Seat body sucking and covering device and sucking and covering method thereof

Abstract

The invention belongs to the field of furniture processing, and discloses a seat body sucking and covering device and a sucking and covering method.The seat body sucking and covering device comprises a positioning and pressing assembly and a heating assembly, the positioning and pressing assembly comprises a lower bottom die, a film covering upper cover and a vacuum machine, and the lower bottom die is used for containing and positioning a seat body; the film covering upper cover is used for covering the lower bottom die and forming a closed space with the lower bottom die, a pressing film is arranged on the film covering upper cover, the vacuum machine is used for vacuumizing the closed space, so that the pressing film on the film covering upper cover tightly wraps the chair body under the action of negative pressure, and the heating assembly comprises a heater. And the heater is used for heating the thermal plastic film in the chair body to melt the thermal plastic film. The problems of glue shortage and glue leakage are solved in the mode that the hot plastic film is laid and then heated. According to the invention, the automation degree is high, repeated work tasks can be rapidly completed, the production efficiency is not influenced by fatigue, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The invention relates to the field of furniture processing, in particular to a chair body suction covering device and a suction covering method thereof. Background Art

[0002] At present, the body of some ergonomic chairs on the market includes a soft bag and a chair cover covered on the soft bag. The soft bag includes a frame made of a plastic frame or a bent wood board and a sponge fixed on the frame. The traditional chair body manufacturing process is generally to spray glue on the soft bag, and then put the chair cover on the soft bag to connect the soft bag with the chair cover. The problem is that this method can only be operated manually, which requires a high level of technical skills of the workers, and the efficiency is not high enough. It is easy to have problems such as lack of glue and leakage of glue, which affects the processing quality of the chair body. Summary of the invention

[0003] The object of the present invention is to provide a chair body suction covering device and a suction covering method thereof to solve the problems raised in the above-mentioned background technology.

[0004] To achieve the above object, the present invention provides the following technical solutions: A chair body suction device, comprising a positioning and pressing component and a heating component; The positioning and pressing assembly comprises a lower bottom mold, a film-coated upper cover and a vacuum machine, wherein the lower bottom mold is used to accommodate and position the chair body, the film-coated upper cover is used to cover the lower bottom mold and form a closed space with the lower bottom mold, the film-coated upper cover is provided with a pressing film, and the vacuum machine is used to evacuate the closed space so that the pressing film on the film-coated upper cover wraps the chair body tightly under the action of negative pressure; The heating component comprises a heater, and the heater is used for heating the thermoplastic film in the chair body to melt the thermoplastic film.

[0005] Furthermore, the lower base mold includes a positioning container and a contour template arranged in the positioning container, and the shape and size of the contour template match the chair body and are used to position and support the chair body.

[0006] Furthermore, the laminating upper cover is rotatably connected to the lower bottom mold, and the positioning and clamping assembly also includes a flipping driver, which is used to drive the laminating upper cover to flip.

[0007] Furthermore, the laminating upper cover comprises an upper cover frame and a compression film arranged on the upper cover frame.

[0008] Furthermore, the heating component also includes a lifting drive mechanism and a heat insulation cover, the lifting drive mechanism drives the heat insulation cover to rise and fall, the heat insulation cover is used to cover the film covering upper cover, and the heater is arranged in the film covering upper cover.

[0009] Furthermore, it also includes a frame and a transverse driving mechanism, at least two positioning and clamping components are arranged side by side, the heating component is laterally slidably connected to the frame, and the transverse driving mechanism is used to drive the heating component to move laterally on the frame, so that the heating component moves laterally to above different positioning and clamping components.

[0010] Furthermore, a cooling component is included, and the cooling component is used to cool the heated chair body.

[0011] Furthermore, the heater is an infrared heater.

[0012] Furthermore, the heating component also includes a heating fan, which blows the airflow heated by the heater toward the positioning and pressing component.

[0013] The present invention also provides a chair body suction covering method, which is implemented by using the chair body suction covering device as described above, comprising: Spread the thermoplastic film on the surface of the soft bag, and then put the chair cover on the soft bag to form the initial chair body; Put the chair body into the lower bottom mold, position and support the chair body through the lower bottom mold, cover the lower bottom mold with the laminating upper cover, so that the laminating upper cover and the lower bottom mold form a closed space; The closed space is evacuated by a vacuum machine, so that the compression film on the upper cover of the film wraps the chair body tightly under the action of negative pressure; The chair body is heated by a heating component to melt the thermoplastic film in the chair body; Stop heating and wait for the thermoplastic film to cool down, and the thermoplastic film will make the soft bag and the seat cover tightly bonded together.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1) The present invention can reduce labor costs and reduce manual operation procedures; 2) The present invention solves the problem of high technical requirements for workers during manual operation, making the operation more convenient.

[0015] 3) The present invention has a high degree of automation, can quickly complete repetitive tasks, and will not affect production efficiency due to fatigue, thus greatly improving production efficiency; 4) The present invention solves the problem of glue shortage and glue leakage by laying a thermoplastic film and then heating it. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is one of the structural schematic diagrams of a seat body suction and covering device of the present invention.

[0017] Figure 2 This is the second structural schematic diagram of a seat body suction covering device of the present invention, in which the cover plate below the frame is not shown.

[0018] Figure 3 The present invention is a schematic diagram of a film covering upper cover structure in a seat body suction covering device.

[0019] Figure 4 The present invention is a schematic diagram of the lower bottom mold structure of a chair body suction and covering device.

[0020] Figure 5 The present invention is a flow chart of a chair body suction covering method.

[0021] Figure 6 The figure is a schematic diagram of the connection process between the thermoplastic film and the soft bag in the chair body suction covering method of the present invention. The gap between the thermoplastic film and the soft bag in the figure is only for the convenience of distinguishing the two, and the gap does not really exist between the two.

[0022] Figure 7 The figure is a schematic diagram of the connection process between a soft bag with a thermoplastic film and a seat cover in a seat body suction covering method of the present invention. The gap between the thermoplastic film, the soft bag and the seat cover is only for the convenience of distinguishing the three, and the gap does not really exist between the three.

[0023] In the figure: lower base mold 1, positioning container 100, contour template 101, laminating cover 2, pressing film 201, cover frame 200, vacuum machine 3, heater 4, flip driver 5, lifting drive mechanism 6, insulation cover 7, frame 8, transverse drive mechanism 9, transverse motor 900, gear 901, tooth plate 902, mounting seat 903, cooling fan 10, heating fan 11, transverse seat 12, thermoplastic film a, soft bag b, chair cover c. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0025] See also Figure 1-Figure 4A chair body suction covering device comprises a frame 8, on which a positioning and pressing assembly and a heating assembly are arranged. The positioning and pressing assembly comprises a lower bottom mold 1, a film covering cover 2 and a vacuum machine 3. The lower bottom mold 1 is used to accommodate and position the chair body. The film covering cover 2 is located at the upper end of the lower bottom mold 1, and is used to cover the lower bottom mold 1 and form a closed space with the lower bottom mold 1. The film covering cover 2 has a pressing film 201. The vacuum machine 3 is installed at the bottom of the lower bottom mold 1, and is used to evacuate the closed space so that the pressing film 201 on the film covering cover 2 wraps the chair body tightly under the action of negative pressure. The heating assembly is located at the upper end of the positioning and pressing assembly, and comprises a heater 4, and the heater 4 is used to heat the thermoplastic film a in the chair body to melt the thermoplastic film a.

[0026] Continue reading Figure 2 and Figure 4 In one embodiment of the present invention, the lower bottom mold 1 includes a positioning container 100 and a contour template 101 arranged in the positioning container 100. The positioning container 100 is a container structure with an open top and a vacuum hole at the bottom. The shape and size of the contour template 101 match the chair body and are used to position and support the chair body. The bottom of the contour template 101 is connected to the bottom of the positioning container 100 through a bracket. There is a gap around the contour template 101 and the positioning container 100, so that airflow can pass through.

[0027] Among them, the contour template 101 uses 3D printing technology to print a contour mold that perfectly fits the shape of the chair body, ensuring that the back of the chair body is evenly stressed during vacuum suction.

[0028] Continue reading Figure 2 and Figure 4 In one embodiment of the present invention, the laminating upper cover 2 is rotatably connected to the lower bottom mold 1, and the laminating upper cover 2 is equivalent to the flip cover of the lower bottom mold 1. The positioning and pressing assembly also includes a flip driver 5, which is used to drive the laminating upper cover 2 to flip.

[0029] Among them, the flip driver 5 is a push rod mechanism, preferably a pneumatic push rod, and an electric push rod and a hydraulic push rod can also be used. The lower end of the flip driver 5 is rotatably connected to the frame 8, and the upper end is rotatably connected to the open end of the laminating cover 2.

[0030] Continue reading Figure 3 In one embodiment of the present invention, the film-covered upper cover 2 includes an upper cover frame 200 and a compression film 201 disposed in the upper cover frame 200. The upper cover frame 200 is a frame structure matching the positioning container 100. When the film-covered upper cover 2 is covered on the positioning container 100, the upper cover frame 200 is fitted around the positioning container 100 to achieve sealing. The compression film 201 also covers the hollow part of the upper cover frame 200, so that the above-mentioned closed space is formed between the film-covered upper cover 2 and the lower bottom mold 1. The upper cover frame 200 has transparent windows on both sides for observation.

[0031] The compression film 201 is made of polyimide film, which is resistant to high temperature and chemical corrosion, has high mechanical strength and is not easy to tear. It can ensure that the front and sides of the chair body are evenly stressed during vacuum suction, ensuring that the front of the chair body is beautiful and meets product quality requirements.

[0032] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, the heating component also includes a transverse shift seat 12, a lifting drive mechanism 6 and an insulation cover 7. The transverse shift seat 12 is arranged on the frame 8, and the lifting drive mechanism 6 is arranged on the transverse shift seat 12, which is connected to the insulation cover 7 to drive the insulation cover 7 to rise and fall. The insulation cover 7 is used to cover the coating cover 2, and the heater 4 is arranged in the coating cover 2.

[0033] The lifting drive mechanism 6 is preferably a pneumatic cylinder, and an electric cylinder or an oil cylinder may also be used. The bottom of the heat-insulating cover 7 can be fitted around the top of the film-covered upper cover 2 to reduce heat spillage.

[0034] Among them, the heater 4 is preferably an infrared heater. The infrared drying and heating method has the advantages of strong penetration, good thermal efficiency, rapid heating, high safety, etc., which can improve product quality.

[0035] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, the heating component also includes a heating fan 11, which is arranged in the insulation cover 7 and located at the upper end of the heater 4. The heating fan 11 blows the airflow heated by the heater 4 evenly toward the compression film 201, and transfers the heat to the chair body through the compression film 201.

[0036] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, the seat body suction covering device also includes a transverse driving mechanism 9, at least two positioning and clamping components are arranged side by side, and the heating component is connected to the frame 8 through a transverse sliding seat 12. The sliding connection can be achieved by setting a linear slide rail between the transverse sliding seat 12 and the frame 8. The transverse driving mechanism 9 is used to drive the heating component to move horizontally on the frame 8, so that the heating component moves horizontally to above different positioning and clamping components.

[0037] Further reading Figure 2 In one embodiment of the present invention, the transverse driving mechanism 9 includes a transverse motor 900, a gear 901, a tooth plate 902, and a mounting seat 903. The mounting seat 903 is fixedly connected to the transverse seat 12. The transverse motor 900 is installed on the mounting seat 903, and its output shaft is connected to the gear 901. The tooth plate 902 is laid horizontally on the upper end of the frame 8, and the gear 901 is meshed with the tooth plate 902.

[0038] When the transverse driving mechanism 9 is working, the transverse motor 900 drives the gear 901 to rotate, so that the gear 901 moves transversely on the tooth plate 902, and then drives the transverse motor 900, the mounting seat 903, and the heating component to move transversely through the gear 901.

[0039] In addition, the transverse driving mechanism 9 can also be implemented by a slide mechanism, a synchronous belt mechanism, a pneumatic cylinder, an electric cylinder, an oil cylinder or the like.

[0040] Continue reading Figure 1 and Figure 2 In one embodiment of the present invention, the chair body suction covering device further comprises a cooling assembly, which is used to cool the heated chair body. The cooling assembly comprises a cooling fan 10, which is obliquely mounted on the frame 8 and blows air toward the positioning and pressing assembly.

[0041] Continue reading Figure 5-Figure 7 A method for sucking and covering a seat body is implemented by using the seat body sucking and covering device as described above, comprising: Step 1, such as Figure 6 As shown, the thermoplastic film a is spread on the upper surface of the soft bag b, that is, the surface in contact with the human body, and the thermoplastic film a completely covers the upper surface of the soft bag b. Figure 7 As shown, the chair cover c is then put onto the soft bag b, and the chair cover c completely covers the soft bag b to form the initial chair body.

[0042] Step 2, place the chair body into the lower bottom mold 1, and position and support the chair body through the contour template 101 of the lower bottom mold 1, then the flip driver 5 drives the coating cover 2 to rotate downward and cover the lower bottom mold 1, so that the coating cover 2 and the lower bottom mold 1 form a closed space.

[0043] Step 3, the transverse driving mechanism 9 drives the heating component to the top of the positioning and pressing component, and the lifting driving mechanism 6 drives the heat insulation cover 7 to move down to cover the laminating upper cover 2.

[0044] Step 4, vacuumizing the enclosed space by means of the vacuum machine 3, so that the compression film 201 on the film cover 2 wraps the upper surface of the chair body tightly under the action of negative pressure, while the lower surface of the chair body is wrapped by the fitted contour template 101.

[0045] Step 5, heating the chair body by a heating component to melt the thermoplastic film a in the chair body.

[0046] Step 6, stop heating, then the lifting drive mechanism 6 drives the heat insulation cover 7 to move upward, and the transverse drive mechanism 9 drives the heating component to the top of the next positioning and pressing component to heat the next product.

[0047] Step 7, the flip driver 5 drives the film cover 2 to open, and then the chair body is cooled by the cooling component. After the thermoplastic film a is cooled and solidified, the thermoplastic film a makes the soft bag b and the chair cover c fit tightly.

[0048] It should be noted that the seat body suction covering device of the present invention works by a heating component cooperating with at least two positioning and clamping components, each of which is equipped with a cooling fan. Since there is an interval time between loading and cooling of the product, when the heating component completes heating the product in the previous positioning and clamping component, it switches to the next workstation to heat the product in the next positioning and clamping component. The back and forth switching of the heating component is achieved through the transverse driving mechanism 9, which can save costs and improve efficiency.

[0049] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A seat body suction device, characterized in that: It includes a positioning and pressing component and a heating component; The positioning and pressing assembly comprises a lower bottom mold (1), a film-coated upper cover (2) and a vacuum machine (3); the lower bottom mold (1) is used to accommodate and position the chair body; the film-coated upper cover (2) is used to cover the lower bottom mold (1) and form a closed space with the lower bottom mold (1); the film-coated upper cover (2) is provided with a pressing film (201); and the vacuum machine (3) is used to evacuate the closed space so that the pressing film (201) on the film-coated upper cover (2) wraps the chair body tightly under the action of negative pressure; The heating component comprises a heater (4), and the heater (4) is used to heat the thermoplastic film (a) in the chair body to melt the thermoplastic film (a).

2. A chair body suction device according to claim 1, characterized in that: The lower base mold (1) comprises a positioning container (100) and a contour template (101) arranged in the positioning container (100); the contour template (101) has a shape and size that matches the chair body and is used to position and support the chair body.

3. The seat body suction device according to claim 1, characterized in that: The laminating upper cover (2) is rotatably connected to the lower bottom mold (1), and the positioning and pressing assembly further comprises a flipping driver (5), wherein the flipping driver (5) is used to drive the laminating upper cover (2) to flip.

4. The seat body suction device according to claim 1, characterized in that: The film-covered upper cover (2) comprises an upper cover frame (200) and a compression film (201) arranged on the upper cover frame (200).

5. The seat body suction device according to claim 1, characterized in that: The heating component further comprises a lifting drive mechanism (6) and a heat insulation cover (7); the lifting drive mechanism (6) drives the heat insulation cover (7) to lift and lower; the heat insulation cover (7) is used to cover the film-coated upper cover (2); and the heater (4) is arranged in the film-coated upper cover (2).

6. The seat body suction device according to claim 5, characterized in that: It also includes a frame (8) and a transverse driving mechanism (9), wherein at least two positioning and clamping components are arranged side by side, and the heating component is connected to the frame (8) in a transverse sliding manner. The transverse driving mechanism (9) is used to drive the heating component to move transversely on the frame (8) so that the heating component moves transversely to above different positioning and clamping components.

7. The seat body suction device according to claim 1, characterized in that: It also includes a cooling component, which is used to cool the heated chair body.

8. The seat body suction device according to claim 1, characterized in that: The heater (4) is an infrared heater.

9. The seat body suction device according to claim 1, characterized in that: The heating component also includes a heating fan (11), and the heating fan (11) blows the airflow heated by the heater (4) toward the positioning and pressing component.

10. A method for suction covering a chair body, characterized in that: The method is implemented by using the chair body suction covering device as described in any one of claims 1 to 9, comprising: Lay a thermoplastic film (a) on the surface of the soft bag (b), and then put a chair cover (c) on the soft bag (b) to form an initial chair body; The chair body is placed in the lower bottom mold (1), the lower bottom mold (1) is used to position and support the chair body, and the lower bottom mold (1) is covered with a laminated upper cover (2), so that the laminated upper cover (2) and the lower bottom mold (1) form a closed space; The enclosed space is evacuated by a vacuum machine (3), so that the compression film (201) on the film-covered upper cover (2) wraps the chair body tightly under the action of negative pressure; The chair body is heated by a heating component to melt the thermoplastic film (a) in the chair body; The heating is stopped, and after the thermoplastic film (a) cools down, the thermoplastic film (a) makes the soft bag (b) and the chair cover (c) fit together tightly.

Images