Alignment mechanism of screen printing machine

Abstract

The utility model discloses a screen printing machine alignment mechanism which comprises a base, a lifting device is fixed to the side face of the base, a fixing device is movably connected to the front portion of the lifting device, a smearing mechanism is fixed to the front portion of the fixing device, and a silk screen plate is connected to the inner side of the fixing device. According to the alignment mechanism of the screen printing machine, the screen plate can be pulled outwards when not extruded, the screen plate can slide out of the inner side of the fixing device through pulling to be disassembled and replaced, the replacement efficiency of the screen plate is improved, and the product processing and printing efficiency is improved in disguised mode; when the two rotating rollers rotate towards the two sides, a product can be pulled to be tightened through friction force, the product can be leveled when being tightened, and therefore the screen printing quality of the product is improved, when the semi-rings move, friction pads can be driven to move to the surfaces of the rotating rollers for extrusion, and the rotating resistance of the rotating rollers can be increased through extrusion of the friction pads; therefore, the leveling force of the rotating roller can be adjusted.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing machines, in particular to a screen printing machine alignment mechanism. Background Art

[0002] A screen printer is a traditional printing process equipment, also known as a silk screen printer. It applies ink on the screen and then uses pressure to print the ink onto the surface of the object to be printed. It is widely used in the fields of advertising, toys and clothing.

[0003] In the prior art, a Chinese patent with the authorization announcement number CN217835058U discloses a screen printing machine alignment mechanism for motherboard manufacturing, which belongs to the field of screen printing machines. Its technical points include a fixed block installed on the top of the workbench, a first electric telescopic rod installed on one side of the fixed block, a guide rail installed on the top of the workbench, and a slider installed on the guide rail. In the utility model, two second electric telescopic rods are used to drive two push rods to move, and the spacing between the two push rods is adjusted, so that motherboards of different sizes can be conveniently fixed, and the first electric contraction rod is used to drive the bearing plate to move, and the bearing plate drives the connecting block to move along the guide rail, and then the bearing plate drives the motherboard to move to the bottom of the screen printing mechanism, and the motherboard is processed. The slider is blocked by a limit pin to ensure the accurate position of the bearing plate after moving, thereby ensuring the processing quality of the motherboard, and the practicality is good.

[0004] At present, most screen printing machines on the market still have certain shortcomings when in use. As shown in the above document, the device blocks the slider through the limit pin to ensure the accurate position of the carrier plate after movement. However, the device may need to replace the screen plate according to different colors or different patterns on the pattern during screen printing. The traditional replacement method requires the disassembly of the four threaded fixing devices, which is very time-consuming. Secondly, when the device encounters wrinkled clothes, the printing quality will be greatly reduced, which may cause major defects in the product and thus damage it, making it more troublesome to use. Utility Model Content

[0005] The utility model aims to provide a screen printing machine alignment mechanism to solve the problems in the background art that the alignment mechanism is inconvenient for quickly replacing the screen plate and the device is inconvenient for leveling wrinkles.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a screen printing machine alignment mechanism, comprising a base, a lifting device is fixed to the side of the base, a fixing device is movably connected to the front of the lifting device, a smearing mechanism is fixed to the front of the fixing device, and a screen plate is connected to the inner side of the fixing device;

[0007] The fixing device is provided with a rotating groove through the side surface, a rotating rod is rotated through the rotating groove, a first bevel gear is fixed to the end of the rotating rod, one end of a double-headed bevel gear rod is meshed and connected with both sides of the first bevel gear, the double-headed bevel gear rod passes through the connecting block, the connecting block is fixed in the rotating groove, the other end of the double-headed bevel gear rod is meshed and connected with a second bevel gear, the second bevel gear rotates in the rotating groove through a bearing, a threaded ring is fixed on the top of the second bevel gear, a guide block is fixed in the rotating groove, a first threaded rod passes through the rotating groove, the second bevel gear and the threaded ring, a guide groove is provided on the side surface of the first threaded rod, a pressing block is fixed at the bottom end of the first threaded rod, and an extrusion mechanism for positioning the screen plate is provided in the rotating groove;

[0008] Two groups of first rotating blocks are fixed at the bottom of the fixing device, and a leveling mechanism for squeezing the product is arranged at the bottom of the fixing device.

[0009] Furthermore, the connecting block and the double-headed bevel gear rod form a rotating structure, the threaded ring and the first threaded rod are threadedly connected, and the guide block and the guide groove form a sliding connection.

[0010] Furthermore, the leveling mechanism includes a first rotating block, and the first rotating block is rotatably connected to the inner side of the first rotating block, and a rotating roller is rotatably connected between the first rotating blocks.

[0011] Furthermore, a second rotating block is fixed on the upper surface of the first rotating block, a second rotating block is rotatably connected inside the second rotating block, and a sliding block is connected to the top end of the second rotating block.

[0012] Furthermore, the sliding block slides inside a slide groove, the slide groove is provided at the bottom of the fixing device, a spring is connected between the first rotating block and the fixing device, and an adjusting mechanism for squeezing the rotating roller is provided on the side of the first rotating block.

[0013] Furthermore, the adjustment mechanism includes a fixed block, and the fixed block is fixed to the side of the first rotating block, and a second threaded rod is threadedly connected to the inside of the fixed block.

[0014] Furthermore, the bottom end of the second threaded rod is rotatably connected to a half ring via a bearing, and a friction pad is connected to the inner side of the half ring.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The alignment mechanism of the screen printer can pull the screen plate outward when it is not squeezed. The screen plate can slide out of the inner side of the fixing device by pulling it for disassembly and replacement, which improves the efficiency of screen plate replacement and improves the efficiency of product processing and printing in disguise. When the fixing device of the screen printer moves downward, it can drive the rotating roller to move. When the two rotating rollers rotate to both sides, the friction force can pull the product to be tightened. When the product is tightened, it will be flattened, thereby improving the quality of product screen printing. When the semi-ring moves, it can drive the friction pad to move to the surface of the rotating roller for squeezing. The squeezing of the friction pad can increase the resistance of the rotating roller, so that the leveling force of the rotating roller can be adjusted, and the adaptability of the leveling mechanism to the product is improved;

[0017] 2. A first bevel gear and a double-headed bevel gear rod are provided, and the first bevel gear can simultaneously drive the two double-headed bevel gear rods to rotate, so that the wire mesh plate can be quickly disassembled and positioned, thereby improving the efficiency of replacing the wire mesh plate;

[0018] 3. A guide block and a guide groove are provided, and the guide block can prevent the first threaded rod from rotating when the thread slides, and the guide block can limit the guide groove to prevent the first threaded rod from being separated from the threaded ring;

[0019] 4. A spring is provided, which can increase the force of the rotating roller when squeezing the product to level it, thus improving the leveling effect;

[0020] 5. A friction pad is provided, and the resistance of the rotating roller when the rotating roller rotates through the first rotating block can be adjusted by squeezing the rotating roller with the friction pad, thereby further improving the leveling effect of the rotating roller, and the operation is convenient and durable. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall front-view three-dimensional structure of the utility model;

[0022] Figure 2 This is an enlarged three-dimensional structural diagram of the wire mesh plate of the utility model;

[0023] Figure 3 This is a schematic diagram of the cross-sectional three-dimensional structure of the fixing device of the utility model;

[0024] Figure 4 This is an enlarged three-dimensional structural diagram of the threaded ring of the utility model;

[0025] Figure 5 This is an enlarged three-dimensional structural diagram of the rotating roller of the utility model;

[0026] Figure 6 This is a schematic diagram of the cutaway three-dimensional structure of the chute of the utility model;

[0027] Figure 7 It is a schematic diagram of the semi-circular cutaway three-dimensional structure of the utility model.

[0028] In the figure: 1, base; 2, lifting device; 3, fixing device; 4, coating mechanism; 5, screen plate; 301, rotating groove; 302, rotating rod; 303, first bevel gear; 304, double-headed bevel gear rod; 305, connecting block; 306, second bevel gear; 307, threaded ring; 308, guide block; 309, first threaded rod; 310, guide groove; 311, first rotating block; 312, first rotating block; 313, rotating roller; 314, second rotating block; 315, second rotating block; 316, slider; 317, slide groove; 318, spring; 319, fixing block; 320, second threaded rod; 321, half ring; 322, friction pad. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Embodiment 1: Figure 1-Figure 4 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the alignment mechanism of the screen printing machine is inconvenient to quickly replace the screen plate 5, which affects the printing efficiency of the product, an extrusion mechanism is disclosed:

[0031] The base 1 includes a lifting device 2 fixed on the side of the base 1, a fixing device 3 movably connected to the front of the lifting device 2, a coating mechanism 4 fixed to the front of the fixing device 3, a screen plate 5 connected to the inner side of the fixing device 3, a rotating groove 301 penetrating through the side of the fixing device 3, a rotating rod 302 penetrating and rotating inside the rotating groove 301, a first bevel gear 303 fixed to the end of the rotating rod 302, one end of a double-headed bevel gear rod 304 meshingly connected to both sides of the first bevel gear 303, the double-headed bevel gear rod 304 penetrates inside the connecting block 305, the connecting block 305 is fixed inside the rotating groove 301, and the other end of the double-headed bevel gear rod 304 meshes and connects There is a second bevel gear 306, which rotates inside the rotating groove 301 through a bearing, a threaded ring 307 is fixed on the top of the second bevel gear 306, a guide block 308 is fixed inside the rotating groove 301, a first threaded rod 309 passes through the rotating groove 301, the second bevel gear 306 and the threaded ring 307, a guide groove 310 is opened on the side of the first threaded rod 309, a pressure block is fixed to the bottom of the first threaded rod 309, an extrusion mechanism for positioning the screen plate 5 is arranged inside the rotating groove 301, two groups of first rotating blocks 311 are fixed at the bottom of the fixing device 3, and a leveling mechanism for extruding the product is arranged at the bottom of the fixing device 3.

[0032] The connecting block 305 and the double-headed bevel gear rod 304 form a rotating structure, the threaded ring 307 and the first threaded rod 309 are threadedly connected, and the guide block 308 and the guide groove 310 form a sliding connection. When the screen plate 5 is replaced, the rotating rod 302 can rotate through the rotating groove 301, and the rotating rod 302 can drive the first bevel gear 303 to rotate when it rotates. When the first bevel gear 303 rotates, it can drive the two double-headed bevel gear rods 304 to engage and rotate. When the double-headed bevel gear rod 304 engages and rotates, it can rotate through the connecting block 305. When the double-headed bevel gear rod 304 rotates, it can drive the second bevel gear 306 to engage and rotate. The second bevel gear When 306 is engaged and rotated, it can rotate through the bearing at the bottom. When the second bevel gear 306 rotates, it can drive the threaded ring 307 to rotate. When the threaded ring 307 rotates, it can drive the first threaded rod 309 to slide. When the first threaded rod 309 slides, the guide groove 310 can slide through the guide block 308. When the first threaded rod 309 slides, the bottom pressure block can move upward out of the surface of the screen plate 5 frame. When the screen plate 5 is not squeezed, it can be pulled outward. The screen plate 5 can be pulled out of the inner side of the fixing device 3 for disassembly and replacement, thereby improving the efficiency of replacing the screen plate 5 and indirectly improving the efficiency of product processing and printing.

[0033] Embodiment 2: Figure 1 , Figure 5 and Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the product may have wrinkles before the alignment mechanism is screen-printed, which affects the quality of screen printing, a flattening mechanism is disclosed:

[0034] The leveling mechanism includes a first rotating block 312, and the first rotating block 312 is rotatably connected to the inner side of the first rotating block 311, a rotating roller 313 is rotatably connected between the first rotating block 312, a second rotating block 314 is fixed to the upper surface of the first rotating block 312, a second rotating block 315 is rotatably connected to the inner side of the second rotating block 314, a slider 316 is connected to the top of the second rotating block 315, the slider 316 slides inside the slide groove 317, the slide groove 317 is provided at the bottom of the fixing device 3, a spring 318 is connected between the first rotating block 312 and the fixing device 3, an adjustment mechanism for squeezing the rotating roller 313 is provided on the side of the first rotating block 312, and when the fixing device 3 of the screen printing machine moves downward The rotating roller 313 can be driven to move, and the rotating roller 313 can be pressed when it moves to the surface of the product. When the rotating roller 313 is pressed, it can drive the first rotating block 312 to rotate through the first rotating block 311. When the first rotating block 312 rotates, the second rotating block 314 can drive the second rotating block 315 to rotate. When the second rotating block 315 rotates, it can push the slider 316 to move. When the slider 316 moves, it can slide through the slide groove 317. When the first rotating block 312 rotates, the spring 318 can be squeezed through the fixing device 3. When the two rotating rollers 313 rotate to both sides, the friction force can be used to pull the product tight. When the product is tight, it will be flattened, thereby improving the silk screen printing quality of the product.

[0035] Embodiment 3: Figure 6 The technical solution shown in the figure, the present invention provides the following technical solution: In order to solve the problem that the leveling mechanism needs different forces when leveling different products, on the basis of the second embodiment, an adjustment mechanism is disclosed:

[0036] The adjusting mechanism includes a fixed block 319, and the fixed block 319 is fixed to the side of the first rotating block 312. The fixed block 319 has a second threaded rod 320 threadedly connected thereto. The bottom end of the second threaded rod 320 is rotatably connected to a semi-ring 321 through a bearing. The inner side of the semi-ring 321 is connected to a friction pad 322. When the screen printing machine needs to adjust the resistance of the rotating roller 313, the second threaded rod 320 can be threadedly slid through the fixed block 319 by rotating the second threaded rod 320. When the second threaded rod 320 slides, the bearing can be driven to rotate and move when the thread slides. When the bearing rotates, the second threaded rod 320 and the semi-ring 321 can be driven to rotate. When the bearing moves, the semi-ring 321 can be pushed to move. When the semi-ring 321 moves, the friction pad 322 can be driven to move to the surface of the rotating roller 313 for extrusion. The extrusion of the friction pad 322 can increase the resistance to the rotation of the rotating roller 313, thereby adjusting the leveling force of the rotating roller 313, thereby improving the adaptability of the leveling mechanism to the product.

[0037] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A screen printing machine alignment mechanism, comprising a base (1), a lifting device (2) fixed to the side of the base (1), a fixing device (3) movably connected to the front of the lifting device (2), a coating mechanism (4) fixed to the front of the fixing device (3), a screen plate (5) connected to the inner side of the fixing device (3), characterized in that ； A rotating groove (301) is formed through the side of the fixing device (3), a rotating rod (302) is rotatably formed through the rotating groove (301), a first bevel gear (303) is fixed to the end of the rotating rod (302), one end of a double-headed bevel gear rod (304) is meshedly connected to both sides of the first bevel gear (303), the double-headed bevel gear rod (304) passes through the interior of a connecting block (305), the connecting block (305) is fixed to the interior of the rotating groove (301), the other end of the double-headed bevel gear rod (304) is meshedly connected to a second bevel gear (306), and the second bevel gear (306) is meshedly connected to the other end of the double-headed bevel gear rod (304). The gear (306) rotates inside the rotating groove (301) via a bearing; a threaded ring (307) is fixed on the top of the second bevel gear (306); a guide block (308) is fixed inside the rotating groove (301); a first threaded rod (309) penetrates the rotating groove (301), the second bevel gear (306) and the threaded ring (307); a guide groove (310) is provided on the side of the first threaded rod (309); a pressing block is fixed at the bottom end of the first threaded rod (309); and a pressing mechanism for positioning the screen plate (5) is provided inside the rotating groove (301); Two groups of first rotating blocks (311) are fixed at the bottom of the fixing device (3), and a flattening mechanism for squeezing the product is arranged at the bottom of the fixing device (3).

2. The screen printing machine alignment mechanism according to claim 1, characterized in that: The connecting block (305) and the double-headed conical gear rod (304) form a rotating structure, the threaded ring (307) and the first threaded rod (309) are threadedly connected, and the guide block (308) and the guide groove (310) form a sliding connection.

3. The screen printing machine alignment mechanism according to claim 1, characterized in that: The leveling mechanism comprises a first rotating block (312), and the first rotating block (312) is rotatably connected to the inner side of the first rotating block (311), and a rotating roller (313) is rotatably connected between the first rotating blocks (312).

4. The screen printing machine alignment mechanism according to claim 3, characterized in that: A second rotating block (314) is fixed on the upper surface of the first rotating block (312), a second rotating block (315) is rotatably connected inside the second rotating block (314), and a sliding block (316) is connected to the top of the second rotating block (315).

5. The screen printing machine alignment mechanism according to claim 4, characterized in that: The slider (316) slides inside a slide groove (317), the slide groove (317) is provided at the bottom of the fixing device (3), a spring (318) is connected between the first rotating block (312) and the fixing device (3), and an adjustment mechanism for squeezing the rotating roller (313) is provided on the side of the first rotating block (312).

6. The screen printing machine alignment mechanism according to claim 5, characterized in that: The adjustment mechanism comprises a fixed block (319), wherein the fixed block (319) is fixed to the side of the first rotating block (312), and a second threaded rod (320) is threadedly connected to the interior of the fixed block (319).

7. The screen printing machine alignment mechanism according to claim 6, characterized in that: The bottom end of the second threaded rod (320) is rotatably connected to a half ring (321) via a bearing, and a friction pad (322) is connected to the inner side of the half ring (321).

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