CN211030983U

CN211030983U - Accurate quantitative feed arrangement of injection molding machine

Info

Publication number: CN211030983U
Application number: CN201921864194.4U
Authority: CN
Inventors: 黄新平
Original assignee: Hunan University of Technology
Current assignee: Hunan University of Technology
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-07-17
Anticipated expiration: 2029-11-01

Abstract

The utility model relates to an injection molding technical field just discloses an accurate quantitative feed arrangement of injection molding machine, including feeding device, sprue and discharge gate have been seted up on feeding device's the interior left wall respectively the inner wall fixedly connected with fixed plate of sprue, the side fixedly connected with elastic spring of fixed plate, one side fixedly connected with spheroid that fixed plate was kept away from to elastic spring, feeding device's inside sliding connection has the piston, the left side fixedly connected with movable rod of piston. Through the cooperation between crank, connecting rod and the movable rod use, make rotary motion convert linear motion to reached the control movable rod, the effect of feeding and the ejection of compact is used through the cooperation between piston, elastic spring and the spheroid, when making the piston move left, during the raw materials got into the piston cavity from the sprue, when the piston moved right, raw materials in the piston flowed from the discharge gate, thereby realized the effect of the feeding volume of control raw materials.

Description

Accurate quantitative feed arrangement of injection molding machine

Technical Field

The utility model relates to a technical field of moulding plastics specifically is an accurate quantitative feed arrangement of injection molding machine.

Background

Injection molding is a method for producing and molding industrial products. The products are generally produced by rubber injection molding and plastic injection molding.

The traditional injection molding machine generally adopts a spiral continuous feeding structure, the continuous feeding cannot control the feeding amount, when the material storage at the end part of a machine barrel is excessive, the screw rod consumes extra injection pressure to compress and push the excessive material storage in the machine barrel during injection, so that the effective injection pressure of the plastic entering a mold cavity is greatly reduced, a product is difficult to fill, when the material storage at the end part of the machine barrel is insufficient, the local filling of an injection molding part is uneven due to insufficient raw materials, and the quality of the injection molding part is influenced.

Disclosure of Invention

Technical problem to be solved

Not enough to prior art, the utility model provides an accurate ration feed arrangement of injection molding machine possesses the reinforced advantage of accurate ration, has solved the problem that the feed volume can not accurate control.

Technical scheme

For realizing the reinforced purpose of above-mentioned accurate ration, the utility model provides a following technical scheme: an accurate quantitative feeding device of an injection molding machine comprises a feeding device, wherein a feeding port and a discharging port are respectively arranged on the inner left wall of the feeding device, a fixed plate is fixedly connected to the inner wall of the feeding port, an elastic spring is fixedly connected to the side surface of the fixed plate, one side of the elastic spring, which is far away from the fixed plate, is fixedly connected with a ball body, a piston is slidably connected to the inside of the feeding device, a movable rod is fixedly connected to the left side of the piston, a fixed sleeve is slidably connected to the outer side of the movable rod, an adjusting block is arranged on the outer side of the movable rod and positioned on the right side of the fixed sleeve, an adjusting rod is movably connected to the top of the adjusting block, a rotary disc is fixedly connected to the top of the adjusting rod, a connecting shaft is movably, the inside swing joint of adapter sleeve has the crank, both ends swing joint has the fixed block about the crank.

Preferably, the outer side of the movable rod is provided with an adjusting groove, so that the movable rod can be adjusted and fixed conveniently.

Preferably, the top of regulating block is seted up threaded hole, the rectangular channel is seted up to the bottom of regulating block, the swing joint between connecting rod and the regulating block of being convenient for.

Preferably, the injection port and the discharge port have the same composition structure but are opposite in installation position, so that the purposes of controlling feeding and discharging are achieved.

Preferably, the inner hole diameter of the left end of the injection port is larger than that of the right end of the injection port, so that the ball can control the feeding of the injection port.

Preferably, the outer side of the fixing plate is provided with a through hole, so that raw materials can pass through the fixing plate.

Preferably, the crank is of a U-shaped structure and drives the connecting rod to move.

Advantageous effects

Compared with the prior art, the utility model provides an accurate quantitative feed arrangement of injection molding machine possesses following beneficial effect:

1. this accurate quantitative feed arrangement of injection molding machine, through the crank, cooperation between connecting rod and the movable rod is used, make rotary motion convert linear motion to, thereby reached the control movable rod, the effect of feeding and the ejection of compact, through the piston, cooperation between elastic spring and the spheroid is used, when making the piston move left, the raw materials gets into the piston cavity from the sprue, when the piston moves right, the raw materials in the piston flows from the discharge gate, thereby the effect of the feeding volume of control raw materials has been realized.

2. This accurate quantitative feed arrangement of injection molding machine uses through the cooperation between adjusting pole, regulating block and the movable rod, and when the quality of feeding was adjusted to needs, through rotating the carousel on the regulating block, makes the carousel drive the regulation pole and rotate, adjusts the position between movable rod and the regulating block, carries out the stroke of circulating reciprocating motion about the movable rod through the change, adjusts the quality of feeding in the cavity. Thereby achieving the effect of accurately changing the feeding amount.

Drawings

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

FIG. 2 is a schematic structural view of the injection port and the discharge port of the present invention;

FIG. 3 is a schematic view of the structure of the adjusting block of the present invention;

fig. 4 is a schematic view of the crank structure of the present invention.

In the figure: the device comprises a feeding device 1, a feeding port 2, a discharging port 3, a piston 4, a movable rod 5, a fixed sleeve 6, an adjusting block 7, an adjusting rod 8, a turntable 9, a connecting rod 10, a crank 11, a fixed block 12, a connecting sleeve 13, a connecting shaft 14, a fixed plate 15, an elastic spring 16 and a sphere 17.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, an accurate quantitative feeding device for an injection molding machine comprises a feeding device 1, wherein the inner left wall of the feeding device 1 is respectively provided with a feeding port 2 and a discharging port 3, the feeding port 2 and the discharging port 3 have the same composition structure, but are installed at opposite positions, so that the purpose of controlling feeding and discharging is achieved. The hole diameter in the left end of sprue 2 is greater than the hole diameter in the right side, the control sprue 2's that makes spheroid 17 can the feeding. The inner left wall of the injection port 2 is fixedly connected with a fixing plate 15, and the outer side of the fixing plate 15 is provided with a through hole, so that raw materials can pass through the fixing plate 15. The right side fixedly connected with elastic spring 16 of fixed plate 15, elastic spring 16's right side fixedly connected with spheroid 17, the inside sliding connection of feeding device 1 has piston 4, piston 4's left side fixedly connected with movable rod 5, and the adjustment tank has been seted up in the outside of movable rod 5, is convenient for adjust pole 7 and adjusts and fix movable rod 5. The outside sliding connection of movable rod 5 has fixed cover 6, and the regulating block 7 is installed on the outside of movable rod 5 and the right side that is located fixed cover 6, and the threaded hole has been seted up at the top of regulating block 7, and the rectangular channel has been seted up to the bottom of regulating block 7, the swing joint between connecting rod 10 and the regulating block 7 of being convenient for. The top swing joint of regulating block 7 has regulation pole 8, uses through the cooperation between regulation pole 8, regulating block 7 and the movable rod 5, and when the quality of feeding was adjusted to needs, through rotating carousel 9 on the regulating block 7, makes carousel 9 drive adjust the pole 8 and rotate, adjusts the position between movable rod 5 and the regulating block 7, carries out the stroke of circulating reciprocating motion about movable rod 5 through the change, adjusts the quality of feeding in the cavity. Thereby achieving the effect of accurately changing the feeding amount. Adjust the top fixedly connected with carousel 9 of pole 8, through connecting axle 14 swing joint between the inner wall of regulating block 7 and the connecting rod 10, the left end fixedly connected with adapter sleeve 13 of connecting rod 10, the inside swing joint of adapter sleeve 13 has crank 11, and crank 11 is the U type structure, drives the activity of connecting rod 10. Through crank 11, the cooperation between connecting rod 10 and the movable rod 5 is used, make rotary motion convert linear motion to, thereby reached control movable rod 5, the effect of feeding and the ejection of compact, use through the cooperation between piston 4, elastic spring 16 and the spheroid 17, when making piston 4 move left, the raw materials gets into piston 4 cavity from sprue 2, when piston 4 moved right, the raw materials in the piston 4 flowed from discharge gate 3, thereby the effect of the feeding volume of control raw materials has been realized. The left end and the right end of the crank 11 are movably connected with fixing blocks 12.

The working principle is that in the feeding process, the crank 11 rotates to drive the connecting sleeve 13 to rotate, the connecting sleeve 13 drives the connecting rod 10 to move, the connecting rod 10 drives the adjusting block 7 to move, the adjusting block 7 is fixed on the movable rod 5 and drives the movable rod 5 to reciprocate left and right, the purposes of feeding and discharging are realized through the left and right circular reciprocating motion of the piston 4 on the right side of the movable rod 5, when the piston 4 moves left, the inner cavity of the feeding device 1 is in a low-pressure state, so that the raw materials in the material injection port 2 and the material discharge port 3 have a tendency of flowing into the inner cavity of the feeding device 1, the raw materials in the material discharge port 3 flow left, the ball 17 in the material discharge port 3 is driven to move left, the channel between the material discharge port 3 and the inner cavity of the feeding device 1 is disconnected, the raw materials in the material discharge port 3 are prevented from flowing left, the cavity of the whole feeding device 1 is filled with the raw materials, the stroke of the piston 4 is fixed, so the quality of the raw materials contained in the cavity is unchanged, thereby the accurate control of the input amount of the raw materials is realized, after the piston 4 moves leftwards to the maximum stroke, the piston 4 moves leftwards to extrude the raw materials in the cavity, so that the hydraulic pressure in the cavity is increased, the ball 17 in the injection port 2 is pushed to move rightwards and disconnect the channel between the cavity and the injection port 2, meanwhile, the ball 17 in the discharge port 3 is pushed to move rightwards so that the channel between the cavity and the discharge port 3 is opened, at the moment, the piston 4 pushes the raw materials in the cavity to flow out from the discharge port 3, the accurate control of the input amount is realized, when the input quality needs to be adjusted, the turntable 9 on the adjusting block 7 can be rotated, the turntable 9 drives the adjusting rod 8 to rotate, the position between the movable rod 5 and the adjusting block 7 is adjusted, the quality of the feed in the cavity is adjusted.

To sum up, this accurate ration feed arrangement of injection molding machine, through crank 11, cooperation between connecting rod 10 and the movable rod 5 is used, make rotary motion convert linear motion, thereby reached control movable rod 5, the effect of feeding and ejection of compact, through piston 4, cooperation between elastic spring 16 and the spheroid 17 is used, when making piston 4 remove left, the raw materials gets into in the piston 4 cavity from sprue 2, when piston 4 removes right, the raw materials in the piston 4 flow out from discharge gate 3, thereby the effect of the feeding volume of control raw materials has been realized.

In addition, the accurate quantitative feeding device of the injection molding machine is used by matching the adjusting rod 8, the adjusting block 7 and the movable rod 5, when the feeding quality needs to be adjusted, the turntable 9 on the adjusting block 7 is rotated to enable the turntable 9 to drive the adjusting rod 8 to rotate, the position between the movable rod 5 and the adjusting block 7 is adjusted, and the feeding quality in the cavity is adjusted by changing the stroke of the movable rod 5 which performs left-right circular reciprocating motion. Thereby achieving the effect of accurately changing the feeding amount.

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

Claims

1. The utility model provides an accurate quantitative feed arrangement of injection molding machine, includes feeding device (1), its characterized in that: the feeding device is characterized in that a feeding port (2) and a discharging port (3) are respectively formed in the inner left wall of the feeding device (1), a fixing plate (15) is fixedly connected to the inner wall of the feeding port (2), an elastic spring (16) is fixedly connected to the side face of the fixing plate (15), one side of the elastic spring (16) far away from the fixing plate (15) is fixedly connected with a ball (17), a piston (4) is slidably connected to the inside of the feeding device (1), a movable rod (5) is fixedly connected to the left side of the piston (4), a fixing sleeve (6) is slidably connected to the outer side of the movable rod (5), an adjusting block (7) is installed on the right side of the fixing sleeve (6) and located on the outer side of the movable rod (5), an adjusting rod (8) is movably connected to the top of the adjusting block (7), a connecting shaft (9) is fixedly connected to the top of the adjusting rod, the outer side of the connecting shaft (14) is movably connected with a connecting rod (10), the left end of the connecting rod (10) is fixedly connected with a connecting sleeve (13), the inside of the connecting sleeve (13) is movably connected with a crank (11), and the front end and the rear end of the crank (11) are movably connected with fixing blocks (12).

2. The accurate quantitative feeding device of an injection molding machine according to claim 1, characterized in that: the outer side of the movable rod (5) is provided with an adjusting groove.

3. The accurate quantitative feeding device of an injection molding machine according to claim 1, characterized in that: the top of the adjusting block (7) is provided with a threaded hole, and the bottom of the adjusting block (7) is provided with a rectangular groove.

4. The accurate quantitative feeding device of an injection molding machine according to claim 1, characterized in that: the injection port (2) and the discharge port (3) are formed by a fixing plate (15), an elastic spring (16) and a ball body (17).

5. The accurate quantitative feeding device of an injection molding machine according to claim 1, characterized in that: the inner hole diameter of the left end of the injection port (2) is larger than that of the right end.

6. The accurate quantitative feeding device of an injection molding machine according to claim 1, characterized in that: the outer side of the fixing plate (15) is provided with a through hole.

7. The accurate quantitative feeding device of an injection molding machine according to claim 1, characterized in that: the crank (11) is of a U-shaped structure.