CN220075851U - Net clamping device of net stretching machine - Google Patents

Abstract

The utility model discloses a screen clamping device of a screen tensioning machine, which belongs to the technical field of screen printing screen plate processing and comprises a movable plate, wherein a supporting table is fixed at the top of the movable plate, and a movable plate is movably arranged at the top of the movable plate from left to right in sequence.

Description

Net clamping device of net stretching machine

Technical Field

The utility model relates to the technical field of screen printing screen panel processing, in particular to a screen clamping device of a screen tensioning machine.

Background

The screen stretcher, which is commonly called a hydraulic screen stretcher or an oil hydraulic screen stretcher, is mainly used for stretching a screen plate, and tightens the screen on a screen frame with a certain tension, and is an important device of a printing plate carrier. Compared with the pneumatic net stretching machine and the mechanical net stretching machine in the market, the automatic net stretching machine has the advantages of high automation degree, high production efficiency, high product quality and the like, and is simple in equipment operation, convenient to use and small in technical dependence on operators.

In the prior art, publication No.: the Chinese utility model content of CN208263651U discloses a net clamping device of a net tensioning machine, which comprises a frame, a pressing device connected with the frame and a pressing piece connected with the pressing device, wherein the pressing device comprises an air cylinder, and the pressing piece is connected with the air cylinder and is driven to lift by the air cylinder. The utility model has the advantages that the screen cloth is clamped by using the double-rod air cylinder, the clamping is reliable, the automation degree is high, and the working efficiency is improved; and one staff can finish the net clamping operation, thereby saving manpower.

According to the technical scheme, the connecting block is driven to lift the pressing piece through the air cylinder, then the pressing plate and the pressing block are driven through the clamping air cylinder to press the pressing piece, the pressing piece and the frame are used for clamping the silk screen, but the silk screen is fixed through the pressing piece, then the frame is moved, the pressing piece drives the silk screen to move and tension, and because the whole silk screen is fixed through the pressing piece, the tension of the whole silk screen is different when the silk screen is tensioned, the surface tension of the silk screen is kept basically consistent, the silk screen at a local position is required to be adjusted, the purpose of uniform overall tension is achieved through adjusting the local tension, but the traditional mesh clamping device cannot adjust the tension of the silk screen after clamping and fixing the silk screen, and the quality of tensioning of the silk screen is affected.

Disclosure of Invention

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a net clamping device of net tensioning machine, includes the movable plate, the top of movable plate is fixed with the brace table, the top of movable plate is from controlling to all moving in proper order and is provided with the fly leaf, the top of fly leaf is fixed with high accuracy cylinder, the piston rod of high accuracy cylinder is fixed with the connecting plate, one side that high accuracy cylinder was kept away from to the connecting plate bottom is fixed with the montant, the bottom of montant is fixed with the clamp plate, the top of brace table is provided with the backup pad that the cooperation clamp plate used, the clamp plate is located the top of brace table, the center department of fly leaf inlays and is equipped with the thread bush, the inner chamber threaded connection of thread bush has the lead screw, the one end of lead screw is passed through the bearing and is rotated in one side of brace table, the other end of lead screw is fixed with the carousel.

Further, baffles are fixed on two sides of the front face of the supporting table, and the bottoms of the baffles are fixed on the top of the movable plate.

Further, the limiting strips are fixed on one sides of the pressing plate and the supporting plate in opposite directions, limiting grooves which are clamped with the limiting strips are formed in one sides of the pressing plate and the supporting plate in opposite directions, and the surfaces of the limiting strips are arranged in an arc shape.

Further, fixed blocks are fixed at the front and rear positions of the two sides of the top of the movable plate, guide grooves are formed in the surfaces of the fixed blocks, limiting rods are inserted into inner cavities of the guide grooves, and two sides of each limiting rod are fixed on the surfaces of the baffle plates.

Further, the top of supporting bench is seted up flutedly, the backup pad is from left to right activity to be located the inner chamber of recess, the top of backup pad flushes with the top of supporting bench.

Further, the front end and the rear end of one side of the pressing plate and the supporting plate opposite to each other are respectively provided with a plane section, and the limiting strips are positioned between the plane sections.

Further, the front-back length of the guide groove is greater than the diameter of the limiting rod, and the front-back width of the groove is greater than the front-back width of the supporting plate.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, the connecting plate and the vertical rods are driven by the high-precision air cylinder to press down the pressing plate, so that the silk screen arranged at the top of the supporting table is fixed by the pressing plate and the supporting plate, meanwhile, the silk screen is clamped and fixed by the multi-section pressing plate and the supporting plate, one section of the silk screen can be independently adjusted, the screw rod is rotated, the screw rod drives the movable plate to move forwards and backwards through the threaded sleeve, then the movable plate drives the high-precision air cylinder and the pressing plate to move forwards and backwards, and the pressing plate and the supporting plate are clamped by the limiting strips and the limiting grooves, so that the supporting plate can be driven to synchronously move in the inner cavity of the groove, the tension of the silk screen is adjusted, the tension of the silk screen at each position after the silk screen is tensioned is ensured to be basically the same, the silk screen can be kept stable, and the surface of the silk screen is flat and smooth.

2. According to the utility model, the fixed block slides back and forth on the surface of the limiting rod through the matching of the guide grooves, so that the limiting rod can be used for limiting the movable plate to swing up and down, the stability of the high-precision air cylinder is ensured, and meanwhile, the movable plate can be moved left and right, and the position of the pressing plate is adjusted.

Drawings

Fig. 1 is a schematic perspective view of a net clamping device of a net tensioning machine according to the present utility model;

FIG. 2 is a schematic diagram of a cross-sectional side exploded perspective view of a net clamping device of a net tensioning machine according to the present utility model;

fig. 3 is a schematic perspective view of a movable plate according to the present utility model.

Reference numerals in the drawings: 1. a moving plate; 2. a support table; 3. a movable plate; 4. a high-precision cylinder; 5. a connecting plate; 6. a vertical rod; 7. a pressing plate; 8. a support plate; 9. a thread sleeve; 10. a screw rod; 11. a baffle; 12. a limit bar; 13. a limit groove; 14. a fixed block; 15. a guide groove; 16. a limit rod; 17. a groove; 18. a planar segment.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model provides a net clamping device of a net tensioning machine as shown in figures 1-3, which comprises a movable plate 1, wherein a supporting table 2 is fixed at the top of the movable plate 1, a movable plate 3 is movably arranged at the top of the movable plate 1 from left to right in sequence, a high-precision air cylinder 4 is fixed at the top of the movable plate 3, a connecting plate 5 is fixed on a piston rod of the high-precision air cylinder 4, a vertical rod 6 is fixed at one side of the bottom of the connecting plate 5 far away from the high-precision air cylinder 4, a pressing plate 7 is fixed at the bottom of the vertical rod 6, a supporting plate 8 matched with the pressing plate 7 is arranged at the top of the supporting table 2, the pressing plate 7 is positioned above the supporting table 2, a thread sleeve 9 is embedded at the center of the movable plate 3, a screw rod 10 is connected in an inner cavity thread of the thread sleeve 9, one end of the screw rod 10 rotates at one side of the supporting table 2 through a bearing, and a rotary table is fixed at the other end of the screw rod 10;

the connecting plate 5 and the vertical rods 6 are driven by the high-precision air cylinder 4 to press down the pressing plate 7, so that a silk screen arranged at the top of the supporting table 2 is fixed by the pressing plate 7 and the supporting plate 8, meanwhile, the silk screen is clamped and fixed by the multi-section pressing plate 7 and the supporting plate 8, one section of the silk screen can be independently adjusted, the screw rod 10 is rotated, the screw rod 10 drives the movable plate 3 to move back and forth through the threaded sleeve 9, then the movable plate 3 drives the high-precision air cylinder 4 and the pressing plate 7 to move back and forth, and the pressing plate 7 and the supporting plate 8 are clamped by the limiting strips 12 and the limiting grooves 13, so that the supporting plate 8 can be driven to synchronously move in the inner cavity of the groove 17, the tension of the silk screen is adjusted, the tension of the silk screen at all positions after the tension is ensured to be basically the same, the silk screen can be kept stable, and the surface of the silk screen is smooth.

Baffle 11 is fixed to the positive both sides of brace table 2, and the bottom of baffle 11 is fixed in the top of movable plate 1, through baffle 11's setting, conveniently all shelter from the both sides of movable plate 1, avoids movable plate 3 to shift out from the top of movable plate 1.

The clamp plate 7 all is fixed with spacing 12 with backup pad 8 opposite side, and clamp plate 7 and backup pad 8 opposite side have seted up with spacing 12 joint spacing groove 13, and spacing 12's surface is circular-arc setting, through spacing 12 and spacing groove 13's setting, increase silk screen and clamp plate 7 and backup pad 8's area of contact, make the silk screen by the more stable of centre gripping, ensure to carry out the tensioning to the silk screen after, the silk screen can not follow the slippage between clamp plate 7 and the backup pad 8.

The fixed block 14 is fixed in the front and back position of fly leaf 3 top both sides, guide slot 15 has been seted up on the surface of fixed block 14, and the inner chamber of guide slot 15 alternates there is gag lever post 16, and the both sides of gag lever post 16 are fixed in the surface of baffle 11, through seting up guide slot 15 on fixed block 14, and the reuse gag lever post 16 is spacing to fixed block 14, and guarantee fly leaf 3 hugs closely with fly leaf 1, prevents fly leaf 3 from rocking from top to bottom, leads to clamp plate 7 unstable, can't effectually carry out the centre gripping to the silk screen fixedly.

The recess 17 has been seted up at the top of brace table 2, and backup pad 8 is from left to right activity is located the inner chamber of recess 17, and the top of backup pad 8 flushes with the top of brace table 2, through the setting of recess 17, conveniently accomodates backup pad 8, to the restriction of backup pad 8 and brace table 2 height, ensures that the silk screen is placed at backup pad 8 and brace table 2 top level.

The front end and the rear end of the opposite sides of the pressing plate 7 and the supporting plate 8 are respectively provided with a plane section 18, the limiting strips 12 are positioned between the plane sections 18, and the plane sections 18 are arranged at the front and rear positions of the limiting strips 12 and the limiting grooves 13, so that the silk screen can be conveniently kept horizontal after being tensioned, and the silk screen is prevented from being cut off by vertical cutting force, so that the silk screen is broken.

The length of the guide groove 15 in the front and back is greater than the diameter of the limiting rod 16, the width of the groove 17 in the front and back is greater than the width of the supporting plate 8 in the front and back, and the limiting rod 16 can move flexibly in the guide groove 15 through the length of the guide groove 15, and the limiting rod can be matched with the pressing plate 7 to perform front and back displacement adjustment.

When the device is specifically used, one end of a silk screen to be tensioned is placed on the supporting table 2, then the high-precision air cylinder 4 is started to drive the connecting plate 5 to move downwards, then the connecting plate 5 drives the vertical rod 6 to squeeze the pressing plate 7, the pressing plate 7 is pressed downwards to be attached to the supporting plate 8 at the top of the supporting table 2, the limiting strip 12 is clamped and fixed with the limiting groove 13 through the guiding of the limiting strip 12, the silk screen is tensioned along with the outward movement of the moving plate 1, the tension value around the top of the silk screen is measured through the tension meter, then the local adjustment is carried out according to the tension value at the local position, the rotating turntable drives the screw rod 10 to rotate, then the screw rod 10 drives the movable plate 3 to move forwards and backwards through the thread bush 9, and meanwhile, the movable plate 3 drives the high-precision air cylinder 4 and the pressing plate 7 to move forwards and backwards, and the supporting plate 8 is synchronously driven to finely adjust the inner cavity of the groove 17 through the clamping of the limiting strip 12 and the limiting groove 13, so that the tension value around is kept basically the same.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a press from both sides net device of net machine, includes movable plate (1), its characterized in that: the top of movable plate (1) is fixed with brace table (2), the top of movable plate (1) is from a left side to the right side all activity in proper order is provided with fly leaf (3), the top of fly leaf (3) is fixed with high accuracy cylinder (4), the piston rod of high accuracy cylinder (4) is fixed with connecting plate (5), one side that high accuracy cylinder (4) was kept away from to connecting plate (5) bottom is fixed with montant (6), the bottom of montant (6) is fixed with clamp plate (7), the top of brace table (2) is provided with backup pad (8) that cooperation clamp plate (7) used, clamp plate (7) are located the top of brace table (2), the center department of fly leaf (3) is inlayed and is equipped with thread bush (9), the inner chamber threaded connection of thread bush (9) has lead screw (10), one end of lead screw (10) is rotated in one side of brace table (2) through the bearing, the other end of lead screw (10) is fixed with the carousel.

2. The net clamping device of a net tensioning machine according to claim 1, wherein: baffle plates (11) are fixed on two sides of the front face of the supporting table (2), and the bottoms of the baffle plates (11) are fixed on the top of the movable plate (1).

3. The net clamping device of a net tensioning machine according to claim 2, wherein: the limiting groove (13) clamped with the limiting strip (12) is formed in one opposite side of the pressing plate (7) and the supporting plate (8), and the surface of the limiting strip (12) is arranged in an arc shape.

4. A net clamping device for a net tensioning machine as claimed in claim 3, wherein: fixed blocks (14) are fixed at the front and rear positions of the two sides of the top of the movable plate (3), guide grooves (15) are formed in the surfaces of the fixed blocks (14), limiting rods (16) are inserted into inner cavities of the guide grooves (15), and the two sides of the limiting rods (16) are fixed on the surfaces of the baffle plates (11).

5. The net clamping device of the net tensioning machine according to claim 4, wherein: the top of brace table (2) has seted up recess (17), backup pad (8) are from left to right activity is located the inner chamber of recess (17), the top of backup pad (8) flushes with the top of brace table (2).

6. The net clamping device of the net tensioning machine according to claim 5, wherein: the front end and the rear end of one side of the pressing plate (7) and the supporting plate (8) which are opposite are respectively provided with a plane section (18), and the limiting strips (12) are positioned between the plane sections (18).

7. The net clamping device of the net tensioning machine according to claim 6, wherein: the front-back length of the guide groove (15) is larger than the diameter length of the limiting rod (16), and the front-back width of the groove (17) is larger than the front-back width of the supporting plate (8).