A screen printing screen

Abstract

The utility model relates to the technical field of silk screen printing, specifically relates to a silk screen printing screen, including screen frame body, silk screen body and protection mechanism, protection mechanism includes left shield, right shield, guide rail strip, sliding block, bracket, connecting device and stabilizing device, when the screen is idle, the L shape end of sliding block on left shield and right shield is aligned with the L shape sliding slot on guide rail strip, then respectively push left shield and right shield until both abut, finally through connecting device, the both connection state keeps, at this moment, through left shield and right shield, the screen frame body top and silk screen body bottom can be protected, reduce the possibility that silk screen body is polluted, and left shield and right shield can be reused after cleaning, and then solve the problem that the screen is not convenient for the staff to protect quickly when the screen is idle at present part silk screen printing, and the plastic film is used to wind and protect the silk screen, and it is easy to cause material loss, and it is more unfavorable to environmental protection.

Description

Technical Field

[0001] This utility model relates to the field of screen printing technology, and in particular to a screen printing stencil. Background Technology

[0002] During the screen printing process, whether the emulsion is applied by machine or by hand in Photoshop, the emulsion will often form irregular shapes with grooved edges. This condition is usually not addressed during production, resulting in an extremely unsightly screen and negatively impacting printing quality, especially for fine-lined screens.

[0003] A search revealed that prior art CN202685525U discloses a printing screen, particularly a screen printing screen. It includes a frame, on which a screen is stretched, with an emulsion coated in the center of the screen, and a red peel-off film around the perimeter of the emulsion. This invention improves the aesthetic appearance of the screen and enhances printing results; it has broad application prospects.

[0004] However, the above-mentioned printing screens have the following problems when used: the surface of the screen usually needs to be covered with photosensitive material. During printing, the ink can be printed onto the surface of the substrate through the mesh of the screen. Therefore, the cleanliness of the screen is very important for the subsequent printing effect. When the existing screen printing screens are not in use, the staff needs to use plastic film to wrap the screen frame to protect the screen. However, this protection method not only easily causes material waste, that is, the plastic film is difficult to reuse, but also easily affects the efficiency of use. That is, it is time-consuming for the staff to wrap the screen frame with plastic film one circle at a time, and it may even affect the overall efficiency of screen printing. Utility Model Content

[0005] The purpose of this utility model is to provide a screen printing stencil that solves the problem that when some screen printing stencils are idle, it is inconvenient for workers to quickly protect the stencils, and the use of plastic film to wrap and protect the stencils easily causes material waste and is also detrimental to the environment.

[0006] To achieve the above objectives, this utility model provides a screen printing stencil, including a frame body and a screen body fixedly installed at the bottom of the frame body, and also includes a protective mechanism;

[0007] The protective mechanism includes a left protective cover, a right protective cover, guide rails, sliding blocks, a lifting frame, a connecting device, and a stabilizing device. The left and right protective covers slide in contact with the top of the wire mesh frame body and the bottom of the wire mesh body, respectively, and are of the same size. They are connected and assembled through the connecting device. The guide rails are installed on the wire mesh frame body and are symmetrically arranged along the length of the left and right protective covers. The sliding blocks are fixed on both sides of the left and right protective covers, and their L-shaped ends slide in cooperation with the L-shaped grooves on the guide rails. The lifting frame is fixed to the top right side of the left protective cover. The stabilizing devices are respectively located on the side of the left and right protective covers near the wire mesh frame body.

[0008] The wire mesh body consists of a fixing part and a working part. The fixing part is fixedly connected to the wire mesh frame body, and the working part is located inside the fixing part.

[0009] The connecting device includes a connecting frame and a locking cap. The connecting frame is installed on the top left side of the right cover and fits against the lifting frame, with its round shaft end penetrating through the lifting frame. The locking cap is threaded to the connecting frame and abuts against the lifting frame.

[0010] The stabilizing device includes a positioning pin and a bar magnet. The positioning pin is threadedly connected to the left and right protective covers respectively, and is slidably connected to the mesh frame body, without penetrating the side wall of the mesh frame body. The bar magnet is fixed to the right end face of the left protective cover and is attracted and engaged with an iron block installed in the mounting cavity on the left end face of the right protective cover.

[0011] The screen printing stencil further includes an insertion mechanism, which includes a fixing block and an insertion rod frame. The fixing block is integrally formed with the left protective cover and is symmetrically arranged. The insertion rod frame is integrally formed with the right protective cover, and its round rod is slidably inserted into the through hole on the fixing block.

[0012] This utility model discloses a screen printing stencil. When the stencil is idle, the L-shaped ends of the sliding blocks on the left and right protective covers are aligned with the L-shaped grooves on the guide rail. Then, the left and right protective covers are pushed until they abut against each other. Finally, a connecting device is used to maintain the connection between the two. At this time, the left and right protective covers can protect the top of the stencil frame and the bottom of the screen body, reducing the possibility of contamination of the screen body. Moreover, the left and right protective covers can be reused after cleaning. This solves the problem that some screen printing stencils are inconvenient for workers to quickly protect when idle, and that using plastic film to roll up and protect the screen can easily cause material waste and is not environmentally friendly. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments or the prior art will be briefly introduced below.

[0014] Figure 1 This is a schematic diagram of the overall structure of the screen printing stencil according to the first embodiment of this utility model.

[0015] Figure 2 This is a cross-sectional view of the right protective cover of the first embodiment of this utility model.

[0016] Figure 3 This is a schematic diagram of the structure of the left protective cover of the first embodiment of this utility model.

[0017] Figure 4 This is a schematic diagram of the overall structure of the screen printing stencil according to the second embodiment of this utility model.

[0018] In the diagram: 101-Wire mesh frame body, 102-Wire mesh body, 1021-Fixing part, 1022-Working part, 103-Left protective cover, 104-Right protective cover, 105-Guide rail, 106-Sliding block, 107-Lifting frame, 108-Connecting frame, 109-Locking cap, 110-Positioning pin, 111-Bar magnet, 201-Fixing block, 202-Pole bracket. Detailed Implementation

[0019] The embodiments of the present invention are described in detail below. Examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0020] Example 1:

[0021] like Figures 1 to 3 As shown, where Figure 1 This is a schematic diagram of the overall structure of a screen printing stencil. Figure 2 This is a cross-sectional view of the right side shield. Figure 3 This is a structural diagram of the left protective cover. This utility model provides a screen printing stencil: it includes a frame body 101, a screen body 102, and a protective mechanism. The protective mechanism includes a left protective cover 103, a right protective cover 104, a guide rail 105, a sliding block 106, a lifting frame 107, a connecting device, and a stabilizing device. The connecting device includes a connecting frame 108 and a locking cap 109. The stabilizing device includes a positioning pin 110 and a bar magnet 111. This solution solves the problem that when some screen printing stencils are idle, it is inconvenient for workers to quickly protect them. Furthermore, using plastic film to wrap and protect the screen can easily cause material waste and is detrimental to environmental protection. Understandably, the aforementioned solution provides convenient and quick protection for the screen.

[0022] In this embodiment, the wire mesh frame body 101 is a rectangular frame structure with a stepped cavity at the bottom to facilitate the installation of the wire mesh body 102.

[0023] The left protective cover 103 and the right protective cover 104 are slidably in contact with the top of the wire mesh frame body 101 and the bottom of the wire mesh body 102, respectively, and are of the same size. They are connected and assembled through the connecting device. The guide rail 105 is installed on the wire mesh frame body 101 and is symmetrically arranged along the length of the left protective cover 103 and the right protective cover 104. The sliding block 106 is fixed on both sides of the left protective cover 103 and the right protective cover 104, and its L-shaped end is slidably engaged with the L-shaped groove on the guide rail 105. The lifting frame 107 is fixed on the top right side of the left protective cover 103. The stabilizing device is respectively arranged on the side of the left protective cover 103 and the right protective cover 104 near the wire mesh frame body 101. Both the left protective cover 103 and the right protective cover 104 are U-shaped structures. The guide rail 105 is fixed by bolts and has symmetrically arranged through L-shaped grooves in the vertical direction. The sliding block 106 is connected to the left protective cover 103 and the right protective cover 104 by bolts respectively, and its L-shaped end can slide in the L-shaped groove. The lifting frame 107 is fixed by bolts to facilitate the overall movement of the device. The stabilizing device is used to improve the stability of the left protective cover 103 and the right protective cover 104 after installation.

[0024] Secondly, the screen body 102 consists of a fixing part 1021 and a working part 1022. The fixing part 1021 is fixedly connected to the screen frame body 101, and the working part 1022 is located inside the fixing part 1021. The fixing part 1021 is fixed to the bottom of the screen frame body 101 by countersunk bolts, and the working part 1022 is used for screen printing.

[0025] Then, the connecting frame 108 is installed on the top left side of the right protective cover 104 and fits against the lifting frame 107, with its cylindrical end penetrating through the lifting frame 107; the locking cap 109 is threadedly connected to the connecting frame 108 and abuts against the lifting frame 107. The connecting frame 108 has a T-shaped structure, consisting of a rectangular plate and a cylindrical shaft. The rectangular plate is fixed by bolts, and the cylindrical shaft is integrally formed with the rectangular plate and slides into the mating hole on the lifting frame 107. A stepped external thread is provided on the cylindrical shaft to facilitate the installation of the locking cap 109.

[0026] Finally, the positioning pin 110 is threadedly connected to the left protective cover 103 and the right protective cover 104 respectively, and is slidably connected to the mesh frame body 101, without penetrating the side wall of the mesh frame body 101; the bar magnet 111 is fixed to the right end face of the left protective cover 103, and is attracted and engaged with the iron block installed in the mounting cavity on the left end face of the right protective cover 104. The stepped external thread end of the positioning pin 110 directly mates with the threaded hole on the left cover 103 or the right cover 104. Simultaneously, the positioning pin 110 can be installed or removed by rotating it with an Allen wrench. The bar magnet 111 is mounted on the left cover 103 via a countersunk bolt, with the end face of the bar magnet 111 flush with the end face of the left cover 103. Similarly, an iron block flush with the end face of the right cover 104 is mounted on it via a countersunk bolt, facilitating the attraction of the bar magnet 111. The positioning pin 110 prevents the left cover 103 and the right cover 104 from moving in the width direction. The attraction of the bar magnet 111 to the iron block improves connection stability and makes subsequent removal easier.

[0027] To address the current problem of inconvenience for workers to quickly protect screen printing stencils when they are idle, and the waste and environmental disadvantage of using plastic film to wrap and protect the stencils, this invention firstly involves aligning the L-shaped ends of the sliding blocks 106 on the cleaned inner walls of the left and right protective covers 103 and 104 with the L-shaped grooves on the guide rail 105. During alignment, the positioning pin 110 directly aligns with the hole on the frame body 101 after the sliding blocks 106 are aligned. Then, the left and right protective covers 103 and 104 are pushed until they abut against each other. Finally, the connection is maintained by the connecting device. At this point, the connection is achieved through the left and right protective covers 103 and 104. This system can protect the top of the screen frame body 101 and the bottom of the screen body 102, reducing the possibility of contamination of the screen body 102. The left protective cover 103 and the right protective cover 104 can be reused after cleaning. When using the screen, first remove the locking cap 109, then pull the left protective cover 103 and the right protective cover 104 to both sides and completely detach them from the guide rail 105. Afterwards, the operator pours ink into the interior of the screen frame body 101, i.e., into the top of the screen body 102, and then uses a squeegee for screen printing. This solves the problem that currently, when some screen printing screens are idle, it is inconvenient for operators to quickly protect the screen, and using plastic film to wrap and protect the screen easily causes material waste and is detrimental to environmental protection.

[0028] Example 2:

[0029] like Figure 4 As shown, where Figure 4This is a schematic diagram of the overall structure of a screen printing stencil. Based on the first embodiment, this utility model provides a screen printing stencil, which further includes an insertion mechanism, comprising a fixing block 201 and an insertion rod frame 202.

[0030] The fixing block 201 is integrally formed with the left protective cover 103 and is symmetrically arranged; the insertion rod bracket 202 is integrally formed with the right protective cover 104, and its round rod is slidably inserted into the through hole on the fixing block 201. The through hole on the fixing block 201 facilitates the sliding insertion of the round rod on the insertion rod bracket 202.

[0031] In this embodiment, the fixing block 201 and the insert rod bracket 202 further form a limiting structure in the width direction of the left protective cover 103 and the right protective cover 104 to prevent movement and improve the stability of the left protective cover 103 and the right protective cover 104.

[0032] The above-disclosed embodiments are merely one or more preferred embodiments of this application and should not be construed as limiting the scope of this application. Those skilled in the art can understand that all or part of the processes for implementing the above embodiments and equivalent changes made in accordance with the claims of this application still fall within the scope of this application.

Claims

1. A screen printing stencil, comprising a frame body and a screen body fixedly installed at the bottom of the frame body, characterized in that, It also includes protective facilities; The protective mechanism includes a left protective cover, a right protective cover, guide rails, sliding blocks, a lifting frame, a connecting device, and a stabilizing device. The left and right protective covers slide in contact with the top of the wire mesh frame body and the bottom of the wire mesh body, respectively, and are of the same size. They are connected and assembled through the connecting device. The guide rails are installed on the wire mesh frame body and are symmetrically arranged along the length of the left and right protective covers. The sliding blocks are fixed on both sides of the left and right protective covers, and their L-shaped ends slide in cooperation with the L-shaped grooves on the guide rails. The lifting frame is fixed to the top right side of the left protective cover. The stabilizing devices are respectively located on the side of the left and right protective covers near the wire mesh frame body.

2. The screen printing stencil as described in claim 1, characterized in that, The wire mesh body consists of a fixed part and a working part. The fixed part is fixedly connected to the wire mesh frame body, and the working part is located inside the fixed part.

3. The screen printing stencil as described in claim 1, characterized in that, The connecting device includes a connecting frame and a locking cap. The connecting frame is installed on the top left side of the right cover and fits against the lifting frame, with its cylindrical end penetrating through the lifting frame. The locking cap is threaded to the connecting frame and abuts against the lifting frame.

4. The screen printing stencil as described in claim 1, characterized in that, The stabilizing device includes a positioning pin and a bar magnet. The positioning pin is threadedly connected to the left and right protective covers respectively, and is slidably connected to the mesh frame body, without penetrating the side wall of the mesh frame body. The bar magnet is fixed to the right end face of the left protective cover and is attracted and engaged with an iron block installed in the mounting cavity on the left end face of the right protective cover.

5. The screen printing stencil as described in claim 1, characterized in that, The screen printing stencil also includes an insertion mechanism, which includes a fixing block and an insertion rod frame. The fixing block is integrally formed with the left protective cover and is symmetrically arranged. The insertion rod frame is integrally formed with the right protective cover, and its round rod is slidably inserted into the through hole on the fixing block.

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