Rotating wheel type plastic forming mold surface dew removal and dehumidification structure and method

Abstract

The invention relates to the technical field of plastic forming machinery, in particular to a rotating wheel type plastic forming mold surface dew removal and dehumidification structure and method.The rotating wheel type plastic forming mold surface dew removal and dehumidification structure comprises a driver and a dehumidification rotating wheel driven by the driver, air guide pipes are arranged on the two sides of the dehumidification rotating wheel, and a rotatable regeneration connecting assembly is connected to the middle of the dehumidification rotating wheel in a penetrating mode; the dehumidification rotating wheel is divided into a regeneration area and a functional area by the regeneration connecting assembly, the proportion of the area of the regeneration area to the cross section area of the dehumidification rotating wheel is P, and P is larger than or equal to 20% and smaller than 25%. When the driver drives the dehumidification rotating wheel to rotate, the regeneration connecting assembly and the dehumidification rotating wheel are simultaneously driven by the speed reduction assembly to rotate in the same direction in a differential mode. The exposure time of the dehumidification rotating wheel in the occupied area of the regeneration connecting assembly is adjusted through the rotating speed difference, and rapid regeneration of the adsorption medium is ensured.

Description

Technical Field

[0001] The invention relates to the technical field of plastic molding machinery, in particular to a rotary wheel type plastic molding die surface dehumidification structure and method. Background Art

[0002] The wheel-type plastic molding mold surface dehumidification structure accurately controls the mold environment humidity through the rotary dehumidification technology. Its core functions include inhibiting condensation, ensuring product quality, extending mold life and improving production efficiency. Its technical principle is based on the adsorption-regeneration cycle system of the honeycomb rotor. It generates low dew point dry air (up to -70°C) by adsorbing moisture in the treatment area, and desorbing moisture at high temperature in the regeneration area. At the same time, it combines waste heat recovery to reduce energy consumption. This structure is particularly suitable for high-precision injection molding (such as PET bottle embryos, optical lenses) and processes that require rapid cooling. Compared with traditional refrigeration or compression dehumidification, it has both ultra-low dew point control and large air volume adaptability, effectively solving the problems of oxidation and water stains caused by condensation on the mold surface, and allowing the mold to operate efficiently in a low temperature environment.

[0003] The Chinese patent with the publication number CN204193755U discloses a rotary mold dehumidifier, including an adsorption wheel regeneration system and a drying system; the regeneration system includes a regeneration filter, a regeneration fan and a heater, and the atmosphere enters the regeneration area of ​​the adsorption wheel after passing through the regeneration filter, the regeneration fan and the heater in sequence; the drying system includes a return air filter, a return air cooler, a drying fan, an outlet air cooler and a water storage tank, and the mold return air or the atmosphere enters the processing area of ​​the adsorption wheel after being filtered, cooled and dried by the return air, and then outputs from the processing area of ​​the adsorption wheel through the outlet air cooler and dries the outlet air; the water storage tank receives the dew condensed on the return air cooler, and the cooling water inlet end of the outlet air cooler is provided with a regulating valve. The utility model can reduce the temperature of the drying air, so that the mold surface will not condense and improve the quality of plastic products. The water storage tank has an automatic drainage function to discharge the condensed water out of the machine in time to achieve stable dehumidification performance.

[0004] The existing rotary plastic molding mold surface dehumidification structure has obvious shortcomings. The regeneration connection component usually occupies 25% of the total area of ​​the dehumidification wheel, that is, a 90-degree fan-shaped area. It is not convenient to adjust the proportion of the regeneration connection component according to the actual humidity demand, resulting in redundant regeneration area in low humidity environment, but insufficient at high humidity. Moreover, since the regeneration connection component is fixed inside the dehumidification structure, if the proportion is forcibly reduced, the hot air coverage will be directly reduced. The desorption efficiency needs to be compensated by increasing the regeneration temperature or increasing the air volume, resulting in increased energy consumption. It is also inconvenient to clean the dehumidification wheel, and dust can easily clog the micropores of the honeycomb wheel, affecting the performance of the desiccant.

[0005] Therefore, a rotary plastic molding mold surface dehumidification structure and method are provided, which can utilize the rotation speed difference between the regeneration connection component and the dehumidification wheel to compensate for the reduction in hot air coverage caused by reducing the proportion of the regeneration component, and is convenient for cleaning the dehumidification wheel. Summary of the invention

[0006] In order to solve the problem that reducing the proportion will directly reduce the hot air coverage, the desorption efficiency needs to be compensated by increasing the regeneration temperature or increasing the air volume, resulting in increased energy consumption, and it is inconvenient to clean the dehumidification wheel, the present application provides a rotary plastic molding mold surface dehumidification structure and method.

[0007] The technical solution of the present invention is: a rotary plastic molding mold surface dehumidification and dehumidification structure, including a driver and a dehumidification wheel driven by the driver, air ducts are arranged on both sides of the dehumidification wheel, and a rotatable regeneration connection component is connected through the middle of the dehumidification wheel; the regeneration connection component divides the dehumidification wheel into a regeneration area and a functional area, and the ratio of the regeneration area area to the cross-sectional area of ​​the dehumidification wheel is P, 20%≤P<25%, and when the driver drives the dehumidification wheel to rotate, the regeneration connection component and the dehumidification wheel are simultaneously driven to rotate in the same direction with a differential speed through the reduction component, and the rotation speed of the dehumidification wheel is greater than the rotation speed of the regeneration connection component.

[0008] Furthermore, the regeneration connection component includes two hot air boxes connected by a rotating shaft and two rotating rings fixedly connected to the two hot air boxes. The two hot air boxes are symmetrically arranged on both sides of the dehumidification wheel and are connected to the regeneration zone. The rotating rings and the air guide pipes on both sides of the dehumidification wheel respectively form annular channels to allow the heated air flowing through the regeneration zone to pass through. The driver drives the two hot air boxes to rotate synchronously on both sides of the dehumidification wheel through the reduction assembly. The hot air boxes are arranged on both sides of the dehumidification wheel, and the ratio of the area in contact with the dehumidification wheel to the cross-sectional area of ​​the dehumidification wheel is P. Under the premise that the input air volume remains unchanged, the passage By reducing the area occupied by the hot air box to increase the air volume flowing through per unit time, the speed of the drying and dehumidification wheel regeneration zone can be increased, so that the airflow path in the regeneration zone is more concentrated, the wind speed is increased, and the desorption efficiency is improved. However, it should be noted that although high wind speed can enhance the heat exchange intensity between the hot air in the regeneration zone and the wheel, shorten the moisture desorption time, and increase the theoretical desorption efficiency by about 10-15%, after the area of ​​the regeneration zone is reduced, the regeneration heating energy consumption can be reduced, but too high wind speed may reduce the contact time between the air and the wheel material, which will affect the desorption effect. Therefore, it is necessary to verify and find a suitable air volume range.

[0009] Furthermore, the air duct includes an upper air cylinder and a lower air cylinder, the top end of the rotating shaft is rotatably connected to the upper air cylinder through a connecting component, the bottom end of the rotating shaft is rotatably connected to the lower air cylinder through a connecting component, the two rotating rings are rotatably connected to the inner wall of the upper air cylinder and the lower air cylinder away from the dehumidification wheel through a sealing bearing 1 respectively, a filter plate is fixed to the inner side of each hot air box, an upper support plate is fixed to the bottom of the upper air cylinder, and one end of one of the rotating rings close to the dehumidification wheel is rotatably connected to the inner side of the upper support plate through one of the sealing bearings 2, a bottom plate is fixed to the top of the lower air cylinder, and the other end of the rotating ring close to the dehumidification wheel is rotatably connected to the inner side of the bottom plate through another sealing bearing 2.

[0010] Furthermore, a lower support plate is fixed to the top of the bottom plate, a base plate is fixed to the outer side of the lower support plate, a sealing box is fixed to the bottom of the base plate, three vertical rods are fixed to the top of the base plate, the dehumidification wheel is rotatably connected to the top of the lower support plate, and the top of the rotating ring near the bottom end of the rotating shaft is fitted with the bottom of the dehumidification wheel.

[0011] Furthermore, the upper support plate is slidably connected to the outer sides of the three vertical rods, an elastic member is fixed to one end of each vertical rod away from the base plate, and the other end of each elastic member is fixed to the top of the upper support plate. The elastic member squeezes the rotating ring rotatably connected to the inner side of the upper support plate onto the top of the dehumidification wheel.

[0012] Furthermore, the driver is fixed to the outside of one of the vertical rods, and a transmission member is provided between the driver and the reduction assembly for transmission connection.

[0013] Furthermore, the reduction assembly is configured to transmit the power of the driver to one of the rotating rings after deceleration, and the rotation speed of the dehumidification wheel is greater than the rotation speed of the rotating ring, and the two hot air boxes and the dehumidification wheel rotate in the same direction at differential speeds, thereby compensating for the shortened drying time of the dehumidification wheel per unit time due to the reduction in the area occupied by the hot air boxes; the reduction assembly is a reducer fixed to the top of the lower guard plate, and the input end of the reducer is connected to the dehumidification wheel by setting a same-speed transmission part, and the transmission member is located at the bottom of the same-speed transmission part, and the output end of the reducer is connected to the rotating ring located at the bottom of the dehumidification wheel by setting a speed reduction transmission part.

[0014] Furthermore, a bevel gear four is fixed on the inner side of the lower air cylinder, a cleaning piece is arranged on the inner side of the bevel gear four, a cleaning brush is fixed on the outer side of the cleaning brush, and the cleaning piece is assembled to clean the bottom of the dehumidification wheel by utilizing the force of the rotating ring to drive the cleaning brush.

[0015] Furthermore, the cleaning part includes a bracket, which is fixed to the outer side of the hot air box on the inner side of the lower air cylinder, and a rotating rod is rotatably connected to the top of the bracket, and a bevel gear one is fixed to the side of the rotating rod away from the dehumidification wheel, and the bevel gear one is meshed with the bevel gear four, and a bevel gear two is fixed to the other end of the rotating shaft, and a round rod is rotatably connected to the inside of the rotating ring located on the inner side of the lower air cylinder, and a bevel gear three is fixed to the end of the round rod close to the rotating ring, and the bevel gear three is meshed with the bevel gear two, and a cleaning brush is fixed to the outer side of the round rod, and a collecting shell is fixed to the top of the bracket, an inclined plate is fixed to one side of the collecting shell, and a horizontal plate is fixed to the inner side of the collecting shell.

[0016] Further, the operation method of the rotary wheel type plastic molding mold surface dehumidification structure is as follows: S1. Reduce the area occupied by the regeneration connection component on the dehumidification wheel surface according to actual production needs, and set the speed ratio or differential ratio; S2. According to the set speed ratio or differential ratio, by adjusting the reduction component, the motor drives the regeneration connection component and generates a speed difference when the dehumidification wheel rotates; S3. According to the changes in actual production activities, the speed ratio or differential ratio is adjusted through the reducer; S4. When the regeneration connection assembly rotates, the cleaning brush cleans the bottom of the dehumidification wheel.

[0017] The beneficial effects of the present invention are as follows: (1) The present invention discloses a rotary plastic molding mold surface dehumidification structure and method. Under the premise that the air volume of the drying fan remains unchanged, the area occupied by the regeneration connection component is reduced compared with the prior art in which the regeneration connection component occupies 25% of the total area of ​​the dehumidification wheel, thereby increasing the flow rate of the dry gas through the dehumidification wheel and accelerating the desorption process of the adsorbent. In order to compensate for the shortened drying time, the deceleration component can make the speed of the regeneration connection component slower than that of the dehumidification wheel, thereby prolonging the residence time of the regenerated hot air on the wheel surface. The exposure time of the dehumidification wheel to the area occupied by the regeneration connection component is adjusted by the speed difference, thereby prolonging the hot air action time under the same area occupied by the regeneration connection component. Sufficient desorption can be achieved within a smaller area occupied by the regeneration connection component, thereby compensating for the defect of reduced hot air coverage area, improving the drying efficiency per unit time, and ensuring rapid regeneration of the adsorption medium.

[0018] (2) The present invention discloses a rotary wheel-type plastic molding mold surface dehumidification structure and method, which is provided with a cleaning member, a cleaning brush and a collection shell, and adopts a direct drive motor and a reducer combination to realize the same-direction differential rotation of the cleaning brush and the rotary wheel, thereby reducing energy consumption while ensuring the cleaning power. The rotational force of the regeneration connection component can be used to clean the impurities at the bottom of the dehumidification rotary wheel, and the dust and fiber (such as attachments on the surface of silica gel or molecular sieve adsorbent) in the honeycomb pores of the rotary wheel can be effectively removed, thereby avoiding the decrease in dehumidification efficiency and equipment overload caused by blockage.

[0019] (3) The present invention discloses a rotary plastic molding die surface dehumidification structure and method. Under the premise that the input air volume remains unchanged and 20%≤P<25%, the air volume flowing through the hot air box per unit time is increased by reducing the area occupied by the hot air box to increase the speed of the drying and dehumidification wheel regeneration zone, so that the air flow path in the regeneration zone is more concentrated and the wind speed is increased, thereby improving the desorption efficiency. The high wind speed can enhance the heat exchange intensity between the hot air in the regeneration zone and the wheel, shorten the water desorption time, and improve the theoretical desorption efficiency by about 10-15%. In addition, after the area of ​​the regeneration zone is reduced, the regeneration heating energy consumption can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0021] Figure 1 The overall structure provided by the present invention is schematically shown Figure 1 ; Figure 2 A schematic cross-sectional view of the overall structure provided by the present invention; Figure 3 for Figure 2 A magnified image of point A; Figure 4 for Figure 2 The enlarged view of point B; Figure 5 A schematic diagram of the structure of the upper air cylinder provided by the present invention; Figure 6 A schematic diagram of the dehumidification wheel structure provided by the present invention; Figure 7 A schematic diagram of the structure of the regeneration connection assembly provided by the present invention; Figure 8 A schematic diagram of the structure of the hot air box provided by the present invention; Fig. 9 The swivel structure provided by the present invention is schematically shown Figure 1 ; Fig.10 The swivel structure provided by the present invention is schematically shown Figure 2 ; Fig.11 A schematic diagram of the structure of the cleaning element provided by the present invention; Fig.12 for Fig.11 Enlarged view of point C; Fig.13 for Fig.11 The enlarged view of point D; Fig.14 The dehumidifier provided by the present invention is schematically shown in FIG. Figure 1 ; Fig.15 The dehumidifier provided by the present invention is schematically shown in FIG. Figure 2 .

[0022] In the figure: 1, substrate; 2, sealing box; 3, upper support plate; 4, lower support plate; 5, upper air cylinder; 6, rotating shaft; 7, lower air cylinder; 8, rotating ring; 9, hot air box; 91, filter plate; 10, dehumidification wheel; 101, spur gear one; 11, driver; 12, reducer; 121, spur gear three; 122, spur gear four; 13, bottom plate; 131, spur gear two; 14, cleaning part; 141, bracket; 142, rotating rod; 143, bevel gear two; 145, round rod; 146, bevel gear three; 147, bevel gear one; 15, bevel gear four; 16, cleaning brush; 17, collecting shell; 171, inclined plate; 172, horizontal plate; 18, dehumidifier; 181, air inlet; 182, air extraction; 183, air outlet; 184, exhaust. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be briefly introduced below in combination with the drawings and the description of the embodiments or the prior art. Obviously, the following description of the structure of the drawings is only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. It should be noted that the description of these embodiments is used to help understand the present invention, but does not constitute a limitation of the present invention.

[0024] like Figure 14-15 As shown, in the prior art, the rotary plastic molding mold surface dehumidification structure is arranged in the middle of the dehumidifier 18, and the exhaust part 182 is fixedly connected to the bottom of the mechanism, which includes a regeneration filter, a regeneration fan and a heater. The dry gas passes through the regeneration filter, the drying fan and the heater in sequence and then enters the inner side of the hot air box 9, and is discharged from the exhaust part 184 after passing through the dehumidification wheel 10; The air intake part 181 is fixedly connected to the bottom of this mechanism, and the air intake part 181 is located on one side of the exhaust part 182, which includes a return air filter, a return air cooler, a drying fan, an outlet air cooler and a water storage tank. The mold return air or the gas that needs to be dehumidified passes through the return air filter, the return air cooler, and the drying fan in turn, and then enters the dehumidification wheel 10 through the lower air cylinder 7. There is an adsorbent inside the dehumidification wheel 10, and then the air is output from the processing area of ​​the dehumidification wheel 10 through the upper air cylinder 5, the air outlet part 183, and the outlet air cooler to be dried.

[0025] Example: Figure 1-Figure 13As shown, a rotary plastic molding mold surface dehumidification and dehumidification structure includes a dehumidification wheel 10 and a driver 11, the driver 11 is connected to the dehumidification wheel 10 and the reduction assembly through a transmission member, the reduction assembly is reduced and connected with a regeneration connection assembly, the dehumidification wheel 10 is rotationally connected to the regeneration connection assembly, and the inner side of the dehumidification wheel 10 is rotatably connected with a rotating shaft 6; the rotatable regeneration connection assembly divides the dehumidification wheel 10 into a regeneration area and a functional area, the ratio of the regeneration area area to the cross-sectional area of ​​the dehumidification wheel 10 is P, and 20%≤P<25%, the dehumidification wheel 10 and the regeneration connection assembly are driven in the same direction and at a differential speed by the driver 11, and the rotation speed of the dehumidification wheel 10 is greater than the rotation speed of the regeneration connection assembly, and the regeneration connection assembly includes two hot air boxes 9 connected by the rotating shaft 6 and two hot air boxes 9 connected by the rotating shaft 6. The two hot air boxes 9 are fixedly connected to the two rotating rings 8, and the two hot air boxes 9 rotate synchronously at the top and bottom of the dehumidification wheel 10 by cooperating with the driver 11 and the reduction assembly; the hot air boxes 9 are arranged on both sides of the dehumidification wheel 10, and the ratio of the area in contact with the dehumidification wheel 10 to the cross-sectional area of ​​the dehumidification wheel 10 is equal to P; under the premise of unchanged air volume, the drying speed is increased by reducing the area occupied by the hot air boxes 9, thereby accelerating the drying of the dehumidification wheel 10; the reduction assembly is equipped to transmit the power of the driver 11 to the two rotating rings 8 after deceleration, and the rotation speed of the dehumidification wheel 10 is greater than the rotation speed of the rotating ring 8, and the two hot air boxes 9 and the dehumidification wheel 10 are made to rotate in the same direction with differential speed, so as to make up for the shortened drying time of the dehumidification wheel 10 per unit time due to the reduction in the area occupied by the hot air boxes 9.

[0026] Specifically, the driver 11 in the present application may be selected but not limited to a stepper motor or a servo motor or other optional solutions.

[0027] In the present embodiment, the size of the hot air box 9 can be selected according to actual production needs, that is, the value of its surface area P (20%≤P<25%) of the dehumidification wheel 10 is optional. In the present embodiment, taking 20% ​​as an example, the side of the hot air box 9 in contact with the dehumidification wheel 10 adopts a fluoroelastic material plane seal or positive pressure airflow isolation to prevent the heated air from leaking to the outside of the hot air box 9. Under the premise that the air volume of the drying fan remains unchanged, compared with the prior art in which the regeneration connection component occupies 25% of the total area of ​​the dehumidification wheel 10, the area occupied by the regeneration connection component is reduced, so that the flow rate of the dry gas through the dehumidification wheel 10 is increased, and the drying speed of the adsorption medium inside the dehumidification wheel 10 will also reduce the coverage area of ​​the dry gas, which will directly lead to a reduction in the effective drying area per unit time. In order to compensate for the shortened drying time, the deceleration component can make the speed of the regeneration connection component slower than that of the dehumidification wheel 10, thereby prolonging the residence time of the regenerated hot air on the wheel surface, and adjusting the dehumidification by the speed difference. The exposure time of the wet wheel 10 in the area occupied by the regeneration connection component is increased, thereby extending the hot air action time under the same area occupied by the regeneration connection component, and achieving sufficient desorption in a smaller area occupied by the regeneration connection component; under the premise of unchanged input air volume and 20%≤P<25%, the air volume flowing through per unit time is increased by reducing the area occupied by the hot air box 9 to increase the speed of the regeneration zone of the drying and dehumidifying wheel 10, so that the air flow path in the regeneration zone is more concentrated, the wind speed is increased, and the desorption efficiency is improved. However, it should be noted that although high wind speed can enhance the heat exchange intensity between the hot air in the regeneration zone and the wheel, shorten the water desorption time, and improve the theoretical desorption efficiency by about 10-15%, and after the area of ​​the regeneration zone is reduced, the regeneration heating energy consumption can be reduced, but too high wind speed may reduce the contact time between the air and the wheel material, which in turn affects the desorption effect. Therefore, the effect change outside the value of 20%≤P<25% requires additional verification and finding a suitable air volume range.

[0028] Specifically, the top end of the rotating shaft 6 is rotatably connected to the upper air cylinder 5 through a connecting component, and the bottom end of the rotating shaft 6 is rotatably connected to the lower air cylinder 7 through a connecting component. The two rotating rings 8 are rotatably connected to the inner wall of the upper air cylinder 5 and the lower air cylinder 7 on the side away from the dehumidification wheel 10 respectively through a sealed bearing 1. A filter plate 91 is fixed to the inner side of each hot air box 9, and an upper support plate 3 is fixed to the bottom of the upper air cylinder 5, and one end of one of the rotating rings 8 close to the dehumidification wheel 10 is rotatably connected to the inner side of the upper support plate 3 through one of the sealed bearings 2. A bottom plate 13 is fixed to the top of the lower air cylinder 7, and the other end of the rotating ring 8 close to the dehumidification wheel 10 is rotatably connected to the inner side of the upper support plate 3 through another sealed bearing 2. The dehumidifier wheel 10 is rotatably connected to the inner side of the bottom plate 13, a lower support plate 4 is fixed to the top of the bottom plate 13, a base plate 1 is fixed to the outer side of the lower support plate 4, a sealing box 2 is fixed to the bottom of the base plate 1, three vertical rods are fixed to the top of the base plate 1, and a driver 11 is fixed to the outer side of one of the vertical rods. The dehumidifier wheel 10 is rotatably connected to the top of the lower support plate 4, and the top of the rotating ring 8 near the bottom end of the rotating shaft 6 fits with the bottom of the dehumidifier wheel 10. The upper support plate 3 is slidably connected to the outer side of the three vertical rods, and an elastic member is fixed to the end of each vertical rod away from the base plate 1, and the other end of each elastic member is fixed to the top of the upper support plate 3. The elastic member squeezes the rotating ring 8 rotatably connected to the inner side of the upper support plate 3 onto the top of the dehumidifier wheel 10.

[0029] In this embodiment, after the gas to be dehumidified enters the sealing box 2, it enters the dehumidification wheel 10 through the rotating ring 8 and the lower air cylinder 7 at the bottom of the dehumidification wheel 10 under the action of pressure, and is finally discharged from the rotating ring 8 and the upper air cylinder 5 at the top of the dehumidification wheel 10. The moisture in the gas will be adsorbed by the adsorption medium inside the dehumidification wheel 10 when passing through the dehumidification wheel 10, so that the moisture of the air passing through the dehumidification wheel 10 is removed; the dry gas enters the closed space formed by the rotating ring 8 and the upper air cylinder 5 at the top of the dehumidification wheel 10 under the action of pressure, and then enters the inner side of the hot air box 9 at the top of the dehumidification wheel 10. When the dry gas passes through the filter plate 91, the filter plate 91 removes impurities in the dry gas. Then the dry gas passes through the dehumidification wheel 10, and the moisture adsorbed on the dehumidification wheel 10 encounters the dry gas, is separated from the adsorption medium, and is discharged out of the machine together with the dry air, thereby restoring the drying processing function of the dehumidification wheel 10.

[0030] Specifically, a transmission member is provided between the driver 11 and the reduction assembly for transmission connection. The reduction assembly can be configured as a reducer 12 fixed to the top of the lower guard plate. Common choices for the reducer 12 include worm gear reducers, gear reducers, harmonic reducers, RV reducers or bevel gear reducers and other replaceable models. The input end of the reducer 12 is transmission-connected to the dehumidification wheel 10 through a same-speed transmission part, and the transmission member is located at the bottom of the same-speed transmission part. The output end of the reducer 12 is transmission-connected to the rotating ring 8 located at the bottom of the dehumidification wheel 10 through a speed reduction transmission part.

[0031] In this embodiment, the staff starts the driver 11, and the output end of the driver 11 drives the reducer 12 to rotate through the transmission member. The transmission member can be a sprocket and chain combination or a pulley and belt combination transmission or other alternative transmission methods. The same speed transmission part and the speed reduction transmission part are both spur gear sets or bevel gear sets for transmission. In the drawings of this application, the same speed transmission part and the speed reduction transmission part show the spur gear set transmission. The gear set of the same speed transmission part includes a spur gear three 121 and a spur gear one 101, and the spur gear one 101 is meshed with the spur gear two 131. The gear set of the speed reduction transmission part includes a spur gear four 122 and a spur gear two 131, and the spur gear four 122 and the spur gear two 131 are meshed. The input end of the reducer 12 drives the dehumidification wheel 10 to rotate at the same speed as the output end of the driver 11 with the rotating shaft 6 as the axis through the same speed transmission part. The output end of the reducer 12 drives the rotating ring 8 to rotate through the reduction transmission part. The rotating ring 8 rotates in the same direction as the dehumidification wheel 10 at a speed lower than the dehumidification wheel 10 by a certain proportion, so that the differential rotation of the hot air box 9 and the dehumidification wheel 10 can cover more areas, thereby maintaining the drying efficiency.

[0032] Specifically, a bevel gear 15 is fixed to the inner side of the lower air cylinder 7, a cleaning member 14 is arranged on the inner side of the bevel gear 15, a cleaning brush 16 is fixed to the outer side of the cleaning brush 16, the cleaning member 14 is equipped to drive the cleaning brush 16 to clean the bottom of the dehumidification wheel 10 by utilizing the force of the rotation of the rotating ring 8, the cleaning member 14 includes a bracket 141, the bracket 141 is fixed to the outer side of the hot air box 9 on the inner side of the lower air cylinder 7, a rotating rod 142 is rotatably connected to the top of the bracket 141, and a conical Gear one 147, and bevel gear one 147 and bevel gear four 15 are meshed, bevel gear two 143 is fixed to the other end of the rotating shaft 6, and a round rod 145 is rotatably connected to the inside of the rotating ring 8 located on the inner side of the lower air cylinder 7, and a bevel gear three 146 is fixed to the end of the round rod 145 close to the rotating ring 8, and the bevel gear three 146 is meshed with the bevel gear two 143, and a cleaning brush 16 is fixed to the outside of the round rod 145, and a collecting shell 17 is fixed to the top of the bracket 141, and an inclined plate 171 is fixed to one side of the collecting shell 17, and a horizontal plate 172 is fixed to the inner side of the collecting shell 17.

[0033] In this embodiment, when the rotating ring 8 inside the lower cylinder 7 rotates, the rotating ring 8 drives the bracket 141 to rotate around the rotating shaft 6 through the hot air box 9, and the bracket 141 drives the bevel gear 1 147 to rotate around the rotating shaft 6 through the rotating shaft 6. The bevel gear 1 147 drives the rotating rod 142 to rotate through the meshing action with the bevel gear 4 15. The rotating rod 142 drives the round rod 145 to rotate through the bevel gear 2 143 and the bevel gear 3 146. The round rod 145 drives the cleaning brush 16 to rotate. The cleaning brush 16 brushes away the debris at the bottom of the dehumidification wheel 10 and cleans the debris at the bottom of the dehumidification wheel 10 into the inside of the collecting shell 17. The inclined plate 171 prevents the gas to be dehumidified from being blown into the inside of the mobile phone, thereby preventing impurities from being blown up. The horizontal plate 172 prevents debris from flying out from the inside of the collecting shell 17.

[0034] Specifically, the operation method of the rotary plastic molding mold surface dehumidification structure is as follows: S1. Reduce the area occupied by the regeneration connection assembly on the surface of the dehumidification wheel 10 according to actual production needs, and set the speed ratio or differential ratio; The following is a calculation method that may be applicable to the above speed adjustment: For example, when the area occupied by the hot air box 9 is reduced from 25% to 20%, the theoretical formula is: the original hot air box 9 does not rotate (the speed is 0), the speed of the dehumidification wheel 10 is n, then the drying area per unit time is S original = 25% × n × t; After the area is reduced to 20%, differential rotation is required to make the coverage area per unit time equivalent, that is: 20%×(n+Δn)×t=25%×n×t, and the solution is that the speed needs to be increased: Δn= 0.25n (i.e., an increase of 25%); Therefore, the hot air box 9 needs to rotate in the same direction as the dehumidification wheel 10 with a speed difference of 25%; If the original speed is 10r / h, the speed of the hot air box 9 needs to reach 2.5r / h after adjustment (differential speed ratio 1:4).

[0035] S2. According to the set speed ratio or differential ratio, by adjusting the speed reduction component, the driver 11 drives the regeneration connection component and generates a speed difference when the dehumidification wheel 10 rotates; S3, adjusting the speed ratio or differential ratio through the reducer 12 according to the changes in actual production activities; S4. When the regeneration connection assembly rotates, the cleaning brush 16 cleans the bottom of the dehumidification wheel 10.

[0036] Working principle: After the gas to be dehumidified enters the sealing box 2, the moisture in the gas will be adsorbed by the adsorption medium inside the dehumidification wheel 10 when passing through the dehumidification wheel 10, and the dry gas enters the inner side of the hot air box 9 on the top of the dehumidification wheel 10. The moisture inside the dehumidification wheel 10 is separated from the adsorption medium and discharged out of the machine together with the dry air.

[0037] In this process, under the premise that the air volume of the drying fan remains unchanged, the area occupied by the regeneration connection component is reduced, which directly leads to a reduction in the effective drying area per unit time. In order to compensate for the shortened drying time, the deceleration component can make the speed of the regeneration connection component slower than the dehumidification wheel 10, so as to achieve sufficient desorption within a smaller area occupied by the regeneration connection component.

[0038] The staff starts the driver 11, and the output end of the driver 11 drives the reducer 12 to rotate through the transmission member, and the input end of the reducer 12 drives the dehumidification wheel 10 to rotate at the same speed as the output end of the driver 11 with the rotating shaft 6 as the axis through the same speed transmission part. The output end of the reducer 12 drives the rotating ring 8 to rotate through the reduction transmission part, and the rotating ring 8 rotates in the same direction as the dehumidification wheel 10 at a speed lower than the dehumidification wheel 10 by a certain proportion, so that the differential rotation of the hot air box 9 and the dehumidification wheel 10 can cover more areas; When the rotating ring 8 inside the lower cylinder 7 rotates, the cleaning member 14 drives the cleaning brush 16 to rotate, and the cleaning brush 16 brushes away the debris at the bottom of the dehumidification wheel 10 and cleans the debris at the bottom of the dehumidification wheel 10 into the collection shell 17.

[0039] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the protection scope of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A rotary plastic molding mold surface dehumidification structure, comprising a driver (11) and a dehumidification rotary wheel (10) driven by the driver (11), wherein air guide pipes are arranged on both sides of the dehumidification rotary wheel (10), characterized in that: A rotatable regeneration connection component is connected through the middle of the dehumidification wheel (10); the regeneration connection component divides the dehumidification wheel (10) into a regeneration area and a functional area, the ratio of the area of ​​the regeneration area to the cross-sectional area of ​​the dehumidification wheel (10) is P, 20%≤P<25%, when the driver (11) drives the dehumidification wheel (10) to rotate, the regeneration connection component and the dehumidification wheel (10) are driven to rotate in the same direction at a differential speed through the reduction component, and the rotation speed of the dehumidification wheel (10) is greater than the rotation speed of the regeneration connection component.

2. The rotary wheel type plastic molding die surface dehumidification structure according to claim 1, characterized in that: The regeneration connection assembly comprises two hot air boxes (9) connected by a rotating shaft (6) and two rotating rings (8) fixedly connected to the two hot air boxes (9). The two hot air boxes (9) are symmetrically arranged on both sides of the dehumidification wheel (10) and are connected to the regeneration zone. The rotating rings (8) and the air guide pipes on both sides of the dehumidification wheel (10) respectively form annular channels to allow heated air flowing through the regeneration zone to pass through. The driver (11) drives the two hot air boxes (9) to rotate synchronously on both sides of the dehumidification wheel (10) through the reduction assembly. The hot air boxes (9) are arranged on both sides of the dehumidification wheel (10), and the ratio of the area in contact with the dehumidification wheel (10) to the cross-sectional area of ​​the dehumidification wheel (10) is equal to P.

3. The rotary wheel type plastic molding die surface dehumidification structure according to claim 2, characterized in that: The air guide pipe comprises an upper air cylinder (5) and a lower air cylinder (7); the top end of the rotating shaft (6) is rotatably connected to the upper air cylinder (5) through a connecting component; the bottom end of the rotating shaft (6) is rotatably connected to the lower air cylinder (7) through a connecting component; two rotating rings (8) are rotatably connected to the inner wall of the upper air cylinder (5) and the lower air cylinder (7) on a side away from the dehumidification wheel (10) through a sealing bearing 1 respectively; a filter plate (91) is fixed to the inner side of each hot air box (9); an upper support plate (3) is fixed to the bottom of the upper air cylinder (5); and one end of one of the rotating rings (8) close to the dehumidification wheel (10) is rotatably connected to the inner side of the upper support plate (3) through one of the sealing bearings 2; a bottom plate (13) is fixed to the top of the lower air cylinder (7); and one end of the other rotating ring (8) close to the dehumidification wheel (10) is rotatably connected to the inner side of the bottom plate (13) through another sealing bearing 2.

4. The rotary wheel type plastic molding die surface dehumidification structure according to claim 3, characterized in that: A lower support plate (4) is fixed on the top of the bottom plate (13), a base plate (1) is fixed on the outer side of the lower support plate (4), a sealing box (2) is fixed on the bottom of the base plate (1), three vertical rods are fixed on the top of the base plate (1), the dehumidification wheel (10) is rotatably connected to the top of the lower support plate (4), and the top of the rotating ring (8) near the bottom end of the rotating shaft (6) is in contact with the bottom of the dehumidification wheel (10).

5. The rotary wheel type plastic molding die surface dehumidification structure according to claim 4, characterized in that: The upper support plate (3) is slidably engaged with the outer sides of the three vertical rods, an elastic member is fixed to one end of each vertical rod away from the base plate (1), and the other end of each elastic member is fixed to the top of the upper support plate (3), and the elastic member squeezes the rotating ring (8) rotatably connected to the inner side of the upper support plate (3) onto the top of the dehumidification wheel (10).

6. The rotary wheel type plastic molding die surface dehumidification structure according to claim 3, characterized in that: The driver (11) is fixed to the outside of one of the vertical rods, and a transmission member is provided between the driver (11) and the speed reduction assembly for transmission connection.

7. The rotary wheel type plastic molding die surface dehumidification structure according to claim 6, characterized in that: The deceleration component is configured to transmit the power of the driver (11) to one of the rotating rings (8) after deceleration, and the rotation speed of the dehumidification wheel (10) is greater than the rotation speed of the rotating ring (8), and the two hot air boxes (9) and the dehumidification wheel (10) are caused to rotate in the same direction at a differential speed, thereby compensating for the shortening of the drying time of the dehumidification wheel (10) per unit time due to the reduction in the area occupied by the hot air box (9); the deceleration component is a reducer (12) fixed to the top of the lower guard plate, the input end of the reducer (12) is transmission-connected to the dehumidification wheel (10) by arranging a same-speed transmission part, and the transmission member is located at the bottom of the same-speed transmission part, and the output end of the reducer (12) is transmission-connected to the rotating ring (8) located at the bottom of the dehumidification wheel (10) by arranging a speed reduction transmission part.

8. The rotary wheel type plastic molding die surface dehumidification structure according to claim 3, characterized in that: A bevel gear four (15) is fixed on the inner side of the lower air cylinder (7), a cleaning member (14) is arranged on the inner side of the bevel gear four (15), a cleaning brush (16) is fixed on the outer side of the cleaning brush (16), and the cleaning member (14) is configured to clean the bottom of the dehumidification wheel (10) by driving the cleaning brush (16) through the force of the rotation of the rotating ring (8).

9. The rotary wheel type plastic molding die surface dehumidification structure according to claim 8, characterized in that: The cleaning member (14) comprises a bracket (141), the bracket (141) being fixed to the outside of the hot air box (9) inside the lower air cylinder (7), a rotating rod (142) being rotatably connected to the top of the bracket (141), a bevel gear 1 (147) being fixed to the side of the rotating rod (142) away from the dehumidification wheel (10), and the bevel gear 1 (147) being meshed with the bevel gear 4 (15), and a bevel gear 2 (143) being fixed to the other end of the rotating shaft (6), and being located at the lower air cylinder (7). A round rod (145) is rotatably connected to the inner rotating ring (8), a bevel gear three (146) is fixed to one end of the round rod (145) close to the rotating ring (8), the bevel gear three (146) is meshed with the bevel gear two (143), a cleaning brush (16) is fixed to the outer side of the round rod (145), a collecting shell (17) is fixed to the top of the bracket (141), an inclined plate (171) is fixed to one side of the collecting shell (17), and a horizontal plate (172) is fixed to the inner side of the collecting shell (17).

10. The method for operating the rotary wheel type plastic molding die surface dehumidification structure according to claim 9, characterized in that: S1. reducing the area occupied by the regeneration connection assembly on the surface of the dehumidification wheel (10) according to actual production requirements, and setting a rotation speed ratio or a differential speed ratio; S2, according to the set speed ratio or differential speed ratio, by adjusting the reduction component, so that the driver (11) drives the regeneration connection component and the dehumidification wheel (10) to rotate, generating a speed difference; S3, adjusting the speed ratio or differential ratio through the reducer (12) according to changes in actual production activities; S4. When the regeneration connection assembly rotates, the cleaning brush (16) cleans the bottom of the dehumidification wheel (10).

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