CN113580489A

CN113580489A - High-precision numerical control injection molding machine

Info

Publication number: CN113580489A
Application number: CN202110946402.0A
Authority: CN
Inventors: 朱金娥; 王宏民; 陈毅
Original assignee: Xianju Ruiheng Blister Factory
Current assignee: Xianju Ruiheng Blister Factory
Priority date: 2021-08-18
Filing date: 2021-08-18
Publication date: 2021-11-02

Abstract

The invention discloses a high-precision numerical control injection molding machine, which comprises a flow channel, wherein a feeding funnel is arranged at the top of the flow channel, a scraper blade is arranged on the inner wall of the feeding funnel in a rotating manner and used for scraping materials bonded on the inner wall of the feeding funnel, a feeding channel is arranged in the flow channel, the input end of the feeding channel is communicated with the feeding funnel, the output end of the feeding funnel is communicated with a transition cylinder, and a stirring assembly is arranged in the transition cylinder and used for mixing and stirring raw materials entering the transition cylinder; through being provided with different inlet pipes in transition section of thick bamboo outside for different materials enter into transition section of thick bamboo through the inlet pipe and inside can carrying out the intensive mixing, and then inside discharging channel through transition bobbin base portion enters into the runner, later through the runner outflow by injection moulding, can carry out preliminary mixing before the material enters into the runner through this structure, thereby improve the injection moulding effect in later stage.

Description

High-precision numerical control injection molding machine

Technical Field

The invention relates to the technical field of injection molding machines, in particular to a high-precision numerical control injection molding machine.

Background

Plastics are a novel structural material widely used in various departments of national economy and the living field of people in all countries of the world, along with the development of economy, the application of plastics in various fields is continuously expanded, so that enterprises face great opportunities, on the other hand, plastic products become more and more complex in structure and continuously develop towards miniaturization in volume, and the products have near strict precision requirements, appearance requirements and stable mass production, and are a great challenge for the enterprises.

The chinese invention patent CN102909822B discloses an electric omnibearing numerical control injection molding machine suitable for producing injection products with high precision and complex three-dimensional shapes. It mainly comprises: the injection molding machine comprises a machine base, a main board, four groups of electric die guiding devices, a cross-shaped sliding groove die assembly and an injection device assembly, wherein the four groups of electric die guiding devices are arranged on the front surface of the machine. The slide block die is arranged in a chute of the cross die frame and is connected with a shaft of an electric driver, and the functions of die closing and die opening are completed by the linear motion of the shaft of the electric driver. The injection system of the machine is used to inject plasticized, melted and homogenized plastic material into the mold cavity of a mold, thereby producing high quality plastic articles. The guide die and the injection device all use electric power as power, so that the manufacturing, using and maintaining cost of equipment is reduced, the pollution of noise and oil stains to the environment is reduced, the production efficiency of die-casting products is improved, the operation is simpler, safer and more efficient, and the production stability and the quality of plastic products are improved.

However, the equipment lacks corresponding structure in the material injection process of the injection molding machine, and is used for mixing raw materials or mixing the raw materials before material injection, or injecting the raw materials into the flow channel through two injection ports to mix the raw materials, so that the former efficiency is lower, and the latter is unsatisfactory in mixing effect, thereby influencing the injection molding effect in the later period.

Therefore, there is a need to provide a high-precision numerical control injection molding machine to solve the above technical problems.

Disclosure of Invention

The invention aims to provide a high-precision numerical control injection molding machine, which solves the problems that the prior art has low efficiency when raw materials are mixed without being mixed before material injection and are not injected into a flow passage through two injection ports for mixing, and the later injection molding effect is influenced because the mixing effect of the prior art is not satisfactory.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high accuracy numerical control injection molding machine, includes the runner, the runner top is provided with feed hopper, it is provided with the scraper blade to rotate on the feed hopper inner wall and is used for striking off the material that bonds on the feed hopper inner wall, the inside feedstock channel that is provided with of runner, the feedstock channel input is linked together with feed hopper, and feed hopper output intercommunication is provided with a transition section of thick bamboo, and the inside stirring subassembly that is provided with of a transition section of thick bamboo for mix the stirring to getting into the inside raw materials of a transition section of thick bamboo, the feed hopper top is provided with and is used for driving scraper blade and stirring subassembly pivoted drive assembly.

When specifically using, the material is at first carried to inside the feedstock channel, then make the material enter into a transition section of thick bamboo through feedstock channel and inlet pipe under the effect of external pressure inside, through be provided with different inlet pipes in transition section of thick bamboo outside, make different materials enter into transition section of thick bamboo through the inlet pipe and inside can carry out the intensive mixing, and then inside the discharging channel through transition bobbin base portion enters into the runner, later flow out by injection moulding through the runner, can stir the material through the stirring subassembly and mix, and the transmission subassembly can drive the stirring subassembly and rotate and mix the material.

As a further scheme of the invention, the output end of the feeding channel is communicated with a feeding pipe, and one end of the feeding pipe, which is far away from the feeding channel, is communicated with the transition cylinder.

During the specific use, the material is at first carried to inside the feedstock channel, then makes the material enter into a transition section of thick bamboo through feedstock channel and inlet pipe under the effect of external pressure inside, through being provided with different inlet pipes in transition section of thick bamboo outside for different materials enter into transition section of thick bamboo through the inlet pipe and inside can carry out the intensive mixing.

As a further scheme of the invention, a vertical shaft is arranged in the feeding hopper, the vertical shaft is rotatably arranged in the feeding hopper, the bottom end of the outer side of the vertical shaft is fixedly connected with a first spiral feeding plate, the bottom end of the scraper is fixedly connected with a support rod, and one end of the support rod, which is far away from the scraper, is fixed with the vertical shaft.

When the scraper blade is used specifically, the scraper blade rotates to scrape off the inner wall of the feeding funnel when materials are conveyed, so that the materials are prevented from being bonded on the inner wall of the feeding funnel, and smoothness of feeding is guaranteed.

According to a further scheme of the invention, the stirring assembly comprises a circular shaft, a second spiral feeding plate is fixedly connected to the bottom end of the outer side of the circular shaft, a loop bar is connected to the outer side of the circular shaft in a sliding manner, a limiting block is fixedly connected to the outer side of the circular shaft, a limiting groove matched with the limiting block is formed in the inner wall of the loop bar, a stirring rod is fixedly connected to the bottom end of the outer side of the loop bar, an inner sliding sleeve is fixedly connected to the outer side of the circular shaft, an outer sliding sleeve is fixedly connected to the bottom end of the outer side of the loop bar, the inner sliding sleeve is arranged on the inner side of the outer sliding sleeve and is in sliding connection with the outer sliding sleeve, a first spring is arranged between the outer sliding sleeve and the inner sliding sleeve, and the loop bar penetrates through the transition cylinder and is in rotating connection with the transition cylinder.

When the material conveying device is used, the sleeve rod can be driven to rotate through the transmission assembly, the limiting blocks on the circular shaft are connected with the limiting grooves on the inner wall of the sleeve rod in a sliding mode, therefore, the circular shaft inside the sleeve rod can be driven to rotate through the rotation of the sleeve rod, the stirring rod can be driven to rotate through the rotation of the sleeve rod, the second spiral feeding plate can be driven to rotate through the rotation of the circular shaft, when materials enter the transition cylinder through the feeding pipe, the materials can be stirred and mixed through the rotating stirring rod, then the mixed materials are extruded into the discharging channel through the second spiral feeding plate, so that the materials are extruded into the flow channel, in the process that the materials are extruded by the second spiral feeding plate and conveyed to the flow channel, the materials can form a reaction force on the second spiral feeding plate, so that the second spiral feeding plate is driven to move upwards, and the circular shaft can be driven to move upwards through the second spiral feeding plate, here the circular shaft can overcome first spring upward movement, and like the same reason, when the material was all extruded to the runner inside, the material was to the attack of second spiral feeding plate with strength disappearance this moment, can drive circular shaft downward movement under the effort of first spring.

As a further scheme of the invention, the transmission assembly comprises a motor, a transmission shaft is arranged at the output end of the motor, belt wheels are fixedly connected to the outer sides of the vertical shaft, the loop bar and the transmission shaft, and a belt is arranged on the outer side of each belt wheel in a transmission manner.

When specifically using, drive the transmission shaft through the motor output and rotate, and then drive the belt through the band pulley and rotate, can drive vertical axis and loop bar through the belt and rotate, the vertical axis rotates and drives first spiral delivery sheet and rotate, extrudees the material to feedstock channel inside, rotates through the loop bar and can drive its inside circle axle and rotate to drive the rotation of second spiral delivery sheet.

As a further scheme of the invention, a cleaning assembly is arranged on the outer side of the scraper and comprises a sliding block arranged on the outer side of the scraper.

When the scraper is used specifically, residues on the scraper can be removed through the sliding block.

As a further scheme of the invention, the cleaning assembly further comprises a stop block arranged at the bottom end of the outer side of the scraper plate, the front side and the rear side of the sliding block are fixedly provided with baffle plates, the bottom end of the outer side of the vertical shaft is fixedly provided with a ball nut pair, a telescopic rod is fixedly connected between the ball nut pair and the sliding block, the outer side of the vertical shaft is fixedly provided with a reciprocating screw rod meshed with the ball nut pair, and the ball nut pair can be driven to move back and forth on the reciprocating screw rod through the meshing of the ball nut pair and the reciprocating screw rod, so that the sliding block is driven to move on the scraper plate.

During the concrete use, can drive ball nut pair round trip movement on reciprocating screw at ball nut pair and reciprocating screw's meshing to drive the slider and move on the scraper blade, can strike off the residue on the scraper blade and fall to the striker plate on, when the slider moves to the peak, can be with residue discharge feed hopper on the striker plate, through being provided with the telescopic link, can extend when the slider moves along the scraper blade upward movement, thereby be favorable to driving the slider rebound.

As a further scheme of the invention, a support is arranged at the top of the feeding funnel, the support is fixedly connected to the top of the flow channel, the reciprocating screw rod penetrates through the support and is in sliding connection with the support, a positioning block is fixedly connected to the outer side of the reciprocating screw rod, a positioning plate is fixedly arranged at the top end of the outer side of the reciprocating screw rod, the positioning plate is fixedly connected with the support, a positioning groove is arranged on one side, close to the reciprocating screw rod, of the positioning plate, and the positioning block is in sliding connection with the positioning groove.

During specific use, the reciprocating screw rod can stably move up and down through the sliding connection of the positioning block and the positioning plate.

As a further scheme of the invention, a transverse plate is arranged at the top of the support, the outer side of the circular shaft is fixedly connected with the transverse plate, support rods are fixedly connected to two sides of the bottom of the transverse plate, the support rods penetrate through the support and are in sliding connection with the support, a lantern ring is fixedly connected to the outer side of the reciprocating screw rod, the bottom end of each support rod is fixedly connected with the lantern ring, a second spring is arranged between the lantern ring and the support, and the second spring is arranged on the outer side of the reciprocating screw rod.

As a further scheme of the invention, the front side and the rear side of the scraper are both provided with strip-shaped grooves, the inner sides of the sliders are provided with bulges matched with the strip-shaped grooves, and the bulges are connected to the inner parts of the strip-shaped grooves in a sliding manner.

When the structure is used specifically, the sliding block can be prevented from being separated from the scraper, and then the sliding block can be kept to move stably on the scraper.

The working principle is as follows: the transmission shaft is driven to rotate through the output end of the motor, the belt is driven to rotate through the belt wheel, the vertical shaft and the sleeve rod can be driven to rotate through the belt, the vertical shaft rotates to drive the first spiral feeding plate to rotate, materials are extruded into the feeding channel, the round shaft in the sleeve rod can be driven to rotate through the rotation of the sleeve rod, so that the second spiral feeding plate is driven to rotate, in the process that the second spiral feeding plate extrudes the materials to convey the materials to the flow channel, the materials form a reaction force on the second spiral feeding plate, the second spiral feeding plate is driven to move upwards, the round shaft can be driven to move upwards through the second spiral feeding plate, the round shaft can overcome the upward movement of the first spring, and similarly, when the materials are all extruded into the flow channel, the attack force of the materials on the second spiral feeding plate disappears, the round shaft can be driven to move downwards under the action force of the first spring, when the reaction force of the material to the second spiral feeding plate disappears, the second spiral feeding plate can be driven to move downwards under the action of the first spring, the circular shaft can be driven to move downwards, so that the transverse plate is driven to move downwards by the circular shaft, the transverse plate can drive the supporting rod to move downwards, the lantern ring is driven by the supporting rod to overcome the action force of the second spring to move downwards, the reciprocating screw rod can be driven to move downwards by the lantern ring to be meshed with the ball nut pair, at the moment, the motor continuously drives the vertical shaft to rotate by the belt, the vertical shaft drives the scraper plate to rotate by the supporting rod, the scraper plate drives the ball nut pair to rotate by the telescopic rod, at the moment, the ball nut pair is meshed with the reciprocating screw rod, the ball nut pair can be driven to move back and forth on the reciprocating screw rod by the meshing of the ball nut pair and the reciprocating screw rod, thereby driving the sliding block to move on the scraper plate, and residue on the scraper plate can be scraped and fall on the baffle plate, when the slider moves to the highest point, the residue on the baffle plate can be discharged out of the feeding hopper.

According to the high-precision numerical control injection molding machine, the feeding channel is arranged, when the high-precision numerical control injection molding machine is used, materials are firstly conveyed into the feeding channel, then the materials enter the transition cylinder through the feeding channel and the feeding pipes under the action of external pressure, different feeding pipes are arranged on the outer side of the transition cylinder, so that the different materials can enter the transition cylinder through the feeding pipes and can be fully mixed, then the materials enter the flow channel through the discharging channel at the bottom of the transition cylinder, then the materials flow out through the flow channel and are subjected to injection molding, and the materials can be preliminarily mixed before entering the flow channel through the structure, so that the later injection molding effect is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the feed hopper and scraper configuration of the present invention;

FIG. 3 is a schematic view of the internal structure of the flow channel of the present invention;

FIG. 4 is a schematic view of the feed tube configuration of the present invention;

FIG. 5 is a schematic view of the first and second screw feeding plates of the present invention;

FIG. 6 is a schematic view of the construction of the stirring rod of the present invention;

FIG. 7 is a schematic view of the transition cartridge and feed tube configuration of the present invention;

FIG. 8 is an enlarged view of the portion A of FIG. 6 according to the present invention;

FIG. 9 is an enlarged view of the portion B of FIG. 6 according to the present invention;

FIG. 10 is an enlarged view of the structure of the portion C of FIG. 5 according to the present invention;

FIG. 11 is an enlarged view of the structure of portion D of FIG. 5 in accordance with the present invention.

In the figure: 1. a flow channel; 2. a bump; 3. a transition cylinder; 4. a feed channel; 5. a feed pipe; 6. a discharge channel; 7. a feed hopper; 8. a vertical axis; 9. a first screw feeding plate; 10. a squeegee; 11. a support bar; 12. a circular shaft; 13. a second screw feeding plate; 14. a loop bar; 15. a limiting block; 16. a limiting groove; 17. a stirring rod; 18. an inner sliding sleeve; 19. an outer sliding sleeve; 20. a first spring; 21. a motor; 22. a drive shaft; 23. a belt; 24. a slider; 25. a stopper; 26. a striker plate; 27. a ball nut pair; 28. a telescopic rod; 29. a reciprocating screw rod; 30. positioning blocks; 31. positioning a plate; 32. a transverse plate; 33. a strut; 34. a collar; 35. a second spring; 36. a strip-shaped groove.

Detailed Description

Embodiment 1, as shown in fig. 1 to 4, a high accuracy numerical control injection molding machine, including runner 1, runner 1 top one side is provided with lug 2, lug 2 and runner 1 integrated into one piece, lug 2 top is provided with a transition section of thick bamboo 3, runner 1 and lug 2 are inside to have seted up feedstock channel 4, feedstock channel 4 top is provided with inlet pipe 5, inlet pipe 5 bottom is linked together with feedstock channel 4, feedstock channel 4 top is linked together with a transition section of thick bamboo 3, lug 2 and runner 1 are located the below of a transition section of thick bamboo 3 and are provided with discharging channel 6, discharging channel 6 is linked together with feedstock channel 4 to discharging channel 6 is linked together with a transition section of thick bamboo 3.

During the use, the material is at first carried to inside feedstock channel 4, then makes the material enter into a transition section of thick bamboo 3 through feedstock channel 4 and inlet pipe 5 under the effect of external pressure inside, through being provided with different inlet pipe 5 in the transition section of thick bamboo 3 outside for different materials enter into transition section of thick bamboo 3 inside through inlet pipe 5 and can carry out the intensive mixing, and then enter into inside runner 1 through the discharging channel 6 of transition section of thick bamboo 3 bottom, later through runner 1 outflow by injection moulding.

In embodiment 2, as shown in fig. 1 to 9, feeding funnels 7 are respectively disposed on two sides of the top of the bump 2, the transition cylinder 3 is disposed between the two feeding funnels 7, the bottom ends of the feeding funnels 7 are communicated with the feeding channel 4, a vertical shaft 8 is disposed inside the feeding funnels 7, a first spiral feeding plate 9 is fixedly connected to the bottom end of the outer side of the vertical shaft 8, and the first spiral feeding plate 9 is located at the bottom end inside the feeding funnels 7;

further, a scraper 10 is arranged on the inner wall of the feeding hopper 7, a support rod 11 is fixedly connected to the bottom end of the scraper 10, and one end, far away from the scraper 10, of the support rod 11 is fixed to the vertical shaft 8.

During the use, send into the material inside feed hopper 7, drive first spiral feeding plate 9 through vertical axis 8 this moment and rotate, thereby extrude the material inside feedstock channel 4 through first spiral feeding plate 9, and then enter into inside inlet pipe 5 through feedstock channel 4, send into the material inside transition section of thick bamboo 3 through inlet pipe 5, through being provided with scraper blade 10, scraper blade 10 rotates when carrying the material and can strike off feed hopper 7's inner wall, thereby prevent that the material from bonding on feed hopper 7's inner wall, be favorable to guaranteeing the unobstructed of feeding.

Embodiment 3, as shown in fig. 1-2 and fig. 9, the top of vertical axis 8 is provided with drive assembly, transition section of thick bamboo 3 is inside to be provided with stirring subassembly, during the use, drives vertical axis 8 through drive assembly and rotates to drive first spiral feeding plate 9 through vertical axis 8 and rotate and extrude the material to the transition board inside, can stir the mixture through stirring subassembly to the material that sends into this moment, later discharging to the inside forward transport of runner 1, can carry out preliminary mixing through this structure with the material before getting into runner 1, be favorable to improving the degree of fusion of material.

Embodiment 4, as shown in fig. 1 to 8 and fig. 10 to 11, the stirring assembly includes a circular shaft 12, a second spiral feeding plate 13 is fixedly connected to a bottom end of an outer side of the circular shaft 12, a loop bar 14 is disposed on an outer side of the circular shaft 12, the circular shaft 12 penetrates the loop bar 14, a limiting block 15 is fixedly connected to an outer side of the circular shaft 12, a limiting groove 16 is disposed on an inner wall of the loop bar 14, the limiting block 15 is slidably connected to an inner portion of the limiting groove 16, an outer side of the circular shaft 12 extends to an outer side of the loop bar 14, a stirring rod 17 is fixedly connected to a bottom end of an outer side of the loop bar 14, an inner sliding sleeve 18 is fixedly connected to an outer side of the loop bar 12, an outer sliding sleeve 19 is fixedly connected to a bottom end of an outer side of the loop bar 14, the inner sliding sleeve 18 is disposed inside the outer sliding sleeve 19 and slidably connected to the outer sliding sleeve 19, a first spring 20 is disposed between the outer sliding sleeve 19 and the inner sliding sleeve 18, a top end of the first spring 20 is fixed to the outer sliding sleeve 19, the bottom end of the first spring 20 is fixed with the inner sliding sleeve 18, and the loop bar 14 penetrates through the transition cylinder 3 and is rotatably connected with the transition cylinder 3.

When the material mixing device is used, the sleeve rod 14 can be driven to rotate through the transmission assembly, the limiting block 15 on the circular shaft 12 is in sliding connection with the limiting groove 16 on the inner wall of the sleeve rod 14, therefore, the circular shaft 12 inside the sleeve rod can be driven to rotate through the rotation of the sleeve rod 14, the sleeve rod 14 can drive the stirring rod 17 to rotate, the circular shaft 12 can drive the second spiral feeding plate 13 to rotate, when a material enters the transition cylinder 3 through the feeding pipe 5, the material can be stirred and mixed through the rotating stirring rod 17, and then the mixed material is extruded to the inside of the discharging channel 6 through the second spiral feeding plate 13, so that the material is extruded to the inside of the flow channel 1;

in-process at second spiral feeding plate 13 extrusion material with its transport to runner 1, the material can form a reaction force to second spiral feeding plate 13, thereby drive second spiral feeding plate 13 upward movement, can drive circular shaft 12 upward movement through second spiral feeding plate 13, here circular shaft 12 can overcome first spring 20 upward movement, and in the same way, when the material is all extruded to runner 1 inside, the material disappears to the attack power of second spiral feeding plate 13 this moment, can drive circular shaft 12 downward movement under the effort of first spring 20.

Embodiment 5, as shown in fig. 5 to 7, the transmission assembly includes a motor 21, the motor 21 is fixedly installed through an external device, an output end of the motor 21 is provided with a transmission shaft 22, the outer sides of the vertical shaft 8, the loop bar 14 and the transmission shaft 22 are fixedly connected with a belt wheel, the outer side of the belt wheel is provided with a belt 23, and the bottom of the motor 21 is provided with a base.

During the use, drive transmission shaft 22 through motor 21 output and rotate, and then drive belt 23 through the band pulley and rotate, can drive vertical axis 8 and loop bar 14 through belt 23 and rotate, vertical axis 8 rotates and drives first spiral delivery sheet 9 and rotate, extrudees the material to feedstock channel 4 inside, rotates through loop bar 14 and can drive its inside circular shaft 12 and rotate to it rotates to drive second spiral delivery sheet 13.

Embodiment 6, as shown in fig. 1 and fig. 3 to 11, a cleaning assembly is disposed outside the scraper 10, the cleaning assembly includes a slider 24 slidably connected to the outside of the scraper 10, the slider 24 is U-shaped, a stopper 25 is fixedly connected to the bottom end of the outside of the scraper 10, the slider 24 is prevented from being separated from the stopper 25, striker plates 26 are disposed on both front and rear sides of the slider 24, a ball nut pair 27 is disposed at the bottom end of the outside of the vertical shaft 8, an expansion link 28 is fixedly connected between the ball nut pair 27 and the slider 24, a reciprocating screw 29 engaged with the ball nut pair 27 is disposed outside the vertical shaft 8, a bracket is disposed on the top of the feeding funnel 7, the bracket is fixedly connected to the top of the runner 1, a polish rod is disposed on the top end of the outside of the reciprocating screw 29, the reciprocating screw 29 penetrates through and is slidably connected to the bracket, a positioning block 30 is fixedly connected to the outside of the reciprocating screw 29, the reciprocating screw 29 outside in support top outside is provided with locating plate 31, locating plate 31 and support fixed connection, locating plate 31 is close to reciprocating screw 29 one side and is provided with the constant head tank, locating piece 30 and constant head tank sliding connection, the support top is provided with diaphragm 32, 12 outsides of circle axle and diaphragm 32 fixed connection, the equal fixedly connected with branch 33 in diaphragm 32 bottom both sides, branch 33 run through the support and with support sliding connection, reciprocating screw 29 outside fixedly connected with lantern ring 34, branch 33 bottom and the 34 fixed connection of the lantern ring, be provided with second spring 35 between the lantern ring 34 and the support, second spring 35 sets up in the reciprocating screw 29 outside.

When the reaction force of the material to the second spiral feeding plate 13 disappears, the second spiral feeding plate 13 can be driven to move downwards under the action of the first spring 20, the circular shaft 12 can be driven to move downwards, the transverse plate 32 is driven to move downwards by the circular shaft 12, the transverse plate 32 can drive the supporting rod 33 to move downwards, the supporting rod 33 drives the lantern ring 34 to move downwards against the action force of the second spring 35, the lantern ring 34 can drive the reciprocating screw 29 to move downwards to be engaged with the ball nut pair 27, the motor 21 can continue to drive the vertical shaft 8 to rotate by the belt 23, the vertical shaft 8 drives the scraping plate 10 to rotate by the supporting rod 11, the scraping plate 10 drives the ball nut pair 27 to rotate by the telescopic rod 28, the ball nut pair 27 is engaged with the reciprocating screw 29, the ball nut pair 27 can be driven to move back and forth on the reciprocating screw 29 by the engagement of the ball nut pair 27 and the reciprocating screw 29, thereby driving the sliding block 24 to move on the scraper 10, scraping the residue on the scraper 10 and falling on the striker plate 26, and when the sliding block 24 moves to the highest point, discharging the residue on the striker plate 26 out of the feeding funnel 7;

here, by providing the telescopic rod 28, the slider 24 can be extended when moving upward along the scraper 10, thereby facilitating the slider 24 to move upward, and by the sliding connection of the positioning block 30 and the positioning block 31, the reciprocating screw 29 can move up and down stably.

Further, both sides all are provided with the bar groove 36 around the scraper blade 10, the slider 24 inboard is provided with the arch with bar groove 36 matched with, and protruding sliding connection can prevent through this structure that slider 24 and scraper blade 10 break away from mutually, and then keeps the steady movement of slider 24 on scraper blade 10 in the inside of bar groove 36.

Can carry out preliminary mixing before the material enters into runner 1 through this structure to improve the injection moulding effect in later stage, and after the end of moulding plastics, can clear up scraper blade 10 automatically, prevent that the residue from being detained on scraper blade 10, influence next use.

The working principle is as follows: the output end of the motor 21 drives the transmission shaft 22 to rotate, the belt 23 is driven to rotate through the belt wheel, the vertical shaft 8 and the loop bar 14 can be driven to rotate through the belt 23, the vertical shaft 8 rotates to drive the first spiral feeding plate 9 to rotate, materials are extruded into the feeding channel 4, the loop bar 14 rotates to drive the circular shaft 12 inside the loop bar to rotate, so as to drive the second spiral feeding plate 13 to rotate, in the process that the second spiral feeding plate 13 extrudes the materials to convey the materials to the runner 1, the materials form a reaction force on the second spiral feeding plate 13, so as to drive the second spiral feeding plate 13 to move upwards, the circular shaft 12 can be driven to move upwards through the second spiral feeding plate 13, the circular shaft 12 can overcome the upward movement of the first spring 20, and the like, when the materials are all extruded into the runner 1, the attack of the materials on the second spiral feeding plate 13 is forced to disappear, when the reaction force of the material to the second spiral feeding plate 13 disappears, the second spiral feeding plate 13 can be driven to move downwards under the action force of the first spring 20, the circular shaft 12 can be driven to move downwards, so that the circular shaft 12 drives the transverse plate 32 to move downwards, the transverse plate 32 can drive the supporting rod 33 to move downwards, the supporting rod 33 drives the sleeve ring 34 to move downwards against the action force of the second spring 35, the sleeve ring 34 can drive the reciprocating screw 29 to move downwards to be meshed with the ball nut pair 27, at the moment, the motor 21 continuously drives the vertical shaft 8 to rotate through the belt 23, the vertical shaft 8 drives the scraper 10 to rotate through the supporting rod 11, the scraper 10 drives the ball nut pair 27 to rotate through the telescopic rod 28, at the moment, the ball nut pair 27 is meshed with the reciprocating screw 29, the ball nut pair 27 can be driven to move back and forth on the reciprocating screw 29 through the meshing of the ball nut pair 27 and the reciprocating screw 29, thereby drive slider 24 and remove on scraper blade 10, can strike off the residue on scraper blade 10 and fall to striker plate 26 on, when slider 24 moved to the peak, can discharge feed hopper 7 with the residue on the striker plate 26.

Claims

1. The utility model provides a high accuracy numerical control injection molding machine, includes the runner, the runner top is provided with feed hopper, its characterized in that: rotate on the feed hopper inner wall and be provided with the scraper blade and be used for striking off the material that bonds on the feed hopper inner wall, the inside feedstock channel that is provided with of runner, the feedstock channel input is linked together with feed hopper, and feed hopper output intercommunication is provided with a transition section of thick bamboo, and the inside stirring subassembly that is provided with of a transition section of thick bamboo for mix the stirring to the inside raw materials of a transition section of thick bamboo that gets into, the feed hopper top is provided with and is used for driving scraper blade and stirring subassembly pivoted drive assembly.

2. A high precision numerically controlled injection molding machine according to claim 1, wherein: the feed passage output end communicates and is provided with the inlet pipe, the one end that feed passage was kept away from to the inlet pipe is linked together with a transition section of thick bamboo.

3. A high precision numerically controlled injection molding machine according to claim 1, wherein: the inside vertical shaft that is provided with that rotates of feed hopper, the first spiral delivery sheet of outside bottom fixedly connected with of vertical shaft, scraper blade bottom fixedly connected with bracing piece, scraper blade one end is kept away from to the bracing piece is fixed mutually with the vertical shaft.

4. A high precision numerically controlled injection molding machine according to claim 3, wherein: stirring subassembly includes the circle axle, circle off-axial side bottom fixedly connected with second spiral delivery sheet, circle off-axial side sliding connection has the loop bar, circle off-axial side fixedly connected with stopper, set up the spacing groove with stopper matched with on the loop bar inner wall, loop bar outside bottom fixedly connected with puddler, circle off-axial side fixedly connected with inner slide sleeve, loop bar outside bottom fixedly connected with outer sliding sleeve, inner slide sleeve set up in outer sliding sleeve inboard and with outer sliding sleeve sliding connection, be provided with first spring between outer sliding sleeve and the inner slide sleeve, the loop bar runs through a transition section of thick bamboo and is connected with a transition section of thick bamboo rotation.

5. A high precision numerically controlled injection molding machine according to claim 4, wherein: the transmission assembly comprises a motor, a transmission shaft is arranged at the output end of the motor, belt wheels are fixedly connected to the outer sides of the vertical shaft, the loop bar and the transmission shaft, and a belt is arranged on the outer sides of the belt wheels in a transmission mode.

6. A high precision numerically controlled injection molding machine according to claim 4, wherein: the scraper blade outside is provided with the clearance subassembly, the clearance subassembly is including setting up the slider in the scraper blade outside.

7. A high precision numerically controlled injection molding machine according to claim 6, wherein: both sides all are provided with the bar groove around the scraper blade, the slider inboard is provided with bar groove matched with arch, protruding sliding connection in bar inslot portion.

8. A high precision numerically controlled injection molding machine according to claim 6, wherein: the clearance subassembly is still including setting up in the dog of scraper blade outside bottom, and both sides are all fixed to be provided with the striker plate around the slider, and vertical axis outside bottom mounting is provided with ball nut pair, and fixedly connected with telescopic link between ball nut pair and the slider, the fixed reciprocal lead screw that is provided with and meshes with ball nut pair in the vertical axis outside can drive ball nut pair 27 round trip movement on reciprocal lead screw 29 through the meshing of ball nut pair 27 and reciprocal lead screw 29 to drive slider 24 and remove on scraper blade 10.

9. A high precision numerically controlled injection molding machine according to claim 8, wherein: the feed hopper top is provided with the support, support fixed connection is in the runner top, reciprocal lead screw run through the support and with support sliding connection, reciprocal lead screw outside fixedly connected with locating piece, the fixed locating plate that is provided with in reciprocal lead screw outside top, locating plate and support fixed connection, the locating plate is close to reciprocal lead screw one side and is provided with the constant head tank, locating piece and constant head tank sliding connection.

10. A high precision numerically controlled injection molding machine as defined in claim 9, wherein: the improved reciprocating screw rod support is characterized in that a transverse plate is arranged at the top of the support, the outer side of the circular shaft is fixedly connected with the transverse plate, supporting rods are fixedly connected to two sides of the bottom of the transverse plate and penetrate through the support and are connected with the support in a sliding mode, a lantern ring is fixedly connected to the outer side of the reciprocating screw rod, the bottom end of each supporting rod is fixedly connected with the lantern ring, a second spring is arranged between the lantern ring and the support, and the second spring is arranged on the outer side of the reciprocating screw rod.