CN205202104U - Zigzag decorative pattern screw rod for thermosetting powder coating double screw extruder - Google Patents
Zigzag decorative pattern screw rod for thermosetting powder coating double screw extruder Download PDFInfo
- Publication number
- CN205202104U CN205202104U CN201520907638.3U CN201520907638U CN205202104U CN 205202104 U CN205202104 U CN 205202104U CN 201520907638 U CN201520907638 U CN 201520907638U CN 205202104 U CN205202104 U CN 205202104U
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- screw rod
- decorative pattern
- rear end
- powder coating
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Abstract
The utility model discloses a zigzag decorative pattern screw rod for thermosetting powder coating double screw extruder: rod front is connecting portion, and the connecting portion rear end is the pay -off section, the pay -off section has the narrow band formula screw thread of great pitch, and pay -off section rear end is mixing section, mixing section is the same by a plurality of shapes but kneading block combination that the direction is different forms, kneading block's front end surface is equipped with the zigzag decorative pattern, and mixing section rear end is extrusion section, extrusion section has the narrow band formula screw thread of less pitch, pay -off section, mixing section are the same with extrusion section's outer lane maximum diameter, and the profile of tooth can mesh with spouse screw rod correspondent section respectively, the screw rod forms through the combination of modes such as bonded behind the segmental machining for whole disposable processing forms. The utility model provides a small -size whole screw rod can be applicable to laboratory or small -size double screw extruder, increases zigzag decorative pattern, the life -span of effectively having improved the part on kneading block's surface simultaneously to it is better to make mixing effect.
Description
technical field:
The utility model relates to powdery paints production equipment field, particularly relates to a kind of thermosetting powder coating double-screw extruder zigzag decorative pattern screw rod.
background technology:
Powdery paints is form diverse with general coating, and it exists with the state of attritive powder.Owing to not using solvent, so be called powdery paints.The main feature of powdery paints has: have harmless, high efficiency, saving resource and environmental protection feature.
It has two large classes: thermoplastic powder coating and thermosetting powder coating.
Thermoplastic powder coating is become to be grouped into stabilizing agent etc. by thermoplastic resin, pigment, filler, plasticizer.Thermoplastic powder coating comprises: polyethylene, polypropylene, polyester, polyvinyl chloride, chlorinated polyether, polyamide-based, cellulose-based, Polyester.
Thermosetting powder coating is made up of thermosetting resin, curing agent, pigment, filler and auxiliary agent etc.Thermosetting powder coating comprises: epoxy resin, Polyester, acrylic resin.
Heat curable powder coating refers to using thermosetting resin as film forming matter, and the curing agent having added cross-linking reaction can form insoluble not molten quality hard coat after heating.Temperature again this coating high also can not be softening as thermoplastic coating, and can only decompose.The resin adopted due to thermosetting powder coating is the prepolymer that the degree of polymerization is lower, molecular weight is lower, so the levelability of coating is better, have ornamental preferably, and low-molecular-weight prepolymer is after solidification, can form the large molecule of cross-linked network, thus coating has better anti-corrosive properties and mechanical performance.Therefore thermosetting powder coating development is particularly rapid.
Double screw extruder is one of key equipment manufacturing this type of coating, and the advantages such as because its output is high, melting effect is good, and the time of staying in machine of preparing burden is short, enterprise adopts more both at home and abroad at present.In this equipment, the part of most critical is a pair rotating Vortex and the complex screw wiped that intermeshes, the cross sectional shape of this screw rod is changed to other end segmentation by one end, be power transmission shaft the cervical part of esophagus----i.e. connecting portion with drive mechanism (as flat key, spline and clutch etc.) in turn, bolt rotary can be driven, with the feeding section of the herring bone formula screw thread compared with coarse pitch----batching of premixed can be advanced in machine, equal by some thickness, cross sectional shape is identical, but the mixing section of kneading block (cam) the pile conjunction that configuration direction is different----can be carried out intensive shear by the batching of heating and melting to running to this position and rub, mix to make ingredients, form inseparable particle, and with the extruding zone that the herring bone formula screw thread compared with fine pitch is formed----mixing section can be pushed through outside the molten formulation extruder that reduced of volume that comes, wherein feeding section, mixing section is identical with the outer ring maximum rotating diameter of extruding zone, each section of profile of tooth can engage with spouse's screw rod correspondent section respectively and wipe.Because this screw-rod structure is complicated, required precision is high, manufactures difficulty, and the method often adopted adopts the manufacture of building blocks method, and the thread bush different by two sections of pitch and some kneading blocks on request orientation mandrel wear, and are located and transmission with key.The screw rod processed like this is for ideal in production in enormous quantities, but in formula and colour matching test and small lot batch manufacture, because its capacity is large, often test and once all will waste tens even hundreds of kilogram batchings, therefore need to design the use for laboratory Minitype twin-screw extrusion machine that only can make with ten grams or tens grams of batchings and the small-sized extruder for small lot batch manufacture, the part of most critical is the structure problem solving miniature complex screw, because its size is little, according to modular construction, then mandrel is too thin, rigidity is too poor cannot be used, and the mixed block of mixing section is very easy to wearing and tearing, once wear and tear, mixed effect is had a greatly reduced quality, therefore imagination provides a kind of new construction to solve this problem.
utility model content:
The purpose of this utility model is just to provide a kind of thermosetting powder coating double-screw extruder zigzag decorative pattern screw rod, solves the structure problem of miniature complex screw.
The technical solution adopted in the utility model is:
A kind of thermosetting powder coating double-screw extruder zigzag decorative pattern screw rod: lever front end is connecting portion, connecting portion rear end is feeding section, described feeding section has the herring bone formula screw thread compared with coarse pitch, feeding section rear end is mixing section, by some shapes, the identical but kneading block that direction is different combines described mixing section, the front-end surface of described kneading block is provided with zigzag decorative pattern, and mixing section rear end is extruding zone, and described extruding zone has the herring bone formula screw thread compared with fine pitch; Described feeding section, mixing section are identical with the outer ring maximum gauge of extruding zone, and profile of tooth can engage with spouse's screw rod correspondent section respectively.
Described screw rod is that overall time processes, and is not combined by modes such as bondings after segmental machining.
Compared with prior art, the beneficial effects of the utility model are:
The utility model provides a kind of small integral screw rod, can be applicable to laboratory or Small-size Twin-Screw Extruders extruder, can save large content of starting materials, increases zigzag decorative pattern simultaneously, effectively improve the life-span of parts, and make melting effect better on the surface of kneading block.
accompanying drawing illustrates:
Fig. 1 is the utility model structural representation.
Fig. 2 is the front-end surface structural representation of the utility model kneading block.
detailed description of the invention:
Below in conjunction with accompanying drawing, by embodiment, the utility model is described in further detail:
A kind of thermosetting powder coating double-screw extruder zigzag decorative pattern screw rod: lever front end is connecting portion 1, connecting portion 1 rear end is feeding section 2, described feeding section 2 has the herring bone formula screw thread compared with coarse pitch, feeding section 2 rear end is mixing section 3, by some shapes, the identical but kneading block that direction is different combines described mixing section 3, the front-end surface 5 of described kneading block is provided with zigzag decorative pattern, and mixing section 3 rear end is extruding zone 4, and described extruding zone 4 has the herring bone formula screw thread compared with fine pitch; Described feeding section 2, mixing section 3 are identical with the outer ring maximum gauge of extruding zone 4, and profile of tooth can engage with spouse's screw rod correspondent section respectively; Screw rod is that overall time processes, and is not combined by modes such as bondings after segmental machining.
Above-described embodiment is only preferably embodiment of the present utility model, and in addition, the utility model can also have other implementations.It should be noted that, under the prerequisite not departing from the utility model design, any apparent improvement and modification all should fall within protection domain of the present utility model.
Claims (2)
1. a thermosetting powder coating double-screw extruder zigzag decorative pattern screw rod, it is characterized in that: lever front end is connecting portion, connecting portion rear end is feeding section, described feeding section has the herring bone formula screw thread compared with coarse pitch, feeding section rear end is mixing section, and by some shapes, the identical but kneading block that direction is different combines described mixing section, and the front-end surface of described kneading block is provided with zigzag decorative pattern, mixing section rear end is extruding zone, and described extruding zone has the herring bone formula screw thread compared with fine pitch; Described feeding section, mixing section are identical with the outer ring maximum gauge of extruding zone, and profile of tooth can engage with spouse's screw rod correspondent section respectively.
2. thermosetting powder coating double-screw extruder zigzag decorative pattern screw rod according to claim 1, it is characterized in that: described screw rod is that overall time processes, is not combined by bonding pattern after segmental machining.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907638.3U CN205202104U (en) | 2015-11-12 | 2015-11-12 | Zigzag decorative pattern screw rod for thermosetting powder coating double screw extruder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520907638.3U CN205202104U (en) | 2015-11-12 | 2015-11-12 | Zigzag decorative pattern screw rod for thermosetting powder coating double screw extruder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205202104U true CN205202104U (en) | 2016-05-04 |
Family
ID=55839843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520907638.3U Expired - Fee Related CN205202104U (en) | 2015-11-12 | 2015-11-12 | Zigzag decorative pattern screw rod for thermosetting powder coating double screw extruder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205202104U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109476043A (en) * | 2016-07-13 | 2019-03-15 | 株式会社日本制钢所 | Kneading disk, screw element and extruder |
-
2015
- 2015-11-12 CN CN201520907638.3U patent/CN205202104U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109476043A (en) * | 2016-07-13 | 2019-03-15 | 株式会社日本制钢所 | Kneading disk, screw element and extruder |
| US11376760B2 (en) | 2016-07-13 | 2022-07-05 | The Japan Steel Works, Ltd. | Kneading disc having band portion with bent part, screw element and extruder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160504 Termination date: 20191112 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |