阅读说明：本技术 热压加工模具及纺织层热压包覆螺纹软管 (Hot-pressing processing die and textile layer hot-pressing cladding threaded hose ) 是由 李松俊 李响 迟奇峰 于 2018-08-24 设计创作，主要内容包括：本发明提供了一种热压加工模具,包括前模、后模、模芯和加热机构；前模底壁上设有第一凹槽,内部设有多个从外部贯穿至第一凹槽的第一通气孔；后模顶壁上设有第二凹槽,内部设有多个从外部贯穿至第二凹槽的第二通气孔；模芯包括沿轴向设置的支撑部,支撑部用于沿轴向穿设在管状结构内部,管状结构外壁上涂覆热熔胶,外部设有包覆层；合模后,第一凹槽和第二凹槽形成热压腔；采用加热机构对热压腔进行加热,并经第一通气孔和第二通气孔向热压腔充气,可将包覆层通过热熔胶热压包覆在管状结构外壁上。本发明还提供了一种采用该热压加工模具制作的纺织层热压包覆螺纹管。采用本发明的热压加工模具能够在管状结构外壁上包覆贴合性良好的包覆层。(The invention provides a hot-pressing processing die which comprises a front die, a rear die, a die core and a heating mechanism, wherein the front die is arranged on the front side of the rear die; the bottom wall of the front mold is provided with a first groove, and the interior of the front mold is provided with a plurality of first vent holes penetrating from the exterior to the first groove; the top wall of the rear die is provided with a second groove, and a plurality of second vent holes penetrating through the rear die from the outside to the second groove are formed in the rear die; the mold core comprises a supporting part arranged along the axial direction, the supporting part is used for penetrating through the inside of the tubular structure along the axial direction, the outer wall of the tubular structure is coated with hot melt adhesive, and a coating layer is arranged outside the tubular structure; after the die is closed, the first groove and the second groove form a hot pressing cavity; adopt heating mechanism to heat the hot pressing chamber to aerify to the hot pressing chamber through first air vent and second air vent, can pass through hot melt adhesive hot pressing cladding with the coating on tubular structure outer wall. The invention also provides a textile layer hot-pressing cladding threaded pipe manufactured by adopting the hot-pressing processing die. The hot-pressing processing die can coat a coating layer with good fitting performance on the outer wall of the tubular structure.)

1. A hot-pressing processing die is characterized by comprising a front die, a rear die, a die core and a heating mechanism; the bottom wall of the front mold is provided with a first groove, a plurality of first vent holes penetrating from the outside to the first groove are formed in the front mold, and the first vent holes are uniformly distributed on the side wall of the first groove; the top wall of the rear die is provided with a second groove, a plurality of second vent holes penetrating through the rear die from the outside to the second groove are formed in the rear die, and the second vent holes are uniformly distributed on the side wall of the second groove; the mold core comprises a supporting part arranged along the axial direction, the supporting part is used for being arranged in a tube cavity of the tubular structure in a penetrating mode along the axial direction, hot melt adhesive is arranged on the outer wall of the tubular structure, and a coating layer is arranged outside the tubular structure; after the front mold and the rear mold are closed, the first groove and the second groove are in butt joint to form a hot pressing cavity, the hot pressing cavity is used for accommodating a tubular structure provided with a coating layer, a heating mechanism is used for heating the hot pressing cavity, the hot pressing cavity is inflated through the first vent hole and the second vent hole, and the coating layer can be coated on the outer wall of the tubular structure through hot melt adhesive in a hot pressing mode.

2. The hot-pressing mold according to claim 1, wherein the front mold comprises a front mold panel and a front mold bottom plate arranged on the top of the front mold panel, and the rear mold comprises a rear mold panel and a rear mold bottom plate arranged on the bottom of the rear mold panel; the plurality of first vent holes are positioned in the front mould panel and penetrate from the first grooves to the position above the top wall of the front mould panel, and a first air filling channel communicated from the outside to the plurality of first vent holes is arranged on the front mould bottom plate; the plurality of second vent holes are positioned in the rear mould panel and penetrate from the second groove to the upper part of the bottom wall of the rear mould panel, and second air filling channels communicated to the plurality of second vent holes from the outside are arranged on the rear mould bottom plate.

3. The hot-pressing mold according to claim 2, wherein after the mold is closed, the front mold and/or the rear mold is provided with an air outlet channel penetrating from the outside to the hot-pressing cavity.

4. The tool of claim 3 wherein the first and second grooves abut to form a cylindrical structure when closed.

5. The hot-pressing mold according to claim 4, wherein the length of the mold core in the axial direction is greater than the length of the front mold face plate and the rear mold face plate in the axial direction of the hot-pressing cavity; and the front die panel and the rear die panel are provided with grooves for the die cores to penetrate out.

6. The hot-pressing mold according to claim 5, wherein the mold core is provided with an air exhaust tube cavity penetrating along the axial direction, third air vents penetrating from the air exhaust tube cavity to the outside are formed in the side wall of the support part, and the third air vents are uniformly distributed on the side wall of the support part.

7. A hot-pressed coated threaded hose with a textile layer, which is manufactured by using the processing die as claimed in any one of claims 1 to 6, and is characterized by comprising the threaded hose, hot melt adhesive and the textile layer; the hot melt adhesive is uniformly coated on the outer wall of the threaded hose, and the textile layer is hot-pressed on the outer wall of the threaded hose through the hot melt adhesive.

8. The hot-pressed textile-layer-coated threaded hose according to claim 7, characterized in that the threaded hose is made of thermoplastic elastomer material, which is TPU, TPE, PVC or PA.

Technical Field

The invention relates to the technical field of threaded hose processing, in particular to a hot-pressing processing die and a textile layer hot-pressing cladding threaded hose.

Background

The threaded hose is an important part in the fields of modern industry, medical use and the like, and can be used for ventilation, water passing and the like. In the prior art, materials such as plastic or silica gel can be generally adopted to manufacture the threaded hose, but for parts such as a breathing pipeline applied to a breathing device, the pipeline has the defects of poor surface touch, large noise transmission and the like.

Disclosure of Invention

The invention provides a hot-pressing processing die and a textile layer hot-pressing cladding threaded hose, and solves the problem that the adhesiveness of a textile layer cladded on the threaded hose is poor.

One object of the invention is to provide a hot-pressing processing die, which comprises a front die, a rear die, a die core and a heating mechanism; the bottom wall of the front mold is provided with a first groove, a plurality of first vent holes penetrating from the outside to the first groove are formed in the front mold, and the first vent holes are uniformly distributed on the side wall of the first groove; the top wall of the rear die is provided with a second groove, a plurality of second vent holes penetrating through the rear die from the outside to the second groove are formed in the rear die, and the second vent holes are uniformly distributed on the side wall of the second groove; the mold core comprises a supporting part arranged along the axial direction, the supporting part is used for being arranged in a tube cavity of the tubular structure in a penetrating mode along the axial direction, hot melt adhesive is arranged on the outer wall of the tubular structure, and a coating layer is arranged outside the tubular structure; after the front mold and the rear mold are closed, the first groove and the second groove are butted to form a hot pressing cavity, the hot pressing cavity is heated by a heating mechanism, the hot pressing cavity is inflated through the first vent hole and the second vent hole, and the outer wall of the tubular structure can be coated with a coating layer in a hot pressing mode.

Further, the front mold comprises a front mold panel and a front mold bottom plate arranged at the top of the front mold panel, and the rear mold comprises a rear mold panel and a rear mold bottom plate arranged at the bottom of the rear mold panel; the plurality of first vent holes are positioned in the front mould panel and penetrate from the first grooves to the position above the top wall of the front mould panel, and a first air filling channel communicated from the outside to the plurality of first vent holes is arranged on the front mould bottom plate; the plurality of second vent holes are positioned in the rear mould panel and penetrate from the second groove to the upper part of the bottom wall of the rear mould panel, and second air filling channels communicated to the plurality of second vent holes from the outside are arranged on the rear mould bottom plate.

Furthermore, after the die is closed, an air outlet channel penetrating from the outside to the hot-pressing cavity is arranged on the front die and/or the rear die.

Further, after the die is closed, the first groove and the second groove are in butt joint to form a cylindrical structure.

Further, the length of the mold core in the axial direction is greater than the length of the front mold face plate and the rear mold face plate in the axial direction of the hot pressing cavity; and the front die panel and the rear die panel are provided with grooves for the die cores to penetrate out.

Furthermore, an air exhaust tube cavity penetrating along the axial direction is formed in the mold core, third air vents penetrating to the outside from the air exhaust tube cavity are formed in the side wall of the supporting portion, and the third air vents are uniformly distributed on the side wall of the supporting portion.

The invention also provides a hot-pressing coating threaded hose with a textile layer, which is manufactured by adopting the processing mould, and comprises the threaded hose, a hot melt adhesive and the textile layer; the hot melt adhesive is uniformly coated on the outer wall of the threaded hose, and the textile layer is hot-pressed on the outer wall of the threaded hose through the hot melt adhesive.

Further, the threaded hose is made of a thermoplastic elastomer material, which is TPU, TPE, PVC or PA.

The hot-pressing processing die provided by the invention is simple in structure, and the tubular structure is supported by the die core, so that the phenomenon that the tubular structure is deformed when heated and pressurized in a hot-pressing cavity to cause the tubular structure to be not tightly attached to a coating layer in a hot-pressing mode is avoided; the hot-pressing mold provided by the invention is adopted to manufacture the textile layer hot-pressing cladding threaded hose, so that the textile layer and the outer wall of the threaded hose have good fitting property, and wrinkles or bubbles are not easy to generate.

Drawings

FIG. 1 is a first embodiment of the present invention in which a textile layer is hot-pressed to wrap a threaded hose.

FIG. 2 is a sectional view of the side wall of the screw hose covered with the hot press prevention layer according to the first embodiment of the present invention.

Fig. 3 is a schematic structural view of a hot-pressing mold according to a second embodiment of the present invention.

Fig. 4 is an assembly view of a hot press working die in a second embodiment of the present invention.

Fig. 5 is a sectional view of the second embodiment of the present invention before the thermo-compression mold is pressed to form a product.

Fig. 6 is a partially enlarged view of a position a in fig. 5.

Fig. 7 is a sectional view of a second embodiment of the invention showing a mold for hot pressing a product.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.

It should be noted that in this specification, the orientation or positional relationship indicated by "top", "bottom", "upper", "lower", and the like of the front mold above the rear mold is defined based on the orientation or positional relationship shown in the drawings, and is only for convenience of describing and simplifying the present invention, and is not intended to limit a specific orientation or positional relationship that must be unique to the device or component of the present invention.

Referring to fig. 1 and 2, a first embodiment of the present invention provides a textile layer hot-press cladding threaded hose 1, which includes a threaded hose 11 and a textile layer 12; the textile layer 12 is hot-pressed on the outer wall of the threaded hose 11 through hot melt adhesives 13; the threaded hose 11 is made of a thermoplastic elastomer material including, but not limited to, TPU, TPE, PVC, PA.

The second embodiment of the invention also provides a hot-pressing mold, wherein a coating layer is formed on the outer wall of the tubular structure through hot pressing. Referring to fig. 3 to 7, the present embodiment will describe the structure of the hot-pressing mold by taking the primary covered threaded hose 1 as an example, wherein the primary covered threaded hose comprises a threaded hose 11, a hot melt adhesive 13 uniformly coated on the outer wall of the threaded hose 11, and a textile layer 12 sleeved outside the hot melt adhesive 13.

The hot-pressing processing die comprises a front die 2, a rear die 3, a die core 4 and a heating mechanism (not shown in the figure); the front mold 2 comprises a front mold panel 21 and a front mold bottom plate 22 arranged at the top of the front mold panel 21, a first groove 211 is arranged on the bottom wall of the front mold panel 21, a plurality of first vent holes 212 penetrating from the top wall to the first groove 211 are arranged in the front mold panel, the first vent holes 212 are uniformly distributed on the side wall of the first groove 211, and a first air filling channel 221 communicated from the outside to the first vent holes 212 is arranged in the front mold bottom plate 22; the rear mold 3 comprises a rear mold panel 31 and a rear mold bottom plate 32 arranged at the bottom of the rear mold panel 31, a second groove 311 is arranged on the top wall of the rear mold panel 31, a plurality of second vent holes 312 penetrating from the bottom wall to the second groove 311 are arranged in the rear mold panel, the second vent holes 312 are uniformly distributed on the side wall of the second groove 311, and a second air inflation channel 321 communicating from the outside to the second vent holes 312 is arranged in the front mold bottom plate 32; the mold core 4 comprises a support part 41 positioned in the middle part of the axial direction, and the support part 41 penetrates through the cavity of the primary coated threaded hose along the axial direction; after the front die 2 and the rear die 3 are closed, the first groove 211 and the second groove 311 form a hot pressing cavity for accommodating the primary covered threaded hose 11; and (3) heating the hot-pressing cavity by using a heating mechanism, respectively inflating from the inlet ends of the first inflation channel 221 and the second inflation channel 321, and allowing the air to enter the hot-pressing cavity after passing through the first inflation hole 212 and the second inflation hole 312, so that the textile layer 12 on the primary coated threaded hose 11 is attached to the outer wall of the threaded hose 11 in a hot-pressing manner, and the textile layer hot-pressed coated threaded hose 1 is formed.

The invention is suitable for selecting the mold core with the outer diameter approximately equal to the inner diameter of the threaded hose, so that the mold core can support the threaded hose in the hot pressing process, and the phenomenon that the threaded hose is not tightly attached to a textile layer due to deformation under the pressure in the hot pressing process is avoided.

It should be further noted that after the front mold 2 and the rear mold 3 are closed, an air outlet channel communicated with the hot pressing cavity and the outside is further arranged in the hot pressing mold. Through setting up air outlet channel, can obtain better atmospheric pressure effect.

The present invention is not particularly limited with respect to the arrangement position of the air outlet channel. For example, through holes communicating the hot pressing cavity with the outside can be formed on the front die and/or the rear die; gaps can be reserved on the die assembly surfaces of the front die panel and the rear die panel, and an air outlet channel is formed in the die assembly process. In this embodiment, a first slot 214 is formed in the bottom wall of the front mold panel 21 and communicates with the first groove 211 from the outside; a second slot 214 communicated with the second groove 311 from the outside is formed on the top wall of the rear mold panel 31; when the front mold 2 and the rear mold 3 are closed, the first open groove 214 and the second open groove 314 form an air outlet channel on the hot-pressing mold.

The hot-pressing mold provided by the embodiment is simple in structure and suitable for manufacturing the coating layer on the outer wall of the tubular structure through a hot-pressing method. For the threaded hose with the unsmooth outer wall structure, the coating layer can be tightly attached to the outer wall of the threaded hose.

The application is not particularly limited with respect to the mounting position of the heating mechanism. In this embodiment, the heating mechanisms include two heating mechanisms, which are respectively disposed on the top of the front mold base 22 and the bottom of the rear mold base 32.

Further, the cross sections of the first groove 211 and the second groove 311 along the axial direction are in a matched semicircular shape, so that the hot pressing cavity is in a cylindrical structure, and the cylindrical radius is larger than the outer diameter of the primary coated threaded hose; and when the mold core 4 is arranged in the hot pressing cavity, the mold core and the hot pressing cavity are coaxially arranged. This solution enables a pressure equalization to be applied at each position of the woven layer.

Further, a third groove 213 communicated with the plurality of first vent holes 212 is arranged on the top wall of the front mold panel 21, when the front mold bottom plate 22 is fixedly connected to the top of the front mold panel 21, a first accommodating cavity is formed between the third groove 213 and the bottom wall of the front mold bottom plate 22, and an outlet end of the first air inflation channel 221 is communicated with the first accommodating cavity; a fourth groove 313 communicated with the plurality of second vent holes 312 is formed in the bottom wall of the rear mold panel 31, when the rear mold base plate 32 is fixedly connected to the bottom of the rear mold panel 31, a second accommodating cavity is formed between the fourth groove 313 and the top wall of the rear mold base plate 32, and the outlet end of the second air charging channel 321 is communicated with the second accommodating cavity. This scheme makes the inflation gas get into the hot-pressing chamber from a plurality of first inflation holes and the second inflation hole uniformly to further make the pressure of applying in weaving layer each position department more balanced.

Further, an air exhaust hole penetrating through the support portion 41 along the axial direction is formed in the mold core 4, third air vents 411 penetrating from the air exhaust hole to the outside are uniformly formed in the side wall of the support portion 41, and a through hole penetrating through the air exhaust hole is formed at any one end or two ends of the mold core 4. Through when through-hole and aspirating hole outwards bleed, the negative pressure that its produced can make threaded hose 11 closely laminate on the 41 outer walls of supporting part of mold core 4 to can make hot pressing in-process threaded hose structure more firm, the effect of hot pressing cladding weaving layer is better.

In this embodiment, an air exhaust cavity 42 passing through the mold core 4 along the axial direction is provided in the mold core, and third vent holes 411 passing through the air exhaust cavity 42 to the outside are uniformly provided on the side wall of the support portion 41. The mold core provided by the scheme is simple in structure and easy to process.

In the present invention, the axial length of the mold core may be greater than or less than the axial length of the front mold plate and the rear mold plate along the mold core. In this embodiment, the length of the mold core 4 is greater than the axial length of the front mold plate 21 and the rear mold plate 31 along the mold core 4, and the bottom wall of the front mold plate 21 and the top wall of the rear mold plate 31 are provided with slots for the mold core to pass through. This scheme is favorable to the fixed of mold core position in the hot pressing intracavity.

In another embodiment of the present invention, the front mold and the rear mold are of an integral structure. Compared with the first embodiment, the scheme has the advantage that the mold is complex to manufacture.

The method for processing the textile material hot-pressing coated threaded hose by adopting the hot-pressing processing die provided by the first embodiment comprises the following steps of:

coating hot melt adhesive on the outer wall of the threaded hose, and arranging a textile layer outside the hot melt adhesive to form a primary coated threaded hose;

sleeving a primary coating threaded hose on the supporting part of the mold core, and arranging the primary coating threaded hose in a hot pressing cavity;

after die assembly, a heating mechanism is adopted to heat the hot pressing cavity, air is filled into the hot pressing cavity, the air exhaust cavity is exhausted from two ends, and the textile layer is coated on the outer wall of the threaded hose in a hot pressing mode.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.