CN110480896A - A kind of rotational moulding children are mostly used tables and chairs and its manufacturing method - Google Patents
A kind of rotational moulding children are mostly used tables and chairs and its manufacturing method Download PDFInfo
- Publication number
- CN110480896A CN110480896A CN201910659553.0A CN201910659553A CN110480896A CN 110480896 A CN110480896 A CN 110480896A CN 201910659553 A CN201910659553 A CN 201910659553A CN 110480896 A CN110480896 A CN 110480896A
- Authority
- CN
- China
- Prior art keywords
- chairs
- tables
- mold
- mostly used
- rotational moulding
- 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.)
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Classifications
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D1/00—Children's chairs
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47D—FURNITURE SPECIALLY ADAPTED FOR CHILDREN
- A47D3/00—Children's tables
-
- 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
- B29C41/00—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor
- B29C41/02—Shaping by coating a mould, core or other substrate, i.e. by depositing material and stripping-off the shaped article; Apparatus therefor for making articles of definite length, i.e. discrete articles
- B29C41/04—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould
- B29C41/06—Rotational or centrifugal casting, i.e. coating the inside of a mould by rotating the mould about two or more axes
-
- 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
- B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
- B29C44/02—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of definite length, i.e. discrete articles
- B29C44/12—Incorporating or moulding on preformed parts, e.g. inserts or reinforcements
- B29C44/18—Filling preformed cavities
-
- 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
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/02—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore of moulding techniques only
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
The invention discloses a kind of rotational moulding children to be mostly used tables and chairs and its manufacturing method, including tables and chairs back side panel, it is characterized by: the two sides of tables and chairs back side panel have been respectively fixedly connected with side panel, multi-purpose inner panel is connected between two side panels, the side of multi-purpose inner panel is fixedly connected with tables and chairs back side panel, and it is not identical at a distance from side panel top and bottom end to be mostly used inner panel.Multi-purpose inner panel, side panel and tables and chairs back side panel are an integral molding structure.Side panel and tables and chairs back side panel top and bottom end flush, multi-purpose inner panel is connected between two side panels of the invention, the side of multi-purpose inner panel is fixedly connected with tables and chairs back side panel, multi-purpose inner panel is not identical at a distance from side panel top and bottom end, when seat is just put, position is lower from the ground for multi-purpose inner panel, children can sit on, the tables and chairs can be used when desk, when avoiding tables and chairs multi-purpose using rotational moulding children, rotational moulding children are mostly used tables and chairs and do not have to can be used as function that Cain and Abel uses or multi-purpose tables and chairs structure is complicated.
Description
Technical field
The invention belongs to rotational moulding children's chairs technical fields, and in particular to a kind of rotational moulding children are mostly used tables and chairs and its manufacturer
Method.
Background technique
Rotational moulding is also known as rotation molding, rotational forming, rotation-formed etc., is a kind of thermoplastic hollow forming method.It should
Method is that first plastic raw materials are added in mold, and then mold constantly rotates along two vertical axises and is allowed to heat, the plastics in mould
Under the action of gravity and thermal energy, gradually equably coating, melting are adhered in the whole surface of die cavity raw material, needed for being shaped to
The shape wanted, then product is formed through cooling and shaping, the basic process of rotation molding is very simply by powdered or liquid
Polymer is placed on heating in mold, and mold surrounds vertical axis rotation rotation and a revolution simultaneously, is then cooled and shaped.In heating rank
Section it is initial, if be dusty material, first die surface formation porous layer, then melted gradually with cyclic process
Melt, eventually forms the homogeneous layer of uniform thickness；If being fluent material, first flows and be coated in die surface, when reaching
Then stop flowing when to gel point completely.
The purpose of the present invention is to provide a kind of rotational moulding children to be mostly used tables and chairs and its manufacturing method, solves using rotational moulding youngster
When child is mostly used tables and chairs, the multi-purpose tables and chairs of rotational moulding children, which do not have, can be used as the function that Cain and Abel uses, and multi-purpose tables and chairs structure
Complexity, and when manufacture rotational moulding children are mostly used tables and chairs, if the multi-purpose inner panel that rotational moulding children are mostly used tables and chairs be not easy to insert in advance it is former
Material, multi-purpose inner panel is not easy in firm installation and inner wall, while the stability that will affect tables and chairs is not filled with to raw material inside.
Summary of the invention
The purpose of the present invention is to provide a kind of rotational moulding children to be mostly used tables and chairs and its manufacturing method, to solve to use existing rolling
When modeling children are mostly used tables and chairs, the multi-purpose tables and chairs of rotational moulding children, which do not have, can be used as the function that Cain and Abel uses, and multi-purpose tables and chairs
If structure is complicated and the multi-purpose inner panel of the multi-purpose tables and chairs of rotational moulding children is not easy to insert raw material in advance, multi-purpose inner panel is not easy to surely
Solid installation and inner wall on, while the problem of be not filled with the stability that will affect tables and chairs to raw material inside.
To achieve the above object, the invention provides the following technical scheme: a kind of rotational moulding children are mostly used tables and chairs, including after tables and chairs
Side plate 3, it is characterised in that: the two sides of tables and chairs back side panel 3 have been respectively fixedly connected with side panel 2, are connected between two side panels 2
The side of multi-purpose inner panel 1, multi-purpose inner panel 1 is fixedly connected with tables and chairs back side panel 3, is mostly used inner panel 1 and 2 top of side panel and bottom end
Distance is not identical.
Preferably, inner panel 1, side panel 2 and tables and chairs back side panel 3 is mostly used to be an integral molding structure.
Preferably, side panel 2 and 3 top of tables and chairs back side panel and bottom end flush.
A kind of multi-purpose tables and chairs manufacturing method of rotational moulding children, it is characterised in that the following steps are included:
S1: feed particles are added in flour mill and grind, obtained raw material powder is crossed 200 mesh by raw material grinding
Sieve, obtains raw material powder；
S2: raw material powder and toner are mixed, is poured into blender and stirs, obtains mixed powder；
S3: mixed powder is poured into the lower die of specified mold；
S4: upper mold is merged into lower die, and after merging well to mold, mold is installed on swivel mount, is mostly used inner panel 1
Swivel mount is delivered in heating room by corresponding die location state in a vertical shape；
S5: starting heating room mold is heated, when being heated to 120 DEG C~150 DEG C, swivel mount driven mold along
Horizontal rotating shaft is rotated, and rotational time is 5~15min；
S6: oven heats, then mold is rotated along trunnion axis while, rotate along vertical axes, while heating room temperature
Degree is increased to 180 DEG C~220 DEG C, and swivel mount is transported out from heating room, first air-cooled to mold progress to carry out water cooling again；
S7: while cooling mold, foaming granule material is heated to the softening point of foaming granule material；
S8: the foamed material of softening secondary batching: is added in the product cavity solidified in mold；
S9: foaming: continue to improve heating room temperature, make foaming granule material melt foaming filling product inner cavity；
S10: cooling and demolding: mold is transferred to cooling chamber, first air-cooled water cooling again, product is demoulded take after cooling out of mold
Out.
Preferably, mold is provided in upper mold to box out.
Preferably, in step S4, mold is installed to swivel mount and goes forward, and blocks and boxes out.
Preferably, the foamed material of softening is added in the product cavity solidified by boxing out for mold in step S8.
Preferably, raw material includes 60-90wt% thermoplastic resin, 10-35wt% modifying agent, 2-5wt% nanoscale stratiform
Silicate.
Preferably, modifying agent is made of calcium carbonate superfine powder, coupling agent, main anti-oxidant, auxiliary antioxidant and fire retardant.
Preferably, connection agent is KH-560.
Compared with the prior art, the present invention has the following beneficial effects:
(1) it is connected with multi-purpose inner panel between two side panels of the invention, the side of multi-purpose inner panel is fixed with tables and chairs back side panel
Connection, it is not identical with side panel top and bottom end at a distance to be mostly used inner panel, when seat is just put, multi-purpose inner panel from the ground position compared with
Low, children can sit on, since that intermediate block plate is located at lower middle position, so when seat is just put or puts upside down
Position is different, and the height sat is different, can be placed according to individual demand, when putting seat and putting upward, is mostly used inner panel position from the ground
It sets and relatively does, at this point, the tables and chairs can be used when desk, when avoiding tables and chairs multi-purpose using rotational moulding children, rotational moulding children are mostly used tables and chairs
Without can be used as function that Cain and Abel uses or multi-purpose tables and chairs, structure is complicated.
(2) upper mold is merged into lower die by the present invention, after merging well to mold, is blocked and is boxed out, mold is installed on rotation
On pivoted frame, it is mostly used the corresponding die location state in a vertical shape of inner panel 1, it is former convenient for being injected in multi-purpose inner panel 1 by centrifugal action
Swivel mount is delivered in heating room by raw material；Mold is heated in starting heating room, when being heated to 120 DEG C~150 DEG C,
Swivel mount driven mold is rotated along horizontal rotating shaft, and rotational time is 5~15min；Oven heats, then by mold along
Trunnion axis rotates while rotation along vertical axes, while heating room temperature and being increased to 180 DEG C~220 DEG C, mold is taken out cold
But carry out secondary filler afterwards, avoid manufacture rotational moulding children be mostly used tables and chairs when, if rotational moulding children be mostly used tables and chairs multi-purpose inner panel not
Convenient for inserting raw material in advance, multi-purpose inner panel is not easy in firm installation and inner wall, while being not filled with and being will affect to raw material inside
The stability of tables and chairs.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is side view of the invention；
Fig. 3 is front view of the invention.
In figure: 1- is mostly used inner panel, 2- side panel, 3- tables and chairs back side panel.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It please refers to shown in Fig. 1-3, the invention provides the following technical scheme: a kind of rotational moulding children are mostly used tables and chairs, including tables and chairs
Back side panel 3, it is characterised in that: the two sides of tables and chairs back side panel 3 have been respectively fixedly connected with side panel 2, connect between two side panels 2
There is multi-purpose inner panel 1, the side of multi-purpose inner panel 1 is fixedly connected with tables and chairs back side panel 3, is mostly used inner panel 1 and 2 top of side panel and bottom end
Distance it is not identical.
Preferably, inner panel 1, side panel 2 and tables and chairs back side panel 3 is mostly used to be an integral molding structure.
Preferably, side panel 2 and 3 top of tables and chairs back side panel and bottom end flush.
A kind of multi-purpose tables and chairs manufacturing method of rotational moulding children, it is characterised in that the following steps are included:
S1: feed particles are added in flour mill and grind, obtained raw material powder is crossed 200 mesh by raw material grinding
Sieve, obtains raw material powder；
S2: raw material powder and toner are mixed, is poured into blender and stirs, obtains mixed powder；
S3: mixed powder is poured into the lower die of specified mold；
S4: upper mold is merged into lower die, after merging well to mold, is blocked and is boxed out, mold is installed on swivel mount,
The corresponding die location state in a vertical shape of multi-purpose inner panel 1, swivel mount is delivered in heating room；
S5: starting heating room mold is heated, when being heated to 120 DEG C~150 DEG C, swivel mount driven mold along
Horizontal rotating shaft is rotated, and rotational time is 5~15min；
S6: oven heats, then mold is rotated along trunnion axis while, rotate along vertical axes, while heating room temperature
Degree is increased to 180 DEG C~220 DEG C, and swivel mount is transported out from heating room, first air-cooled to mold progress to carry out water cooling again；
S7: while cooling mold, foaming granule material is heated to the softening point of foaming granule material；
S8: the foamed material of softening secondary batching: is added in the product cavity solidified in mold；
S9: foaming: continue to improve heating room temperature, make foaming granule material melt foaming filling product inner cavity；
S10: cooling and demolding: mold is transferred to cooling chamber, first air-cooled water cooling again, product is demoulded take after cooling out of mold
Out.
Preferably, mold is provided in upper mold to box out.
Preferably, in step S4, mold is installed to swivel mount and goes forward, and blocks and boxes out.
Preferably, the foamed material of softening is added in the product cavity solidified by boxing out for mold in step S8.
Preferably, raw material includes 60-90wt% thermoplastic resin, 10-35wt% modifying agent, 2-5wt% nanoscale stratiform
Silicate.
Preferably, modifying agent is made of calcium carbonate superfine powder, coupling agent, main anti-oxidant, auxiliary antioxidant and fire retardant.
Preferably, connection agent is KH-560.
It should be noted that, in this document, relational terms such as first and second and the like are used merely to a reality
Body or operation are distinguished with another entity or operation, are deposited without necessarily requiring or implying between these entities or operation
In any actual relationship or order or sequence.Moreover, the terms "include", "comprise" or its any other variant are intended to
Non-exclusive inclusion, so that the process, method, article or equipment including a series of elements is not only wanted including those
Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or equipment
Intrinsic element.In the absence of more restrictions.By sentence " element limited including one ..., it is not excluded that
There is also other identical elements in the process, method, article or apparatus that includes the element ".
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (10)
1. a kind of rotational moulding children are mostly used tables and chairs, including tables and chairs back side panel (3), it is characterised in that: the two of the tables and chairs back side panel (3)
Side has been respectively fixedly connected with side panel (2), is connected with multi-purpose inner panel (1) between two side panels (2), the multi-purpose inner panel
(1) side is fixedly connected with tables and chairs back side panel (3), the multi-purpose inner panel (1) at a distance from side panel (2) top and bottom end not
It is identical.
2. a kind of rotational moulding children according to claim 1 are mostly used tables and chairs, it is characterised in that: the multi-purpose inner panel (1), side
Plate (2) and tables and chairs back side panel (3) are an integral molding structure.
3. a kind of rotational moulding children according to claim 1 are mostly used tables and chairs, it is characterised in that: the side panel (2) and tables and chairs
Back side panel (3) top and bottom end flush.
4. a kind of rotational moulding children are mostly used tables and chairs manufacturing method, it is characterised in that the following steps are included:
S1: feed particles are added in flour mill and grind, obtained raw material powder is crossed 200 meshes, is obtained by raw material grinding
To raw material powder；
S2: raw material powder and toner are mixed, is poured into blender and stirs, obtains mixed powder；
S3: mixed powder is poured into the lower die of specified mold；
S4: upper mold is merged into lower die, and after merging well to mold, mold is installed on swivel mount, and it is right to be mostly used inner panel (1)
Swivel mount is delivered in heating room by the die location answered state in a vertical shape；
S5: mold is heated in starting heating room, and when being heated to 120 DEG C~150 DEG C, swivel mount driven mold is along level
Shaft is rotated, and rotational time is 5~15min；
S6: oven heats, then mold is rotated along trunnion axis while, rotate along vertical axes, while heating room temperature liter
Up to 180 DEG C~220 DEG C, swivel mount is transported out from heating room, it is first air-cooled to mold progress to carry out water cooling again；
S7: while cooling mold, foaming granule material is heated to the softening point of foaming granule material；
S8: the foamed material of softening secondary batching: is added in the product cavity solidified in mold；
S9: foaming: continue to improve heating room temperature, make foaming granule material melt foaming filling product inner cavity；
S10: cooling and demolding: mold is transferred to cooling chamber, first product, is demoulded taking-up after cooling by air-cooled water cooling again out of mold.
5. a kind of rotational moulding children according to claim 4 are mostly used tables and chairs manufacturing method, it is characterised in that: set in the upper mold
Mold is equipped with to box out.
6. a kind of rotational moulding children according to claim 5 are mostly used tables and chairs manufacturing method, it is characterised in that: the step S4
In, mold is installed to swivel mount and goes forward, and blocks and boxes out.
7. a kind of rotational moulding children according to claim 6 are mostly used tables and chairs manufacturing method, it is characterised in that: in the step S8
The foamed material of softening is added in the product cavity solidified by boxing out for mold.
8. a kind of rotational moulding children according to claim 4 are mostly used tables and chairs manufacturing method, it is characterised in that: the raw material includes
60-90wt% thermoplastic resin, 10-35wt% modifying agent, 2-5wt% nanoscale phyllosilicate.
9. a kind of rotational moulding children according to claim 8 are mostly used tables and chairs manufacturing method, it is characterised in that: the modifying agent by
Calcium carbonate superfine powder, coupling agent, main anti-oxidant, auxiliary antioxidant and fire retardant composition.
10. a kind of rotational moulding children according to claim 9 are mostly used tables and chairs manufacturing method, it is characterised in that: the agent is
KH-560。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659553.0A CN110480896A (en) | 2019-07-22 | 2019-07-22 | A kind of rotational moulding children are mostly used tables and chairs and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910659553.0A CN110480896A (en) | 2019-07-22 | 2019-07-22 | A kind of rotational moulding children are mostly used tables and chairs and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110480896A true CN110480896A (en) | 2019-11-22 |
Family
ID=68547549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910659553.0A Pending CN110480896A (en) | 2019-07-22 | 2019-07-22 | A kind of rotational moulding children are mostly used tables and chairs and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110480896A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2625986A1 (en) * | 2012-02-10 | 2013-08-14 | Isa Pintore | Modular piece of furniture |
| CN108044859A (en) * | 2017-12-12 | 2018-05-18 | 温岭市旭日滚塑科技有限公司 | A kind of rotational foaming moulding process |
-
2019
- 2019-07-22 CN CN201910659553.0A patent/CN110480896A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2625986A1 (en) * | 2012-02-10 | 2013-08-14 | Isa Pintore | Modular piece of furniture |
| CN108044859A (en) * | 2017-12-12 | 2018-05-18 | 温岭市旭日滚塑科技有限公司 | A kind of rotational foaming moulding process |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20191122 |