CN213441071U

CN213441071U - Central female screw rod for extruder

Info

Publication number: CN213441071U
Application number: CN202021990273.2U
Authority: CN
Inventors: 王兵
Original assignee: Wuhan Plastic Screw Manufacturing Co ltd
Current assignee: Wuhan Plastic Screw Manufacturing Co ltd
Priority date: 2020-09-11
Filing date: 2020-09-11
Publication date: 2021-06-15
Anticipated expiration: 2030-09-11

Abstract

The utility model relates to a female screw rod in center for extruder, including the screw rod body, the inside gomphosis of screw rod body is connected with the core screw rod, and the first involute spline of one side fixedly connected with of screw rod body, one side swing joint of first involute spline has into oil pipe, and advances oil pipe and pass and be connected for the gomphosis between the inside of first involute spline and core screw rod, docking mechanism is installed to one side of screw rod body. The utility model discloses a this screw rod is the female screw rod in the center of plasticizing device, the first involute spline in screw rod right side links to each other with the blevile of push of extruder, the transmission moment of torsion, the screw rod outside has the meshing of many son screw rod teeth in a plurality of helical teeth and the plasticizing device, screw rod center design toper hollow structure, inside is equipped with the toper core, core surface spiral shell arris plays high temperature oil and flows at the surperficial spiral when advancing the oil pipe and annotating, reach better for the female screw rod heating of center makes the PVC raw materials plastify completely, make good goods.

Description

Central female screw rod for extruder

Technical Field

The utility model relates to a central female screw rod for extruder belongs to extruder technical field.

Background

The extruder belongs to one of the types of plastic machinery, can divide the aircraft nose into right angle aircraft nose and bevel nose etc. according to aircraft nose material flow direction and the contained angle of screw rod central line, and the screw extruder relies on pressure and the shearing force that the screw rod rotation produced, can make the material fully carry out plastify and evenly mix, through the bush shaping.

The existing central female screw is generally butted and used with a material pushing device in the using process, the central female screw and the material pushing device are butted by the same model, the central female screw and the material pushing device cannot be butted with different models, the practicability is poor, the central female screw is sealed on the surface, the central female screw cannot be cleaned of a core screw and an oil inlet pipe inside the central female screw, the central female screw cannot be cleaned for a long time, and the working efficiency of the whole equipment is influenced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses the technical problem who solves overcomes current defect, provides a female screw rod in center for extruder, the utility model discloses simple structure, convenient to use can effectively dock the blevile of push of different models with female screw rod in center, and also be convenient for clear up the inside core screw rod of female screw rod in center and advance oil pipe, can effectively solve the problem in the background art.

In order to solve the technical problem, the utility model provides a following technical scheme:

a central female screw for an extruder comprises a screw body, wherein a core screw is connected to the interior of the screw body in an embedded manner, a first involute spline is fixedly connected to one side of the screw body, an oil inlet pipe is movably connected to one side of the first involute spline and penetrates through the first involute spline to be connected with the interior of the core screw in an embedded manner, a docking mechanism is installed on one side of the screw body, a second involute spline is arranged in the docking mechanism, two docking grooves are connected to one side of the second involute spline in an embedded manner, through grooves are respectively formed in the upper end and the lower end of one side of the screw body, a sleeve rod is movably connected to the bottom end of the interior of each through groove, a docking block is fixedly connected to one side of the sleeve rod, the docking block is connected with the interior of each docking groove in a clamping manner, a sleeve is fixedly connected to the top end of the sleeve rod, and a reset spring is, and the top fixedly connected with T type pole of reset spring, a plurality of through-holes have been seted up respectively to the upper and lower end of screw rod body, and be swing joint between the surface of through-hole and T type pole, the T type pole passes through to constitute the block structure between through-hole and the screw rod body, and the surface mounting of screw rod body has disassembly body.

Furthermore, the loop bar forms a clamping structure through the butt joint block and the butt joint groove, and the second involute spline is connected with the bracket on one side of the screw body in a relative mode.

Furthermore, the T-shaped rod forms an elastic telescopic structure with the sleeve through the return spring, and the through grooves are symmetrical about the central axis of the screw body.

Further, the inside of disassembly body is including last screw rod, and one side gomphosis of going up the screw rod is connected with first spacing groove, the bottom swing joint of going up the screw rod has lower screw rod, and one side of lower screw rod sets up flutedly, the inside fixedly connected with connecting rod of recess, and the surperficial swing joint of connecting rod has the connecting plate, the first stopper of one side fixedly connected with of connecting plate, and be connected for the block between the inside of first stopper and first spacing groove, the top one side fixedly connected with second stopper of going up the screw rod, top one side gomphosis of lower screw rod is connected with the second spacing groove, and is the card and is connected between the surface of second spacing groove and second stopper.

Furthermore, the connecting plate forms a clamping structure through the first limiting block and the first limiting groove, and the connecting plate forms a rotating structure through the connecting rod and the groove.

Furthermore, the upper screw rod and the second limiting groove form a clamping structure through the second limiting block, and the cross sectional areas of the upper screw rod and the lower screw rod are the same.

The utility model discloses a technological effect and advantage:

1. the utility model discloses a this screw rod is the female screw rod in the center of plasticizing device, the first involute spline in screw rod right side links to each other with the blevile of push of extruder, the transmission moment of torsion, the screw rod outside has the meshing of many son screw rod teeth in a plurality of helical teeth and the plasticizing device, screw rod center design toper hollow structure, inside is equipped with the toper core, core surface spiral shell arris plays high temperature oil and flows at the surperficial spiral when advancing the oil pipe and annotating, reach better for the female screw rod heating of center makes the PVC raw materials plastify completely, make good goods.

2. The utility model discloses a docking mechanism has been set up, through the butt joint piece on the loop bar and the effect of the butt joint groove on the second involute spline, can make loop bar and the second involute spline of difference realize the butt joint, through pressing T type pole to the inside in logical groove, can make the loop bar remove, just the second involute spline that loop bar one side is connected removes, is convenient for dock second involute spline and blevile of push, makes the practicality of central female screw rod stronger.

3. The utility model discloses a set up disassembly body, rotated on the connecting rod through the connecting plate, can remove the inside of the first spacing groove on the upper screw rod with first spacing block on the connecting plate, be connected through the second spacing groove with second stopper on the upper screw rod on with lower screw rod, be convenient for install upper screw rod and lower screw rod and dismantle, be convenient for clear up its inside core screw rod and advance oil pipe.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

Fig. 1 is a front view of the present invention;

fig. 2 is a schematic structural diagram of the docking mechanism of the present invention;

FIG. 3 is an enlarged schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic structural view of the detaching mechanism of the present invention;

fig. 5 is a schematic structural view of the upper screw rod and the lower screw rod of the present invention.

Reference numbers in the figures: 1. a screw body; 2. a core screw; 3. a first involute spline; 4. an oil inlet pipe; 5. a docking mechanism; 501. a second involute spline; 502. a butt joint groove; 503. a through groove; 504. a loop bar; 505. a butt joint block; 506. a sleeve; 507. a return spring; 508. a T-shaped rod; 509. a through hole; 6. a disassembly mechanism; 601. an upper screw rod; 602. a first limit groove; 603. a lower screw rod; 604. a groove; 605. a connecting rod; 606. a connecting plate; 607. a first stopper; 608. a second limiting block; 609. a second limit groove.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

As shown in fig. 1 to 5, a central female screw for an extruder comprises a screw body 1, a core screw 2 is embedded and connected inside the screw body 1, a first involute spline 3 is fixedly connected to one side of the screw body 1, an oil inlet pipe 4 is movably connected to one side of the first involute spline 3, the oil inlet pipe 4 penetrates through the first involute spline 3 and is in embedded connection with the inside of the core screw 2, a docking mechanism 5 is installed at one side of the screw body 1, the docking mechanism 5 comprises a second involute spline 501 inside, two docking slots 502 are embedded and connected to one side of the second involute spline 501, through grooves 503 are respectively formed at the upper end and the lower end of one side of the screw body 1, a loop bar 504 is movably connected to the bottom end of the inside of the through grooves, a docking block 505 is fixedly connected to one side of the loop bar 504, and the docking block 505 is in clamping connection with the inside of the docking slots 502, the top end of the sleeve rod 504 is fixedly connected with a sleeve 506, the interior of the sleeve 506 is fixedly connected with a return spring 507, the top end of the return spring 507 is fixedly connected with a T-shaped rod 508, the upper end and the lower end of the screw body 1 are respectively provided with a plurality of through holes 509, the through holes 509 are movably connected with the surface of the T-shaped rod 508, the T-shaped rod 508 forms a clamping structure with the screw body 1 through the through holes 509, the surface of the screw body 1 is provided with a dismounting mechanism 6, the sleeve rod 504 forms a clamping structure with the butt joint groove 502 through a butt joint block 505, the second involute spline 501 is oppositely connected with a bracket at one side of the screw body 1, the T-shaped rod 508 forms an elastic telescopic structure with the sleeve 506 through the return spring 507, the through grooves 503 are symmetrical about the central axis of the screw body 1, the butt joint block 505 connected with one side of the sleeve rod 504 is conveniently connected with different second involute splines, the different second involute splines 501 can be selected according to different pushing devices, butt joint between the second involute splines 501 and the pushing devices is facilitated, the reset springs 507 are convenient for ejecting the T-shaped rods 508 through the through holes 509, and the sleeve rods 504 can be fixed at a designated position conveniently.

As shown in fig. 4 and 5, the interior of the detaching mechanism 6 includes an upper screw 601, one side of the upper screw 601 is connected with a first limiting groove 602 in an embedded manner, the bottom end of the upper screw 601 is movably connected with a lower screw 603, one side of the lower screw 603 is provided with a groove 604, the interior of the groove 604 is fixedly connected with a connecting rod 605, the surface of the connecting rod 605 is movably connected with a connecting plate 606, one side of the connecting plate 606 is fixedly connected with a first limiting block 607, the first limiting block 607 is connected with the interior of the first limiting groove 602 in a clamping manner, one side of the top end of the upper screw 601 is fixedly connected with a second limiting block 608, one side of the top end of the lower screw 603 is connected with a second limiting groove 609 in an embedded manner, the surfaces of the second limiting groove 609 and the second limiting block 608 are connected in a clamping manner, the connecting plate 606 forms a clamping structure with the first limiting groove 602 through the first limiting block 607, and the connecting, the upper screw 601 forms a clamping structure through the second limiting block 608 and the second limiting groove 609, the cross sectional areas of the upper screw 601 and the lower screw 603 are the same, the upper screw 601 and the lower screw 603 are combined to form the screw body 1, the upper screw 601 is connected with the second limiting groove 609 on the lower screw 603 through the second limiting block 608 on the upper screw 601, and the upper screw 601 and the lower screw 603 are movably connected through the connecting plate 606 and the connecting rod 605, so that the connecting plate 606 can be conveniently rotated, the first limiting block 607 on the connecting plate 606 can be moved into the first limiting groove 602, the upper screw 601 and the lower screw 603 can be conveniently assembled, the connecting part of the upper screw 601 and the lower screw 603 is sealed by a sealing ring, and materials are prevented from falling into the screw body 1 through gaps between the upper screw 601 and the lower screw.

For the convenience of understanding the technical solution of the present invention, the following detailed description is made on the working principle or the operation mode of the present invention in the practical process.

The utility model discloses the theory of operation: when in use, the connecting plate 606 rotates on the connecting rod 605, the first limiting block 607 on the connecting plate 606 can be moved into the first limiting groove 602 on the upper screw 601, the second limiting block 608 on the upper screw 601 is connected with the second limiting groove 609 on the lower screw 603, so that the upper screw 601 and the lower screw 603 can be conveniently installed and disassembled, the core screw 2 and the oil inlet pipe 4 in the upper screw can be conveniently cleaned, the sleeve rod 504 can be butted with different second involute splines 501 through the butting block 505 on the sleeve rod 504 and the butting groove 502 on the second involute splines 501, the sleeve rod 504 can be butted with different second involute splines 501 through the T-shaped rod 508 pressed into the through groove 503, the sleeve rod 504 can be moved, namely the second involute splines 501 connected with one side of the sleeve rod 504 can be moved, the second involute splines 501 can be butted with a material pushing device, and the practicability of the central female screw is stronger, this screw rod is the female screw rod in plasticizing device's center, the first involute spline 3 in screw rod right side links to each other with the blevile of push of extruder, the transmission moment of torsion, the screw rod outside has the meshing of many son screw rod teeth in a plurality of helical teeth and the plasticizing device, screw rod center design toper hollow structure, inside is equipped with the toper core, oil flows at the surperficial spiral when the core surface spiral helix arris plays high temperature oil and injects from advancing oil pipe 4, reach better for the female screw rod heating of center makes the PVC raw materials plastify completely, make good goods.

The above is the preferred embodiment of the present invention, and the technical personnel in the field of the present invention can also change and modify the above embodiment, therefore, the present invention is not limited to the above specific embodiment, and any obvious improvement, replacement or modification made by the technical personnel in the field on the basis of the present invention all belong to the protection scope of the present invention.

Claims

1. The utility model provides a central female screw rod for extruder, includes screw body (1), its characterized in that: the inner embedded type screw comprises a screw body (1), a core screw (2) is connected to the inner embedded type of the screw body (1), a first involute spline (3) is fixedly connected to one side of the screw body (1), an oil inlet pipe (4) is movably connected to one side of the first involute spline (3), the oil inlet pipe (4) penetrates through the first involute spline (3) to be embedded and connected with the inner portion of the core screw (2), a butt joint mechanism (5) is installed on one side of the screw body (1), a second involute spline (501) is arranged inside the butt joint mechanism (5), two butt joint grooves (502) are embedded and connected to one side of the second involute spline (501), through grooves (503) are respectively formed in the upper end and the lower end of one side of the screw body (1), a sleeve rod (504) is movably connected to the inner bottom end of the through grooves (503), a butt joint block (505) is fixedly connected to one side of, and butt joint piece (505) and butt joint between the inside of groove (502) for the block is connected, the top fixedly connected with sleeve (506) of loop bar (504), and the inside fixedly connected with reset spring (507) of sleeve (506), and the top fixedly connected with T type pole (508) of reset spring (507), a plurality of through-holes (509) have been seted up respectively to the upper and lower end of screw rod body (1), and be swing joint between the surface of through-hole (509) and T type pole (508), T type pole (508) pass through and constitute the block structure between through-hole (509) and screw rod body (1), and the surface mounting of screw rod body (1) has disassembly body (6).

2. The central female screw for extruders of claim 1, wherein: the sleeve rod (504) forms a clamping structure through the butt joint block (505) and the butt joint groove (502), and the second involute spline (501) is connected with the support on one side of the screw body (1) in an opposite mode.

3. The central female screw for extruders of claim 1, wherein: the T-shaped rod (508) and the sleeve (506) form an elastic telescopic structure through a return spring (507), and the through groove (503) is symmetrical about the central axis of the screw body (1).

4. The central female screw for extruders of claim 1, wherein: the interior of the disassembling mechanism (6) comprises an upper screw rod (601), one side of the upper screw rod (601) is embedded and connected with a first limit groove (602), the bottom end of the upper screw rod (601) is movably connected with a lower screw rod (603), one side of the lower screw rod (603) is provided with a groove (604), the inside of the groove (604) is fixedly connected with a connecting rod (605), the surface of the connecting rod (605) is movably connected with a connecting plate (606), one side of the connecting plate (606) is fixedly connected with a first limiting block (607), the first limit block (607) is connected with the inner part of the first limit groove (602) in a clamping way, one side of the top end of the upper screw rod (601) is fixedly connected with a second limiting block (608), one side of the top end of the lower screw (603) is embedded and connected with a second limit groove (609), and the second limit groove (609) is clamped and connected with the surface of the second limit block (608).

5. The central female screw for extruders according to claim 4, wherein: the connecting plate (606) forms a clamping structure with the first limiting groove (602) through the first limiting block (607), and the connecting plate (606) forms a rotating structure with the groove (604) through the connecting rod (605).

6. The central female screw for extruders according to claim 4, wherein: the upper screw (601) forms a clamping structure with the second limiting groove (609) through the second limiting block (608), and the cross sections of the upper screw (601) and the lower screw (603) are the same.