CN113954004A - Half tone presss from both sides dress tool - Google Patents

Abstract

The invention relates to a screen clamping jig which comprises a platform adapter plate, a working frame, a character returning frame, vertex locking mechanisms, an air pressure adjusting device, the adapter frame and a screen, wherein the character returning frame is arranged in a frame groove on the outer side of the top of the working frame, the bottom of the inner side of the working frame is provided with a plurality of vertex locking mechanisms, the air pressure adjusting device is connected with the vertex locking mechanisms, the bottom of the working frame is arranged on the platform adapter plate, the screen is arranged on the adapter frame, and the bottom of the screen is in contact with the top of the character returning frame below. The clamping mode is stable and reliable, no relative displacement is ensured in the machining process, and the requirement of high-speed movement of the platform is met; the clamping mode and the force can not cause deformation of the screen printing plate, so that the overall size precision of a processed product is influenced.

Description

Half tone presss from both sides dress tool

Technical Field

The invention relates to the technical field related to printing screen processing, in particular to a screen clamping jig.

Background

The photovoltaic screen printing screen is an essential important consumable material for printing production of solar cells. With the continuous development and progress of screen printing technology, screen printing manufacture has been changed from the traditional photoresist exposure plate making mode to laser plate making. The new screen printing plate manufacturing mode is that PI film and glue are used to replace traditional photosensitive glue to perform screen printing plate manufacturing, and the original process modes of exposure, development and imaging are changed into a laser direct scribing process.

Facing to a novel plate making process, I successfully developed equipment suitable for PI marking forming, wherein the equipment takes linkage control as a core, and effectively combines the vibrating mirror processing and the platform processing mode to realize a fast and efficient screen plate forming process. And in the linkage processing mode, the platform drives the screen printing plate to move at a high speed, and the moving speed range is 100mm/s to 400 mm/s. Meanwhile, the weight of the screen printing plate is 2-4 kg, the requirement on the precision of the graph of a product to be processed is high, and the precision requirement is +/-1 mu m. Therefore, under the condition of meeting the processing precision, the clamping mode of the screen printing plate is of great importance, so that the problem that the processing precision is poor due to displacement of the screen printing plate under high-speed motion is avoided.

The machine developed based on the screen printing plate belongs to new application of product development, the requirement on product precision is high, and the product specification is frequently switched. Therefore, the requirement of the equipment for using the object for quickly switching the machining process is obvious. The common screen specification is 356, 380, 450, 500 and 550, and the rapidness of products with different specifications is required to be realized in the actual production process, and the precision stability of processed products is ensured. Because the production of the screen printing plate is order type production, the specifications of screen frames adopted by different customers are different, and the screen printing plate needs to be switched back and forth between different specifications during processing so as to realize high-efficiency production. Therefore, considering the characteristics of the processing technique of the screen machine, the clamping mode of the screen must be stable and reliable, and the clamping is convenient.

In view of the above-mentioned defects, the designer actively makes research and innovation to create a screen clamping jig, so that the screen clamping jig has more industrial utilization value.

Disclosure of Invention

In order to solve the above technical problems, an object of the present invention is to provide a screen clamping jig.

In order to achieve the purpose, the invention adopts the following technical scheme:

the half tone presss from both sides dress tool, including platform keysets, work frame, word returning frame, summit locking mechanism, air pressure adjusting device, switching frame and half tone, word returning frame installs in the frame inslot in the work frame top outside, work frame's inboard bottom is provided with a plurality of summit locking mechanism, air pressure adjusting device is connected with summit locking mechanism, work frame's bottom is installed on the platform keysets, the half tone is installed on the switching frame, the bottom of half tone and the top contact setting of the word returning frame below.

As a further improvement of the invention, the vertex locking mechanism comprises an air cylinder push rod and a vertex push rod, a conical jacking groove is arranged at the bottom of the vertex push rod, and the air cylinder push rod is positioned in the working frame below the conical jacking groove.

As a further improvement of the invention, the working frame is mounted on the platform adapter plate through a tool fixing screw.

As a further improvement of the invention, the screen printing plate is arranged on the transfer frame through screen printing plate connecting screws, and the transfer frame is also provided with a rubber ring.

As a further improvement of the invention, the rubber ring comprises a first rubber ring and a second rubber ring.

As a further improvement of the invention, the device also comprises a switching block, wherein the switching block is arranged on the outer side of the bottom of the working frame, and the switching block is positioned between the working frame and the switching frame.

As a further improvement of the invention, the adapter block is arranged on the working frame through an adapter block connecting screw.

As a further improvement of the invention, the working frame at the lower part of the adapter frame is also provided with a force unloading device which is contacted with the adapter frame at the upper part.

As a further improvement of the invention, the force-removing device is a stud screw.

As a further improvement of the invention, a light source is also mounted on the top of the work frame.

By the scheme, the invention at least has the following advantages:

1. the contact surface has excellent levelness and can meet the processing requirement of small focal depth;

2. the clamping mode is stable and reliable, no relative displacement is ensured in the processing process, and the requirement of high-speed movement of the platform is met;

3. the clamping mode and force can not cause deformation of the screen printing plate, so that the overall dimensional accuracy of a processed product is influenced;

4. the loading and unloading are convenient, and the requirement of quick loading and unloading can be met;

5. the product specification is switched conveniently, and the clamping tool can meet the processing requirements of products of different specifications.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a schematic structural view of a screen clamping jig according to the present invention;

FIG. 2 is an enlarged partial schematic view of the apex locking mechanism of FIG. 1;

FIG. 3 is a schematic diagram of the structure of the junction box of FIG. 1;

fig. 4 is a schematic structural diagram of another embodiment of the present invention.

In the drawings, the meanings of the reference numerals are as follows.

1 platform keysets 2-1 frock set screw

2-2 screen connecting screw 2-3 switching block connecting screw

3 tool framework 4 force unloading device

5-turn frame 6-vertex locking mechanism

6-1 cylinder ejector rod 6-2 vertex ejector rod

7 air pressure adjusting device 8 switching frame

9 rubber ring 9-1 first rubber ring

9-2 second rubber ring 10 screen printing plate

11 light source 12 switching block

Detailed Description

The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.

In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

Examples

As shown in figures 1 to 4 of the drawings,

the screen clamping jig comprises a platform adapter plate 1, a working frame 3, a character-returning frame 5, a vertex locking mechanism 6, an air pressure adjusting device 7, a switching frame 8 and a screen printing plate 10, wherein the character-returning frame 5 is installed in a frame groove in the outer side of the top of the working frame 3, a plurality of vertex locking mechanisms 6 are arranged at the bottom of the inner side of the working frame 3, the air pressure adjusting device 7 is connected with the vertex locking mechanisms 6, the bottom of the working frame 3 is installed on the platform adapter plate 1, the screen printing plate 10 is installed on the switching frame 8, and the bottom of the screen printing plate 10 is in contact with the top of the character-returning frame 5 below.

Preferably, the top locking mechanism 6 comprises a cylinder push rod 6-1 and a top push rod 6-2, a conical jacking groove is formed in the bottom of the top push rod 6-2, and the cylinder push rod 6-1 is located in the working frame 3 below the conical jacking groove. The pneumatic adjusting device 7 is a pneumatic driving mechanism such as an air cylinder, etc., which is conventional in the art, and the driving principle between the pneumatic adjusting device 7 and the vertex locking mechanism 6 is similar to that of the pneumatic driving mechanism such as an air cylinder, etc., and will not be described in detail.

Preferably, the working frame 3 is mounted on the platform adapter plate 1 through a tool fixing screw 2-1.

Preferably, the screen 10 is mounted on the adapter frame 8 through screen connection screws 2-2, and the adapter frame 8 is further provided with a rubber ring 9.

Preferably, the rubber ring 9 comprises a first rubber ring 9-1 and a second rubber ring 9-2.

Preferably, the device further comprises a transfer block 12, wherein the transfer block 12 is arranged on the bottom outer side of the working frame 3, and the transfer block 12 is positioned between the working frame 3 and the transfer frame 8.

Preferably, the adapter block 12 is mounted on the work frame 3 by means of adapter block connection screws 2-3.

Preferably, the force unloading device 4 is further mounted on the working frame 3 at a position below the adapter frame 8, and the force unloading device 4 is in contact with the adapter frame 8 above.

Preferably, the force-releasing device 4 is a stud screw.

Preferably, a light source 11 is also mounted on the top of the work frame 3.

Because the focal depth of the machine processing focus is short, in order to achieve good line width consistency and guarantee the precision of a processed product, the working design is required to ensure the levelness of a processing plane, and in the tool design, a machined part with extremely high flatness is adopted to ensure the levelness of the processing plane. In order to ensure that the overall size precision of the processed graph can not apply overlarge clamping force to the screen printing plate in the clamping process, so that the screen printing plate is prevented from being deformed to cause poor size precision. In order to meet the requirements of efficient production and quick replacement of screen printing plates of customers, a plurality of transfer frames are designed, so that the aims of effective compatibility and quick replacement are fulfilled.

In summary, the screen clamping method and the tooling features can be summarized as the following points:

the contact surface has excellent levelness and can meet the processing requirement of small focal depth;

the clamping mode is stable and reliable, no relative displacement is ensured in the machining process, and the requirement of high-speed motion of the platform is met.

The clamping mode and the force can not cause deformation of the screen printing plate, so that the overall size precision of a processed product is influenced.

Go up the unloading convenience, can satisfy fast loading and unloading's demand.

The product specification is switched conveniently, and the clamping tool can meet the processing requirements of products of different specifications.

The invention mainly designs a clamping mode and a manufacturing tool which meet the requirements of screen production, and the design of the tool not only considers the requirements of screen production precision control, but also considers the compatibility of production of products with different specifications. The basic principle of the design is that the pneumatic driving is adopted, and 6 vertexes are arranged in the front, back, left and right directions, so that the tool frame 3 and the transfer frame 8 are firmly fastened and locked together. The transfer frame 8 and the screen printing plate 10 are locked by using the screen printing plate connecting screws 2-2, and in consideration of the deformation problem caused by the locking force, a rubber ring 9 with certain elasticity is arranged between the transfer frame 8 and the screen printing plate 10, so that the deformation of the screen printing plate is reduced through the deformation of the rubber ring 9.

The specific design idea of the screen clamping device is as follows:

the tool adopts a pneumatic mode to drive the locking mechanism, is limited to the available space of tool design, and has relatively short cylinder stroke.

The machined square frame 5 is adopted, and the horizontal consistency of a machined surface is ensured by adjusting the surface flatness of the square frame 5 during use.

The tool designs 6 vertexes, wherein the front position and the rear position are respectively one, and the left position and the right position are respectively 2, because the tool design space is limited and the precision requirement of a customer on the Y direction of a product is higher than that of the X direction.

Considering that the screen frame precision of the product of the screen printing plate 10 is low, and the influence of self deformation on the product precision is large, the switching frame 8 is added in the locking of the screen frame 10 and the tool frame 3. The transfer frame 8 is a machined part with standard size, which can meet the requirement of locking and avoid the adverse effect of short stroke of the cylinder.

The transfer frame 8 is connected with the screen printing plate 10 by bolts, a rubber ring 9 is used at the contact position of the transfer frame and the screen printing plate, and the transfer frame and the screen printing plate are integrated by virtue of the locking of the bolts and the friction force of the rubber ring 9.

The working principle of the invention is briefly described as follows:

firstly, a tool frame 3, a force unloading device 4, a square frame 5, a vertex locking mechanism 6 and an air pressure adjusting device 7 form an integral tool together.

And secondly, the whole tool is arranged on the platform adapter plate 1, the two are tightly connected together by using a tool fixing screw 2-1, and an air source is connected into the tool.

Then, the square frame 5 is horizontally adjusted in place by measurement using a dial gauge. The square frame 5 and the tool frame 3 are connected and leveled by bolts and jackscrews.

Next, how to use the screen plate 10 in cooperation with the adapter frame 8 in practical applications is a key link in realizing mass production.

Before the screen printing plate 10 is produced and used, the adapter frame 8 and the rubber ring 9 need to be bonded together by using UV glue.

After the glue is dried, the screen printing plate 10, the adapter frame 8 and the rubber ring 9 are connected together by using the screen printing plate connecting screws 2-2 to form a whole.

Then, the integral body formed by the screen plate 10 and the transfer frame 8 is placed on a tool, and the screen plate 10 is fixedly locked by using the control of an air pressure control switch.

Further, the locking of the screen 10 depends on the vertex locking mechanism 6 to use the vertices of 6 positions to firmly fix the screen 10 on the tool.

The working principle of the vertex locking mechanism 6 is as follows: after air pressure is introduced into the tool through the air pressure control switch, the air cylinder ejector rod 6-1 moves upwards, and the vertex ejector rod 6-2 moves outwards, so that the transfer frame 8 is tightly locked together.

It should be further noted that the 450 rubber rings (the first rubber ring 9-1) are suitable for locking the screw hole positions of the 450 screen. The 356 rubber ring (the second rubber ring 9-2) is suitable for locking the screw hole position of the 356 screen printing plate.

In terms of tool usage, the transfer frame 8 is compatible with 450 and 356 frames, and is the most common specification of the screen 10.

As shown in fig. 4, adding the transfer block 12 to the existing overall tool is the most direct means for realizing the dual use of 550 frames and 450 frames.

Further, the adapting block 12 realizes the compatibility of the 550-specification screen and the 450-specification screen in the processing process, thereby effectively shortening the processing time.

The structure utilizes the dead weight of the screen printing plate to ensure that the screen printing plate 10 is closely contacted with the character returning frame 5 so as to ensure the flatness of the processing plane of the screen printing plate 10 and further achieve the aim of controlling the scribing precision of a product.

The fixed stroke air cylinder is driven in a pneumatic mode, and the fixed stroke of the air cylinder is utilized to ensure that the clamping force on the screen printing plate 10 is in a basically consistent state, so that the aim of controlling the overall dimensional accuracy of a product to be stable is fulfilled.

The air cylinder self-locking type clamping is utilized, the requirement on air source pressure is reduced, and the stability of the jacking locking mechanism 6 is ensured

By using the force unloading device 4, the self weight of the screen plate 10 is reduced, and the screen plate 10 is prevented from being deformed too much due to too large self weight of the screen plate 10.

The switching frame 8 is designed and used, so that the problem of product size precision caused by insufficient clamping force due to poor size of the screen printing plate 10 is solved.

By utilizing the transfer block 12, the size of the inner diameter of the transfer frame is increased from 282mm to 363mm, and the quick switching of the screen specification from 356 to 450 is realized.

And a multi-specification transfer frame 8 is designed and manufactured, so that the production of the 356, 450 and 550 screens is rapidly switched, and the production intermittence time is further reduced.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly referring to the number of technical features being grined. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection: either mechanically or electrically: the terms may be directly connected or indirectly connected through an intermediate member, or may be a communication between two elements.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, it should be noted that, for those skilled in the art, many modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims (10)

1. The screen clamping jig is characterized by comprising a platform adapter plate (1), a working frame (3), a character returning frame (5), a vertex locking mechanism (6), an air pressure adjusting device (7), a switching frame (8) and a screen (10), wherein the character returning frame (5) is installed in a frame groove in the outer side of the top of the working frame (3), the bottom of the inner side of the working frame (3) is provided with a plurality of vertex locking mechanisms (6), the air pressure adjusting device (7) is connected with the vertex locking mechanism (6), the bottom of the working frame (3) is installed on the platform adapter plate (1), the screen (10) is installed on the switching frame (8), and the bottom of the screen (10) is in contact with the top of the character returning frame (5) below.

2. The screen clamping jig of claim 1, wherein the vertex locking mechanism (6) comprises a cylinder ejector rod (6-1) and a vertex ejector rod (6-2), a conical jacking groove is arranged at the bottom of the vertex ejector rod (6-2), and the cylinder ejector rod (6-1) is positioned in the working frame (3) below the conical jacking groove.

3. The screen clamping jig of claim 1, wherein the working frame (3) is mounted on the platform adapter plate (1) by means of tool fixing screws (2-1).

4. The screen clamping jig of claim 1, wherein the screen (10) is mounted on a transfer frame (8) through screen connecting screws (2-2), and a rubber ring (9) is further disposed on the transfer frame (8).

5. The screen clamping jig of claim 4, wherein the rubber ring (9) comprises a first rubber ring (9-1) and a second rubber ring (9-2).

6. The screen clamping jig of claim 1, further comprising a transfer block (12), wherein the transfer block (12) is arranged on the outer side of the bottom of the working frame (3), and the transfer block (12) is located at a position between the working frame (3) and the transfer frame (8).

7. The screen clamping jig of claim 6, wherein the adapter block (12) is mounted on the working frame (3) by means of adapter block connecting screws (2-3).

8. The screen clamping jig of claim 1, wherein the working frame (3) below the transfer frame (8) is further provided with a force unloading device (4), and the force unloading device (4) is in contact with the transfer frame (8) above.

9. The screen clamping jig of claim 8, wherein the force-releasing device (4) is a stud screw.

10. The screen clamping jig of claim 1, wherein a light source (11) is further mounted on the top of the working frame (3).

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