Airbag forming tool with debonding layer

Abstract

The application provides a gas bag forming tool with a debonding layer and relates to the technical field of rubber vulcanization tools. The device comprises a cover plate and a bottom plate, the cover plate and the bottom plate are detachably connected, a heat insulation shell is abutted between the cover plate and the bottom plate, a debonding layer is attached to the inner side wall of the heat insulation shell, a silica gel pad is provided with an arc-shaped surface at the bottom and a flat surface at the top, the arc-shaped surface is attached to the debonding layer at the bottom of the heat insulation shell, the bottom of the gas bag is attached to the flat surface at the top of the silica gel pad, and the outer periphery of the gas bag is attached to the heat insulation shell. Overall, the application has simple structure and production process, effectively guarantees the surface quality of the gas bag and reduces the demolding difficulty.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of rubber vulcanization tooling, in particular to a gas bag forming tool with a debonding layer. BACKGROUND

[0002] In the existing rubber vulcanization and processing scheme, a. a gas bag is used for vulcanization forming in combination with an inner type surface; the front end cover debonding area is not in close contact with the integrated gas bag, and after demolding, the rubber is bulged and debonded, the surface quality is unqualified, and the qualified rate of the finished product is low; b. a bottom layer cylinder segment is first molded, then laid and finally vulcanized by using a gas bag for pressurization; the process is complicated, the mold opening and pressing cost is high, the cycle is long, and there is still a debonding risk at the transition between the cylinder segment and the bottom layer; c. a hot press tank is used for forming; the hot press tank forming quality is good, but the surface of the side in contact with the vacuum bag is rough, there are wrinkles of auxiliary materials such as the vacuum bag, and the rubber into the hot press tank has limitations, is limited to straight cylinder segment heat insulation, and this process is not suitable for the front segment top cover; in addition, the cost of the hot press tank is relatively high.

[0003] Therefore, there is an urgent need for a gas bag forming tool with a debonding layer, which has a simple structure and production process, effectively ensures the surface quality of the gas bag and reduces the demolding difficulty. SUMMARY

[0004] The application provides a gas bag forming tool with a debonding layer, which solves the technical problems of complicated production structure and process and poor surface quality in the prior art. The preferred technical solutions in the many technical solutions provided by the application can produce many technical effects, which are described in detail below.

[0005] To achieve the above-mentioned purposes, the application provides the following technical solutions.

[0006] The application provides a gas bag forming tool with a debonding layer, which includes:

[0007] The cover plate and the bottom plate are detachably connected between the cover plate and the bottom plate;

[0008] The heat insulation shell abuts between the cover plate and the bottom plate;

[0009] The debonding layer is arranged in close contact on the inner side wall of the heat insulation shell;

[0010] The silica gel pad block is provided with an arc-shaped surface at the bottom and a plane at the top, the arc-shaped surface is in close contact with the debonding layer at the bottom of the heat insulation shell, the bottom of the gas bag is in close contact with the plane at the top of the silica gel pad block, and the outer periphery of the gas bag is in close contact with the heat insulation shell.

[0011] The side is in close contact with the debonding layer.

[0012] Preferably, the application further includes:

[0013] a plug, the plug is arranged at the center of the inner bottom of the heat insulation shell, the debonding layer is attached to the surface of the plug, and the plug and the debonding layer extend into the arc-shaped surface of the silica gel pad.

[0014] Preferably, the application further comprises:

[0015] a groove, the groove is arranged at the center of the arc-shaped surface of the silica gel pad, and the plug and the debonding layer are arranged in the groove.

[0016] Preferably, the application further comprises:

[0017] a compression ring, the top end of the heat insulation shell is sleeved at the bottom of the compression ring, the bottom end surface of the compression ring is in contact with the top end surface of the debonding layer, the top of the air bag is attached to the inner side of the compression ring, and the compression ring is abutted between the top of the heat insulation shell and the bottom surface of the cover plate.

[0018] Preferably, the application further comprises:

[0019] an upper protrusion, the upper protrusion is arranged on the bottom surface of the cover plate, the top of the compression ring is sleeved on the upper protrusion, and the top of the compression ring is coaxially arranged with the upper protrusion.

[0020] Preferably, the application further comprises:

[0021] a lower protrusion, the lower protrusion is arranged on the top surface of the bottom plate, and the bottom of the heat insulation shell is sleeved on the lower protrusion and coaxially arranged with the lower protrusion.

[0022] Preferably, the application further comprises:

[0023] a vacuum air nozzle, the vacuum air nozzle is fixedly connected to the top of the air bag and penetrates through the cover plate, and the vacuum air nozzle is in communication with a gas source.

[0024] Preferably, the application further comprises:

[0025] a plurality of screw rods, the screw rods are screw-connected to the circumferential sides of the cover plate and the bottom plate at equal intervals.

[0026] In the technical scheme, the conventional air bag with an attached inner surface is divided into two parts: a flat-bottomed air bag and a silica gel pad, the silica gel pad is arranged in the bottom of the heat insulation shell and attached to the bottom of the heat insulation shell, and the bottom of the air bag is attached to the flat surface on the top of the silica gel pad; the bottom of the silica gel pad is arranged as an arc-shaped surface, which mainly serves to improve the attachment of the silica gel pad to the bottom of the heat insulation shell and avoid rubber debonding. Overall, the structure and production process of the application are simple, which effectively ensures the surface quality of the air bag and reduces the demolding difficulty. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below only constitute some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0028] Fig. 1 is a schematic diagram of the appearance of the forming tool of the present application;

[0029] Fig. 2 is a schematic diagram of the cross-section of the forming tool of the present application.

[0030] In the figure, 1 is a cover plate; 2 is a screw rod; 3 is an adiabatic shell; 4 is a bottom plate; 5 is a vacuum air nozzle; 6 is a pressing ring; 7 is a debonding layer; 8 is an air bag; 9 is a silica gel pad; 10 is a plug; 11 is an upper protruding block; 12 is a lower protruding block; and 13 is a groove. DETAILED DESCRIPTION

[0031] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described in detail below. Obviously, the described embodiments only constitute some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0032] Reference Figs. 1-2 The specific embodiments of the present application provide an air bag forming tool with a debonding layer, comprising:

[0033] The cover plate 1 and the bottom plate 4 are detachably connected between the cover plate 1 and the bottom plate 4.

[0034] The adiabatic shell 3 abuts between the cover plate 1 and the bottom plate 4.

[0035] The debonding layer 7 is attached to the inner side wall of the adiabatic shell 3.

[0036] The silica gel pad 9 has an arc-shaped bottom and a flat top, the arc-shaped bottom is attached to the debonding layer 7 at the bottom of the adiabatic shell 3, the flat top of the silica gel pad 9 is attached to the bottom of the air bag 8, and the outer periphery of the air bag 8 is attached to the adiabatic shell 3.

[0037] In the existing processing scheme: a. using the bladder vulcanization molding with the inner surface: the front head debonding area is not enough to contact with the integrated bladder, and the rubber bulges and debonds after demolding, the surface quality is unqualified, and the qualified rate of finished products is low; b. bottom cylinder segment is first molded and then pasted, and finally vulcanized using bladder pressure: the process is complicated, and the mold opening and pressing cost is high, the cycle is long, and there is still a risk of debonding at the transition between the cylinder segment and the bottom layer; c. using hot press tank molding: the quality of hot press tank molding is good, but the surface of the side in contact with the vacuum bag is rough, there are wrinkles of auxiliary materials such as vacuum bag, and the rubber into the hot press tank has limitations, which is limited to straight cylinder segment heat insulation, this process is not suitable for front segment top cover, and the cost of hot press tank is higher. In the present application, the conventional bladder adhering to the inner surface is divided into two parts: a flat bottom bladder 8 and a silica gel pad 9, the silica gel pad 9 is placed in the bottom of the heat insulation shell 3 and adheres to the debonding layer 7 at the bottom of the heat insulation shell 3, and the bottom of the bladder 8 adheres to the flat top surface of the silica gel pad 9. The bottom of the silica gel pad 9 is provided with an arc surface, which mainly serves to improve the adhesion of the silica gel pad 9 to the bottom of the heat insulation shell 3 and avoid rubber debonding. Overall, the structure and production process of the present application is simple, which effectively ensures the surface quality of the bladder 8 and reduces the demolding difficulty.

[0038] Further optimization scheme also includes:

[0039] Plug 10, the inner bottom center of the heat insulation shell 3 is provided with the plug 10, the debonding layer 7 adheres to the surface of the plug 10, and the plug 10 and the debonding layer 7 extend into the arc surface of the silica gel pad 9.

[0040] Groove 13, the groove 13 is provided at the center of the arc surface of the silica gel pad 9, and the plug 10 and the debonding layer 7 are adapted in the groove 13.

[0041] The main function of setting the plug 10 is to position the silica gel pad 9, and the arc surface at the bottom of the silica gel pad 9 is adapted to the bottom of the heat insulation shell 3, so that the surface is more adhered, smooth and firm after curing.

[0042] Further optimization scheme also includes:

[0043] Compression ring 6, the top end of the heat insulation shell 3 is sleeved at the bottom of the compression ring 6, the bottom end surface of the compression ring 6 is in contact with the top end surface of the debonding layer 7, the top of the bladder 8 is adhered to the inner side of the compression ring 6, and the compression ring 6 is in contact between the top of the heat insulation shell 3 and the bottom surface of the cover plate 1.

[0044] The use of the compression ring 6 helps to avoid the displacement of the debonding layer 7 during the vulcanization process, which affects the surface quality of the bladder 8 and the demolding.

[0045] Further optimization scheme also includes:

[0046] Upper convex block 11, the bottom surface of the cover plate 1 is provided with the upper convex block 11, the top of the compression ring 6 is sleeved on the upper convex block 11, and is coaxially arranged with the upper convex block 11.

[0047] The upper convex block 11 helps the top of the heat-insulating shell 3 to be vertically arranged with the cover plate 1, avoids the influence of skewing on vulcanization and molding effect.

[0048] Further optimization scheme, also includes:

[0049] Lower convex block 12, the top surface of the bottom plate 4 is provided with the lower convex block 12, the bottom of the heat-insulating shell 3 is sleeved on the lower convex block 12, and is coaxially arranged with the lower convex block 12.

[0050] The upper convex block 11 helps the bottom of the heat-insulating shell 3 to be vertically arranged with the bottom plate 4, avoids the influence of skewing on vulcanization and molding effect. The upper convex block 11 helps the installation precision between the cover plate 1, the heat-insulating shell 3 and the bottom plate 4, and improves the molding quality.

[0051] Further optimization scheme, also includes:

[0052] Vacuum air nozzle 5, the vacuum air nozzle 5 is fixedly communicated at the top of the air bag 8, and passes through the cover plate 1, the vacuum air nozzle 5 is communicated with the air source.

[0053] The vacuum air nozzle 5 is communicated with the external vacuum air source, so that the air bag is inflated in the heat-insulating shell while being heated to vulcanize the rubber;

[0054] Further optimization scheme, also includes:

[0055] Screw rod 2, a plurality of screw rods 2 are screw-connected at the circumferential side of the cover plate 1 and the bottom plate 4.

[0056] The processing process of the application: the silica gel pad 9 is vertically placed in the laid heat-insulating shell 3, and the rubber is not extruded or screwed into the heat-insulating shell 3; the flat-bottomed air bag 8 is placed in the heat-insulating shell 3, and the compression ring 6 is covered; the bottom plate 4 and the cover plate 1 are installed in place, and the corresponding fasteners are locked (full-thread screw rod 2 and nut); the vacuum air nozzle 5 is connected with the external vacuum air source system, so that the air bag 8 is inflated in the heat-insulating shell 3 while being heated to vulcanize the rubber; the mold is removed in the reverse order of installation, that is, the nut is loosened, the screw rod 2 is removed, the cover plate 1 and the bottom plate 4 are removed, and then the air bag 8 and the silica gel pad 9 are removed. The above tooling has low cost, the materials of the bottom plate 4, the cover plate 1 and the compression ring 6 can be metal such as aluminum and steel, the silica gel pad 9 is simple to make, the raw materials are widely available, and according to the corresponding proportioning, the operability is strong, and it can be used for batch production.

[0057] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like expressed in this paper indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" and the like are only for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] In the description herein, it should also be noted that unless otherwise expressly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0059] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An air bag forming tool with a debonding layer, characterized by, The utility model relates to a kind of vacuum insulation panels, including: Cover plate (1) and bottom plate (4), detachable connection between the cover plate (1) and the bottom plate (4); Thermal insulation shell (3), the thermal insulation shell (3) is butted between the cover plate (1) and the bottom plate (4); Debinding layer (7), the debinding layer (7) is attached on the inner side wall of the thermal insulation shell (3); Silica gel pad (9), the bottom of the silica gel pad (9) is provided as arc surface, the top of the silica gel pad (9) is provided as plane, the arc surface is attached with the debinding layer (7) of the bottom of the thermal insulation shell (3), air bag (8) bottom is attached on the top plane of the silica gel pad (9), the outer periphery of the air bag (8) is attached with the thermal insulation shell (3); Also including: Plug (10), the inner side bottom center of the thermal insulation shell (3) is provided with the plug (10), the debinding layer (7) is attached on the surface of the plug (10), the plug (10) is extended into the arc surface of the silica gel pad (9) with the debinding layer (7); Also including: Groove (13), the groove (13) is opened in the arc surface center of the silica gel pad (9), the plug (10) and the debinding layer (7) are fitted in the groove (13); Also including: Press ring (6), the top end of the thermal insulation shell (3) is sleeved in the bottom of the press ring (6), the bottom end surface of the press ring (6) is in contact with the top end surface of the debinding layer (7), the top peripheral side of the air bag (8) is attached in the inner side of the press ring (6), the press ring (6) is butted between the top of the thermal insulation shell (3) and the bottom surface of the cover plate (1); Also including: Upper lug (11), the bottom surface of the cover plate (1) is provided with the upper lug (11), the top of the press ring (6) is sleeved on the upper lug (11), and is coaxially arranged with the upper lug (11); Also including: Lower lug (12), the top surface of the bottom plate (4) is provided with the lower lug (12), the bottom of the thermal insulation shell (3) is sleeved on the lower lug (12), and is coaxially arranged with the lower lug (12).

2. The bladder forming tooling with debonding layer of claim 1, wherein, Also including: Vacuum air nozzle (5), the vacuum air nozzle (5) is fixedly communicated at the top of the air bag (8), and passes through the cover plate (1), the vacuum air nozzle (5) is communicated with gas source.

3. The bladder forming tooling with debonding layer of claim 1, wherein, Also including: Screw rod (2), several screw rods (2) are equidistantly screwed on the peripheral side of the cover plate (1) and the bottom plate (4).

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