CN2642498Y - Screw disassembling device for screw extruder - Google Patents
Screw disassembling device for screw extruder Download PDFInfo
- Publication number
- CN2642498Y CN2642498Y CNU032769113U CN03276911U CN2642498Y CN 2642498 Y CN2642498 Y CN 2642498Y CN U032769113 U CNU032769113 U CN U032769113U CN 03276911 U CN03276911 U CN 03276911U CN 2642498 Y CN2642498 Y CN 2642498Y
- Authority
- CN
- China
- Prior art keywords
- screw
- guide rail
- extruder
- screw rod
- extruding machine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/25—Component parts, details or accessories; Auxiliary operations
- B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
- B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
- B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
- B29C48/405—Intermeshing co-rotating screws
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The utility model relates to a screw-disassembling device for a screw-extruding machine and is applicable for disassembling of a sing screw or double screws. A gear-rack type guide rail frame is connected at the end surface of a barrel flange at a tail end of an extruding machine head, while the other end of the guide rail frame is supported by a support frame, which is as high as a center of the extruding machine. A gearbox is equipped at the guide rail frame and is provided with two gears, which are of the same diameter and which mesh with each other. The two gears mesh with the two gear racks at a guide rail respectively. One side of the gearbox near the screw is connected to a tensile plate in a fixed way. The tensile plate is equipped with a connecting bolt, which is fastened tightly into the screw-threaded hole of a screw core axle of the extruding machine to drive the screw move in an axial direction. The device is convenient and fast for operation, and saves time and labor. The pulling movement is stable and reliable. In particular, the device guarantees that two screws of the double-screw extruding machine are disassembled in parallel synchronously.
Description
Technical field
The utility model relates to the screw rod provision for disengagement that is used for screw extruder, especially for the screw rod provision for disengagement of parallel double-screw extruder
Background technology
The processing of various plastic products when shutting down and changing product or change material routinely, all needs the disassembly, cleaning screw rod with screw extruder, and single screw rod method of employing usually is, passes the hollow output shaft of transmission case, and manpower pushes up with iron rod.And the general method of dismounting twin-screw is that manpower is pulled out screw rod together from the machine barrel front portion.The manpower dismantling screw is time-consuming, effort is extremely difficult, and easily machine barrel, screw rod even transmission case is caused damage.Chinese patent 99242134.9 discloses a kind of screw rod that is used for single screw extrusion machine and has ejected provision for disengagement, the screw rod liftout attachment is equipped with at output shaft position at reduction box, be that output shaft is a hollow shaft, leading screw is housed in it, leading screw one end is connected with hollow shaft, the other end props up screw rod, and leading screw moves along hollow shaft, ejects screw rod.To the damage problem of screw rod, be applicable to single screw extrusion machine during this device solves hand disassembly.Eject provision for disengagement 95226287.8 disclose the screw rod that is used for double screw extruder, this device also is that liftout attachment is housed in the middle of running part and twin-screw extruding part, be provided with the upper and lower frame that ejects that is connected to one, withstand screw rod tail by two projections that eject the frame middle part, eject two screw rods simultaneously.Said apparatus or be installed on the output shaft of reduction box, or be installed in the middle of running part and the twin-screw extruding part, the both has increased the complexity on the device structure and the inconvenience of fit on.
Summary of the invention
The technical problem that solves: the vibrations, the impact that during for fear of dismounting equipment are caused, avoid when particularly dismantling twin-screw cause asynchronous of two screw rods and cause interference, so that the thread that causes damage, the utility model provides a kind of steady, reliable, labour-saving screw rod provision for disengagement, can guarantee the synchronous dismounting of parallel double-screw dismounting.
Main technical schemes: connect a rack-and-pinion guide rail bracket at cross-head latter end machine barrel end face of flange, the guide rail bracket other end is by a bracing frame support contour with the extruder center, one gearcase is arranged on the guide rail bracket, two equal diameter pitch wheels are housed in the gearcase, two gears respectively with guide rail on two toothed rack engagements, gearcase passes through the fixedly connected arm-tie of bearing pin near screw rod one side, connecting bolt is housed on the arm-tie, bolt screws mutually with the screwed hole of extruder screw mandrel, and the pulling screw axial moves.
Two connecting bolts are housed on the above-mentioned arm-tie, and the center of bolt is corresponding with the center of double screw extruder two parallel screws, and two bolts screw mutually with the screwed hole of extruder two screw rods mandrel, and the pulling two screw rods moves axially synchronously.
The utility model is driven by a driving gear, extracts screw rod by the machine barrel front end, smooth operation, reliable,, for the convenient disassembly of the single screw extrusion machine screw rod of all size, laborsaving, can also guarantee the parallel synchronous dismounting of two screw rods for double screw extruder.
Description of drawings
Fig. 1 is used for double screw extruder screw rod provision for disengagement structural representation front view.
Fig. 2 is Fig. 1 vertical view.
Fig. 3 is the B-B cutaway view of Fig. 2.
Fig. 4 is used for single screw extrusion machine screw rod provision for disengagement structural representation.
Fig. 5 is the C-C cutaway view of Fig. 4.
The specific embodiment
As Fig. 1, shown in Figure 2, the utility model is used for the provision for disengagement of double screw extruder screw rod: parallel rack formula guide rail bracket 1 one ends are supported by bracing frame 8, the centre-height of bracing frame is identical with the centre-height of extruder, the guide rail bracket other end is fixedly connected on the extruder latter end machine barrel flange, a gearcase 2 that can move along guide rail is arranged on the guide rail bracket 1, intermeshing driving gear 4 and driven gear 3 are arranged in the gearcase, two gears are meshed with two toothed rack on the guide rail bracket respectively, gearcase passes through bearing pin 7 fixedly connected arm-ties 6 near screw rod one side, two connecting bolts 5 are housed on the arm-tie, the center of two bolts is corresponding with the center of double screw extruder two parallel screws, the screwed hole of screw thread on two bolts and extruder screw mandrel screws (see figure 3), and the pulling screw axial moves.When this device uses, at first remove cross-head, unload the screw head of twin-screw, connecting bolt on the arm-tie 65 is screwed in the screw of screw mandrel, screw rod and extracting apparatus are become one, and manual or motor-driven rotation driving gear 4 drives driven pulley and rotates together, gearcase 2 is moved axially along tooth bar, two screw rods is extracted synchronously from machine barrel, easy to operate, quick, save time, laborsaving, extract motion stabilization, reliable, equipment there are not impact, friction, to the screw rod not damaged.Because screw mandrel is made by high strength alloy steel, and connecting bolt is a mild steel, utilizes the cooperation of this varying strength material, repeatedly dismounting can not cause damage to mandrel thread.
Another specific embodiment of the present utility model is the screw rod provision for disengagement that is used for single screw extrusion machine, as Fig. 4, shown in Figure 5, change the size positions of arm-tie and connecting bolt and bearing pin, a connecting bolt is equipped with at the arm-tie center, the center of bolt is corresponding with the center of screw rod, the screwed hole of screw thread on the bolt and extruder screw mandrel screws (see figure 5), and the pulling screw axial moves.Be specially adapted to the dismounting of large diameter single screw rod.
Claims (2)
1, a kind of screw extruder screw rod provision for disengagement, comprise support and running part, it is characterized in that, connect a rack-and-pinion guide rail bracket at cross-head latter end machine barrel end face of flange, the guide rail bracket other end is by a bracing frame support contour with the extruder center, one gearcase is arranged on the guide rail bracket, two equal diameter pitch wheels are housed in the gearcase, two gears respectively with guide rail on two toothed rack engagements, gearcase passes through the fixedly connected arm-tie of bearing pin near screw rod one side, connecting bolt is housed on the arm-tie, and bolt screws with the screwed hole of extruder screw mandrel and is connected.
2, screw rod provision for disengagement according to claim 1 is characterized in that, two connecting bolts are housed on the arm-tie, and the center of bolt is corresponding with the center of double screw extruder two parallel screws, and two bolts screw with the screwed hole of extruder two screw rods mandrel and are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032769113U CN2642498Y (en) | 2003-07-17 | 2003-07-17 | Screw disassembling device for screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU032769113U CN2642498Y (en) | 2003-07-17 | 2003-07-17 | Screw disassembling device for screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2642498Y true CN2642498Y (en) | 2004-09-22 |
Family
ID=34302526
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU032769113U Expired - Fee Related CN2642498Y (en) | 2003-07-17 | 2003-07-17 | Screw disassembling device for screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2642498Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113948A (en) * | 2011-01-25 | 2011-07-06 | 迈柯唯医疗设备(苏州)有限公司 | Modularized connecting structure for operating bed |
| CN108908889A (en) * | 2018-09-26 | 2018-11-30 | 安徽世界村智能装备有限公司 | A kind of double-screw extruder screw draw-off gear and method |
| CN109676893A (en) * | 2018-12-24 | 2019-04-26 | 宁波宝信高分子科技有限公司 | A kind of extrusion equipment of macromolecular material production and processing |
| CN111844657A (en) * | 2020-07-17 | 2020-10-30 | 宁波市海达塑料机械有限公司 | Double-screw extrusion mechanism of large-injection-amount extrusion and injection integrated injection molding machine |
| CN114131881A (en) * | 2021-11-29 | 2022-03-04 | 邓权塑业科技（湖南）有限公司 | Machine barrel screw dismantling tool of conical double-screw extruder |
-
2003
- 2003-07-17 CN CNU032769113U patent/CN2642498Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102113948A (en) * | 2011-01-25 | 2011-07-06 | 迈柯唯医疗设备(苏州)有限公司 | Modularized connecting structure for operating bed |
| CN108908889A (en) * | 2018-09-26 | 2018-11-30 | 安徽世界村智能装备有限公司 | A kind of double-screw extruder screw draw-off gear and method |
| CN109676893A (en) * | 2018-12-24 | 2019-04-26 | 宁波宝信高分子科技有限公司 | A kind of extrusion equipment of macromolecular material production and processing |
| CN111844657A (en) * | 2020-07-17 | 2020-10-30 | 宁波市海达塑料机械有限公司 | Double-screw extrusion mechanism of large-injection-amount extrusion and injection integrated injection molding machine |
| CN114131881A (en) * | 2021-11-29 | 2022-03-04 | 邓权塑业科技（湖南）有限公司 | Machine barrel screw dismantling tool of conical double-screw extruder |
| CN114131881B (en) * | 2021-11-29 | 2023-08-18 | 邓权塑业科技（湖南）有限公司 | Barrel screw dismantling tool of conical double-screw extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |