Mold opening equipment for photovoltaic profile multi-cavity mold

Abstract

The invention relates to the field of photovoltaic profile molds, and discloses mold opening equipment for a photovoltaic profile multi-cavity mold, the mold opening equipment comprises an upper mold and a lower mold, the lower mold is fixedly provided with a second mounting box, the second mounting box is rotatably connected with a positive and negative screw rod, and the positive and negative screw rod is in threaded connection with a second sliding frame; the two second sliding frames are rotationally connected with a second rotating plate and a first rotating plate correspondingly, a first mounting box is fixedly mounted on the upper mold, first sliding frames are slidably connected into the first mounting box, and the two first sliding frames are rotationally connected with the second rotating plate and the first rotating plate correspondingly. When the second sliding frame is possibly separated from the positive and negative screw rod, the parts can respond quickly to limit the rotation of the first rotating plate and the second rotating plate, so that the positions of the upper mold and the lower mold are fixed, and the upper mold and the lower mold are prevented from directly colliding with each other. Therefore, the risk that the die is damaged due to collision is greatly reduced, and the service life of the die is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of photovoltaic profile moulds, and more particularly to a mould opening device for a photovoltaic profile multi-cavity mould. Background Art

[0002] Multi-cavity molds for photovoltaic profiles are used in the photovoltaic industry to extrude and form photovoltaic profiles. These molds feature multiple, parallel cavity channels, enabling the simultaneous production of multiple photovoltaic profiles with the same or different cross-sectional shapes during a single extrusion process, significantly improving production efficiency. The cavity design must precisely match the profile's geometry, wall thickness distribution, and surface finish requirements. These molds are typically constructed from high-strength mold steel and must be resistant to wear, high temperatures, and deformation from extrusion to accommodate the high-pressure extrusion of molten metals such as aluminum alloys.

[0003] Multi-cavity molds require mold opening equipment when in use. This is because there are multiple parallel cavities inside them. The mold opening equipment is required to achieve precise separation and closing of the upper and lower molds to ensure that the profiles are smoothly demolded during production preparation and the cavities are fully aligned during mold closing to ensure the profile size accuracy. At the same time, the equipment must also use screw transmission, guide rail guidance and other mechanisms to ensure the parallelism and coaxiality of the mold opening and closing to avoid uneven metal flow.

[0004] Traditional mold opening equipment uses a screw to drive the mold to open and close. However, over long-term use, the threaded connection between the screw and the slide frame is prone to loosening due to wear and vibration, causing the slide frame to separate from the screw, causing the upper mold to fall and collide with the lower mold, causing mold damage and affecting profile accuracy. Frequent repairs and replacements are also required, increasing costs and downtime. Therefore, we designed a mold opening equipment for multi-cavity molds for photovoltaic profiles. Summary of the Invention

[0005] The present invention provides a mold opening device for multi-cavity molds for photovoltaic profiles, which solves the technical problem in the related art that when the screw drives the mold to open and close, the threaded connection between the screw and the sliding frame is easily loosened and separated due to wear and vibration after long-term use, causing the upper mold to fall and hit the lower mold, causing mold damage and affecting profile accuracy. Frequent repairs and replacements are also required, increasing costs and downtime.

[0006] The present invention provides a mold opening device for a multi-cavity mold for a photovoltaic profile, comprising an upper mold and a lower mold, wherein a second mounting box is fixedly mounted on the lower mold, a forward and reverse screw is rotatably connected to the second mounting box, a second sliding frame is threadedly connected to the forward and reverse screw, two second sliding frames are rotatably connected to a second rotating plate and a first rotating plate respectively, a first mounting box is fixedly mounted on the upper mold, a first sliding frame is slidably connected inside the first mounting box, and two first sliding frames are rotatably connected to the second rotating plate and the first rotating plate respectively;

[0007] a first positioning mechanism, rotatably mounted on the second rotating plate and the first rotating plate;

[0008] The second positioning mechanism is fixedly mounted on the second mounting box, and when the second sliding frame is disengaged from the forward and reverse screws, the first positioning mechanism is lifted and locked with the second rotating plate and the first rotating plate;

[0009] The driving mechanism is fixedly mounted on the lower mold and drives the upper mold and the lower mold to open and close during the working process of the upper mold and the lower mold.

[0010] As a further optimization scheme of the present invention, the driving mechanism includes a bent pipe, which is fixedly connected to the lower mold, and a motor is fixedly connected to the bent pipe. The power output shaft of the motor and the forward and reverse screws are fixedly connected to double-row drive wheels, and multiple double-row drive wheels are connected by a drive belt.

[0011] As a further optimization scheme of the present invention, the first positioning mechanism includes an air storage box, which is threadedly connected to the forward and reverse screws, and a pressure plate is slidably connected inside the air storage box. The pressure plate is connected to the air storage box through a second spring. An extension column is fixedly installed on the pressure plate, and the extension column is in contact with the second sliding frame.

[0012] As a further optimization scheme of the present invention, the first positioning mechanism also includes a positioning tube, which is fixedly connected to the second installation box, and a folding conveying tube is fixedly connected to the positioning tube, and the folding conveying tube is communicated with the air storage box. A hollow disk is rotatably installed inside the positioning tube, and a plurality of bent pipes are fixedly installed on the hollow disk.

[0013] As a further optimization solution of the present invention, the first positioning mechanism further includes a winding column, which is fixedly connected to the hollow disk. A pull rope is wound around the winding column, and a limit plate is fixedly installed on the pull rope.

[0014] As a further optimization scheme of the present invention, the first positioning mechanism also includes a fixed tube fixedly connected to the second mounting box, a sliding column is slidably connected inside the fixed tube, a first magnetic plate is fixedly connected to the top of the sliding column, an ordinary screw is rotatably connected to the fixed tube, a second slide is threadedly connected to the ordinary screw, the second slide is slidably connected to the fixed tube, a first spring is fixedly connected to the second slide, the first spring is fixedly connected to the first slide, and the limit plate is located between the sliding column and the first slide.

[0015] As a further optimization solution of the present invention, the second positioning mechanism includes a hollow rotating tube, which is rotatably connected to the first rotating plate and the second rotating plate. The first rotating plate and the second rotating plate are both provided with a plurality of limiting grooves.

[0016] As a further optimization scheme of the present invention, the second positioning mechanism also includes airbags, multiple airbags are fixedly connected to the hollow rotating tube, an air pipe is fixedly installed inside the hollow rotating tube, an extrusion rod is slidably connected inside the air pipe, the extrusion rod is connected to the air pipe through a third spring, and a first magnetic plate is fixedly installed on the extrusion rod.

[0017] As a further optimization scheme of the present invention, the second positioning mechanism also includes a limiting tube, and multiple limiting tubes are respectively fixedly connected to the first rotating plate and the second rotating plate. A positioning ring is fixedly installed inside the limiting tube, and a moving rod is slidably connected to the positioning ring. A second magnetic plate is fixedly installed at one end of the moving rod, and a limiting column is fixedly installed at the other end of the moving rod. The limiting column is connected to the positioning ring through a fourth spring.

[0018] As a further optimization solution of the present invention, a one-way valve is installed at the connection between the airbag and the gas pipe, and the one-way valve controls the flow of gas from the airbag to the inside of the gas pipe.

[0019] The beneficial effects of the present invention are:

[0020] 1. The mold opening device for multi-cavity molds for photovoltaic profiles disclosed herein utilizes a first positioning mechanism and a second positioning mechanism to rapidly limit the rotation of the first and second rotating plates when the second slide frame is in danger of separating from the forward and reverse screws, thereby securing the upper and lower molds and preventing them from directly impacting each other. This significantly reduces the risk of mold damage from impact, extends the mold's service life, and reduces production interruptions and repair costs caused by mold damage.

[0021] 2. The mold opening device for a multi-cavity mold for photovoltaic profiles described in the present invention can stably drive the forward and reverse screws through the drive mechanism's motor, double-row drive wheels, drive belt, and other components, thereby achieving precise opening and closing of the upper and lower molds. Simultaneously, the first and second positioning mechanisms can precisely control the position of the molds during normal operation, ensuring that the molds remain well aligned during production. This stable opening and closing action and precise position control help improve the production quality of photovoltaic profiles, reduce product defects caused by mold position deviations, and thus enhance the stability and reliability of the production process.

[0022] 3. The mold opening device for a multi-cavity mold for photovoltaic profiles described herein can adjust the position of the second slide plate by rotating a conventional screw, thereby varying the degree of compression of the first spring. This allows for varying support forces when the first spring is released, depending on actual production requirements. This adjustable support force design allows the mold opening device to better adapt to the production needs of photovoltaic profiles of varying specifications and materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 It is a schematic diagram of the internal structure of the first installation box and the second installation box of the present invention;

[0025] Figure 3 yes Figure 2 Enlarged view of point A in the middle;

[0026] Figure 4 This is a schematic diagram of the connection between the positioning tube and the hollow disk of the present invention;

[0027] Figure 5 yes Figure 2 Enlarged view of point B in the middle;

[0028] Figure 6 It is a schematic diagram of the internal structure of the first rotating plate and the second rotating plate of the present invention;

[0029] Figure 7 Schematic diagram of the internal structure of the limit tube of the present invention;

[0030] Figure 8 Schematic diagram of the internal structure of the gas pipeline of the present invention;

[0031] Figure 9 It is a structural schematic diagram of the driving mechanism of the present invention;

[0032] Figure 10 It is a schematic diagram of the internal structure of the gas storage box of the present invention.

[0033] Figure: 1, upper mold; 2, lower mold; 301, first mounting box; 302, first sliding frame; 303, first rotating plate; 304, forward and reverse screw; 305, second sliding frame; 306, second rotating plate; 307, second mounting box; 308, elbow; 309, hollow disk; 310, drive belt; 311, double-row drive wheel; 312, motor; 401, fixed tube; 402, air storage box; 403, winding column; 404, pull rope; 405, limit plate; 406, first slide plate ; 407, first spring; 408, second slide; 409, ordinary screw; 410, positioning tube; 411, folding conveying tube; 412, second spring; 413, pressure plate; 414, sliding column; 501, hollow rotating tube; 502, air bag; 503, first magnetic plate; 504, air supply pipe; 505, third spring; 506, limiting tube; 507, fourth spring; 508, limiting column; 509, positioning ring; 510, second magnetic plate; 511, moving rod; 512, extrusion rod. DETAILED DESCRIPTION

[0034] The subject matter described herein will now be discussed with reference to exemplary embodiments. It should be understood that these embodiments are discussed solely to enable those skilled in the art to better understand and implement the subject matter described herein, and that the functions and arrangements of the elements discussed may be varied without departing from the scope of this specification. Various examples may omit, substitute, or add various processes or components as needed. Furthermore, features described for some examples may be combined in other examples.

[0035] like Figures 1 to 10 As shown, a mold opening device for a photovoltaic profile multi-cavity mold according to an embodiment of the present invention includes an upper mold 1 and a lower mold 2. A second mounting box 307 is fixedly mounted on the lower mold 2, and a forward and reverse screw 304 is rotatably connected to the second mounting box 307. A second sliding frame 305 is threadedly connected to the forward and reverse screw 304. The two second sliding frames 305 are rotatably connected to the second rotating plate 306 and the first rotating plate 303 respectively. A first mounting box 301 is fixedly mounted on the upper mold 1, and a first sliding frame 302 is slidably connected inside the first mounting box 301. The two first sliding frames 302 are rotatably connected to the second rotating plate 306 and the first rotating plate 303 respectively.

[0036] The first positioning mechanism is rotatably mounted on the second rotating plate 306 and the first rotating plate 303;

[0037] The second positioning mechanism is fixedly mounted on the second mounting box 307. When the second sliding frame 305 is disengaged from the forward and reverse screws 304, the first positioning mechanism is lifted and locked with the second rotating plate 306 and the first rotating plate 303.

[0038] The driving mechanism is fixedly mounted on the lower mold 2 and drives the upper mold 1 and the lower mold 2 to open and close during the working process of the upper mold 1 and the lower mold 2.

[0039] It should be noted that when the upper mold 1 and the lower mold 2 are producing photovoltaic profiles, the driving mechanism is first used to drive the forward and reverse screws 304 to rotate, and the forward and reverse screws 304 will make the two second sliding frames 305 approach each other. Subsequently, the two second sliding frames 305 will drive the second rotating plate 306 and the first rotating plate 303 to rotate, so that the two first sliding frames 302 slide inside the first mounting box 301 and approach each other, so that the upper mold 1 and the lower mold 2 can be opened. After the upper mold 1 and the lower mold 2 are opened, the smelted aluminum alloy melt is poured into the upper mold 1 and the lower mold 2, and then the upper mold 1 and the lower mold 2 are merged through the driving mechanism, thereby completing the production of the photovoltaic profile.

[0040] like Figure 9As shown, the driving mechanism includes a curved pipe 308, which is fixedly connected to the lower mold 2, and a motor 312 is fixedly connected to the curved pipe 308. The power output shaft of the motor 312 and the forward and reverse screws 304 are both fixedly connected to double-row drive wheels 311, and multiple double-row drive wheels 311 are connected through a drive belt 310.

[0041] It should be noted that when the upper mold 1 and the lower mold 2 need to be used for work, the motor 312 is started first. The motor 312 will rotate the two forward and reverse screws 304 through the drive belt 310 and the double-row drive wheel 311. The rotation of the forward and reverse screws 304 will drive the second sliding frame 305, thereby allowing the upper mold 1 and the lower mold 2 to complete the opening and closing movement, and photovoltaic profiles can be produced.

[0042] like Figure 2 and Figure 10 As shown, the first positioning mechanism includes an air storage box 402, which is threadedly connected to the forward and reverse screws 304. A pressure plate 413 is slidably connected inside the air storage box 402. The pressure plate 413 is connected to the air storage box 402 through a second spring 412. An extension column is fixedly installed on the pressure plate 413, and the extension column is in contact with the second sliding frame 305.

[0043] When the second slide 305 is in the state of being threadedly connected to the forward and reverse screw 304, the gas storage box 402 will also move synchronously when the second slide 305 moves. However, the second slide 305 will not always be threadedly connected to the forward and reverse screw 304. Due to the action of the upper mold 1, when the upper mold 1 and the lower mold 2 are constantly opening and closing, the second slide 305 is likely to separate from the forward and reverse screw 304. At this time, the upper mold 1 will descend and fit together with the lower mold 2, causing damage. In this process, the second slide 305 will squeeze the extension column, and the extension column will squeeze the pressure plate 413, causing the pressure plate 413 to discharge the gas inside the gas storage box 402. The discharged gas will act on other components of the first adjusting mechanism, causing it to act on the second adjusting mechanism, so that the second rotating plate 306 and the first rotating plate 303 cannot rotate, so that the upper mold 1 will not be able to move down, and the upper mold 1 and the lower mold 2 will not collide directly, thereby causing damage.

[0044] like Figure 3 and Figure 4 and Figure 5 As shown, the first positioning mechanism also includes a positioning tube 410, which is fixedly connected to the second installation box 307. A folding conveying tube 411 is fixedly connected to the positioning tube 410, and the folding conveying tube 411 is connected to the air storage box 402. A hollow disk 309 is rotatably installed inside the positioning tube 410, and a plurality of bent pipes 308 are fixedly installed on the hollow disk 309.

[0045] The first positioning mechanism further includes a winding column 403 , which is fixedly connected to the hollow disk 309 . A pull rope 404 is wound around the winding column 403 , and a limit plate 405 is fixedly mounted on the pull rope 404 .

[0046] The first positioning mechanism also includes a fixed tube 401 fixedly connected to the second mounting box 307, a sliding column 414 is slidably connected inside the fixed tube 401, a first magnetic plate 503 is fixedly connected to the top of the sliding column 414, an ordinary screw 409 is rotatably connected to the fixed tube 401, a second slide 408 is threadedly connected to the ordinary screw 409, the second slide 408 is slidably connected to the fixed tube 401, a first spring 407 is fixedly connected to the second slide 408, the first spring 407 is fixedly connected to the first slide 406, and the limiting plate 405 is located between the sliding column 414 and the first slide 406.

[0047] It should be noted that when the extension column is squeezed, the gas in the gas storage box 402 enters the interior of the positioning tube 410 through the folded delivery tube 411, and then enters the hollow disk 309 through the positioning tube 410, and finally is discharged from the bend 308 on the hollow disk 309. Due to the setting of the bend 308, the reaction force of the gas can make the winding column 403 rotate, so that the winding column 403 is wound around the pull rope 404, which can pull the limit plate 405, so that the limit plate 405 does not limit the sliding column 414 and the first slide 406, thereby the first spring 403 is pulled. 07 will be released, and the release of the first spring 407 will drive the limit plate 405 to move upward, so that the limit plate 405 directly acts on the sliding column 414, so that the sliding column 414 will move upward, and the upward movement of the sliding column 414 will drive the first magnetic plate 503 to move upward, so that there is a preliminary support for the second positioning mechanism. Since the second positioning mechanism is limited, the second rotating plate 306 and the first rotating plate 303 will also not be able to deform, so that the upper mold 1 and the lower mold 2 cannot be merged, effectively preventing the upper mold 1 from falling directly and colliding with the lower mold 2 to cause damage.

[0048] By rotating the ordinary screw 409, the second slide plate 408 can be continuously moved upward, so that the compression degree of the first spring 407 will continue to increase. Therefore, when the first spring 407 is released, the force that can drive the sliding column 414 to move upward will also become greater, which can provide greater force to support the second positioning mechanism, so that the upper mold 1 and the lower mold 2 will not directly collide and merge. The supporting force can be effectively adjusted according to needs.

[0049] like Figures 5 to 7 As shown, the second positioning mechanism includes a hollow rotating tube 501, which is rotatably connected to the first rotating plate 303 and the second rotating plate 306. A plurality of limiting grooves are provided on the first rotating plate 303 and the second rotating plate 306.

[0050] The second positioning mechanism also includes airbags 502, and multiple airbags 502 are fixedly connected to the hollow rotating tube 501. An air supply pipe 504 is fixedly installed inside the hollow rotating tube 501. An extrusion rod 512 is slidably connected inside the air supply pipe 504. The extrusion rod 512 is connected to the air supply pipe 504 through a third spring 505. A first magnetic plate 503 is fixedly installed on the extrusion rod 512.

[0051] The second positioning mechanism also includes a limiting tube 506, and multiple limiting tubes 506 are fixedly connected to the first rotating plate 303 and the second rotating plate 306 respectively. A positioning ring 509 is fixedly installed inside the limiting tube 506, and a moving rod 511 is slidably connected to the positioning ring 509. A second magnetic plate 510 is fixedly installed at one end of the moving rod 511, and a limiting column 508 is fixedly installed at the other end of the moving rod 511. The limiting column 508 is connected to the positioning ring 509 through a fourth spring 507.

[0052] A one-way valve is installed at the connection between the airbag 502 and the gas pipe 504 , and the one-way valve controls the flow of gas from the airbag 502 to the inside of the gas pipe 504 .

[0053] It should be noted that when the sliding column 414 moves upward, it will squeeze the airbag 502, causing the gas in the airbag 502 to enter the gas pipe 504. Due to the entry of the gas, the gas will squeeze the extrusion rod 512, causing the extrusion rod 512 to drive the first magnetic plate 503 to move, so that the first magnetic plate 503 will move to the second magnetic plate 510, causing the second magnetic plate 510 to drive the moving rod 511 to move, which will also cause the limiting column 508 to move. The movement of the limiting column 508 will be plugged into the corresponding limiting grooves on the first rotating plate 303 and the second rotating plate 306, so that the first rotating plate 303 and the second rotating plate 306 cannot rotate, forming a fixed structure, which can directly support the upper mold 1 and the lower mold 2, making the upper mold 1 and the lower mold 2 unable to change, greatly protecting the upper mold 1 and the lower mold 2 and avoiding direct collision between the two.

[0054] Working Principle: When the motor 312 is started, its power output shaft rotates the double-row drive wheel 311. This, in turn, rotates the other double-row drive wheel 311 via the drive belt 310, thereby rotating the forward and reverse screws 304. The rotation of the forward and reverse screws 304 causes the two second slides 305 to move closer to or further away from each other on the forward and reverse screws 304. The second slides 305 rotate the second rotating plate 306 and the first rotating plate 303, which in turn pushes the first slide 302 to slide within the first mounting box 301, opening and closing the upper mold 1 and lower mold 2. This completes the opening and closing of the upper and lower molds 1 and 2, allowing for the production of photovoltaic profiles.

[0055] When the second sliding frame 305 is about to separate from the forward and reverse screws 304, the second sliding frame 305 presses the extension column, which drives the pressure plate 413 to slide within the gas storage box 402, compressing the second spring 412. The gas in the gas storage box 402 is pressed into the positioning tube 410 through the folded delivery tube 411, then enters the hollow disk 309 and is discharged through the curved tube 308 on the hollow disk 309. The reaction force of the gas causes the hollow disk 309 to rotate, driving the winding column 403 to rotate and wind the pull rope 404. The pull rope 404 pulls the limit plate 405, releasing the limit on the sliding column 414 and the first slide 406. The first spring 407 is released, pushing the first slide 406 upward, driving the sliding column 414 and the first magnetic plate 503 upward. Rotating the ordinary screw 409 can adjust the position of the second slide 408, change the compression degree of the first spring 407, and thus adjust the force that pushes the sliding column 414 upward when released; provide preliminary support for the second positioning mechanism, limit the rotation of the second rotating plate 306 and the first rotating plate 303, and prevent the upper mold 1 from moving downward and directly colliding with the lower mold 2 and being damaged.

[0056] The sliding column 414 moves upward to squeeze the airbag 502, and the gas in the airbag 502 enters the air pipe 504 through the one-way valve, pushing the squeezing rod 512 to slide in the air pipe 504, compressing the third spring 505, and the squeezing rod 512 drives the first magnetic plate 503 to move close to the second magnetic plate 510, and uses magnetic attraction to make the second magnetic plate 510 drive the moving rod 511 to move, and the moving rod 511 drives the limiting column 508 to move so that it is inserted into the limiting grooves on the first rotating plate 303 and the second rotating plate 306; making the first rotating plate 303 and the second rotating plate 306 unable to rotate, forming a fixed structure to support the upper mold 1 and the lower mold 2 to prevent the two from colliding.

[0057] The above describes an embodiment of the present invention, but this embodiment is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Ordinary technicians in this field can also make many forms based on the inspiration of this embodiment, all of which are protected by this embodiment.

Claims

1. A mold opening device for a photovoltaic profile multi-cavity mold, comprising an upper mold (1) and a lower mold (2), characterized in that: A second mounting box (307) is fixedly mounted on the lower mold (2), a forward and reverse screw (304) is rotatably connected to the second mounting box (307), a second sliding frame (305) is threadedly connected to the forward and reverse screw (304), and two second sliding frames (305) are rotatably connected to a second rotating plate (306) and a first rotating plate (303), respectively; a first mounting box (301) is fixedly mounted on the upper mold (1), a first sliding frame (302) is slidably connected inside the first mounting box (301), and the two first sliding frames (302) are rotatably connected to the second rotating plate (306) and the first rotating plate (303), respectively; A first positioning mechanism is rotatably mounted on the second rotating plate (306) and the first rotating plate (303); The second positioning mechanism is fixedly mounted on the second mounting box (307), and when the second sliding frame (305) is separated from the forward and reverse screws (304), the first positioning mechanism is lifted and the first positioning mechanism is locked with the second rotating plate (306) and the first rotating plate (303); The driving mechanism is fixedly mounted on the lower mold (2) and drives the upper mold (1) and the lower mold (2) to open and close during the operation of the upper mold (1) and the lower mold (2).

2. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 1, characterized in that: The driving mechanism comprises a curved tube (308), the curved tube (308) being fixedly connected to the lower mold (2), a motor (312) being fixedly connected to the curved tube (308), a power output shaft of the motor (312) and the forward and reverse screws (304) being fixedly connected to double-row driving wheels (311), and a plurality of the double-row driving wheels (311) being connected via a driving belt (310).

3. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 2, characterized in that: The first positioning mechanism includes an air storage box (402), the air storage box (402) is threadedly connected to the forward and reverse screws (304), a pressure plate (413) is slidably connected inside the air storage box (402), and the pressure plate (413) is connected to the air storage box (402) via a second spring (412). An extension column is fixedly installed on the pressure plate (413), and the extension column is in contact with the second sliding frame (305).

4. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 3, characterized in that: The first positioning mechanism further comprises a positioning tube (410), the positioning tube (410) being fixedly connected to the second installation box (307), a folding delivery tube (411) being fixedly connected to the positioning tube (410), the folding delivery tube (411) being communicated with the gas storage box (402), a hollow disk (309) being rotatably mounted inside the positioning tube (410), and a plurality of curved tubes (308) being fixedly mounted on the hollow disk (309).

5. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 4, characterized in that: The first positioning mechanism further comprises a winding column (403), the winding column (403) being fixedly connected to the hollow disk (309), a pull rope (404) being wound around the winding column (403), and a limit plate (405) being fixedly mounted on the pull rope (404).

6. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 5, characterized in that: The first positioning mechanism also includes a fixed tube (401) fixedly connected to the second installation box (307), a sliding column (414) is slidably connected inside the fixed tube (401), a first magnetic plate (503) is fixedly connected to the top of the sliding column (414), a common screw (409) is rotatably connected to the fixed tube (401), a second slide plate (408) is threadedly connected to the common screw (409), the second slide plate (408) is slidably connected to the fixed tube (401), a first spring (407) is fixedly connected to the second slide plate (408), the first spring (407) is fixedly connected to the first slide plate (406), and the limiting plate (405) is located between the sliding column (414) and the first slide plate (406).

7. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 6, characterized in that: The second positioning mechanism comprises a hollow rotating tube (501), wherein the hollow rotating tube (501) is rotatably connected to the first rotating plate (303) and the second rotating plate (306), and a plurality of limiting grooves are provided on the first rotating plate (303) and the second rotating plate (306).

8. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 7, characterized in that: The second positioning mechanism further comprises an airbag (502), a plurality of the airbags (502) are fixedly connected to the hollow rotating tube (501), an air pipe (504) is fixedly installed inside the hollow rotating tube (501), an extrusion rod (512) is slidably connected inside the air pipe (504), the extrusion rod (512) is connected to the air pipe (504) via a third spring (505), and a first magnetic plate (503) is fixedly installed on the extrusion rod (512).

9. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 8, characterized in that: The second positioning mechanism also includes a limiting tube (506), and a plurality of the limiting tubes (506) are fixedly connected to the first rotating plate (303) and the second rotating plate (306) respectively. A positioning ring (509) is fixedly installed inside the limiting tube (506), and a moving rod (511) is slidably connected to the positioning ring (509). A second magnetic plate (510) is fixedly installed at one end of the moving rod (511), and a limiting column (508) is fixedly installed at the other end of the moving rod (511). The limiting column (508) is connected to the positioning ring (509) through a fourth spring (507).

10. The mold opening device for a photovoltaic profile multi-cavity mold according to claim 9, characterized in that: A one-way valve is installed at the connection between the air bag (502) and the gas pipe (504), and the one-way valve controls the flow of gas from the air bag (502) to the inside of the gas pipe (504).

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