CN202087487U

CN202087487U - Coating head without scratches

Info

Publication number: CN202087487U
Application number: CN2011201840910U
Authority: CN
Inventors: 陈广辉
Original assignee: SHENZHEN BOLEX ADHESIVE PRODUCTS CO Ltd
Current assignee: SHENZHEN BOLEX ADHESIVE PRODUCTS CO Ltd
Priority date: 2011-06-02
Filing date: 2011-06-02
Publication date: 2011-12-28
Anticipated expiration: 2021-06-02

Abstract

The utility model discloses a coating head without scratches, which is used on a coating machine of hot melt adhesive, and comprises an upper die body and a lower die body which are connected with each other, wherein a hot melt adhesive channel is arranged between the upper die body and the lower die body; a rotatable round roller is arranged at the outlet of the hot melt adhesive channel and is arranged along the length direction of the coating head; and gaps are kept between the side wall of the round roll and the upper and lower die bodies. As the rotatable round roller is arranged at the outlet of the hot melt adhesive channel between the upper die body and the lower die body, impurities or bubbles in a hot melt adhesive body in the melting and flowing state can be taken away by utilizing the rotation of the round roller, so that the scratches are prevented from being left on the coating surface of a product as the impurities or the bubbles stay at the outlet of the hot melt adhesive channel and the quality of the product coated with the hot melt adhesive is greatly improved; and by the rotation of the round roller, the problem that the outlet is plugged is eradicated thoroughly, and the working time of the coating machine is prolonged as well.

Description

A kind of no scratch is coated with head

Technical field

The utility model relates to the head unit field that is coated with of hot melt coating machine, and in particular, improving what relate to is that a kind of no scratch of PUR is coated with head.

Background technology

Coating machine also claims compounding machine, is a kind ofly to utilize liquid glue as coating material, and base materials such as woven, nonwoven, film are coated with compound equipment.Also need during the coated heat melten gel to heat so that PUR is in the liquid state of fusion to being coated with head.

But, existing hot melt coating machine be coated with the head in coating process since PUR in impurity or bubble often rest on be coated with the head the exit, tend to stay long scratch or cut at the coating surface of coated product, reduced the quality of product; Cause the impurity overheap if be coated with the head length time service, even also can cause and be coated with the fault that exit is stopped up.

Therefore, prior art still haves much room for improvement and develops.

The utility model content

The purpose of this utility model is, provides a kind of no scratch to be coated with head, can reduce scratch that stays or cut at the product coating surface, improves the PUR product quality that is coated with.

The technical solution of the utility model is as follows: a kind of no scratch is coated with head, is used for the coating machine of PUR, comprises the upper die body and the lower mold body that are connected; Between upper die body and lower mold body, be provided with the PUR passage; Wherein: be provided with rotating round roller in the exit of PUR passage; The circle roller is along the length direction setting that is coated with head; All maintain the gap between the sidewall of circle roller and upper die body and the lower mold body.

Described no scratch is coated with head, and wherein: upper die body and lower mold body surface that the lateral wall of circle roller partly protrudes the PUR channel exit are provided with.

Described no scratch is coated with head, and wherein: the PUR passage in exit is arranged on the below of round roller along the tangential direction of circle roller.

Described no scratch is coated with head, and wherein: upper die body is provided with regulating tank, and regulating tank is along the length direction setting that is coated with head; Regulating tank is provided with set screw, and set screw vertical adjusting groove is provided with.

Described no scratch is coated with head, and wherein: the cross section of PUR passage has fairshaped surface texture.

Described no scratch is coated with head, and wherein: the PUR passage is from being provided with the bifurcated guiding gutter more than the two-stage at least between import department to the exit.

A kind of no scratch provided by the utility model is coated with head, because the PUR channel exit between upper die body and lower mold body has adopted rotating round roller, utilize the rotation of circle roller to take away impurity or the bubble in the hot melt colloid under the melt-flow state, avoided staying scratch or cut, improved the PUR product quality that is coated with greatly because of the coating surface that its outlet place that rests on the PUR passage causes at product; And thoroughly stopped to stop up the problem of outlet by the rotation of circle roller, also prolonged the working time of coating machine.

Description of drawings

Fig. 1 is that the utility model does not have the cross-sectional view that scratch is coated with head.

Fig. 2 is that the utility model does not have the stereogram that scratch is coated with head.

The specific embodiment

Below with reference to accompanying drawing, the specific embodiment of the present utility model and embodiment are described in detail, described specific embodiment in order to explain the utility model, is not to be used to limit the specific embodiment of the present utility model only.

A kind of no scratch of the present utility model is coated with head, is used for the coating machine of coated heat melten gel, and no scratch is coated with the no scratch of head and is coated with one of specific embodiment of head, as shown in Figure 1, comprises by screw fixedly connected upper die body 110 and lower mold body 120; Between upper die body 110 and lower mold body 120, be provided with PUR passage 123, promptly in the both sides up and down of this PUR passage 123 or be provided with heating components and parts (accompanying drawing is not shown) on every side, but to guarantee that PUR is in the flow regime of fusion in this PUR passage 123; Wherein, as shown in Figure 2, be provided with round roller 130 in the exit of PUR passage 123; The axial edge of circle roller 130 is coated with the length direction setting of head; Maintain the gap between the sidewall of circle roller 130 and upper die body 110 and the lower mold body 120; The rotatable setting in the PUR passage 123 of circle roller 130 between upper die body 110 and lower mold body 120.

Do not have in the preferred implementation that scratch is coated with head at the utility model, as shown in Figure 1, the lateral wall of circle roller 130 can partly protrude the upper die body 110 in PUR passage 123 exits and lower mold body 120 surfaces are provided with.Because circle roller 130 is in the state of rotation in the process of coating, can take out of PUR passage 123 such as impurity and bubble thus, and attached on scraper or the scraper plate.

Further, as shown in Figure 1, the PUR passage 123 in exit is along the tangential direction setting of circle roller 130; And this PUR passage 123 is positioned under the round roller 130.Can reduce the speed of PUR when flowing through the PUR passage 123 that tangentially connects circle roller 130 and the influence of flow generation under 130 pairs of molten conditions of circle roller thus as far as possible.

Further, as shown in Figure 1, upper die body 110 is provided with regulating tank 111, is used to regulate the gap size in PUR passage 123 exits, and regulates the gap length that keeps between circle roller 130 and upper die body 110 and the lower mold body 120; Regulating tank 111 is along the length direction setting that is coated with head; Regulating tank 111 is provided with set screw (being accompanying drawing 1 centerline), and set screw vertical adjusting groove 11 is provided with.

Further, as shown in Figure 1, the cross section of PUR passage 123 has fairshaped surface texture, with resistance and the generation turbulent flow of reducing friction.

Further, for the time PUR flow more all even stable, can between import department to exit, be provided with the above bifurcated guiding gutter (accompanying drawing is not shown) of two-stage at least in PUR passage 123 inside, can make the rubberised layer thickness more even thus.

Compare with the head that is coated with of hot melt coating machine in the prior art, a kind of no scratch provided by the utility model is coated with head, because the PUR channel exit between upper die body and lower mold body has adopted rotating round roller, utilize the rotation of circle roller to take away impurity or the bubble in the hot melt colloid under the melt-flow state, avoided staying scratch or cut, improved the PUR product quality that is coated with greatly because of the coating surface that its outlet place that rests on the PUR passage causes at product; And thoroughly stopped to stop up the problem of outlet by the rotation of circle roller, also prolonged the working time of coating machine.

Should be understood that; the above only is preferred embodiment of the present utility model; be not sufficient to limit the technical solution of the utility model; for those of ordinary skills; within spirit of the present utility model and principle; can be increased and decreased according to the above description, replacement, conversion or improvement, and all these increases and decreases, replacement, conversion or improve after technical scheme, all should belong to the protection domain of the utility model claims.

Claims

1. a no scratch is coated with head, is used for the coating machine of PUR, comprises the upper die body and the lower mold body that are connected; Between upper die body and lower mold body, be provided with the PUR passage; It is characterized in that: be provided with rotating round roller in the exit of PUR passage; The circle roller is along the length direction setting that is coated with head; All maintain the gap between the sidewall of circle roller and upper die body and the lower mold body.

2. no scratch according to claim 1 is coated with head, it is characterized in that: upper die body and lower mold body surface that the lateral wall of circle roller partly protrudes the PUR channel exit are provided with.

3. no scratch according to claim 1 is coated with head, it is characterized in that: the PUR passage in exit is arranged on the below of round roller along the tangential direction of circle roller.

4. no scratch according to claim 1 is coated with head, and it is characterized in that: upper die body is provided with regulating tank, and regulating tank is along the length direction setting that is coated with head; Regulating tank is provided with set screw, and set screw vertical adjusting groove is provided with.

5. no scratch according to claim 1 is coated with head, it is characterized in that: the cross section of PUR passage has fairshaped surface texture.

6. no scratch according to claim 1 is coated with head, it is characterized in that: the PUR passage is from being provided with the bifurcated guiding gutter more than the two-stage at least between import department to the exit.