A vacuum forming mold with dual cold and hot water pipelines

Abstract

The present invention relates to a vacuum forming mold with dual cold and hot water pipelines, comprising a mold mounting frame, a lower mold mounted on the mold mounting frame, an upper mold used in conjunction with the lower mold, and a lifting cylinder; wherein a vacuum cavity is formed between the lower mold and the mold mounting frame, and a plurality of vacuum channels are processed on the lower mold, and the vacuum channels are connected to the vacuum cavity; the lower mold comprises a bottom plate, a skin mounting module and a skeleton placement module arranged on the bottom plate, the skeleton placement module is arranged between the two skin mounting modules, and a cutting knife groove is provided between the skin mounting module and the skeleton placement module, a cold water pipeline is arranged at a position on the bottom plate opposite to the bottom of the skin mounting module, a heat insulation pad is arranged at a position on the bottom plate opposite to the skeleton placement module, and a hot water pipeline is arranged at the bottom of the skeleton placement module; the lifting cylinder is arranged in the vacuum cavity, and is used to lift the lower mold and cooperate with the cutter of the upper mold to complete the skin cutting. The mold can reduce heat loss and eliminate the risk of debonding.

Description

Technical Field

[0001] The invention belongs to the technical field of forming molds, and in particular relates to a vacuum forming mold with double cold and hot water pipelines. Background Art

[0002] When processing automotive interior parts, the operator needs to first place the glue-sprayed skeleton on the mold, press the start switch, and the mold will move to the molding area. At this time, the skin feeding system will transport the skin to the skin heating area, and the skin will be heated. After reaching the process temperature, the skin will be transferred to the molding area. The clamping frame in the mold will clamp the skin, and the molding area will blow air to pre-blow the skin. At this time, the lower mold will rise with the skeleton and the equipment will be vacuumed to bond the skin to the skeleton. When bonding the skin to the skeleton, the temperature of the skin is the key point for glue activation. If the temperature is insufficient, the glue activation will be unstable and there will be a risk of debonding.

[0003] At present, most of the automobile interior manufacturers will lose heat during the transfer process after the surface is heated during the vacuum adsorption process, and when encountering a cold frame, the heat will also be transferred to the frame. The large heat loss will affect the activation of the glue, causing unstable glue activation. This problem is particularly prominent in winter, affecting the bonding effect of the glue, resulting in poor effect after adsorption and the risk of debonding. Summary of the invention

[0004] In view of the above-mentioned technical problems and defects, the object of the present invention is to provide a vacuum forming mold with dual pipelines of cold and hot water. The mold adds a hot water pipeline at the bottom of the skeleton placement module to give the skeleton a thermal insulation effect, reduce heat loss, and eliminate the risk of debonding; at the same time, the pipeline at the bottom of the auxiliary forming area is passed with cold water, which is also convenient for cutting of excess skin after adsorption.

[0005] To achieve the above object, the present invention is implemented by adopting the following technical solutions:

[0006] A vacuum forming mold with dual cold and hot water pipelines, comprising a mold mounting frame, a lower mold mounted on the mold mounting frame, an upper mold used in conjunction with the lower mold, and a lifting cylinder; the improvement is that a vacuum cavity is formed between the lower mold and the mold mounting frame, a plurality of vacuum channels are processed on the lower mold, and the vacuum channels are connected to the vacuum cavity; the lower mold comprises a bottom plate, a skin mounting module and a skeleton placement module arranged on the bottom plate, the skeleton placement module is arranged between two skin mounting modules, a cutting knife groove is provided between the skin mounting module and the skeleton placement module, a cold water pipeline is arranged at a position on the bottom plate opposite to the bottom of the skin mounting module, a heat insulation pad is arranged at a position on the bottom plate opposite to the skeleton placement module, and a hot water pipeline is arranged at the bottom of the skeleton placement module;

[0007] The lifting cylinder is arranged in the vacuum chamber, the base of the lifting cylinder is fixed on the mold mounting frame, the piston rod of the lifting cylinder is fixedly connected to the bottom plate of the lower mold, and is used to lift the lower mold and cooperate with the cutter of the upper mold to complete the skin cutting.

[0008] As a preferred embodiment of the present invention, the air inlet of the lifting cylinder, the water inlet interface of the cold water pipeline, the water outlet interface of the cold water pipeline, the water inlet interface of the hot water pipeline, the water outlet interface of the hot water pipeline, and the vacuum joint connected to the interior of the vacuum chamber are all arranged on the outer wall of the vacuum chamber.

[0009] As a preferred embodiment of the present invention, a cold water pipe installation groove is processed on the bottom plate, and a hot water pipe installation groove is processed on the bottom of the skeleton placement module. The cold water pipe is arranged in the cold water pipe installation groove, and the hot water pipe is arranged in the hot water pipe installation groove.

[0010] Advantages and beneficial effects of the present invention: The molding mold provided by the present invention has a simple structure and effectively eliminates the risk of debonding. The mold adds a hot water pipeline, which insulates the skeleton placement module to prevent a large amount of heat from being transferred to the skeleton to cause heat loss and affect the activation of the glue. At the same time, the pipeline at the bottom of the skin placement module (auxiliary molding area) is passed with cold water to facilitate the cutting of excess skin after adsorption. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the vacuum forming mold of the present invention;

[0012] Figure 2 It is a schematic diagram of the overall structure of the vacuum forming mold after cutting of the present invention;

[0013] Figure 3 It is a structural schematic diagram of the bottom plate in the lower mold of the present invention.

[0014] Figure numerals: mold mounting frame 1, lower mold 2, lifting cylinder 3, vacuum chamber 4, cold water pipeline 5, insulation pad 6, hot water pipeline 7, vacuum channel 21, bottom plate 22, skin placement module 23, skeleton placement module 24, cutting groove 25. DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0016] In the description of this application, it should be noted that the terms "inside", "below", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the product of the application is usually placed when in use, which is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0017] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "disposed" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0018] See also Figures 1 to 3 The present invention provides a vacuum forming mold with dual cold and hot water pipelines, comprising a mold mounting frame 1, a lower mold 2 mounted on the mold mounting frame, an upper mold used in conjunction with the lower mold, and a lifting cylinder 3; wherein a vacuum chamber 4 is formed between the lower mold 2 and the mold mounting frame 1, and a plurality of vacuum channels 21 are processed on the lower mold 2, and the vacuum channels 21 are connected to the vacuum chamber 4; the lower mold 2 comprises a bottom plate 22, a skin mounting module 23 and a skeleton placement module 24 arranged on the bottom plate, the skeleton placement module 24 is arranged between the two skin mounting modules 23, and a cutting groove 25 is provided between the skin mounting module 23 and the skeleton placement module 24, a cold water pipeline 5 is arranged on the bottom plate 22 at a position opposite to the bottom of the skin mounting module 23, a heat insulation pad 6 is arranged on the bottom plate 22 at a position opposite to the skeleton placement module 24, a hot water pipeline 7 is arranged at the bottom of the skeleton placement module 24, and the hot water pipeline 7 at the bottom of the skeleton placement module is in contact with the heat insulation pad 6;

[0019] The lifting cylinder 3 is arranged in the vacuum chamber 4, the base of the lifting cylinder 3 is fixed on the mold mounting frame 1, and the piston rod of the lifting cylinder 3 is fixedly connected to the bottom plate 22 of the lower mold, which is used to lift the lower mold and cooperate with the cutter of the upper mold to complete the skin cutting.

[0020] The lower mold provided by the present invention may have a plurality of skeleton placement modules 24, and the plurality of skeleton placement modules 24 may be arranged in an N×N form. Figure 1Four skeleton placement modules 24 are provided in an arrangement of two rows and two columns, with two skeleton placement modules 24 and three skin placement modules 23 in each row. A hot water pipeline 7 is provided at the bottom of each skeleton placement module 24. The hot water pipelines 7 at the bottom of the two skeleton placement modules 24 are interconnected, and the hot water pipelines in two adjacent rows are also interconnected, so that the hot water pipeline 7 has only one hot water pipeline water inlet interface and one hot water pipeline water outlet interface. The hot water temperature in the hot water pipeline 7 is controlled at about 50°, which can assist the activation of the glue and will not absorb too much temperature of the skin, making the glue activation process more stable; cold water pipelines 5 are provided at positions on the bottom plate relative to the bottoms of the three skin placement modules 23, all cold water pipelines 5 are interconnected, and the cold water pipelines in two adjacent rows are also interconnected, so that the cold water pipeline 5 has only one cold water pipeline water inlet interface and one cold water pipeline water outlet interface. The cold water temperature in the cold water pipeline is controlled at about 20°, which assists in cutting off the skin in the redundant auxiliary area;

[0021] The air inlet of the lifting cylinder, the water inlet interface of the cold water pipeline, the water outlet interface of the cold water pipeline, the water inlet interface of the hot water pipeline, the water outlet interface of the hot water pipeline, and the vacuum joint connected to the inside of the vacuum chamber are all arranged on the outer wall of the vacuum chamber.

[0022] When installing the cold water pipeline 5 and the hot water pipeline 7, the present invention can process a cold water pipeline installation groove on the bottom plate 22, and process a hot water pipeline installation groove on the bottom of the skeleton placement module 24. The cold water pipeline 5 is arranged in the cold water pipeline installation groove, and the hot water pipeline is arranged in the hot water pipeline installation groove to ensure the installation effect.

[0023] The above description is only a preferred embodiment of the present application and is not intended to limit the present application.

Claims

1. A vacuum forming mold with dual cold and hot water pipelines, comprising a mold mounting frame, a lower mold mounted on the mold mounting frame, an upper mold used in conjunction with the lower mold, and a lifting cylinder; characterized in that: A vacuum cavity is formed between the lower mold and the mold mounting frame, and a plurality of vacuum channels are processed on the lower mold, and the vacuum channels are connected to the vacuum cavity; the lower mold includes a bottom plate, a skin mounting module and a skeleton placement module arranged on the bottom plate, the skeleton placement module is arranged between two skin mounting modules, and a cutting groove is provided between the skin mounting module and the skeleton placement module, a cold water pipeline is arranged at a position on the bottom plate opposite to the bottom of the skin mounting module, a heat insulation pad is arranged at a position on the bottom plate opposite to the skeleton placement module, and a hot water pipeline is arranged at the bottom of the skeleton placement module; The lifting cylinder is arranged in the vacuum chamber, the base of the lifting cylinder is fixed on the mold mounting frame, the piston rod of the lifting cylinder is fixedly connected to the bottom plate of the lower mold, and is used to lift the lower mold and cooperate with the cutter of the upper mold to complete the skin cutting.

2. A vacuum forming mold with dual cold and hot water pipelines according to claim 1, characterized in that: The air inlet of the lifting cylinder, the water inlet interface of the cold water pipeline, the water outlet interface of the cold water pipeline, the water inlet interface of the hot water pipeline, the water outlet interface of the hot water pipeline, and the vacuum joint connected to the inside of the vacuum chamber are all arranged on the outer wall of the vacuum chamber.

3. A vacuum forming mold with dual cold and hot water pipelines according to claim 1, characterized in that: A cold water pipeline installation groove is processed on the bottom plate, and a hot water pipeline installation groove is processed on the bottom of the skeleton placement module. The cold water pipeline is arranged in the cold water pipeline installation groove, and the hot water pipeline is arranged in the hot water pipeline installation groove.

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