Light curtain belt forming equipment

Abstract

The invention belongs to the technical field of emergency management and control, and particularly discloses light curtain belt forming equipment which comprises a box body, a mounting groove is formed in one side of the box body, a light curtain belt forming unit is mounted in the mounting groove, the light curtain belt forming unit comprises a mounting frame, a plurality of aspherical lenses and a plurality of LED light sources, the mounting frame is in a hollow shape, and the aspherical lenses are arranged on the mounting frame. The plurality of aspherical lenses and the plurality of LED light sources are distributed at intervals along the vertical direction of the mounting rack, and the plurality of aspherical lenses and the plurality of LED light sources are respectively arranged on two sides of the mounting rack in a manner of directly facing each other. According to the invention, the heat dissipation effect can be improved, and the light output stability is improved.

Description

Technical Field

[0001] The invention relates to the technical field of emergency control, and in particular to a light curtain belt forming device. Background Art

[0002] At present, in order to deal with emergencies on tunnels, bridges and other roads, it is necessary to block traffic flow to avoid traffic congestion on the accident road, which may cause difficulties in evacuating and rescuing people, or even cause secondary accidents.

[0003] In this regard, in the prior art, for example, the invention patent with publication number CN115565318A discloses a highway traffic emergency blocking light smoke screen forming control method based on the Tyndall effect. In this patent, a light screen is combined with a smoke screen to enhance the blocking effect. However, the light screen in this patent is formed by emitting a light source from a laser, which has the following disadvantages:

[0004] The laser uses a laser superimposed with a polarizer to emit light. The thermal stability of the laser light source is poor, the brightness has thermal attenuation, and the heat dissipation is difficult to handle. It is not suitable for hot outdoor environments. Specifically:

[0005] 1. Usually, the laser generates a laser beam. The laser beam generated by the laser is very concentrated, the heat dissipation pressure is very high, and the light source density is very high, which causes the laser to be under very high pressure. Then, when the laser is under very high pressure, a large thermal conductivity area and heat dissipation area are required to disperse the heat and ensure the effectiveness of the emitted light.

[0006] 2. Electronic devices are very sensitive to heat, and lasers are the most sensitive to heat. If the temperature rises by only a few degrees, the power loss will be very large. This will greatly limit the range of environmental conditions in which the laser can be used. For example, when used in summer, the light attenuation is serious and the expected effect cannot be achieved. Strong light cannot be seen, which affects the blocking effect. Although the heat can be dissipated by blowing air, the temperature of the wind is high in summer, and the heat dissipation effect is not good, resulting in insufficient light output power and low efficiency.

[0007] 3. In addition, the laser emitted by the laser is shot out directly, and its density is too high, which may cause photobiological damage when used, and there are potential safety factors. Summary of the invention

[0008] The invention provides a light curtain belt forming device, aiming to improve the heat dissipation effect and the stability of light output.

[0009] The present invention is achieved through the following technical scheme: a light curtain belt forming device, including a box body, a mounting groove is opened on one side of the box body, a light curtain belt forming unit is installed in the mounting groove, the light curtain belt forming unit includes a mounting frame, a plurality of aspheric lenses and a plurality of LED light sources, the mounting frame is hollow, the plurality of aspheric lenses and the plurality of LED light sources are vertically spaced apart along the mounting frame, and the plurality of aspheric lenses and the plurality of LED light sources are respectively arranged on both sides of the mounting frame facing each other.

[0010] Compared with the prior art, this solution has the following advantages and beneficial effects:

[0011] This solution uses multiple high-power density LED light sources to form multiple light sources that disperse light. The light emitted by the light source can be refracted and collimated into parallel light beams through aspheric lenses. Since this solution has multiple LED light sources and aspheric lenses, multiple LED light sources and multiple aspheric lenses can be arranged linearly, thereby realizing a continuous linear light curtain band formed by multi-point light emission. This solution uses linear dispersed light, and the light power density of a single LED light source is within the limit range required by photobiological safety laws and regulations, and will not cause photobiological damage during use; similar products on the market use laser polarizers, and the light power density is much higher than this product, which has potential safety factors.

[0012] In addition, the mounting frame of this scheme is used to install the aspheric lens and LED light source. Since the mounting frame is hollow, the hollow mounting frame can make the wind have convection in the entire light curtain belt forming unit, and the wind can circulate and dissipate heat inside; at the same time, the hollow structure can reduce the convection heat transfer capacity of the front of the light source, improve the stability of the light output, and the formed light curtain belt is stable and straight. When used in conjunction with the smoke forming equipment in the later stage, it can have a more effective blocking and warning effect. Similar products on the market use laser superimposed polarizers to emit light. The thermal stability of the laser light source is poor, the brightness has thermal attenuation, and the light output stability is poor.

[0013] Furthermore, the number of the plurality of LED light sources and the number of the plurality of aspheric lenses are the same, and the plurality of LED light sources are respectively arranged opposite to the plurality of aspheric lenses in sequence.

[0014] Beneficial effects: This solution can ensure that the light emitted by each LED light source is refracted by an aspheric lens and then collimated and emitted, the light output effect is straight and neat, and the formed light curtain belt is of high quality.

[0015] Furthermore, the mounting frame includes a mounting plate for mounting the aspheric lens and a heat dissipation base for mounting the LED light source, and an adjustment seat is connected between the heat dissipation base and the mounting plate.

[0016] Beneficial effects: In this solution, a hollow mounting frame is formed between the mounting plate, the heat dissipation base and the adjustment seat. The structure is simple and the air inside the mounting frame can form convection and heat dissipation effects, thereby ensuring stable light output and reducing light attenuation.

[0017] Furthermore, the mounting plate includes a lens fixing plate and a lens pressing plate, and the lens fixing plate and the lens pressing plate are both provided with through holes for mounting the aspheric lens, the mirror surface of the aspheric lens passes through the through holes, and one end of the aspheric lens is located between the lens fixing plate and the lens pressing plate, and the lens fixing plate and the lens pressing plate are connected to each other to fix the aspheric lens.

[0018] Beneficial effect: In this solution, the aspheric lens is fixed by a lens fixing plate and a lens pressing plate. This structure can realize the rapid installation and positioning of the aspheric lens without damaging the aspheric lens.

[0019] Furthermore, a plurality of the mounting frames are provided, and the plurality of the mounting frames are arranged in sequence along the vertical direction of the mounting groove, and the mounting plate and the heat dissipation base in each of the mounting frames are connected via the adjustment seat.

[0020] Beneficial effects: In this solution, the mounting frame is configured as multiple independent structures, which are then spliced ​​together to form a whole during installation, which is easier to process and install.

[0021] Furthermore, the mounting plates in the plurality of mounting frames are overlapped and spliced ​​with each other, and there are gaps between the heat dissipation bases in the plurality of mounting frames.

[0022] Beneficial effect: In this solution, the mounting plates overlap and splice each other to avoid light leakage, and there are gaps between the heat dissipation bases, which facilitates heat dissipation and ventilation inside the entire light curtain belt molding unit.

[0023] Furthermore, the adjustment seat is provided with an adjustment member capable of adjusting the distance between the mounting plate and the heat dissipation base.

[0024] Beneficial effect: In practice, if the aspheric lens and the LED light source are tilted and not directly facing each other, the emitted light sources will be staggered and disorderly, and the light curtain wall effect presented will be poor; while in this solution, the spacing between the mounting plate and the heat dissipation base is adjusted by an adjusting member, thereby adjusting the position between the aspheric lens and the LED light source, so that the aspheric lens and the LED light source can be parallel, so that each emitted beam of light is parallel, forming a parallel light curtain wall, which is convenient for the later coordination with the parallel ejected smoke wall, thereby improving the presentation effect of flexible blocking.

[0025] Furthermore, a protective door is slidably connected in the installation groove, and sliding the protective door can open or close the installation groove. A driving member for driving the protective door to open and close is installed on the box body.

[0026] Beneficial effect: In this solution, when the light curtain belt molding unit is started, the driving part opens the protective door, and then the light curtain belt molding unit is opened; when the light curtain belt molding unit function is turned off, the driving part closes the protective door. When the protective door is closed, it can ensure that the surface of the aspherical lens can be kept clean for a long time in any outdoor environment, and the projection light belt effect can be stably guaranteed during use.

[0027] Furthermore, the top wall of the mounting groove is connected to a slide rail, the top of the protective door is connected to a slider, and the slider slides in sliding cooperation with the slide rail; the bottom wall of the mounting groove is connected to a guide block, the bottom of the protective door slides in sliding cooperation with the guide block, a guide groove is provided on one side of the guide block along the sliding direction of the protective door, and a limiting rod is connected to the lower part of the protective door, one end of the limiting rod is inserted into the guide groove and can slide along the guide groove.

[0028] Beneficial effects: In this solution, the top wall and bottom wall of the installation groove are respectively connected to the slide rail and the guide block, so that the top and bottom of the protective door can slide and cooperate with the slide rail and the guide block respectively, thereby guiding the sliding of the protective door. In addition, in this solution, a guide groove is provided on one side of the guide block, and the limit rod connected to the lower part of the protective door can move in the guide groove during the sliding of the protective door. When the limit rod is against the two ends of the guide groove, it means that the protective door has moved into place. In this way, the limit rod can position the moving position of the protective door.

[0029] Furthermore, a plurality of guide steel balls are installed at intervals on the top of the guide block along the sliding direction of the protective door, a groove is provided at the bottom of the protective door, the groove cover at the bottom of the protective door slides with the guide block on the outside of the guide block, and the limit rod is fixed on one side of the groove of the protective door.

[0030] Beneficial effect: The setting of the guide steel balls in this solution can reduce the resistance when the protective door moves, thereby making the protective door move more smoothly. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the drawings:

[0032] Figure 1 It is a front view of an embodiment of a light curtain belt forming device of the present invention;

[0033] Figure 2 A side view of an embodiment of a light curtain belt forming device of the present invention;

[0034] Figure 3 A three-dimensional diagram of a light curtain belt forming unit in an embodiment of a light curtain belt forming device of the present invention;

[0035] Figure 4 It is a front view of a light curtain belt forming unit in an embodiment of a light curtain belt forming device of the present invention;

[0036] Figure 5 It is a partial three-dimensional diagram of a light curtain belt forming unit in an embodiment of a light curtain belt forming device of the present invention;

[0037] Figure 6 It is a partial stereoscopic diagram of a light curtain belt forming unit from another perspective in an embodiment of a light curtain belt forming device of the present invention;

[0038] Figure 7 for Figure 1 A partial enlarged view of point F in the middle.

[0039] Marks and corresponding parts names in the attached drawings:

[0040] Box body 1, aspheric lens 301, heat dissipation base 302, LED lamp 303, high thermal conductivity aluminum substrate 3033, adjustment seat 304, mounting plate 30, lens pressure plate 305, lens fixing plate 306, adjustment threaded hole 307, positioning hole 308, locking threaded hole 309, protective door 310, slide rail 311, slider 312, driving member 313, guide block 314, limit rod 315, guide groove 316, guide steel ball 317, rib plate 318. DETAILED DESCRIPTION

[0041] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with embodiments and drawings. The exemplary embodiments of the present invention and their description are only used to explain the present invention and are not intended to limit the present invention.

[0042] Example 1

[0043] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this embodiment 1 provides a light curtain belt forming device, including a box body 1, a mounting groove is opened on one side of the box body 1, and a light curtain belt forming unit is installed in the mounting groove. A light curtain belt forming device in the present invention can be used in conjunction with a smoke forming device in the later stage, so the position of the mounting groove can be on the same side as the side of the smoke forming device that emits smoke.

[0044] The light curtain belt forming unit includes a mounting frame, multiple aspheric lenses 301 and multiple LED light sources. The mounting frame is hollow, and the multiple aspheric lenses 301 and multiple LED light sources are vertically spaced along the mounting frame. The multiple aspheric lenses 301 and multiple LED light sources are respectively arranged on both sides of the mounting frame.

[0045] The number of the multiple LED light sources and the multiple aspheric lenses 301 is the same, and the multiple LED light sources are respectively arranged opposite to the multiple aspheric lenses 301 in sequence, and the multiple LED light sources and the multiple aspheric lenses 301 are arranged linearly, that is, the multiple LED light sources and the multiple aspheric lenses 301 are arranged vertically and linearly. The light emitted by each LED light source is refracted by the multiple aspheric lenses 301 and then emitted in a straight line.

[0046] Combination Figure 3 and Figure 4 As shown, the mounting frame includes a mounting plate 30 for mounting an aspheric lens 301 and a heat sink base 302 for mounting an LED light source, and an adjustment seat 304 is connected between the heat sink base 302 and the mounting plate 30, so that the entire mounting frame is hollowed out. In this embodiment, the LED light source includes an LED lamp 303 and a high thermal conductivity aluminum substrate 3033, the pins of the LED lamp 303 are welded on the high thermal conductivity aluminum substrate 3033, and the high thermal conductivity aluminum substrate 3033 is connected to the heat sink base 302.

[0047] The mounting plate 30 includes a lens fixing plate 306 and a lens pressing plate 305. Both the lens fixing plate 306 and the lens pressing plate 305 are provided with through holes for mounting the aspheric lens 301. The mirror surface of the aspheric lens 301 passes through the through holes, and one end of the aspheric lens 301 is located between the lens fixing plate 306 and the lens pressing plate 305. The lens fixing plate 306 and the lens pressing plate 305 are connected to each other to fix the aspheric lens 301. In this embodiment, the lens fixing plate 306 and the lens pressing plate 305 are connected and fixed by rivets or screws, so that the aspheric lens 301 is installed and fixed.

[0048] In this embodiment, there are four mounting frames, which are arranged in sequence along the vertical direction of the mounting groove. In each mounting frame, the mounting plate 30 and the heat dissipation base 302 are connected by an adjustment seat 304. In this embodiment, each mounting frame is provided with two groups of adjustment seats 304, which are respectively located at the upper part and the lower part of the mounting frame, and the number of each group of adjustment seats 304 is two, so that each mounting frame has four adjustment seats 304, and the four adjustment seats 304 are distributed in a rectangular array. In this embodiment, each mounting frame has four aspherical lenses 301 and four LED light sources.

[0049] like Figure 4As shown, the mounting plates 30 in the four mounting frames overlap and splice each other, so that there is no gap between the mounting plates 30, and there is a gap between the heat dissipation bases 302 in the four mounting frames, which can expand the heat dissipation flow space and path. Figure 2 As shown, a rib plate 318 is installed in the mounting groove, and a receiving cavity is formed between the rib plate 318 and the mounting groove. The mounting plate 30 is fixedly connected to the rib plate 318 in the mounting groove by screws. The aspheric lens 301 on the mounting plate 30 protrudes from the outside of the rib plate 318 to prevent the rib plate 318 from blocking the aspheric lens 301 and affecting the light output effect. The heat dissipation base 302 and the adjustment seat 304 are located in the receiving cavity formed between the rib plate 318 and the mounting groove.

[0050] Combination Figure 1 and Figure 3 As shown, in this embodiment, the width d formed by the multiple aspheric lenses 301 is 1440 mm, the light output diameter D of the aspheric lens 301 is 55-65 mm, the spacing d2 between the tangents of the nearest side of two adjacent aspheric lenses 301 is 28-38 mm, the center distance d1 between two adjacent aspheric lenses 301 is 88-98 mm, and the spacing between the aspheric lens 301 and the LED lamp 303 is 28-40 mm.

[0051] Preferably, the optimal size data in this embodiment is: the light output diameter D of the aspheric lens 301 is 60 mm, the spacing d2 between the tangents on the nearest side of two adjacent aspheric lenses 301 is 32 mm, the center distance d1 between two adjacent aspheric lenses 301 is 92 mm, and the spacing d3 between the aspheric lens 301 and the LED lamp 303 is 34 mm.

[0052] In this embodiment, a sealing strip is attached between the light curtain belt molding unit and the installation groove for sealing, thereby achieving a waterproof effect.

[0053] The specific implementation process is as follows: the light curtain belt forming unit in this embodiment includes a heat dissipation base 302, a high power density LED lamp 303, a high thermal conductivity aluminum substrate 3033, an adjustment seat 304, a lens pressure plate 305, a lens fixing plate 306, and an aspheric lens 301. The LED light source emits light that passes through the aspheric lens 301 and is collimated into a parallel light column. Multiple light sources and multiple aspheric lenses 301 are arranged linearly to form a light curtain belt with a width of 1440 mm.

[0054] In this embodiment, the high-power density LED lamp 303 is tightly connected with the high-thermal-conductivity aluminum substrate 3033 and the heat dissipation base 302 to form an efficient heat conduction path and conduct convection and radiation heat dissipation through the heat dissipation base 302; at the same time, a hollow structure is formed between the lens fixing plate 306, the lens pressing plate 305, and the adjustment seat 304 and the heat dissipation base 302, which can reduce the convection heat transfer capacity of the front of the light source and improve the stability of the light output. In this solution, the mounting frame is hollowed out and the temperature rises within 5°C during normal operation, and the product has good operating stability.

[0055] Example 2

[0056] The difference between this embodiment and embodiment 1 is that: Figure 5 and Figure 6 As shown, in this embodiment, the adjusting seat 304 is provided with an adjusting member capable of adjusting the distance between the mounting plate 30 and the heat dissipation base 302. Specifically, in this embodiment, the adjusting member includes an adjusting screw and a locking screw, and an adjusting threaded hole 307, a positioning hole 308 and a locking threaded hole 309 are sequentially provided at a position corresponding to each adjusting seat 304 on the heat dissipation base 302 and on the adjusting seat 304, and a positioning hole 308 directly facing the heat dissipation base 302 is also provided on the mounting plate 30.

[0057] The position of the adjusting seat 304 is positioned by inserting a positioning screw into the positioning hole 308 of the mounting plate 30, the adjusting seat 304 and the positioning hole 308 on the heat dissipation base 302. One end of the adjusting screw passes through the adjusting threaded hole 307 on the heat dissipation base 302 and the adjusting seat 304 in turn and then abuts against the mounting plate 30.

[0058] In each set of mounting frames, the height is adjusted by rotating the adjusting screw thread depth to support the mounting plate 30, and the four heat dissipation bases 302 form a four-point adjustment (four points determine a plane), thereby ensuring that the plane formed by the lens pressing plate 305 and the lens fixing plate 306 forms a parallel structure with the heat dissipation base 302 on which the LED light source is installed, thereby ensuring the parallelism of the LED light source and the aspheric lens 301; after the adjustment is completed, it is fixed by the locking threaded hole 309 and the matching locking screw to prevent loosening from affecting dimensional stability.

[0059] In this embodiment, the aperture sizes of the adjusting threaded hole 307 and the locking threaded hole 309 are different. This makes it easy to accurately distinguish the threaded holes used to adjust the spacing between the mounting plate 30 and the heat dissipation base 302 during use, so that the adjustment directions and positions of the four adjustment seats 304 in each group of mounting frames remain consistent, thereby ensuring the parallelism between the aspheric lens 301 and the LED light source.

[0060] Example 3

[0061] Combination Figure 1 , Figure 2 As shown, the difference between this embodiment and embodiment 1 is that a protective door 310 is slidably connected in the installation groove, and the sliding protective door 310 can open or close the installation groove, and a driving member 313 for driving the protective door 310 to open and close is installed on the box body 1.

[0062] In this embodiment, the driving member 313 is a hydraulic cylinder or an electric cylinder. The driving member 313 is mounted on the rib plate 318, and the output end of the driving member 313 passes through one side of the protective door 310. A pin hole is provided at the output end of the driving member 313, and a pin is inserted into the pin hole to limit and fix the output end of the driving member 313 and the protective door 310. The installation method of the output end of the driving member 313 and the protective door 310 is not limited to the above one, and the fixing method and structure can be selected according to actual needs.

[0063] like Figure 2 As shown, the top wall of the installation groove is connected to a slide rail 311, the top of the protective door 310 is connected to a slider 312 by screws, the slider 312 is slidably matched with the slide rail 311, the bottom wall of the installation groove is connected to a guide block 314, the bottom of the protective door 310 is slidably matched with the guide block 314, and then combined with Figure 1 and Figure 7 As shown, a guide groove 316 is provided on one side of the guide block 314 along the sliding direction of the protective door 310, and a limiting rod 315 is connected to the lower part of the protective door 310, one end of the limiting rod 315 is inserted into the guide groove 316 and can slide along the guide groove 316. In this embodiment, the limiting rod 315 is a screw, one end of the screw passes through the protective door 310 and is inserted into the guide groove 316. The limiting rod 315 can play a positioning role for the opening and closing states of the protective door 310. When the limiting rod 315 abuts against the left side of the guide groove 316, the protective door 310 is closed in place, and when the limiting rod 315 abuts against the right side of the guide groove 316, the protective door 310 is opened in place.

[0064] like Figure 7 As shown, in this embodiment, a plurality of guide steel balls 317 are installed at intervals on the top of the guide block 314 along the sliding direction of the protective door 310. In this embodiment, a plurality of recessed holes for installing the guide steel balls 317 are provided on the top of the guide block 314, and the guide steel balls 317 are embedded in the recessed holes; a groove is provided at the bottom of the protective door 310, and the groove cover at the bottom of the protective door 310 slides with the guide block 314 on the outside of the guide block 314, and the limiting rod 315 is fixed on one side of the groove of the protective door 310.

[0065] The protective door 310 structure and the light curtain belt forming unit in this embodiment are linked and controlled by the control circuit inside the equipment. When the function is started, the protective door 310 is first pushed open by the control drive 313, and then the light curtain belt forming unit is opened; when the function is turned off, the light curtain belt forming unit is closed, and then the drive 313 pulls the protective door 310 to close.

[0066] The protective door 310 is made of non-transparent material. The material of the protective door 310 in this embodiment can be made of stainless steel or other metal materials, so that the protective door 310 can not only protect the internal structure from dust, but also prevent the external sunlight from affecting the aspheric lens 301 when it is not in use. If the protective door 310 is made transparent, the external sunlight will pass through the protective door 310 to form a small light spot inside the installation groove, which is easy to burn the internal devices. In addition, the transparent protective door is usually made of glass or plastic. The glass protective door is difficult to shape, and the plastic and glass protective doors have poor weather resistance.

[0067] In this embodiment, the protection door 310 has a high protection level when closed, which can ensure that the surface of the aspheric lens 301 can be kept clean for a long time in any outdoor environment, and stably ensure the projection light band effect during use.

[0068] It should be noted that the above description of the disclosed embodiments enables professionals and technicians in the field to implement or use the present application. Various modifications to these embodiments will be apparent to professionals and technicians in the field, and the general principles defined herein can be implemented in other embodiments without departing from the scope of the present application. Therefore, the present application will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A light curtain belt forming device, comprising a box, characterized in that: A mounting groove is provided on one side of the box body, and a light curtain belt molding unit is installed in the mounting groove. The light curtain belt molding unit includes a mounting frame, a plurality of aspheric lenses and a plurality of LED light sources. The mounting frame is hollow, and the plurality of aspheric lenses and the plurality of LED light sources are vertically spaced apart along the mounting frame. The plurality of aspheric lenses and the plurality of LED light sources are respectively arranged on both sides of the mounting frame facing each other.

2. A light curtain belt forming device according to claim 1, characterized in that: The number of the plurality of LED light sources is the same as the number of the plurality of aspheric lenses, and the plurality of LED light sources are respectively arranged opposite to the plurality of aspheric lenses in sequence.

3. The light curtain belt forming device according to claim 1, characterized in that: The mounting frame comprises a mounting plate for mounting the aspheric lens and a heat dissipation base for mounting the LED light source, and an adjustment seat is connected between the heat dissipation base and the mounting plate.

4. The light curtain belt forming device according to claim 3, characterized in that: The mounting plate includes a lens fixing plate and a lens pressing plate, both of which are provided with through holes for mounting the aspheric lens, the mirror surface of the aspheric lens passes through the through holes, and one end of the aspheric lens is located between the lens fixing plate and the lens pressing plate, and the lens fixing plate and the lens pressing plate are connected to each other to fix the aspheric lens.

5. The light curtain belt forming device according to claim 3, characterized in that: There are a plurality of mounting frames, which are arranged in sequence along the vertical direction of the mounting groove, and the mounting plate and the heat dissipation base in each mounting frame are connected via the adjustment seat.

6. The light curtain belt forming device according to claim 5, characterized in that: The mounting plates in the plurality of mounting frames are overlapped and spliced ​​with each other, and there are gaps between the heat dissipation bases in the plurality of mounting frames.

7. A light curtain belt forming device according to any one of claims 3 to 6, characterized in that: The adjustment seat is provided with an adjustment member capable of adjusting the distance between the mounting plate and the heat dissipation base.

8. A light curtain belt forming device according to any one of claims 1 to 6, characterized in that: A protective door is slidably connected in the installation groove, and sliding the protective door can open or close the installation groove. A driving member for driving the protective door to open and close is installed on the box body.

9. The light curtain belt forming device according to claim 8, characterized in that: The top wall of the mounting groove is connected to a slide rail, and the top of the protective door is connected to a slider, and the slider slides in cooperation with the slide rail; the bottom wall of the mounting groove is connected to a guide block, and the bottom of the protective door slides in cooperation with the guide block, and a guide groove is provided on one side of the guide block along the sliding direction of the protective door, and a limiting rod is connected to the lower part of the protective door, and one end of the limiting rod is inserted into the guide groove and can slide along the guide groove.

10. The light curtain belt forming device according to claim 9, characterized in that: A plurality of guide steel balls are installed at intervals on the top of the guide block along the sliding direction of the protective door. A groove is provided at the bottom of the protective door. The groove cover at the bottom of the protective door slides with the guide block on the outside of the guide block, and the limit rod is fixed on one side of the groove of the protective door.

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