CN215243654U - Screen frame and screen printing device - Google Patents

Abstract

The utility model discloses a solve the problem that the needs manual regulation net frame that the printing field exists carries out the work of opening a net, a net frame and screen printing device are provided, this net frame includes strake, slide-shaft and elastic component, the strake is provided with the limit hole, one side that the limit is downthehole to be close to the net frame is provided with the backstop flange, the one end of slide-shaft is used for connecting the net frame, the other end of slide-shaft is provided with limit flange, limit flange sets up in the limit hole, the elastic component sets up in the limit hole, limit flange, elastic component and backstop flange are close to the net frame setting in proper order. The utility model discloses a net frame, its elastic component is compressed by limit flange when the dress net, and when opening the net, the elastic component resets, promotes limit flange and keeps away from the net frame to open the silk screen completely automatically.

Description

Screen frame and screen printing device

Technical Field

The utility model relates to a printing field, in particular to screen frame and screen printing device.

Background

In screen printing, the screen is fixed to the frame, which is fixed to the frame, and when printing is actually started and the frame is fixed to the frame, it is necessary to ensure that the screen is completely spread or even tensioned by the frame.

The existing screen printing device needs to manually adjust the distance between two screen frames which are opposite to each other, so as to ensure that a screen is completely opened.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a screen frame and screen printing device can open the silk screen completely automatically.

According to the utility model discloses net frame of first aspect embodiment, including strake, slide-shaft and elastic component, the strake is provided with the limit hole, be close to in the limit hole one side of net frame is provided with the backstop flange, the one end of slide-shaft is used for connecting the net frame, the other end of slide-shaft is provided with limit flange, limit flange sets up in the limit hole, the elastic component sets up in the limit hole, limit flange the elastic component reaches the backstop flange is close to in proper order the net frame sets up.

According to the utility model discloses net frame has following technological effect at least: the elastic part is compressed by the limiting flange when the screen is installed, and when the screen is opened, the elastic part resets to push the limiting flange to be far away from the screen frame, so that the screen is automatically and completely opened.

According to some embodiments of the invention, the stop flange is threaded on the other end of the slide shaft.

According to the utility model discloses a some embodiments still include linear bearing, linear bearing sets up the downthehole being close to in limit one side of screen frame, the slide-bar with linear bearing sliding connection.

According to the utility model discloses a some embodiments still include the installation sleeve, the limit hole sets up in the installation sleeve, be provided with the mounting hole on the strake, the installation sleeve is installed in the mounting hole.

According to the utility model discloses a some embodiments, the installation sleeve is kept away from the one end of screen frame is provided with spacing convex part, spacing convex part makes the installation sleeve one end is spacing in one side of strake.

According to some embodiments of the invention, the elastic member is one of a spring, an elastic plastic sleeve and a disc spring.

According to the utility model discloses a some embodiments still include the support, the support sets up the strake is kept away from one side of net frame, set up to the bearing hole on the support, the bearing hole is used for installing assembly and disassembly tools.

According to the utility model discloses a some embodiments still include frame and support, the support sets up the frame is kept away from one side of net frame, set up to the bearing hole on the support, the strake sets up on the frame, the support with one of frame is provided with the slide rail, and another is provided with the slider, the support with frame limit sliding connection, the support can the frame edge slides, makes the bearing hole is aimed at the limit hole.

According to the utility model discloses screen printing device of second aspect embodiment, including screen frame and foretell screen frame, screen frame the sliding shaft is connected screen frame.

According to the utility model discloses screen printing device has following technological effect at least: by adopting the screen frame, the screen printing device can automatically and completely open the screen when the screen is opened.

According to the utility model discloses a some embodiments, the slide-shaft the one end is provided with spacing arch, the screen frame is provided with connect the through-hole, the slide-shaft the one end is passed connect the through-hole and swing joint the screen frame, spacing arch is used for spacingly the screen frame.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic view of the overall assembly of a screen printing apparatus according to an embodiment of the present invention;

fig. 2 is a schematic sectional view showing the screen printing apparatus shown in fig. 1;

fig. 3 is an enlarged view of the screen printing apparatus shown in fig. 2 at a sectional structure a;

fig. 4 is a schematic view of the overall assembly of the screen printing apparatus shown in fig. 1 without mounting a screen;

fig. 5 is a schematic diagram showing comparison of three connection states of the limiting flange and the slide shaft of the screen printing apparatus according to the embodiment of the present invention.

Reference numerals:

an edge hole 015;

the edge strip 100, the stop flange 110, the mounting hole 120;

a sliding shaft 200, a limiting bulge 210 and a limiting flange 220;

an elastic member 300;

a linear bearing 400;

the mounting sleeve 500 and the limit convex part 510;

a bracket 600, a holding hole 610 and a slider 620;

a frame edge 700 and a slide rail 710;

a screen frame 800;

a screen 900.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the positional or orientational descriptions, such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "tip", "inner", "outer", "axial", "radial", "circumferential", etc., are the positional or orientational relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention. In the description of the present invention, the side wall means the left side wall and/or the right side wall.

In the description of the present invention, "a plurality" means two or more, "more than", "less than", "more than" and the like are understood as excluding the number, "more than", "below", "within" and the like are understood as including the number. If the description of "first" and "second" is used for the purpose of distinguishing technical features, the description is not intended to indicate or imply relative importance or to implicitly indicate the number of the indicated technical features or to implicitly indicate the precedence of the indicated technical features.

In the description of the present invention, it should be understood that "a is disposed on B" merely represents the connection relationship between a and B, and does not represent that a is above B.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. "bolted" and "screwed" are equally interchangeable. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

In the description of the present invention, it is to be understood that "a is located inside B" means that a is closer to the frame than B; "inside of a" means that a has two sides, and the side of a closer to the frame is "inside of a"; "inboard" corresponds to "outboard" and means that "inboard" is closer to the frame than "outboard"; similarly, the expressions "A is located outside B" and "A is located outside" have opposite meanings.

Referring to fig. 1 to 4, according to the utility model discloses a net frame, including strake 100, slide shaft 200 and elastic component 300, strake 100 is provided with limit hole 015, and the one side that is close to net frame 800 in the limit hole 015 is provided with backstop flange 110, and the one end of slide shaft 200 is used for connecting net frame 800, and the other end of slide shaft 200 is provided with limiting flange 220, and limiting flange 220 sets up in limit hole 015, and elastic component 300 sets up in limit hole 015, and limiting flange 220, elastic component 300 and backstop flange 110 are close to net frame 800 setting in proper order.

The edge strip 100 is provided with an edge hole 015, and a stopper flange 110 is provided inside the edge hole 015. And the slide shaft 200 is inserted into the side hole 015, one end of the slide shaft 200 is extended from the inner side of the side hole 015 to be connected with the net frame 800, and the other end of the slide shaft 200 is provided with a limit flange 220, and the limit flange 220 is positioned in the side hole 015. Between the position-limiting flange 220 and the stop flange 110, an elastic member 300 is disposed, and the elastic member 300 is limited by the position-limiting flange 220 and the stop flange 110. The sliding shaft 200 can move along the axial direction of the sliding shaft 200 in the side hole 015, when in actual use, the sliding shaft 200 is pushed to move towards the inner side, the limit flange 220 on the sliding shaft 200 moves towards the inner side along with the sliding shaft 200, the elastic element 300 between the limit flange 220 and the stop flange 110 is compressed, and at this time, one of the net frames 800 connected with one end of the sliding shaft 200 can move towards the inner side, the four net frames 800 form a rectangular frame for loading the silk screen 900, the other net frame 800 is arranged at the opposite side of one of the net frames 800, when one of the net frames 800 moves towards the inner side, the distance between one of the net frames 800 and the other net frame 800 at the opposite side is reduced, and the silk screen 900 can be installed or detached until the distance between the one of the net frames 800 is reduced to be shorter than the length of one side of the silk screen 900; after the screen 900 is mounted, the sliding shaft 200 is released, the compressed elastic element 300 starts to restore to the original shape, the elastic element 300 pushes the limiting flange 220 to move towards the outside, the sliding shaft 200 moves towards the outside along with the limiting flange 220, one of the screen frames 800 connected to one end of the sliding shaft 200 is pulled by the sliding shaft 200 to move towards the outside, the distance between one of the screen frames 800 and the other screen frame 800 on the opposite side is enlarged, the screen 900 connected between one of the screen frames 800 and the other screen frame 800 is pulled along with the enlarged distance, and finally the screen 900 is completely pulled and tensioned as the elastic element 300 continues to restore to the original shape. The existing screen frame needs manual adjustment when the screen 900 is opened, takes long time, is easy to generate errors, does not completely open the screen 900 or forgets to adjust, causes errors in subsequent printing, wastes time and raw materials, and generates printing waste products; and the utility model discloses a screen frame does not need additionally to carry out manual regulation, can open silk screen 900 completely automatically, has saved the time greatly, and has avoided the silk screen 900 that manual regulation silk screen 900 caused not to pull open the emergence of such error completely.

It is understood that the retainer flange 220 and the slide shaft 200 may be integrally formed, and the retainer flange 220 may be a separate component that is later mounted on the slide shaft 200. It is understood that, in addition to the slide shaft 200 being movable in the axial direction of the slide shaft 200 within the side hole 015, in some embodiments the slide shaft 200 may also rotate, and in other embodiments, the slide shaft 200 may not rotate. It is understood that the sliding shaft 200 and the net frame 800 may be movably connected, or may be connected by a screw connection, a snap connection, or the like. It is to be understood that "the position-restricting flange 220, the elastic member 300, and the stopper flange 110 are sequentially disposed near the screen frame 800" means "the position-restricting flange 220, the elastic member 300, and the stopper flange 110 are sequentially disposed" and "the stopper flange 110 is closest to the screen frame 800 and the position-restricting flange 220 is farthest from the screen frame 800", that is, "the position-restricting flange 220, the elastic member 300, the stopper flange 110, and the screen frame 800 are sequentially disposed". It is understood that the stopper flange 110 has a function of supporting the slide shaft 200 in addition to the function of limiting the elastic member 300. It is understood that four side strips 100 are generally provided, and the side strips 100 enclosing the net frame do not necessarily all have the side holes 015, only one side strip 100 may be provided with the side holes 015, or two, three or four side strips may all be provided with the side holes 015; it will be appreciated that a plurality of edge apertures 015 are typically provided in an edge strip 100, and that the plurality of edge apertures 015 are arranged in a linear array along the length of the edge strip 100.

Referring to fig. 1 to 5, in some embodiments of the present invention, a limit flange 220 is screwed on the other end of the slide shaft 200.

The position-limiting flange 220 is a separate component, which facilitates the production and machining of the slide shaft 200. The limit flange 220 is in threaded connection with the sliding shaft 200, and the length of the sliding shaft 200, which can extend out of the inner side of the side hole 015, or the tension on the silk screen 900 when the silk screen is completely expanded, can be adjusted by adjusting the length of the limit flange 220 screwed into the sliding shaft 200, namely the distance of the limit flange 220 penetrating into the side hole 015; referring to fig. 5, when the length of the screen 900 is shorter, the distance between the two opposite sides of the screen frame 800 needs to be shorter, so as to prevent the screen 900 from being damaged due to being pulled too tightly, at this time, the limit flange 220 can be screwed into the outer side of the edge hole 015, and under the condition that the distance between the limit flange 220 and the stop flange 110 is the same, that is, the elastic force of the elastic member 300 is the same as the force of the screen 900 being pulled, so that the distance between the other end of the sliding shaft 200 and the stop flange 110 can be shorter, that is, the distance between one end of the sliding shaft 200 and the stop flange 110 is longer, that is, the length of the sliding shaft 200 extending from the inner side of the edge hole 015 is longer, so that the screen frame 800 can be farther away from the edge strip 100, that the distance between the two opposite sides of the screen frame 800 can be closer; referring to fig. 5, when the screen frame 900 has a longer side, the screen frames 800 on two opposite sides need to be farther away to completely pull the screen frame 900, at this time, the limiting flange 220 can be screwed into the inner side of the side hole 015, under the condition that the spacing between the limiting flange 220 and the stopping flange 110 is the same, that is, the elastic force of the elastic member 300 is also the same as the tensioning force when the screen frame 900 is pulled, the distance from the other end of the sliding shaft 200 to the stopping flange 110 can be lengthened, the distance from one end of the sliding shaft 200 to the stopping flange 110 is also shortened, that is, the length of the sliding shaft 200 extending from the inner side of the side hole 015 is shortened, so that the length of the sliding shaft 200 extending from the inner side of the side hole 015 is shortened, and the screen frame 800 is pulled closer to the edge strip 100, that is, the screen frames 800 on two opposite sides are pulled away. Referring to fig. 5, when the distance between the frame 800 and the edge strip 100 is the same, that is, the length of the edge of the screen 900 is the same or the same screen 900 is the same, the limiting flange 220 and the sliding shaft 200 are in different connection states by screwing the limiting flange 220, so that the distance between the limiting flange 220 and the stop flange 110, that is, the degree of compression of the elastic member 300, and finally the amount of tension of the sliding shaft 200 on the screen 900, can be adjusted. By providing a stop flange 220 that is threadably engaged with the slide shaft 200, a greater range of screen 900 sizes can be achieved for screen frame mounting.

It is understood that the outer side of the position-limiting flange 220 may be provided with a nut structure to facilitate screwing the position-limiting flange 220; a straight groove may also be provided on the outer end face of the position-defining flange 220 to facilitate screwing of the position-defining flange 220.

Referring to fig. 1 to 4, in some embodiments of the present invention, the sliding device further includes a linear bearing 400, the linear bearing 400 is disposed in the side hole 015 near the side of the mesh frame 800, and the sliding shaft 200 is slidably connected to the linear bearing 400.

The linear bearing 400 is provided to facilitate the axial movement of the slide shaft 200, and the linear bearing 400 is provided to better support the slide shaft 200, so that the slide shaft 200 does not wear the stop flange 110 during sliding, and the friction resistance between the linear bearing 400 and the slide shaft 200 is smaller, so that the slide shaft 200 can move axially more quickly and easily. It will be appreciated that the linear bearing 400 is generally located inboard of the stop flange 110. It is understood that rolling friction may be generated between the linear bearing 400 and the slide shaft 200, and point contact may be generated between the linear bearing 400 and the slide shaft 200; the linear bearing 400 and the slide shaft 200 may be in sliding friction, and the linear bearing 400 and the slide shaft 200 may be in surface contact with each other.

Referring to fig. 1 to 4, in some embodiments of the present invention, the present invention further includes a mounting sleeve 500, the edge hole 015 is disposed in the mounting sleeve 500, the edge strip 100 is provided with a mounting hole 120, and the mounting sleeve 500 is mounted in the mounting hole 120.

When the mounting sleeve 500 is provided, the side hole 015 is the original sleeve hole of the mounting sleeve 500. The arrangement of the mounting sleeve 500 enables the edge strip 100 to be made of hollow section bars, materials are saved, the whole mechanism for achieving the automatic net stretching function on the net frame can be integrated into the mounting sleeve 500, production, mounting, maintenance and replacement of the mechanism are facilitated, and even the mechanism can be sold as a part independently.

Referring to fig. 1 to 4, in some embodiments of the present invention, the end of the mounting sleeve 500 away from the frame 800 is provided with a limiting protrusion 510, and the limiting protrusion 510 enables the end of the mounting sleeve 500 to be limited on one side of the edge strip 100.

The setting of spacing convex part 510 lets installation sleeve 500 one end by spacing one side at strake 100 for installation sleeve 500 can not be pulled into by the inside when opening the net, and the installation is more firm, and spacing convex part 510 plays the effect of a location when installation sleeve 500 simultaneously.

Referring to fig. 1 to 4, in some embodiments of the present invention, the elastic member 300 is one of a spring, an elastic plastic sleeve and a disc spring.

The spring is wide in source, easy to obtain, low in price and capable of reducing production cost; the disc spring has large load, short stroke, small required space, convenient combination and use, easy maintenance and replacement and high economic safety; the elastic plastic sleeve is not easy to generate electric sparks due to friction, and is safer to use in a production place with more printing dust.

Referring to fig. 1 to 4, in some embodiments of the present invention, the support 600 is further included, the support 600 is disposed on one side of the edge strip 100 away from the screen frame 800, a support hole 610 is disposed on the support 600, and the support hole 610 is used for installing an assembly and disassembly tool.

Assembly and disassembly tools such as the website https: as shown in html, when the silk screen 900 is installed and removed, the limiting flange 220 needs to be pushed to move inwards, at the moment, the dismounting tool penetrates through the supporting hole 610 and abuts against the side end face of the limiting flange 220, the supporting hole 610 supports the dismounting tool, a certain positioning and supporting effect can be achieved, meanwhile, the force application direction of the dismounting tool is basically the same as the axis direction of the sliding shaft 200, the force application efficiency is higher, and dismounting is more convenient. Moreover, the disassembling tool can be fixed on the bracket 600, so that the disassembling tool pushes the limiting flange 220 and keeps a pushing state, a worker does not need to apply force to the limiting flange 220 all the time, and manpower for assembling and disassembling the silk screen 900 is saved.

Referring to fig. 1 to 4, in some embodiments of the present invention, the frame further includes a frame 700 and a support 600, the support 600 is disposed on one side of the frame 700 away from the screen frame 800, a support hole 610 is disposed on the support 600, the edge strip 100 is disposed on the frame 700, one of the support 600 and the frame 700 is provided with a slide rail 710, the other is provided with a slide block 620, the support 600 and the frame 700 are slidably connected, and the support 600 can slide on the frame 700 to align the support hole 610 with the frame hole 015.

Sometimes, it is necessary to replace a different edge strip 100 on the rim 700 to accommodate different situations, such as replacing a longer edge strip 100 with a larger screen 900, or replacing a larger number of edge holes 015 with a larger screen 100 to make the screen 900 more securely attached, where the support holes 610 of the bracket 600 are aligned with the edge holes 015 of the previous edge strip 100, but may not be aligned with the edge holes 015 of the replaced edge strip 100, and it is obviously time consuming to disassemble and assemble the bracket 600. One of the frame edge 700 and the bracket 600 is provided with a sliding rail 710, and the other is provided with a sliding block 620, so that the bracket 600 can slide along the length direction of the frame edge 700, the position of the bearing hole 610 can be conveniently adjusted, and the bearing hole 610 of the bracket 600 can be very quickly and simply aligned with the edge hole 015 of the new edge strip 100. And can all slide support 600 to a side when need not using support 600, even slide out from the frame 700, vacate the space and be convenient for the staff and operate the net frame, prevent that support 600 from hindering even injuring the staff.

Referring to fig. 1 to 4, a screen printing apparatus according to an embodiment of the present invention includes a screen frame 800 and the screen frame, wherein the sliding shaft 200 of the screen frame is connected to the screen frame 800.

By adopting the screen frame, the screen printing device can automatically and completely open the screen 900 when the screen is opened, thereby saving time and improving working efficiency.

Referring to fig. 1 to 4, in some embodiments of the present invention, one end of the sliding shaft 200 is provided with a limiting protrusion 210, the screen frame 800 is provided with a connecting through hole, one end of the sliding shaft 200 passes through the connecting through hole and is movably connected to the screen frame 800, and the limiting protrusion 210 is used for limiting the screen frame 800.

Compared with the threaded connection and the buckling connection of the screen frame 800 and the sliding shaft 200, the sliding shaft 200 is movably connected with the screen frame 800, so that the screen frame 800 is more convenient to detach from the screen printing device or mount the screen frame 800 on the screen printing device. The limiting protrusion 210 enables the sliding shaft 200 to drive the screen frame 800 to move together when moving outwards, so as to achieve the function of automatically opening the screen 900 completely.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.

Claims (10)

1. A net frame for connecting net frames, comprising:

the edge strip is provided with an edge hole, and a stop flange is arranged on one side, close to the screen frame, in the edge hole;

one end of the sliding shaft is used for being connected with the screen frame, and the other end of the sliding shaft is provided with a limiting flange which is arranged in the side hole;

the elastic piece is arranged in the side hole, and the limiting flange, the elastic piece and the stopping flange are sequentially close to the screen frame.

2. The net frame according to claim 1, wherein the position-defining flange is screwed to the other end of the slide shaft.

3. The frame unit according to claim 1, further comprising a linear bearing disposed in the side hole on a side close to the frame unit, wherein the slide shaft is slidably coupled to the linear bearing.

4. The frame unit of claim 1, further comprising a mounting sleeve, wherein the edge hole is disposed in the mounting sleeve, and wherein the edge strip has a mounting hole disposed therein, and wherein the mounting sleeve is mounted in the mounting hole.

5. A mesh frame according to claim 4, characterised in that the end of the mounting sleeve remote from the mesh frame is provided with a stop lug which causes the end of the mounting sleeve to be stopped to one side of the edge strip.

6. The screen frame of claim 1 wherein the resilient member is one of a spring, a resilient plastic sleeve and a disc spring.

7. The frame of claim 1, further comprising a bracket, wherein the bracket is arranged on one side of the edge strip away from the frame, and the bracket is provided with a bearing hole for mounting a dismounting tool.

8. The frame of claim 1, further comprising a frame and a support, wherein the support is disposed on a side of the frame away from the frame, the support is configured to have a receiving hole, the edge strip is disposed on the frame, one of the support and the frame is configured to have a slide rail, the other is configured to have a slide block, the support and the frame are slidably coupled, and the support is configured to slide on the frame such that the receiving hole is aligned with the edge hole.

9. A screen printing apparatus characterized by comprising:

a screen frame;

the net frame according to any one of claims 1 to 8, wherein the sliding axle of the net frame is connected to the net frame.

10. The screen printing device according to claim 9, wherein the one end of the slide shaft is provided with a limiting protrusion, the screen frame is provided with a connecting through hole, the one end of the slide shaft passes through the connecting through hole and is movably connected with the screen frame, and the limiting protrusion is used for limiting the screen frame.

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