CN202399499U - Three-layer handpiece for hollow forming machine - Google Patents
Three-layer handpiece for hollow forming machine Download PDFInfo
- Publication number
- CN202399499U CN202399499U CN2012200236078U CN201220023607U CN202399499U CN 202399499 U CN202399499 U CN 202399499U CN 2012200236078 U CN2012200236078 U CN 2012200236078U CN 201220023607 U CN201220023607 U CN 201220023607U CN 202399499 U CN202399499 U CN 202399499U
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- CN
- China
- Prior art keywords
- internal layer
- charging
- middle level
- cylinder
- plug
- 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
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- 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
- B29C48/30—Extrusion nozzles or dies
- B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
- B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
- B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
- B29C48/3366—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a die with concentric parts, e.g. rings, cylinders
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- 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
- B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
- B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
Abstract
The utility model discloses a three-layer handpiece for a hollow forming machine. The three-layer handpiece comprises a material cylinder, wherein a core rod is arranged in the material cylinder; three layers of material channels are arranged between the core rod and the material cylinder; a spiral groove for distributing raw materials is arranged in each layer of material channel; each layer of material channel is connected with different material inlets; the bottom of the material cylinder is provided with a material storage cavity for gathering the three layers of material channels; the bottom of the material storage cavity is provided with a coextrusion outlet; when the raw materials enter the three layers of material channels from different material inlets, each layer of raw materials is evenly distributed by rotating to distribute the raw materials by respective spiral groove; the raw materials on each layer are evenly mixed by the spiral groove to prevent generation of a healing line and are extruded from the material storage cavity via the coextrusion outlet; and the thickness of each of the three layers of hollow plastic material blanks is even.
Description
Technical field
The utility model relates to the blow moulding machine technical field and relates in particular to three layers of head of a kind of blow moulding machine.
Background technology
The present blow moulding machine that utilizes is made hollow plastic product, tubing for example, cylindrical shell etc.; At first to form the plastics material base of hollow with head; Utilize the equipment such as mould, blow needle of head below to carry out blow molding then, the material base of present hollow plastic machine head manufacturing all is single layer structure usually, and the hollow molding machine head of making three layers of hollow plastic material base can be arranged at present; The thickness that the material base that produces is every layer is not very even; And and the material mixing on every layer insufficient, be easy to generate the healing line, the product quality that causes material base thus to make is bad.
Summary of the invention
The utility model technical problem to be solved is: provide a kind of blow moulding machine three layers of head; It can make evenly and not heal three layers of hollow plastic material base of line of each layer thickness, and a kind of method of utilizing the utility model to make the hollow plastic material base of middle level foaming also is provided simultaneously.
For solving the problems of the technologies described above, the technical scheme of the utility model is: three layers of head of a kind of blow moulding machine comprise the material cylinder; Be provided with plug in the said material cylinder; Said plug bottom through the plug joint with hang the iron joint sliding and be connected with and hang iron, said material cylinder lower end through port die body is fixedly connected with a mouthful mould, the said iron that hangs forms co-extrusion outlet with mouthful mould; Be arranged with internal layer charging cover, middle level charging cover and outer charging cover on the said plug from inside to outside successively; Form outer layered material road between the said material inside wall of cylinder and the said outer charging cover, form the middle material road between said middle level charging cover and the said internal layer charging cover, layered material road in forming between said internal layer charging cover and the plug; The outer wall of said outer charging cover is provided with outer helicla flute, internal layer charging cover outer wall is provided with the middle level helicla flute, difference internal layer helicla flute on the outer wall on the plug;
Said material cylinder below is provided with and connects said outer layered material road, middle material road and interior layered material road storage cavity, and said storage cavity below connects said co-extrusion outlet; Be slidingly fitted with the material cylinder piston of annular in the said storage cavity, said material cylinder piston one end is connected with pull bar and between said middle level charging cover and outer charging are overlapped;
Be respectively equipped with outer charging aperture, internal layer charging aperture and internal layer charging aperture on the said material cylinder, said outer layered material road connects outer charging aperture, and said middle material road connects the middle level charging aperture, and said interior layered material road connects the internal layer charging aperture.
As a kind of preferred; The spiral fluted top of said outer charging cover has at least a circle projection to abut in the material cylinder; The helicla flute of said outer charging cover is communicated with said outer charging aperture, and the spiral fluted degree of depth of said outer charging cover shoals gradually, and said spiral fluted projection from top to bottom increases apart from the distance of the material inside wall of cylinder gradually; The width in said outer layered material road from top to bottom increases gradually, and said outer charging puts the discharging opening place that is positioned at said outer layered material road and is provided with outer resistance material ring.
As a kind of improvement, it is that four branch charging apertures connect outer helicla flute that said outer charging aperture is divided into.
As a kind of improvement, said internal layer charging cover is positioned at spiral fluted below, middle level and is provided with middle level resistance material ring.
As a kind of improvement, internal layer spiral fluted below in said plug position is provided with internal layer resistance material ring.
Owing to adopt technique scheme; Raw material gets into outer layered material road, middle material road and interior layered material road by outer charging aperture, middle level charging aperture and outer charging aperture respectively, finally imports storage cavity again, is extruded from the co-extrusion outlet of hanging between iron and mouthful mould by material cylinder piston; Form three layered material bases; The helicla flute that plug, internal layer charging cover and outer charging put can make the raw material rotation, and distribution mixes, and the thickness of every layer of raw material is more even like this; And the material base of making the line that heals can not occur, and the material base product quality of making is higher naturally thus.
Because said outer spiral fluted top has at least a circle projection to abut in the material cylinder, so the flow direction of raw material herein makes raw material can overlap a week around outer charging at least fully along outer helicla flute rotation; Shoal gradually owing to the said outer spiral fluted degree of depth again; Said outer spiral fluted projection from top to bottom increases apart from the distance of the material inside wall of cylinder gradually, and the width in said outer layered material road from top to bottom increases gradually, can make raw material existing helical flow in flow process that perpendicular flow is arranged again; And by mainly being that helical flow gradually becomes perpendicular flow; Make the distribution of material more even, because said outer charging puts the discharging opening place that is positioned at said outer layered material road and is provided with outer resistance material ring, outer resistance material ring place is less with the gap of material cylinder again; Can play the speed that the restriction raw material flows; Raw material is piled up above the resistance material ring, the space of outer resistance material ring top is filled up, make product distribution even.
Middle level resistance material ring is identical with the effect of outer resistance material ring with internal layer resistance material ring.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Accompanying drawing is the structure cutaway view of the utility model embodiment;
1, outer charging aperture; 2, the material cylinder; 3, outer charging cover; 4, outer layered material road; 5, outer resistance material ring; 6, the internal layer charging aperture; 7, the middle level charging aperture; 8, plug; 9, internal layer charging cover; 10, the middle material road; 11, pull bar; 12, middle level charging cover; 13, interior layered material road; 14, middle level resistance material ring; 15, internal layer resistance material ring; 16, material cylinder piston; 17, storage cavity; 18, the plug joint; 19, hang the iron joint; 20, mouthful die body; 21, hang iron; 22, mouthful mould.
The specific embodiment
Shown in accompanying drawing, three layers of head of a kind of blow moulding machine comprise material cylinder 2; Be provided with plug 8 in the said material cylinder 2; Said plug 8 bottoms through plug joint 18 with hang iron 21 joints 19 and slidely connect and hang iron 21, said material cylinder 2 lower end through port moulds 22 bodies 20 are fixedly connected with mouthful mould 22, the said iron 21 that hangs forms the co-extrusions outlet with mouthful mould 22; Said structure is identical with structure of the prior art and principle, repeats no more;
Be arranged with internal layer charging cover 9, middle level charging cover 12 and outer charging cover 3 on the said plug 8 from inside to outside successively; Form outer layered material road 4 between said material cylinder 2 inwalls and the said outer charging cover 3; Form middle material road 10 between said middle level charging cover 12 and the said internal layer charging cover 9; Layered material road 13 in forming between said internal layer charging cover 9 and the plug 8; The outer wall of said outer charging cover 3 is provided with outer helicla flute, the internal layer charging is overlapped 9 outer walls and is provided with the middle level helicla flute; Said internal layer charging cover 9 is positioned at spiral fluted below, middle level and is provided with middle level resistance material ring 14, difference internal layer helicla flute on the outer wall on the plug 8, and 8 internal layer spiral fluteds belows of said plug are provided with internal layer resistance material ring 15;
Said material cylinder 2 belows are provided with the storage cavity 17 that connects said outer layered material road 4, middle material road 10 and interior layered material road 13; Said storage cavity 17 belows connect said co-extrusion outlet; Be slidingly fitted with the material cylinder piston 16 of annular in the said storage cavity 17; Said material cylinder piston 16 1 ends are connected with pull bar 11 and between said middle level charging cover 12 and outer charging cover 3, said material cylinder piston 16 other ends are positioned at said storage cavity 17;
Be respectively equipped with outer charging aperture 1, internal layer charging aperture 6 and internal layer charging aperture 6 on the said material cylinder 2; Said outer layered material road 4 connects outer charging aperture 1; Said outer charging aperture 1 at first is divided into two charging apertures; Two charging apertures are further divided into two branch charging apertures respectively; Be divided into the outer helicla flute that four charging apertures connect outer charging cover 3 altogether; Said middle material road 10 connection middle level charging apertures 7, said interior layered material road 13 connects internal layer charging apertures 6;
The outer spiral fluted top of said outer charging cover 3 has at least a circle projection to abut in material cylinder 2; The outer helicla flute of said outer charging cover 3 is communicated with said outer charging aperture 1; The outer spiral fluted degree of depth of said outer charging cover 3 shoals gradually; Said outer spiral fluted projection from top to bottom increases apart from the distance of material cylinder 2 inwalls gradually; The width in said outer layered material road 4 from top to bottom increases gradually, and the discharging opening place that is positioned at said outer layered material road 4 on the said outer charging cover 3 is provided with outer resistance material ring 5.
The operation principle of the utility model is:
(1) the internal layer charging aperture 6 to three layers of head of said blow moulding machine adds the internal layer raw material, and to middle level charging aperture 7 adding middle level raw materials, said middle level raw material contains the AC blowing agent, adds outer raw material to outer charging aperture 1;
(2) layered material road 13 in the internal layer raw material gets into through internal layer helicla flute rotation distributed uniform, gets into storage cavity 17; The middle level raw material gets into middle material road 10, and helicla flute rotation distributed uniform gets into storage cavity 17 through the middle level; Outer raw material distributes all and, entering storage cavity 17 through outer helicla flute, and internal layer raw material, middle level raw material and outer raw material are filled storage cavity 17 jointly gradually; Make to be positioned at the rising of storage cavity 17 inner carriers, and in storage cavity 17, be divided into three layers, the internal layer raw material is positioned at internal layer; The middle level raw material is positioned at the middle level, and outer raw material is positioned at skin;
When (3) piston rises to certain altitude, through driving mechanism pushing pull bar 11, thereby piston is moved down, internal layer raw material, middle level raw material and the outer raw material that will be positioned at storage cavity 17 are extruded by the co-extrusion outlet together,
If add blowing agent in the raw material of middle level, can produce three layers of hollow plastic material base of middle level foaming.
Claims (5)
1. three layers of head of blow moulding machine; Comprise the material cylinder, be provided with plug in the said material cylinder, said plug bottom through the plug joint with hang the iron joint sliding and be connected with and hang iron; Said material cylinder lower end through port die body is fixedly connected with a mouthful mould; The said iron that hangs forms the co-extrusion outlet with mouthful mould, it is characterized in that: be arranged with internal layer charging cover, middle level charging cover and outer charging cover on the said plug from inside to outside successively, form outer layered material road between the said material inside wall of cylinder and the said outer charging cover; Form the middle material road between said middle level charging cover and the said internal layer charging cover; Layered material road in forming between said internal layer charging cover and the plug, the outer wall of said outer charging cover are provided with outer helicla flute, internal layer charging cover outer wall is provided with the middle level helicla flute, difference internal layer helicla flute on the outer wall on the plug;
Said material cylinder below is provided with and connects said outer layered material road, middle material road and interior layered material road storage cavity, and said storage cavity below connects said co-extrusion outlet; Be slidingly fitted with the material cylinder piston of annular in the said storage cavity, said material cylinder piston one end is connected with pull bar and between said middle level charging cover and outer charging are overlapped;
Be respectively equipped with outer charging aperture, internal layer charging aperture and internal layer charging aperture on the said material cylinder, said outer layered material road connects outer charging aperture, and said middle material road connects the middle level charging aperture, and said interior layered material road connects the internal layer charging aperture.
2. three layers of head of blow moulding machine as claimed in claim 1; It is characterized in that: said outer spiral fluted top has at least a circle projection to abut in the material cylinder; Said outer helicla flute is communicated with said outer charging aperture; The said outer spiral fluted degree of depth shoals gradually; Said outer spiral fluted projection from top to bottom increases apart from the distance of the material inside wall of cylinder gradually, and the width in said outer layered material road from top to bottom increases gradually, and said outer charging puts the discharging opening place that is positioned at said outer layered material road and is provided with outer resistance material ring.
3. three layers of head of blow moulding machine as claimed in claim 2 is characterized in that: it is that four branch charging apertures connect outer helicla flute that said outer charging aperture is divided into.
4. like claim 1, three layers of head of 2 or 3 described blow moulding machines, it is characterized in that: said internal layer charging cover is positioned at spiral fluted below, middle level and is provided with middle level resistance material ring.
5. three layers of head of blow moulding machine as claimed in claim 1 is characterized in that: internal layer spiral fluted below in said plug position is provided with internal layer resistance material ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200236078U CN202399499U (en) | 2012-01-18 | 2012-01-18 | Three-layer handpiece for hollow forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200236078U CN202399499U (en) | 2012-01-18 | 2012-01-18 | Three-layer handpiece for hollow forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202399499U true CN202399499U (en) | 2012-08-29 |
Family
ID=46697173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200236078U Expired - Fee Related CN202399499U (en) | 2012-01-18 | 2012-01-18 | Three-layer handpiece for hollow forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202399499U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555186A (en) * | 2012-01-18 | 2012-07-11 | 潍坊市新恒达机械有限公司 | Three-layer machine head for blowing molding machine and method for manufacturing three-layer hollow blank with foaming intermediate layer |
-
2012
- 2012-01-18 CN CN2012200236078U patent/CN202399499U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102555186A (en) * | 2012-01-18 | 2012-07-11 | 潍坊市新恒达机械有限公司 | Three-layer machine head for blowing molding machine and method for manufacturing three-layer hollow blank with foaming intermediate layer |
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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: 20120829 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |