CN2792763Y - Frame with fast net stretch - Google Patents

Abstract

The utility model relates to a net frame with a fast net stretch, which belongs to the field of printing and is suitable for a net printing in the printing industry. The utility model adopts the major technique that a rectangular pipe is made into a square frame with four corners, and a box for assembly is fixed by screws and screw holes on the bottom of the box. A hole and a fixing shaft head are arranged on the box, and a rotation shaft head is arranged in the hole. The end of the rotation shaft head is provided with a ratchet, and a groove and a shaft shoulder are arranged on the rotation shaft head. A spring stop ring is arranged in the groove, and the rotation shaft head is axially fixed on the box by the spring stop ring and the shaft shoulder in the groove. The rotation shaft head and the fixing shaft head are respectively provided with a winding shaft which is provided with a full-long winding groove. The screws are fixed in the hole on the box, and are respectively provided with a rotating ratchet pawl and a steel wire torsion spring. Four side surfaces of the square frame are respectively provided with a groove which corresponds to the full-long winding groove on the winding shaft. The utility model has the advantages of rapid stretching, time saving, labor saving and high quality for stretching.

Description

The screen frame that stretches tight fast and net

(1) technical field: the utility model belongs to print field.

(2) background technology: stereotype, hectographic printing, resin plate printing are arranged in the printing industry, and these printing great majority print on machine.Also have a kind of printing wire mark, wire mark is exactly one deck net, and net is to be tightened on the frame, and frame is called screen frame.Present screen frame is generally all made of wooden, and net is to follow closely on frame with nail, and net is tightened, and this way is time-consuming really, and the net that stretches tight is of low quality, influences printing quality.Therefore, the existing network technology that stretches tight will be improved.

(3) summary of the invention: the purpose of this utility model is exactly to design a kind of screen frame of the net that can stretch tight fast.Major technique is in four angles of square frame made from rectangular tube, fix the box of an assembling usefulness with the screw hole at the bottom of screw and the box, porose and fixing spindle nose on the box, the rotation spindle nose is housed in the hole, the turning cylinder head end has been done ratchet, also have the groove and the shaft shoulder on the spindle nose, check ring is housed in the groove, utilize that check ring and the shaft shoulder are axially fixed on the box rotating spindle nose in the groove,, have elongated volume groove on the spool rotating spindle nose and fixedly on the spindle nose spool being housed, in hole on the box, be fixed with screw, rotatable ratchet and steel wire torsion spring are housed on the screw, have groove in four sides of square frame, corresponding with the elongated volume groove on the spool.The utility model major advantage is: stretch tight net fast, time and labour saving, and the net quality height that stretches tight.

(4). description of drawings: Fig. 1 is a schematic top plan view of the present utility model, Fig. 2 is the front elevational schematic of workbin (5), Fig. 3 is the schematic side view of Fig. 2, Fig. 4 is the schematic top plan view of Fig. 2, Fig. 5 is the front elevational schematic of part ratchet (6), and Fig. 6 is the schematic side view of Fig. 5, and Fig. 7 is that the C of square frame (1) is to schematic diagram, Fig. 8 is the A-A sectional schematic diagram, and Fig. 9 is the B-B sectional schematic diagram.

(5) specific embodiment: make square frame (1) with the mode that rectangular tube cuts and welds, make (1) four angle of square frame with rectangular tube in, screw hole (24) at the end is fixed the box (5) of an assembling usefulness with screw (25) and box (5), porose on the box (15) and fixing spindle nose (12), lining, hole (15) is equipped with and is rotated spindle nose (2), the turning cylinder head end has been done ratchet (23), rotate and also have the groove and the shaft shoulder on the spindle nose, check ring (3) is housed in the groove, utilize that check ring and the shaft shoulder are axially fixed on the box rotating spindle nose in the groove, rotating spindle nose and fixedly on the spindle nose spool (4) is being housed, have elongated volume groove (9) on the spool, lining, hole on box (11) is fixed with screw (7), rotating ratchet (6) and steel wire torsion spring (8) are housed on the screw, four sides at square frame (1) have groove (20), and are corresponding with the elongated volume groove (9) on the spool (4).Spool (4) can rotate, and can be net (10) rolling-in and smooth, be owing to have the key (26) and the inner hole key slot of spool (4) to match on the rotation spindle nose (2), the axle head that rotates spindle nose (2) has interior hexagonal hole (27), need only in the interior hexagonal hole and inject turning tool, rotate spindle nose and just can rotate, so spool (4) is also with regard to rotation, the endoporus of spool (4) is enclosed within fixedly on the spindle nose (12).Net (10) rolling-in at first cuts net (10), then square frame (1) four flank side surface groove (20) is passed through on four limits of net (10), elongated volume groove (9) lining of four frontier fortresses of net advance spool (4), rotate four and rotate spindle nose (2), just can be tight net volume, and can be flat net (10) volume.After net (10) rolling-in fixedly is to fix with rotating ratchet (23) on the spindle nose (2) and the ratchet (6) that is contained on the screw (7).Ratchet (6) can be gone up ratchet (23) engagement and break away from rotating spindle nose (2), and engagement is by the elastic force of steel wire torsion spring (8) ratchet to be pressed to ratchet, so ratchet and ratchet engagement just can be fixing net (10), the net that fixes is with regard to the energy printing work.When adjusting net (10) or unclamping net (10), will make ratchet break away from ratchet.It is owing to made spanner (18) on the ratchet (6) that ratchet (6) breaks away from, and has oblong aperture (14) on the box (5), and spanner is contained in oblong aperture (14) lining.Because oblong aperture has been arranged, spanner is contained in the inside again, so as long as one lift spanner (18), just ratchet (6) is lifted and break away from ratchet, so spool (4) just can backward rotation, has just unclamped net (10).Have hole (16) on the ratchet (6), this hole is cartridge screw (a 7) usefulness, has hole (17) on the ratchet, the hole is a usefulness that is used for adorning steel wire torsion spring (8), the head of torsion spring is crooked, and crooked head is contained in lining, hole (17), so ratchet (6) has the power of pressing to ratchet (23).Done cramp bar (19) on the ratchet (6), the effect supporting ratchet of cramp bar is used.Four jiaos of sides at square frame (1) have assembly technology hole (22), the part on the box (5) be give assemble earlier after, by hole (22) box-packed to square frame (1) lining.The oblong aperture (14) of box (5) overlaps with the assembly technology (22) of square frame (1) side, so people's hand can be moved the spanner (18) on the ratchet (6) to.Fixedly have hole (13) on the spindle nose (12), this hole also is the assembly technology hole, is used for cartridge screw (7) usefulness.

Claims (4)

1, a kind of screen frame of the net that stretches tight fast, it is characterized in that: make in (1) four angle of square frame with rectangular tube, fix the box (5) of an assembling usefulness with screw (25) and box (5) end screwing hole (24), porose on the box (15) and fixing spindle nose (12), the spindle nose (2) of rotation is equipped with in lining, hole (15), the turning cylinder head end has been done ratchet (23), rotate and also have the groove and the shaft shoulder on the spindle nose, check ring is housed in the groove, utilize that check ring and the shaft shoulder are axially fixed on the box rotating spindle nose (2) in the groove, rotating spindle nose and fixedly on the spindle nose spool (4) is being housed, have elongated volume groove (9) on the spool, lining, hole on box (11) is fixed with screw (7), and rotating ratchet (6) and steel wire torsion spring (8) are housed on the screw, four sides at square frame (1) have groove (20), and are corresponding with the elongated volume groove (9) on the spool (4).

2, the screen frame of a kind of net that stretches tight fast according to claim 1 is characterized in that: rotating has the key (26) and the inner hole key slot of spool (4) to match on the spindle nose (2), the axle head that rotates spindle nose (2) has interior hexagonal hole (27).

3, the screen frame of a kind of net that stretches tight fast according to claim 1, it is characterized in that: make spanner (18) on the ratchet (6), have oblong aperture (14) on the box (5), spanner is contained in oblong aperture (14) lining.

4, according to the screen frame of the described a kind of net that stretches tight fast of claim 1, it is characterized in that: have hole (17) on the ratchet, the head of steel wire torsion spring (8) is housed in the hole.

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