A heat dissipation and cooling device for rotational molding mold cavity

Abstract

The present invention discloses a heat dissipation and cooling device for a roto-molding mold cavity, and relates to the technical field related to roto-molding molds. The present invention includes a processing component, an adjustment drive component, a roto-molding component, and an opening and closing mechanism. The processing component includes a processing shell and a heat dissipation fan. The adjustment drive component includes a hollow support shaft. The circumferential side surfaces of the hollow support shaft are respectively fixedly connected with an air inlet duct and an air outlet duct. The circumferential side surfaces of the hollow support shaft are symmetrically provided with vents. The roto-molding component includes a roto-molding groove and a heat dissipation groove. The opening and closing mechanism includes a first opening and closing component, a second opening and closing component, and an opening and closing regulating component. The opening and closing regulating component includes a U-shaped transmission frame. The present invention drives the heat dissipation fan to rotate synchronously through the transmission of the hollow support shaft to dissipate heat outside the roto-molding component. The U-shaped transmission frame moves horizontally, and the airflow enters the heat dissipation groove from the vent to dissipate heat inside the roto-molding component, thereby achieving simultaneous heat dissipation of the inside and outside of the roto-molding mold, improving heat dissipation efficiency, and improving heat dissipation performance.

Description

Technical Field

[0001] The invention belongs to the technical field related to rotational molding molds, and in particular relates to a heat dissipation and cooling device for a rotational molding mold cavity. Background Art

[0002] Roto-molding is a thermoplastic hollow molding method. Plastic raw material powder is added into the mold, and then the mold is closed and fixed on a rotating frame. The plastic raw material is melted by heating the mold and evenly coated on the inner wall of the mold. The mold is rotated at a certain speed and angle to form a uniform thickness of the plastic raw material on the inner wall of the mold, and gradually cools and solidifies.

[0003] When common rotational molding molds are dissipating heat, the mold needs to be transferred out of the heating furnace and dissipated by rotating, or by opening the heating furnace to accelerate the gas flow to dissipate heat. However, the heat dissipation effect is poor, and the temperature difference between the inside and the outside is large, which can easily cause incomplete heat dissipation and safety accidents such as burns to workers during the mold transfer process. To this end, we provide a heat dissipation and cooling device for rotational molding mold cavities to solve the above technical problems. Summary of the invention

[0004] The object of the present invention is to provide a heat dissipation and cooling device for a rotational molding mold cavity, which solves the problems in the above technical background through the specific structural design of a processing component, an adjustment drive component, a rotational molding component and an opening and closing mechanism.

[0005] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0006] The present invention discloses a heat dissipation and cooling device for a rotational molding mold cavity, comprising a processing component, an adjustment drive component, a rotational molding component and an opening and closing mechanism, wherein the processing component comprises a processing shell that can be horizontally moved and a rotatably arranged heat dissipation fan, wherein the heat dissipation fan is rotatably arranged inside the processing shell; the adjustment drive component is fixedly connected to the inner side of the processing component, the adjustment drive component comprises a rotatably arranged hollow support shaft, wherein the heat dissipation fan is engaged with a side surface of the hollow support shaft, wherein the peripheral side surfaces of the hollow support shaft are respectively fixedly connected with an air inlet duct and an air outlet duct, wherein the peripheral side surfaces of the hollow support shaft are symmetrically provided with vents, and the vents A sealing plug which can be moved up and down is provided internally for sliding movement; the roto-molding component is clamped on the peripheral side of the hollow support shaft, the roto-molding component includes a roto-molding groove and a heat dissipation groove, the heat dissipation groove is coaxially arranged with the roto-molding groove, and the heat dissipation groove is arranged outside the roto-molding groove, and the vent is connected with the heat dissipation groove; the opening and closing mechanism is fixedly mounted on the lower surface of the air inlet duct and the air outlet duct; the opening and closing mechanism includes a first opening and closing component, a second opening and closing component and an opening and closing regulating component, the first opening and closing component and the second opening and closing component are coaxially rotatably arranged inside the opening and closing regulating component, and the opening and closing regulating component includes a horizontally movable U-shaped transmission frame.

[0007] The processed shell moves horizontally so that the cooling fan and the hollow support shaft are engaged with each other. The transmission of the hollow support shaft drives the cooling fan to rotate synchronously to dissipate heat to the outside of the rotational molding component. During the docking process, the U-shaped transmission frame moves horizontally, the first opening and closing component and the second opening and closing component rotate synchronously in opposite directions, and the sealing plug moves upward, and part of the flowing gas flows in from the air inlet duct, enters the heat dissipation groove along the tangential direction through the corresponding vents, and flows out from the other vent along the heat dissipation groove in the spiral direction, and finally flows out through the air outlet duct to dissipate heat to the inside of the rotational molding component.

[0008] The present invention is further configured as follows, wherein the processing assembly also includes a horizontal support plate, the upper surface of the horizontal support plate is symmetrically fixedly connected with a guide slide rail, the inner side of the guide slide rail is rotatably connected with a driving screw, the processing shell is slidably arranged between the two guide slide rails, and the processing shell and the driving screw are threadedly matched; an opening and closing door plate is symmetrically slidably arranged at the bottom of the processing shell, one side of the guide slide rail is rotatably connected with a first transmission wheel, the first transmission wheel is fixedly connected to the corresponding driving screw, and a vertical support plate is fixedly connected between the two guide slide rails; a heat dissipation pipe is installed on a side of the processing shell away from the first transmission wheel, the surface of the heat dissipation pipe is hinged with a ventilation plate, the inner wall of the heat dissipation pipe is fixedly connected with the heat dissipation support plate, and the heat dissipation fan is rotatably arranged on one side of the heat dissipation support plate; a docking column is fixedly connected at the axis of the heat dissipation fan, and a clamping block is symmetrically fixedly connected to the side surface of the docking column.

[0009] The present invention is further configured as follows: the adjustment drive assembly also includes a driving support plate fixedly connected to the upper surface of the horizontal support plate, the driving support plate is provided with a transmission adjustment groove on a side surface close to the vertical support plate, a transmission disc is rotatably arranged inside the transmission adjustment groove, an electromagnet is fixedly installed on one side surface of the transmission disc, and a transmission telescopic rod is symmetrically fixedly connected to the side surface of the transmission disc close to the electromagnet; a transmission gear is fixedly connected between the two transmission telescopic rods, an adjustment reset spring is symmetrically fixedly connected between the transmission gear and the transmission disc, and the adjustment reset spring is sleeved on the outside of the corresponding transmission telescopic rod, and a side surface of the transmission gear away from the electromagnet is fixedly connected to a second transmission wheel through a telescopic column, the second transmission wheel is connected to the two first transmission wheels through a transmission belt, and one side surface of the second transmission wheel is rotatably connected to a side surface of the vertical support plate through a rotating shaft.

[0010] The present invention is further configured as follows: a driving gear is provided on the side of the hollow support shaft away from the cooling fan, the driving gear and the transmission gear are meshed with each other, an installation groove is provided on the upper surface of the driving support plate, a driving motor is fixedly installed inside the installation groove through a motor seat, and the output shaft of the driving motor is fixed to the end of the hollow support shaft; a first docking groove is provided at the axis center of one side of the hollow support shaft close to the cooling fan, a second docking groove is symmetrically provided on the inner side wall of the first docking groove, and the first docking groove and the second docking groove are snap-fitted with the snap-fit ​​block.

[0011] The hollow support shaft is symmetrically and slidingly provided with a first transmission column near one end of the cooling fan, and a second transmission column coaxial with the hollow support shaft is slidably provided inside the hollow support shaft, the second transmission column passes through the first docking groove, and the second transmission column is symmetrically and fixedly connected with a trapezoidal transmission block on the circumferential side surface; a partition plate is symmetrically and fixedly connected inside the hollow support shaft, an elastic element is fixedly connected between one side surface of the trapezoidal transmission block and the corresponding partition plate, and the two partition plates divide the interior of the hollow support shaft into an air inlet chamber, an isolation chamber and an air outlet chamber, and an L-shaped ventilation pipe is symmetrically provided on the circumferential side surface of the hollow support shaft, one end of the L-shaped ventilation pipe is connected to the air inlet chamber or the air outlet chamber, and the other end of the L-shaped ventilation pipe is connected to the rotational molding groove.

[0012] The present invention is further configured such that a blocking support plate is fixedly connected to one side of the partition plate, a sliding guide column is fixedly connected to the upper surface of the blocking block, one end of the sliding guide column passing through the blocking support plate is fixedly connected to a mounting frame, an adjusting transmission wheel is rotatably connected inside the mounting frame, the adjusting transmission wheel rolls with the inclined surface of the trapezoidal transmission block, a blocking reset spring is fixedly connected between the mounting frame and the blocking support plate, and the blocking reset spring is sleeved on the outside of the sliding guide column; docking positioning grooves are symmetrically provided on the circumferential side of the hollow support shaft, a docking telescopic column is fixedly connected to the docking positioning groove, one end of the docking telescopic column is fixedly connected to a docking positioning ball, a docking reset spring is fixedly connected between the docking positioning groove and the docking positioning ball, and the docking reset spring is sleeved on the outside of the docking telescopic column.

[0013] The present invention is further configured such that the roto-molded component also includes a roto-molded outer shell symmetrically and slidably arranged on the circumferential side of the hollow support shaft, and the two roto-molded outer shells are fixedly connected with extended mounting plates on the circumferential side, and the two extended mounting plates are fixedly connected by bolts, and the roto-molded groove and the heat dissipation groove are both opened inside the roto-molded outer shell, and the inner wall of the roto-molded outer shell is symmetrically and fixedly connected with a U-shaped air duct, one end of the U-shaped air duct is connected with the corresponding vent, and the other end of the U-shaped air duct is connected with the heat dissipation groove, and the opening of the U-shaped air duct inside the heat dissipation groove is facing the tangent direction of the heat dissipation groove; the inner wall of the roto-molded outer shell is symmetrically provided with limiting grooves, and the limiting grooves are engaged with the corresponding docking positioning balls.

[0014] The present invention is further configured as follows: the first opening and closing component includes an opening and closing rotating shaft, a plurality of first mounting tubes are fixedly connected to the circumferential side surface of the opening and closing rotating shaft, first opening and closing fan blades are fixedly connected between the first mounting tubes, one end of the opening and closing rotating shaft is fixedly connected to an adjusting disk, a first extension block is fixedly connected to the circumferential side surface of the adjusting disk, and a side of the first extension block close to the first opening and closing fan blade is fixedly connected to the first opening and closing transmission column; the second opening and closing component includes a plurality of second mounting tubes slidably arranged on the circumferential side surface of the opening and closing rotating shaft, the first mounting tube and the second mounting tube are staggered and fitted with each other, second opening and closing fan blades are fixedly connected between the second mounting tubes, one end of the second mounting tube is fixedly connected to a hollow adjusting disk, a second extension block is fixedly connected to the circumferential side surface of the hollow adjusting disk, and a second extension block is fixedly connected to the side of the second extension block away from the second opening and closing fan blade.

[0015] The opening and closing regulation component also includes an opening and closing support frame fixedly connected to the air inlet duct and the lower surface of the air outlet duct, the opening and closing rotating shaft is rotatably connected to the inner wall of the opening and closing support frame, and the peripheral side of the opening and closing support frame is fixedly connected to an adjusting support frame, and an opening and closing transmission groove is provided on two relatively inner side walls of the adjusting support frame, and the U-shaped transmission frame is slidably arranged between the two opening and closing transmission grooves; an opening and closing reset spring is fixedly connected between the U-shaped transmission frame and the inner wall of the adjusting support frame, one end of the first transmission column is fixedly connected to a side surface of the corresponding U-shaped transmission frame, and the opening and closing reset spring is sleeved on the outside of the first transmission column; a transmission channel is provided on the inner side of the U-shaped transmission frame, and the opening and closing rotating shaft passes through one end of the U-shaped transmission frame and is slidably arranged inside the transmission channel, and an adjusting slide groove is symmetrically provided on the inner side of the U-shaped transmission frame, and the first opening and closing transmission column and the second opening and closing transmission column are slidably arranged inside the corresponding adjusting slide groove.

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention arranges a processing component, an adjustment drive component and a rotational molding component, and utilizes the rotation of a cooling fan to accelerate the flow of gas. The airflow enters from the air inlet duct, enters the U-shaped air duct through the vent, and enters the heat dissipation groove along the tangent direction through the U-shaped air duct. At the same time, part of the airflow enters the rotational molding groove through the L-shaped ventilation duct, so that the airflow flows along the rotational molding groove to dissipate the internal heat of the molded device, and finally flows out through the air outlet duct, thereby achieving simultaneous heat dissipation of the inner and outer sides of the molding mold, and simultaneously dissipating the outside and inside of the rotational molding outer shell, accelerating the heat dissipation speed and improving the heat dissipation efficiency.

[0018] 2. The present invention sets a processing component and an adjusting drive component, and controls the switch of the electromagnet to control whether the driving gear and the transmission gear are engaged. Under the meshing action, the processing shell rotates horizontally with the hollow support shaft and moves close to the hollow support shaft. When the cooling fan is connected to the hollow support shaft, the cooling fan rotates synchronously with the hollow support shaft, thereby achieving effective utilization of the driving source, reducing energy expenditure, and realizing multiple operations by sharing a power source.

[0019] 3. The present invention sets a processing component, an adjustment drive component and an opening and closing mechanism. When docking, the cooling fan pushes the first transmission column and the second transmission column to move horizontally, driving the sealing plug to move upward. At the same time, the U-shaped transmission frame moves horizontally to drive the first opening and closing fan blade and the second opening and closing fan blade to rotate synchronously in opposite directions, thereby realizing the synchronous opening of the two air vents, the air inlet duct and the air outlet duct, which is convenient for heat dissipation operations.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 The present invention is a structural schematic diagram of a heat dissipation and cooling device for a rotational molding mold cavity.

[0023] Figure 2 It is a schematic diagram of the structure of the processing assembly in the present invention.

[0024] Figure 3 for Figure 2 Longitudinal structural cross-sectional view.

[0025] Figure 4 for Figure 3 A partial enlarged schematic diagram of point C in the middle.

[0026] Figure 5 It is a schematic diagram of the structure of the adjustment drive assembly in the present invention.

[0027] Figure 6 for Figure 4 A local enlarged schematic diagram of point A in the middle.

[0028] Figure 7 It is a partial structural schematic diagram of the adjustment drive assembly in the present invention.

[0029] Figure 8 It is a partial longitudinal structural cross-sectional view of the adjustment drive assembly in the present invention.

[0030] Fig. 9 for Figure 8 A local enlarged schematic diagram of point B in the middle.

[0031] Fig.10 for Figure 8 Schematic diagram of use with opening and closing mechanism.

[0032] Fig.11 It is a partial transverse structural cross-sectional view of the adjustment drive assembly in the present invention.

[0033] Fig.12 It is a schematic diagram of the structure of the rotational molding component in the present invention.

[0034] Fig.13 for Fig.10 Longitudinal structural cross-sectional view.

[0035] Fig.14 It is a structural schematic diagram of the opening and closing mechanism in the present invention.

[0036] Fig.15 It is a structural schematic diagram of the first opening and closing component in the present invention.

[0037] Fig.16 It is a structural schematic diagram of the second opening and closing component in the present invention.

[0038] Fig.17 It is a structural schematic diagram of the opening and closing regulating component in the present invention.

[0039] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0040] 1-processing assembly, 101-processing shell, 102-cooling fan, 103-horizontal support plate, 104-guide rail, 105-driving screw, 106-opening and closing door plate, 107-first transmission wheel, 108-vertical support plate, 109-ventilation plate, 110-heat dissipation support plate, 111-clamping block, 2-adjusting drive assembly, 201-hollow support shaft, 202-inlet duct, 203-outlet duct, 204-seal Blockage, 205-driving support plate, 206-driving disc, 207-electromagnet, 208-driving telescopic rod, 209-driving gear, 210-adjusting return spring, 211-second driving wheel, 212-driving gear, 213-driving motor, 214-first docking groove, 215-second docking groove, 216-first driving column, 217-second driving column, 218-trapezoidal driving block, 219-partition plate, 220- Blocking support plate, 221-sliding guide column, 222-adjusting transmission wheel, 223-blocking reset spring, 224-docking positioning groove, 225-docking positioning ball, 226-docking reset spring, 3-roto-molded component, 301-roto-molded groove, 302-heat dissipation groove, 303-roto-molded outer shell, 304-U-shaped air guide pipe, 305-limiting groove, 4-opening and closing mechanism, 41-first opening and closing component, 411-opening and closing rotation axis, 412- The first opening and closing blade, 413-adjusting disc, 414-the first opening and closing transmission column, 42-the second opening and closing component, 421-the second opening and closing blade, 422-the hollow adjusting disc, 423-the second opening and closing transmission column, 43-the opening and closing regulating component, 431-the U-shaped transmission frame, 432-the opening and closing support frame, 433-the adjusting support frame, 434-the opening and closing transmission groove, 435-the opening and closing return spring, 436-the transmission channel, 437-the adjusting slide groove. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] For specific embodiment 1, please refer to Figure 1-17 The present invention is a heat dissipation and cooling device for a rotational molding mold cavity, comprising a processing component 1, an adjustment drive component 2, a rotational molding component 3 and an opening and closing mechanism 4. Specifically, the processing component 1 comprises a processing shell 101 which can be moved horizontally and a heat dissipation fan 102 which is rotatably arranged inside the processing shell 101. A heating device is arranged inside the processing shell 101 for heating the rotational molding material before molding; the adjustment drive component 2 is fixedly connected to the inner side of the processing component 1, and the adjustment drive component 2 comprises a rotatably arranged hollow support shaft 201. The heat dissipation fan 102 and the hollow support shaft 201 are connected to the processing shell 101. One side of the support shaft 201 is snap-fitted, and the sides of the hollow support shaft 201 are fixedly connected with an air inlet duct 202 and an air outlet duct 203. The sides of the hollow support shaft 201 are symmetrically provided with vents. The heat dissipation fan 102 rotates to generate airflow which passes through the air inlet duct 202 and the corresponding vents in turn into the interior of the rotational molding component 3 for internal heat dissipation, and then is discharged from another vent and discharged through the air outlet duct 203, thereby realizing the internal heat dissipation operation of the rotational molding component 3. A sealing plug 204 that can move up and down is slidably provided inside the vent, and the sealing plug 204 moves up and down to realize the opening and closing of the vent.

[0043] Furthermore, the roto-molding component 3 is clamped and arranged on the side surface of the hollow support shaft 201, and the roto-molding component 3 rotates synchronously with the hollow support shaft 201 to realize roto-molding. The roto-molding component 3 includes a roto-molding groove 301 and a heat dissipation groove 302. The heat dissipation groove 302 is arranged coaxially with the roto-molding groove 301, and the heat dissipation groove 302 is arranged outside the roto-molding groove 301. After the two roto-molding grooves 301 are closely connected, a roto-molding cavity is formed, and after the two heat dissipation grooves 302 are closely connected, a heat dissipation cavity is formed. The roto-molding material is heated and melted inside the roto-molding cavity to be formed. When dissipating heat, gas enters the heat dissipation cavity and dissipates heat from the inside. Thermal operation, the vent is connected to the heat dissipation slot 302; the opening and closing mechanism 4 is fixedly installed on the lower surface of the air inlet duct 202 and the air outlet duct 203; the opening and closing mechanism 4 includes a first opening and closing component 41, a second opening and closing component 42 and an opening and closing regulating component 43, the first opening and closing component 41 and the second opening and closing component 42 are coaxially rotatable and arranged inside the opening and closing regulating component 43, the opening and closing regulating component 43 includes a horizontally movable U-shaped transmission frame 431, the first opening and closing component 41 and the second opening and closing component 42 synchronously rotate in opposite directions to control the opening and closing of the air inlet duct 202 and the air outlet duct 203.

[0044] The operation process of this embodiment is as follows: the processing shell 101 moves horizontally and gradually approaches the rotational molding component 3. When the rotational molding component 3 is completely located inside the processing shell 101, the rotational molding component 3 rotates synchronously with the hollow support shaft 201 to realize rotational molding. After molding, the processing shell 101 continues to move horizontally until the cooling fan 102 is engaged with the hollow support shaft 201. The transmission of the hollow support shaft 201 drives the cooling fan 102 to rotate synchronously. The rotation of the cooling fan 102 generates airflow to dissipate heat outside the rotational molding component 3; during the docking process, the U-shaped transmission frame 431 moves horizontally, the first opening and closing component 41 and the second opening and closing component 42 rotate synchronously in opposite directions, the air inlet duct 202 and the air outlet duct 203 are opened synchronously, and the sealing plug 204 moves upward, and part of the flowing gas flows in from the air inlet duct 202, and the air flow enters the heat dissipation slot 302 along the tangential direction through the corresponding vent, and flows along the heat dissipation slot 302 along the spiral direction, and then flows out through another vent, and finally flows out through the air outlet duct 203, so as to realize the heat dissipation of the internal rotational molding component 3.

[0045] For specific embodiment 2, please refer to Figure 2-13 On the basis of the first specific embodiment, specifically, the processing assembly 1 also includes a horizontal support plate 103, and the upper surface of the horizontal support plate 103 is symmetrically fixedly connected with a guide slide rail 104, and the inner side of the guide slide rail 104 is rotatably connected with a drive screw 105, and the processing shell 101 is slidably set between the two guide slide rails 104, and the processing shell 101 and the drive screw 105 are threadedly matched, and the drive screw 105 drives the processing shell 101 to move horizontally; the bottom of the processing shell 101 is symmetrically slidably set with an opening and closing door plate 106, and the processing shell 101 remains airtight when the opening and closing door plates 106 are close to each other, and a first transmission wheel 107 is rotatably connected to one side of the guide slide rail 104, and the first transmission wheel 107 is fixedly connected to the corresponding drive screw 105, and the first transmission wheel 107 drives the corresponding drive screw 105 to rotate synchronously, and a vertical support plate 108 is fixedly connected between the two guide slide rails 104.

[0046] A heat dissipation pipe is installed on one side of the processing shell 101 away from the first transmission wheel 107, and a ventilation plate 109 is hinged on the surface of the heat dissipation pipe. When heat dissipation is performed, the ventilation plate 109 is first opened to facilitate heat dissipation. A heat dissipation support plate 110 is fixedly connected to the inner wall of the heat dissipation pipe, and the heat dissipation fan 102 is rotatably arranged on one side of the heat dissipation support plate 110; a docking column is fixedly connected to the axis of the heat dissipation fan 102, and a clamping block 111 is symmetrically fixedly connected to the side surface around the docking column.

[0047] Furthermore, the adjustment drive assembly 2 also includes a drive support plate 205 fixedly connected to the upper surface of the horizontal support plate 103, and a transmission adjustment groove is provided on one side of the drive support plate 205 close to the vertical support plate 108, and a transmission disc 206 is rotatably arranged inside the transmission adjustment groove, and an electromagnet 207 is fixedly installed on one side of the transmission disc 206, and a transmission telescopic rod 208 is symmetrically fixedly connected to the side of the transmission disc 206 close to the electromagnet 207; a transmission gear 209 is fixedly connected between the two transmission telescopic rods 208, and the transmission gear 209 is made of a magnetically absorbable material, and the electromagnet 207 When starting, the transmission gear 209 is adsorbed, and an adjustment reset spring 210 is symmetrically fixedly connected between the transmission gear 209 and the transmission disc 206. The adjustment reset spring 210 is sleeved on the outside of the corresponding transmission telescopic rod 208. The side of the transmission gear 209 away from the electromagnet 207 is fixedly connected to the second transmission wheel 211 through a telescopic column. The second transmission wheel 211 rotates synchronously with the transmission gear 209. The second transmission wheel 211 is connected to the two first transmission wheels 107 through a transmission belt, and one side of the second transmission wheel 211 is rotatably connected to one side of the vertical support plate 108 through a rotating shaft.

[0048] A driving gear 212 is provided on the side of the hollow support shaft 201 away from the cooling fan 102, and the driving gear 212 and the transmission gear 209 are meshed with each other. When the electromagnet 207 is closed and the transmission telescopic rod 208 is at its original length, the driving gear 212 is meshed with the transmission gear 209; when the electromagnet 207 is started, the transmission telescopic rod 208 is compressed, and the driving gear 212 loses meshing with the transmission gear 209. An installation groove is provided on the upper surface of the driving support plate 205, and a driving motor 213 is fixedly installed inside the installation groove through a motor seat. The output shaft of the driving motor 213 is fixedly connected to the driving gear 212, and the output shaft of the driving motor 213 is fixed on the end of the hollow support shaft 201, and the driving motor 213 drives the driving gear 212 to rotate.

[0049] The operation process of this embodiment is as follows: when the rotational molding component 3 needs to be placed inside the processing shell 101 for heating, the electromagnet 207 is in a closed state, the transmission telescopic rod 208 and the adjustment reset spring 210 are in the original length state, the driving gear 212 is meshed with the transmission gear 209, and the driving motor 213 is started to drive the driving gear 212 to rotate. Under the mutual meshing action of the driving gear 212 and the transmission gear 209, the driving gear 212 rotates to drive the transmission gear 209 to rotate synchronously, and the transmission gear 209 drives the second transmission wheel 211 to rotate synchronously. Under the connection action of the transmission belt, the two first transmission wheels 107 rotate synchronously, and the first transmission wheel 107 drives the driving screw 105 to rotate. When the driving screw 105 is threaded with the processing shell 101, the first transmission wheel 107 drives the driving screw 105 to rotate. Under the cooperation, the processing shell 101 moves horizontally along the guide slide rail 104 until the rotational molding component 3 is completely located inside the processing shell 101, and the two opening and closing door panels 106 are pushed to slide relative to each other to close the processing shell 101, and the heating device is started, and the electromagnet 207 is started at the same time; when the electromagnet 207 is in the on state, the transmission gear 209 is adsorbed by the electromagnet 207 by magnetic attraction, and the transmission telescopic rod 208 and the adjustment reset spring 210 are compressed synchronously, and the transmission gear 209 is away from the driving gear 212, and the meshing effect of the driving gear 212 and the transmission gear 209 disappears, and the driving motor 213 is started to drive the driving gear 212 to rotate, and the hollow support shaft 201 rotates synchronously, so that the rotational molding component 3 rotates synchronously with the hollow support shaft 201 to perform the rotational molding operation.

[0050] For specific embodiment 3, please refer to Figure 2-13On the basis of the first and second specific embodiments, specifically, a first docking groove 214 is provided at the axis center of one side of the hollow support shaft 201 close to the heat dissipation fan 102, and a second docking groove 215 is symmetrically provided on the inner wall of the first docking groove 214, and the angle of the second docking groove 215 is much larger than the angle of the clamping block 111; a first transmission column 216 is symmetrically slidably provided at one end of the hollow support shaft 201 close to the heat dissipation fan 102, and a second transmission column 217 coaxial with the hollow support shaft 201 is slidably provided inside the hollow support shaft 201, and one end of the second transmission column 217 is flush with the end of the hollow support shaft 201, and when the docking column and the second transmission column 217 are in contact with each other, the clamping block 111 is directly opposite to the second docking groove 215, and as the clamping block 111 continues to move horizontally, the clamping block 111 is always directly opposite to the range of the second docking groove 215, and the clamping block 111 moves gradually into the second docking groove 215, and the heat dissipation The fan 102 rotates synchronously with the hollow support shaft 201, and the second transmission column 217 passes through the first docking groove 214, and the second transmission column 217 is symmetrically fixedly connected with a trapezoidal transmission block 218 on the side surface; a partition plate 219 is symmetrically fixedly connected inside the hollow support shaft 201, wherein an elastic element is fixedly connected between one side of a trapezoidal transmission block 218 and the corresponding partition plate 219, and the elastic element is an existing elastic device such as a spring. The two partition plates 219 divide the inside of the hollow support shaft 201 into an air inlet chamber, an isolation chamber and an air outlet chamber. L-shaped ventilation pipes are symmetrically arranged on the side surface of the hollow support shaft 201, one end of the L-shaped ventilation pipe is connected to the air inlet chamber or the air outlet chamber, and the other end of the L-shaped ventilation pipe is connected to the rotational molding groove 301. A one-way valve is arranged inside the L-shaped ventilation pipe, so that the gas moves in the direction from the air inlet chamber to the air outlet chamber, and the airflow can enter the rotational molding groove 301 through the L-shaped ventilation pipe to achieve further heat dissipation inside it.

[0051] Furthermore, a side of the partition plate 219 is fixedly connected to a blocking support plate 220, and a sliding guide column 221 is fixedly connected to the upper surface of the blocking plug 204. The sliding guide column 221 passes through one end of the blocking support plate 220 and is fixedly connected to a mounting frame. An adjusting transmission wheel 222 is rotatably connected inside the mounting frame. The adjusting transmission wheel 222 rolls with the inclined surface of the trapezoidal transmission block 218. A blocking reset spring 223 is fixedly connected between the mounting frame and the blocking support plate 220. The adjusting transmission wheel 222 moves along the blocking reset spring 223 under the action of the blocking reset spring 223. The trapezoidal transmission block 218 rolls on the inclined surface, driving the sealing block 204 to move up and down through the sliding guide column 221, and the sealing reset spring 223 is sleeved on the outside of the sliding guide column 221; the hollow support shaft 201 is symmetrically provided with docking positioning grooves 224 on the side surface, and a docking telescopic column is fixedly connected to the inside of the docking positioning groove 224, and a docking positioning ball 225 is fixedly connected to one end of the docking telescopic column, and a docking reset spring 226 is fixedly connected between the docking positioning groove and the docking positioning ball 225, and the docking reset spring 226 is sleeved on the outside of the docking telescopic column.

[0052] Furthermore, the roto-molding assembly 3 also includes a roto-molded outer shell 303 symmetrically and slidably arranged on the side of the hollow support shaft 201, and the two roto-molded outer shells 303 are fixedly connected to the side of the roto-molded outer shells 303, and the two extended mounting plates are fixedly connected by bolts. The roto-molded groove 301 and the heat dissipation groove 302 are both opened inside the roto-molded outer shell 303, and the inner wall of the roto-molded outer shell 303 is symmetrically and fixedly connected with a U-shaped air duct 304, one end of the U-shaped air duct 304 is connected to the corresponding vent, and the other end of the U-shaped air duct 304 is connected to the heat dissipation groove 302. The U-shaped air duct 304 is connected, and the opening of the U-shaped air duct 304 inside the heat dissipation groove 302 faces the tangential direction of the heat dissipation groove 302. The airflow enters the heat dissipation groove 302 from the tangential direction, so that the gas moves in a spiral along the inner wall of the heat dissipation groove 302 (cyclone principle), thereby improving the heat dissipation effect on the outer wall of the rotationally molded product; the inner wall of the rotationally molded outer shell 303 is symmetrically provided with limiting grooves 305, and the limiting grooves 305 are snap-fitted with the corresponding docking positioning balls 225, and the position of the rotationally molded outer shell 303 is fixed by snap-fitting with the limiting grooves 305 and the corresponding docking positioning balls 225.

[0053] The operation process of this embodiment is as follows: before the rotational molding operation, the rotational molding material is placed inside the rotational molding groove 301, the two rotational molding outer shells 303 are aligned with each other and fixed by bolts, and the rotational molding component 3 slides along the side surface of the hollow support shaft 201. When the extended mounting plate contacts the docking positioning ball 225, the docking positioning ball 225 is squeezed, the docking telescopic column contracts, and the docking reset spring 226 is compressed until the limit groove 305 moves to the top of the corresponding docking positioning groove 224. The external force on the docking positioning ball 225 disappears, and under the elastic recovery action of the docking reset spring 226, the docking positioning ball 225 is fitted into the inside of the limit groove 305, thereby realizing the position limitation of the rotational molding component 3.

[0054] The rotation of the hollow support shaft 201 drives the roto-molding component 3 to rotate synchronously, and the external heating is performed through the heating device inside the processing shell 101. After the roto-molding material is melted, it is attached to the inner wall of the roto-molding groove 301. The hollow support shaft 201 rotates continuously until the roto-molding material is completely attached to the inner wall of the roto-molding groove 301, and then the electromagnet 207 is closed to make the driving gear 212 mesh with the transmission gear 209. As the hollow support shaft 201 rotates, the processing shell 101 drives the cooling fan 102 to move in the direction close to the hollow support shaft 201. When the clamping block 111 fits with the second transmission column 217, the clamping block 111 Facing the second docking groove 215, as the processing shell 101 continues to move horizontally, the clamping block 111 pushes the second transmission column 217. Since the angle of the second docking groove 215 is much larger than the angle of the clamping block 111, the clamping block 111 gradually enters the second docking groove 215 to achieve the docking operation. After the docking is completed, the cooling fan 102 rotates synchronously with the hollow support shaft 201, and the electromagnet 207 is started again to make the driving gear 212 lose engagement with the transmission gear 209, and the cooling fan 102 rotates synchronously with the rotation of the hollow support shaft 201 to accelerate the airflow, and at the same time open the ventilation plate 109.

[0055] In the process of docking with the first docking groove 214 and the second docking groove 215, the docking column pushes the second transmission column 217 to move horizontally, and the two trapezoidal transmission blocks 218 move horizontally synchronously, and the elastic element is compressed. In the process of horizontal movement of the trapezoidal transmission block 218, since the blocking reset spring 223 is squeezed by the trapezoidal transmission block 218 in the initial state and is in a compressed state, the movement of the trapezoidal transmission block 218 causes the squeezing force applied to the adjusting transmission wheel 222 to gradually decrease, and under the elastic recovery effect of the blocking reset spring 223, the installation frame gradually moves toward the second transmission wheel 222. The column 217 moves in the direction of the first transmission column 217, and the transmission wheel 222 is adjusted to roll along the inclined surface of the trapezoidal transmission block 218, and the sliding guide column 221 drives the sealing plug 204 to move synchronously until the sealing plug 204 leaves the vent so that the vent is opened; at the same time, during the docking process, the rotating shaft of the cooling fan 102 squeezes the two first transmission columns 216, and the horizontal movement of the first transmission column 216 drives the U-shaped transmission frame 431 to move horizontally, and the first opening and closing component 41 and the second opening and closing component 42 rotate synchronously in opposite directions, and the air inlet duct 202 and the air outlet duct 203 are opened synchronously.

[0056] During the heat dissipation process, the airflow flows along the outside of the rotationally molded outer shell 303 to dissipate heat, part of the airflow enters the hollow support shaft 201 through the air inlet duct 202, and the airflow enters the corresponding U-shaped air duct 304 through the vent at the air inlet cavity, and enters the heat dissipation groove 302 along the tangential direction through the U-shaped air duct 304, so that the airflow flows in a spiral direction along the side surface of the heat dissipation groove 302, and then flows out through another vent and flows out through the air outlet duct 203, so as to dissipate heat to the outer wall of the molded device; at the same time, part of the airflow enters the rotationally molded groove 301 through the L-shaped ventilation duct, and the airflow flows along the rotationally molded groove 301 to dissipate heat internally to the molded device, and then flows to the air outlet cavity through another L-shaped ventilation duct, and is finally discharged through the air outlet duct 203, thereby achieving heat dissipation inside the rotationally molded component 3.

[0057] For specific example 4, please refer to Figure 14-17 On the basis of specific embodiment one, specific embodiment two and specific embodiment three, specifically, the first opening and closing component 41 includes an opening and closing rotating shaft 411, a plurality of first mounting tubes are fixedly connected to the side surface of the opening and closing rotating shaft 411, first opening and closing fan blades 412 are fixedly connected between the first mounting tubes, an adjusting disk 413 is fixedly connected to one end of the opening and closing rotating shaft 411, a first extension block is fixedly connected to the side surface of the adjusting disk 413, and a first opening and closing transmission column 414 is fixedly connected to the side of the first extension block close to the first opening and closing fan blade 412.

[0058] The second opening and closing component 42 includes a plurality of second mounting tubes slidably arranged on the side surfaces of the opening and closing rotating shaft 411, the first mounting tubes and the second mounting tubes are staggered and fitted with each other, and the second opening and closing blades 421 are fixedly connected between the second mounting tubes, the positions of the first opening and closing blades 412 and the second opening and closing blades 421 are limited, and they rotate along the side surfaces of the opening and closing rotating shaft 411, one end of one of the second mounting tubes is fixedly connected to a hollow adjustment disk 422, the side surfaces of the hollow adjustment disk 422 are fixedly connected to a second extension block, and a side surface of the second extension block away from the second opening and closing blades 421 is fixedly connected to a second opening and closing transmission column 423.

[0059] Furthermore, the opening and closing regulating component 43 also includes an opening and closing support frame 432 fixedly connected to the lower surface of the air inlet duct 202 and the air outlet duct 203, the opening and closing rotating shaft 411 is rotatably connected to the inner wall of the opening and closing support frame 432, the first opening and closing fan blade 412 and the second opening and closing fan blade 421 can be rotated and opened and closed inside the opening and closing support frame 432, and the side surface of the opening and closing support frame 432 is fixedly connected with an adjusting support frame 433, and the adjusting support frame 433 is provided with an opening and closing transmission groove 434 on the two inner side walls relative to each other, and the U-shaped transmission frame 431 is slidably arranged between the two opening and closing transmission grooves 434; an opening and closing reset spring is fixedly connected between the U-shaped transmission frame 431 and the inner wall of the adjusting support frame 433 Spring 435, one end of the first transmission column 216 is fixedly connected to a side surface of the corresponding U-shaped transmission frame 431, the opening and closing reset spring 435 is sleeved on the outside of the first transmission column 216, and the first transmission column 216 drives the U-shaped transmission frame 431 to move horizontally; a transmission channel 436 is opened on the inner side of the U-shaped transmission frame 431, and one end of the opening and closing rotation axis 411 passes through the U-shaped transmission frame 431 and is slidably set in the transmission channel 436, and the U-shaped transmission frame 431 is symmetrically opened on the inner side of the U-shaped transmission frame 431. The adjusting grooves 437 are respectively located on the upper and lower sides of the transmission channel 436, and the first opening and closing transmission column 414 and the second opening and closing transmission column 423 are slidably set in the corresponding adjusting grooves 437.

[0060] The operation process of this embodiment is as follows: when the first transmission column 216 moves horizontally, the first transmission column 216 pushes the U-shaped transmission frame 431 to move horizontally along the opening and closing transmission slot 434. During this process, the first opening and closing transmission column 414 and the second opening and closing transmission column 423 are synchronously rotated in opposite directions by the thrust of the adjustment slot 437, and the first opening and closing transmission column 414 drives the adjustment disk 413 to rotate synchronously counterclockwise (such as Fig.12 ), so that the opening and closing rotating shaft 411 rotates synchronously counterclockwise, and then the first opening and closing fan blade 412 rotates synchronously counterclockwise; at the same time, the second opening and closing transmission column 423 drives the hollow adjustment disk 422 to rotate clockwise, and the hollow adjustment disk 422 drives the second mounting tube to rotate clockwise, thereby causing the second opening and closing fan blade 421 to rotate clockwise, and the first opening and closing fan blade 412 and the second opening and closing fan blade 421 approach each other, so that the air inlet duct 202 and the air outlet duct 203 are opened.

[0061] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0062] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A heat dissipation and cooling device for a rotational molding mold cavity, characterized in that: It comprises a processing component (1), an adjustment drive component (2), a rotational molding component (3) and an opening and closing mechanism (4): The processing assembly (1) comprises a processing housing (101) that can be moved horizontally and a rotatably arranged cooling fan (102), wherein the cooling fan (102) is rotatably arranged inside the processing housing (101); The adjusting drive assembly (2) is fixedly connected to the inner side of the processing assembly (1), and the adjusting drive assembly (2) comprises a rotatably arranged hollow support shaft (201), the cooling fan (102) is engaged with a side surface of the hollow support shaft (201), and the peripheral side surfaces of the hollow support shaft (201) are respectively fixedly connected with an air inlet duct (202) and an air outlet duct (203), and the peripheral side surfaces of the hollow support shaft (201) are symmetrically provided with ventilation holes, and a sealing plug (204) that can move up and down is slidably arranged inside the ventilation hole; The roto-molding component (3) is clamped and arranged on the peripheral side of the hollow support shaft (201), the roto-molding component (3) comprises a roto-molding groove (301) and a heat dissipation groove (302), the heat dissipation groove (302) is arranged coaxially with the roto-molding groove (301), and the heat dissipation groove (302) is arranged outside the roto-molding groove (301), and the vent is connected to the heat dissipation groove (302); The opening and closing mechanism (4) is fixedly mounted on the lower surfaces of the air inlet duct (202) and the air outlet duct (203); the opening and closing mechanism (4) comprises a first opening and closing component (41), a second opening and closing component (42) and an opening and closing regulating component (43); the first opening and closing component (41) and the second opening and closing component (42) are coaxially rotatably arranged inside the opening and closing regulating component (43); the opening and closing regulating component (43) comprises a horizontally movable U-shaped transmission frame (431); The processing shell (101) moves horizontally so that the heat dissipation fan (102) and the hollow support shaft (201) are engaged and matched, and the hollow support shaft (201) drives the heat dissipation fan (102) to rotate synchronously, thereby dissipating heat outside the rotational molding component (3). During the docking process, the U-shaped transmission frame (431) moves horizontally, the first opening and closing component (41) and the second opening and closing component (42) rotate synchronously in opposite directions, and the sealing plug (204) moves upward, so that part of the flowing gas flows in from the air inlet duct (202), enters the interior of the heat dissipation groove (302) through the corresponding vents along the tangential direction, and flows out from the other vent along the heat dissipation groove (302) in the spiral direction, and finally flows out through the air outlet duct (203) to dissipate heat inside the rotational molding component (3).

2. A heat dissipation and cooling device for a rotational molding mold cavity according to claim 1, characterized in that: The processing assembly (1) further comprises a horizontal support plate (103), the upper surface of the horizontal support plate (103) being symmetrically fixedly connected to a guide rail (104), the inner side of the guide rail (104) being rotatably connected to a drive screw (105), the processing housing (101) being slidably disposed between the two guide rails (104), and the processing housing (101) and the drive screw (105) being threadedly engaged; An opening and closing door panel (106) is symmetrically slidably arranged at the bottom of the processing housing (101); a first transmission wheel (107) is rotatably connected to one side of the guide rail (104); the first transmission wheel (107) is fixedly connected to a corresponding driving screw rod (105); and a vertical support plate (108) is fixedly connected between the two guide rails (104).

3. A heat dissipation and cooling device for a rotational molding mold cavity according to claim 2, characterized in that: A heat dissipation pipe is installed on a side of the processing housing (101) away from the first transmission wheel (107); a ventilation plate (109) is hingedly connected to the surface of the heat dissipation pipe; a heat dissipation support plate (110) is fixedly connected to the inner wall of the heat dissipation pipe; the heat dissipation fan (102) is rotatably arranged on a side of the heat dissipation support plate (110); a docking column is fixedly connected to the axis of the heat dissipation fan (102); and a clamping block (111) is symmetrically fixedly connected to the side surface of the docking column.

4. The heat dissipation and cooling device for a rotational molding mold cavity according to claim 3, characterized in that: The adjustment drive assembly (2) further comprises a drive support plate (205) fixedly connected to the upper surface of the horizontal support plate (103); a transmission adjustment groove is provided on a side of the drive support plate (205) close to the vertical support plate (108); a transmission disc (206) is rotatably arranged inside the transmission adjustment groove; an electromagnet (207) is fixedly mounted on one side of the transmission disc (206); and a transmission telescopic rod (208) is symmetrically fixedly connected to a side of the transmission disc (206) close to the electromagnet (207); A transmission gear (209) is fixedly connected between the two transmission telescopic rods (208); an adjustment reset spring (210) is symmetrically fixedly connected between the transmission gear (209) and the transmission disc (206); the adjustment reset spring (210) is sleeved on the outside of the corresponding transmission telescopic rod (208); a side of the transmission gear (209) away from the electromagnet (207) is fixedly connected to a second transmission wheel (211) via a telescopic column; the second transmission wheel (211) is connected to the two first transmission wheels (107) via a transmission belt; and a side of the second transmission wheel (211) is rotatably connected to a side of the vertical support plate (108) via a rotating shaft.

5. The heat dissipation and cooling device for a rotational molding mold cavity according to claim 4, characterized in that: A driving gear (212) is provided on the side of the hollow support shaft (201) away from the cooling fan (102), and the driving gear (212) and the transmission gear (209) are meshed with each other. A mounting groove is provided on the upper surface of the driving support plate (205), and a driving motor (213) is fixedly installed in the mounting groove via a motor seat. The output shaft of the driving motor (213) is fixed to the end of the hollow support shaft (201); The hollow support shaft (201) is provided with a first docking groove (214) at the axis center of one side surface close to the heat dissipation fan (102), and a second docking groove (215) is symmetrically provided on the inner side wall of the first docking groove (214).

6. The heat dissipation and cooling device for a rotational molding mold cavity according to claim 5, characterized in that: A first transmission column (216) is symmetrically slidably disposed at one end of the hollow support shaft (201) close to the cooling fan (102), a second transmission column (217) coaxially disposed inside the hollow support shaft (201) is slidably disposed, the second transmission column (217) passes through the first docking groove (214), and a trapezoidal transmission block (218) is symmetrically fixedly connected to the side surface of the second transmission column (217); A partition plate (219) is symmetrically fixedly connected inside the hollow support shaft (201); an elastic element is fixedly connected between one side of the trapezoidal transmission block (218) and the corresponding partition plate (219); the two partition plates (219) divide the inside of the hollow support shaft (201) into an air inlet chamber, an isolation chamber, and an air outlet chamber; an L-shaped ventilation pipe is symmetrically arranged on the side surface of the hollow support shaft (201); one end of the L-shaped ventilation pipe is connected to the air inlet chamber or the air outlet chamber, and the other end of the L-shaped ventilation pipe is connected to the rotational molding groove (301).

7. The heat dissipation and cooling device for a rotational molding mold cavity according to claim 6, characterized in that: A blocking support plate (220) is fixedly connected to one side of the partition plate (219); a sliding guide column (221) is fixedly connected to the upper surface of the blocking plug (204); one end of the sliding guide column (221) that passes through the blocking support plate (220) is fixedly connected to a mounting frame; an adjusting transmission wheel (222) is rotatably connected inside the mounting frame; the adjusting transmission wheel (222) is rollingly engaged with an inclined surface of a trapezoidal transmission block (218); a blocking reset spring (223) is fixedly connected between the mounting frame and the blocking support plate (220); and the blocking reset spring (223) is sleeved on the outside of the sliding guide column (221); The hollow support shaft (201) is symmetrically provided with docking positioning grooves (224) on the circumferential side surface, a docking telescopic column is fixedly connected inside the docking positioning groove (224), a docking positioning ball (225) is fixedly connected to one end of the docking telescopic column, a docking reset spring (226) is fixedly connected between the docking positioning groove and the docking positioning ball (225), and the docking reset spring (226) is sleeved on the outside of the docking telescopic column.

8. The heat dissipation and cooling device for a rotational molding mold cavity according to claim 7, characterized in that: The roto-molding assembly (3) further comprises a roto-molding outer shell (303) symmetrically and slidably arranged on the circumferential side of the hollow support shaft (201), two circumferential side of the roto-molding outer shells (303) are fixedly connected with extension mounting plates, the two extension mounting plates are fixedly connected with each other by bolts, the roto-molding groove (301) and the heat dissipation groove (302) are both arranged inside the roto-molding outer shell (303), and the inner wall of the roto-molding outer shell (303) is symmetrically and fixedly connected with a U-shaped air guide duct (304); One end of the U-shaped air duct (304) is connected to the corresponding vent, and the other end of the U-shaped air duct (304) is connected to the heat dissipation groove (302), and the opening of the U-shaped air duct (304) located inside the heat dissipation groove (302) faces the tangent direction of the heat dissipation groove (302), and the inner wall of the rotationally molded outer shell (303) is symmetrically provided with limit grooves (305), and the limit grooves (305) are snap-fitted with corresponding docking positioning balls (225).

9. The heat dissipation and cooling device for a rotational molding mold cavity according to claim 8, characterized in that: The first opening and closing component (41) comprises an opening and closing rotating shaft (411), a plurality of first mounting tubes are fixedly connected to a circumferential side surface of the opening and closing rotating shaft (411), a first opening and closing fan blade (412) is fixedly connected between the first mounting tubes, an adjusting disc (413) is fixedly connected to one end of the opening and closing rotating shaft (411), a first extension block is fixedly connected to a circumferential side surface of the adjusting disc (413), and a first opening and closing transmission column (414) is fixedly connected to a side surface of the first extension block close to the first opening and closing fan blade (412); The second opening and closing assembly (42) comprises a plurality of second mounting tubes slidably arranged on the peripheral side of the opening and closing rotating shaft (411), the first mounting tubes and the second mounting tubes being staggered and fitted with each other, the second opening and closing blades (421) being fixedly connected between the second mounting tubes, one end of the second mounting tube being fixedly connected to a hollow adjustment disk (422), the peripheral side of the hollow adjustment disk (422) being fixedly connected to a second extension block, and a side of the second extension block away from the second opening and closing blades (421) being fixedly connected to a second opening and closing transmission column (423).

10. The heat dissipation and cooling device for a rotational molding mold cavity according to claim 9, characterized in that: The opening and closing regulating component (43) further comprises an opening and closing support frame (432) fixedly connected to the lower surfaces of the air inlet duct (202) and the air outlet duct (203); the opening and closing rotating shaft (411) is rotatably connected to the inner wall of the opening and closing support frame (432); an adjusting support frame (433) is fixedly connected to the peripheral side surface of the opening and closing support frame (432); opening and closing transmission grooves (434) are provided on two opposite inner side walls of the adjusting support frame (433); and the U-shaped transmission frame (431) is slidably arranged between the two opening and closing transmission grooves (434); An opening and closing reset spring (435) is fixedly connected between the U-shaped transmission frame (431) and the inner wall of the adjustment support frame (433); one end of the first transmission column (216) is fixedly connected to a side surface of the corresponding U-shaped transmission frame (431); and the opening and closing reset spring (435) is sleeved on the outside of the first transmission column (216); A transmission channel (436) is provided on the inner side of the U-shaped transmission frame (431); the opening and closing rotation shaft (411) passes through one end of the U-shaped transmission frame (431) and is slidably arranged inside the transmission channel (436); an adjustment slide groove (437) is symmetrically provided on the inner side of the U-shaped transmission frame (431); and the first opening and closing transmission column (414) and the second opening and closing transmission column (423) are slidably arranged inside the corresponding adjustment slide grooves (437).

Images