WO2022017104A1

WO2022017104A1 - Table having special-shaped load bearing members and manufacturing method for special-shaped load bearing members

Info

Publication number: WO2022017104A1
Application number: PCT/CN2021/101483
Authority: WO
Inventors: 倪良正; 张叙俊; 厉权贯; 王荣生
Original assignee: 圣奥科技股份有限公司
Priority date: 2020-07-24
Filing date: 2021-06-22
Publication date: 2022-01-27
Also published as: CN111990759A

Abstract

A table having special-shaped load bearing members. The table comprises a set of table legs (8). The special-shaped load bearing members (3) and the table legs (8) are fittedly mounted; table board supporting portions (9) and the special-shaped load bearing members (3) are fittedly mounted; a table board (10) is fittedly mounted on the table board supporting portions (9); and each of the special-shaped load bearing members (3) comprises a steel member (1) and a PU wrapping member (6) wrapped round the steel member (1). The special-shaped load bearing members (3) are high in appearance plasticity and can meet various different appearance design demands, and the surface of each PU wrapping member (6) can be made into single-color paint or manually pasted veneer; the special-shaped load bearing members (3) are high in structural plasticity, and can be designed according to the actual load bearing capacity of a component, and a hollow pipe can be additionally provided on each steel member (1) so as to be used for wiring of furniture products; the special-shaped load bearing members (3) can be produced quantitatively, and an injection molding process can be suitable for batch production; and production cost is low.

Description

A table with a special-shaped load-bearing member and a manufacturing method of the special-shaped load-bearing member

technical field

The invention belongs to the field of furniture, and in particular relates to a table with a special-shaped load-bearing member and a manufacturing method of the special-shaped load-bearing member.

Background technique

In order to meet the aesthetic needs of modern office furniture, there will be various innovations in the appearance design. It is no longer the straight-up and straight-down appearance structure in the past, and there are many curved and irregular parts. It is difficult to meet the demand with MDF and particleboard.

Based on the above problems, the applicant proposes a table with a special-shaped load-bearing member and a manufacturing method of the special-shaped load-bearing member.

SUMMARY OF THE INVENTION

In order to make up for the deficiencies of the prior art, the present invention provides a table with a special-shaped load-bearing member and a technical scheme of a manufacturing method of the special-shaped load-bearing member.

The described table with special-shaped load-bearing parts is characterized by comprising a set of table legs, the table legs are matched with the special-shaped load-bearing parts, the special-shaped load-bearing parts are installed with the support part of the table board, and the table board is installed on the support part of the table board. The special-shaped load-bearing parts include steel parts and PU cladding parts wrapped outside the steel parts, and PU refers to polyurethane materials.

The above-mentioned table with special-shaped load-bearing parts is characterized in that a set of diversion perforations for easy injection molding and a set of screw holes and threading holes for convenient connection with other components are provided on the steel parts, and the PU covering parts are provided with a set of holes. A first through hole corresponding to the screw hole and a second through hole corresponding to the threading hole are opened.

The method for manufacturing a special-shaped load-bearing piece of furniture is characterized by comprising:

Step S1: Design and manufacture steel parts;

Step S2: positioning the steel part in the mold;

Step S3: pouring the mold, so that the pouring material surrounds the steel part, the pouring material is PU, and the mold is closed after pouring and waits for drying;

Step S4: demoulding to obtain special-shaped load-bearing parts.

The method for manufacturing a special-shaped load-bearing piece of furniture is characterized in that in the step S1, if the width of the steel plate of the steel part exceeds 300 mm, a diversion perforation is provided in the middle of the steel plate, so that the casting material can be placed in the mold cavity during pouring. diversion.

The method for manufacturing a special-shaped load-bearing member of furniture is characterized in that in the step S1, if the special-shaped load-bearing member needs to be connected and cooperated with other components during use, a screw hole and a screw hole for connection are provided on the steel member. needle.

The method for manufacturing a special-shaped load-bearing piece of furniture is characterized in that in the step S2, all screw holes and threading holes on the steel piece are blocked with screws and plugs respectively, and the length of the screws and the plugs is left longer than the length of the screw. The inner wall of the mold cavity shall prevail, so that corresponding holes are formed on the formed PU covering.

The method for manufacturing a special-shaped load-bearing piece of furniture is characterized in that in the step S2, the inner wall of the cavity of the mold has a boss for supporting and positioning the steel piece and making it suspended, and the steel piece and the The minimum distance between the inner wall of the cavity is ≥5 mm.

The method for manufacturing a special-shaped load-bearing piece of furniture is characterized in that in the step S2, a release agent needs to be sprayed on the surface of the cavity before placing the steel piece into the cavity of the mold.

The method for manufacturing a special-shaped load-bearing piece of furniture is characterized in that in the step S3, the concrete pouring is a mixture of MDI and polyisocyanate, and the pouring amount is 450-550 kg/m ³ .

The method for manufacturing a special-shaped load-bearing piece of furniture is characterized in that in the step S3, the drying time after the mold is poured is ≥1.5 hours.

Beneficial effects of the present invention: the special-shaped load-bearing part of the present invention has strong appearance plasticity, which can meet various design requirements; , the special-shaped load-bearing parts can be designed according to the actual bearing capacity of the parts, and hollow tubes can also be added to the steel parts for wiring and wiring of furniture products; the special-shaped load-bearing parts of the invention can be produced quantitatively, and the injection molding process can be suitable for mass production; The production cost of the invention is low.

Description of drawings

Fig. 1 is the table three-dimensional structure schematic diagram of the present invention;

Fig. 2 is a schematic view of the front structure of the table of the present invention;

Fig. 3 is the table decomposition structure schematic diagram of the present invention;

4 is a schematic diagram of the exploded structure of the special-shaped load-bearing member of the present invention;

Fig. 5 is the production method flow chart of the present invention;

6 is one of the schematic diagrams of the mold structure of the present invention;

Fig. 7 is the second schematic diagram of the mold structure of the present invention, and the mold is just installed with a steel part at this time;

FIG. 8 is the third schematic diagram of the mold structure of the present invention, at this time, the steel part is just installed with the plug.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

As shown in Figures 1-4, a table with a special-shaped load-bearing member includes two left and right table legs 8, and a special-shaped load-bearing member 3 is installed on the inner side of each table leg 8, and the two special-shaped load-bearing members 3 cooperate together. The table support part 9 is installed, and the table board 10 is installed on the table support part 9 .

A set of diversion holes 100 for easy injection molding and a set of screw holes 101 and threading holes 102 for connecting with other components are provided on the steel part 1, and a first through hole 600 corresponding to the screw holes 101 is provided on the PU covering part 6 and a second through hole 601 corresponding to the threading hole.

As shown in Figures 5-8, a method for manufacturing the above-mentioned special-shaped load-bearing member, comprising:

Step S1: Design and manufacture steel part 1;

Step S2: positioning the steel part 1 in the mold 2;

Step S3: pour the mold 2, so that the pouring material surrounds the steel parts, the pouring material is PU, and the mold is closed after pouring and waits for drying;

Step S4 : demoulding to obtain a special-shaped load-bearing member 3 .

Further explanation of step S1: First, the structure of the embedded steel part 1 of the special-shaped load-bearing part 3 should be designed, and the thickness and structure of the steel plate of the steel part 1 should meet the load-bearing requirements of the special-shaped part, that is, the actual steel part 1. The upper part is the overall skeleton, and the external PU covering part 6 is only to meet the requirements of special-shaped appearance. When the width of the steel plate of the steel part 1 exceeds 300 mm, a diversion hole 100 should be opened in the middle of the steel plate, so that the casting material can be guided in the cavity of the mold 2 during pouring. flow. If the special-shaped load-bearing member 3 needs to be connected and matched with other components during use, the steel member 1 is provided with screw holes 101 and thread holes 102 for connection.

Further explanation of step S2: the special-shaped load-bearing member 3 is produced and processed by the mold 2 in a casting mold mode. When the mold 2 is made, the inner wall of the mold cavity should be reserved to support the positioning of the steel part 1 and make it suspended. The boss 7 , the boss 7 is specifically a nut. The position and number of the boss 7 depends on the size and shape of the steel part 1. The minimum distance between the steel part 1 and the inner wall of the mold 2 cavity is ≥5 mm, which is less than the thickness of the steel part 1. If the PU coating 6 on the surface is too thin, it will affect its adhesion to the surface of the steel part 1, and it is easy to cause the surface PU coating 6 to fall off. moulding agent for release. Before pouring the mold 2, fix the steel part 1 on the boss 7 of the mold cavity. All the screw holes 101 on the steel part 1 are blocked by the screw 4. The above-mentioned nuts correspond to the screw holes 101 one by one, and the screw 4 simultaneously Screw into the screw holes and nuts, and all the threading holes 102 are blocked with plugs 5. This is to prevent the paste mixture from flowing into the holes and blocking the subsequent use. The inner wall shall prevail, and the inner wall of the mold cavity is reserved for the purpose of forming holes corresponding to the screw holes 101 and the threading holes 102 on the PU covering member 6 after the load-bearing member is demolded.

Further explanation of step S3: Step S3 is particularly cast MDI mixture and a polyisocyanate, the two form a PU material, MDI is a polyphenyl polymethylene polyisocyanates, referred to as PAPI, pouring amount by 450-550kg / m ³ Calculation, if the proportion is too large, the PU coating part 6 has a high density after curing, and the surface is smooth, and the paint adhesion is poor during subsequent painting. If the proportion is too small, the density is relatively small after curing. Dry, the time to dry is ≥ 1.5 hours.

Further explanation of step S3: after demoulding, remove the screw 4 and the plug 5 by the way.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, but not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: The technical solutions described in the foregoing embodiments can still be modified, or some or all of the technical features thereof can be equivalently replaced; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention. Scope.

Claims

A table with a special-shaped load-bearing member is characterized in that it comprises a set of table legs (8), the table legs (8) are fitted with the special-shaped load-bearing member (3), and the special-shaped load-bearing member (3) is fitted with a table support portion (9) , the table plate (10) is matched with the table plate support part (9), and the special-shaped load-bearing member (3) comprises a steel part (1) and a PU covering part (6) wrapped around the steel part (1). ).
A table with a special-shaped load-bearing member according to claim 1, characterized in that a set of guide holes (100) for easy injection molding and a set of screws for easy connection with other components are provided on the steel member (1). A hole (101) and a threading hole (102), a first through hole (600) corresponding to the screw hole (101) and a second through hole (601) corresponding to the threading hole (102) are provided on the PU covering (6). ).
A method for manufacturing a special-shaped load-bearing piece of furniture, which is characterized by comprising:

Step S1: Design and manufacture steel parts (1);

Step S2: positioning the steel part (1) in the mold (2);

Step S3: pouring the mold (2), so that the pouring material surrounds the steel part, the pouring material is PU, and after pouring, the mold is closed and the PU covering part (6) is formed;

Step S4: demoulding to obtain a special-shaped load-bearing member (3).
The method for manufacturing a special-shaped load-bearing piece of furniture according to claim 3, wherein in the step S1, if the width of the steel plate of the steel part (1) exceeds 300 mm, a diversion perforation (100) is provided in the middle of the steel plate. , which is convenient for the pouring material to flow in the cavity during pouring.
The method for manufacturing a special-shaped load-bearing member of furniture according to claim 4, characterized in that in the step S1, if the special-shaped load-bearing member (3) needs to be connected and cooperated with other components during use, the steel member (1) ) are provided with screw holes (101) and threading holes (102) for connection.
The method for manufacturing a special-shaped load-bearing piece of furniture according to claim 5, characterized in that in the step S2, all screw holes (101) and threading holes (102) on the steel piece (1) are made of screw (101) respectively. 4) Plug with the plug (5), and the length of the screw (4) and the plug (5) should be left to the inner wall of the mold cavity, so that corresponding holes are formed on the formed PU covering (6).
The method for manufacturing a furniture special-shaped load-bearing member according to any one of claims 3-6, characterized in that in the step S2, the inner wall of the cavity of the mold (2) has a steel product for supporting and positioning steel parts. (1) For the boss (7) to be suspended, the minimum distance between the steel part (1) and the inner wall of the mold cavity is ≥5 mm.
The method for manufacturing a special-shaped load-bearing piece of furniture according to any one of claims 3-6, characterized in that in the step S2, before placing the steel piece (1) into the cavity of the mold (2), it is necessary to Spray the mold release agent on the surface of the mold cavity.
The manufacturing method of a furniture according to any one profiled load-bearing member as claimed in claim 3-6, wherein said step S3, pouring concrete is a polyisocyanate with MDI mixture, pouring an amount of 450-550kg / m 3 .
The method for manufacturing a special-shaped load-bearing piece of furniture according to any one of claims 3-6, wherein in the step S3, the drying time after the mold is poured is ≥1.5 hours.