High-efficiency cooling device for PVB interlayer production

Abstract

The utility model discloses a kind of efficient cooling device for PVB interlayer production, including support frame, the rear side position of support frame is equipped with two groups of driving motor, the output end of driving motor is connected with the end transmission of conveying belt component, the upper end outside of support frame is fixed with cooling box;The inside of cooling box is equipped with cooling mechanism, the driving member includes motor and transmission part, the execution end of driving member is fixedly connected with the end of cleaning plate, the cleaning plate is used to carry out dust cleaning to the air inlet outside opened in the top of cooling box.This efficient cooling device for PVB interlayer production, by driving member driving cleaning plate along the limit plate sliding, can actively clean the dust outside air inlet in the top of cooling box, cooperate with the dustproof plate of extension of both sides of cooling box to block side dust invasion, while tensioner ensures that conveying belt component is stably conveyed, ensure that PVB interlayer is cooled evenly, further guarantee product quality and production continuity.

Description

Technical Field

[0001] This utility model relates to the technical field of PVB intermediate film production, specifically a high-efficiency cooling device for PVB intermediate film production. Background Technology

[0002] PVB interlayer is a semi-transparent film, mainly used in laminated glass. It is a special type of glass made by sandwiching a layer of PVB film between two pieces of glass, followed by high-pressure lamination and heating. PVB laminated glass is widely used in the construction, automotive, and photovoltaic industries due to its multiple functions such as safety, heat insulation, noise control, and UV protection. Meibang PVB interlayer, produced with a special formula, also has wide applications in aerospace, military, and high-tech industries, such as in aircraft, aerospace products, military instruments, solar cells, and solar receivers. The PVB interlayer material is produced at high temperatures, and cooling is necessary to ensure production quality. However, the cooling devices used in the production of ordinary PVB interlayer material are simple in structure and have unsatisfactory cooling effects.

[0003] To solve the above problems, a cooling device for the production of PVB intermediate film material can be referred to in the prior art (Chinese patent application number CN201621406135.9, application date 2016-12-21). This cooling device uses a motor to drive a conveyor belt to transport the PVB intermediate film material into the cooling chamber. Several cooling fans at the bottom of the cooling chamber blow air into the chamber, promoting air circulation inside the cooling chamber and allowing the heat in the PVB intermediate film material to dissipate. In addition, a cold water pipe is installed at the top of the cooling fans to reduce the temperature of the blown air and improve the cooling effect. The hot air is discharged from the exhaust device at the top of the cooling chamber.

[0004] Although the above-mentioned device can solve the problem of unsatisfactory cooling effect, it still has shortcomings in use. During the air cooling process, it absorbs and discharges outside air, but in this process, some dust is easily discharged along with the airflow. A large amount of dust can easily adhere to the PVB interlayer, which can lead to low efficiency in the PVB interlayer manufacturing process.

[0005] Therefore, we proposed a high-efficiency cooling device for PVB interlayer film production, which can effectively solve the above problems. Utility Model Content

[0006] The purpose of this invention is to provide a high-efficiency cooling device for PVB interlayer film production, in order to solve the problem mentioned in the background art. Currently available high-efficiency cooling devices for PVB interlayer film production absorb and discharge outside air during the air cooling process. However, in this process, some dust is easily discharged along with the airflow. A large amount of dust can easily adhere to the PVB interlayer film, which can lead to low efficiency in the PVB interlayer film manufacturing process.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a high-efficiency cooling device for PVB interlayer film production, comprising a support frame, two sets of drive motors installed on the rear side of the support frame, the output ends of the drive motors being connected to the end of the conveyor belt assembly, and a cooling box fixed to the upper outer side of the support frame; a cooling mechanism installed inside the cooling box, the cooling mechanism being used to cool the PVB interlayer film conveyed on the top of the conveyor belt assembly; a coolant conveying component fixed to one side of the cooling box, the coolant conveying component including a coolant circulation pump and a matching storage tank, the inlet and outlet of the coolant conveying component being respectively sealed to both ends of a circulation hose, the circulation hose being arranged in a meandering shape and fitting against the outer side of the cooling mechanism; a driving component installed on the outer side of the cooling box, the driving component including a motor and a transmission component, the actuating end of the driving component being fixedly connected to the end of a cleaning plate, the outer side of the cleaning plate being slidably disposed inside a limiting plate, the limiting plate being fixed to the top of the cooling box, and the cleaning plate being used to clean dust from the outer side of the air inlet opened on the top of the cooling box.

[0008] As a preferred technical solution of this application, the cooling mechanism includes a cooling fan fixed inside the cooling box, the air inlet of the cooling fan being connected to the air outlet, and the output end of the cooling fan corresponding to the top of the meandering circulation hose; the bottom of the circulation hose is fixed to the top of the ventilated mesh plate, and the side of the ventilated mesh plate is fixedly connected to the inside of the cooling box; a heat exhaust port is provided on the outside of the cooling box, and extended dustproof plates are fixed on both the left and right sides of the cooling box, the extended dustproof plates being horizontally arranged on the outside of the support frame, and the outermost edge of the extended dustproof plates extending beyond the outer edge of the cooling box.

[0009] As a preferred technical solution of this application, the bottom outer side of the conveyor belt assembly is fitted with the top of the tensioner, and the bottom end of the tensioner is installed on the inner side of the support frame; the drive motor is electrically connected to the control panel, and the control panel is fixedly installed on the surface of the support frame.

[0010] As a preferred technical solution of this application, the transmission component of the drive component is a threaded rod, the outer side of which is threadedly connected to one end of the cleaning plate, and the top of the cleaning plate is tightly fitted to the top of the cooling box; an acceleration mechanism is linked to the outer side of the end of the threaded rod, and the outer side of the acceleration mechanism acts on the outer side of the circulation hose to adjust the delivery rate of the coolant inside the circulation hose.

[0011] As a preferred technical solution of this application, the outermost position of the cleaning plate along the limiting plate extends to the outside of the cooling box, and a collection groove is embedded in the cleaning plate at the maximum stroke position, the collection groove being used to collect the dust scraped off by the cleaning plate.

[0012] As a preferred technical solution of this application, the acceleration mechanism includes a cam fixed to the end of the threaded rod, with the outer side of the cam correspondingly positioned directly above the extrusion block; the outer side of the extrusion block is slidably sleeved on the outer side of the guide block, and the inner side of the lower end of the extrusion block is in contact with the outer side of the upper end of the circulation hose; the outer side of the lower end of the circulation hose is in contact with one side of the fixed support block.

[0013] As a preferred technical solution of this application, one side of the fixed support block is fixedly connected to the side wall of the coolant conveying component, and one side of the guide block is fixedly connected to the side wall of the coolant conveying component; a spring is nested on the outside of the guide block, and the two ends of the spring abut against the end of the guide block and the side wall of the squeezing block, respectively, for the reset movement of the squeezing block.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: This high-efficiency cooling device for PVB interlayer film production, through a driving component, drives a cleaning plate to slide along a limiting plate, which can actively clean the dust outside the air inlet at the top of the cooling box. Combined with extended dustproof plates on both sides of the cooling box to prevent side dust intrusion, this double dustproof structure prevents dust from adhering to the PVB interlayer film with the cooling air, reducing film surface defects and subsequent cleaning processes, and improving production efficiency. The coolant delivery component, with its meandering circulating hose, can stably deliver coolant, and the acceleration mechanism at the end of the threaded rod can adjust the coolant flow rate. Combined with the cooling fan and the ventilated mesh plate for coordinated air and liquid cooling, the cooling effect is significantly improved. At the same time, the tensioner ensures smooth conveying of the conveyor belt assembly, ensuring uniform cooling of the PVB interlayer film, further guaranteeing product quality and production continuity. Specific details are as follows:

[0015] 1. The threaded rod of the drive unit drives the cleaning plate to slide tightly against the top of the cooling box, which can thoroughly remove the dust accumulated on the outside of the air inlet. The collection groove at the maximum stroke of the cleaning plate can directly collect the scraped dust, preventing the dust from falling again. The extended dustproof plates on both sides of the cooling box extend beyond the outside of the cooling box and can cover the area on both sides of the conveyor belt assembly, blocking external dust from entering the cooling area from the side. This eliminates the need for frequent shutdowns to clean the dust, significantly reducing maintenance costs, ensuring the cleanliness of the cooling air, and preventing quality problems caused by dust adhesion to the PVB film.

[0016] 2. The meandering circulating hose increases the contact area with the cooling air, improving heat exchange efficiency. At the same time, the cam of the acceleration mechanism rotates with the threaded rod to squeeze the extrusion block. Combined with the spring reset on the outside of the guide block, the flow rate of the coolant in the circulating hose can be flexibly adjusted to meet the cooling requirements of different thicknesses of PVB interlayer film. In addition, the tensioner ensures stable tension of the conveyor belt assembly, avoids uneven cooling caused by film conveying deviation, and improves the consistency of product size and performance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0018] Figure 2 This is a side view of the structure of this utility model;

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0020] Figure 4 This is a bottom view of the cooling box structure of this utility model;

[0021] Figure 5 This is a partial cross-sectional structural diagram of the cooling box of this utility model;

[0022] Figure 6 This is a schematic diagram of the main structure of the extrusion block of this utility model.

[0023] In the diagram: 1. Support frame; 2. Control panel; 3. Drive motor; 4. Conveyor belt assembly; 5. Tensioner; 6. Cooling box; 601. Extended dustproof plate; 7. Cooling fan; 8. Air inlet; 9. Heat exhaust port; 10. Breathable mesh plate; 11. Circulation hose; 12. Coolant delivery component; 13. Drive component; 14. Cleaning plate; 15. Limiting plate; 16. Collection tank; 17. Cam; 18. Extrusion block; 19. Guide block; 20. Fixed support block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-6 The present invention provides the following technical solution: a high-efficiency cooling device for the production of PVB interlayer film.

[0026] Example 1: To address the issue that current high-efficiency cooling devices for PVB interlayer film production, during air cooling, absorb and discharge outside air, which easily leads to dust being diverted and discharged, and a large amount of dust adhering to the PVB interlayer film, thus causing low efficiency in the PVB interlayer film manufacturing process, please refer to the attached... Figure 1 -Appendix Figure 5Two sets of drive motors 3 are installed on the rear side of the support frame 1. The output ends of the drive motors 3 are connected to the end of the conveyor belt assembly 4. A cooling box 6 is fixed to the upper outer side of the support frame 1. A cooling mechanism is installed inside the cooling box 6 to cool the PVB interlayer film conveyed on the top of the conveyor belt assembly 4. A coolant conveyor 12 is fixed to one side of the cooling box 6. The inlet and outlet of the coolant conveyor 12 are respectively sealed to both ends of the circulation hose 11. The circulation hose 11 is arranged in a meandering shape to fit the cooling mechanism. The outer side; a drive unit 13 is installed on the outer side of the cooling box 6. The drive unit 13 includes a motor and transmission components. The actuating end of the drive unit 13 is fixedly connected to the end of the cleaning plate 14. The outer side of the cleaning plate 14 is slidably disposed on the inner side of the limiting plate 15. The limiting plate 15 is fixed to the top of the cooling box 6. The cleaning plate 14 is used to clean dust from the outer side of the air inlet 8 opened on the top of the cooling box 6. The cooling mechanism includes a cooling fan 7 fixed inside the cooling box 6. The air inlet of the cooling fan 7 is connected to the air inlet 8. The output end of the cooling fan 7 is connected to the winding... The top of the circulating hose 11 is correspondingly positioned; the bottom of the circulating hose 11 is fixed to the top of the ventilated mesh plate 10, and the side of the ventilated mesh plate 10 is fixedly connected to the inner side of the cooling box 6; a heat exhaust port 9 is opened on the outer side of the cooling box 6, and extended dustproof plates 601 are fixed on both the left and right sides of the cooling box 6. The extended dustproof plates 601 are horizontally positioned on the outer side of the support frame 1, and the outermost edge of the extended dustproof plates 601 extends beyond the outer edge of the cooling box 6; the bottom outer side of the conveyor belt assembly 4 is attached to the top of the tensioner 5, and the bottom end of the tensioner 5 is installed... The drive motor 3 is electrically connected to the control panel 2, which is fixedly installed on the surface of the support frame 1. The transmission component of the drive component 13 is a threaded rod, the outer side of which is threadedly connected to one end of the cleaning plate 14. The top of the cleaning plate 14 is tightly fitted to the top of the cooling box 6. The cleaning plate 14 extends to the outermost position of the sliding limit plate 15 to the outer side of the cooling box 6. A collection groove 16 is embedded in the cleaning plate 14 at the maximum stroke position. The collection groove 16 is used to collect the dust scraped by the cleaning plate 14.

[0027] The device is activated via control panel 2. Two sets of drive motors 3, once powered on, drive the conveyor belt assembly 4, achieving stable transport of the PVB interlayer film at the top of the conveyor belt assembly 4. The tensioner 5 inside the support frame 1 is flush with the bottom of the conveyor belt assembly 4, allowing for real-time adjustment of the conveyor belt tension to prevent conveying deviation from affecting cooling uniformity. During the cooling phase, the cooling fan 7 inside the cooling box 6 is activated, drawing in outside air through the top air inlet 8. Simultaneously, the coolant delivery component 12 on one side of the cooling box 6 delivers coolant to the circulating hose 11, which meanders and fits against the outside of the cooling mechanism. The airflow output by the cooling fan 7 is cooled as it passes over the outside of the circulating hose 11, forming low-temperature cooling air. This low-temperature cooling air passes through the bottom permeable mesh plate 10. The PVB interlayer membrane conveyed below achieves membrane cooling, and the hot air after heat exchange is discharged through the heat exhaust port 9 on the outside of the cooling box 6. The drive component 13 on the outside of the cooling box 6 is activated, and when its threaded rod rotates, it drives the threaded cleaning plate 14 to slide along the limiting plate 15. The top of the cleaning plate 14 is in close contact with the top of the cooling box 6, which can scrape off the dust accumulated on the outside of the air inlet 8. When the cleaning plate 14 slides to the maximum stroke on the outside of the cooling box 6, the scraped dust falls into the embedded collection groove 16 to prevent the dust from being scattered again. At the same time, the extended dustproof plates 601 on the left and right sides of the cooling box 6 can block the external dust from entering the cooling area from the side. The double dustproof ensures that the cooling air is clean and prevents dust from adhering to the PVB interlayer membrane.

[0028] Example 2: To accelerate the cleaning efficiency of the PVB interlayer, please refer to the attached document. Figure 1 -Appendix Figure 3 Appendix Figure 5 and attached Figure 6 An acceleration mechanism is linked to the outer side of the threaded rod end. The outer side of the acceleration mechanism acts on the outer side of the circulation hose 11 to adjust the delivery rate of the coolant inside the circulation hose 11. The acceleration mechanism includes a cam 17 fixed to the end of the threaded rod, with the outer side of the cam 17 correspondingly positioned directly above the extrusion block 18. The outer side of the extrusion block 18 is slidably sleeved on the outer side of the guide block 19, and the inner side of the lower end of the extrusion block 18 is in contact with the outer side of the upper end of the circulation hose 11. The outer side of the lower end of the circulation hose 11 is in contact with one side of the fixed support block 20. One side of the fixed support block 20 is fixedly connected to the side wall of the coolant delivery component 12, and one side of the guide block 19 is fixedly connected to the side wall of the coolant delivery component 12. A spring is nested on the outer side of the guide block 19, with both ends of the spring abutting against the end of the guide block 19 and the side wall of the extrusion block 18, respectively, for the reset movement of the extrusion block 18.

[0029] Based on Embodiment 1, when the threaded rod of the drive member 13 rotates, the cam 17 fixed at its end rotates synchronously; the outer side of the cam 17 corresponds to the top of the extrusion block 18. When the protruding end of the cam 17 rotates to contact the extrusion block 18, it will press down on the extrusion block 18, causing the extrusion block 18 to slide downward along the guide block 19; the inner side of the lower end of the extrusion block 18 is in contact with the outer side of the upper end of the circulation hose 11, and the outer side of the lower end of the circulation hose 11 is limited by the fixed support block 20. Therefore, when the extrusion block 18 slides downward, it will press down on the circulation hose 11, reducing the internal flow cross section of the hose, thereby increasing the delivery rate of the coolant in the circulation hose 11; when the cam 17 protrudes... When the starting end rotates away from the extrusion block 18, the spring nested on the outside of the guide block 19 releases its elastic force, pushing the extrusion block 18 upward to reset, the circulation hose 11 returns to its original cross-section, and the coolant rate returns to its initial state; through the cyclic action of the continuous rotation of the cam 17 and the spring reset, the coolant delivery rate in the circulation hose 11 can be dynamically adjusted, thereby improving the heat exchange efficiency between the coolant and the airflow output by the cooling fan 7, thus enhancing the cooling effect of the low-temperature cooling air and accelerating the cooling process of the PVB interlayer film; at the same time, this linkage structure does not require an additional drive source, optimizing cooling efficiency while ensuring the dustproof function of the cleaning plate 14, taking into account both energy saving and practicality.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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 invention should be included within the protection scope of the present invention.

Claims

1. A high-efficiency cooling device for PVB interlayer film production, comprising a support frame (1), characterized in that: Two sets of drive motors (3) are installed on the rear side of the support frame (1). The output end of the drive motor (3) is connected to the end of the conveyor belt assembly (4). A cooling box (6) is fixed on the outer side of the upper end of the support frame (1). A cooling mechanism is installed inside the cooling box (6) to cool the PVB interlayer film conveyed on the top of the conveyor belt assembly (4). A coolant conveyor (12) is fixed on one side of the cooling box (6). The inlet and outlet of the coolant conveyor (12) are respectively connected to the two ends of the circulation hose (11). The circulating hose (11) is arranged in a meandering shape on the outside of the cooling mechanism; a drive unit (13) is installed on the outside of the cooling box (6), the drive unit (13) includes a motor and a transmission component, the execution end of the drive unit (13) is fixedly connected to the end of the cleaning plate (14), the outside of the cleaning plate (14) is slidably arranged on the inside of the limiting plate (15), the limiting plate (15) is fixed on the top of the cooling box (6), and the cleaning plate (14) is used to clean the dust on the outside of the air inlet (8) opened on the top of the cooling box (6).

2. The high-efficiency cooling device for PVB interlayer film production according to claim 1, characterized in that: The cooling mechanism includes a cooling fan (7) fixed inside the cooling box (6), the air inlet of the cooling fan (7) is connected to the air inlet (8), and the output end of the cooling fan (7) corresponds to the top of the meandering circulation hose (11); the bottom of the circulation hose (11) is fixed to the top of the ventilated mesh plate (10), and the side of the ventilated mesh plate (10) is fixedly connected to the inside of the cooling box (6); the outside of the cooling box (6) is provided with a heat exhaust port (9), and the left and right sides of the cooling box (6) are fixed with extended dustproof plates (601), the extended dustproof plates (601) are horizontally arranged outside the support frame (1), and the outermost edge of the extended dustproof plates (601) extends beyond the outer edge of the cooling box (6).

3. The high-efficiency cooling device for PVB interlayer film production according to claim 1, characterized in that: The bottom outer side of the conveyor belt assembly (4) is attached to the top of the tensioner (5), and the bottom end of the tensioner (5) is installed on the inner side of the support frame (1); the drive motor (3) is electrically connected to the control panel (2), and the control panel (2) is fixedly installed on the surface of the support frame (1).

4. The high-efficiency cooling device for PVB interlayer film production according to claim 1, characterized in that: The drive component (13) is a threaded rod. The outer side of the threaded rod is threadedly connected to one end of the cleaning plate (14). The top of the cleaning plate (14) is tightly fitted to the top of the cooling box (6). An acceleration mechanism is linked to the outer side of the end of the threaded rod. The outer side of the acceleration mechanism acts on the outer side of the circulation hose (11) to adjust the delivery rate of the coolant inside the circulation hose (11).

5. The high-efficiency cooling device for PVB interlayer film production according to claim 4, characterized in that: The cleaning plate (14) extends to the outermost position of the sliding limit plate (15) to the outside of the cooling box (6), and a collection groove (16) is embedded in the cleaning plate (14) at the maximum stroke position. The collection groove (16) is used to collect the dust scraped off by the cleaning plate (14).

6. The high-efficiency cooling device for PVB interlayer film production according to claim 4, characterized in that: The acceleration mechanism includes a cam (17) fixed to the end of the threaded rod, with the outer side of the cam (17) positioned directly above the extrusion block (18); the outer side of the extrusion block (18) is slidably sleeved on the outer side of the guide block (19), and the inner side of the lower end of the extrusion block (18) is in contact with the outer side of the upper end of the circulation hose (11); the outer side of the lower end of the circulation hose (11) is in contact with one side of the fixed support block (20).

7. The high-efficiency cooling device for PVB interlayer film production according to claim 6, characterized in that: One side of the fixed support block (20) is fixedly connected to the side wall of the coolant delivery component (12), and one side of the guide block (19) is fixedly connected to the side wall of the coolant delivery component (12); a spring is nested on the outside of the guide block (19), and the two ends of the spring abut against the end of the guide block (19) and the side wall of the squeezing block (18) respectively, for the reset movement of the squeezing block (18).

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