CN117885293A - Production equipment of electric kettle - Google Patents

Abstract

The invention relates to the technical field of production of health-preserving kettles and discloses production equipment of an electric kettle, which comprises a lower die and an upper die, wherein a die cavity is formed in the lower die, a die holder is fixedly arranged on the lower surface of the upper die, a plurality of rib plate cavities are formed on the side surface of the die holder, the die holder is matched with the die cavity, a material injection pipe is fixedly arranged on the upper surface of the upper die, the production equipment of the electric kettle can inject injection materials into the plurality of rib plate cavities through the combined design of the material injection pipe, a branch pipe, a conduit, a material injection channel, a back pressure pipe, a piston block and a resistance block, and when the material injection pressure in one or more material injection channels reaches a set threshold value, the conveying direction of the injection materials is automatically adjusted, so that the mobility of the injection materials in the cavity between the die cavity and the die holder is improved, the filling of the injection materials into the cavity is ensured, and meanwhile, the injection pressure of the injection materials is favorably reduced, and the effect of the injection materials during injection molding of the health-preserving base is good.

Description

Production equipment of electric kettle

Technical Field

The invention relates to the technical field of health-preserving kettle production, in particular to production equipment of an electric kettle.

Background

The health-care kettle is one of electric heating kettles, and the health-care kettle is usually formed by a transparent glass kettle body and a plastic base, and a supporting rib plate is usually arranged on the inner wall of the plastic base of the health-care kettle and used for improving the supporting strength of the plastic base to the kettle body, and most of the plastic base of the health-care kettle is produced by adopting injection molding equipment for integral injection molding.

Injection molding equipment of traditional health preserving kettle plastic base all adopts a material injection port to push injection molding material into injection molding's cavity, because the design of floor in the plastic base can increase the flow resistance of injection molding material in the cavity, and the required notes material pressure of notes material is great, needs dedicated drawing of patterns system to just can carry out the drawing of patterns to plastic base simultaneously after the plastic base injection molding, can appear the phenomenon of injection molding material weeping in the cavity after the drawing of patterns, can influence the injection molding processing of plastic base next time.

Disclosure of Invention

In order to solve the problems that injection molding materials of injection molding equipment of the traditional plastic base of the health-care kettle are not easy to fill the cavity fully, the injection pressure required by injection is high, and the plastic base can be subjected to demolding treatment only by a special demolding system after injection molding of the plastic base, and the phenomenon of leakage of the injection molding materials can occur in the cavity after demolding, the invention is realized by the following technical scheme: the utility model provides a production facility of electric kettle, through the base that adopts injection moulding processing's mode production health preserving kettle, the inside design of health preserving kettle has a plurality of floor for improve the support strength of base, including lower mould and last mould, the die cavity has been seted up to the inside of lower mould, the die cavity suits with the base of health preserving kettle, the lower surface fixed mounting of last mould has the die holder, the side surface of die holder has seted up a plurality of floor cavity, the floor cavity is the same with the inside floor structure of base of health preserving kettle, the die holder with the die cavity looks adaptation, after die holder and die cavity combination, the spatial structure between them is the same with the base structure of health preserving kettle, the upper surface fixed mounting of last mould has the injection pipe, the side surface of injection pipe lower extreme is provided with a plurality of branch pipe;

The die holder is internally provided with a plurality of injection channels, the plurality of injection channels are respectively communicated with the plurality of rib plate cavities, the injection channels are communicated with the branch pipes through guide pipes, and the injection pipes inject molten injection materials into the cavity between the die cavity and the die holder through the branch pipes, the guide pipes and the injection channels;

And a first blocking block is arranged at the joint of the guide pipe and the branch pipe, and is used for preventing injection molding materials in the branch pipe from entering the guide pipe when the injection pressure in the injection channel reaches a set threshold value.

When the injection pressure in one or more injection channels reaches a set threshold value, the corresponding injection channels are in charge of filling injection materials in the cavity spaces of the injection channels, at the moment, the injection materials in the branch pipes are prevented from entering the corresponding guide pipes by the aid of the first blocking blocks, at the moment, the injection materials are easier to enter the guide pipes corresponding to the cavity spaces which are not filled with the injection materials under the action of the injection pipes, and therefore the injection materials can be conveniently and quickly and uniformly filled into the cavities between the die cavity and the die holder.

Furthermore, the joint of the guide pipe and the branch pipe adopts a T-shaped pipe design, the first blocking block is slidably arranged in the inner part of one end of the guide pipe far away from the material injection channel, and a compressed reset spring is arranged between the first blocking block and the inner wall of the guide pipe;

The lower surface of the guide pipe is provided with a U-shaped back pressure pipe, two ends of the back pressure pipe are positioned at two sides of the joint of the guide pipe and the branch pipe, and two ends of the back pressure pipe are respectively communicated with the pipelines inside the guide pipes at two sides of the block;

the first blocking block is in sealing sliding connection with the guide pipe, and a piston block is arranged in sealing sliding connection with the inner part of one end of the back pressure pipe, which is far away from one side of the return spring, of the first blocking block.

When the injection pressure in the injection channel reaches a set threshold value, the injection material in the guide pipe has the same pressure on the surfaces of the piston block and the blocking block, and meanwhile, the piston block compresses air between the piston block and the blocking block I to generate pushing force on the surface of the blocking block I, which is close to one side of the compressed reset spring, and the pushing force is overlapped with the force of the compressed reset spring on the blocking block I, so that the blocking block is promoted to move to the position of the connecting part of the guide pipe and the branch pipe, the size of a passage opening of the connecting part of the guide pipe and the branch pipe is reduced, and the injection material in the branch pipe is prevented from continuously entering the guide pipe.

Furthermore, the joint of the guide pipe and the material injection channel adopts a T-shaped pipe design, a flow blocking rod is arranged in the material injection channel in a vertically sliding manner, a rod body of the flow blocking rod is matched with the material injection channel, a telescopic cylinder is fixedly arranged on the upper surface of the upper die, the telescopic cylinder is a hydraulic cylinder, and the flow blocking rod is controlled to vertically slide by the telescopic cylinder;

When the guide pipe is used for injecting materials into the material injection channel, the lower end of the flow blocking rod is positioned above the joint of the guide pipe and the material injection channel.

When the injection pressure in the injection channel reaches a set threshold value, the telescopic cylinder is used for driving the flow blocking rod to move downwards, the flow blocking rod pushes injection molding materials in the injection channel into the cavity, and meanwhile, the flow blocking rod is used for preventing injection molding materials in the guide pipe from entering the injection channel, so that the phenomenon of material leakage in the injection channel when the die cavity is separated from the die holder is avoided.

Further, a plurality of sealing cavities are arranged in the upper die, the plurality of sealing cavities correspond to the plurality of material injection channels respectively, and the choke rod axially penetrates through the sealing cavities;

The surface of the choke rod is provided with a first piston plate, and the first piston plate is installed in the sealing cavity in a sealing sliding manner;

the inside of die holder is provided with the inner chamber, the inner chamber is the U-shaped chamber, the opening of inner chamber is located the surface of die holder, the sealed slidable mounting in inside of inner chamber has the drawing of patterns piece be located the terminal surface of inner chamber opening one side with the surface looks adaptation of die holder, the inner chamber with through air current passageway one intercommunication between the space of the inside piston plate one of sealed chamber.

When the choke rod moves downwards, the piston plate I is driven to move together, the pressure of the space above the piston plate I is reduced, the pressure of the space below the piston plate I is increased, accordingly, negative pressure is generated in the inner cavity, the demoulding block is driven to move towards the inner direction of the inner cavity, negative pressure generated in the space, close to the opening of the inner cavity, of the demoulding block can generate adsorption force on the base of the health-preserving kettle formed in the cavity between the mould cavity and the mould base, and when the mould cavity is separated from the mould base, the base of the health-preserving kettle is separated from the mould cavity by the negative pressure.

Further, a reset spring is arranged between the demoulding module and the inner wall of the inner cavity, a second piston plate is arranged in the inner cavity in a sealing sliding manner, friction acting force exists between the second piston plate and the inner cavity, a gap is arranged between the second piston plate and the demoulding block, a second stop block is fixedly arranged on the inner wall of the inner cavity, which is close to one side of the gap, of the second piston plate, and the second stop block is used for limiting the travel of the second piston plate in the direction of the demoulding module;

The friction resistance existing between the piston plate II and the inner cavity, and the gap existing between the piston plate II and the demoulding block are utilized to slow down the time of the demoulding block moving towards the inner cavity by utilizing the friction resistance received by the piston plate II and the compressibility of the space in the gap when negative pressure is generated in the sealing cavity above the piston plate I, so that after the injection molding material in the material injection channel is pushed into the cavity between the mold cavity and the mold base by the flow blocking rod, the demoulding block can only move towards the inner cavity after the injection molding material in the cavity is fixed and molded, and at the moment, the inner cavity can only generate adsorption acting force on the base of the molded health preserving kettle.

An air cavity is arranged in the die holder, and the air cavity is communicated with a space below the piston plate in the sealing cavity through a second air flow channel;

A connecting pipe is arranged between the air cavity and the inner cavity, and one end of the connecting pipe, which is far away from the air cavity, is communicated with a gap between the piston plate II and the demoulding block;

And a blocking block is arranged in the connecting pipe, and when the air pressure in the air cavity reaches a set threshold value, a channel in the connecting pipe is opened.

After the die cavity is separated from the die holder, the base of the molded health-preserving kettle is adsorbed on the surface of the die holder, at the moment, the air pressure in the air cavity reaches a set threshold value, the air pressure pushes away the blocking block, air in the air cavity instantaneously enters a gap between the piston plate II and the demolding block through the connecting pipe, and the demolding module instantaneously moves towards the opening end direction of the inner cavity under the action of the air pressure in the gap and impacts the surface of the base of the molded health-preserving kettle, so that the base is separated from the die holder, and the demolding effect is realized.

Further, the blocking piece is rotatably installed in the connecting pipe near one end of the inner cavity, a supporting rod is arranged in the connecting pipe, rollers capable of rotating unidirectionally are arranged at two ends of the supporting rod, a connecting rod is rotatably installed on the surface of the supporting rod, and one end, away from the supporting rod, of the connecting rod is rotatably connected with the surface of the blocking piece;

The inner wall of connecting pipe is equipped with the guide slot, the guide slot is followed the length direction distribution of connecting pipe, the inside of guide slot is equipped with friction portion and smooth part, the gyro wheel with friction portion and smooth part looks adaptation.

When the air pressure in the connecting pipe is enhanced, the blocking block is subjected to the action of air pressure to generate micro-rotation, the supporting rod is driven to move through the connecting rod, the supporting rod drives the roller to slide on the surface of the friction part, the roller cannot rotate at the moment, the roller is in a sliding friction state with the friction part, the blocking block is limited to rotate and open at the speed under the condition of friction resistance between the roller and the friction part, until the mold cavity is separated from the mold base, the roller slides to the position of the smooth part from the friction part, at the moment, the sliding friction acting force between the roller and the smooth part is smaller than the sliding friction acting force between the roller and the friction part, therefore, under the action of the air pressure in the connecting pipe, the blocking block instantaneously rotates, the connecting pipe is completely opened, and air in the air cavity instantaneously enters the inner cavity through the connecting pipe.

Further, when the first piston plate is in contact with the bottom surface of the sealing cavity, the first piston plate can slide relative to the choke rod, a first stop block is fixedly arranged on the inner side wall of the sealing cavity, the upward movement stroke of the first piston plate is limited by the first stop block, and when the first piston plate is in contact with the first stop block, the first piston plate can slide relative to the choke rod, so that the first piston plate is prevented from limiting the movement stroke of the choke rod.

Compared with the prior art, the invention has the following beneficial effects:

1. this electric kettle's production facility, through the combined design of injection pipe, branch pipe, material injecting channel and back pressure pipe, piston block and the first of choke block, can pour into the material of moulding plastics into a plurality of floor chambeies into to when the material injecting pressure in one or more material injecting channel reaches the settlement threshold value, the direction of delivery of material of moulding plastics is adjusted automatically, thereby improve the mobility of the material of moulding plastics in the cavity between die cavity and die holder, guarantee that the material of moulding plastics fills full cavity, be favorable to reducing the material injecting pressure of material of moulding plastics simultaneously, the material injecting effect of health preserving kettle base injection molding processing is good.

2. This production facility of electric kettle, through the combined design of flow blocking rod and pipe and annotate the material and say, after annotating the injection molding material into the cavity, can avoid the injection molding material in the pipe to enter into annotating in the material way, thereby avoid appearing the condition of weeping, simultaneously flow blocking rod, piston plate one, sealed chamber, air current passageway one and air current passageway two with the inside modular and piston plate two of taking off of inner chamber and air cavity and connecting pipe's combined design, when the injection molding material to pipe and annotate the material and say inside, can realize carrying out automatic drawing of patterns operation to the base of injection molding after the health preserving kettle, need not to use independent special drawing of patterns system structure, the base drawing of patterns is effectual.

Drawings

FIG. 1 is a perspective view of a base structure of the health preserving kettle of the present invention;

FIG. 2 is a perspective view showing the structure of the upper and lower molds of the present invention;

FIG. 3 is a front view showing the internal structure of the upper and lower molds of the present invention;

FIG. 4 is a perspective view of the upper die structure of the present invention;

FIG. 5 is a front view showing the internal structure of the upper die of the present invention;

FIG. 6 is a schematic view of the structure of FIG. 5A according to the present invention;

FIG. 7 is a schematic view of the structure of FIG. 5B according to the present invention;

FIG. 8 is a schematic view of the structure of FIG. 5C according to the present invention;

FIG. 9 is a top view showing the internal structure of the connecting pipe according to the present invention;

fig. 10 is a side view showing the internal structure of the connection pipe of the present invention.

In the figure: 1. a lower die; 101. a mold cavity; 2. an upper die; 3. a die holder; 31. rib plate cavity; 4. a material injection pipe; 41. a branch pipe; 5. a conduit; 51. a first blocking block; 6. a back pressure pipe; 61. a piston block; 7. a material injection channel; 8. a telescopic cylinder; 81. a choke rod; 9. sealing the cavity; 91. a first piston plate; 92. a first stop block; 10. an air flow channel I; 11. an air flow channel II; 12. an inner cavity; 121. removing the module; 122. a second piston plate; 123. a second stop block; 13. an air cavity; 14. a connecting pipe; 141. blocking; 15. a support rod; 151. a roller; 152. a connecting rod; 16. a guide groove; 161. a friction part; 162. a smoothing portion.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

The embodiment of the production equipment of the electric kettle is as follows:

Referring to fig. 1-10, a production device for an electric kettle is disclosed, a base of the health-care kettle is produced by adopting an injection molding processing mode, a plurality of rib plates are designed in the health-care kettle and used for improving the supporting strength of the base, the production device comprises a lower die 1 and an upper die 2, a die cavity 101 is formed in the lower die 1, the die cavity 101 is matched with the base of the health-care kettle, a die holder 3 is fixedly arranged on the lower surface of the upper die 2, a plurality of rib plate cavities 31 are formed on the side surface of the die holder 3, the rib plate cavities 31 are identical with the rib plate structures in the base of the health-care kettle, the die holder 3 is matched with the die cavity 101, after the die holder 3 is combined with the die cavity 101, the space structure between the die holder 3 and the die cavity 101 is identical with the base structure of the health-care kettle, a feeding pipe 4 is fixedly arranged on the upper surface of the upper die 2, and a plurality of branch pipes 41 are arranged on the side surface of the lower end of the feeding pipe 4.

The inside of die holder 3 is provided with a plurality of material injecting channel 7, and a plurality of material injecting channel 7 communicates with a plurality of floor chamber 31 respectively, and through pipe 5 intercommunication between material injecting channel 7 and the branch pipe 41, the material injecting pipe 4 is through branch pipe 41, pipe 5 and material injecting channel 7 with the injection molding material of melting through floor chamber 31 into the cavity between die cavity 101 and the die holder 3.

The connection of the guide pipe 5 and the branch pipe 41 is provided with a first blocking block 51, and when the injection pressure in the injection channel 7 reaches a set threshold value, the injection molding material in the branch pipe 41 is prevented from entering the guide pipe 5 by the first blocking block 51.

The joint of the guide pipe 5 and the branch pipe 41 adopts a T-shaped pipe design, the first blocking block 51 is slidably arranged in one end of the guide pipe 5 far away from the material injection channel 7, and a compressed reset spring is arranged between the first blocking block 51 and the inner wall of the guide pipe 5.

The lower surface of the conduit 5 is provided with a U-shaped back pressure pipe 6, two ends of the back pressure pipe 6 are positioned at two sides of the joint of the conduit 5 and the branch pipe 41, and two ends of the back pressure pipe 6 are respectively communicated with the pipelines inside the conduit 5 at two sides of the first block 51; the first block 51 is in sealing sliding connection with the guide pipe 5, and a piston block 61 is arranged in sealing sliding connection in the inner part of one end of the first block 51, which is far away from the back pressure pipe 6 at the side of the compression spring.

When the injection pressure in the injection channel 7 reaches the set threshold, the injection material in the conduit 5 has the same pressure on the surfaces of the piston block 61 and the first block 51, and meanwhile, the piston block 61 compresses the air between the piston block and the first block 51 to generate a pushing force on the surface of the first block 51, which is close to the side of the compressed return spring, and the pushing force is overlapped with the force of the compressed return spring on the first block 51, so that the first block 51 is driven to move to the position of the connection part of the conduit 5 and the branch pipe 41, and the size of the passage opening of the connection part of the conduit 5 and the branch pipe 41 is reduced, so that the injection material in the branch pipe 41 is prevented from continuously entering the conduit 5.

The junction of pipe 5 and notes material way 7 adopts T shape pipe design, and the inside of annotating material way 7 slidable mounting has the flow blocking rod 81 from top to bottom, and the body of rod and the notes material way 7 looks adaptation of flow blocking rod 81, and the upper surface fixed mounting of last mould 2 has telescopic cylinder 8, and telescopic cylinder 8 is the pneumatic cylinder, utilizes telescopic cylinder 8 control flow blocking rod 81 to slide from top to bottom.

When the guide pipe 5 is used for injecting materials into the material injection channel 7, the lower end of the flow blocking rod 81 is positioned above the joint of the guide pipe 5 and the material injection channel 7, when the material injection pressure in the material injection channel 7 reaches a set threshold value, the flow blocking rod 81 is driven by the telescopic cylinder 8 to move downwards, the flow blocking rod 81 pushes injection materials in the material injection channel 7 into the cavity, meanwhile, the flow blocking rod 81 is used for preventing the injection materials in the guide pipe 5 from entering the material injection channel 7, and the phenomenon of material leakage of the material injection channel 7 is avoided when the mold cavity 101 is separated from the mold base 3.

When the injection pressure in one or more of the injection channels 7 reaches the set threshold value, the corresponding injection channel 7 is in charge of filling injection material in the cavity space of the injection, the first block 51 is used for preventing the injection material in the branch pipe 41 from entering the corresponding guide pipe 5, and the injection material is easier to enter the guide pipe 5 corresponding to other cavity spaces which are not filled with injection material under the action of the injection pipe 4, so that the injection material can be conveniently and quickly uniformly filled in the cavity between the die cavity 101 and the die holder 3.

A plurality of sealing cavities 9 are arranged in the upper die 2, the plurality of sealing cavities 9 respectively correspond to the plurality of material injecting channels 7, and the choke rod 81 axially penetrates through the sealing cavities 9; the surface of the choke rod 81 is provided with a piston plate one 91, and the piston plate one 91 is hermetically and slidably mounted in the seal chamber 9.

When the first piston plate 91 contacts with the bottom surface of the sealing cavity 9, the first piston plate 91 can slide relative to the flow blocking rod 81, the first stop block 92 is fixedly arranged on the inner side wall of the sealing cavity 9, the upward movement stroke of the first piston plate 91 is limited by the first stop block 92, and when the first piston plate 91 contacts with the first stop block 92, the first piston plate 91 can slide relative to the flow blocking rod 81, so that the first piston plate 91 is prevented from limiting the movement stroke of the flow blocking rod 81.

The inside of die holder 3 is provided with inner chamber 12, and inner chamber 12 is the U-shaped chamber, and the opening of inner chamber 12 is located the surface of die holder 3, and the sealed slidable mounting in inner chamber 12 has a stripper piece 121, and stripper piece 121 is located the terminal surface and the surface looks adaptation of die holder 3 of inner chamber 12 open side, communicates through air current passageway one 10 between the space above the piston plate one 91 of inner chamber 12 and sealed intracavity 9.

When the choke rod 81 moves downwards, the piston plate 91 is driven to move together, the pressure in the space above the piston plate 91 is reduced, the pressure in the space below the piston plate 91 is increased, accordingly, negative pressure is generated in the inner cavity 12, the demoulding block 121 is driven to move towards the inner direction of the inner cavity 12, negative pressure generated in the space, close to the opening of the inner cavity 12, of the demoulding block 121 can generate adsorption force on the base of the health-preserving kettle formed in the cavity between the mould cavity 101 and the mould base 3, and when the mould cavity 101 is separated from the mould base 3, the base of the health-preserving kettle is separated from the mould cavity 101 by utilizing the negative pressure.

A reset spring is arranged between the demoulding module 121 and the inner wall of the inner cavity 12, a second piston plate 122 is arranged in the inner cavity 12 in a sealing sliding manner, friction force exists between the second piston plate 122 and the inner cavity 12, a gap is arranged between the second piston plate 122 and the demoulding block 121, a second stop block 123 is fixedly arranged on the inner wall of the inner cavity 12, which is close to one side of the gap, of the second piston plate 122, and the second stop block 123 is used for limiting the travel of the second piston plate 122 in the direction of the demoulding block 121.

The friction resistance between the second piston plate 122 and the inner cavity 12, and the gap between the second piston plate 122 and the demoulding block 121, when negative pressure is generated in the sealed cavity 9 above the first piston plate 91, the friction resistance received by the second piston plate 122 and the compressibility of the space in the gap are utilized to slow down the moving time of the demoulding block 121 to the inner cavity 12, so that after the flow blocking rod 81 pushes the injection molding material in the injection channel 7 into the cavity between the die cavity 101 and the die holder 3, the demoulding block 121 can only move to the inner cavity 12 after the injection molding material in the cavity is fixed and formed, and at the moment, the inner cavity 12 can only generate adsorption force on the base of the formed health-preserving kettle.

An air cavity 13 is arranged in the die holder 3, and the air cavity 13 is communicated with a space below the first piston plate 91 in the sealing cavity 9 through a second air flow channel 11; a connecting pipe 14 is arranged between the air cavity 13 and the inner cavity 12, and one end of the connecting pipe 14, which is far away from the air cavity 13, is communicated with a gap between the piston plate II 122 and the demoulding block 121; the inside of the connection pipe 14 is provided with a blocking piece 141, and when the air pressure inside the air chamber 13 reaches a set threshold value, a passage inside the connection pipe 14 is opened.

After the mold cavity 101 is separated from the mold base 3, the base of the molded health-preserving kettle is adsorbed on the surface of the mold base 3, at this time, the air pressure in the air cavity 13 reaches the set threshold value, the air pressure pushes away the blocking block 141, the air in the air cavity 13 instantaneously enters into the gap between the piston plate two 122 and the demolding block 121 through the connecting pipe 14, and the demolding block 121 instantaneously moves towards the opening end direction of the inner cavity 12 under the action of the air pressure in the gap and impacts the surface of the base of the molded health-preserving kettle, so that the base is separated from the mold base 3, and the demolding effect is realized.

The inside that is close to inner chamber 12 one end at connecting pipe 14 is installed in the shutoff piece 141 rotation, and the inside of connecting pipe 14 is provided with branch 15, and the both ends of branch 15 all are equipped with unidirectional rotation's gyro wheel 151, and the internally mounted of gyro wheel 151 has ratchet and pawl structure, utilizes ratchet and pawl cooperation, realizes the unidirectional rotation of gyro wheel 151 relative branch 15, and the surface rotation of branch 15 installs connecting rod 152, and the one end that branch 15 was kept away from to connecting rod 152 is connected with the surface rotation of shutoff piece 141.

The inner wall of the connection pipe 14 is provided with a guide groove 16, the guide groove 16 is distributed along the length direction of the connection pipe 14, a friction part 161 and a smooth part 162 are arranged in the guide groove 16, and the roller 151 is matched with the friction part 161 and the smooth part 162.

When the air pressure in the connecting pipe 14 is increased, the blocking block 141 is slightly rotated under the action of the air pressure, the supporting rod 15 is driven to move by the connecting rod 152, the supporting rod 15 drives the roller 151 to slide on the surface of the friction part 161, at the moment, the roller 151 cannot rotate, the roller 151 and the friction part 161 are in a sliding friction state, under the condition of friction resistance between the roller 151 and the friction part 161, the rotation opening speed of the blocking block 141 is limited until the roller 151 slides to the position of the smooth part 162 from the friction part 161 after the die cavity 101 is separated from the die holder 3, at the moment, the sliding friction acting force between the roller 151 and the smooth part 162 is smaller than the sliding friction acting force between the roller 151 and the friction part 161, therefore, under the action of the air pressure in the connecting pipe 14, the blocking block 141 instantaneously rotates, the connecting pipe 14 is completely opened, and the air in the air cavity 13 instantaneously enters the inner cavity 12 through the connecting pipe 14.

When the choke rod 81 and the first piston plate 91 are restored, the gas in the gap between the second piston plate 122 and the demoulding block 121 enters the air cavity 13 through the communicating pipe 14, a restoring spring is arranged between the blocking block 141 and the inner wall of the connecting pipe 14, the blocking block 141 is restored under the action of the restoring spring, at this time, the strut 15 slides from the smooth part 162 to the direction of the friction part 161, and simultaneously the roller 151 rolls on the surfaces of the smooth part 162 and the friction part 161, so that the resistance of restoring the blocking block 141 is reduced.

Base injection molding working principle of health preserving kettle:

Firstly, the lower die 1 and the upper die 2 are mutually close to each other by utilizing a hydraulic system, so that the die cavity 101 and the die holder 3 are matched together, at the moment, injection molding materials are conveyed into the branch pipe 41 through the injection pipe 4, enter the rib plate cavity 31 through the guide pipe 5 and the injection channel 7, and continuously enter a cavity between the die cavity 101 and the die holder 3 through the rib plate cavity 31.

When one or more of the material injecting channels 7 is/are responsible for filling injection materials in the cavity space of the material injecting channel 7, the injection pressure in the material injecting channel 7 can reach the set threshold value, at the moment, the injection materials in the branch pipe 41 are prevented from entering the corresponding guide pipe 5 by the first blocking block 51, the injection materials in the material injecting pipe 4 are easier to enter the guide pipe 5 corresponding to the cavity space which is not fully filled with the injection materials, so that the injection materials can be conveniently and quickly and uniformly filled into the cavity between the die cavity 101 and the die holder 3, and when the base of the health-preserving kettle is processed by horizontal injection molding, the design of the branch pipe 41, the guide pipe 5 and the first blocking block 51 can realize quick and uniform filling of the injection materials.

When the injection pressure in the injection channel 7 reaches a set threshold value, the telescopic cylinder 8 is used for driving the flow blocking rod 81 to move downwards, the flow blocking rod 81 pushes injection molding materials in the injection channel 7 into the cavity, and meanwhile, the flow blocking rod 81 is used for preventing injection molding materials in the guide pipe 5 from entering the injection channel 7, so that the phenomenon of material leakage of the injection channel 7 when the die cavity 101 is separated from the die holder 3 is avoided.

When the choke rod 81 moves downwards, the piston plate one 91 is driven to move together, the pressure of the space above the piston plate one 91 is reduced, the pressure of the space below the piston plate one 91 is increased, accordingly, negative pressure is generated in the inner cavity 12, the demoulding block 121 is driven to move towards the inner direction of the inner cavity 12, negative pressure generated in the space, close to the opening of the inner cavity 12, of the demoulding block 121 can generate adsorption force on the base of the molded health-preserving kettle in the cavity between the mould cavity 101 and the mould base 3, and when the mould cavity 101 is separated from the mould base 3, the base of the health-preserving kettle is separated from the mould cavity 101 by the negative pressure in the cavity between the mould cavity 101 and the mould base 3.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a production facility of electric kettle, includes lower mould (1) and goes up mould (2), die cavity (101) have been seted up to the inside of lower mould (1), the lower surface fixed mounting of going up mould (2) has die holder (3), a plurality of floor chamber (31) have been seted up to the side surface of die holder (3), die holder (3) with die cavity (101) looks adaptation, its characterized in that: the upper surface of the upper die (2) is fixedly provided with a material injection pipe (4), and the side surface of the lower end of the material injection pipe (4) is provided with a plurality of branch pipes (41);

A plurality of material injecting channels (7) are arranged in the die holder (3), the material injecting channels (7) are respectively communicated with the rib plate cavities (31), and the material injecting channels (7) are communicated with the branch pipes (41) through guide pipes (5);

And a first blocking block (51) is arranged at the joint of the guide pipe (5) and the branch pipe (41), and when the injection pressure in the injection channel (7) reaches a set threshold value, the injection molding material in the branch pipe (41) is prevented from entering the guide pipe (5) by the first blocking block (51).

2. The electric kettle production facility of claim 1 wherein: the connecting part of the guide pipe (5) and the branch pipe (41) adopts a T-shaped pipe design, the first blocking block (51) is slidably arranged in one end of the guide pipe (5) far away from the material injection channel (7), and a compressed reset spring is arranged between the first blocking block (51) and the inner wall of the guide pipe (5);

The lower surface of the conduit (5) is provided with a U-shaped back pressure pipe (6), two ends of the back pressure pipe (6) are positioned at two sides of the joint of the conduit (5) and the branch pipe (41), and two ends of the back pressure pipe (6) are respectively communicated with pipelines inside the conduit (5) at two sides of the first block (51);

The first blocking block (51) is in sealing sliding connection with the guide pipe (5), and a piston block (61) is arranged in the inner sealing sliding manner at one end of the back pressure pipe (6) at the side, far away from the return spring, of the first blocking block (51).

3. The electric kettle production facility of claim 2 wherein: the connecting part of the guide pipe (5) and the material injection channel (7) adopts a T-shaped pipe design, a flow blocking rod (81) is arranged in the material injection channel (7) in a vertically sliding manner, a rod body of the flow blocking rod (81) is matched with the material injection channel (7), a telescopic cylinder (8) is fixedly arranged on the upper surface of the upper die (2), and the flow blocking rod (81) is controlled to vertically slide by the telescopic cylinder (8);

When the guide pipe (5) is used for injecting materials into the material injection channel (7), the lower end of the flow blocking rod (81) is positioned above the joint of the guide pipe (5) and the material injection channel (7).

4. A production facility for an electric kettle according to claim 3 wherein: a plurality of sealing cavities (9) are arranged in the upper die (2), the plurality of sealing cavities (9) respectively correspond to the plurality of material injection channels (7), and the choke rod (81) axially penetrates through the sealing cavities (9);

the surface of the choke rod (81) is provided with a first piston plate (91), and the first piston plate (91) is installed in the sealing cavity (9) in a sealing sliding manner;

The inside of die holder (3) is provided with inner chamber (12), inner chamber (12) are U-shaped chamber, the opening of inner chamber (12) is located the surface of die holder (3), the inside seal slidable mounting of inner chamber (12) has a drawing of patterns piece (121), drawing of patterns piece (121) are located the terminal surface of inner chamber (12) open side with the surface looks adaptation of die holder (3), inner chamber (12) with through air current passageway one (10) intercommunication between the space of the inside piston board one (91) top of sealed chamber (9).

5. The electric kettle production facility of claim 4 wherein: a reset spring is arranged between the demoulding block (121) and the inner wall of the inner cavity (12), a second piston plate (122) is arranged in the inner cavity (12) in a sealing sliding manner, and a gap is arranged between the second piston plate (122) and the demoulding block (121);

An air cavity (13) is formed in the die holder (3), and the air cavity (13) is communicated with a space below a first piston plate (91) in the sealing cavity (9) through a second air flow channel (11);

A connecting pipe (14) is arranged between the air cavity (13) and the inner cavity (12), and one end, far away from the air cavity (13), of the connecting pipe (14) is communicated with a gap between the piston plate II (122) and the demoulding block (121);

A blocking block (141) is arranged in the connecting pipe (14), and when the air pressure in the air cavity (13) reaches a set threshold value, a channel in the connecting pipe (14) is opened.

6. The electric kettle production facility of claim 5 wherein: the blocking block (141) is rotatably arranged in the connecting pipe (14) near one end of the inner cavity (12), a supporting rod (15) is arranged in the connecting pipe (14), rollers (151) capable of rotating unidirectionally are arranged at two ends of the supporting rod (15), a connecting rod (152) is rotatably arranged on the surface of the supporting rod (15), and one end, far away from the supporting rod (15), of the connecting rod (152) is rotatably connected with the surface of the blocking block (141);

The inner wall of connecting pipe (14) is equipped with guide slot (16), guide slot (16) are followed the length direction distribution of connecting pipe (14), the inside of guide slot (16) is equipped with friction portion (161) and smooth portion (162), gyro wheel (151) with friction portion (161) and smooth portion (162) looks adaptation.

7. Production equipment of an electric kettle according to any one of claims 4-6, characterized in that: when the first piston plate (91) is in contact with the bottom surface of the sealing cavity (9), the first piston plate (91) can slide relative to the flow blocking rod (81), a first stop block (92) is fixedly arranged on the inner side wall of the sealing cavity (9), the first stop block (92) is used for limiting the upward movement of the first piston plate (91), and when the first piston plate (91) is in contact with the first stop block (92), the first piston plate (91) can slide relative to the flow blocking rod (81).