CN204315616U

CN204315616U - A kind of tubular type pinch roller and etching cleaning machine

Info

Publication number: CN204315616U
Application number: CN201420797936.7U
Authority: CN
Inventors: 陈超; 向益双; 包文訚; 刘林华
Original assignee: WUXI DEXIN SOLAR POWER CO Ltd
Current assignee: WUXI DEXIN SOLAR POWER CO Ltd
Priority date: 2014-12-17
Filing date: 2014-12-17
Publication date: 2015-05-06
Anticipated expiration: 2024-12-17

Abstract

The utility model discloses a kind of tubular type pinch roller and the etching cleaning machine with this tubular type pinch roller, tubular type pinch roller comprises carbon-point and the tubular type pinch roller body of ring set on described carbon-point, tubular type pinch roller body is connected to form by intimate contact between pipe port and pipe port by the some pipes with same structure, the air knife that etching cleaning machine comprises the first cell body and is located in the first cell body, described air knife side is located at by tubular type pinch roller, and tubular type pinch roller is parallel with described air knife.Compared with prior art, the advantage had is the utility model: prevent silicon chip from tilting tiltedly by installing tubular type pinch roller additional, reduce silicon chip and occur abnormal in etching machine, reduction is scrapped; Tubular type pinch roller rotates with silicon chip and fits tightly with silicon chip surface, can imitate in advance and remove most of silicon chip surface raffinate, reduce fluid loss, improve air knife drying effect; Extend air knife useful life, reduce air knife replacement frequency, the power generating ratio time; Reduce the discharge of chemicals waste liquid, save processing cost.

Description

A kind of tubular type pinch roller and etching cleaning machine

Technical field

The utility model belongs to etching cleaning machine technical field, specifically relates to a kind of tubular type pinch roller and etching cleaning machine.

Background technology

Etch and make the three process in producing as solar cell, its Main Function is the N-type silicon of silicon chip surrounding after removal diffusion, places electric leakage.At present, crystal silicon solar energy battery generally adopts dry method and wet method two kinds of lithographic methods, wherein solar cell is in wet process soda acid cleaning process processed, silicon chip surface has remained a large amount of liquids can bring next cell body into, residual night can be dried up by installing air knife at cell body end, but air knife can cause the stressed tilting of silicon chip when blowing, thus causes silicon chip to walk in next cell body tiltedly, causes silicon chip to occur the situation such as card, lamination.

At present, in order to solve the problem, by installing a kind of wafer-type upper pressure wheel 1 ' before and after the air knife of etching cleaning machine, with reference to Fig. 1, wafer-type pinch roller 1 ' is composed in series by pole 3 ' by the wheel 2 ' of one group of wafer-type, the wheel 2 ' of wafer-type has certain intervals between any two, in silicon chip actual production process, air knife part exhaust vent is easy to be blocked by impurity, cause other position wind-force excessive, thus causing silicon chip also exception can occur when flowing through, on the silicon chip surface before air knife, liquor residue is serious, and essence is not dealt with problems.

Utility model content

Goal of the invention: in order to overcome the deficiencies in the prior art, the utility model provides a kind of tubular type pinch roller and the etching cleaning machine that effectively can remove silicon chip surface residual night.

Technical scheme: for solving the problems of the technologies described above, a kind of tubular type pinch roller of the present utility model, comprise carbon-point and the tubular type pinch roller body of ring set on described carbon-point, described tubular type pinch roller body is connected to form by intimate contact between pipe port and pipe port by the some pipes with same structure.

Further, described tubular type pinch roller body is by being welded to connect composition between pipe port and pipe port.

Further, described pipe is cylinder, and described carbon-point is circular carbon-point, and described carbon-point port diameter is less than described pipe port diameter, and described carbon-point height is less than the height of described pipe.

Further, described pipe manufactured materials is vinylidene fluoride homopolymer.

Further, the quantity of described pipe is 5.

Further, described pipe port tangent plane is smooth.

A kind of etching cleaning machine of the present utility model, also comprise the first cell body and be located at the air knife in described first cell body, described air knife side is located at by described tubular type pinch roller, and described tubular type pinch roller is parallel with described air knife.

Beneficial effect: the tubular type pinch roller that the utility model provides and there is this tubular type pinch roller etching cleaning machine compared with prior art, the advantage had is:

1, prevent silicon chip from tilting tiltedly by installing tubular type pinch roller additional, reduce silicon chip and occur abnormal in etching machine, reduction is scrapped;

2, tubular type pinch roller rotates with silicon chip and fits tightly with silicon chip surface, can imitate in advance and remove most of silicon chip surface raffinate, reduce fluid loss, improve air knife drying effect;

3, extend air knife useful life, reduce air knife replacement frequency, the power generating ratio time;

4, reduce the discharge of chemicals waste liquid, save processing cost.

Accompanying drawing explanation

Fig. 1 is wafer-type upper pressure wheel structural representation;

Fig. 2 is tubular type pressure roller structure schematic diagram.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described.

With reference to Fig. 2, a kind of tubular type pinch roller, comprise carbon-point 1 and the tubular type pinch roller body 2 of ring set on described carbon-point 1, described pipe 3 is cylinder, described carbon-point 1 is circular carbon-point, described carbon-point 1 port disc diameter is less than the diameter of described pipe 3 port disc, described carbon-point 1 is highly less than the height of described pipe 3, so described tubular type pinch roller body 2 is just in time enclosed within described carbon-point, described tubular type pinch roller body 2 comprises the pipe 3 that some have same structure, described tubular type pinch roller body 2 combines by connecting before and after some pipes, described tubular type pinch roller body 2 is by being connected between a pipe front end disc port with another root pipe rear end disc port, described tubular type pinch roller body 2 is jointly constituted like this by many pipes.

In the utility model embodiment, the described tubular type pinch roller body 2 comprising a carbon-point 1 and be enclosed within described carbon-point 1, described tubular type pinch roller body 2 to be welded to connect by front and back end ports by 5 pipes to combine, described pipe 3 is PVDF(fluoride homopolymer) material make pipe, PVDF material has good acidproof effect, pipe two end grain of 5 PVDF materials requires smooth, intimate contact between the connected pipe of every root PVDF pipe, by being welded to connect between the connected pipe of every root PVDF pipe, effectively most of raffinate body of silicon chip surface can be cut away, also realize the function pushed down by silicon chip simultaneously, avoid silicon chip shake under the blowing of air knife.

The utility model provides a kind of etching cleaning machine, this etching cleaning machine includes tubular type pinch roller described above, also comprise the first cell body and be located at the air knife in described first cell body, described air knife side is located at by described tubular type pinch roller, described tubular type pinch roller is parallel with described air knife, described tubular type pinch roller is positioned at silicon chip side, in silicon chip production process, described tubular type pinch roller is just in time pressed in silicon chip upper surface, silicon chip is serious at air knife front surface liquor residue, described tubular type pinch roller prevent silicon chip walk oblique while effectively can remove most of silicon chip surface raffinate, reduce fluid loss, improve air knife drying effect.

The above is only preferred implementation of the present utility model; be noted that for those skilled in the art; under the prerequisite not departing from the utility model principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims

1. a tubular type pinch roller, it is characterized in that: comprise carbon-point (1) and the tubular type pinch roller body (2) of ring set on described carbon-point (1), described tubular type pinch roller body (2) is connected to form by intimate contact between pipe port and pipe port by the some pipes (3) with same structure.

2. tubular type pinch roller according to claim 1, is characterized in that: described tubular type pinch roller body (2) is by being welded to connect composition between pipe port and pipe port.

3. tubular type pinch roller according to claim 1, it is characterized in that: described pipe (3) is cylinder, described carbon-point (1) is circular carbon-point, and described carbon-point (1) port diameter is less than described pipe (3) port diameter, and described carbon-point (1) is highly less than the height of described pipe (3).

4. tubular type pinch roller according to claim 3, is characterized in that: described pipe (3) manufactured materials is vinylidene fluoride homopolymer.

5. tubular type pinch roller according to claim 4, is characterized in that: the quantity of described pipe (3) is 5.

6. tubular type pinch roller according to claim 5, is characterized in that: described pipe (3) port tangent plane is smooth.

7. tubular type pinch roller according to claim 3, is characterized in that: the quantity of described carbon-point (1) is 1.

8. an etching cleaning machine, comprise the tubular type pinch roller described in any one of claim 1-7, it is characterized in that: also comprise the first cell body and be located at the air knife in described first cell body, described air knife side is located at by described tubular type pinch roller, and described tubular type pinch roller is parallel with described air knife.