CN209965536U - Seamless cladding hose - Google Patents

Abstract

The utility model provides a seamless cladding hose, includes the tube core layer, and the printing has pattern or character on the tube core layer, tube core layer outside is provided with the coating, 360 seamless even claddings of coating are outside at the tube core layer, the coating is transparent or translucent setting. The utility model provides an its 360 seamless claddings of coating layer of cladding hose can prevent that the tube core layer from being corroded outside the tube core layer, so can keep the intensity that the outward appearance is pleasing to the eye and can increase tubular product for a long time.

Description

Seamless cladding hose

Technical Field

The utility model relates to a packing trade, in particular to seamless cladding hose.

Background

Cosmetics are materials manufactured for beautifying the skin, hair, fingernails of people and maintaining the health of users, and include makeup-based skin care cosmetics, makeup cosmetics, hair cosmetics, perfumes, air fresheners, and the like. These various kinds of cosmetics are contained in various kinds of cosmetic containers depending on the state of contents (for example, solid, liquid, powder or gel type, etc.) or the purpose of use. For example, for solution type cosmetics such as skin care or hair care, which are usually placed in a hose, it can be easily squeezed out for use.

The traditional coating layer is made by adopting a coating layer attaching method, namely a layer of glue is brushed on the surface, the bonding strength is low, the coating layer is provided with gaps during pipe making, the burst strength of the pipe is low, the inner pipe core layer is easy to corrode and damage during use, and patterns or characters can be printed on the pipe core layer sometimes, so that the patterns and characters are easy to corrode, and the attractiveness is affected.

SUMMERY OF THE UTILITY MODEL

To the above problem, the utility model provides a cladding hose, 360 seamless claddings of its cladding layer are outside the tube core layer, including cladding inlayer and cladding skin, can prevent that inside tube core layer from being corroded, so can be permanent keep the outward appearance pleasing to the eye, and can effectively increase the bursting strength of tubular product, increase of service life.

The utility model provides a seamless cladding hose, including the tube core layer, the printing has pattern or character on the tube core layer, the tube core layer outside is provided with the coating, the seamless even cladding of coating is in the outside a week of tube core layer, and the coating is transparent or translucent setting.

Preferably, the cladding layer comprises an inner cladding layer and an outer cladding layer, the inner cladding layer being located between the outer cladding layer and the die layer.

Preferably, the outer cladding layer is a PE material layer, and the outer cladding layer is bonded to the core layer by the inner cladding layer.

Preferably, the thickness of the coating layer is 0.2mm-0.5 mm.

Preferably, the thickness of the coating layer is 0.25-0.35 mm. .

Because the utility model provides a seamless cladding hose, 360 seamless even claddings of its coating outside the tube core layer, there is not gap and outward appearance smooth, can prevent that inside tube core layer from being corroded, so can be permanent keep the outward appearance pleasing to the eye, and can effectively increase the bursting strength of tubular product, increase of service life.

The present invention will be further described with reference to the accompanying drawings.

Drawings

FIG. 1 is an end view of a preferred embodiment seamless clad hose of the present invention;

FIG. 2 is a longitudinal cross-sectional view of a preferred embodiment seamless clad hose of the present invention;

FIG. 3 is a view showing an overall structure of a coating apparatus according to a preferred embodiment of the present invention;

FIG. 4 is a structural view of a coating mechanism according to a preferred embodiment of the present invention;

FIG. 5 is an enlarged view of the discharge hole position according to the preferred embodiment of the present invention;

FIG. 6 is a schematic diagram of a preferred embodiment of the bus bar of the present invention;

FIG. 7 is a cross-sectional view of a preferred embodiment of the feed mechanism of the present invention;

FIG. 8 is a view showing the structure of a screw according to a preferred embodiment of the present invention;

reference numerals: 1 tube core layer, 2 coating layers, 21 coating inner layers, 22 coating outer layers, 3 power devices, 31 speed change gear boxes, 4 feeding mechanisms, 41 feed hoppers, 42 charging barrels, 43 screw rods, 431 spiral grooves, 44 inner coating layer feeding mechanisms, 45 outer coating layer feeding mechanisms, 5 heating rings, 6 vacuum mechanisms, 61 vacuum die heads, 62 vacuum pumps, 63 vacuum tubes, 7 coating mechanisms, 71 confluence plates, 711 first-stage flow channels, 712 second-stage flow channels, 713 third-stage flow channels, 714 inner coating layer confluence plates, 715 outer coating layer confluence plates, 72 baffle plates, 73 lip die heads, 74 inner die heads, 75 die holes and 76 discharge holes.

Detailed Description

Referring to fig. 1-2, a seam-coated hose, which is used in the field of cosmetic packaging, includes a core layer 1, a tube core layer 1 is generally made of an aluminum plastic tube, and the tube core layer 1 is printed with patterns, characters and the like, such as logo, written instructions and the like of a company. The outside of the tube core layer 1 is provided with a coating layer 2, the coating layer 2 is transparent or semitransparent, and printed patterns and characters can be clearly transmitted out, so that people can see the patterns and characters clearly. The thickness of the coating layer 2 is 0.2mm-0.5mm, preferably 0.25-0.35mm, the extrusion hand feeling of the pipe is good, and the permeability of the coating layer is also good. The cladding layer 2 can play a role in protecting the inner tube core layer 1 and can also increase the strength of the cladding tube to a certain extent. Cladding 2360 seamless even cladding is outside 1 of tube core layer, utilizes hot melt extrusion molding principle to cover the outside of tube core layer 1 with 360 of PE material, forms cladding 2 promptly. Because cladding 2360 seamless even cladding is on 1 surface of core layer, does not have the seam, so can prevent that foreign matter from invading core layer 1, can protect inside core layer 1, prevent that the pattern and the character of printing on the core layer 1 from damaging in the use, the life of extension cladding pipe makes it also can keep better pleasing to the eye degree after using for a long time.

Referring to fig. 1-2, in a preferred embodiment, the clad layer 1 includes an inner clad layer 21 and an outer clad layer 22, the inner clad layer 21 is adhesively secured to the core layer 1, and the outer clad layer 22 is adhesively secured to the inner clad layer 21. In a preferred embodiment, the outer cladding layer 22 is made of PE material, in particular high pressure PE material, and the inner cladding layer 21 is made of low pressure PE material and PE type adhesive, i.e. the inner cladding layer 21 can bond the outer cladding layer 22 to the core layer 1. The inner covering layer 21 is made of low-pressure PE or PE type adhesive, because only PE can be bonded with sister property, otherwise, the bonding strength is weak, and is easy. Therefore, the cladding inner layer 21 and the cladding outer layer 22 can be firmly bonded together and bonded on the pipe core layer, so that the pipe core layer 1 can be protected better, and the strength of the pipe can be increased. The outer coating layer 22 is made of high-pressure PE, and the coating pipe has soft performance and better permeability, so that good hand feeling and good appearance of the coating pipe can be guaranteed. The PE material has good thermoplasticity and adhesiveness, the permeability of the colorless PE material is good, the PE material is heated and melted, a barrel-shaped film is formed by extruding a barrel, 360-degree seamless cladding is performed on the surface of the material, the melted PE material has high adhesive property, the PE material can be firmly bonded on the surface of the material, the plasticity is good, the smoothness of the cladding layer 2 can be ensured, the inner layer adopts low-pressure PE, the strength of the high-pressure PE is better, the inner layer can be better protected by the better protection pipe core layer 1, the strength of the pipe can be increased, the cladding outer layer 22 adopts high-pressure PE, the permeability is better due to the softer performance, and the good hand feeling and the good appearance of the cladding pipe can be ensured.

Referring to fig. 1-8, the manufacturing method of the seamless cladding hose of the present invention includes the following steps:

(1) printing patterns or characters on the surface of the tube core layer 1, performing printing or gold stamping treatment on the surface of the tube core layer 1, and printing the characters and the patterns on the tube core layer 1.

(2) And winding the printed material into a pipe with corresponding size. The material can be cut according to the required size and then wound into a pipe with the required size.

(3) And welding the interface of the tube core layer 1 by using a high-frequency welding machine. After the tube core layer is formed by winding, the tube core layer 1 at the interface is overlapped to a certain extent, the PE material at the tube interface is fused by utilizing the high-frequency heating conduction principle, and then the gap at the interface is welded and filled well by utilizing a pressing heating mode. After the welding, the welding seam can be cooled by utilizing the circulating water pipe, and the cooled pipe can be further shaped, so that the cylindrical shape of the pipe is more regular.

(4) And (4) coating the pipe prepared in the step (3) with a coating layer 2. Firstly, preparing a coating material, wherein the outer coating layer is made of a PE material, the inner coating layer is made of an adhesive and the PE material, and then the coating material is heated and melted in a charging barrel at high temperature, wherein the heating temperature is 150-250 ℃, the specific heating temperature can be 185 ℃ or 195 ℃ or 200 ℃, and the fluidity and thermoplasticity of the material are good at the temperature. And then, the coating material is rotationally pressed into the coating mechanism by utilizing the two screws, and the coating material is extruded into a film with the thickness of about 0.3mm under the action of the coating mechanism to be coated on the surface of the pipe to form a coating layer 2. The coated pipe can be further cooled.

(5) And (5) cutting to obtain a finished product. And cutting the coated pipe into finished products with different sizes and lengths according to the requirements.

Referring to fig. 3-8, in a preferred embodiment, the coating device comprises a power device 3, a feeding mechanism 4, a heating mechanism, a vacuum device 6 and a coating mechanism 7. The power device 3 is a motor, a motor shaft is connected with a driving belt pulley, the driving belt pulley is in belt transmission connection with a driven belt pulley, the driven belt pulley drives a speed change gear located in a speed change gear box 31, and the speed change gear is in transmission connection with the feeding mechanism 4. The feeding mechanism 4 comprises a charging barrel 42 and a screw 43 positioned in the charging barrel 42, a spiral groove 431 is arranged on the screw 43, a feeding hopper 41 is also arranged at the upper part of the charging barrel 42, the mixed coating material can be added to the feeding mechanism 4 through the feeding hopper 41, and a speed change gear is in transmission connection with the screw 43. The coating mechanism 7 is connected to the feeding mechanism 4, the charging barrel 42 is communicated with the coating mechanism 7 through a connecting pipeline, and the coating material is conveyed to the coating mechanism 7 through a screw 43. The heating mechanism comprises heating rings 5, the heating rings 5 are coated outside the feeding mechanism 4 and the coating mechanism 7, the plurality of heating rings 5 are coated outside the material cylinder 42 and the bus plate 71, the coating material can be melted by heating the heating rings 5, the hot-melted coating material enters the spiral groove 431, the hot-melted coating material can rotate and flow forwards in the material cylinder 42 along with the spiral groove 431 under the driving of the screw 43, a pressure detection device (not shown) is arranged at the outlet of the material cylinder 42, the liquid flow pressure of the coating material at the outlet of the material cylinder 42 can be detected, the liquid flow pressure can be adjusted by adjusting the rotating speed of the screw 43, the amount of the coating material entering the coating mechanism 7 is adjusted, and the purpose of controlling the thickness of the coating layer is achieved. The heating mechanism also comprises a temperature control system which can control and detect the heating temperature. The vacuum device 6 is connected to the coating mechanism 7, the vacuum device 6 comprises a vacuum die head 61 and a vacuum pump 62, the vacuum die head 61 is fixedly connected with the coating mechanism 7, and the vacuum pump 62 is communicated with the vacuum die head 61 through a vacuum pipe 63. The vacuum pump 62 can realize that a certain vacuum degree is formed in the coating mechanism 7 by pumping, and the coating material can be tightly attached to the tube core layer 1 to be coated during coating, so that the coating material can be well attached. The coating mechanism 7 comprises a bus bar 71, a die hole 75 is formed in the bus bar 71, and the die hole 75 is communicated with the vacuum die head 61. The coating mechanism 7 further comprises a flow baffle plate 72, a lip die head 73 and an inner die head 74, wherein the flow baffle plate 72 is fixedly connected with the flow collecting plate 71, the lip die head 73 is fixedly connected with the flow baffle plate 72, the lip die head 73 and the flow baffle plate 72 are also provided with die holes 75, the lip die head 73 is communicated with the flow baffle plate 72 through the die holes 75, the inner die head 74 is positioned in the die holes 75, the inner die head 74 penetrates through the flow collecting plate 71, the flow baffle plate 72 and the lip die head 73, a gap is reserved between the inner die head 74 and the flow baffle plate 72, and one end of the inner die head 74 is communicated with the vacuum die head 61. During coating, the tube core layer 1 to be coated enters the inner die head 74 from the vacuum die head 61, a discharge hole 76 is arranged between the inner die head 74 and the lip die head 73, and a coating material flows out from the discharge hole 76 to coat the hose. And a runner groove is formed in the bus board 71 and is communicated with the feeding mechanism 4, and the coating material flows to the surface of the inner die head 74 from the runner groove, flows out through a discharge hole 76 between the inner die head 74 and the lip die head 73 and is coated on the tube core layer 1. The runner groove comprises a primary runner 711, a secondary runner 712 and a tertiary runner 713, the primary runner 711 is communicated with the feeding mechanism 4, the tail end of the primary runner 711 is communicated with the two secondary runners 712, the tail end of the secondary runner 712 is communicated with the two tertiary runners 713, and the tertiary runner 713 is communicated with the discharge hole 76, namely, after the cladding material enters the bus bar 71, four outlets are formed when the cladding material flows out of the bus bar 71, and the runners are annularly arranged on the bus bar 71 due to certain pressure generated by the pushing of the cladding material by the screw 43, so that the cladding material also rotates to a certain extent when the cladding material flows out, and due to the existence of the vacuum degree in the inner die head 74 during cladding, the uniformity of cladding can be well guaranteed, and the condition that the cladding material is uneven or even has gaps is not easy to occur.

Referring to fig. 4-6, in the preferred embodiment, the ends of the tertiary flow channels 713 are located on a circle centered at the center of the manifold plate 71 and evenly distributed around the circle. The primary flow channel 711 is communicated with the charging barrel 42 through a pipeline, the coating material enters the primary flow channel 711 from the charging barrel 42 under the pushing of the screw 43, the tail end of the primary flow channel 711 is divided into two secondary flow channels 712 in opposite directions, the tail end of the secondary flow channel 712 is divided into two tertiary flow channels 713, the secondary flow channel 712 and the tertiary flow channels 713 are annular on the bus plate 71, the tertiary flow channels 713 are divided into two layers, two outer layers of the tertiary flow channels 713 extend in opposite directions respectively, and one of the outer layers of the tertiary flow channels 713 extends in a direction parallel to the other tertiary flow channel 713 when the tail end of the tertiary. That is, the flow channel is finally divided into four tertiary flow channels 713, the tail end of the tertiary flow channel 713 gradually shrinks and the depth gradually becomes shallow, that is, an outlet end similar to a tail is formed, the tail ends (i.e., the outlet ends) of the four tertiary flow channels 713 are located on a circle with the center of the bus bar 71 as the center of the circle, and the tertiary flow channels 713 are uniformly distributed on the circle. Namely, the distance between the coating material flowing out from the four tertiary runners 713 and the inner die head 74 is equal, and the coating material flowing out is uniformly distributed around the inner die head. Thus, under the balanced liquid pressure provided by the screw 43, the coating material flows out through the discharge hole 76 formed between the inner die head 74 and the lip die head 73, and is tightly attached to the periphery of the tube core layer 1 to be coated under the action of vacuum in the inner die head 74, and the coating material is uniformly coated on the periphery of the tube core layer 1 due to the adhesive in the coating material.

Referring to fig. 3-6, in a preferred embodiment, the bus plates 71 include fixedly connected inner cladding bus plates 714 and outer cladding bus plates 715, the feed mechanism 4 includes an inner cladding feed mechanism 44 and an outer cladding feed mechanism 45, and the inner cladding bus plates 714 and outer cladding bus plates 715 are in communication with the inner cladding feed mechanism 44 and outer cladding feed mechanism 45, respectively. The power device 3 is also divided into two sets, and respectively provides power for the inner cladding layer feeding mechanism 44 and the outer cladding layer feeding mechanism 45. An inner cladding manifold 714 is located at one end of the vacuum die 61 and an outer cladding manifold 715 is fixedly attached to the baffle 72. The outer cladding layer bus plate 715 is fitted to the inner die head with a gap formed therebetween, and the inner cladding material flows out from the gap, passes through the gap between the baffle plate 72 and the inner die head 74 along the inner die head 74, and flows out from the discharge hole 76 between the inner die head 74 and the lip die head 73. The outer cladding material passes through the gap between the baffle 72 and the inner die 74 along the inner die 74 and also exits through the discharge opening 76 between the inner die 74 and the lip die 73. The center of the bus bar 71 is taken as a circle center, the tail ends of the three-level flow channels 713 on the bus bar 71 are located on a circle, the diameter of the circle where the tail ends of the three-level flow channels 713 on the inner cladding layer bus bar 714 are located is smaller than that of the circle where the tail ends of the three-level flow channels 713 on the outer cladding layer bus bar 715 are located, namely when the cladding material flows out of the three-level flow channels 713, the outer cladding material is located on the outside, the inner cladding material is located on the inside, the inner and outer layers of the cladding material can be kept under the action of vacuum, and double-layer cladding of the.

The utility model provides an its 360 seamless claddings of coating layer of cladding hose outside the tube core layer, so the outward appearance is pleasing to the eye and can protect the tube core layer, prevents effectively that inside pattern, characters from being corroded.

The present invention has been described in terms of embodiments, but not limitations, and other variations of the disclosed embodiments, as would be readily apparent to one skilled in the art, are intended to be included within the scope of the present invention as defined in the following claims, in view of the description of the present invention.

Claims (5)

1. The utility model provides a seamless cladding hose, includes the tube core layer, its characterized in that, it has pattern or character to print on the tube core layer, tube core layer outside is provided with the coating, the seamless even cladding of coating is in the outside a week of tube core layer, and the coating is transparent or translucent setting.

2. The seamless clad hose of claim 1 wherein the cladding comprises a cladding inner layer and a cladding outer layer, the cladding inner layer being positioned between the cladding outer layer and the core layer.

3. The seamless clad hose of claim 2 wherein the outer cladding layer is a PE layer and the outer cladding layer is bonded to the core layer by an inner cladding layer.

4. The seamless clad hose of claim 1 wherein the cladding thickness is 0.2mm to 0.5 mm.

5. The seamless clad hose of claim 3 wherein the cladding has a thickness of 0.25 to 0.35 mm.

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