CN2095757U

CN2095757U - Self-expansion net frame

Info

Publication number: CN2095757U
Application number: CN 91218298
Authority: CN
Inventors: 邱培毅
Original assignee: Beijing Inst Of Print Tech
Current assignee: Beijing Inst Of Print Tech
Priority date: 1991-07-20
Filing date: 1991-07-20
Publication date: 1992-02-12

Abstract

The utility model relates to a self-expansion net frame. An octagon is composed of four reels and four supporting triangles. Screw bolts penetrate through the inner cavity of the reels, a shaft head and the supporting triangles, and can be fixed by nuts. A screen net can be laid on the surfaces of the reels and can be pressed on the bottom part of the notch by pressure strips. The reels can rotate and can be fixed by screw bolts after the screen net is tensioned.

Description

Self-expansion net frame

The utility model relates to a kind of from stretching tight the net screen frame, belongs to the technical field of printing machine annex.

At present aspect the serigraphy specialty, mostly adopt a kind of screen frame of fixed size of wooden or aluminum, the net machine that is used to stretch tight utilizes viscosity gum that silk screen is bonded on the screen frame after silk screen is tightened, just can be used for printing, shortcoming is an inefficiency, consumes viscosity gum, as for some patent, the silk screen tightening device that tension force is adjustable, self-pulling type silk screen frames etc., shortcoming is mechanism's complexity, the cost height.

The purpose of this utility model is that a kind of net screen frame that stretches tight certainly will be provided, and it can overcome above-mentioned deficiency, and can avoid using stretch tight net machine and viscosity gum, can directly utilize the printing of this screen frame.

The purpose of this utility model is to realize like this.Screen frame is formed an octagonal by 4 spools and 4 supporting triangles.Spool is a tubulose, endoporus can be a screwed hole, bolt passes spindle nose, and spool and supporting triangle are after silk screen tightens, just fix with nut, spool surface is jagged, and silk screen is paved above the screen frame that the spool grade becomes, and the breach that is placed on spool with press strip is pressed in the breach bottom to silk screen again, rotating scroll is tightened silk screen, is fixed with nut again.

Fig. 1 is from the structural representation of the net screen frame that stretches tight

The A-A cutaway view of Fig. 2 accompanying drawing 1

Fig. 3 supports the cutaway view of triangle

Fig. 4 supports the side view of triangle

Now in conjunction with the accompanying drawings the structure of the net screen frame that stretches tight certainly is described in further detail.

By Fig. 1, from the net screen frame that stretches tight is an octagonal, 4 supporting triangles (1) account for four angle ends of minor face, 4 spools (3) are formed four long limits, bolt (5) passes the inner chamber of spool (3) and the supporting triangle (1) of spindle nose (4) and net end, use nut (6) to be fixed again, make each spool keep the vertical of strictness.

Fig. 2 is the A-A cutaway view of accompanying drawing 1, spool (3) is that the garden is tubular, its inner chamber can be a screw hole, its upper end jagged (7), silk screen (8) are pressed on breach (7) bottom, and the press strip width is greater than the width on breach top, so press strip can not come off out from breach, the shop during silk screen spool and spindle nose together rotate, till silk screen is tightened, and then it is fixed with bolt (5), nut (6).

Fig. 3 is the cutaway view of supporting triangle, and Fig. 4 is the side view of supporting triangle, and two centerline holes of supporting triangle (1) should keep vertical.

Compared with prior art, the utility model has following advantages from the net screen frame that stretches tight:

1, simple in structure, dependable performance, cost is low;

2, save and use stretch tight net machine and viscosity gum.

Claims

1, a kind of from stretching tight the net screen frame, it is characterized in that forming an octagonal by 4 supporting triangles (1) and 4 spools (3), bolt (5) passes the inner chamber of spool (3), and the supporting triangle (1) at spindle nose (4) and two ends uses nut (6) fixing again, spool (2) is that the garden is tubular, its upper end jagged (7) silk screens (8) are laid on spool (3) surface, use press strip (2) silk screen (8) to be pressed on the bottom of breach (7) again.

2, screen frame according to claim 1 is characterized in that the inner chamber of spool (3) is a screwed hole.