A drying assembly for reflective film production

Abstract

The utility model discloses a kind of drying assemblies for retroreflective film production, it is related to retroreflective film drying technical field.The utility model includes drying oven, drying oven upper and lower portion is equipped with blow-drying mechanism, and the middle part of drying oven is provided with heating mechanism, further include: two L-shaped fixed blocks of being equipped with in the both sides of drying oven, the long side of L-shaped fixed block is elastically matched with trapezoidal clamping block;Among them, trapezoidal clamping block is transversely provided with clamping groove;For extruding trapezoidal clamping block sliding unlocking piece, unlocking piece one end elastically matched in the short side of L-shaped fixed block;And the two protective frames of being clamped in the both sides of drying oven.The utility model utilizes the slope extrusion control of trapezoidal clamping block's elastic lock and unlocking piece, by pressing and releasing unlocking piece, the locking and unlocking of U-shaped plug-in block can be completed, the convenient disassembly of protective frame and cleaning layer is realized, and the efficiency of cleaning layer replacement is improved.

Description

Technical Field

[0001] This utility model belongs to the field of reflective film drying, specifically, it relates to a drying component for reflective film production. Background Technology

[0002] Reflective film drying is a key process step in the production of reflective film. Its main purpose is to evaporate the solvent or moisture in the coating (including adhesives, resins, glass microspheres, etc.) applied to the substrate (such as PET film) by heating, and to bring the coating to the required curing state.

[0003] Chinese Patent CN212842742U discloses a drying device for processing reflective film, comprising: a drying chamber, a first heating cylinder, a cylinder, a fan, and a winding roller. A cleaning cotton is attached to the inner side of the outlet on one side of the drying chamber, and one end of the cleaning cotton is connected to a connecting plate. The drying chamber on the base has an inlet and an outlet on both sides, and guide rollers are installed on the inner and outer sides of both the inlet and outlet. The first heating cylinder is located inside the drying chamber. This application successfully solves the technical problem of the reflective film being difficult to clean after drying by using a cleaning cotton to clean the surface of the reflective film. However, in practical applications, after a period of use, the cleaning effect of the cleaning cotton gradually decreases due to dirt and wear; in addition, foreign matter accumulated in the cleaning cotton may scratch the surface of the subsequently conveyed reflective film; and because the cleaning cotton is connected to one end of the connecting plate, which is connected to the inner side of the drying chamber outlet, it is not easy to conveniently replace the cleaning cotton. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a drying component for the production of reflective film, which solves the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0006] A drying assembly for producing reflective film includes a drying chamber, with drying mechanisms installed at both the top and bottom, and a heating mechanism located in the middle of the drying chamber. It also includes:

[0007] Two L-shaped fixing blocks are installed on both sides of the drying oven. Trapezoidal locking blocks are elastically fitted inside the long side of the L-shaped fixing blocks; wherein, the trapezoidal locking blocks are provided with locking grooves in the horizontal direction.

[0008] An unlocking component for sliding the trapezoidal locking block, one end of which is elastically fitted within the short side of the L-shaped fixed block; and

[0009] Two protective frames are snapped onto both sides of the drying oven, and a U-shaped insert with a through slot is provided on the upper part of the protective frame; the inner wall of the protective frame is coated with a cleaning layer.

[0010] Optionally, the unlocking component includes a rod body, with a pressing plate and a trapezoidal push block that fits against the inclined surface of the trapezoidal locking block at both ends.

[0011] Optionally, the drying mechanism is a fan installed outside the drying chamber.

[0012] Optionally, a hollow plate placed inside the drying chamber is fixedly fitted to the output end of the fan, and several air outlets are provided on the side of the hollow plate away from the fan.

[0013] Optionally, the heating mechanism includes an electric push rod embedded in the top of the drying chamber, with a U-shaped frame fixedly fitted to the output shaft of the electric push rod. The U-shaped frame is slidably fitted inside the drying chamber, and an upper heating roller is rotatably fitted between the two sides of the inner wall of the U-shaped frame.

[0014] Optionally, two fixing plates are installed between the two sides of the drying box, and a lower heating roller is rotatably fitted between the middle of the two fixing plates.

[0015] Optionally, two first support plates are installed on one side of the drying box, and a second guide roller is rotatably fitted between the upper parts of the two first support plates.

[0016] Optionally, two second support plates are installed on the side of the drying box away from the second guide roller, and a winding mechanism is detachably installed between the upper parts of the two second support plates.

[0017] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:

[0018] By utilizing the elastic locking of the trapezoidal locking block and the inclined extrusion control of the unlocking component, the U-shaped insert can be locked and unlocked by pressing and releasing the unlocking component. This enables convenient disassembly and assembly of the protective frame and cleaning layer, improves the efficiency of cleaning layer replacement, reduces the time cost of cleaning layer replacement operations, and reduces the risk of scratching the reflective film surface due to excessive accumulation of foreign matter in the cleaning layer.

[0019] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0020] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the drying component;

[0022] Figure 2 This is a schematic diagram of the cross-sectional structure of the drying component;

[0023] Figure 3 This is a schematic diagram of the cross-sectional structure of the L-shaped fixing block;

[0024] Figure 4 A three-dimensional structural diagram of the trapezoidal locking block, the U-shaped insert block, and the unlocking component;

[0025] Figure 5 A schematic diagram of the internal slot of the L-shaped fixing block;

[0026] Figure 6 This is a schematic diagram of the winding mechanism and motor structure.

[0027] The attached diagram lists the components represented by each number as follows:

[0028] Drying oven 1, insertion port 101, oven legs 102, movable door 103, handle 104, fixing plate 105, first guide film roller 106, first support plate 107, second guide film roller 108, second support plate 109, lower heating roller 110.

[0029] Drying mechanism 2, fan 201, hollow plate 202, air outlet 203;

[0030] 3 winding mechanism, 301 winding roller, 302 limiting disc;

[0031] L-shaped fixing block 4, through hole 401, second slide groove 402, slot 403, first slide groove 404;

[0032] Heating mechanism 5, electric push rod 501, U-shaped frame 502, upper heating roller 503;

[0033] Protective frame 6, cleaning layer 601, support block 602, U-shaped insert block 603;

[0034] Trapezoidal block 7, slot 701, first spring 702;

[0035] Unlocking component 8, trapezoidal push block 801, rod body 802, pressing plate 803, second spring 804;

[0036] Motor 9, connecting plate 901, bolt 902.

[0037] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0038] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0039] Please see Figure 1-6 As shown, this embodiment provides a drying assembly for reflective film production, including a drying chamber 1, with drying mechanisms 2 installed at both the top and bottom of the drying chamber 1, and a heating mechanism 5 installed in the middle of the drying chamber 1, and further including:

[0040] Two L-shaped fixing blocks 4 are installed on both sides of the drying oven 1. Trapezoidal locking blocks 7 are elastically fitted inside the long side of the L-shaped fixing blocks 4. The cross section of the trapezoidal locking blocks 7 is a right-angled trapezoidal structure. The trapezoidal locking blocks 7 are provided with a slot 701 in the transverse direction, and the slot 701 passes through the trapezoidal locking blocks 7.

[0041] Unlocking component 8 is used to slide the trapezoidal locking block 7. One end of the unlocking component 8 is elastically fitted inside the short side of the L-shaped fixing block 4; and

[0042] Two protective frames 6 are snapped onto both sides of the drying oven 1. The upper part of the protective frame 6 is provided with a U-shaped insert 603 that passes through the slot 701. The transverse cross section of the U-shaped insert 603 is a U-shaped structure. The inner wall of the protective frame 6 is coated with a cleaning layer 601.

[0043] Optionally, the drying chamber 1 is equipped with multiple legs 102 on its lower side, and a hinged door 103 is connected to the front of the drying chamber 1. A handle 104 is installed on the exposed surface of the door 103. By adding legs 102 to the lower side of the drying chamber 1, stable support is provided, while avoiding the air intake being affected by the lower drying mechanism 2 being close to the ground. The cooperation between the door 103 and the handle 104 facilitates the inspection and maintenance of the interior of the drying chamber 1 and improves the convenience of the reflective film insertion operation.

[0044] Optionally, both sides of the drying oven 1 are provided with insertion ports 101 communicating with their inner cavities, and one side of the protective frame 6 is snapped into the insertion port 101. The protective frame 6 can be positioned and installed through the insertion port 101.

[0045] Optionally, the L-shaped fixing block 4 has a first sliding groove 404 for the trapezoidal locking block 7 to slide. A first spring 702 is installed between the trapezoidal locking block 7 and one side of the first sliding groove 404. The L-shaped fixing block 4 has a slot 403 laterally. The slot 403 passes through the first sliding groove 404 and the long side of the L-shaped fixing block 4. The slot 403 and the first sliding groove 404 are arranged in a cross shape. The U-shaped insert 603 passes through the slot 403. Through the elastic limiting of the trapezoidal locking block 7 by the first sliding groove 404 and the first spring 702, and the cross arrangement of the slot 403 and the first sliding groove 404, the precise alignment of the U-shaped insert 603 when inserted into the slot 701 is ensured.

[0046] Optionally, a support block 602 is provided on the upper side of the protective frame 6, and a U-shaped insert 603 is provided on the upper side of the support block 602. The support block 602 abuts against the L-shaped fixing block 4, limiting the distance that the U-shaped insert 603 is inserted into the slot 403, and aligning the middle notch of the U-shaped insert 603 with the trapezoidal locking block 7.

[0047] One application of this embodiment is as follows: First, press the unlocking member 8 to squeeze the inclined surface of the trapezoidal block 7, forcing the trapezoidal block 7 to slide and compress the first spring 702, so that the slot 701 coincides and aligns with the slot 403; then, insert the protective frame 6 into the insertion port 101, and during this process, the U-shaped insert 603 slides into the slot 403; when the middle notch of the U-shaped insert 603 aligns with the slot 701, release the pressure on the unlocking member 8; under the elastic force of the first spring 702, the end of the trapezoidal block 7 away from its inclined surface is inserted into the middle notch of the U-shaped insert 603, so that the protective frame 6 is locked on the side of the drying oven 1; similarly, by pressing the unlocking member 8 again with reference to the above operation, the protective frame 6 can be disassembled to replace the cleaning layer 601; finally, depending on the manufacturing status of the reflective film, the protective frame 6 can be selectively installed on one or both sides of the drying oven 1. It should be noted that all electrical devices involved in this application can be powered by batteries or external power sources.

[0048] By utilizing the elastic locking of the trapezoidal locking block 7 and the inclined pressing control of the unlocking component 8, the U-shaped insert 603 can be locked and unlocked by pressing and releasing the unlocking component 8. This enables convenient disassembly and assembly of the protective frame 6 and the cleaning layer 601, improves the efficiency of replacing the cleaning layer 601, reduces the time cost of replacing the cleaning layer 601, and reduces the risk of scratching the reflective film surface due to excessive accumulation of foreign matter in the cleaning layer 601.

[0049] like Figure 3 , 4As shown, the unlocking component 8 in this embodiment includes a rod 802. A pressing plate 803 and a trapezoidal push block 801 that fits against the inclined surface of the trapezoidal locking block 7 are respectively installed at both ends of the rod 802. The trapezoidal push block 801 has a right-angled trapezoidal cross-section. Optionally, a second spring 804 is installed between the pressing plate 803 and the L-shaped fixing block 4, and the second spring 804 is located on the periphery of the rod 802. Optionally, the L-shaped fixing block 4 has a through hole 401 and a second sliding groove 402 on both sides. The first sliding groove 404 is located on one side of the second sliding groove 402, and the two are interconnected. The rod 802 passes through the through hole 401, and the trapezoidal push block 801 slides within the second sliding groove 402. The inclined surface of the trapezoidal locking block 7 is located within the second sliding groove 402. The trapezoidal push block 801 and the pressing plate 803 are connected by the rod body 802, which makes it easy to press the pressing plate 803 with one hand. This allows the trapezoidal push block 801 to slide and squeeze the inclined surface of the trapezoidal locking block 7, and, in conjunction with the second spring 804, the unlocking component 8 to quickly reset after being pressed. The through hole 401 and the second slide groove 402 guide the sliding of the rod body 802 and the trapezoidal push block 801, reducing the probability of unlocking failure.

[0050] like Figure 1 , 2 As shown, the drying mechanism 2 in this embodiment is a fan 201 installed outside the drying chamber 1. Optionally, a hollow plate 202 placed inside the drying chamber 1 is fixedly fitted to the output end of the fan 201. The side of the hollow plate 202 near the fan 201 has an air inlet hole, and the hollow plate 202 and the fan 201 are connected through the air inlet hole. The side of the hollow plate 202 away from the fan 201 has several air outlet holes 203, which are connected to the inner cavity of the hollow plate 202. The rated air volume of the fan 201 is ≥0.8m³ / s, and the air pressure is ≥800Pa, overcoming the resistance of the hollow plate 202 and the air outlet holes 203. Optionally, two fans 201 are respectively installed on the upper and lower sides of the drying chamber 1, and two hollow plates 202 are respectively installed on the upper and lower sides of the inner wall of the drying chamber 1. Optionally, the drying chamber 1 has an air outlet on its side for exhaust and dehumidification. The air outlet is connected to the inner cavity of the drying chamber 1, and the total area of ​​the air outlet is ≥120% of the air inlet area, ensuring efficient exhaust of humid air and avoiding airflow turbulence caused by positive pressure inside the drying chamber 1. Through the through-type design of the fan 201 and the hollow plate 202 and the distribution of multiple air outlets 203, a bidirectional airflow is formed to evenly cover the reflective film. Combined with the air outlet structure on the side of the drying chamber 1, it accelerates the exhaust of moisture inside the chamber and improves the evaporation efficiency of the film surface.

[0051] like Figure 1 , 2As shown, the heating mechanism 5 in this embodiment includes an electric push rod 501 embedded in the top of the drying chamber 1. The adjustable stroke of the electric push rod 501 is 50-80mm, which can adapt to film thicknesses of 0.1-3mm plus a safety gap. The output shaft of the electric push rod 501 is fixedly fitted with a U-shaped frame 502. The vertical cross-section of the U-shaped frame 502 is an inverted U-shaped structure. The U-shaped frame 502 is slidably fitted inside the drying chamber 1. An upper heating roller 503 is rotatably fitted between the two sides of the inner wall of the U-shaped frame 502. Optionally, the hollow plate 202 located above is vertically provided with a receiving groove. The receiving groove penetrates the hollow plate 202, and the receiving groove and the inner cavity of the hollow plate 202 are not interconnected. The lower end of the electric push rod 501 is embedded in the receiving groove. Optionally, two fixed plates 105 are installed between the two sides of the drying chamber 1. A lower heating roller 110 is rotatably engaged between the middle of the two fixed plates 105. The working temperature range of the upper heating roller 503 and the lower heating roller 110 is 50℃~120℃, which can cover common reflective film types. 50℃ is the minimum effective drying temperature, and 120℃ is the upper limit to avoid deformation of the film material or deterioration of the reflective layer caused by high temperature. Optionally, a first guide roller 106 is rotatably engaged between both ends of the two fixed plates 105. The height of the upper heating roller 503 is adjusted by driving the U-shaped frame 502 with the electric push rod 501 to adapt to reflective films of different thicknesses. Combined with the lower heating roller 110, the upper and lower surfaces of the reflective film can be dried simultaneously. The first guide roller 106 maintains the stability of the tension of the reflective film, avoids wrinkles or displacement during the drying process, and improves the flatness of the reflective film conveying.

[0052] like Figure 1 , 2 As shown, in this embodiment, two first support plates 107 are installed on one side of the drying chamber 1, and a second guide roller 108 is rotatably coupled between the upper parts of the two first support plates 107. Through the cooperation of the first support plates 107 and the second guide roller 108, and in conjunction with the adjacent first guide roller 106, the reflective film is horizontally conveyed into the drying chamber 1 for drying, reducing the probability of the reflective film tilting and rubbing against the groove wall or corner.

[0053] like Figure 1 , 2As shown in Figure 6, in this embodiment, two second support plates 109 are installed on the side of the drying chamber 1 away from the second guide roller 108. A winding mechanism 3 is detachably installed between the upper parts of the two second support plates 109. Optionally, a third guide roller is rotatably fitted between the middle parts of the two second support plates 109. Optionally, a shaft is rotatably fitted on the upper part of each of the two second support plates 109. A connecting plate 901 is provided at the end of the shaft. The connecting plate 901 is located between the two second support plates 109. Bolts 902 are provided at both ends of the connecting plate 901. A gap is reserved between the connecting plate 901 and the second support plate 109 for the head of the bolt 902 to pass through. A motor 9 is installed on the upper part of one of the second support plates 109. The output shaft of the motor 9 is fixedly fitted to the end of the corresponding shaft. The linear speed of the motor 9 driving the winding mechanism 3 is 0.5 to 5 m / min, reducing the probability of insufficient drying due to excessively low speed affecting efficiency and excessively high speed affecting efficiency. Optionally, the winding mechanism 3 includes a winding roller 301, with limiting discs 302 on both ends of the winding roller 301. The shank of the bolt 902 passes through the connecting plate 901 and is threaded into the limiting disc 302. When threading the reflective film, the end of the reflective film is passed under the second guide roller 108 and into the drying chamber 1 through the adjacent protective frame 6. Then, the reflective film is passed over the lower heating roller 110 and the two first guide rollers 106 and exits the drying chamber 1 through the protective frame 6 on the other side. Next, the reflective film is passed under the third guide roller and finally wrapped around the periphery of the winding roller 301. The bolt 902 passes through the connecting plate 901 and locks the limiting disc 302, thus enabling the disassembly and assembly of the take-up roller 301. The structure of the motor 9 directly driving the shaft allows the connecting plate 901 to drive the limiting disc 302 and the take-up roller 301 to rotate, enabling the take-up roller 301 to rotate and take up the reflective film. The limiting disc 302 also improves the neatness of the reflective film winding. The third guide roller, in conjunction with the adjacent first guide roller 106, allows the reflective film to be horizontally conveyed out of the drying box 1, reducing the probability of the reflective film tilting and rubbing against the groove wall or corner.

[0054] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. A drying assembly for producing reflective film, comprising a drying chamber (1), wherein the upper and lower parts of the drying chamber (1) are equipped with drying mechanisms (2), and a heating mechanism (5) is provided in the middle of the drying chamber (1), characterized in that, Also includes: Two L-shaped fixing blocks (4) are installed on both sides of the drying oven (1). The long side of the L-shaped fixing block (4) is elastically fitted with a trapezoidal locking block (7); wherein, the trapezoidal locking block (7) is provided with a slot (701) in the transverse direction. An unlocking component (8) is used to slide the trapezoidal locking block (7), one end of which is elastically fitted within the short side of the L-shaped fixing block (4); and Two protective frames (6) are snapped onto both sides of the drying oven (1). The upper part of the protective frame (6) is provided with a U-shaped insert (603) that passes through the slot (701); the inner wall of the protective frame (6) is coated with a cleaning layer (601).

2. The drying assembly for reflective film production according to claim 1, characterized in that, The unlocking component (8) includes a rod (802), with a pressing plate (803) and a trapezoidal push block (801) that fits against the inclined surface of the trapezoidal card block (7) respectively at both ends of the rod (802).

3. The drying assembly for reflective film production according to claim 1, characterized in that, The drying mechanism (2) is a fan (201) installed outside the drying box (1).

4. A drying assembly for producing reflective film according to claim 2, characterized in that, The output end of the blower (201) is fixedly fitted with a hollow plate (202) placed inside the drying box (1), and the side of the hollow plate (202) away from the blower (201) is provided with several air outlet holes (203).

5. A drying assembly for producing reflective film according to claim 1, characterized in that, The heating mechanism (5) includes an electric push rod (501) embedded in the top of the drying box (1). The output shaft of the electric push rod (501) is fixedly fitted with a U-shaped frame (502). The U-shaped frame (502) is slidably fitted inside the drying box (1). An upper heating roller (503) is rotatably fitted between the two sides of the inner wall of the U-shaped frame (502).

6. A drying assembly for producing reflective film according to claim 5, characterized in that, Two fixing plates (105) are installed between the two sides of the drying box (1), and a lower heating roller (110) is rotatably fitted between the middle of the two fixing plates (105).

7. A drying assembly for producing reflective film according to claim 1, characterized in that, Two first support plates (107) are installed on one side of the drying box (1), and a second guide roller (108) is rotatably connected between the upper parts of the two first support plates (107).

8. A drying assembly for producing reflective film according to claim 7, characterized in that, Two second support plates (109) are installed on the side of the drying box (1) away from the second guide roller (108), and a winding mechanism (3) is detachably installed between the upper parts of the two second support plates (109).

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