A packaging base for refrigerator and a production device thereof

Abstract

The present invention discloses a packaging base for refrigerators and a production device thereof, and relates to the technical field of refrigerators. The present invention comprises a foam seat; a plurality of through holes are provided on the upper surface of the foam seat; a PET protective film is attached to the lower surface of the foam seat. And it comprises a coating device, a tunnel furnace and a vacuum adsorption device; the vacuum adsorption device comprises a table top, the table top is connected to a top block that matches the gap of the notch on the table top through a U-shaped frame and a telescopic device; the table top is connected to a vacuum box body through a guide rail; a lower cutting blade is connected to one side of the top block; a sealing pad is connected to the upper surface of the top block; a horizontal clamp is connected to the upper surface of the vacuum box body, and a suction interface is connected to the side wall. The present invention attaches the PET protective film to the bottom surface of the foam seat through a coating device, a tunnel furnace and a vacuum adsorption device, thereby solving the problem that the production of the existing packaging base is time-consuming, labor-intensive and inefficient; at the same time, the adhesive connection strength between the PET protective film and the foam seat is large and not easy to separate, which effectively improves the overall quality of the packaging base.

Description

Technical Field

[0001] The invention belongs to the technical field of refrigerators, and in particular relates to a packaging base for refrigerators and a production device thereof. Background Art

[0002] At present, the packaging base for refrigerators is mainly composed of EPS foam and PP hollow board. In actual use, the PP hollow board needs to be cut in advance and must correspond to the EPS foam one by one, that is, one specification of PP hollow board can only be used for one EPS foam.

[0003] At the same time, workers have to fold the four sides of the PP hollow board along the indentation, and then fix the PP hollow board and EPS foam together with PP sealing tape. This process is purely manual, time-consuming, labor-intensive, inefficient, and has poor quality consistency.

[0004] Secondly, the PP sealing tape has limited adhesive force. When the packaging base moves and rubs, it is very easy to cause the PP hollow board and EPS foam to separate, which can not effectively protect the EPS foam, but also affect the product packaging quality and brand image. Therefore, how to improve the assembly efficiency and product quality of the packaging base is a major problem faced by refrigerator companies and packaging base manufacturers. Summary of the invention

[0005] The purpose of the present invention is to provide a packaging base for a refrigerator and a production device thereof. A PET protective film is attached to the bottom surface of a foam base through a coating device, a tunnel furnace and a vacuum adsorption device, thereby solving the problem that the production of the existing packaging base is time-consuming, labor-intensive and inefficient. At the same time, the adhesive connection strength between the PET protective film and the foam base is large and not easy to separate, thereby effectively improving the overall quality of the packaging base.

[0006] In order to solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The invention discloses a packaging base for a refrigerator, comprising a foam base; a plurality of through holes are provided on the upper surface of the foam base; and a PET protective film is attached to the lower surface of the foam base.

[0008] Furthermore, the PET protective film has a thickness of 0.15-0.4 mm.

[0009] Furthermore, the through hole has a diameter of 2-5 mm.

[0010] A production device for a packaging base for a refrigerator, comprising a coating device for coating glue on the surface of a PET protective film; a tunnel furnace for heating the PET protective film coated with glue, and a vacuum adsorption device;

[0011] The vacuum adsorption device comprises a table top; a notch is provided on the surface of the table top; a U-shaped frame is fixedly connected to the lower surface of the table top; a guide rail is connected to the upper surface of the table top through a fixed frame, and a vacuum box body with a lower opening is connected through the guide rail;

[0012] The U-shaped frame is slidably connected to a top block that matches the slot gap; the U-shaped frame is fixedly connected to a telescopic device, and the telescopic end of the telescopic device is fixedly connected to the lower surface of the top block;

[0013] A lower cutting blade is fixedly connected to one side of the top block; a sealing gasket corresponding to the lower surface of the vacuum box is fixedly connected to the upper surface of the top block;

[0014] The top surface of the vacuum box is connected to a plurality of horizontal clips; the side wall of the vacuum box is connected to an air extraction interface.

[0015] Furthermore, a plurality of springs are fixedly connected to the top surface of the vacuum box body; a mounting plate is fixedly connected to the lower ends of the plurality of springs; and a plurality of the horizontal clips are fixedly connected to the lower surface of the mounting plate.

[0016] Furthermore, an upper cutting blade staggered with the lower cutting blade is fixedly connected to the outer side wall of the vacuum box.

[0017] The present invention has the following beneficial effects:

[0018] 1. The present invention uses a coating device, a tunnel furnace and a vacuum adsorption device to glue the PET protective film to the bottom surface of the foam seat to obtain a packaging base. Compared with manually assembling the PP hollow board and the EPS foam through PP sealing tape to obtain the packaging base, the manual operation time is reduced and the production efficiency is effectively improved.

[0019] 2. The packaging base obtained by the present invention by attaching the PET protective film adhesive to the bottom surface of the foam base has better quality consistency, and the PET protective film will not be separated from the foam base, which greatly reduces the occurrence of damage to the packaging base and significantly improves the packaging quality.

[0020] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0022] Figure 1 It is a structural schematic diagram of a packaging base for a refrigerator of the present invention;

[0023] Figure 2 It is a structural schematic diagram of a production device for a packaging base for a refrigerator of the present invention;

[0024] Figure 3 It is a structural schematic diagram of a vacuum adsorption device;

[0025] Figure 4 for Figure 3 The main view of the structure;

[0026] Figure 5 It is a structural schematic diagram of the top block;

[0027] Figure 6 It is a schematic diagram of the structure of the vacuum box from an upward perspective;

[0028] Figure 7 A half-section view of the top block and the vacuum box;

[0029] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0030] 1-foam seat, 2-PET protective film, 3-coating device, 4-tunnel furnace, 5-vacuum adsorption device, 6-vacuum box, 101-through hole, 501-table, 502-U-shaped frame, 503-top block, 504-telescopic device, 505-lower cutting blade, 506-sealing pad, 601-horizontal clamp, 602-upper cutting blade, 603-exhaust interface, 604-spring, 605-mounting plate. DETAILED DESCRIPTION

[0031] 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.

[0032] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inside", "all around" and the like indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0033] See also Figure 1As shown, the present invention is a packaging base for a refrigerator, comprising a foam seat 1, which is obtained by processing EPS foam; a plurality of through holes 101 are opened on the upper surface of the foam seat 1, and the diameter of the through holes 101 is 2-5mm, such as 2mm; a PET protective film 2 is glued to the lower surface of the foam seat 1, and the thickness of the PET protective film 2 is 0.15-0.4mm, such as 0.25mm.

[0034] like Figure 2 As shown, a production device for a packaging base for a refrigerator includes a coating device 3 for coating glue on the surface of a PET protective film 2. The PET protective film 2 is a coil. The coating device 3 continuously coats glue on the surface of the PET protective film 2 through a glue roller, and transports the PET protective film 2 forward, passes through a directional roller, and enters a tunnel furnace 4; the tunnel furnace 4 is used to heat the PET protective film 2 coated with glue. After the PET protective film 2 enters the tunnel furnace 4, the heating time is 3-8 minutes, such as 3 minutes, and the heating temperature is 110-150°C, such as 120°C. The PET protective film 2 heated by the tunnel furnace 4 is transported to the vacuum adsorption device 5 through the tunnel furnace 4.

[0035] The tunnel furnace 4 can use a chain plate line equipped with a vacuum suction cup to suck the lower surface of the PET protective film 2 using the vacuum suction cup, and drive the PET protective film 2 to move forward along the chain plate line.

[0036] like Figure 3 and 4 As shown, the vacuum adsorption device 5 includes a table 501, and a plurality of conveying rollers can be rotatably connected to the table 501, so that the heated PET protective film 2 conveyed by the tunnel furnace 4 can be moved on the table 501. A notch is provided on the surface of the table 501; a U-shaped frame 502 is fixedly connected to the lower surface of the table 501; a guide rail is connected to the upper surface of the table 501 through a fixed frame, and a vacuum box 6 with a lower opening is connected through the guide rail; the vacuum box 6 can be moved on the guide rail by connecting a driving device, such as a cylinder.

[0037] The U-shaped frame 502 is slidably connected to a top block 503 that matches the gap in the slot through a slide rail slider; the U-shaped frame 502 is fixedly connected to a telescopic device 504, which can be a cylinder or a hydraulic cylinder, etc., and the telescopic end of the telescopic device 504 is fixedly connected to the lower surface of the top block 503, and the top block 503 can be moved up and down through the telescopic device 504.

[0038] When the tunnel furnace 4 transports the heated PET protective film 2, the top block 503 is located in or at the bottom of the slot, so that the PET protective film 2 can move horizontally and cover the slot. A proximity switch or an infrared grating can be installed on the vacuum adsorption device 5 to limit the position of the PET protective film 2.

[0039] like Figure 5As shown, a lower cutting blade 505 is fixedly connected to one side of the top block 503, and the upper surface of the lower cutting blade 505 may be serrated; a sealing gasket 506 corresponding to the lower surface of the vacuum box 6 is fixedly connected to the upper surface of the top block 503;

[0040] like Figure 6 As shown, two horizontal clamps 601 are connected to the top surface of the vacuum box 6 ; and a vacuum port 603 is connected to the side wall of the vacuum box 6 .

[0041] like Figure 7 As shown, the vacuum box 6 is moved to one side of the table 501 through the slide rail, and the foam seat 1 is placed in the vacuum box 6. After the foam seat 1 is clamped by the horizontal clamp 601, the vacuum box 6 returns to the top of the slot. At this time, the top block 503 rises, and the PET protective film 2 is cut off by the lower cutting blade 505. The PET protective film 2 is squeezed onto the lower surface of the foam seat 1 and bonded by glue, which can be epoxy or polyurethane glue.

[0042] At the same time, the sealing pad 506 is in close contact with the lower surface of the vacuum box 6 to achieve sealing. The vacuum box 6 is connected to the vacuum equipment through the vacuum interface 603 to perform vacuum operation.

[0043] When vacuuming, since the foam seat 1 is provided with through holes, the PET protective film 2 is adsorbed on the lower surface of the foam seat 1, making the bonding tighter. When vacuuming, the vacuum degree of the system is ≤10Pa.

[0044] After the vacuuming is completed, the top block 503 descends, and the vacuuming box 6 moves to the side of the table 501 through the slide rail, and the processed packaging base is taken out and the foam seat 1 is put back, and the above operation is repeated.

[0045] like Figure 7 As shown, a plurality of springs 604 are welded to the top surface of the vacuum box 6; a mounting plate 605 is welded to the lower end of the plurality of springs 604; two horizontal clamps 601 are fixedly connected to the lower surface of the mounting plate 605, and the springs 604 can provide a buffer when the top block 503 is lifted, thereby preventing the foam seat 1 from being squeezed and deformed.

[0046] The outer wall of the vacuum box 6 is fixedly connected with an upper cutting blade 602 that is staggered with the lower cutting blade 505. The lower cutting blade 505 is fixedly connected to the vacuum box 6 by screws. The upper cutting blade 602 cooperates with the lower cutting blade 505 to better cut the PET protective film 2.

[0047] At the same time, the PET protective film 2 can be cut off before the top block 503 rises and contacts the lower surface of the foam seat 1, and a sponge layer is provided on the upper surface of the top block 503, so that during the squeezing process between the top block 503 and the foam seat 1, the excess PET protective film 2 in the width direction and / or the length direction of the foam seat 1 is squeezed onto the side of the foam seat 1 by the sponge, thereby improving the overall connection strength and facilitating the overall protection of the foam seat 1. The inner wall of the sealing pad 506 can also be set to a size that matches the outer wall of the foam seat 1, and the PET protective film 2 can be squeezed onto the side of the foam seat 1 for bonding through the sealing pad 506.

[0048] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0049] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A production device for a packaging base for a refrigerator, comprising a packaging base, the packaging base comprising a foam base (1), characterized in that: The foam seat (1) is obtained by processing EPS foam, and a plurality of through holes (101) are opened on the upper surface of the foam seat (1); a PET protective film (2) is attached to the lower surface of the foam seat (1); It also includes a coating device (3) for coating glue on the surface of the PET protective film (2); a tunnel furnace (4) for heating the PET protective film (2) after the glue is coated, and a vacuum adsorption device (5); The vacuum adsorption device (5) comprises a table top (501); a notch is provided on the surface of the table top (501); a U-shaped frame (502) is fixedly connected to the lower surface of the table top (501); a guide rail is connected to the upper surface of the table top (501) via a fixed frame, and a vacuum box (6) with a lower opening is connected via the guide rail; The U-shaped frame (502) is slidably connected to a top block (503) that matches the slot gap; the U-shaped frame (502) is fixedly connected to a telescopic device (504), and the telescopic end of the telescopic device (504) is fixedly connected to the lower surface of the top block (503); A lower cutting blade (505) is fixedly connected to one side of the top block (503); a sealing gasket (506) corresponding to the lower surface of the vacuum box (6) is fixedly connected to the upper surface of the top block (503); The top surface of the vacuum box (6) is connected to a plurality of horizontal clamps (601); the side wall of the vacuum box (6) is connected to an air extraction interface (603); Among them, a plurality of springs (604) are fixedly connected to the top surface of the vacuum box (6); a mounting plate (605) is fixedly connected to the lower ends of the plurality of springs (604); a plurality of horizontal clamps (601) are fixedly connected to the lower surface of the mounting plate (605); and an upper cutting blade (602) staggered with the lower cutting blade (505) is fixedly connected to the outer wall of the vacuum box (6).

2. The production device of a packaging base for a refrigerator according to claim 1, characterized in that: The PET protective film (2) has a thickness of 0.15-0.4 mm.

3. A production device for a refrigerator packaging base according to claim 1 or 2, characterized in that: The through hole (101) has a diameter of 2-5 mm.

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