A large width composite film efficient curing chamber

Abstract

The utility model relates to medical packaging film production technical field discloses a kind of big wide composite film high-efficiency curing chamber, including box, two winding rollers and two side plates, the inside of the box is provided with action mechanism, the action mechanism includes two winding rollers, four reset springs and four cables, the upper end and the cavity of lower end of the upper end of one side front end in the box are uniformly provided with first servo motor, the output shaft of first servo motor is all through box and is fixedly connected with winding roller, the middle part of winding roller outer wall is all equipped with heat preservation curtain, the both sides of the upper end and the lower end of the box are fixedly connected with fixed block, the inside of fixed block is all set with sliding slot. In the utility model, winding roller is driven to the heat preservation curtain by first servo motor in action mechanism and is operated to be received or be put, cooperation reset spring applies tension to sliding block and straightens the heat preservation curtain by cable, can be shielded and heat preservation to the box opening portion using heat preservation curtain.

Description

Technical Field

[0001] This utility model relates to the field of medical packaging film production technology, and in particular to a high-efficiency curing chamber for large-width composite films. Background Technology

[0002] Wide-width composite films refer to multilayer films with a large width, composed of two or more materials. They are commonly used in the medical field for packaging pharmaceuticals and medical devices. They typically possess excellent barrier properties such as moisture resistance, oxidation resistance, and bacterial inhibition. The high-efficiency curing chamber for wide-width composite films, also known as a curing chamber or drying room, controls the heating temperature and time to allow the polyurethane and other adhesives between the composite film layers to fully cross-link and achieve optimal composite strength. At the same time, it removes residual solvents such as low-boiling-point ethyl acetate, improving the peel strength, heat-sealing performance, and chemical resistance of the composite film.

[0003] However, most of the existing high-efficiency curing chambers for large-width composite films on the market lack insulation structures when placing or removing the large-width composite film. This results in the loss of heat from the previous curing operation inside the curing chamber after the door is opened, requiring the current batch to be reheated to reach the set temperature, which increases the heating time and reduces curing efficiency.

[0004] Therefore, those skilled in the art have provided a high-efficiency curing chamber for large-width composite membranes to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a high-efficiency curing chamber for large-width composite films. The first servo motor in the action mechanism drives the winding roller to retract or extend the insulation curtain. The return spring applies tension to the slider and the insulation curtain is straightened by the cable. The insulation curtain can be used to cover and insulate the opening of the chamber.

[0006] To achieve the above objectives, this utility model provides the following technical solution: A high-efficiency curing chamber for a large-width composite film includes a box body, two winding rollers, and two side plates. An actuation mechanism is installed inside the box body, comprising two winding rollers, four return springs, and four cables. A first servo motor is installed in the upper and lower cavities of the front end of one side of the box body. The output shafts of the first servo motors pass through the box body and are fixedly connected to the winding rollers. A heat-insulating curtain is fitted onto the middle of the outer wall of each winding roller. Fixing blocks are fixedly connected to both sides of the upper and lower ends of the box body. Each fixing block has a sliding groove inside. A slider is fixedly connected to the front end of each return spring. The rear ends of each cable pass through the fixing block and are fixedly connected to the slider. The lower ends of two cables pass through the box body and are fixedly connected to the lower heat-insulating curtain, and the upper ends of two cables pass through the box body and are fixedly connected to the upper heat-insulating curtain. The upper and lower ends of the inner walls on both sides of the box body are fixedly connected to the side plates. Through the above technical solution, the first servo motor drives the winding roller to rotate, which performs the operation of raising or lowering the insulation curtain. In conjunction with the return spring in the slide groove, a pulling force is applied to the slider, so that the cable straightens the insulation curtain. Thus, when the box door is opened to take out or put in the large-width composite film, the insulation curtain can be used to cover the opening of the box for insulation.

[0007] Furthermore, each of the four corners of the lower end of the box is fixedly connected with a movable wheel, a control panel is provided in the middle of one side of the outer wall at the front end of the box, multiple heating plates are provided in the middle of the lower end of the box, and boxes are hinged to the upper and lower ends of both sides of the outer wall at the front end of the box. The above technical solution allows the entire device to move and change position on the ground by using four casters fixedly connected to the lower end of the chamber. The control panel on the chamber allows staff to control the operation of the entire device and control the heating plate to heat the inside of the chamber, providing a suitable temperature for the curing process. In addition, the hinged door on the chamber can completely seal the chamber, preventing heat loss during the curing process.

[0008] Furthermore, a fan is provided at the rear end of the upper middle part of the box body. The air inlet of the fan is fixedly connected to an exhaust pipe, the front end of the exhaust pipe is connected through the box body, and the air outlet of the fan is fixedly connected to an exhaust pipe, the lower end of the exhaust pipe is connected through the box body. Through the above technical solution, the fan installed on the box can draw out the air inside the box through the air intake pipe fixedly connected to its air inlet, and then discharge it back into the box through the exhaust pipe, forming an air circulation channel. This allows the air inside the box to be heated evenly, thereby improving the consistency of the curing progress of the large-width composite film inside the box.

[0009] Furthermore, the other side of each of the winding rollers is rotatably connected to the housing, the inner wall of each of the rear ends of the slide groove is fixedly connected to the return spring, and each of the sliders slides inside the slide groove; With the above technical solution, when the insulation curtain is wound or unwound by the winding roller, the return spring acts on the slider, allowing the slider to move within the groove, thereby keeping the insulation curtain taut by the cable. The distance and position of the gap between the insulation curtains can be controlled by controlling the number of times each winding roller winds the insulation curtain.

[0010] Furthermore, each of the fixed blocks has a pulley rotatably connected to its front end, and the cables are wound around the pulleys. The above technical solution achieves a smoother contact between the cable and the fixed block by winding the cable around a pulley that rotates at the front end of the fixed block, thus reducing wear. At the same time, the part of the box through which the cable passes is fixedly connected to a sealing sleeve made of polytetrafluoroethylene, which has a low coefficient of friction, thereby reducing the degree of friction between the cable and the box while sealing.

[0011] Furthermore, the upper and lower ends of the front ends of the inner walls on both sides of the box are rotatably connected to transition rollers, and the outer walls of the transition rollers are in contact with the heat insulation curtain. By using the above technical solution, the trajectory of the insulation curtain when it is pulled out from the winding roller can be changed by rotating the connecting transition roller inside the box and making it fit with the insulation curtain. Under the action of the cable tension, the insulation curtain forms an L-shape, which fits the inner wall of the front end of the box better. The middle layer of the insulation curtain is made of PVC plastic and covered with a layer of polycarbonate film, so that the entire insulation curtain has a certain degree of transparency and good heat insulation.

[0012] Furthermore, a second servo motor is provided in the cavity at the upper and lower ends of the rear end of one side of the box. The output shaft of the second servo motor passes through the box and is fixedly connected to a rotating rod. The other side of the rotating rod passes through the side plate and is rotatably connected to the box. Through the above technical solution, the second servo motor installed inside the housing can drive the rotating rod to rotate inside the housing, thereby driving the sprocket fixedly connected to the rotating rod to rotate.

[0013] Furthermore, sprockets are fixedly connected to both sides of the outer wall of the rotating rod, and both sides of the four sprockets are rotatably connected to the side plate. A chain is sleeved on each sprocket, and multiple limiting blocks are spaced apart on each chain. Through the above technical solution, the second servo motor drives the rotating rod to rotate the sprocket on it. In conjunction with a sprocket connected to the front end of the side plate, the chain sleeved on the sprocket can move. Two limiting blocks are fixedly connected to the chain as a group, which can restrict the support rod used to set up the large-width composite membrane, allowing the entire large-width composite membrane to be moved in the box by the chain.

[0014] This utility model has the following beneficial effects: This invention proposes a high-efficiency curing chamber for large-width composite films. Two first servo motors in the actuation mechanism drive the winding rollers to rotate, raising or lowering the insulation curtain. A return spring in the slide groove applies tension to the slider, causing the cable to straighten the insulation curtain. Therefore, when the chamber door is opened for loading or unloading the large-width composite film, the insulation curtain can be used to cover the opening, providing insulation and a higher initial temperature for the next curing cycle. This reduces the heating time and improves curing efficiency. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of a high-efficiency curing chamber for a large-width composite membrane proposed in this utility model; Figure 2 An exploded view of a high-efficiency curing chamber for a large-width composite membrane proposed in this utility model; Figure 3 This is a side sectional view of a high-efficiency curing chamber for a large-width composite membrane proposed in this utility model; Figure 4 A cross-sectional view of the housing and fixing block of a high-efficiency curing chamber for a large-width composite membrane proposed in this utility model; Figure 5 Axial sectional view of the box body and door of a high-efficiency curing chamber for a large-width composite membrane proposed in this utility model; Figure 6 for Figure 4 Enlarged view of point A in the middle.

[0016] Explanation of reference numerals in the attached figures: 1. Housing; 2. Casters; 3. Fan; 4. Exhaust pipe; 5. Exhaust pipe; 6. Motion mechanism; 601. First servo motor; 602. Winding roller; 603. Insulation curtain; 604. Transition roller; 605. Fixing block; 606. Slide groove; 607. Return spring; 608. Slider; 609. Pulley; 610. Cable; 7. Control panel; 8. Heating plate; 9. Side plate; 10. Second servo motor; 11. Rotating rod; 12. Sprocket; 13. Chain; 14. Limiting block; 15. Housing door. Detailed Implementation

[0017] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Reference Figure 1-6 This utility model provides a specific implementation method: A high-efficiency curing chamber for a large-width composite film includes a housing 1, two winding rollers 602, and two side plates 9. An actuation mechanism 6 is installed inside the housing 1, comprising the two winding rollers 602, four return springs 607, and four cables 610. A first servo motor 601 is installed in the upper and lower cavities of one side of the housing 1. The output shafts of the first servo motors 601 pass through the housing 1 and are fixedly connected to the winding rollers 602. A heat-insulating curtain 603 is fitted onto the middle of the outer wall of each winding roller 602. The upper end of the housing 1... Fixing blocks 605 are fixedly connected to both sides of the lower end. Sliding grooves 606 are opened inside the fixing blocks 605. The front end of the return spring 607 is fixedly connected to the slider 608. The rear end of the cable 610 passes through the fixing block 605 and is fixedly connected to the slider 608. The lower ends of the two cables 610 pass through the box 1 and are fixedly connected to the lower heat insulation curtain 603. The upper ends of the two cables 610 pass through the box 1 and are fixedly connected to the upper heat insulation curtain 603. The upper and lower ends of the inner walls on both sides of the box 1 are fixedly connected to the side plate 9.

[0019] The two first servo motors 601 in the action mechanism 6 drive the winding roller 602 to rotate, thereby raising or lowering the insulation curtain 603. In conjunction with the return spring 607 in the slide groove 606, a pulling force is applied to the slider 608, causing the cable 610 to straighten the insulation curtain 603. Thus, when the box door 15 is opened for the loading and unloading of the large-width composite film, the insulation curtain 603 can be used to cover the opening of the box 1 to keep it warm, providing a higher initial temperature for the next curing, reducing the heating time and improving the curing efficiency.

[0020] Four casters 2 are fixedly connected to the four corners of the lower end of the chamber 1. A control panel 7 is located in the middle of one side of the front outer wall of the chamber 1. Multiple heating plates 8 are located in the middle of the lower end of the chamber 1. Doors 15 are hinged to the upper and lower ends of both sides of the front outer wall of the chamber 1. The four casters 2 fixedly connected to the lower end of the chamber 1 allow the entire device to move and change position on the ground. The control panel 7 on the chamber 1 allows the operator to control the operation of the entire device and to control the on / off state of the heating plates 8. The heating plates 8 heat the inside of the chamber 1 to provide a suitable temperature for the curing operation. In addition, the hinged doors 15 on the chamber 1 can completely seal the chamber 1 to prevent the chamber from being damaged during the curing operation. 1. To prevent internal heat leakage, a fan 3 is installed at the rear end of the upper middle part of the housing 1. The air inlet of the fan 3 is fixedly connected to an exhaust pipe 4, the front end of which is connected to the housing 1. The air outlet of the fan 3 is fixedly connected to an exhaust pipe 5, the lower end of which is connected to the housing 1. By using the fan 3 installed on the housing 1, the air inside the housing 1 can be extracted through the exhaust pipe 4 fixedly connected to its air inlet, and then discharged back into the housing 1 through the exhaust pipe 5, forming an air circulation channel. This allows the air inside the housing 1 to be heated evenly, thereby improving the consistency of the curing progress of the large-width composite film inside the housing 1. The other side of the winding roller 602 is rotatably connected to the housing 1. The inner wall of the rear end of the slide groove 606 is fixedly connected to the return spring 607. The slider 60 All 8 slide within the groove 606. When the winding roller 602 retracts or expands the insulation curtain 603, the return spring 607 acts on the slider 608, allowing the slider 608 to move within the groove 606. This allows the cable 610 to keep the insulation curtain 603 taut. By controlling the number of turns each winding roller 602 makes around the insulation curtain 603, the distance and position of the gaps between the insulation curtains 603 can be controlled. Each fixing block 605 has a pulley 609 rotatably connected to its front end, and the cable 610 is wound around the pulley 609. By winding the cable 610 around the pulley 609 rotatably connected to the front end of the fixing block 605, a relatively smooth contact is achieved between the cable 610 and the fixing block 605, reducing... The design features low wear and tear. The portion of the cable 610 passing through the housing 1 is fixedly connected to a sealing sleeve made of polytetrafluoroethylene (PTFE), which has a low coefficient of friction. This reduces friction between the cable 610 and the housing 1 while providing a seal. Transition rollers 604 are rotatably connected to the upper and lower ends of the front ends of the inner walls on both sides of the housing 1. The outer walls of the transition rollers 604 are in contact with the insulation curtain 603. By rotatably connecting the transition rollers 604 inside the housing 1 and allowing them to contact the insulation curtain 603, the trajectory of the insulation curtain 603 when pulled out from the winding roller 602 can be altered. Under the tension of the cable 610, the insulation curtain 603 forms an L-shape, fitting more closely to the inner wall of the front end of the housing 1. The middle layer of the insulation curtain 603 is made of PVC plastic and covered with a polycarbonate film.This gives the entire insulation curtain 603 a certain degree of transparency and good heat insulation. A second servo motor 10 is installed in the upper and lower cavities at the rear end of one side of the box 1. The output shaft of the second servo motor 10 passes through the box 1 and is fixedly connected to a rotating rod 11. The other side of the rotating rod 11 passes through the side plate 9 and is rotatably connected to the box 1. The second servo motor 10 installed inside the box 1 can drive the rotating rod 11 to rotate inside the box 1, thereby driving the sprocket 12 fixedly connected to the rotating rod 11 to rotate. Sprockets 12 are fixedly connected to both sides of the outer wall of the rotating rod 11. Each of the four sprockets 12 is rotatably connected to the side plate 9 on both sides. A chain 13 is fitted onto each sprocket 12, and multiple limiting blocks 14 are spaced apart on each chain 13. A second servo motor 10 drives a rotating rod 11 to rotate the sprocket 12 on it. This, in conjunction with a sprocket 12 rotatably connected to the front end of the side plate 9, allows the chain 13 fitted onto the sprocket 12 to move. The limiting blocks 14 fixedly connected to the chain 13 form a group of two, which restrain the support rod used to mount the large-width composite membrane, allowing the entire large-width composite membrane to move within the housing 1 by the chain 13.

[0021] Working principle: When using this large-width composite film high-efficiency curing chamber, the staff first uses an external power source to power the device. Then, the heating plate 8 is controlled by the control panel 7 to heat the inside of the chamber 1. At the same time, the fan 3 draws air from the inside of the chamber 1 through the exhaust pipe 4 and then discharges it back into the chamber 1 through the exhaust pipe 5, so that the air inside the chamber 1 can circulate, making the heat distribution more uniform and better curing the large-width composite film. Next, the staff opens the box door 15 and uses a forklift or other transportation equipment to transport the wide-width composite film to the opening of the box 1. At this time, the control panel 7 is used to start the two first servo motors 601 to drive the winding rollers 602. By controlling the number of winding turns of each winding roller 602, the width and position of the gap between the insulation curtains 603 are changed. If the wide-width composite film needs to be placed on the lower layer, the upper winding roller 602 will wind less and the lower winding roller 602 will wind more, so that the position of the gap is at the bottom, and the opening of the gap is determined by the diameter of the wide-width composite film. Finally, the staff used transport equipment to place the support rod for the large-width composite film between the two limiting blocks 14. Then, the staff started the second servo motor 10 through the control panel 7 to drive the rotating rod 11 to rotate the sprocket 12, so that the chain 13 would move and transport the large-width composite film into the box 1. During the process of putting it in or taking it out, the insulation curtain 603 formed an insulation layer by blocking the opening of the box 1, which reduced the heat loss generated during the previous batch's curing, increased the initial temperature of the current batch, shortened the time required for reheating, and improved efficiency.

[0022] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0023] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0024] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency curing chamber for large-width composite films, comprising a housing (1), two winding rollers (602), and two side plates (9), characterized in that: The housing (1) is equipped with an actuation mechanism (6), which includes two winding rollers (602), four return springs (607), and four cables (610). A first servo motor (601) is installed in the cavity at the upper and lower ends of one side of the housing (1). The output shaft of the first servo motor (601) passes through the housing (1) and is fixedly connected to the winding rollers (602). A heat preservation curtain (603) is fitted on the middle of the outer wall of the winding rollers (602). Fixing blocks (605) are fixedly connected to both sides of the upper and lower ends of the housing (1). The fixed block (605) has a sliding groove (606) inside. The front end of the reset spring (607) is fixedly connected to a slider (608). The rear end of the cable (610) passes through the fixed block (605) and is fixedly connected to the slider (608). The lower ends of the two cables (610) pass through the box (1) and are fixedly connected to the lower heat insulation curtain (603). The upper ends of the two cables (610) pass through the box (1) and are fixedly connected to the upper heat insulation curtain (603). The upper and lower ends of the inner walls on both sides of the box (1) are fixedly connected to the side plate (9).

2. The high-efficiency curing chamber for a large-width composite membrane according to claim 1, characterized in that: The four corners of the lower end of the box (1) are fixedly connected with moving wheels (2), the middle of one side of the front outer wall of the box (1) is provided with a control panel (7), the middle of the lower end of the box (1) is provided with multiple heating plates (8), and the upper and lower ends of both sides of the front outer wall of the box (1) are hinged with box doors (15).

3. The high-efficiency curing chamber for a large-width composite membrane according to claim 1, characterized in that: A fan (3) is provided at the rear end of the upper middle part of the box (1). The air inlet of the fan (3) is fixedly connected to an exhaust pipe (4). The front end of the exhaust pipe (4) is connected to the box (1) through. The air outlet of the fan (3) is fixedly connected to an exhaust pipe (5). The lower end of the exhaust pipe (5) is connected to the box (1) through.

4. The high-efficiency curing chamber for a large-width composite membrane according to claim 1, characterized in that: The other side of each of the winding rollers (602) is rotatably connected to the housing (1), the inner wall of the rear end of each of the slide grooves (606) is fixedly connected to the return spring (607), and the sliders (608) slide inside the slide grooves (606).

5. The high-efficiency curing chamber for a large-width composite membrane according to claim 1, characterized in that: The front end of each of the fixed blocks (605) is rotatably connected to a pulley (609), and the cables (610) are all wound around the pulleys (609).

6. The high-efficiency curing chamber for a large-width composite membrane according to claim 1, characterized in that: The upper and lower ends of the inner walls on both sides of the box (1) are rotatably connected to transition rollers (604), and the outer walls of the transition rollers (604) are in contact with the heat preservation curtain (603).

7. The high-efficiency curing chamber for a large-width composite membrane according to claim 1, characterized in that: A second servo motor (10) is provided in the cavity at the upper and lower ends of the rear end of one side of the box (1). The output shaft of the second servo motor (10) passes through the box (1) and is fixedly connected to a rotating rod (11). The other side of the rotating rod (11) passes through the side plate (9) and is rotatably connected to the box (1).

8. The high-efficiency curing chamber for a large-width composite membrane according to claim 7, characterized in that: Both sides of the outer wall of the rotating rod (11) are fixedly connected to sprockets (12). Both sides of the four sprockets (12) are rotatably connected to the side plate (9). Each sprocket (12) is fitted with a chain (13), and each chain (13) is provided with multiple limiting blocks (14) at intervals.

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