CN213006380U

CN213006380U - Screw rod for injection molding machine

Info

Publication number: CN213006380U
Application number: CN202021552322.4U
Authority: CN
Inventors: 钱波
Original assignee: Huaying Shenda Optical Technology Co ltd
Current assignee: Huaying Shenda Optical Technology Co ltd
Priority date: 2020-07-30
Filing date: 2020-07-30
Publication date: 2021-04-20
Anticipated expiration: 2030-07-30

Abstract

The utility model relates to an injection molding machine technical field especially relates to a screw rod for injection molding machine, has solved that the screw rod of moulding plastics that has now among the prior art has plastify sufficiency, homogeneity not enough, and there are a lot of impurities in the material simultaneously to it is unsatisfactory to lead to moulding plastics the screw rod effect of moulding plastics, and the not long problem of screw rod life prevents the material simultaneously and flows back also insufficient problem. The utility model provides a screw rod for injection molding machine, includes the base, and the base top is equipped with the guard box, and one side fixedly connected with backup pad of guard box, backup pad top are equipped with the loading board, and the bottom fixedly connected with second slider of loading board, and sliding connection between second slider passes through second slide rail and backup pad top. The utility model discloses in the mode of proposing, not only effectively got rid of the impurity in the plastics, and then made the screw rod mould plastics more thoroughly, and utilized the effect of preventing the reverse flow board to avoid the phenomenon of plastics liquid backward flow, improved the effect that the screw rod was moulded plastics.

Description

Screw rod for injection molding machine

Technical Field

The utility model relates to an injection molding machine technical field especially relates to a screw rod for injection molding machine.

Background

The screw is an important part of the injection molding machine, and the functions of the screw are that the plastic is conveyed, compacted, melted, stirred and pressed by the rotation of the screw in the cylinder, when the screw rotates, the plastic generates friction and mutual movement on the inner wall of the cylinder, the bottom surface of the screw groove, the screw ridge propelling surface and the plastic, and the plastic are an indispensable part of the same screw in the production process of the reading pen lens.

The existing injection molding screw has insufficient plasticizing sufficiency and uniformity, and a plurality of impurities exist in some materials, so that the injection molding screw is unsatisfactory in injection molding effect, and the service life of the screw is not long, and the material backflow is prevented.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a screw rod for injection molding machine has solved the screw rod of moulding plastics that has had among the prior art now and has had plastify sufficiency, homogeneity not enough, and there are a lot of impurity in the material simultaneously to it is unsatisfactory to lead to the screw rod effect of moulding plastics, and screw rod life is not long problem, prevents the material reflux also insufficient problem simultaneously.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a screw for an injection molding machine comprises a base, a protective box is arranged at the top of the base, a supporting plate is fixedly connected to one side of the protective box, a bearing plate is arranged at the top of the supporting plate, a second sliding block is fixedly connected to the bottom of the bearing plate, the second sliding block is connected with the top of the supporting plate in a sliding way through a second sliding rail, the heat preservation box is sleeved outside the protection box, the bottom of the heat preservation box is fixedly connected with the top of the base, a screw rod is arranged in the inner cavity of the protection box, one end of the screw rod is fixedly connected with an anti-backflow plate, the other end of the screw rod penetrates through the side wall of the protection box through a bearing sleeve, the extension end of the screw rod is in transmission connection with an output shaft of the driving motor, one side of the protection box, which is far away from the driving motor, is communicated with a discharge pipe, a first valve is arranged on the discharge pipe, one end of the screw rod, which is close to the anti-backflow plate, is sleeved with an extrusion plug, and the extrusion plug is positioned on one side of the anti-backflow plate far away from the discharge pipe, and one side of the top of the protection box close to the driving motor is communicated with a feed pipe.

Preferably, prevent that inside a plurality of extrusion groove has been seted up to the anti-flow back plate, extrude inslot inner wall both sides and all be connected with the baffle through the rotation of torsional spring pivot, and the one end that torsional spring pivot was kept away from to two baffles is laminated each other.

Preferably, one side fixedly connected with electric telescopic handle, the guard box is kept away from at the backup pad top, fixed connection between electric telescopic handle's one end and the lateral wall of backup pad.

Preferably, the top intercommunication of inlet pipe has the feeding case, and fixed connection between support column and the protection box top is passed through to the bottom of feeding case, installs the second valve on the inlet pipe.

Preferably, be equipped with the filter in the inner chamber of feeding case, the equal first slider of fixedly connected with in both sides of filter, sliding connection between the inner wall of two first sliders all through first slide rail and feeding case.

Preferably, a heating coil is wound and connected on the part of the protection box positioned in the inner cavity of the incubator.

Preferably, the second sliding block is in clearance fit with the second sliding rail.

The utility model discloses possess following beneficial effect at least:

when a screw rod in the injection molding machine works, firstly, plastic liquid generated by other parts of the injection molding machine is fed into a protective box through a feeding box for use in a screw rod working section, when the plastic liquid reaches a filter plate, impurities in the plastic liquid are filtered by utilizing the action of the filter plate, so that the plastic is stirred by the screw rod more uniformly and thoroughly, meanwhile, a driving motor is started to drive the screw rod to rotate, the plastic is conveyed forwards by the screw rod, meanwhile, the driving motor is driven by a bearing plate to horizontally advance under the driving of an electric telescopic rod, then, an extrusion plug can apply pressure on the plastic, the plastic is extruded out through an extrusion groove in an anti-backflow plate, meanwhile, the two baffles form the action of a one-way valve under the action of a torsional spring rotating shaft, the plastic liquid is prevented from flowing backwards, a heating coil further heats the plastic liquid, and the temperature of the plastic liquid is ensured, last plastics liquid is discharged through the discharging pipe for the use of next process in the injection molding machine, there is the plastify sufficiency for the screw rod of moulding plastics that has now among the prior art, the homogeneity is not enough, and there are a lot of impurity in plastics simultaneously, thereby it is unsatisfactory to lead to moulding plastics the screw rod effect of moulding plastics, the not long problem of screw rod life, prevents the also insufficient problem of material backward flow simultaneously, the utility model discloses well proposed mode has not only effectively got rid of the impurity in the plastics, and then makes the screw rod mould plastics more thoroughly, and utilizes the effect of preventing the reverse flow board to avoid the phenomenon of plastics liquid backward flow, has improved the effect that the screw rod was moulded plastics.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without any creative effort.

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

FIG. 2 is a side view of the protection box of the present invention;

FIG. 3 is an enlarged view of area A of the present invention;

fig. 4 is a view showing the overall appearance and the structure inside the incubator according to the present invention.

In the figure: 1. a protection box; 2. a heat preservation box; 3. a screw; 4. extruding the plug; 5. a reverse flow prevention plate; 6. a discharge pipe; 7. a first valve; 8. a heating coil; 9. a feeding box; 10. a filter plate; 11. a first slider; 12. a first slide rail; 13. a second valve; 14. a feed pipe; 15. a drive motor; 16. an electric telescopic rod; 17. a support plate; 18. a carrier plate; 19. a second slider; 20. a second slide rail; 21. a baffle plate; 22. an extrusion groove; 23. a support pillar; 24. a base.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1-4, a screw for an injection molding machine comprises a base 24, a protection box 1 is arranged on the top of the base 24, a supporting plate 17 is fixedly connected to one side of the protection box 1, a bearing plate 18 is arranged on the top of the supporting plate 17, a second slider 19 is fixedly connected to the bottom of the bearing plate 18, the second slider 19 is slidably connected to the top of the supporting plate 17 through a second slide rail 20, a thermal insulation box 2 is sleeved outside the protection box 1, the bottom of the thermal insulation box 2 is fixedly connected to the top of the base 24, a screw 3 is arranged in an inner cavity of the protection box 1, one end of the screw 3 is fixedly connected to an anti-backflow plate 5, the other end of the screw 3 penetrates through the side wall of the protection box 1 through a bearing sleeve, the extending end of the screw 3 is in transmission connection with an output shaft of a driving motor 15, a discharge pipe 6 is communicated with one side of the protection box 1 far away from the driving, and extrude the stopper 4 and be located the one side that prevents that the anti-board 5 of backflowing kept away from discharging pipe 6, one side intercommunication that the guard box 1 top is close to driving motor 15 has inlet pipe 14, and is concrete, utilizes and extrudes stopper 4 and carries out the extrusion work of moulding material liquid under the drive of screw rod 3, utilizes the effect of preventing the anti-board 5 of backflowing to prevent the phenomenon of moulding material liquid refluence simultaneously, has improved the effect of moulding plastics, has very high economical and practical.

The scheme has the following working processes:

when a screw 3 in an injection molding machine works, firstly, plastic liquid generated by other parts of the injection molding machine is fed into a protective box 1 through a feeding pipe 14 for using a working section of the screw 3, meanwhile, a driving motor 15 is started to drive the screw 3 to rotate, then the screw 3 conveys the plastic forwards, as a bearing plate 18 utilizes the sliding effect of a second sliding block 19 in a second sliding rail 20, the parallel propelling effect of the driving motor 15 can be realized, meanwhile, the screw 3 is propelled forwards, further, the screw 3 drives an extrusion plug 4 to propel forwards, and the plastic liquid is extruded out through an anti-backflow plate 5 for using the next working section.

According to the working process, the following steps are known:

the extrusion plug 4 is driven by the screw rod 3 to extrude the plastic liquid, and the backflow phenomenon of the plastic liquid is prevented by the function of the backflow preventing plate 5, so that the injection molding effect is improved.

Further, prevent that inside a plurality of extrusion groove 22 has been seted up to anti-flow back plate 5, extrude groove 22 inner wall both sides and all be connected with baffle 21 through the rotation of torsional spring pivot, and two baffles 21 keep away from the one end of torsional spring pivot and laminate each other, and is concrete, utilize two baffles 21 and torsional spring pivot and then form the effect of a check valve for prevent the plastics liquid backward flow in the guard box 1.

Further, one side fixedly connected with electric telescopic handle 16 of guard box 1 is kept away from at the backup pad 17 top, and fixed connection between the one end of electric telescopic handle 16 and the lateral wall of backup pad 17 is concrete, utilizes electric telescopic handle 16's flexible effect, drives driving motor 15 horizontal migration through loading board 18, and then realizes screw rod 3's horizontal migration.

Further, the top of the feeding pipe 14 is communicated with the feeding box 9, the bottom of the feeding box 9 is fixedly connected with the top of the protection box 1 through a supporting column 23, the feeding pipe 14 is provided with a second valve 13, specifically, the second valve 13 is opened to enable the plastic liquid in the feeding box 9 to flow into the protection box 1, and meanwhile, the flowing rate of the plastic liquid can be adjusted by utilizing the second valve 13.

Further, be equipped with filter 10 in the inner chamber of feeding case 9, the first slider 11 of the equal fixedly connected with in both sides of filter 10, two first sliders 11 are all through sliding connection between first slide rail 12 and the inner wall of feeding case 9, and are concrete, utilize filter 10 to filter plastics liquid, have further strengthened the effect that screw rod 3 was moulded plastics.

Further, a heating coil 8 is wound on the part of the protection box 1 in the inner cavity of the insulation box 2, and specifically, the heating coil 8 is used for preventing the temperature of the plastic liquid in the protection box 1 from being reduced, thereby preventing the problem of influence on the injection molding quality.

Further, the second slider 19 is in clearance fit with the second slide rail 20.

In conclusion, the effect of a one-way valve is further formed by the two baffles 21 and the torsion spring rotating shaft to prevent plastic liquid in the protection box 1 from flowing back, the telescopic effect of the electric telescopic rod 16 is utilized, the bearing plate 18 drives the driving motor 15 to move horizontally, so that the screw 3 moves horizontally, the second valve 13 is opened to enable the plastic liquid in the feeding box 9 to flow into the protection box 1, meanwhile, the second valve 13 can be utilized to adjust the flowing speed of the plastic liquid, the plastic liquid is filtered by the filter plate 10, the injection molding effect of the screw 3 is further enhanced, and the effect of the heating coil 8 is utilized to prevent the temperature of the plastic liquid in the protection box 1 from being reduced, so that the injection molding quality is affected.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the principles of the present invention may be applied to any other embodiment without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A screw for an injection molding machine comprises a base (24) and is characterized in that a protection box (1) is arranged at the top of the base (24), a supporting plate (17) is fixedly connected to one side of the protection box (1), a bearing plate (18) is arranged at the top of the supporting plate (17), a second sliding block (19) is fixedly connected to the bottom of the bearing plate (18), the second sliding block (19) is in sliding connection with the top of the supporting plate (17) through a second sliding rail (20), an insulation box (2) is sleeved outside the protection box (1), the bottom of the insulation box (2) is fixedly connected with the top of the base (24), a screw (3) is arranged in an inner cavity of the protection box (1), an anti-backflow plate (5) is fixedly connected to one end of the screw (3), the other end of the screw (3) penetrates through the side wall of the protection box (1) through a bearing sleeve, and the extension end of the screw (3) is in transmission connection with, one side intercommunication that driving motor (15) were kept away from in guard box (1) has discharging pipe (6), install first valve (7) on discharging pipe (6), screw rod (3) are close to one of preventing that flow plate (5) serve and have cup jointed extrusion stopper (4), and extrusion stopper (4) are located one side that discharging pipe (6) were kept away from in preventing flow plate (5), one side intercommunication that driving motor (15) are close to in guard box (1) top has inlet pipe (14).

2. The screw rod for the injection molding machine according to claim 1, wherein a plurality of extrusion grooves (22) are formed in the anti-backflow plate (5), two sides of the inner wall of each extrusion groove (22) are rotatably connected with baffles (21) through torsion spring rotating shafts, and one ends of the two baffles (21) far away from the torsion spring rotating shafts are attached to each other.

3. Screw for injection molding machine according to claim 1, characterized in that the side of the top of the supporting plate (17) far from the protective box (1) is fixedly connected with an electric telescopic rod (16), and one end of the electric telescopic rod (16) is fixedly connected with the side wall of the supporting plate (17).

4. Screw rod for injection molding machine according to claim 1, characterized in that the top of feed pipe (14) is connected with feed box (9), the bottom of feed box (9) is fixed with the top of protection box (1) through support column (23), and second valve (13) is installed on feed pipe (14).

5. Screw according to claim 4, characterised in that a filter plate (10) is arranged in the inner cavity of the feed box (9), first sliding blocks (11) are fixedly connected to both sides of the filter plate (10), and both first sliding blocks (11) are slidably connected to the inner wall of the feed box (9) through first sliding rails (12).

6. Screw for an injection molding machine according to claim 1, characterised in that the heating coil (8) is wound around the part of the protective casing (1) located in the cavity of the insulation casing (2).

7. Screw for an injection molding machine according to claim 1, characterised in that the second slider (19) is clearance-fitted with the second slide (20).