CN209616305U - A kind of cladding alloy screw rod - Google Patents
A kind of cladding alloy screw rod Download PDFInfo
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- CN209616305U CN209616305U CN201920098822.6U CN201920098822U CN209616305U CN 209616305 U CN209616305 U CN 209616305U CN 201920098822 U CN201920098822 U CN 201920098822U CN 209616305 U CN209616305 U CN 209616305U
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- screw thread
- zone
- keyway
- tap bolt
- tail portion
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Abstract
The utility model discloses a kind of cladding alloy screw rods, including the body of rod and tail portion keyway, the body of rod includes plug and tap bolt layer, the plug and tail portion keyway are an integral molding structure, the tap bolt layer is fixed at the surface of plug, the cylindrical surface of the tap bolt layer is fixedly installed the first screw thread, the tap bolt layer is fixedly installed screw hole far from one end of tail portion keyway, the body of rod is divided into feed zone from one end by caudad keyway to one end far from tail portion keyway, fluxing zone and extruding zone, it is fluted around being fixedly installed along the direction of rotation of the first screw thread on the cylindrical surface of the tap bolt layer of the feed zone and fluxing zone, the second screw thread is fixedly installed in the groove, the direction of rotation of second screw thread is identical as the direction of rotation of the first screw thread, spiral shell rib is fixedly installed on the tap bolt layer of the extruding zone, spiral shell rib position Between the first adjacent screw thread；The utility model has reduction material residual, and material plasticizing speed is fast, thus the advantages of extending screw rod service life.
Description
Technical field
The utility model relates to extruder equipment technical field more particularly to a kind of screw rods.
Background technique
Important component one of of the screw rod as extruder, structure and material directly influence its service life and material
Plasticizing effect；Chinese utility model CN201619231U discloses a kind of injection molding screw structure of injection molding, including pan feeding section, compression
Section and three functional sections of metering section；It is characterized by: in the pan feeding section of the screw rod and at least one of which functional section of compression section
Shaft be equipped with several recessed portions.The original intention of screw rod setting recessed portion is to remain in the preceding a part of material in it with after
A part is kneaded, and a kind of effect of stirring is formed, and is plasticized the plastic cement of molten state quickly, but the design of the recessed portion has
Have a following defect: 1. recessed portions have a step close to the front end of pan feeding section, material easily remain in the step of recessed portion front end in the following,
The material edged in below can be slipped over directly from step top, and be difficult to squeeze away the material below step, be caused in recessed portion
A little material residual is had always, and with the increase of screw rod working time, remaining material can be by cooked-on and partially taken out of, shadow
Ring the quality of plasticizing；2. the recessed portion segment design of the design accelerates the speed that material melts there is no apparent, and every
Remaining material can accelerate the corrosion of screw rod, influence making for screw rod by prolonged high-temperature heating in the concave part of a segmentation
Use the service life.
Utility model content
The purpose of this utility model is to provide a kind of reduction material residuals, and material plasticizing speed is fast, to extend screw rod
The cladding alloy screw rod of service life, to solve the problems, such as proposed in background technique.
To achieve the goals above, technical solution adopted in the utility model is as follows:
A kind of cladding alloy screw rod, including the body of rod and tail portion keyway, the body of rod include plug and are closed by metal
The tap bolt layer of gold production, the plug and tail portion keyway are an integral molding structure, the plug structure cylindrical, the tap bolt
Layer is fixed at the surface of plug, and the cylindrical surface of the tap bolt layer is fixedly installed the first screw thread, and the tap bolt layer is far from tail
One end of portion's keyway is fixedly installed screw hole；
The body of rod is divided into feed zone, fluxing zone from one end by caudad keyway to one end far from tail portion keyway
And extruding zone, along the direction of rotation of the first screw thread around fixed setting on the cylindrical surface of the tap bolt layer of the feed zone and fluxing zone
Fluted, the groove is between adjacent first screw thread, and it is remote to fluxing zone by one end of caudad keyway from feed zone
The depth of one end from tail portion keyway is gradually decrease to zero；
The outer diameter of first screw thread of the feed zone, fluxing zone and extruding zone is equal, the first screw thread of the extruding zone
Working depth from close to fluxing zone one end to far from fluxing zone one end is gradually reduced, and the second spiral shell is fixedly installed in the groove
The direction of rotation of line, second screw thread is identical as the direction of rotation of the first screw thread, and the outer diameter of second screw thread is less than or waits
In the outer diameter of the first screw thread；
Spiral shell rib is fixedly installed on the tap bolt layer of the extruding zone, the spiral shell rib is between the first adjacent screw thread.
Further, the tap bolt layer thickness value on the plug cylindrical surface is 3-5mm.
Further, tap bolt layer of the one end of the plug far from tail portion keyway to extruding zone far from tail portion keyway one end
Thickness value is greater than the depth value of screw hole.
Further, one of angle of the spiral shell rib is acute angle, the direction of the acute angle and the direction of rotation of the first screw thread
On the contrary.
Further, the height of the spiral shell rib is less than or equal to the outer diameter of the first screw thread.
Further, the axle center Jun Chu in the axle center of the tail portion keyway, the axle center of plug and screw hole is on the same line.
Further, the length relation of feed zone, fluxing zone and extruding zone are as follows: fluxing zone > Jin Liao Duan≤extruding zone.
Further, the thread form angle of the first screw thread of the feed zone, fluxing zone and extruding zone and helix angle are equal.
The utility model has the following beneficial effects: by being arranged groove on tap bolt layer, and caudad key is leaned on from feed zone
The depth of the one end of one end of slot to fluxing zone far from tail portion keyway is gradually decrease to zero, i.e., from groove from the feed opening of material
Depth is most deep, until the tail portion of groove, the depth of groove is gradually decrease to zero, there is no can residual material step or
Other gloomy areas make handled material smoothly can be plasticized into liquid by fluxing zone since blanking section；2. passing through
Second screw thread is set in groove, and the direction of rotation of the second screw thread is identical as the direction of rotation of the first screw thread, makes material recessed
In slot, it can also be pushed forward with the rotation of the second screw thread, and the second design for being threadedly engaged groove also increases and object
The contact area of material, groove from feed zone by one end to fluxing zone far from tail portion keyway of one end of caudad keyway depth by
Decrescence as low as zero, the outer diameter of the second screw thread is less than or equal to the outer diameter of the first screw thread, illustrates the working depth value meeting of the second screw thread
Reduce with the reduction of the depth of groove, in the case that such design ensure that the speed that material advances is not affected, increases
Added the contact area of shaft and material, so that material be made faster to be plasticized into liquid, and then reduce granule materials with
The friction of shaft, so that the utility model be made to extend service life；3. by the way that spiral shell is fixedly installed on the tap bolt layer of extruding zone
Rib, spiral shell rib is between the first adjacent screw thread, when material has just enter into extruding zone, is successively combed by spiral shell rib in front end
Reason prevents the material for being clipped in middle part not to be plasticized sufficiently, can effectively guarantee that the material being extruded belongs to sufficient liquefaction.
Detailed description of the invention
Fig. 1 is the overall structure diagram of the utility model.
Specific embodiment
The utility model is further described below in conjunction with attached drawing:
A kind of cladding alloy screw rod as shown in Figure 1, including the body of rod and tail portion keyway 2, the body of rod include 11 He of plug
The tap bolt layer 12 made by metal alloy, the metal alloy layer can cover iron-based, Ni-based, cobalt-base alloys or cermet,
Visual operating condition is customized, and suitable metal alloy is selected on the surface of plug 11, that is, to form tap bolt layer 12 by laser melting coating,
Tap bolt layer 12 on 11 cylindrical surface of plug is with a thickness of 3-5mm；Plug 11 and tail portion keyway 2 are an integral molding structure, and plug 11 is in
Cylindrical structure, the cylindrical surface of tap bolt layer 12 are fixedly installed the first screw thread 121, and the first screw thread 121 is also suitable by selecting
Metal alloy by laser melting coating on the cylindrical surface of tap bolt layer 12, tap bolt layer 12 far from tail portion keyway 2 one end fixation sets
It is equipped with screw hole 122；
Tail portion keyway 2 described in the utility model is the spline of screw rod tail, for being sequentially connected with driving mechanism；
The body of rod is divided into feed zone D, fluxing zone E from one end by caudad keyway 2 to one end far from tail portion keyway 2
With extruding zone F, for the convenience of description, using D expression feed zone in specification, E indicates that fluxing zone, F indicate extruding zone；
It is set along the direction of rotation of the first screw thread 121 around fixation on the cylindrical surface of the tap bolt layer 12 of feed zone D and fluxing zone E
Be equipped with groove 123, groove 123 between adjacent first screw thread 121, and its from feed zone D by caudad keyway 2 one end to
The depth of the one end of fluxing zone E far from tail portion keyway 2 is gradually decrease to zero；
The thickness value of tap bolt layer 12 of the one end of plug 11 far from tail portion keyway 2 to extruding zone F far from 2 one end of tail portion keyway
Greater than the depth value of screw hole 122, i.e. screw hole 122 is arranged in the range of tap bolt layer 12；
Outer diameter, thread form angle and the helix angle of the first screw thread 121 of feed zone D, fluxing zone E and extruding zone F are equal, with
It is cooperated with each other convenient for shaft 1 and the barrel on extruder；The first screw thread 121 of extruding zone F from close to the one end fluxing zone E to
Working depth far from the one end fluxing zone E is gradually reduced, and the second screw thread 125, the second screw thread 125 are fixedly installed in groove 123
It is also by selecting suitable metal alloy by laser melting coating in groove 123；The direction of rotation and first of second screw thread 125
The direction of rotation of screw thread 121 is identical, belongs to left or right rotation, and the outer diameter of the second screw thread 125 is less than or equal to the first screw thread 121
Outer diameter,；
Be fixedly installed spiral shell rib 126 on the tap bolt layer 12 of extruding zone F, spiral shell rib 126 be located at the first adjacent screw thread 121 it
Between, one of angle of spiral shell rib 126 is acute angle, and the direction of the acute angle is with the direction of rotation of the first screw thread 121 on the contrary, being the acute angle
It is directed toward and advances opposite direction with material, material is cut, again by by thermoplastification by multiple spiral shell ribs 126 by spiral shell rib 126；Spiral shell
The height of rib 126 is less than or equal to the outer diameter of the first screw thread 121.
The axle center Jun Chu in the axle center of tail portion keyway 2, the axle center of plug 11 and screw hole 122 on the same line, feed zone D,
The length relation of fluxing zone E and extruding zone F are as follows: fluxing zone E > feed zone D≤extruding zone F makes material have abundance in fluxing zone E
Time is plasticized.
The manufacture craft of the utility model are as follows:
1. being integrally formed plug 11 and tail portion keyway 2；
2. required thickness is made it have, then in spiral shell by laser melting coating tap bolt layer 12 on the surface of plug first
Cladding the first screw thread 121, the second screw thread 125, groove 123 and spiral shell rib 126 are accumulated by 3D on the cylindrical surface of base 12, after the completion
Continue to keep the temperature, be slowly cooled to room temperature；
3. by mechanical tooth form grinding machine, the shape of the first screw thread 121 of finishing, the second screw thread 125 and spiral shell rib 126 is processed into
Finished product.
The working principle of the utility model are as follows: the utility model is put into the barrel of extruder, by tail portion keyway 2 and driving
Mechanism connection, the other end are connect by screw hole 122 with other mechanisms, and driving mechanism drives the utility model to rotate, in feed zone D
Material is added in place, and material is delivered to fluxing zone E and is moulded in groove 123 by the first screw thread 121 and the second screw thread 125 of rotation
It is melted into liquid, extruding zone F is then transferred to, by the combing again of spiral shell rib 126, it is ensured that the particulate matter not being melted
Material, then the material of liquid is extruded to other mold mechanisms.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (8)
1. a kind of cladding alloy screw rod, it is characterised in that: including the body of rod and tail portion keyway, the body of rod includes plug and leads to
The tap bolt layer of metal alloy production is crossed, the plug and tail portion keyway are an integral molding structure, the plug structure cylindrical,
The tap bolt layer is fixed at the surface of plug, and the cylindrical surface of the tap bolt layer is fixedly installed the first screw thread, the tap bolt
Layer is fixedly installed screw hole far from one end of tail portion keyway；
The body of rod is divided into feed zone, fluxing zone to one end far from tail portion keyway from one end by caudad keyway and squeezes
It is recessed around being fixedly installed along the direction of rotation of the first screw thread on the cylindrical surface of the tap bolt layer of section out, the feed zone and fluxing zone
Slot, the groove is between adjacent first screw thread, and it leans on one end of caudad keyway to fluxing zone far from tail from feed zone
The depth of one end of portion's keyway is gradually decrease to zero；
The outer diameter of first screw thread of the feed zone, fluxing zone and extruding zone is equal, and the first screw thread of the extruding zone is from leaning on
Nearly fluxing zone one end to the working depth far from fluxing zone one end is gradually reduced, and the second screw thread is fixedly installed in the groove,
The direction of rotation of second screw thread is identical as the direction of rotation of the first screw thread, and the outer diameter of second screw thread is less than or equal to the
The outer diameter of one screw thread；
Spiral shell rib is fixedly installed on the tap bolt layer of the extruding zone, the spiral shell rib is between the first adjacent screw thread.
2. a kind of cladding alloy screw rod according to claim 1, it is characterised in that: the spiral shell on the plug cylindrical surface
Groundwork thickness value is 3-5mm.
3. a kind of cladding alloy screw rod according to claim 2, it is characterised in that: the plug is far from tail portion keyway
The thickness value of tap bolt layer of the one end to extruding zone far from tail portion keyway one end be greater than the depth value of screw hole.
4. a kind of cladding alloy screw rod according to claim 3, it is characterised in that: one of angle of the spiral shell rib
Direction for acute angle, the acute angle is opposite with the direction of rotation of the first screw thread.
5. a kind of cladding alloy screw rod according to claim 4, it is characterised in that: the height of the spiral shell rib be less than or
Equal to the outer diameter of the first screw thread.
6. a kind of cladding alloy screw rod according to claim 5, it is characterised in that: the axle center of the tail portion keyway,
The axle center Jun Chu of the axle center of plug and screw hole is on the same line.
7. a kind of cladding alloy screw rod according to claim 6, it is characterised in that: feed zone, fluxing zone and extrusion
The length relation of section are as follows: fluxing zone > Jin Liao Duan≤extruding zone.
8. a kind of cladding alloy screw rod according to claim 7, it is characterised in that: the feed zone, fluxing zone and
The thread form angle and helix angle of first screw thread of extruding zone are equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920098822.6U CN209616305U (en) | 2019-01-19 | 2019-01-19 | A kind of cladding alloy screw rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920098822.6U CN209616305U (en) | 2019-01-19 | 2019-01-19 | A kind of cladding alloy screw rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209616305U true CN209616305U (en) | 2019-11-12 |
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ID=68450805
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920098822.6U Active CN209616305U (en) | 2019-01-19 | 2019-01-19 | A kind of cladding alloy screw rod |
Country Status (1)
| Country | Link |
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| CN (1) | CN209616305U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097908A (en) * | 2020-01-02 | 2020-05-05 | 北京机科国创轻量化科学研究院有限公司 | Screw rod of injection molding machine and manufacturing method thereof |
-
2019
- 2019-01-19 CN CN201920098822.6U patent/CN209616305U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111097908A (en) * | 2020-01-02 | 2020-05-05 | 北京机科国创轻量化科学研究院有限公司 | Screw rod of injection molding machine and manufacturing method thereof |
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