CN220464695U - Combined double-screw structure with adjustable length-diameter ratio - Google Patents
Combined double-screw structure with adjustable length-diameter ratio Download PDFInfo
- Publication number
- CN220464695U CN220464695U CN202321063573.XU CN202321063573U CN220464695U CN 220464695 U CN220464695 U CN 220464695U CN 202321063573 U CN202321063573 U CN 202321063573U CN 220464695 U CN220464695 U CN 220464695U
- Authority
- CN
- China
- Prior art keywords
- ball
- rod
- diameter ratio
- groove
- fixed
- 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.)
- Active
Links
- 238000001125 extrusion Methods 0.000 claims abstract description 15
- 238000009434 installation Methods 0.000 claims description 5
- 239000000463 material Substances 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 2
- 230000007246 mechanism Effects 0.000 abstract description 2
- 239000011324 bead Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000012438 extruded product Nutrition 0.000 description 1
- 230000035553 feeding performance Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Transmission Devices (AREA)
Abstract
The utility model relates to the technical field of material processing, and discloses a combined double-screw structure with an adjustable length-diameter ratio, which comprises a clamping block, a motor, an output shaft arranged on the motor and a driving gear fixedly connected to the output shaft, wherein large ball clamping grooves are formed in the upper side and the lower side of the clamping block, balls are arranged in the large ball clamping grooves, a sliding rod is arranged below the balls, ball grooves are formed in the upper side and the lower side of the sliding rod, a powerful magnet is fixedly arranged at the top of the sliding rod, a closing device is arranged at the top of the sliding rod, a large spring is fixedly arranged at the rear end of the sliding rod, an extrusion block is connected with the rear end of the large spring, a push rod is fixedly arranged on the extrusion block, and a powerful magnet is fixedly arranged at the tail of the push rod. According to the combined double-screw structure with the adjustable length-diameter ratio, the front end of one section of screw rod can be connected with the tail end of the last screw rod through the clamping mechanism arranged in the clamping block, so that the effect of changing the length-diameter ratio of the screw rod is achieved.
Description
Technical Field
The utility model relates to the technical field of material processing, in particular to a combined double-screw structure with adjustable length-diameter ratio.
Background
The twin-screw extruder is developed on the basis of a single-screw extruder, has the advantages of pipe extrusion, plate and sheet extrusion, profile extrusion and the like, has good feeding performance, mixing plasticizing performance, air exhaust performance, extrusion stability and the like, and is widely applied to the molding processing of extruded products.
The double-screw extruder is additionally provided with one screw on the basis of the single-screw extruder, the two screws are driven by the motor and the transmission device to rotate simultaneously, and after the material is downwards fed by the feeding machine working above the screws, the material enters the working range of the double-screw extruder, and the material is gradually molded under the continuous extrusion of the double screws.
Length-to-diameter ratio of the working portion of the screw to the diameter of the screw is referred to as the length-to-diameter ratio, and increasing the length-to-diameter ratio means increasing the length of the screw, given other conditions. The length-diameter ratio is large, the temperature distribution is reasonable, the mixing and plasticizing of the plastic are facilitated, the heating time of the plastic in the machine barrel is longer, the plasticizing of the plastic is more sufficient and uniform, and the plasticizing quality is improved.
In the double-screw extruder commonly used in the market, the double screws are usually integrated, the length-diameter ratio cannot be changed at will according to the working requirement, and some machines capable of changing the length-diameter ratio are low in changing efficiency, so that the defects of low working efficiency, general quality of finished products and the like are caused.
Disclosure of Invention
Aiming at the defects of the prior art, the utility model provides a combined double-screw structure with an adjustable length-diameter ratio, which has the advantage of changing the length-diameter ratio of the double screws at any time.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an adjustable combination formula twin-screw structure of draw-in ratio, includes fixture block, motor, installs output shaft on the motor, fixed connection is at output shaft's driving gear, driven gear one and driven gear two that are connected with driving gear meshing, respectively with driven gear one and driven gear two fixed screw one and screw rod two, big ball draw-in groove has been seted up to the fixture block upper and lower both sides, install the ball in the big ball draw-in groove, the ball below is provided with the slide bar, the ball recess has been seted up to the slide bar upper and lower both sides, the powerful magnet is installed and is fixed with at the slide bar top, the slide bar top is provided with closing device, the big spring is installed and is fixed with to the slide bar rear end, big spring rear end is connected with the extrusion piece, the extrusion piece is installed and is fixed with the push rod, powerful magnet is installed fixedly installed to the push rod afterbody. When the push rod is pushed forward, the ball is padded by the ball groove to leave two small bulges on the buckle, so that the ball is meshed with the small ball clamping groove in the buckle groove, meanwhile, the elastic force of the large spring is larger than the magnetic force, the piston rod is contracted when needed, the screw rod connected at the rear is sprung by the spring, and the length-diameter ratio is reduced.
Preferably, a clamping block groove is formed in the tail of the screw rod, and a small ball clamping groove and a ball sliding groove are formed in the upper portion and the lower portion of the clamping block groove. So that the buckle is smooth and natural when contacting with the buckle groove, and can be blocked in high-speed rotation.
Preferably, the big spout has been seted up to closing device inside, square spout has been seted up to big spout inside, the buckle is installed to square spout front end, buckle afterbody installs and is fixed with little spring, little spring other end fixedly connected with push pedal, the push pedal outside is provided with pushes away and detains, closing device tail end is provided with the cylinder section of thick bamboo, the inside rotation of cylinder section of thick bamboo is connected with the pivot. So that an attractive force is generated in the contact of the buckle and the buckle groove, and the contact of the buckle and the buckle groove is smoother.
Preferably, an extension push rod is additionally arranged at the tail end of the push rod, a piston rod is arranged at the tail end of the extension push rod, and the other end of the piston rod is connected with a hydraulic rod. The expansion of the push rod is controlled through the hydraulic rod, so that time and labor are saved.
The beneficial effects are that:
1. according to the combined double-screw structure with the adjustable length-diameter ratio, the front end of one section of screw rod can be connected with the tail end of the last screw rod through the clamping mechanism arranged in the clamping block, so that the effect of changing the length-diameter ratio of the screw rod is achieved.
2. According to the length-diameter ratio adjustable combined double-screw structure, the powerful magnet arranged at the head part of the 1 sliding rod and the closing device are used for enabling the powerful magnet to provide attractive magnetic force when the buckle is contacted with the buckle groove, so that the process of contacting and meshing can be completed better.
Drawings
FIG. 1 is a schematic view of a sectional structure of a combined twin-screw with adjustable length-diameter ratio according to the present utility model;
FIG. 2 is a schematic diagram of the overall structure of a combined twin-screw with adjustable length-diameter ratio;
FIG. 3 is a schematic view of a combined twin-screw closure device with adjustable length-diameter ratio according to the present utility model;
fig. 4 is a schematic view of the back structure of a combined double-screw closure device with adjustable length-diameter ratio according to the present utility model.
In the figure: 1. a clamping block; 2. a ball groove; 3. a round bead; 4. a slide bar; 5. a large spring; 6. a large ball clamping groove; 7. extruding a block; 8. a hydraulic rod; 9. a push rod; 10. a clamping block groove; 11. a small ball clamping groove; 12. a ball chute; 13. a strong magnet; 14. a closure device; 15. a motor; 16. an output shaft; 17. a drive gear; 18. a driven gear I; 19. a driven gear II; 20. a first screw; 21. a second screw; 22. lengthening the push rod; 23. a piston rod; 141. a buckle; 142. square chute; 143. a small spring; 144. pushing and buckling; 145. a push plate; 146. a rotating shaft; 147. a cylinder barrel; 148. and a large chute.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Example 1
As shown in fig. 1-2, the adjustable combination formula twin-screw structure of draw-in ratio includes fixture block 1, motor 15, install output shaft 16 on motor 15, fixed connection is at the driving gear 17 on output shaft 16, driven gear one 18 and driven gear two 19 with driving gear 17 meshing connection, respectively with driven gear one 18 and driven gear two 19 fixed screw rod one 20 and screw rod two 21, big ball draw-in groove 6 has been seted up to fixture block 1 upper and lower both sides, install ball 3 in the big ball draw-in groove 6, ball 3 below is provided with slide bar 4, ball recess 2 has been seted up to slide bar 4 upper and lower both sides, powerful magnet 13 is installed at slide bar 4 top, slide bar 4 top is provided with closing device 14, slide bar 4 rear end installation is fixed with big spring 5, big spring 5 rear end is connected with extrusion piece 7, extrusion piece 7 installs and is fixed with push rod 9, powerful magnet 13 is installed to the afterbody of push rod 9.
The tail of the first screw rod 20 is provided with a clamping block groove 10, and the clamping block groove 10 is provided with a small ball clamping groove 11 and a ball sliding groove 12 up and down.
In this embodiment, the operator can make the piston rod 23 move forward when the length-diameter ratio of the screw needs to be increased by controlling the piston rod 23 to stretch, and the piston rod 23 props against the extension push rod 22 when moving forward, and the extension push rod 22 transmits force to the extrusion block 7 through the push rod 9. The extrusion block 7 is extruded to move forwards, compresses the big spring 5 in front and drives the slide bar 4 forwards. The upper and lower both sides of slide bar 4 are provided with ball recess 2, have also set up big ball draw-in groove 6 about fixture block 1 for ball 3 card is wherein. In the process of forward movement of the slide bar 4, the ball 3 is lifted by the ball groove 2, and a bulge is formed up and down on the clamping block 1.
In the process that the clamping block 1 enters the clamping block groove 10, the powerful magnets 13 arranged at the top of the sliding rod 4 and the tail of the push rod 9 respectively provide attractive force for the other party, and due to the existence of the round bead sliding groove 12, the protruding clamping block 1 can smoothly enter the clamping block groove 10 and be clamped in the small round bead clamping groove 11.
When the clamping block 1 and the clamping block groove 10 are required to be disconnected, the piston rod 23 is retracted backwards, the large spring 5 is restored to the original state, the sliding rod 4 is driven backwards, the round beads 3 fall into the lowest part of the round bead groove 2, the protrusions on the clamping block 1 disappear, the elastic force of the large spring 5 is larger than the magnetic force, the screw rod at the rear is sprung, and the length-diameter ratio is reduced.
Example two
As shown in fig. 3-4, on the basis of the first embodiment, a large chute 148 is provided in the closing device 14, a square chute 142 is provided in the large chute 148, a buckle 141 is installed at the front end of the square chute 142, a small spring 143 is installed and fixed at the tail of the buckle 141, a push plate 145 is fixedly connected with the other end of the small spring 143, a push button 144 is provided at the outer side of the push plate 145, a cylinder 147 is provided at the tail end of the closing device 14, and a rotating shaft 146 is rotatably connected in the cylinder 147.
The tail end of the push rod 9 is additionally provided with an extension push rod 22, the tail end of the extension push rod 22 is provided with a piston rod 23, and the other end of the piston rod 23 is connected with the hydraulic rod 8.
In this embodiment, the push button 144 fixedly mounted on the buckle 141 is laterally pushed to translate in the square chute 142, the buckle 141 compresses the small spring 143 and moves backward, and the buckle 141 completely enters the inside of the closing device 14. The cylinder 147 is movable in a circular motion around a rotating shaft 146 provided therein.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. The utility model provides an adjustable combination formula twin-screw structure of draw ratio, includes fixture block (1), motor (15), installs output shaft (16) on motor (15), fixed connection driving gear (17) on output shaft (16), driven gear one (18) and driven gear two (19) of being connected with driving gear (17) meshing, respectively with driven gear one (18) and driven gear two (19) fixed screw rod one (20) and screw rod two (21), its characterized in that: big ball draw-in groove (6) have been seted up to both sides about fixture block (1), install ball (3) in big ball draw-in groove (6), ball (3) below is provided with slide bar (4), ball recess (2) have been seted up to both sides about slide bar (4), slide bar (4) top installation is fixed with powerful magnet (13), slide bar (4) top is provided with closing means (14), slide bar (4) rear end installation is fixed with big spring (5), big spring (5) rear end is connected with extrusion piece (7), extrusion piece (7) install and are fixed with push rod (9), push rod (9) afterbody installation is fixed with powerful magnet (13).
2. The adjustable length to diameter ratio combined double screw structure according to claim 1, wherein: the tail of the first screw rod (20) is provided with a clamping block groove (10), and the clamping block groove (10) is provided with a small ball clamping groove (11) and a ball sliding groove (12) up and down.
3. The adjustable length to diameter ratio combined double screw structure according to claim 1, wherein: big spout (148) has been seted up to closing device (14) inside, square spout (142) have been seted up to big spout (148) inside, buckle (141) are installed to square spout (142) front end, buckle (141) afterbody installation is fixed with little spring (143), little spring (143) other end fixedly connected with push pedal (145), push pedal (145) outside is provided with pushes away knot (144), closing device (14) tail end is provided with cylinder (147), cylinder (147) inside rotation is connected with pivot (146).
4. The adjustable length to diameter ratio combined double screw structure according to claim 1, wherein: the tail end of the push rod (9) is additionally provided with an extension push rod (22), the tail end of the extension push rod (22) is provided with a piston rod (23), and the other end of the piston rod (23) is connected with a hydraulic rod (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321063573.XU CN220464695U (en) | 2023-05-06 | 2023-05-06 | Combined double-screw structure with adjustable length-diameter ratio |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321063573.XU CN220464695U (en) | 2023-05-06 | 2023-05-06 | Combined double-screw structure with adjustable length-diameter ratio |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220464695U true CN220464695U (en) | 2024-02-09 |
Family
ID=89799508
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321063573.XU Active CN220464695U (en) | 2023-05-06 | 2023-05-06 | Combined double-screw structure with adjustable length-diameter ratio |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220464695U (en) |
-
2023
- 2023-05-06 CN CN202321063573.XU patent/CN220464695U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN220464695U (en) | Combined double-screw structure with adjustable length-diameter ratio | |
| CN213441059U (en) | Extruder is used in processing of withstand voltage pencil pipe | |
| CN219505350U (en) | Core pulling device of pipe bending die | |
| CN217944074U (en) | Composite material extrusion injection molding integral forming injection device | |
| CN210820838U (en) | Rubber screw extruder | |
| CN115256786A (en) | Composite material extrusion injection molding integrated forming injection device and working method thereof | |
| CN113524609A (en) | High-speed extrusion device of MPP power protection pipe | |
| CN201494016U (en) | Injection molding machine control system driven by linear motor | |
| CN219835310U (en) | Paste canning mechanism applied to lipstick machine | |
| CN220429242U (en) | Plasticizing mechanism of blow molding machine | |
| CN203359252U (en) | Quick stirring device of extruder | |
| CN220219616U (en) | Plastic extrusion cooling mechanism | |
| CN220499879U (en) | High-efficient extruder screw rod | |
| CN220763424U (en) | Forming die of cold and warm fan cover body | |
| CN219632554U (en) | Two-way screw drive die casting machine | |
| CN108748868A (en) | Plastic mould with Lifting Device | |
| CN215791647U (en) | Double-screw extruder | |
| CN111790766B (en) | Feeding device of metal tube extruding machine | |
| CN219401715U (en) | Extruder is used in aluminium alloy production | |
| CN220297668U (en) | Even group sole injection molding machine | |
| CN113696443B (en) | Cushion rubber extrusion method | |
| CN201471672U (en) | Injection molding machine driven by linear motor | |
| CN218083879U (en) | Injection molding machine | |
| CN218593531U (en) | Two-stage electric injection molding machine | |
| CN112622228B (en) | Extrusion device of co-extrusion film blowing machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |