CN218906229U

CN218906229U - Screw extraction device for double screw extruder

Info

Publication number: CN218906229U
Application number: CN202223158476.7U
Authority: CN
Inventors: 桑干; 桑建亮; 吴嘉玉; 杨思; 桑硕
Original assignee: Hebei Sangsheng Polymer Materials Co ltd
Current assignee: Hebei Sangsheng Polymer Materials Co ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-04-25
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a screw extraction device for a double-screw extruder, which comprises a mounting box, wherein a first rotating shaft and a second rotating shaft are respectively and rotatably connected to the left side wall of the mounting box, an end connecting piece comprises a mounting frame with the bottom being a seal, a side end seat matched with the mounting frame is movably inserted into the mounting frame, an outer hole is formed in the mounting frame in a penetrating manner, an inner hole matched with the side wall of the side end seat is formed in the position corresponding to the outer hole, a locking mechanism is jointly inserted into the outer hole and the inner hole, and a rotary rod is connected to the side wall of the mounting frame. The application provides a screw extraction device for twin-screw extruder, this screw extraction device is convenient when using to be used for extracting and extruding the screw rod of material and dismouting and can carry out firm fixed processing to it when the installation screw rod, when making things convenient for the staff to dismantle the screw rod of damage and change the operation, can also firmly fix the screw rod of new change, guarantee twin-screw extruder's normal use.

Description

Screw extraction device for double screw extruder

Technical Field

The utility model relates to the technical field of stretching motion machines, and particularly discloses a screw extraction device for a double-screw extruder.

Background

The double-screw extruder is developed on the basis of a single-screw extruder, and has been widely applied to the molding processing of extruded products due to the characteristics of good feeding performance, mixing plasticizing performance, exhaust performance, extrusion stability and the like. When a twin-screw extruder is used for extrusion operation, if the hardness of the extruded material is high, the screw in the extruder is deformed and broken, so that the extruder cannot be used, and the screw needs to be replaced.

The chinese patent of application number CN202221154709.3 discloses a screw extraction device for twin-screw extruder, including the mounting box, the inside swing joint of mounting box has first pivot and second pivot, one side fixedly connected with mounting panel of first pivot, the equal fixedly connected with connecting plate in both ends of mounting panel one side, one side swing joint of connecting plate has the installation piece, one side fixedly connected with fixed plate of second pivot, the inside swing joint of fixed plate has the slide, one side fixedly connected with locating plate of slide.

The screw rod extraction device is difficult to realize firm fixation of the screw rod, and when the screw rod is replaced, the screw rod in the mounting hole is taken out, and the screw rod can be disassembled by rotating the screw rod upwards and out of the mounting block. Above-mentioned carry out the fixed mode of assembly through the screw to the tip of screw rod, be difficult to support the multiple assembly and disassembly operation of screw rod, however, the screw rod is as the wearing and tearing of twin-screw extruder's wearing and tearing need be dismantled regularly or change the operation, this just leads to the screw thread that is used for connecting the screw easily after multiple assembly and disassembly, wearing and tearing can be very serious, even a lot of screw threads can obviously become small, even become invalid, thereby make the tip of screw be difficult to firmly fix on the locating plate, when twin-screw extruder starts the during operation, the screw rod tip of fixing on the locating plate takes place to loosen easily, even directly drop from the locating plate, influence twin-screw extruder normal extrusion work.

Disclosure of Invention

In view of the above-mentioned defect or not enough among the prior art, this application aims at providing a screw extraction device for twin-screw extruder, including the mounting box, rotate respectively on the left side lateral wall of mounting box and be connected with pivot first and pivot second, and pivot first and pivot second are the front and back symmetry setting, the periphery of pivot first cup joints and is fixed with driving synchronous pulley, the periphery of pivot second cup joints and is fixed with driven synchronous pulley, driving synchronous pulley and driven synchronous pulley's periphery overlap jointly and are equipped with the hold-in range with the two cooperation work, fixedly connected with motor frame in the department corresponding to pivot one position on the lateral wall of mounting box, fixedly connected with servo motor in the motor frame, and servo motor's output shaft runs through the motor frame and is connected with the tip of pivot first, the inside of mounting box is equipped with first screw with pivot one position department corresponding, the inside of mounting box is equipped with the second screw with pivot position department corresponding, and second screw is parallel arrangement with first screw, the both ends of first screw and second screw all are equipped with end connection spare, end connection spare includes the bottom for sealing the hold-in range hood setting, inside movable plug has and is equipped with the inner hole with the mounting bracket that matches with its looks adaptation, the side of side wall has a hole with the joint hole in the side of the mounting bracket, the side wall has the joint hole with the side of the mounting bracket has the inner hole.

Preferably, both ends of the first screw are connected with edge end seats, and both ends of the second screw are connected with edge end seats;

the rotary rod positioned at the left side of the first screw rod penetrates through the mounting box and is connected with the end part of the first rotating shaft, and the rotary rod positioned at the right side of the first screw rod is rotationally connected to the inner wall of the mounting box;

the rotary rod positioned at the left side of the second screw rod penetrates through the mounting box and is connected with the end part of the second rotating shaft, and the rotary rod positioned at the right side of the first screw rod is also rotationally connected to the inner wall of the mounting box.

Preferably, the locking mechanical system is including inserting the inside screw thread body of rod of locating outer hole and hole, the external diameter size of screw thread body of rod is unanimous with the size of outer hole internal diameter, symmetrical connection has two direction draw-bars on the lateral wall of screw thread body of rod, the spacing slot rather than assorted is all offered to the inner wall of outer hole and two direction draw-bar positions corresponding department, and the activity of direction draw-bar is inserted and is established to the spacing slot that corresponds inside, an arc draw-in groove that is vertical arrangement has been offered to the top of screw thread body of rod lateral wall, the periphery cover of screw thread body of rod is equipped with the cardboard, fixedly connected with and the spacing fixture block of arc draw-in groove looks adaptation on the roof of cardboard, and the inside to the arc draw-in groove is inserted in the activity of establishing, the one end of screw thread body of rod is connected with spacing seat, threaded connection has the nut on the other end.

Preferably, the distance between one side of the limiting seat, which is close to the connected threaded rod body, and the arc-shaped clamping groove is consistent with the length dimension of the mounting frame.

Preferably, the clamping plate is located between the mounting frame and the nut.

The beneficial effects are that:

1. the application provides a screw extraction device for twin-screw extruder, this screw extraction device is convenient when using to be used for extracting and extruding the screw rod of material and dismouting and can carry out firm fixed processing to it when the installation screw rod, when making things convenient for the staff to dismantle the screw rod of damage and change the operation, can also firmly fix the screw rod of new change, guarantee twin-screw extruder's normal use.

2. When the screw rod that damages is needed to dismantle the operation, unscrew the nut of threaded rod outer periphery, upwards pulling cardboard again for the cardboard drives the spacing fixture block of arc and breaks away from inside the arc draw-in groove, and the spacing seat that the rethread screw rod body tip is connected pulls out the screw rod body from the external orifice on the mounting bracket and the hole on the limit seat, upwards again pulls out the limit seat from the mounting bracket inside, thereby can realize dismantling the screw rod that damages fast down, makes things convenient for the staff to dismantle the change processing of screw rod that damages.

3. When carrying out the installation operation to the screw rod that newly changes, insert the limit seat that the screw rod tip is connected to the mounting bracket inside earlier, insert the screw thread body of rod to the external hole on the mounting bracket and in the hole on the limit seat, insert the in-process to external hole and hole at the screw thread body of rod, establish the cardboard cover at the screw rod periphery again, and the inside of arc draw-in groove is established to the spacing fixture block of arc follow cardboard downstream, realize the spacing processing to the screw thread body of rod through limit seat and the spacing fixture block of arc that the screw thread body of rod tip is connected, avoid the screw thread body of rod to produce not hard up, realize the preliminary fixed to the screw rod, the rethread overlaps the screw rod periphery and screws up, realize further strengthening fixedly to the screw rod, make the both ends of screw rod can firmly fix on the mounting bracket.

4. Because the positioning effect of the guide slide bar, the arc clamping groove does not deflect in the process of following the movement of the threaded rod body and the opening of the arc clamping groove is always upward, so that a worker can insert the arc limiting clamping block into the arc clamping groove rapidly, and the screw rod is further convenient to install and fix by the worker.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the detailed description of non-limiting embodiments, made with reference to the following drawings, in which:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is an enlarged schematic view of the extraction structure according to the present utility model;

FIG. 3 is an enlarged schematic view of a portion of the structure of an end connector according to the present utility model;

FIG. 4 is an enlarged partial schematic view of portion A of FIG. 3 in accordance with the present utility model;

FIG. 5 is an enlarged schematic view of the structure of the clamping plate according to the present utility model.

In the figure:

1. a mounting box; 2. a motor frame; 3. a servo motor; 4. a driven synchronous pulley; 5. a synchronous belt; 6. a first screw; 7. a second screw; 800. a side end seat; 801. a mounting frame; 802. a rotating rod; 803. a clamping plate; 804. a nut; 805. a threaded rod body; 806. a guide slide; 807. an arc-shaped clamping groove; 808. arc-shaped limit clamping blocks; 9. and (5) driving the synchronous belt pulley.

Detailed Description

The present application is described in further detail below with reference to the drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be noted that, for convenience of description, only the portions related to the utility model are shown in the drawings.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Referring to fig. 1 and 2, a screw extraction device for a twin-screw extruder is shown, including mounting box 1, be connected with pivot first and pivot second on the left side lateral wall of mounting box 1 in a rotating way respectively, and pivot first and pivot second are the front and back symmetry setting, the periphery of pivot first cup joints and is fixed with initiative synchronous pulley 9, the periphery of pivot second cup joints and is fixed with driven synchronous pulley 4, the periphery of initiative synchronous pulley 9 and driven synchronous pulley 4 overlap jointly and are equipped with the hold-in range 5 with the cooperation work of two, fixedly connected with motor frame 2 in the department corresponding to pivot position on the lateral wall of mounting box 1, fixedly connected with servo motor 3 on the motor frame 2, and the output shaft of servo motor 3 runs through motor frame 2 and is connected with the tip of pivot first, the inside of mounting box 1 is equipped with first screw 6 in the department corresponding to pivot position, the inside of mounting box 1 is equipped with second screw 7 in the department corresponding to pivot position, and second screw 7 is parallel arrangement with first screw 6, the both ends of first screw 6 and second screw 7 all are equipped with end connection spare, end connection spare includes bottom 801 for the inside of sealing arrangement, the inside of mounting bracket 801 is equipped with the joint hole 800, the joint of the inside of mounting bracket 801 is equipped with the joint hole 800, the joint hole is equipped with the inside of the mounting bracket 801, the joint hole is equipped with the joint hole of the inside joint with the side of the mounting bracket 801, the side of the mounting bracket is equipped with the joint hole.

Wherein, both ends of first screw rod 6 all are connected with limit seat 800, and the both ends of second screw rod 7 also all are connected with limit seat 800, and the dwang 802 that is located the left side of first screw rod 6 runs through install bin 1 and is connected with the tip of pivot one, and the dwang 802 that is located the right side of first screw rod 6 rotates to be connected on the inner wall of install bin 1, and the dwang 802 that is located the left side of second screw rod 7 runs through install bin 1 and is connected with the tip of pivot two, and the dwang 802 that is located the right side of first screw rod 6 also rotates to be connected on the inner wall of install bin 1.

The servo motor 3 is started, the first rotating shaft is driven to rotate through the servo motor 3, the first screw rod 6 is driven to rotate again and again through the rotating shaft, the driven synchronous pulley 4 is driven to rotate through the synchronous belt 5 while the first rotating shaft rotates, and the second screw rod 7 is driven to rotate through the second rotating shaft of the driven synchronous pulley 4.

Referring to fig. 3 to 5, the locking mechanism includes a threaded rod 805 inserted into the outer hole and the inner hole, the outer diameter of the threaded rod 805 is identical to the inner diameter of the outer hole, two guiding sliding strips 806 are symmetrically connected to the side wall of the threaded rod 805, limit slots matched with the two guiding sliding strips 806 are formed at positions corresponding to the inner walls of the outer hole and the inner hole, the guiding sliding strips 806 are movably inserted into the corresponding limit slots, an arc clamping slot 807 is formed above the side wall of the threaded rod 805, a clamping plate 803 is sleeved on the periphery of the threaded rod 805, an arc limit clamping block 808 matched with the arc clamping slot 807 is fixedly connected to the top wall of the inner cavity of the clamping plate 803, the arc limit clamping block 808 is movably inserted into the arc clamping slot 807, one end of the threaded rod 805 is connected with a limit seat, and the other end of the threaded rod 805 is connected with a nut 804.

The distance between the side of the limit seat, which is close to the connected threaded rod body 805, and the arc-shaped clamping groove 807 is consistent with the length dimension of the mounting frame 801.

Wherein the clamping plate 803 is located between the mounting frame 801 and the nut 804.

Referring to fig. 1 to 5, the present application provides a screw extraction device for a twin-screw extruder, where the screw extraction device is convenient to disassemble and assemble a screw for extracting and extruding materials when in use, and can firmly fix the screw when the screw is installed, so that a worker can detach and replace a damaged screw, and can firmly fix the newly replaced screw, thereby ensuring normal use of the twin-screw extruder.

When the damaged screw rod needs to be disassembled, the nut 804 on the periphery of the threaded rod body 805 is unscrewed, the clamping plate 803 is pulled upwards, the clamping plate 803 drives the arc-shaped limiting clamping block 808 to separate from the inside of the arc-shaped clamping groove 807, the limiting seat connected with the end part of the threaded rod body 805 is used for pulling out the threaded rod body 805 from the outer hole on the mounting frame 801 and the inner hole on the side end seat 800, and the side end seat 800 is pulled out from the inside of the mounting frame 801 upwards, so that the damaged screw rod can be quickly disassembled, and a worker can conveniently disassemble and replace the damaged screw rod.

When the newly replaced screw is installed, the side end seat 800 connected with the end part of the screw is inserted into the installation frame 801, the threaded rod body 805 is inserted into the outer hole on the installation frame 801 and the inner hole on the side end seat 800, the clamping plate 803 is sleeved on the periphery of the threaded rod body 805 in the process of inserting the threaded rod body 805 into the outer hole and the inner hole, the arc-shaped limiting clamping blocks 808 move downwards along with the clamping plate 803 and are inserted into the arc-shaped clamping grooves 807, the limiting treatment on the threaded rod body 805 is realized through the limiting seat connected with the end part of the threaded rod body 805 and the arc-shaped limiting clamping blocks 808, the loosening of the threaded rod body 805 is avoided, the preliminary fixing of the screw is realized, the nuts 804 are sleeved on the periphery of the threaded rod body 805 and are screwed up, the further reinforced fixing of the screw is realized, and the two ends of the screw can be firmly fixed on the installation frame 801.

Due to the positioning function of the guiding sliding bar 806, the arc clamping groove 807 does not deflect in the process of moving along with the threaded rod body 805, and the opening of the arc clamping groove is always upward, so that a worker can quickly insert the arc limiting clamping block 808 into the arc clamping groove 807, and the worker can install and fix the screw conveniently.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. The electrical components are all connected with an external main controller and 220V mains supply, and the main controller can be conventional known equipment for controlling a computer and the like. What is not described in detail in this specification is prior art known to those skilled in the art.

The foregoing description is only of the preferred embodiments of the present application and is presented as a description of the principles of the technology being utilized. It will be appreciated by persons skilled in the art that the scope of the utility model referred to in this application is not limited to the specific combinations of features described above, but it is intended to cover other embodiments in which any combination of features described above or equivalents thereof is possible without departing from the spirit of the utility model. Such as the above-described features and technical features having similar functions (but not limited to) disclosed in the present application are replaced with each other.

Claims

1. Screw extraction device for a twin-screw extruder, comprising a mounting box (1), characterized in that: the utility model discloses a motor rack (801) is equipped with including installing box (1), including installing frame (1), motor rack (2), servo motor (3), first and second pivot are the front and back symmetry setting respectively, first pivot's periphery cup joints and is fixed with driving synchronous pulley (9), second pivot's periphery cup joints and is fixed with driven synchronous pulley (4), driving synchronous pulley (9) and driven synchronous pulley (4) periphery overlap jointly and are equipped with hold-in range (5) with the work that cooperatees of two, fixed connection motor rack (2) are located corresponding with pivot position on installing box (1)'s the lateral wall, fixed connection servo motor (3) are gone up in motor rack (2), just the output shaft of servo motor (3) runs through motor rack (2) and is connected with the tip of pivot one, the inside of installing box (1) is equipped with first screw (6) corresponding with pivot position department, the inside of installing box (1) is equipped with second screw (7) corresponding with pivot position, just second screw (7) are parallel arrangement with first screw (6), first screw (6) are equipped with the tip (801) are equipped with the tip of connecting with the inside of installing frame (7) and are equipped with the tip 801 that the tip is connected with the tip (801, an inner hole matched with the side wall of the side end seat (800) is formed in the position corresponding to the outer hole, a locking mechanism is inserted into the outer hole and the inner hole together, and a rotary rod (802) is connected to the side wall of the mounting frame (801).

2. The screw extraction device for a twin screw extruder of claim 1, wherein: both ends of the first screw rod (6) are connected with edge end seats (800), and both ends of the second screw rod (7) are connected with the edge end seats (800);

the rotary rod (802) positioned at the left side of the first screw (6) penetrates through the mounting box (1) and is connected with the end part of the first rotating shaft, and the rotary rod (802) positioned at the right side of the first screw (6) is rotatably connected to the inner wall of the mounting box (1);

the rotary rod (802) positioned on the left side of the second screw rod (7) penetrates through the mounting box (1) and is connected with the end part of the second rotating shaft, and the rotary rod (802) positioned on the right side of the first screw rod (6) is also rotatably connected to the inner wall of the mounting box (1).

3. The screw extraction device for a twin screw extruder of claim 1, wherein: the locking mechanism comprises a threaded rod body (805) inserted into an outer hole and an inner hole, the outer diameter of the threaded rod body (805) is consistent with the inner diameter of the outer hole, two guide sliding strips (806) are symmetrically connected to the side wall of the threaded rod body (805), limit slots matched with the two guide sliding strips (806) are formed in the positions, corresponding to the positions, of the inner wall of the outer hole and the inner hole, the guide sliding strips (806) are movably inserted into the corresponding limit slots, an arc clamping groove (807) which is vertically arranged is formed in the upper portion of the side wall of the threaded rod body (805), a clamping plate (803) is sleeved on the periphery of the threaded rod body (805), an arc limit clamping block (808) matched with the arc clamping groove (807) is fixedly connected to the top wall of the inner cavity of the clamping plate (803), one end of the threaded rod body (805) is connected with a limit seat, and the other end of the threaded rod body (805) is movably inserted into the arc clamping groove (807).

4. A screw extraction device for a twin screw extruder according to claim 3, wherein: the distance between one side of the limiting seat, which is close to the connected threaded rod body (805), and the arc-shaped clamping groove (807) is consistent with the length dimension of the mounting frame (801).

5. A screw extraction device for a twin screw extruder according to claim 3, wherein: the clamping plate (803) is located between the mounting frame (801) and the nut (804).