Silk-screen printing plate storage device

Abstract

The utility model relates to the technical field of screen printing plate storage, in particular to a silk-screen printing plate storage device which comprises a frame body, separation rods and pulley blocks, the frame body comprises a vertically-arranged vertical frame and a horizontally-arranged bracket, and the vertical frame is fixedly connected with the bracket; a plurality of separation rods are arranged on the rack body, so that the rack body is divided into a plurality of separation grooves; a base plate is arranged at the bottoms of the partition grooves, the pulley block comprises a base and pulleys arranged in the base, and the base is fixed to the base plate through bolts. According to the silk-screen printing plate storage device, the pulleys are arranged at the bottoms of the partition grooves, sliding friction between the screen printing plate and the screen printing plate storage device is changed into rolling friction when the screen printing plate is taken and placed, friction force is reduced, and therefore chippings generated by friction are reduced, the surface of the screen printing plate is cleaner, and the ink printing quality is improved. The base plates are arranged at the bottoms of the partition grooves, the pulley blocks are detachably arranged on the base plates, when the pulleys need to be replaced, only the base where the pulleys are located needs to be detached, and detaching and replacing are quite convenient and rapid.

Description

Technical Field

[0001] This utility model relates to the field of screen printing plate storage technology, and more specifically, to a screen printing plate storage device. Background Technology

[0002] In the PCB manufacturing process, solder mask application typically employs methods such as screen printing, electrostatic spraying, or low-pressure spraying, with screen printing being the most common. The screen itself is the most crucial element in screen printing, as its quality directly impacts the overall solder mask application. Due to the diverse range of PCB models, each requiring a correspondingly designed screen, PCB manufacturers usually maintain 500 to 1000 screens, sometimes even more. These numerous screens are typically stored on fixed steel frames and selected as needed. However, during handling, the edges of the screen frame can rub against the bottom of the frame, causing metal or other debris to fall and adhere to the screen. When printing ink, this foreign matter can fall onto the board surface, causing issues like foreign matter under the solder mask that affect the product's appearance. Furthermore, metal debris contacting copper pads can create short circuits, directly impacting the PCB's usability at the customer's end. Therefore, some manufacturers have designed screen storage devices with rollers at the bottom. However, most of these screen storage devices fix the rollers in slots at the bottom via roller shafts, making disassembly and replacement very inconvenient. Utility Model Content

[0003] The present invention aims to overcome at least one defect (deficiency) of the prior art and provide a screen printing stencil storage device to solve the problem of inconvenient disassembly and replacement of rollers in existing stencil storage devices.

[0004] The technical solution adopted by this utility model is a screen printing plate storage device, including a frame, dividing rods and a pulley assembly. The frame includes a vertically arranged stand and a horizontally arranged bracket, and the stand and the bracket are fixedly connected. Multiple dividing rods are provided on the frame, and the multiple dividing rods divide the frame into multiple compartments. A pad is provided at the bottom of each of the multiple compartments. The pulley assembly includes a base and pulleys arranged in the base, and the base is detachably arranged on the pad.

[0005] When in use, this screen printing stencil storage device places the stencil sideways in the compartment, with its side resting on pulleys. During loading and unloading, the stencil's side rolls against the pulleys, resulting in low friction, easy loading and unloading, and minimal debris generation. The device utilizes a pad at the bottom of the compartment to house the pulleys within a base, which is then detachably mounted on the pad. When the pulleys need replacement, simply remove the base from the pad for easy replacement.

[0006] Furthermore, the base is bolted to the pad.

[0007] The base has round holes at both ends, and the corresponding positions on the pad have threaded holes. Bolts are passed through the round holes at both ends of the pad and then connected to the threaded holes on the pad to fix the base to the pad. When the pulleys need to be replaced, simply unscrew the bolts to remove the base from the pad; the operation is simple and quick.

[0008] Furthermore, each pulley group includes 2 to 4 pulleys, and multiple pulley groups are provided on each pad.

[0009] Setting each pulley group to have 2-4 pulleys facilitates pulley replacement. When one pulley needs replacement, only the pulley group containing that pulley needs to be replaced, rather than replacing the entire pulley group in the compartment. The compartment is approximately 80cm long, and each pulley group is 6-10cm long. Therefore, multiple pulley groups are needed to cover the bottom of the compartment, ensuring stable placement of the screen and smooth handling during loading and unloading.

[0010] Furthermore, the pulley is covered with a wear-resistant rubber layer.

[0011] The pulleys are covered with a wear-resistant rubber layer, which can reduce wear on the screen printing stencil and extend its service life.

[0012] Furthermore, the highest point of the pulley is higher than the highest point of the bracket.

[0013] The highest point of the pulley is higher than the bracket, ensuring that the bottom of the screen printing stencil rests on the pulley, not on the bracket. When the stencil is picked up or placed, there is rolling friction between its bottom and the stencil storage area.

[0014] Furthermore, the thickness of the pad is 0.8 to 1.2 cm.

[0015] The pad can be made of polypropylene, which has good impact and wear resistance, can withstand certain pressure and external impacts, and is lightweight. The pad is used to fix the pulley system and bear the weight of the pulley system and the screen; therefore, it is made relatively thick to ensure sufficient strength and rigidity. However, if its thickness is too great, its weight may affect the stability of the screen storage device and the height of the partition groove. Therefore, its thickness is set to 0.8–1.2 cm.

[0016] Furthermore, there are multiple brackets, which divide the frame into multiple layers.

[0017] The frame is designed to be multi-layered, with screen printing stencils placed on both the top and bottom, allowing for the storage of more stencils within the same floor space.

[0018] Furthermore, a base plate is provided at the bottom of the plurality of brackets.

[0019] The base plate is welded to the bottom of the bracket to separate the upper and lower layers and prevent foreign objects from falling onto the lower screen.

[0020] Furthermore, the separator is a round rod.

[0021] When in use, the side of the screen printing stencil rests against the divider bar. The divider bar is round and can prevent the stencil from being scratched or abraded when it is picked up or put down.

[0022] Furthermore, the dividing rod is inclined, forming a triangular structure with the upright and the bracket.

[0023] Setting the divider bar at an angle so that it forms a triangle with the upright and bracket can make the structure of the screen storage device more stable and also make it easier to pick up and put down the screen.

[0024] Each claim must address its working principle and the technical problem it aims to solve.

[0025] Compared with existing technologies, the beneficial effects of this utility model are as follows: This screen printing screen storage device, by setting pulleys at the bottom of the partition, transforms the sliding friction between the screen and the storage device during screen loading and unloading into rolling friction, reducing frictional force and thus reducing debris generated by friction, resulting in a cleaner screen surface and improved printing quality. A pad is set at the bottom of the partition, and the pulley assembly is bolted to the pad. When a pulley needs to be replaced, only the bolts need to be unscrewed, making disassembly and replacement very convenient and quick. Each pulley assembly includes 2 to 4 pulleys, and multiple pulley assemblies are set on each pad. When one or more pulleys need to be replaced, only the pulley assembly containing that pulley needs to be replaced, without disassembling and replacing the entire pad's pulleys, further facilitating pulley replacement. The pulleys are covered with a wear-resistant rubber layer, reducing wear on the sides of the screen printing screen and extending its service life. This screen printing screen storage device can be configured in multiple layers to store more screen printing screens in the same footprint. A base plate is also provided at the bottom of the bracket to prevent debris from falling onto the screen printing plates stored below. The divider bars are round to avoid right-angled edges scratching the side surfaces of the screen printing plates. Furthermore, the divider bars are angled, forming a triangle with the stand and bracket, making the screen printing plate storage device more stable and facilitating the loading and unloading of the screen printing plates. Attached Figure Description

[0026] Figure 1 This is a structural diagram of the present invention.

[0027] Figure 2 This is a structural diagram of the present invention from another angle.

[0028] Figure 3 This is a structural diagram of the pad and pulley system.

[0029] Figure 4 This is an enlarged view of the pad and pulley system. Detailed Implementation

[0030] The accompanying drawings are for illustrative purposes only and should not be construed as limiting the scope of this invention. To better illustrate the following embodiments, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0031] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0032] like Figure 1 As shown, a screen printing stencil storage device includes a frame 1, dividing rods 2, and pulley sets 3. The frame 1 includes an upright 11, a first bracket 12, and a second bracket 13. The upright 11 is vertically arranged, while the first bracket 12 and the second bracket 13 are both horizontally arranged. The first bracket 12 is located at the bottom of the upright 11, and the second bracket 13 is located in the middle of the upright 11 and is fixedly connected to the upright 11, thereby dividing the frame 1 into upper and lower layers. Multiple inclined dividing rods 2 are provided on the frame 1, forming a triangle with the upright 11, the first bracket 12, and the second bracket 13, dividing the frame 1 into multiple compartments 4. Multiple pulley sets 3 are provided at the bottom of each compartment 4 to facilitate the loading and unloading of the screen printing stencil and reduce friction between the screen printing stencil and the storage device during loading and unloading, thereby reducing the generation of foreign objects.

[0033] Specifically, the upright frame 11 includes two uprights 111, a top crossbar 112, a middle crossbar 113, and a bottom crossbar 114, thus forming a rectangular frame structure. A first bracket 12 is located at the bottom of the upright frame 11, including two first vertical bars 121 and a first crossbar 122. The first bracket 12 and the bottom crossbar 114 of the upright frame form a horizontally arranged rectangular frame. A second bracket 13 is located in the middle of the upright frame 11, including two second vertical bars 131 and a second crossbar 132. The second bracket 13 and the middle crossbar 113 of the upright frame form a horizontally arranged rectangular frame.

[0034] Both the first bracket 12 and the second bracket 13 have a base plate 5 at their bottom. The base plate 5 is made of metal and is relatively thin, preferably 1-2 mm, to prevent foreign objects from falling from the upper layer to the lower layer. Multiple partition rods 2 are respectively installed between the top horizontal bar 112 and the second horizontal bar 132 of the upright frame, and between the middle horizontal bar 113 and the first horizontal bar 122 of the upright frame, thus forming two triangular frame structures with the upright frame 11, the first bracket 12, and the second bracket 13, and dividing the frame into multiple slots 4 for accommodating the screen. The partition rods 2 are all circular steel pipes to prevent scratches on the sides of the screen during handling.

[0035] Each of the multiple slots 4 has a pad 6 at its bottom. The pad 6 can be made of polypropylene board with a relatively thick thickness, preferably 0.8-1.2 cm. Multiple pulley sets 3 are provided on the pad 6. Each pulley set 3 includes a base 31 and pulleys 32. The base 31 is connected to the pad 6 by bolts, and side plates 33 are provided on both sides of the base 31. A round shaft 34 is provided between the side plates 33. The pulleys 32 are fitted onto the round shaft 34 and can rotate around the round shaft 34. The pulleys 32 are covered with a wear-resistant rubber layer, or can be made of wear-resistant rubber material. The highest point of the pulley 32 must be higher than the top surface of the first and second brackets to ensure that the screen is placed on the pulley 32. Preferably, a set of pulley blocks 3 is provided with 2 to 4 pulleys 32, and a pad plate 6 is provided with multiple sets of pulley blocks 3. When a pulley 32 of a pulley block 3 is damaged, the pulley block 3 can be replaced simply by unscrewing the bolts, without having to disassemble all the pulleys 32 on the entire pad plate 6.

[0036] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the technical solution of this utility model, and are not intended to limit the specific implementation of this utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the claims of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A screen printing plate storage device, comprising a frame, a partition rod and a pulley block, the frame comprising a vertical stand and a horizontal bracket, the vertical stand being fixedly connected with the horizontal bracket; a plurality of partition rods are arranged on the frame, so as to divide the frame into a plurality of slots; characterized in that, The bottom of the plurality of grooves is provided with a pad, and the pulley set comprises a base and pulleys arranged in the base, and the base is detachably arranged on the pad.

2. The screen printing plate storage device according to claim 1, wherein The base is arranged on the pad by bolts.

3. The screen printing plate storage device according to claim 1, wherein Each pulley set comprises 2-4 pulleys, and each pad is provided with a plurality of pulley sets.

4. The screen printing plate storage device according to claim 1, wherein The pulleys are covered with a wear-resistant rubber layer.

5. The screen printing frame storage device of claim 1, wherein, The highest point of the pulleys is higher than the highest point of the bracket.

6. The screen printing frame storage device of claim 1, wherein, The thickness of the pad is 0.8-1.2 cm.

7. The screen printing plate storage device according to any one of claims 1 to 6, characterized in that The bracket has a plurality of brackets, and the plurality of brackets separate the frame body into multiple layers.

8. The screen printing frame storage device according to claim 7, wherein, The bottom of the plurality of brackets is provided with a bottom plate.

9. The screen printing frame storage device of claim 7, wherein, The separation rod is a round rod.

10. The screen printing frame storage device of claim 7, wherein, The separation rod is arranged obliquely to form a triangular structure with the stand and the bracket.

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