CN204019829U - A kind of for dynamically moulding the edge-blocking device that closes casting technique - Google Patents

Abstract

The utility model relates to heat-conducting silica gel sheet production technical field, is a kind of for dynamically moulding the edge-blocking device that closes casting technique specifically.A kind of for dynamically moulding the edge-blocking device that closes casting technique, it is characterized in that: it comprises cantilever (1), spacing rotor (2), base plate (3), side plate (4) and rotating shaft (5), described side plate (4) is fixed on base plate (3), it is upper that cantilever (1) and rotating shaft (5) are fixed on side plate (4), and spacing rotor (2) is slidably set in rotating shaft (5).Its beneficial effect is: by this device, can perfectly be solved and dynamically be moulded the product side slope problem existing when explained hereafter thick product is prolonged at interflow; can not affect again and dynamically mould the continuous production that prolong at interflow simultaneously; assurance product size is accurate; the use of this edge-blocking device; make dynamically to mould and close the cropped rim charge falling of heat-conducting silica gel sheet that the tape casting produces and reduce to minimum; effectively reduce product cost, significantly reduce scrap rubber and produce, protection of the environment.

Description

A kind of for dynamically moulding the edge-blocking device that closes casting technique

Technical field

The utility model relates to heat-conducting silica gel sheet production technical field, is a kind of for dynamically moulding the edge-blocking device that closes casting technique specifically.

Background technology

Electronic and communication facility, in running, unavoidably produces heat, 2 ℃ of the every risings of electronic devices and components temperature, reliability decrease 10%; When life-span during 50 ℃ of temperature rises only has 25 ℃ of temperature rises 1/6, heat-conducting interface material is mainly used in solving the heat dissipation problem of electronic communication equipment.

At present; most domestic enterprise all adopts rolling process production heat conduction circle silica gel piece; although rolling process has realized automated production; but the auxiliary material that this technique needs is more; yield rate only has 90% left and right, and one ton of heat-conducting pad of every production, will produce the scrap rubber of 100 kilograms; no matter to Product Cost Control and environmental protection, all very unfavorable.Rolling process has higher requirement to material viscosity in addition, when compound viscosity is during lower than 250,000 CPS, product can reach 93% yields, when compound viscosity surpasses after 300,000 CPS, because sizing material row bubble difficulty, a large amount of bubbles will be wrapped up in product the inside, cause yields sharply to decline, some thick product even cannot reach 50% yields, causes a large amount of scrap rubbers.

Adopt dynamically to mould and collaborate to prolong explained hereafter heat-conducting silica gel sheet, in efficiency, be not less than rolling process, yield rate, up to 98%, also has gravity flow flat raft bubble function, and yields is not affected by slurry viscosity, significantly reduce the defective products that bubble reason causes, average yields reaches 95%, and the yields of rolling process is 40%～90%, by contrast, the tape casting has significantly reduced the generation of scrap rubber, significant to environment and society.

But close the tape casting when producing thickness and surpassing the heat-conducting silica gel sheet of 2mm using dynamically to mould, product is under Action of Gravity Field, sizing material flows laterally and forms side slope, cause product useful size to reduce, during finished product packing, side slope is fallen as defective products is cropped, causing a large amount of wastes, scrap rubber also pollutes the environment simultaneously.Side slope phenomenon is more serious on thicker product, has seriously limited dynamically to mould and has closed applying of casting technique.

For these reasons, the inventor has designed the utility model " a kind of for dynamically moulding the edge-blocking device that closes casting technique ".

Utility model content

The utility model for above-mentioned the deficiencies in the prior art technical problem to be solved is: provide a kind of and can solve side slope problem, do not affect again and dynamically mould the continuous production that prolong at interflow, assurance product size is accurate, significantly reduces dynamically moulding that rim charge cuts and closes casting technique edge-blocking device.

The utility model solves the technical scheme that its technical problem adopts:

For dynamically moulding an edge-blocking device that closes casting technique, it comprises cantilever, spacing rotor, base plate, side plate and rotating shaft, and described side plate is fixed on base plate, and cantilever and rotating shaft are fixed on side plate, and spacing rotor is slidably set in rotating shaft.

The utility model is a kind of for dynamically moulding the beneficial effect of the edge-blocking device that closes casting technique is:

By this device, can perfectly solve and dynamically mould the product side slope problem existing when explained hereafter thick product is prolonged at interflow; can not affect again and dynamically mould the continuous production that prolong at interflow simultaneously; assurance product size is accurate; the use of this edge-blocking device; make dynamically to mould and close the cropped rim charge falling of heat-conducting silica gel sheet that the tape casting produces and reduce to minimum; effectively reduce product cost, significantly reduce scrap rubber and produce, protection of the environment.

Accompanying drawing explanation

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

Fig. 1 is for dynamically moulding the structural representation that closes casting technique edge-blocking device.

Description of reference numerals:

1, cantilever 2, spacing rotor 3, base plate

4, side plate 5, rotating shaft

The specific embodiment

See figures.1.and.2, the utility model is to implement like this:

In Fig. 1, a kind of for dynamically moulding the edge-blocking device that closes casting technique, it is characterized in that: it comprises cantilever 1, spacing rotor 2, base plate 3, side plate 4 and rotating shaft 5, described side plate 4 is fixed on base plate 3, cantilever 1 and rotating shaft 5 are fixed on side plate 4, and spacing rotor 2 is slidably set in rotating shaft 5.Spacing rotor 2 self can freely rotate, also can translation in bearing direction.

Its operation principle is: counterdie passes above base plate 3, foam double faced adhesive tape is suspended on cantilever 1, by spacing rotor 2 pressure viscosity on counterdie, by moving in the horizontal direction spacing rotor 2, control the spacing of foam double faced adhesive tape, further control product width, under the traction of counterdie, foam double faced adhesive tape is bonded on counterdie continuously, form side shield and stop material to form side slope, the use of this edge-blocking device makes dynamically to mould closes the cropped rim charge falling of heat-conducting silica gel sheet that the tape casting produces and reduces to minimum.

The above, only that the utility model is a kind of for dynamically moulding the preferred embodiment of the edge-blocking device that closes casting technique, not technical scope of the present utility model is imposed any restrictions, every foundation technical spirit of the present utility model, to embodiment does above any trickle modification, equivalent variations and modification, all still belongs in the scope of the utility model technology.

Claims (1)

1. one kind for dynamically moulding the edge-blocking device that closes casting technique, it is characterized in that: it comprises cantilever (1), spacing rotor (2), base plate (3), side plate (4) and rotating shaft (5), described side plate (4) is fixed on base plate (3), it is upper that cantilever (1) and rotating shaft (5) are fixed on side plate (4), and spacing rotor (2) is slidably set in rotating shaft (5).