Background technology
Bathtub with shirt rim more and more receives an acclaim because it is easy for installation, forms free-standing bathtub, make consumer eliminate the trouble of installation together with the skirtboard of the bathtub of band shirt rim is assembled into cylinder body by a lot of production firm.In the bathtub of numerous material, acrylic bathtub is because its moulding is abundant, lightweight, surface smoothness is good, and cheap, and is subject to liking of consumers in general.
Can there be monoblock type the cylinder body of acrylic bathtub and shirt rim, combined type, dock three class.Monoblock type refers to that cylinder body and shirt rim one monoblock acryl plates are adsorbed in shaping making on mould.Combined type refers to that cylinder body and shirt rim invest different mould with more than two pieces acryl plates respectively and make, and then becomes a bathtub with the Combination of Methods of mechanical erection.Dock refers to that cylinder body and shirt rim invest different mould with two pieces of acryl plates respectively and make, and then makes an all-in-one-piece bathtub by after cylinder body and shirt rim docking.These class methods are applicable to because of the apparent needs of bathtub but can not with the bathtub production technology of the shaping making of monoblock type (cannot the demoulding) on mould structure.
But existing butt-joint process has following shortcoming:
1, when butted line be closed-loop, butted line has arc section, when cylinder body butted line girth and shirt rim butted line inequality in circumference, easily occurs dislocation.
2, after docking, joint produces uneven phenomenon, directly affects the surface quality of acrylic product.
3, dock insecure, the easy opening in butted line place, foaming, even ftracture.
Summary of the invention
The object of the invention is to propose a kind of acrylic bathtub forming method with shirt rim, use the shaping acrylic bathtub of the method to have the basic dislocation-free of cylinder body and shirt rim, joint is smooth, and presentation quality is good, and docking firmly; After Long-Time Service, butted line place is the defect such as imperforation, bubble, even cracking also.
For reaching this object, the present invention by the following technical solutions: a kind of acrylic bathtub forming method with shirt rim, it comprises the steps:
Shirt rim and cylinder body are made in the acryl plates punching press that step 1) selects 3-4mm thick, and the butted line of wherein said shirt rim and cylinder body is closed-loop and has arc section;
Step 2) to reinforce at compress toughened fiber logical around the stamping forming shirt rim of step 1) and cylinder body, after compress toughened fiber, shirt rim and cylinder body thickness are 6-12mm;
Step 3) is by step 1) and step 2) the remaining limit that produces is removed, and polish shirt rim and cylinder body, the absolute value≤1mm of the butted line place girth difference of shirt rim and cylinder body;
Step 4) is by shirt rim and cylinder body docking, choose at butted line place and be no less than 4 some adhesive-applyings, and with being then that inclined-plane hooks the plate other end and is locked with the U-shaped frock clamp of adjustable pressure plate with one end, repeat the butted line place adhesive-applying to shirt rim and cylinder body, by shirt rim and cylinder body firmly bonding;
Gap-fill strengthening agent in shirt rim and cylinder body, after the bonding agent that step 4) applies solidifies, is installed additional support and fixes, after strengthening agent solidifies, take U-shaped frock clamp apart, and butted line place carries out rubbing down, obtain bathtub finished product by step 5); Wherein strengthening agent described in this step is according to the pure resin of 188P: stone flour: in vain starch: first ketone=1:1.06:0.007:0.007 ratio allotment form, wherein said white slurry is that the titanium dioxide solubilizer being 40 ~ 45% by mass fraction mixes the slurry made.
Preferably, described in described butted line place, shirt rim has groove, described cylinder body is provided with projection, and described groove engages after docking with described projection.
More firm in order to make wiring place connect, above-mentioned groove is preferably up-narrow and down-wide trapezoidal.
More firm in order to make wiring place connect, further preferably, the height of the degree of depth >=above-mentioned projection of above-mentioned groove.
By method provided by the invention, existing butt-joint process defect can be overcome, it is filled by the pure resin of 188P at shirt rim and cylinder body part: stone flour: starch in vain: the ratio allotment of first ketone=1:1.06:0.007:0.007 forms strengthening agent and fills and reinforce, and installs support additional and fix.In use, have good stability, butted line place is not easy to crack, long service life for bathtub prepared by use the method.
Detailed description of the invention
Technical scheme of the present invention is further illustrated by detailed description of the invention below in conjunction with accompanying drawing.Should illustrate, accompanying drawing is only exemplary illustration, does not strictly draw, clear in order to illustrate, wherein may have the amplification of local, reduces or omit.
Embodiment 1
Reference, Fig. 1 and Fig. 3, Fig. 1 are the acrylic bathtub cross sectional representation of band shirt rim provided by the invention; Fig. 3 is the acrylic bathtub side structure schematic diagram of band shirt rim provided by the invention.
The present embodiment provides a kind of acrylic bathtub with shirt rim, and by shirt rim 2 and frame, the cylinder body 1 in shirt rim 2 forms for it, and the butted line 12 of shirt rim 2 and cylinder body 1 is closed-loop, and described butted line 12 has arc section.
Its forming method is as follows:
Shirt rim 2 and cylinder body 1 are made in the acryl plates punching press that step 1) selects 3-4mm thick, and the butted line 12 of wherein said shirt rim 2 and cylinder body 1 is closed-loop and has arc section.
Step 2) to reinforce at compress toughened fiber logical around the stamping forming shirt rim 2 of step 1) and cylinder body 1, after compress toughened fiber, shirt rim 2 and cylinder body 1 thickness are 6-12mm.This step is the intensity in order to improve shirt rim and cylinder body, prevents the problems such as the insufficient strength caused because acrylic board is too thin.Certainly, in actual production, suitably can regulate thickness according to technique and working strength demand.
Step 3) is by step 1) and step 2) the remaining limit that produces is removed, and polish shirt rim 2 and cylinder body 1, the absolute value≤1mm of the butted line 12 place girth difference of shirt rim 2 and cylinder body 1.
Shirt rim 2 and cylinder body 1 are docked by step 4), choose at butted line 12 place and be no less than 4 some adhesive-applyings, and with being then locked by U-shaped frock clamp, one end of described U-shaped frock clamp is that inclined-plane hooks the plate other end with adjustable pressure plate, circulate to the butted line place adhesive-applying of shirt rim and cylinder body, by shirt rim and cylinder body firmly bonding.In the present embodiment, bonding agent is chosen as 502 glue.
In order to ensure shirt rim and the cylinder body stable connection of bathtub, without tilting the defects such as cracking, butted line 12 place gap≤0.1mm after docking.
Gap-fill strengthening agent in shirt rim 2 and cylinder body 1, after the bonding agent that step 4) applies solidifies, is installed additional support and fixes, after strengthening agent solidifies, take U-shaped frock clamp apart, and carry out rubbing down to butted line 12 place, obtain bathtub finished product by step 5); Wherein strengthening agent described in this step is according to the pure resin of 188P: stone flour: in vain starch: first ketone=1:1.06:0.007:0.007 ratio allotment form, the titanium dioxide solubilizer that described white slurry is 40 ~ 45% by mass fraction mixes the slurry made.
The skirtboard 2 of the acrylic bathtub selected in the present embodiment is in order to fixing wherein cylinder body 1, and be convenient to install and use setting, and only butted line 12 place adhesive-applying bonding can not well by both combine, be in use easy to butted line place cracking, cause skirtboard 2 to be separated with cylinder body 1.Install support additional can solve above problem by the above gap-fill strengthening agent at skirtboard 2 and cylinder body 1.And scheme be not adopt strengthening agent be according to the pure resin of 188P: stone flour: in vain starch: first ketone=1:1.06:0.007:0.007 ratio allocate form, its later strength is high, stablizes.Particularly, the powder that obtains afterwards of the building stones mineral fragmentation of stone flour feldspar; White slurry is: titanium dioxide 40-45%, WS-2 dispersant 1%, ethylene glycol 3%, water 10%, adhesive 35-40%, RT thickener 6%, and above several raw material is known raw material, all can by commercially available acquisition.
Embodiment 2
With reference to the structure enlarged diagram that accompanying drawing 2, Fig. 2 is Fig. 1-A place in the acrylic bathtub that provides of the embodiment of the present invention 2.The acrylic bathtub basic structure that the structure of the present embodiment provides is substantially identical with embodiment 1 with preparation technology, different as enlarged diagram institute is shown in, the shirt rim 2 at butted line 12 place is fluted 20, cylinder body 1 has projection 10, described groove 20 and described protruding 10 is connected together and is adhesively fixed by bonding agent.
In preparation technology, when step 1) uses acryl plates punching press to make shirt rim 2 and cylinder body 1, have groove 20 in shirt rim, butted line 12 place 2, cylinder body 1 is provided with protruding 10, during docking, groove 20 and protruding 10 can engage.
Engage firmly to make the groove 20 on skirt 2 limit and the projection 10 on cylinder body 1, groove 20 is preferably up-narrow and down-wide trapezoidal, such groove 20 and protruding 10 can well engage, and groove 20 degree of depth is generally more than or equal to protruding 10 height, arc section like this with regard to butted line 12 also can well combine, and there will not be the defects such as dislocation cracking.
Certainly, more firm in order to make wiring 12 place connect, as another embodiment provided by the invention, groove 20 is up-narrow and down-wide trapezoidal.
Certainly, more firm in order to make wiring 12 place connect, as another embodiment provided by the invention, the height of the degree of depth >=projection 10 of groove 20.
The acrylic bathtub of the band shirt rim of preparing with prior art is compared, and the bathtub tool that this forming method provides has the following advantages: cylinder body 1 dislocation-free basic with shirt rim 2, and joint is smooth, and presentation quality is good, and docking firmly; After Long-Time Service, butted line 12 place is the defect such as imperforation, bubble, even cracking also.
Below know-why of the present invention is described in conjunction with specific embodiments.These describe just in order to explain principle of the present invention, and can not be interpreted as limiting the scope of the invention by any way.Based on explanation herein, those skilled in the art does not need to pay performing creative labour can associate other detailed description of the invention of the present invention, and these modes all will fall within protection scope of the present invention.