the entire counterweight device 4 not occupy the space of the film laminating equipment, and at the same time can leave more operating space for the operator; by using the height difference design of the first pulley 4031 and the second pulley 4032, the counterweight device 4 can more effectively control the lifting and lowering of the film laminating frame 3. The horizontal part of the bracket 102 is connected to the heating device 2 through its free end, thereby ensuring the stability and integrity between the heating device 2 and the frame 1. The design of the inverted L-shaped bracket 102 provides a strong structural support for the film laminating equipment and also ensures the smooth running track of the counterweight device 4. This design not only improves the structural stability of the equipment but also optimizes the space utilization, making the equipment more compact as a whole, which is beneficial to the installation and operation of the equipment.

[0044] The bottom of the frame 1 is evenly provided with casters 102, which facilitate the movement and position adjustment of the entire film laminating equipment. When the equipment needs to be moved, the casters 101 can reduce the physical burden of the operator. At the same time, the casters 101 can be designed with a locking function according to the use environment to ensure the stability of the equipment during operation. The use of the casters 101 improves the flexibility and operability of the equipment, enabling the equipment to adjust its position at any time according to production needs, saving production space and improving work efficiency. Further, the casters 101 are correspondingly arranged at the bottom of the bracket 102.

[0045] The working process of the above-mentioned film laminating equipment is as follows:

[0046] Before film lamination starts, since the total weight of the counterweight device 4 is greater than the weight of the film laminating frame 3, under the action of its own weight, the film laminating frame 3 with the film approaches the heating position of the heating device 2; at this time, the heating device 2 is turned on to heat the film on the film laminating frame 3, and the blower 502 is turned off. After the film is baked to a mirror state, the heating device 2 is turned off, and an external force is applied downward to drive the film laminating frame 3 to descend to the film lamination position away from the heating device 2 to laminate the mold. After the film lamination is completed, the external force is reduced, and under the action of the self-gravity of the counterweight device 4, the film laminating frame 3 rises to its original position; at this time, the coated mold is sprayed. After the coating is sprayed, the heating device 2, the shunt cover 501 and the blower 502 are turned on. The blower 502 evenly distributes the heated air to the surface of the coating through the shunt cover 501 to fully dry it. After the drying is completed, the heating device 2, the shunt cover 501 and the blower 502 are turned off, completing the entire operation process of heating film lamination, spraying and drying.

[0047] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0048] The above-described embodiments only express several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A laminating device, characterized in that: include: frame; A heating device is horizontally arranged on the frame; a laminating frame, located below the heating position of the heating device; At least two sets of counterweight devices are evenly arranged along the circumference of the laminating frame, and the counterweight devices include: A pulley block, a counterweight block and a traction rope, wherein one end of the traction rope is connected to the counterweight block, and the other end passes through the pulley block and is connected to the laminating frame.

2. The laminating device according to claim 1, characterized in that: The counterweight devices are provided in four groups and are symmetrically arranged in pairs on both sides of the film laminating frame.

3. The laminating device according to claim 1 or 2, characterized in that: The pulley group includes a first pulley installed on the frame and a second pulley installed on the heating device. The installation position of the first pulley is higher than the installation position of the second pulley. The traction rope is led out from the coating frame and surrounds the second pulley and the first pulley in turn to be connected to the counterweight block.

4. The laminating device according to claim 1, characterized in that: A safety device is connected between the film laminating frame and the heating device.

5. The laminating device according to claim 4, characterized in that: At least two groups of the safety devices are provided, and the safety devices are evenly arranged along the circumference of the laminating frame.

6. The laminating device according to claim 4 or 5, characterized in that: The safety device includes a first connecting member provided on the heating device, a second connecting member provided on the laminating frame, and connecting ropes respectively connected to the first connecting member and the second connecting member.

7. The laminating device according to claim 1, characterized in that: The laminating equipment further comprises a diversion mechanism for directing hot air to the surface of the mold, wherein the diversion mechanism comprises a diversion hood provided on the heating device and a fan installed on the top of the diversion hood.

8. The laminating device according to claim 7, characterized in that: At least two groups of diversion mechanisms are arranged in parallel.

9. The laminating device according to claim 3, characterized in that: The frame includes four inverted L-shaped brackets corresponding to the four groups of counterweight devices. The first pulley is installed on the vertical part of the bracket, and the free end of the horizontal part of the bracket is connected to the heating device.

10. The laminating device according to claim 1, characterized in that: Casters are evenly arranged on the bottom of the frame.

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