CN2278543Y - Screen clamping device for multilayer screening machine - Google Patents

Abstract

The utility model relates to a screen clamping device for multilayer screening machines. The utility model comprises a screening machine body, a positioning frame ring, a screen and tightening rings. The utility model is characterized in that the positioning frame ring is a circular ring-shaped body which is provided with alternate convex edges and concave edges; the positioning frame ring is arranged between the upper layer and the lower layer of the screening machine body; the interior of the groove of the frame ring is provided with a tightening ring for tightening the screen; the connection ends of the tightening rings are respectively provided with lap pieces; the lap pieces are provided with screw bolt locking holes which are used for locking the screen; two semi-circular outer frame sleeves are straddled among the upper layer and the lower layer of the screening machine body and the positioning frame rings, and are locked by screw bolts. The utility model has the advantages of simple structure, uniform screen stress and convenient assembly and disassembly. Besides, the service life of the screen can be prolonged and the work efficiency of the sieving machine can be improved.

Description

The screen holding device of multiple field screening machine

The utility model belongs to fixedly a kind of device of the screen cloth of screening machine, particularly be the levels screen cloth fixture of multiple field screening machine.

Traditional screening machine mainly is to utilize mode of vibration to make the screening thing constantly being classified according to multilayer screen cloth mesh size respectively in the vibration, makes the screening thing of same thickness be distinguished classification.This screen cloth uses through long-time vibration, and regular meeting causes screen cloth to take place loose or damages, and when screen cloth damages to a certain degree, must substitute renewal, to guarantee the screening quality.But traditional screening machine complex structure when changing screen cloth, is difficult to rapid disassembly and assembly.

Screen cloth clamping location engages with the fastening packing of screw or with spot welding traditionally in addition, and the former assembling is wasted time and energy, and processing cost height, because it is long that sieve breakage is changed man-hour, cause screening operation to interrupt, and the screw closure place then there is powder to leak to influence cost if any becoming flexible; Engage with spot welding, be about to screen cloth and weld in the lump extremely, so not only can't substitute screen cloth merely, even need whole group to abandon, and desire is compiled tightly quite difficulty with screen cloth during spot welding, causes screen cloth not have enough holding powers, and the breakage of caving in easily takes place with fixture.

The purpose of this utility model is to overcome the deficiency of prior art and screen holding device that a kind of multiple field screening machine is provided, this installs easy accessibility, screen cloth can obtain very average clamping strength, and can make sealed being integral of the place's of bridging suit of two joint screening machine bodies and clamping devices, reach the tight Shu Dingwei purpose of screen cloth.

The purpose of this utility model realizes by following means.

A kind of screen holding device of multiple field screening machine, comprise screening machine body, posting ring, screen cloth, lock ring ring, it is characterized in that the posting ring is one to have the alternate ring bodies of concavo-convex edge, this frame ring is located between the levels screening machine body, be provided with the lock ring ring that fastening screen cloth is used in the frame ring-side wall chase, the link of lock ring ring respectively is provided with bonding jumper, offers lockhole on the bonding jumper for the bolt-through locking.Above-mentioned screening machine is formed by the folded from bottom to top frame of most layer screening machine bodies, is provided with the posting ring between each levels screening machine body, supports a screen cloth in advance at the posting ring surface, and the diameter of screen cloth is greater than the posting ring diameter.Every layer of screen cloth all has different thicknesses size mesh, unnecessary screen cloth is tightened in the chase of posting ring-side wall adjacent spaces, the a branch of lock ring ring of each suit in posting ring chase utilizes the bonding jumper on the lock ring ring link again, revolves lock and the banding screen cloth that contracts gradually with bolt-through.

The utility model also can be integral the place of bridging of levels screening machine body and posting ring with two semicircle outside framework suits, two semicircle frameworks are provided with a bonding jumper, and on each bonding jumper, offer screw, sealed relatively with bolt, make the interior bent face of its outside framework inwardly tighten clamping, can make screen cloth obtain very average clamping strength, the powder that can avoid screening thing simultaneously leaks in screening process accidentally.

Also can support another screen cloth in the posting ring madial wall chase of the present utility model, make the screen cloth that is installed on the posting ring form bilayer, for this reason, be provided with the lock ring ring in the chase of above-mentioned posting ring inwall and expanded tight bundle, the link of this lock ring ring respectively is provided with bonding jumper, bonding jumper is provided with the relative size lockhole, and one bonding jumper big lock hole is provided with threading path, and the bolt of arranging in pairs or groups is pushed up a link opening and outwards supports.Utilize double-deck screen cloth can prolong screen life-span, must often not change assembling, reduce cost.

The utility model modern design, rational in infrastructure, simple structure, the stressed even and disassembly and assembly convenience of screen cloth utilizes double-deck screen cloth can prolong screen life-span, must often not change assembling, guarantees during screening machine vibration work that the powder of screening thing can not leak, and reduces cost.

Introduce the utility model specific embodiment below in conjunction with accompanying drawing.

Fig. 1 is the utility model embodiment exploded perspective view.

Fig. 2 tightens garter spring part stereogram among the utility model embodiment.

Fig. 3 is an expansion garter spring part stereogram among the utility model embodiment.

Fig. 4 opens a screen cloth and the generalized section of a branch of lock ring ring of arranging in pairs or groups for the central shoring of the utility model posting.

Fig. 5 opens two screen clothes for the central shoring of the utility model posting and tightens, expands the generalized section of garter spring.

Fig. 6 is the utility model clamping device partial structurtes schematic diagrames.

Shown in Figure 2 as Fig. 1, at 1 of the levels screening machine body certain position frame ring 2 that bridges, support a screen cloth 3 in advance in posting ring 2 surfaces, equal each suit one lock ring ring 4 at chase 21 places of posting ring 2 adjacent spaces that lateral wall is, utilize the link bonding jumper 41 of lock ring ring 4, the lockhole of offering on 42 411,421, with bolt 43 run through revolve the lock and the banding screen cloth 3 that contracts gradually, use two semicircle outside frameworks 51 again, after 52 places of bridging with levels screening machine body 1 and posting ring 2 give suit and are integral, with bolt 53 with above-mentioned two semicircle outside frameworks 51, the bonding jumper 511 at 52 (being 5 among Fig. 6) two ends, screw is sealed relatively on 521, makes its outside framework 51,52 interior bent face inwardly tightens clamping (as shown in Figure 6).

Claims (3)

1. the screen holding device of a multiple field screening machine, comprise screening machine body [1], posting ring [2], screen cloth [3], lock ring ring [4], it is characterized in that posting ring [2] is one to have the alternate ring bodies of concavo-convex edge, this frame ring [2] is located between the levels screening machine body [1], be provided with the lock ring ring [4] of fastening screen cloth [3] usefulness in frame ring [2] the sidewall chase [21,21 '], the link of lock ring ring [4] respectively is provided with bonding jumper [41,42], offers lockhole [411,421] on the bonding jumper [41,42] and runs through locking for bolt [43].

2. screen holding device as claimed in claim 1, the place of bridging that it is characterized in that levels screening machine body [1] and posting ring [2] is set with two semicircle outside frameworks [51,52], two semicircle outside frameworks [51,52] are provided with a bonding jumper [511,521], and on each bonding jumper [511,521], offer screw, sealed relatively by bolt [53].

3. screen holding device as claimed in claim 1 or 2, it is characterized in that lock ring ring [4] link wherein the lockhole [411] of a bonding jumper [41] be processed with screw thread, with the threaded engagement on the bolt [43].

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