Side opening structure used in metal mold and UV curing method

Abstract

A second rotating shaft is vertically arranged, a heat insulation plate is in a disc shape and swings obliquely by 60-180 degrees through the second rotating shaft, an opening is formed in the lower end of the heat insulation plate, a rail is arranged on the inner wall, close to a silica gel piece, of a side pipeline, the inner side of the rail is slidably connected with a sliding column, and the sliding column is provided with a sliding hole. A first rotating shaft is hinged to one side of the sliding column, a swing arm is connected to the side, close to the heat insulation plate, of the first rotating shaft in a swinging mode, the track inclines by 45 degrees, the upwards-inclined end of the track is close to one side of the heat insulation plate, and the track and the sliding column are arranged in a matched mode. At the moment, the side plate slides on one side of the guide plate from bottom to top through the sliding block under extrusion of the UV light irradiation head, the weight of the guide plate on one side of the third rotating shaft is gradually increased along with the step-by-step sliding of the side plate at one end of the guide plate from bottom to top, and the guide plate can drive the sealing plate to swing through the third rotating shaft at the moment.

Description

Technical Field

[0001] The invention relates to the technical field of plastic molding or connection, in particular to a side opening structure used in a metal mold and a UV curing method. Background Art

[0002] A metal mold is a mold used to manufacture castings using metal materials. Molten raw materials are poured into the mold under gravity to obtain the casting. By setting a side opening structure at the corresponding dispensing position of the metal mold, UV light is allowed to pass through the side opening structure to complete the UV curing process. UV light curing refers to the curing conditions or requirements for coatings, inks, adhesives or other potting sealants that need to be cured by ultraviolet light. This is a technical inspiration for metal molds. The following problems were found in the research of metal molds: Since the silicone parts are installed inside the side opening structure of the metal mold, and the side opening structure is connected to the inside of the casting trough, the silicone parts corresponding to the side opening structure of the metal mold are easily deformed due to heat after the raw material overflows, resulting in the bracket size not meeting the quality requirements after the product is molded. The side opening structure cannot prevent the raw material from overflowing after UV light exposure, and thus cannot prevent the raw material from overflowing to the side of the silicone parts. At present, CN202111521438.0 in the prior art discloses a pultrusion die capable of detecting curing conditions. The invention provides a detection portion on the upper die. When the curing condition of the die needs to be detected, the detection portion can be removed, and then, in conjunction with a temperature detection device, surface detection can be performed on multiple positions of the die. At the same time, the die forming condition can be visually observed, and the curing condition of the die can be more accurately and better understood. The disassembly and installation of the detection portion are both simple and convenient, and the positioning piece is provided to ensure a stable installation. The present invention can mainly solve the problem that the side opening structure cannot prevent the raw material from overflowing after being irradiated with UV light, and further cannot prevent the raw material from overflowing to one side of the silicone component. Summary of the Invention

[0003] The purpose of the present invention is to provide a side opening structure for the interior of a metal mold and a UV curing method.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a side opening structure for the interior of a metal mold and a UV curing method, comprising an upper mold and a lower mold, the upper mold and the lower mold being vertically interlocked, a side pipe running through the side of the lower mold, and a silicone member surrounding the inner wall of one end of the side pipe away from the lower mold.

[0005] As a further solution of the present invention: the upper mold and the lower mold are installed by bolt interlocking, a casting groove is opened inside the lower mold, and the side pipe is connected to the casting groove.

[0006] As a further solution of the present invention: the interior of the side pipe passes through the UV light irradiation head, and the side pipe assists the UV light irradiation to the interior of the lower mold casting trough.

[0007] As a further solution of the present invention: the upper end of the inside of the side pipe is hinged with a second rotating shaft, and the lower end of the second rotating shaft is rotatably connected to a heat insulation board.

[0008] As a further solution of the present invention: the second rotating shaft is arranged vertically, the heat insulation board is disc-shaped, the heat insulation board is tilted 60-180 degrees and swung by the second rotating shaft, and an opening is provided at the lower end of the heat insulation board.

[0009] As a further solution of the present invention: a track is provided on the inner wall of the side pipe close to the silicone part, the inner side of the track is slidably connected to a sliding column, one side of the sliding column is hinged with a rotating shaft 1, and the side of the rotating shaft 1 close to the insulation board is swingably connected to a swing arm.

[0010] As a further solution of the present invention: the track is inclined at 45 degrees, with one end of the track tilted upward close to one side of the insulation board, and the track and the sliding column are arranged in a matching manner.

[0011] As a further solution of the present invention: one end of the swing arm is located on one side of the heat insulation board, and the swing arm swings horizontally and tiltedly through the first rotating shaft.

[0012] As a further solution of the present invention: the middle part of the insulation board is hinged with a rotating shaft three, the upper end of the rotating shaft three is swingably connected to a guide plate, the lower end of the rotating shaft three is swingably connected to a sealing plate, the guide plate is slidingly connected to a slider near the inlet of the side pipe, and the end of the slider is provided with a side plate.

[0013] As a further solution of the present invention: the guide plate and the sealing plate are both swung in a vertical direction via a third rotating shaft.

[0014] As a further solution of the present invention: a slide groove is provided on the side of the guide plate, and the slider slides vertically inside the slide groove. The weight of the guide plate is 100-200g less than the weight of the insulation board, and the slide groove of the guide plate is arranged vertically.

[0015] As a further solution of the present invention: the side plate is triangular in shape, and the side plate slides on one side of the guide plate through a slider, and the side plate and the slider are arranged in a matching manner.

[0016] As a further embodiment of the present invention, the curing method comprises the following steps: S1: Pour the raw material into the casting trough of the lower mold, then the upper mold and the lower mold are fixed together by bolts, and the raw material is formed inside the lower mold; S2: The UV light irradiation head is embedded in the inside of the side pipe and squeezed to one side of the heat insulation board. The heat insulation board tilts and swings through the second rotating shaft. At this time, the UV light irradiation head irradiates UV light through the side pipe to the inside of the lower mold. S3: When the UV light irradiation head is embedded and squeezed into one side of the heat insulation board, the UV light irradiation head is first squeezed into the lower end of the side plate. At this time, the side plate slides from bottom to top on one side of the guide plate through the slider due to the squeezing of the UV light irradiation head; S4: As the side plate at one end of the guide plate gradually slides from bottom to top, the weight of the guide plate on the side of the rotating shaft 3 gradually increases. At this time, the guide plate can drive the sealing plate to swing through the rotating shaft 3, and the UV light irradiation head irradiates the interior of the lower mold through the opening of the heat insulation plate; S5: When the heat shield swings at an angle, the heat shield drives the swing arm to slide synchronously. The swing arm drives the sliding post to slide on the inner side of the track through the first rotating shaft. At the same time, the swing arm swings horizontally at an angle through the first rotating shaft. At this time, the sliding post slides from bottom to top on the inner side of the track. S6: When the UV light irradiation head cannot squeeze to one side of the heat insulation board, the sliding column uses its own weight to slide back to the inner side of the track. When the sliding column slides back to its position, it can drive the heat insulation board to return to its position through the first rotating shaft and the swing arm. The heat insulation board swings back to its position through the second rotating shaft. At this time, the heat insulation board re-seals the inside of the opposite side pipe; S7: After the heat shield returns to its original position, when the raw material overflows from the lower die, the raw material impacts one side of the sealing plate. Since the sealing plate is at the lower end of the rotating shaft 3, the sealing plate cannot swing through the rotating shaft 3 at this time. S8: The inside of the side pipe is penetrated by UV light, and the UV light completes the UV curing process of the glue inside the lower mold through the side pipe. Beneficial effects

[0017] 1. The heat insulation plate is located inside the side pipe, which can seal the inside of the side pipe. This prevents the side pipe from penetrating the inside of the lower mold, causing the raw material inside the lower mold to overflow to the side of the silicone part, thereby preventing the silicone part from deforming after being heated. The UV light irradiation head is embedded in the inside of the side pipe and squeezed to one side of the heat insulation board. The heat insulation board is tilted and swung by the second rotating shaft. At this time, the UV light irradiation head irradiates UV light through the side pipe to the inside of the lower mold. 2. When the heat shield is not tilted and swinging, the sliding post at one end of the swing arm is at the downwardly tilted end of the track. When the heat shield is tilted and swinging, the heat shield drives the swing arm to slide synchronously. The swing arm drives the sliding post to slide on the inner side of the track through the first rotating shaft. At the same time, the swing arm swings horizontally through the first rotating shaft. At this time, the sliding post slides from bottom to top on the inner side of the track. 3. Through the sliding of the sliding column, when the UV light irradiation head cannot squeeze to one side of the heat insulation board, the sliding column uses its own weight to slide back to the inner side of the track. When the sliding column slides back to its position, it can drive the heat insulation board to return to its position through the first rotating shaft and the swing arm. The heat insulation board swings back through the second rotating shaft. At this time, the heat insulation board re-seals the inside of the side pipe, preventing the UV light irradiation head from irradiating the inside of the lower mold. Part of the raw material passes through the gap between the heat insulation board and the side pipe and enters the end of the side pipe equipped with the silicone member; 4. When the UV light irradiation head is embedded and squeezed into one side of the heat insulation board, the UV light irradiation head first squeezes into the lower end of the side plate. At this time, the side plate slides from bottom to top on one side of the guide plate through the slider due to the squeezing of the UV light irradiation head. As the side plate at one end of the guide plate gradually slides from bottom to top, the weight of the guide plate on the side of the rotating shaft 3 gradually increases. At this time, the guide plate can drive the sealing plate to swing through the rotating shaft 3, assisting the UV light irradiation head to irradiate the interior of the lower mold through the opening of the heat insulation board. 5. After the heat insulation plate returns to its position, when the raw material inside the lower mold overflows, the raw material impacts one side of the sealing plate. Since the sealing plate is at the lower end of the rotating shaft three, the sealing plate cannot swing through the rotating shaft three at this time, so that this side opening structure can prevent the silicone parts from being deformed due to high temperature due to the overflow of raw materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0019] Figure 2 It is a schematic diagram of the local structure of the mold of the present invention.

[0020] Figure 3 It is a schematic diagram of the side pipe structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the side pipe explosion of the present invention.

[0022] Figure 5 It is a schematic cross-sectional view of the side pipe of the present invention.

[0023] Figure 6 For the present invention Figure 5 Schematic diagram of the middle insulation board after rotation.

[0024] Figure 7 Schematic diagram of the explosion of the heat insulation board assembly of the present invention.

[0025] Figure 8 Schematic diagram of the heat insulation board assembly of the present invention.

[0026] Figure 9 It is a side view of the heat insulation board assembly of the present invention.

[0027] Figure 1-9Middle: 1-upper mold, 101-lower mold, 102-side pipe, 103-silicone part, 2-track, 201-sliding column, 202-rotating shaft 1, 203-swing arm, 3-heat insulation board, 301-rotating shaft 2, 302-rotating shaft 3, 303-guide plate, 304-sealing plate, 4-slider, 401-side plate. DETAILED DESCRIPTION

[0028] See also Figure 1-9 In the embodiment of the present invention, Example 1: A side opening structure for use in a metal mold and a UV curing method thereof, comprising an upper mold 1 and a lower mold 101, wherein the upper mold 1 and the lower mold 101 are vertically interlocked, a side pipe 102 extending through the side of the lower mold 101, and a silicone member 103 surrounding the inner wall of the end of the side pipe 102 away from the lower mold 101; Among them: the upper mold 1 and the lower mold 101 are installed by bolts, the lower mold 101 has a casting groove opened inside, and the side pipe 102 is connected to the casting groove; The interior of the casting groove of the lower mold 101 is filled with a coating, ink, adhesive or other potting sealant that needs to be cured by UV light; The side pipe 102 is provided, and the inside of the side pipe 102 passes through the UV light irradiation head, and the side pipe 102 assists the UV light irradiation to the inside of the casting trough of the lower mold 101; The UV light irradiation head is connected to the circuit of the ultraviolet curing equipment, and the UV light irradiation head generates UV light; By placing the silicone member 103 at the inlet of the side pipe 102 , the silicone member 103 can be used to increase the friction between the UV light irradiation head and the side pipe 102 ; The raw material is poured into the casting groove of the lower mold 101, and then the upper mold 1 and the lower mold 101 are fixed together by bolts. The raw material is formed inside the lower mold 101, and the inside of the side pipe 102 is penetrated by UV light. The UV light passes through the side pipe 102 to complete the UV curing process of the glue inside the lower mold 101; Example 2: Refer to the attached manual Figure 4-9 It can be seen that the difference between Example 2 and Example 1 is that the upper end of the inner side pipe 102 is hinged with a second rotating shaft 301, and the lower end of the second rotating shaft 301 is rotatably connected to the heat insulation board 3; Wherein: the second rotating shaft 301, the second rotating shaft 301 is arranged vertically, the heat insulation board 3 is disc-shaped, the heat insulation board 3 is tilted 60-180 degrees through the second rotating shaft 301, and the lower end of the heat insulation board 3 is provided with an opening; The lower end of the heat insulation board 3 is provided with an opening in a semicircular shape. Figure 7 As shown; The heat insulation board 3 is made of high temperature resistant material, such as ceramic fiber; The heat insulation plate 3 is located inside the side pipe 102, so that the heat insulation plate 3 can seal the inside of the side pipe 102, thereby preventing the side pipe 102 from penetrating the inside of the lower mold 101, causing the raw material inside the lower mold 101 to overflow to the side of the silicone member 103, thereby preventing the silicone member 103 from being deformed after being heated. The UV light irradiation head is embedded in the inside of the side pipe 102 and squeezed to one side of the heat insulation board 3. The heat insulation board 3 is tilted and swung by the second rotating shaft 301. At this time, the UV light irradiation head irradiates UV light through the side pipe 102 to the inside of the lower mold 101. Example 3: Refer to the attached manual Figure 2-7 It can be seen that the difference between Example 3 and Example 1-2 is that a track 2 is provided on the inner wall of the side pipe 102 near the silicone member 103, and a sliding column 201 is slidably connected to the inner side of the track 2. A rotating shaft 202 is hinged on one side of the sliding column 201, and a swing arm 203 is swingably connected to the side of the rotating shaft 202 near the insulation board 3. Among them: track 2, track 2 is inclined at 45 degrees, the upwardly inclined end of track 2 is close to the side of the insulation board 3, and the track 2 and the sliding column 201 are matched; The upward tilted end of the track 2 is close to the side of the insulation board 3. Therefore, when the insulation board 3 is not tilted and swung, the sliding column 201 at one end of the swing arm 203 is at the downward tilted end of the track 2. Figure 5 As shown; A rotating shaft 202 and a swing arm 203, one end of the swing arm 203 is located on one side of the heat insulation board 3, and the swing arm 203 swings horizontally and tiltedly through the rotating shaft 202; The swing arm 203 swings horizontally through the shaft 1 202, so that when the heat insulation board 3 tilts and rotates, the swing arm 203 drives the sliding column 201 to slide on the inner side of the track 2 through the shaft 1 202. Figure 6 As shown; When the heat shield 3 is not tilted and swung, the sliding post 201 at one end of the swing arm 203 is at the downwardly tilted end of the track 2. When the heat shield 3 is tilted and swung, the heat shield 3 drives the swing arm 203 to slide synchronously. The swing arm 203 drives the sliding post 201 to slide on the inner side of the track 2 through the rotating shaft 1 202. At the same time, the swing arm 203 swings horizontally and tilted through the rotating shaft 1 202. At this time, the sliding post 201 slides from bottom to top on the inner side of the track 2. By sliding the sliding column 201, when the UV light irradiation head cannot squeeze to one side of the heat insulation board 3, the sliding column 201 uses its own weight to slide back to its original position on the inner side of the track 2. When the sliding column 201 slides back to its original position, it can drive the heat insulation board 3 to return to its original position through the rotating shaft 1 202 and the swing arm 203. The heat insulation board 3 swings back through the rotating shaft 2 301. At this time, the heat insulation board 3 is sealed against the inside of the side pipe 102 again, preventing the UV light irradiation head from irradiating the inside of the lower mold 101. Part of the raw materials pass through the gap between the heat insulation board 3 and the side pipe 102 and enter the end of the side pipe 102 provided with the silicone member 103; Example 4: See the attached manual Figure 5-9 It can be seen that the difference between Example 4 and Examples 1-3 is that a third rotating shaft 302 is hingedly connected to the middle portion of the heat insulation plate 3, the upper end of the third rotating shaft 302 is swingably connected to the guide plate 303, and the lower end of the third rotating shaft 302 is swingably connected to the sealing plate 304. The guide plate 303 is slidably connected to the slider 4 near the inlet of the side pipe 102, and the end of the slider 4 is provided with a side plate 401; Wherein: the rotating shaft 302, the guide plate 303 and the sealing plate 304 are all swung in a vertical direction through the rotating shaft 302; The guide plate 303 has a chute on its side, and the slider 4 slides vertically inside the chute. The guide plate 303 weighs 100-200g less than the insulation board 3, and the chute of the guide plate 303 is arranged vertically. The chutes of the guide plate 303 are arranged vertically. Figure 8 As shown; The weight of the guide plate 303 is 100-200g less than that of the heat insulation plate 3, so the heat insulation plate 3 is located below the rotating shaft 302. Figure 8 As shown; The lower end of the heat insulation board 3 is provided with an opening, and the sealing plate 304 is fitted with the opening of the heat insulation board 3. Figure 9 As shown; The slider 4 and the side plate 401 are triangular in shape. The side plate 401 slides on one side of the guide plate 303 through the slider 4. The side plate 401 and the slider 4 are matched with each other. Among them: when the UV light irradiation head is embedded and squeezed into one side of the heat insulation board 3, the UV light irradiation head is first squeezed into the lower end of the side plate 401. At this time, the side plate 401 slides from bottom to top on one side of the guide plate 303 through the slider 4 due to the squeezing of the UV light irradiation head. As the side plate 401 at one end of the guide plate 303 gradually slides from bottom to top, the weight of the guide plate 303 on the side of the third rotating shaft 302 gradually increases. At this time, the guide plate 303 can drive the sealing plate 304 to swing through the third rotating shaft 302, thereby assisting the UV light irradiation head to irradiate the interior of the lower mold 101 through the opening of the heat insulation board 3. After the heat shield 3 returns to its original position, when the raw material overflows from the lower mold 101, the raw material impacts one side of the sealing plate 304. Since the sealing plate 304 is located at the lower end of the rotating shaft 302, the sealing plate 304 cannot swing due to the rotating shaft 302. This side opening structure can prevent the silicone member 103 from being deformed due to high temperature caused by the overflow of raw material. Example

[0029] The curing method includes the following steps: S1: The raw material is poured into the casting groove of the lower mold 101, and then the upper mold 1 and the lower mold 101 are fixed together by bolts, and the raw material is formed inside the lower mold 101; S2: The UV light irradiation head is embedded in the side pipe 102 and squeezed to one side of the heat insulation board 3. The heat insulation board 3 is tilted and swung by the second rotating shaft 301. At this time, the UV light irradiation head irradiates UV light through the side pipe 102 to the interior of the lower mold 101. S3: When the UV light irradiation head is embedded and squeezed into one side of the heat insulation board 3, the UV light irradiation head is first squeezed into the lower end of the side plate 401. At this time, the side plate 401 slides from bottom to top on one side of the guide plate 303 through the slider 4 due to the squeezing of the UV light irradiation head; S4: As the side plate 401 at one end of the guide plate 303 gradually slides from bottom to top, the weight of the guide plate 303 on the side of the third rotating shaft 302 gradually increases. At this time, the guide plate 303 can drive the sealing plate 304 to swing through the third rotating shaft 302, and the UV light irradiation head irradiates the interior of the lower mold 101 through the opening of the heat insulation plate 3; S5: When the heat shield 3 tilts and swings, the heat shield 3 drives the swing arm 203 to slide synchronously. The swing arm 203 drives the sliding post 201 to slide on the inner side of the track 2 via the rotating shaft 1 202. At the same time, the swing arm 203 tilts and swings horizontally via the rotating shaft 1 202. At this time, the sliding post 201 slides from bottom to top on the inner side of the track 2. S6: When the UV light irradiation head cannot squeeze to one side of the heat insulation board 3, the sliding column 201 uses its own weight to slide back to its original position on the inner side of the track 2. When the sliding column 201 slides back to its original position, it can drive the heat insulation board 3 to return to its original position through the rotating shaft 1 202 and the swing arm 203. The heat insulation board 3 swings back to its original position through the rotating shaft 2 301. At this time, the heat insulation board 3 once again forms a seal inside the opposite side pipe 102. S7: After the heat shield 3 returns to its original position, when the raw material overflows from the lower mold 101, the raw material impacts one side of the sealing plate 304. Since the sealing plate 304 is at the lower end of the rotating shaft 302, the sealing plate 304 cannot swing through the rotating shaft 302 at this time. S8: UV light penetrates the interior of the side pipe 102 , and the UV light completes the UV curing process of the glue inside the lower mold 101 through the side pipe 102 .

[0030] The above are only preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, several modifications and improvements can be made without departing from the concept of the present invention. These should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent.

Claims

1. A side opening structure for the inside of a metal mold, characterized in that: include The upper mold (1) and the lower mold (101) are vertically interlocked, the upper mold (1) and the lower mold (101) are interlocked and installed by bolts, and a casting groove is provided inside the lower mold (101); A side pipe (102), the side pipe (102) is connected to the casting trough, the side pipe (102) passes through the side surface of the lower mold (101), and the inner wall of one end of the side pipe (102) away from the lower mold (101) is surrounded by a silicone piece (103); The inside of the side pipe (102) passes through the UV light irradiation head, and the side pipe (102) assists the UV light irradiation to the inside of the casting trough of the lower mold (101); The upper end of the inside of the side pipe (102) is hingedly connected to a second rotating shaft (301), and the lower end of the second rotating shaft (301) is rotatably connected to a heat insulation board (3).

2. The side opening structure for the inside of a metal mold according to claim 1, characterized in that: The second rotating shaft (301) is arranged vertically, the heat insulation plate (3) is in the shape of a disc, the heat insulation plate (3) is swung at an angle of 60-180 degrees via the second rotating shaft (301), and an opening is provided at the lower end of the heat insulation plate (3), the opening being in the shape of a semicircle.

3. The side opening structure for the inside of a metal mold according to claim 1, characterized in that: The inner wall of the side pipe (102) close to the silicone member (103) is provided with a track (2); the inner side of the track (2) is slidably connected to a sliding column (201); one side of the sliding column (201) is hingedly connected to a rotating shaft (202); and one side of the rotating shaft (202) close to the heat insulation board (3) is swingably connected to a swing arm (203).

4. The side opening structure for the inside of a metal mold according to claim 3, characterized in that: The track (2) is inclined at 45°, and one end of the track (2) that is inclined upward is close to one side of the heat insulation board (3). The track (2) and the sliding column (201) are arranged in a matching manner.

5. The side opening structure for the inside of a metal mold according to claim 3, characterized in that: One end of the swing arm (203) is located on one side of the heat insulation board (3), and the swing arm (203) swings horizontally and tiltedly via the first rotating shaft (202).

6. The side opening structure for the inside of a metal mold according to claim 1, characterized in that: A rotating shaft three (302) is hingedly connected in the middle of the heat insulation plate (3); the upper end of the rotating shaft three (302) is swingably connected to a guide plate (303); the lower end of the rotating shaft three (302) is swingably connected to a sealing plate (304); a slider (4) is slidably connected to the guide plate (303) near the inlet of the side pipe (102); and a side plate (401) is provided at the end of the slider (4).

7. The side opening structure for the inside of a metal mold according to claim 6, characterized in that: The guide plate (303) and the sealing plate (304) are both swung in a vertical direction via the rotating shaft three (302); The guide plate (303) is provided with a slide groove on a side surface of the guide plate (303), the slider (4) slides in a vertical direction inside the slide groove, the weight of the guide plate (303) is 100-200g less than the weight of the heat insulation plate (3), and the slide groove of the guide plate (303) is arranged vertically.

8. The side opening structure for the inside of a metal mold according to claim 6, characterized in that: The sealing plate (304) is fitted onto the opening of the heat insulation plate (3).

9. The side opening structure for the inside of a metal mold according to claim 6, characterized in that: The side plate (401) is triangular in shape, and the side plate (401) slides on one side of the guide plate (303) via a slider (4), and the side plate (401) and the slider (4) are matched to each other.

10. A UV curing method for the interior of a metal mold, characterized in that: According to the side opening structure for the inside of a metal mold according to claims 1-9, the curing method comprises the following steps: S1: The raw material is poured into the casting groove of the lower mold, and then the upper mold and the lower mold are fitted together by bolts, and the raw material is formed inside the lower mold; S2: The UV light irradiation head is embedded in the side pipe, and is squeezed to one side of the heat insulation board. The heat insulation board is tilted and swung through the second rotating shaft. At this time, the UV light irradiation head irradiates the UV light to the inside of the lower mold through the side pipe; S3: When the UV light irradiation head is embedded and squeezed to one side of the heat insulation board, the UV light irradiation head is first squeezed to the lower end of the side plate. At this time, the side plate slides from bottom to top on one side of the guide plate through the slider due to the squeezing of the UV light irradiation head; S4: As the side plate at one end of the guide plate gradually slides from bottom to top, the weight of the guide plate on the side of the rotating shaft 3 gradually increases. At this time, the guide plate can drive the sealing plate to swing through the rotating shaft 3, and the UV light irradiation head irradiates the interior of the lower mold through the opening of the heat insulation plate; S5: When the heat insulation board is tilted and swung, the heat insulation board drives the swing arm to slide synchronously, and the swing arm drives the sliding column to slide on the inner side of the track through the rotating shaft 1. At the same time, the swing arm is tilted and swung horizontally through the rotating shaft 1, and the sliding column slides from bottom to top on the inner side of the track; S6: When the UV light irradiation head cannot be squeezed to one side of the heat insulation board, the sliding column uses its own weight to slide back to the inner side of the track. When the sliding column slides back, it can drive the heat insulation board to return to its position through the rotating shaft 1 and the swing arm. The heat insulation board swings back through the rotating shaft 2. At this time, the heat insulation board forms a seal inside the opposite side pipe again; S7: After the heat insulation plate returns to its original position, when the raw material in the lower mold overflows, the raw material impacts one side of the sealing plate. Since the sealing plate is at the lower end of the rotating shaft three, the sealing plate cannot swing through the rotating shaft three at this time; S8: UV light penetrates the inside of the side pipe, and the UV light completes the UV curing process of the glue inside the lower mold through the side pipe.

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