Auxiliary jig adaptive to screen printing curved advertising board

Abstract

The invention discloses an auxiliary jig adaptive to a screen printing curved advertising board. The auxiliary jig comprises a rack and a first driving mechanism, wherein the rack is provided with a screen printing die for carrying out screen printing on a curved surface which protrudes outwards, the rack is slidably connected with a workbench, and the first driving mechanism is used for driving the workbench to slide up and down. The workbench is located below the screen printing die. The screen printing die comprises a die frame and a silk screen fixed to the die frame, the die frame is an elastic frame capable of elastically bending and deforming, the middle of the die frame is connected with the rack, and the die frame is suspended on the rack. Pull rope motors are arranged on the portions, below the die frame, on the left and right sides of the rack. A screen printing object is placed on the workbench, the workbench carries the screen printing object to ascend and push against themiddle of the die frame, the left and right pull rope motors are connected with the left end and the right end of the die frame through ropes respectively, and the left end and the right end of the die frame are pulled downwards respectively, so that the die frame is bent and presses the screen printing object along the top curved surface of the screen printing object, the auxiliary jig is automatically adaptive to screen printing of different curved surfaces, consumables of the die frame are reduced, and the requirement for printing of various small-batch screen printing objects is met.

Description

【Technical field】 [0001] The invention relates to an auxiliary fixture for a self-adaptive screen printing curved surface billboard. 【Background technique】 [0002] The advertising surface of some billboards is a convex surface structure, such as Figure 7 As shown, when printing advertising patterns and advertising text, it is necessary to make a silk screen mold with a curved surface structure corresponding to the curved surface of the billboard. The silk screen mold is usually made of rigid plates (wood, steel or Rigid plastic boards) are spliced ​​into a mold base with a fixed shape, and then fixedly connected to the screen printing screen on the arc-shaped bottom surface of the mold base. The surface corresponding to the card. During silk screen production, place the curved surface of the billboard upwards, place the screen printing mold on the curved surface of the billboard from above, and perform silk screen printing by scraping ink on the screen. Usually, one kind...

AI Technical Summary

Problems solved by technology

Each type of billboard needs to customize the formwork corresponding to its shape. The billboard manufacturing cycle is long and cannot be supplied quickly.

The production of this type of curved surface billboards is usually made in small batches of multiple types, and the consumables for the mold base are serious.

The other one is that due to the small number of billboards of the same curved surface type, manual silk screen printing is usually used, that is, the screen printing mold is manually lifted and placed on the corresponding billboard, so that the screen printing mesh is pasted on the curved surface of the billboard. and adjust the position of the screen printing mold on the billboard, then manually apply ink to the screen printing mold, and use the brush to scrape ink along the curved surface for silk screen printing. After the silk screen printing is completed, carry the screen printing mold from the billboard Down, because the screen printing molds are usually heavy, the labor intensity of the staff when moving up and down the billboards is high. In the actual screen printing, depending on the size of the screen printing mold, sometimes it takes several staff to carry the screen printing mold together.

Moreover, the ink is volatile and irritating. During production, the ink volatilizes the irritating smell into the air, and the staff usually need to wear masks. However, due to the high labor intensity during silk screen printing, the staff often need to breathe heavily. However, even wearing a mask cannot completely block the inhalation of these irritating odors, and wearing a mask will also bring discomfort to the staff when breathing vigorously.

Images