High seal dust cover blow molding device

Abstract

The application relates to the field of blow molding production technology, in particular to a high-sealing dust cover blow molding device which comprises a base, a fixed mold module, a movable mold module and a cooling device, the fixed mold module is connected to the surface of the base, the movable mold module is slidingly connected to the surface of the base, the cooling device comprises a circulating water tank, a water inlet pipeline, a water outlet pipeline and a power assembly, a cooling water channel I is arranged in the fixed mold module, a cooling water channel II is arranged in the movable mold module, the cooling water channel I is communicated with the cooling water channel II, one end of the water inlet pipeline is connected to the surface of the circulating water tank, the other end of the water inlet pipeline is connected to the surface of the fixed mold module, one end of the water outlet pipeline is connected to the surface of the movable mold module, the other end of the water outlet pipeline is connected to the surface of the circulating water tank, and the power assembly is connected to the inner wall of the cooling water channel I. In the application, the circulating water tank, the water outlet pipeline, the water inlet pipeline and the power assembly are arranged, the temperature of a cavity is lowered, the inner wall of the cavity is not prone to being in a high-temperature state for a long time, the period of cooling and molding of glue is shortened, and therefore the production cost of the dust cover is reduced.

Description

TECHNICAL FIELD

[0001] The application relates to the field of blow molding production technology, in particular to a high-sealing dust cover blow molding device. BACKGROUND

[0002] The dust cover is a device with a protective effect, which is mainly used for protecting equipment and instruments from dust, pollution and other environmental influences. In the production of the existing dust cover, the glue is extruded into the cavity, and the wind power blown by the machine is used to blow the glue to the inner wall of the cavity, and the glue is cooled to form the dust cover.

[0003] The glue in the cavity exchanges heat with the inner wall of the cavity, so that the glue is cooled to form the dust cover shell. When the mold continuously produces the dust cover, the temperature of the inner wall of the cavity continuously rises, so that the heat exchange between the glue and the inner wall of the cavity continuously reduces the heat energy, prolongs the cycle of cooling and forming the glue, and increases the production cost of the dust cover. SUMMARY

[0004] In order to improve the problem of the cycle of cooling and forming the glue, the application provides a high-sealing dust cover blow molding device.

[0005] The application provides a high-sealing dust cover blow molding device, which adopts the following technical scheme:

[0006] A high-sealing dust cover blow molding device, comprising a base, a fixed mold block, a movable mold block and a cooling device, the fixed mold block is connected to the surface of the base, the movable mold block is slidingly connected to the surface of the base, when the movable mold block and the fixed mold block are closed, a cavity for blow molding is left between the movable mold block and the fixed mold block, the cooling device comprises a circulating water tank, a water inlet pipeline, a water outlet pipeline and a power assembly, the circulating water tank is connected to the surface of the base, a cooling water channel one is formed in the fixed mold block, a cooling water channel two is formed in the movable mold block, the cooling water channel one is communicated with the cooling water channel two, one end of the water inlet pipeline is connected to the surface of the circulating water tank, the other end of the water inlet pipeline is connected to the surface of the fixed mold block, one end of the water outlet pipeline is connected to the surface of the movable mold block, the other end of the water outlet pipeline is connected to the surface of the circulating water tank, and the power assembly is connected to the inner wall of the cooling water channel one. The power assembly can drive the water in the circulating water tank to pass through the water inlet pipeline, the cooling water channel one, the cooling water channel two, the water outlet pipeline and return to the inner cavity of the circulating water tank in sequence.

[0007] By adopting the above technical scheme, when the rubber material is blown and attached to the inner wall of the cavity by air pressure, the rubber material exchanges heat with the inner wall of the cavity, the rubber material is cooled and formed into a dust cover, the inner wall of the cavity is heated and increases in temperature, the inner wall of the cooling water channel one and the inner wall of the cooling water channel two exchange heat with water, the temperature of the cavity is lowered, the inner wall of the cavity is not easy to be in a high-temperature state for a long time, the period of cooling and forming the rubber material is shortened, and thus the production cost of the dust cover is reduced; meanwhile, the water in the circulating water tank is driven by the power assembly to pass through the water inlet pipeline, the cooling water channel one, the cooling water channel two, the water outlet pipeline and return to the inner cavity of the circulating water tank in sequence, the water resource is recycled, the waste of water resource is reduced, the concept of energy saving is embodied, and the stability of heat exchange between the inner wall of the cooling water channel one and the inner wall of the cooling water channel two and water is ensured.

[0008] Optionally, the power assembly comprises a one-way valve one, a one-way valve two, a reciprocating screw rod and a power piston, the inner wall of the cooling water channel one is provided with a power cavity for sliding of the power piston, the reciprocating screw rod is rotationally connected to the inner wall of the power cavity, the power piston is threadedly connected to the outer wall of the reciprocating screw rod, the power piston slides along the reciprocating screw rod axis in the inner wall of the power cavity, the one-way valve one is connected to the inner wall of the cooling water channel one, the one-way valve one allows water in the water inlet pipeline to enter the cooling water channel one, the one-way valve two is connected to the inner wall of the cooling water channel two, and the one-way valve two allows water in the cooling water channel two to enter the water outlet pipeline.

[0009] By adopting the above technical scheme, when the reciprocating screw rod rotates in the inner wall of the power cavity and drives the power piston to move along the reciprocating screw rod axis and approach the cooling water channel one, the water pressure in the cooling water channel one increases, the water in the cooling water channel one is driven to pass through the cooling water channel two and the one-way valve two and enter the inner cavity of the water outlet pipeline in sequence, and the water in the cooling water channel one and the cooling water channel two is discharged; when the reciprocating screw rod rotates in the inner wall of the power cavity and drives the power piston to move along the reciprocating screw rod axis and move away from the cooling water channel one, the water pressure in the power cavity decreases, the water in the circulating water tank is driven to pass through the water inlet pipeline and the one-way valve one and enter the cooling water channel one in sequence, the water resource in the cooling water channel one and the cooling water channel two is supplemented, the stability of water flow in the cooling water channel one and the cooling water channel two is ensured, and thus the heat dissipation efficiency of heat exchange between the inner wall of the cooling water channel one and the inner wall of the cooling water channel two and water is improved.

[0010] Optionally, the power assembly further comprises a power fan, a bevel gear one and a bevel gear two, the surface of the fixed mold block is provided with an exhaust flow channel, the exhaust flow channel communicates with the cavity, the power fan is rotationally connected to the inner wall of the exhaust flow channel, the power fan axis and the reciprocating screw rod axis are perpendicular to each other, the bevel gear one is coaxially connected to the rotation shaft of the power fan, the bevel gear two is coaxially connected to the rotation shaft of the reciprocating screw rod, and the bevel gear one engages the bevel gear two; when air in the cavity is exhausted through the exhaust flow channel and drives the power fan to rotate, the reciprocating screw rod is driven to rotate in the inner wall of the power cavity.

[0011] By adopting the above technical scheme, when the rubber material is injected into the cavity, the air in the cavity is driven to be discharged through the exhaust flow channel, and the air in the exhaust flow channel impacts the fan blades of the power fan, drives the power fan to rotate around its own axis, the bevel gear one meshes with the bevel gear two, and drives the reciprocating screw rod to rotate around its own axis, without the need of an external power device to drive the reciprocating screw rod to rotate, thereby reducing the energy loss, and embodying the concept of energy saving.

[0012] Optionally, the exhaust flow channel is connected with a waterproof breathable membrane towards the inner wall of the cavity, and the surface of the waterproof breathable membrane is flush with the inner wall of the cavity.

[0013] By adopting the above technical scheme, when the rubber material is injected into the cavity, the air in the cavity is driven to be discharged through the exhaust flow channel, and the air in the exhaust flow channel impacts the fan blades of the power fan, drives the power fan to rotate around its own axis, the bevel gear one meshes with the bevel gear two, and drives the reciprocating screw rod to rotate around its own axis, without the need of an external power device to drive the reciprocating screw rod to rotate, thereby reducing the energy loss, and embodying the concept of energy saving.

[0014] Optionally, the power assembly further comprises an elastic member, one end of the elastic member in the elastic force direction is connected to the inner wall of the exhaust flow channel, and the other end of the elastic member in the elastic force direction is connected to the rotating shaft of the power fan, when the pressure of the air in the exhaust flow channel against the fan blades of the power fan disappears, the elastic force of the elastic member drives the power fan to rotate reversely and reset.

[0015] By adopting the above technical scheme, when the air in the cavity is discharged through the exhaust flow channel, the impact force of the air in the exhaust flow channel against the fan blades of the power fan disappears, the elastic force of the elastic member drives the power fan to rotate reversely and reset, the bevel gear one meshes with the bevel gear two, drives the reciprocating screw rod to rotate on the inner wall of the power cavity, drives the power piston to rotate on the inner wall of the power cavity around the axis of the reciprocating screw rod, prolongs the time period of reciprocating sliding of the power piston on the inner wall of the power cavity, thereby prolongs the period of water flow in the cooling water channel one and the cooling water channel two, and improves the cooling efficiency of the inner wall of the cavity.

[0016] Optionally, the reciprocating screw rod is connected with a constant temperature assembly, the constant temperature assembly comprises a constant temperature motor and a contact switch, the reciprocating screw rod comprises a threaded part, a thermal expansion and contraction part and a connecting part, one end of the thermal expansion and contraction part is coaxially connected with the end of the threaded part, the other end of the thermal expansion and contraction part is coaxially connected with the end of the connecting part, the power piston is threadedly connected with the surface of the threaded part, the bevel gear two is coaxially connected with the connecting part, the bevel gear two is located on the side of the bevel gear one away from the thermal expansion and contraction part, the constant temperature motor is connected with the top surface of the fixed module, the motor axis of the constant temperature motor coincides with the axis of the reciprocating screw rod, the end surface of the connecting part towards the constant temperature motor is connected with an embedded block, the motor end surface of the constant temperature motor is provided with an embedded groove for embedding the embedded block, the contact switch is connected with the inner wall of the embedded groove, the contact switch is electrically connected with the constant temperature motor, when the thermal expansion and contraction part is heated and expanded, the connecting part is driven to slide towards the constant temperature motor, the embedded block is embedded in the embedded groove, the contact switch abuts against the embedded block and is turned on, the constant temperature motor is powered on and runs, and the meshing effect between the bevel gear one and the bevel gear two disappears.

[0017] By adopting the above technical scheme, when the temperature of the inner wall of the mold cavity is too high, the inner wall of the mold cavity exchanges heat with the thermal expansion and contraction part, the thermal expansion and contraction part is heated and expanded and drives the connecting part to slide towards the constant temperature motor, the embedded block is embedded in the embedded groove, the circumferential outer wall of the embedded block abuts against the inner wall of the embedded groove to limit, the contact switch abuts against the embedded block and is turned on, the constant temperature motor is powered on and runs, drives the reciprocating screw rod to rotate in the power cavity, and drives the bevel gear two to slide towards the constant temperature motor, so that the meshing effect between the bevel gear one and the bevel gear two disappears, the interference with the power fan is reduced, and the service life of the power fan is prolonged.

[0018] Optionally, the fixed module is connected with a cooling assembly, the cooling assembly comprises a positioning rod and a cooling fan, the positioning rod is connected with the top surface of the fixed module, the positioning rod is provided with a positioning hole for penetrating the water outlet pipeline, the cooling fan is rotationally connected with the top surface of the fixed module, and the air outlet end of the cooling fan faces the outer wall of the water outlet pipeline.

[0019] By adopting the above technical scheme, the water outlet pipeline penetrates the positioning hole, the outer wall of the water outlet pipeline is limited by abutting against the inner wall of the positioning hole, the air outlet end of the cooling fan faces the outer wall of the water outlet pipeline, the cooling fan drives the airflow to impact the outer wall of the water outlet pipeline, the water in the water outlet pipeline exchanges heat with the inner wall of the water outlet pipeline, the cooling of the water in the water outlet pipeline is realized, when the outer wall of the water outlet pipeline is heated, the outer wall of the water outlet pipeline exchanges heat with the air, the cooling of the water outlet pipeline is realized, the water flowing back to the circulating water tank is not easy to be in a high temperature state, and an external cooling device is not needed to cool the water in the circulating water tank.

[0020] Optionally, the cooling assembly further comprises two synchronous wheels and a synchronous belt used in cooperation with the synchronous wheels, one of the synchronous wheels is coaxially connected to the motor shaft of the constant temperature motor, the other synchronous wheel is coaxially connected to the rotating shaft of the cooling fan, and the synchronous belt is tensioned between the two synchronous wheels.

[0021] By using the above technical scheme, when the constant temperature motor operates, the synchronous belt tensioned between the two synchronous wheels drives the cooling fan to rotate around its own axis, without the need of an external power device to drive the cooling fan to rotate, thereby reducing the energy loss and embodying the concept of energy saving.

[0022] Optionally, the surface of the movable mold module facing the fixed mold module is connected with a sealing strip, the surface of the fixed mold module facing the movable mold module is provided with a sealing flow channel for embedding the sealing strip, the outer wall of the sealing strip can abut against the inner wall of the sealing flow channel to form a seal, and the sealing strip surrounds the cavity.

[0023] By using the above technical scheme, when the fixed mold module and the movable mold module are clamped, the sealing strip is embedded in the sealing flow channel, the outer wall of the sealing strip abuts against the inner wall of the sealing flow channel to form a seal, and the sealing strip surrounds the cavity, so that foreign matters are not easy to enter the cavity through the connection between the fixed mold module and the movable mold module, thereby ensuring the stability of the blow molding of the rubber material in the cavity.

[0024] Optionally, the sealing strip is embedded with a thermal expansion and contraction strip.

[0025] By using the above technical scheme, when the thermal expansion and contraction strip is heated and expanded, the thermal expansion and contraction strip extrudes the inner cavity wall of the sealing strip, drives the outer periphery of the sealing strip to deform and abut against the inner wall of the sealing flow channel to form a seal, and further improves the sealing stability between the fixed mold module and the movable mold module.

[0026] In summary, the present application has at least one of the following beneficial technical effects:

[0027] 1. The setting of the circulating water tank, the water outlet pipeline, the water inlet pipeline and the power assembly, the inner wall of the cooling water channel one and the inner wall of the cooling water channel two are in heat exchange with water, the cooling of the cavity is realized, the inner wall of the cavity is not easy to be in a high temperature state for a long time, the period of the cooling and molding of the rubber material is shortened, and the production cost of the dust cover is reduced;

[0028] 2. The setting of the one-way valve one, the one-way valve two, the reciprocating screw rod and the power piston realizes the supply of water resources in the cooling water channel one and the cooling water channel two, ensures the stability of the water flow in the cooling water channel one and the cooling water channel two, and improves the heat dissipation efficiency of the heat exchange between the inner wall of the cooling water channel one and the inner wall of the cooling water channel two and water;

[0029] 3. The setting of the power fan, the bevel gear one and the bevel gear two drives the reciprocating screw rod to rotate around its own axis, without the need of an external power device to drive the reciprocating screw rod to rotate, thereby reducing the energy loss and embodying the concept of energy saving. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 is a schematic diagram of the overall structure in the embodiment of the present application.

[0031] Figure 2 is a sectional view in the embodiment of the present application, mainly showing the cooling device.

[0032] Figure 3 is a partial sectional view in the embodiment of the present application, mainly showing the power assembly.

[0033] Figure 4 is Figure 3 is an enlarged view of A in FIG. 1.

[0034] Legend: 1, base; 2, fixed mold block; 21, cavity; 22, cooling water channel one; 23, exhaust flow channel; 24, sealing flow channel; 25, positioning cavity; 26, power cavity; 3, movable mold block; 31, cooling water channel two; 4, cooling device; 41, circulating water tank; 42, water inlet pipeline; 43, water outlet pipeline; 44, power assembly; 441, one-way valve one; 442, one-way valve two; 443, reciprocating screw rod; 4431, threaded portion; 4432, thermal expansion and contraction portion; 4433, connecting portion; 444, power piston; 445, power fan; 446, bevel gear one; 447, bevel gear two; 448, elastic member; 5, air cylinder one; 6, water-separation air-permeable membrane; 7, constant-temperature assembly; 71, constant-temperature motor; 711, embedding groove; 72, contact switch; 8, embedding block; 9, cooling assembly; 91, positioning rod; 911, positioning hole; 92, cooling fan; 93, synchronous wheel; 94, synchronous belt; 10, sealing strip; 11, thermal expansion and contraction strip; 12, feeding assembly; 121, air pump; 122, support seat; 123, feeding air cylinder; 124, barrel. DETAILED DESCRIPTION

[0035] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application will be further described in detail.

[0036] The embodiment of the present application discloses a high-sealing dustproof cover blow molding device. Referring to Figure 1 and Figure 2The utility model provides a high sealing dust cover blow molding device, which comprises a base 1, a fixed mold 2, a movable mold 3 and a cooling device 4. The bottom surface of the base 1 abuts against the ground to form a support. The fixed mold 2 is fixed on the top surface of the base 1 by welding. The movable mold 3 is slidably connected to the top surface of the base 1. The sliding direction of the movable mold 3 is parallel to the length direction of the base 1. A cylinder 1 5 is fixed on the surface of the base 1 by bolts. The sliding direction of the cylinder 1 5 is parallel to the length direction of the base 1. The piston rod end of the cylinder 1 5 is fixed on the surface of the movable mold 3 away from the fixed mold 2 by welding. When the cylinder 1 5 drives the movable mold 3 to move close to the fixed mold 2, the movable mold 3 and the fixed mold 2 are closed, and a cavity 21 for blow molding is left between the movable mold 3 and the fixed mold 2. The cooling device 4 is installed on the base 1. The cooling device 4 can cool the inner wall of the cavity 21, shorten the period of cooling and molding of the rubber material in the cavity 21, and thus reduce the production cost of the dust cover.

[0037] With reference to Figure 2 and Figure 3 The cooling device 4 comprises a circulating water tank 41, a water inlet pipeline 42, a water outlet pipeline 43 and a power assembly 44. The circulating water tank 41 is fixed on the surface of the base 1 by bolts. The surface of the fixed mold 2 facing the circulating water tank 41 is provided with a cooling water channel 1 2 2. The surface of the movable mold 3 facing the fixed mold 2 is provided with a cooling water channel 2 31. The cooling water channel 2 31 penetrates through the outer wall of the movable mold 3 away from the fixed mold 2. The cooling water channel 1 2 2 is communicated with the cooling water channel 2 31. The inner cavity of the circulating water tank 41 is used for storing water. One end of the water inlet pipeline 42 is fixed on the outer wall of the circulating water tank 41 by a flange. The other end of the water inlet pipeline 42 is fixed on the surface of the fixed mold 2 by a flange. The inner cavity of the water inlet pipeline 42 is communicated with the inner cavity of the circulating water tank 41 and the cooling water channel 1 2 2. In the embodiment of the utility model, the water outlet pipeline 43 is a hose. One end of the water outlet pipeline 43 is fixed on the surface of the circulating water tank 41 by a flange. The other end of the water outlet pipeline 43 is fixed on the surface of the movable mold 3 by a flange. The inner cavity of the water outlet pipeline 43 is communicated with the inner cavity of the circulating water tank 41 and the cooling water channel 2 31.

[0038] With reference to Figure 2 and Figure 3 The power assembly 44 is installed on the inner wall of the cooling water channel 1 2 2. The power assembly 44 can drive the water in the circulating water tank 41 to pass through the water inlet pipeline 42, the cooling water channel 1 2 2, the cooling water channel 2 31 and the water outlet pipeline 43 in sequence and return to the inner cavity of the circulating water tank 41. The inner wall of the cooling water channel 1 2 2 and the inside of the cooling water channel 2 31 exchange heat with the water, thereby cooling the fixed mold 2 and the movable mold 3. The inner wall of the cavity 21 is not easy to be in a high-temperature state for a long time, the stability of heat exchange between the inner wall of the cavity 21 and the rubber material is ensured, the period of cooling and molding of the rubber material is shortened, and thus the production cost of the dust cover is reduced.

[0039] With reference to Figure 2 and Figure 4, the power assembly 44 comprises a one-way valve one 441, a one-way valve two 442, a reciprocating wire rod 443, a power piston 444, a power fan 445, a bevel gear one 446, a bevel gear two 447 and an elastic member 448, the one-way valve one 441 is installed on the inner wall of the cooling water channel one 22 close to the water inlet pipe 42, the one-way valve one 441 is used for water in the water inlet pipe 42 to enter the cooling water channel one 22, the one-way valve two 442 is installed on the inner wall of the cooling water channel two 31 close to the water outlet pipe 43, the one-way valve two 442 is used for water in the cooling water channel two 31 to enter the inner cavity of the water outlet pipe 43, and the one-way flow of water resources in the cooling water channel one 22 and the cooling water channel two 31 is realized.

[0040] With reference to Figure 2 , the number of the reciprocating wire rod 443 can be one or two, in the embodiment of the application, the number of the reciprocating wire rod 443 is two, the inner wall of the cooling water channel one 22 and the inner wall of the cooling water channel two 31 are both provided with a power cavity 26 for rotation of the reciprocating wire rod 443, the axis of the reciprocating wire rod 443 is parallel to the height direction of the fixed mold module 2, the number of the power piston 444 can be one or two, in the embodiment of the application, the number of the power piston 444 is two, the material of the power piston 444 can be rubber or silica gel, in the embodiment of the application, the material of the power piston 444 is rubber, and the power piston 444 has a certain deformation capacity, the power piston 444 is in one-to-one correspondence with the reciprocating wire rod 443, the power piston 444 is screw-connected to the outer wall of the reciprocating wire rod 443, and the power piston 444 slides along the axis of the reciprocating wire rod 443 in the inner wall of the power cavity 26; when the power piston 444 slides along the inner wall of the power cavity 26 towards the cooling water channel one 22, the water pressure in the cooling water channel one 22 increases, so that water in the cooling water channel one 22 sequentially passes through the cooling water channel two 31, the one-way valve two 442 and enters the water outlet pipe 43; when the power piston 444 slides along the inner wall of the power cavity 26 away from the cooling water channel one 22, the water pressure in the cooling water channel one 22 decreases, so that water in the circulating water tank 41 sequentially passes through the water inlet pipe 42, the one-way valve one 441 and enters the cooling water channel one 22, and the one-way flow of water resources in the cooling water channel one 22 and the cooling water channel two 31 is realized.

[0041] With reference to Figure 3 , the top surface of the fixed mold module 2 and the top surface of the movable mold module 3 are both provided with a gas discharge channel 23, the gas discharge channel 23 is in communication with the cavity 21 in the depth direction, the inner wall of the gas discharge channel close to the cavity 21 is fixedly provided with a waterproof breathable membrane 6, the material of the waterproof breathable membrane 6 can be polytetrafluoroethylene or coated fabric, in the embodiment of the application, the material of the waterproof breathable membrane 6 is polytetrafluoroethylene, and the waterproof breathable membrane 6 has good water tightness; the surface of the waterproof breathable membrane 6 is flush with the inner wall of the cavity 21, so that the glue in the cavity 21 is not easy to enter the gas discharge channel 23 through the waterproof breathable membrane 6, the cleanliness of the surface of the dust cover is ensured, and therefore the production quality of the dust cover is improved.

[0042] With reference toFigure 3 and Figure 4 The number of the power fan 445 can be one or two. In the embodiment of the application, the number of the power fan 445 is two. The power fan 445 is in one-to-one correspondence with the exhaust flow channel 23 and is rotationally connected to the inner wall of the exhaust flow channel 23. The axis of the power fan 445 and the length direction of the base 1 are parallel to each other. The number of the bevel gear one 446 and the bevel gear two 447 can both be one or two. In the embodiment of the application, the number of the bevel gear one 446 and the bevel gear two 447 is both two. The bevel gear one 446 is in one-to-one correspondence with the power fan 445 and is coaxially fixed on the rotating shaft of the power fan 445. The bevel gear two 447 is in one-to-one correspondence with the reciprocating lead screw 443 and is coaxially fixed on the end of the reciprocating lead screw 443. The bevel gear one 446 meshes with the bevel gear two 447.

[0043] Referring to Figure 2 and Figure 4 The number of the elastic member 448 can be one or two. In the embodiment of the application, the number of the elastic member 448 is two. The elastic member 448 is in one-to-one correspondence with the power fan 445. The elastic member 448 can be a compression spring or a disc spring. In the embodiment of the application, the elastic member 448 is a disc spring and has a certain deformation capacity. One end of the elastic member 448 in the elastic force direction is fixed on the inner wall of the exhaust flow channel 23. The other end of the elastic member 448 in the elastic force direction is fixed on the rotating shaft of the power fan 445. When the rubber material is injected into the cavity 21, the air in the cavity 21 is driven to be discharged from the exhaust flow channel 23. The airflow in the exhaust flow channel 23 impacts the fan blades of the power fan 445, drives the power fan 445 to rotate around its own axis, meshes the bevel gear one 446 with the bevel gear two 447, drives the reciprocating lead screw 443 to rotate in the inner wall of the power cavity 26, and drives the power piston 444 to slide back and forth along the axis of the reciprocating lead screw 443 in the inner wall of the power cavity 26. When the air in the cavity 21 is exhausted, the power of the airflow to the power fan 445 disappears. The elastic force of the elastic member 448 drives the power fan 445 to rotate reversely. The bevel gear one 446 meshes with the bevel gear two 447, drives the reciprocating lead screw 443 to continue to rotate in the power cavity 26, and prolongs the time length of the power piston 444 to slide back and forth in the power cavity 26, thereby improving the stability of the water flow in the cooling water channel one 22 and the cooling water channel two 31.

[0044] Referring to Figure 3 and Figure 4The constant temperature assembly 7 is mounted on the reciprocating screw rod 443, the constant temperature assembly 7 can control the rotation of the reciprocating screw rod 443, the constant temperature assembly 7 includes a constant temperature motor 71 and a contact switch 72, the reciprocating screw rod 443 includes a threaded part 4431, a thermal expansion and contraction part 4432 and a connecting part 4433, the material of the thermal expansion and contraction part 4432 can be nylon or rubber, the material of the thermal expansion and contraction part 4432 is nylon in the embodiment of the application, the thermal expansion and contraction part 4432 has a good thermal expansion coefficient, one end of the thermal expansion and contraction part 4432 is coaxially fixed on the end face of the threaded part 4431, the other end of the thermal expansion and contraction part 4432 is coaxially fixed on the end face of the connecting part 4433, the power piston 444 is threadedly connected on the outer periphery of the threaded part 4431, the bevel gear two 447 is coaxially fixed on the connecting part 4433, and the bevel gear two 447 is located on the side of the bevel gear one 446 away from the thermal expansion and contraction part 4432.

[0045] With reference to Figure 3 and Figure 4 The constant temperature motor 71 is fixed on the top surface of the fixed module 2 through bolts, the motor axis of the constant temperature motor 71 coincides with the axis of the reciprocating screw rod 443, the end of the motor axis of the constant temperature motor 71 penetrates the surface of the fixed module 2 and faces the connecting part 4433, the surface of the connecting part 4433 facing the constant temperature motor 71 is coaxially fixed with an embedded block 8, the end face of the motor axis of the constant temperature motor 71 is provided with an embedded groove 711 for embedding the embedded block 8, the contact switch 72 is mounted on the inner wall of the embedded groove 711, and the contact switch 72 is electrically connected with the constant temperature motor 71; when the thermal expansion and contraction part 4432 is heated and expanded, the connecting part 4433 is driven to slide towards the constant temperature motor 71, the embedded block 8 is embedded in the embedded groove 711, the circumferential outer wall of the embedded block 8 abuts against the inner wall of the embedded groove 711 to form a limit, the contact switch 72 abuts against the embedded block 8 and is turned on, the constant temperature motor 71 is powered and operates, drives the reciprocating screw rod 443 to rotate in the inner wall of the power cavity 26, and at the same time, the connecting part 4433 drives the bevel gear two 447 to slide away from the bevel gear one 446, so that the meshing between the bevel gear one 446 and the bevel gear two 447 disappears, and the directional meshing between the bevel gear one 446 and the bevel gear two 447 is realized.

[0046] With reference to Figure 2 and Figure 3The fixed mold 2 is provided with a cooling assembly 9 which can cool the water in the water outlet pipeline 43. The cooling assembly 9 comprises a positioning rod 91, a cooling fan 92, two synchronous wheels 93 and a synchronous belt 94 matched with the synchronous wheels 93. The positioning rod 91 is welded and fixed at the top surface of the fixed mold 2. The positioning rod 91 is provided with a positioning hole 911 for the water outlet pipeline 43. The cooling fan 92 is rotatably connected to the top surface of the fixed mold 2. The air outlet end of the cooling fan 92 faces the outer wall of the water outlet pipeline 43. The axis of the cooling fan 92 is parallel to the axis of the thermostat motor 71. One of the synchronous wheels 93 is coaxially fixed on the rotating shaft of the cooling fan 92. The other synchronous wheel 93 is coaxially fixed on the motor shaft of the thermostat motor 71. The synchronous belt 94 is tightly connected to the two synchronous wheels 93.

[0047] With reference to Figure 2 and Figure 3 When the thermostat motor 71 operates, the synchronous belt 94 tightly connects the two synchronous wheels 93, drives the cooling fan 92 to rotate on the top surface of the fixed mold 2, and drives the airflow to impact the outer wall of the water outlet pipeline 43. The water in the water outlet pipeline 43 exchanges heat with the inner wall of the water outlet pipeline 43, so as to cool the water in the water outlet pipeline 43. At the same time, the outer wall of the water outlet pipeline 43 fully contacts with the air and exchanges heat, so as to cool the outer wall of the water outlet pipeline 43. The water flowing back into the circulating water tank 41 is not easy to be in a high temperature state. The cooling device 4 is not needed to cool the water in the circulating water tank 41, so as to reduce the energy loss, thereby embodying the concept of energy saving.

[0048] With reference to Figure 3 The surface of the movable mold 3 facing the fixed mold 2 is fixed with a sealing strip 10. The material of the sealing strip 10 can be rubber or silica gel. In the embodiment of the application, the material of the sealing strip 10 is rubber, which has a certain deformation ability. The sealing strip 10 surrounds the cavity 21. The surface of the fixed mold 2 facing the movable mold 3 is provided with a sealing flow channel 24 for embedding the sealing strip 10. The outer periphery of the sealing strip 10 can tightly abut against the inner wall of the sealing flow channel 24 to form a seal, so that foreign matters are not easy to enter the cavity 21 through the abutting portion of the fixed mold 2 and the movable mold 3, thereby ensuring the stability of the cooling molding of the rubber material in the cavity 21.

[0049] With reference to Figure 3 The sealing strip 10 is embedded with a thermal expansion and contraction strip 11. The material of the thermal expansion and contraction strip 11 can be nylon or copper. In the embodiment of the application, the material of the thermal expansion and contraction strip 11 is nylon, which has a certain thermal expansion coefficient. When the thermal expansion and contraction strip 11 is heated and expanded, the thermal expansion and contraction strip 11 extrudes the inner cavity of the sealing strip 10, drives the sealing strip 10 to deform and tightly abut against the inner wall of the sealing flow channel 24 to form a seal, thereby further improving the sealing stability between the fixed mold 2 and the movable mold 3.

[0050] With reference to Figure 1 and Figure 3The base 1 is provided with an upper feeding assembly 12, which can inject glue into the cavity 21 for blow molding; the upper feeding assembly 12 comprises an inflator 121, a support seat 122, an upper feeding cylinder 123 and a material cylinder 124, the support seat 122 is welded and fixed at the top surface of the base 1, the upper feeding cylinder 123 is fixed on the top surface of the support seat 122 by bolts, the piston rod end of the upper feeding cylinder 123 penetrates through the surface of the support seat 122 and faces the cavity 21, the material cylinder 124 is welded and fixed on the piston rod of the upper feeding cylinder 123, the inner cavity of the material cylinder 124 is used for storing glue, the surface of the fixed mold block 2 and the movable mold block 3 abutting each other is provided with a positioning cavity 25 for embedding the discharge end of the material cylinder 124, the positioning cavity 25 is communicated with the cavity 21, the upper feeding cylinder 123 can drive the material cylinder 124 to slide towards the positioning cavity 25, the discharge end of the material cylinder 124 is embedded in the positioning cavity 25, the glue in the material cylinder 124 enters the cavity 21 through the discharge end, the inflator 121 is fixed on the top surface of the base 1 by bolts, the discharge end of the material cylinder 124 is fixed on the discharge end of the material cylinder 124, the inflator 121 can blow the glue discharged from the glue discharge end of the material cylinder 124, so that the glue is blown and covers on the inner wall of the cavity 21, the glue exchanges heat with the inner wall of the cavity 21, and the glue is cooled to form a dust cover.

[0051] The implementation principle of the high-sealing dust cover blow molding device is as follows: the upper feeding cylinder 123 drives the material cylinder 124 to slide towards the positioning cavity 25, the discharge end of the material cylinder 124 is embedded in the positioning cavity 25, the glue in the material cylinder 124 enters the cavity 21 through the discharge end, the inflator 121 blows the glue discharged from the glue discharge end of the material cylinder 124, so that the glue is blown and covers on the inner wall of the cavity 21, the glue exchanges heat with the inner wall of the cavity 21, and the glue is cooled to form a dust cover; meanwhile, the reciprocating screw rod 443 rotates in the inner wall of the power cavity 26, when the power piston 444 is driven to move along the axis of the reciprocating screw rod 443 and approach the cooling water channel one 22, the water pressure in the cooling water channel one 22 increases, so that the water in the cooling water channel one 22 sequentially passes through the cooling water channel two 31 and the one-way valve two 442 and enters the inner cavity of the water outlet pipeline 43, so as to realize the discharge of the water in the cooling water channel one 22 and the cooling water channel two 31; when the reciprocating screw rod 443 rotates in the inner wall of the power cavity 26 and drives the power piston 444 to move along the axis of the reciprocating screw rod 443 and away from the cooling water channel one 22, the water pressure in the power cavity 26 decreases, so that the water in the circulating water tank 41 sequentially passes through the water inlet pipeline 42, the one-way valve one 441 and enters the cooling water channel one 22, so as to realize the supply of water resources in the cooling water channel one 22 and the cooling water channel two 31, and ensure the stability of the water flow in the cooling water channel one 22 and the cooling water channel two 31, thereby improving the heat exchange efficiency of the inner walls of the cooling water channel one 22 and the cooling water channel two 31 with water, realizing the cooling of the cavity 21, preventing the inner wall of the cavity 21 from being in a high-temperature state for a long time, shortening the period of cooling and molding of the glue, and thereby reducing the production cost of the dust cover.

[0052] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A high-sealing dustproof cover blow molding device, characterized in that: The system includes a base (1), a fixed module (2), a moving module (3), and a cooling device (4). The fixed module (2) is connected to the surface of the base (1), and the moving module (3) is slidably connected to the surface of the base (1). When the moving module (3) and the fixed module (2) are closed, a cavity (21) for blow molding is left between the moving module (3) and the fixed module (2). The cooling device (4) includes a circulating water tank (41), an inlet pipe (42), an outlet pipe (43), and a power assembly (44). The circulating water tank (41) is connected to the surface of the base (1). The stationary module (2) has a cooling water channel 1 (22) and the moving module (3) has a cooling water channel 2 (31). The cooling water channel 1 (22) is connected to the cooling water channel 2 (31). One end of the water inlet pipe (42) is connected to the surface of the circulating water tank (41), and the other end of the water inlet pipe (42) is connected to the surface of the stationary module (2). One end of the water outlet pipe (43) is connected to the surface of the moving module (3), and the other end of the water outlet pipe (43) is connected to the surface of the circulating water tank (41). The power assembly (44) is connected to the inner wall of the cooling water channel 1 (22). The power assembly (44) can drive the water in the circulating water tank (41) to pass sequentially through the inlet pipe (42), cooling water channel one (22), cooling water channel two (31), and outlet pipe (43) and return to the inner cavity of the circulating water tank (41); the power assembly (44) includes a one-way valve one (441), a one-way valve two (442), a reciprocating screw (443), and a power piston (444). The inner wall of the cooling water channel one (22) is provided with a power cavity (26) for the power piston (444) to slide. The reciprocating screw (443) is rotatably connected to the power cavity (26). On the inner wall, the power piston (444) is threaded to the outer wall of the reciprocating screw (443). The power piston (444) slides along the axis of the reciprocating screw (443) on the inner wall of the power chamber (26). The first check valve (441) is connected to the inner wall of the first cooling water channel (22). The first check valve (441) supplies water from the inlet pipe (42) into the first cooling water channel (22). The second check valve (442) is connected to the inner wall of the second cooling water channel (31). The second check valve (442) supplies water from the second cooling water channel (31) into the outlet pipe (43).The power assembly (44) also includes a power fan (445), a first bevel gear (446), and a second bevel gear (447). An exhaust channel (23) is provided on the surface of the fixed module (2), which connects to the cavity (21). The power fan (445) is rotatably connected to the inner wall of the exhaust channel (23). The axis of the power fan (445) is perpendicular to the axis of the reciprocating screw (443). The first bevel gear (446) is coaxially connected to the rotating shaft of the power fan (445), and the second bevel gear (447) is coaxially connected to the rotating shaft of the reciprocating screw (443). The first bevel gear (446) meshes with the second bevel gear (447). When air in the cavity (21) is discharged through the exhaust channel (23)... When the power fan (445) rotates, it drives the reciprocating screw (443) to rotate on the inner wall of the power chamber (26); the power assembly (44) also includes an elastic element (448), one end of the elastic element (448) in the elastic direction is connected to the inner wall of the exhaust channel (23), and the other end of the elastic element (448) in the elastic direction is connected to the rotating shaft of the power fan (445). When the pressure of the air in the exhaust channel (23) on the blades of the power fan (445) disappears, the elastic element (448) drives the power fan (445) to rotate in the opposite direction to reset; a constant temperature assembly (7) is connected to the reciprocating screw (443), the constant temperature assembly (7) includes a constant temperature motor (71) and a contact switch (72), the reciprocating screw The rod (443) includes a threaded part (4431), a thermal expansion and contraction part (4432), and a connecting part (4433). One end of the thermal expansion and contraction part (4432) is coaxially connected to the end of the threaded part (4431), and the other end of the thermal expansion and contraction part (4432) is coaxially connected to the end of the connecting part (4433). The power piston (444) is threadedly connected to the surface of the threaded part (4431). The second bevel gear (447) is coaxially connected to the connecting part (4433). The second bevel gear (447) is located on the side of the first bevel gear (446) away from the thermal expansion and contraction part (4432). The thermostatic motor (71) is connected to the top surface of the fixed module (2). The motor axis of the thermostatic motor (71) coincides with the axis of the reciprocating screw (443). The connecting part (4433) is connected to the end face of the thermostatic motor (71) with an insert (8). The end face of the motor shaft of the thermostatic motor (71) has a groove (711) for the insert (8) to be inserted. The contact switch (72) is connected to the inner wall of the groove (711) and is electrically connected to the thermostatic motor (71). When the thermal expansion and contraction part (4432) heats up and expands, it drives the connecting part (4433) to slide closer to the thermostatic motor (71). The insert (8) is inserted into the groove (711), and the contact switch (72) abuts against the insert (8) and conducts electricity. The thermostatic motor (71) is powered on and runs, and the meshing effect between the first bevel gear (446) and the second bevel gear (447) disappears.

2. The high-sealing dustproof cover blow molding device according to claim 1, characterized in that: The exhaust channel (23) is connected to the inner wall of the cavity (21) with a water-proof and breathable membrane (6), and the surface of the water-proof and breathable membrane (6) is flush with the inner wall of the cavity (21).

3. The high-sealing dustproof cover blow molding device according to claim 1, characterized in that: A cooling component (9) is connected to the fixed module (2). The cooling component (9) includes a positioning rod (91) and a cooling fan (92). The positioning rod (91) is connected to the top surface of the fixed module (2). A positioning hole (911) is provided on the positioning rod (91) for the water supply pipe (43) to pass through. The cooling fan (92) is rotatably connected to the top surface of the fixed module (2). The air outlet of the cooling fan (92) faces the outer wall of the water supply pipe (43).

4. The high-sealing dustproof cover blow molding device according to claim 3, characterized in that: The cooling assembly (9) also includes two synchronous pulleys (93) and a synchronous belt (94) used in conjunction with the synchronous pulleys (93). One of the synchronous pulleys (93) is coaxially connected to the motor shaft of the thermostatic motor (71), and the other synchronous pulley (93) is coaxially connected to the rotating shaft of the cooling fan (92). The synchronous belt (94) tensions the two synchronous pulleys (93).

5. The high-sealing dustproof cover blow molding device according to claim 1, characterized in that: The moving module (3) is connected to a sealing strip (10) on the surface facing the fixed module (2). The fixed module (2) is provided with a sealing channel (24) for the sealing strip (10) to be embedded on the surface facing the moving module (3). The outer wall of the sealing strip (10) can press against the inner wall of the sealing channel (24) to form a seal, and the sealing strip (10) surrounds the cavity (21).

6. The high-sealing dustproof cover blow molding device according to claim 5, characterized in that: The sealing strip (10) is embedded with a thermal expansion and contraction strip (11).

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