Screen printing equipment with positioning and correcting mechanism

Abstract

The utility model discloses screen printing equipment with a positioning and correcting mechanism, which comprises a printing table and a printing stock arranged at the upper end of the printing table, and further comprises a printing unit, a positioning and correcting unit and a control unit, and the printing unit comprises a printing component which is arranged at the upper end of the printing stock and is used for pre-pressing and printing the printing stock; the adjusting assembly is mounted at the upper end of the printing table and used for adjusting the position of the printing assembly; and the positioning and correcting unit is arranged on one side of the adjusting assembly and used for positioning the periphery of the printing stock. The pressing plate is pushed to move downwards through the jacking spring, the pressing plate positions the printing stock, when the printing stock needs to be corrected, only the pull rod needs to be pulled upwards, the pull rod drives the pressing plate to be separated from the printing stock through the guide shaft, correction adjustment can be conducted on the printing stock, and after adjustment is completed, the pull rod is released, so that the printing stock is corrected. In this way, the printing stock can be positioned again through the downward jacking acting force of the jacking spring on the pressing plate, and therefore the effect that the printing stock can be flexibly adjusted and quickly positioned is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of screen printing, in particular to a screen printing device with a positioning and correction mechanism. Background Art

[0002] Screen printing refers to using a silk screen as a base and making a screen printing plate with images through a photosensitive plate-making method. Screen printing consists of five major elements: screen printing plate, scraper, ink, printing table and substrate. Printing is based on the basic principle that the mesh holes of the image part of the screen printing plate can pass the ink, while the mesh holes of the non-image part cannot pass the ink. When printing, pour ink at one end of the screen printing plate, use a scraper to apply a certain pressure to the ink part on the screen printing plate, and move at a constant speed toward the other end of the screen printing plate. During the movement, the ink is squeezed from the mesh holes of the image part to the substrate by the scraper;

[0003] However, in the printing process, the silk screen printing equipment in the prior art usually only presses the four sides of the substrate by means of a pressure plate, and then uses a scraper to scrape the ink onto the surface of the substrate. However, the existing pressure plate cannot be flexibly adjusted after positioning the substrate. When the substrate is skewed, it is difficult to quickly separate the pressure plate from the substrate, which is not conducive to positioning and correcting the substrate. In addition, during the process of scraping ink, the existing scraper lacks pre-pressing of the substrate, which easily causes local wrinkles caused by the separation of the substrate from the upper surface of the printing table, resulting in printing defects.

[0004] The above contents are only used to assist in understanding the technical solution of the present invention, and do not constitute an admission that the above contents are the closest prior art. Utility Model Content

[0005] The purpose of the utility model is to provide a screen printing device with a positioning and correction mechanism to solve the problem that the existing pressure plate mentioned in the above background technology cannot be flexibly adjusted after positioning the substrate, and when the substrate is skewed, it is difficult to quickly separate the pressure plate and the substrate, which is not conducive to positioning and correcting the substrate. In addition, during the process of scraping ink, the existing scraper lacks pre-pressing work on the substrate, which easily causes local wrinkles caused by separation of the substrate from the upper surface of the printing table, resulting in printing defects.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A screen printing device with a positioning and correction mechanism comprises a printing table, a substrate placed on the upper end of the printing table, and further comprises:

[0008] The printing unit comprises a printing assembly disposed on the upper end of the substrate for pre-pressing and printing the substrate, and an adjusting assembly mounted on the upper end of the printing table for adjusting the position of the printing assembly;

[0009] The positioning correction unit is arranged on one side of the adjustment component and is used for positioning the four sides of the printing material.

[0010] Furthermore, the adjustment component includes:

[0011] A second bracket, fixedly connected to one side of the printing table;

[0012] A first guide rail, fixedly connected to one side of the second bracket;

[0013] a second guide rail, slidably connected to one side of the second guide rail;

[0014] A cylinder mounted on the upper end of the second guide rail;

[0015] The lifting arm is slidably inserted in the second guide rail and connected to the driving end of the cylinder, and is used for adjusting the position of the printing unit.

[0016] Furthermore, the printing assembly comprises:

[0017] A first extension rod, fixedly connected to the lower end of the lifting arm;

[0018] The screed plate is fixedly connected to the lower end of the first extension rod and is used to flatten the substrate before printing.

[0019] Furthermore, the printing assembly also includes:

[0020] A second extension rod, fixedly connected to the lower end of the lifting arm and located on one side of the first extension rod;

[0021] The scraper is fixedly connected to the lower end of the second extension rod and is used for scraping ink from the printing material after being flattened by the trowel plate.

[0022] Furthermore, the positioning correction unit includes:

[0023] A curved beam fixedly connected to both ends of the printing table;

[0024] Two sets of cross beams are provided in parallel with each other and fixedly connected to the inner side of the curved beam;

[0025] The card holder has two sets of fixed connections corresponding to the upper end of each beam;

[0026] A first bracket, fixedly connected to the upper end of the card holder, the first bracket is set to be L-shaped, and a guide hole is provided at the upper end of the first bracket;

[0027] A guide shaft is inserted into the guide hole for sliding up and down movement;

[0028] A pressing plate, fixedly connected to the lower end of the guide shaft, the four corners of the pressing plate correspond to the lower ends of the four groups of guide shafts one by one, the pressing plate is in a square shape, and the trowel plate and the scraper are located in the opening of the pressing plate;

[0029] There are two groups of pull rods, which are respectively fixedly connected between two groups of guide shafts arranged oppositely, and the two groups of pull rods are parallel to each other.

[0030] Furthermore, a tensioning spring is sleeved on the outer side of the guide shaft and between the pressure plate and the first bracket, and is used to tighten the pressure plate against the upper end of the printing substrate.

[0031] Compared with the prior art, the beneficial effects of the utility model are:

[0032] 1. The utility model pulls the pull rod upwards, and the pull rod drives the pressure plate to move upwards through the guide shaft, so that the tensioning spring is gradually compressed, the pressure plate is separated from the printing table, and the substrate to be printed is placed on the upper end of the printing table, and the pull rod is released. At this time, the tensioning spring pushes the pressure plate to move downward, and the pressure plate positions the substrate. When the substrate needs to be corrected, it is only necessary to pull the pull rod upwards so that the pull rod drives the pressure plate to separate from the substrate through the guide shaft, and the substrate can be corrected and adjusted. After the adjustment is completed, the pull rod is released, and the substrate can be positioned again by the force of the tensioning spring on the pressure plate to press downward, thereby achieving the effect of being able to flexibly adjust the substrate and quickly position the substrate.

[0033] 2. After the printing substrate is corrected and positioned, the utility model starts the cylinder, and the cylinder drives the first extension rod and the second extension rod to move downward through the lifting arm, and the first extension rod drives the squeegee plate to move downward until it contacts the printing substrate, and at the same time, the second extension rod drives the scraper plate to move downward until it contacts the printing substrate, and then, the lifting arm is pushed along the extension direction of the first guide rail, and the lifting arm drives the squeegee plate to flatten the printing substrate through the first extension rod, and at the same time, the lifting arm drives the scraper plate to print the flattened substrate through the second extension rod, thereby achieving the ability to flatten and pre-press the printing substrate during the scraper scraping ink process, thereby avoiding separation and wrinkles between the printing substrate and the surface of the printing table, which causes printing defects. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0035] Figure 2 This is a schematic diagram of the structure of the adjustment component of the utility model;

[0036] Figure 3 This is a schematic diagram of the structure of the positioning and correction unit of the utility model;

[0037] Figure 4This is a schematic diagram of the structure of the printing assembly of the utility model.

[0038] Figure numerals: 100, printing table; 101, substrate; 1, positioning correction unit; 2, printing unit; 11, holder; 12, first bracket; 121, guide hole; 13, guide shaft; 14, tension spring; 15, pressure plate; 16, pull rod; 17, crossbeam; 18, bending beam; 21, adjustment assembly; 211, second bracket; 212, first guide rail; 213, second guide rail; 214, cylinder; 215, lifting arm; 22, printing assembly; 221, first extension rod; 222, squeegee; 223, second extension rod; 224, scraper. DETAILED DESCRIPTION

[0039] 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.

[0040] See also Figure 1-4 , the utility model provides a technical solution:

[0041] A screen printing device with a positioning correction mechanism includes a printing table 100, a substrate 101 placed on the upper end of the printing table 100, and further includes:

[0042] The printing unit 2 includes a printing assembly 22 disposed on the upper end of the substrate 101 for pre-pressing and printing the substrate 101, and an adjusting assembly 21 installed on the upper end of the printing table 100 for adjusting the position of the printing assembly 22;

[0043] The positioning correction unit 1 is disposed on one side of the adjustment component 21 and is used to position the four sides of the substrate 101 .

[0044] As an improvement, Figure 1-2 As shown, the adjustment component 21 includes:

[0045] A second bracket 211 is fixedly connected to one side of the printing table 100;

[0046] A first guide rail 212, fixedly connected to one side of the second bracket 211;

[0047] A second guide rail 213, slidably connected to one side of the second guide rail 213;

[0048] A cylinder 214, mounted on the upper end of the second guide rail 213;

[0049] The lifting arm 215 is slidably inserted in the second guide rail 213 and connected to the driving end of the cylinder 214 , so as to adjust the position of the printing unit 2 .

[0050] Further, such as Figure 4 As shown, the printing assembly 22 includes:

[0051] A first extension rod 221, fixedly connected to the lower end of the lifting arm 215;

[0052] The screed plate 222 is fixedly connected to the lower end of the first extension rod 221 and is used to flatten the substrate 101 before printing.

[0053] The lower ends of the trowel plate 222 and the scraper plate 224 are located at the same horizontal plane.

[0054] Furthermore, the printing assembly 22 further includes:

[0055] A second extension rod 223, fixedly connected to the lower end of the lifting arm 215 and located on one side of the first extension rod 221;

[0056] The scraper 224 is fixedly connected to the lower end of the second extension rod 223 and is used to scrape ink off the printing material 101 after it is flattened by the trowel plate 222.

[0057] Among them, Figure 2-3 As shown, the positioning correction unit 1 includes:

[0058] A curved beam 18, fixedly connected to both ends of the printing table 100;

[0059] Two sets of cross beams 17 are provided in parallel with each other and are fixedly connected to the inner side of the curved beam 18;

[0060] The card holder 11 has two groups fixedly connected to the upper end of each crossbeam 17;

[0061] A first bracket 12, fixedly connected to the upper end of the card holder 11, the first bracket 12 is L-shaped, and a guide hole 121 is provided at the upper end of the first bracket 12;

[0062] The guide shaft 13 is inserted into the guide hole 121 by sliding up and down;

[0063] A pressing plate 15 is fixedly connected to the lower end of the guide shaft 13. The four corners of the pressing plate 15 correspond to the lower ends of the four groups of guide shafts 13. The pressing plate 15 is in a square shape. The trowel plate 222 and the scraper 224 are located in the opening of the pressing plate 15.

[0064] There are two groups of pull rods 16, which are respectively fixedly connected between two groups of guide shafts 13 arranged opposite to each other, and the two groups of pull rods 16 are parallel to each other.

[0065] In addition, if Figure 3 As shown, a tensioning spring 14 is sleeved outside the guide shaft 13 and between the pressure plate 15 and the first bracket 12 , and is used to tighten the pressure plate 15 against the upper end of the printing material 101 .

[0066] It should be noted that: Figure 1-3 As shown, in the specific implementation process of the present invention, the pull rod 16 is pulled upward, and the pull rod 16 drives the pressure plate 15 to move upward through the guide shaft 13, so that the tension spring 14 is gradually compressed, and the pressure plate 15 is separated from the printing table 100, and the substrate 101 to be printed is placed on the upper end of the printing table 101, and the pull rod 16 is released. At this time, the tension spring 14 pushes the pressure plate 15 to move downward, and the pressure plate 15 positions the substrate 101. When the substrate 101 needs to be corrected, it is only necessary to pull the pull rod 16 upward so that the pull rod 16 drives the pressure plate 15 to separate from the substrate 101 through the guide shaft 13, and the substrate 101 can be corrected and adjusted. After the adjustment is completed, the pull rod 16 is released, and the substrate 101 can be positioned again by the force of the tension spring 14 pressing the pressure plate 15 downward, thereby achieving the effect of being able to flexibly adjust the substrate 101 and quickly position the substrate 101.

[0067] like Figure 1 , Figure 4 As shown, after the substrate 101 is corrected and positioned, the cylinder 214 is started, and the cylinder 214 drives the first extension rod 221 and the second extension rod 223 to move downward through the lifting arm 215. The first extension rod 221 drives the squeegee 222 to move downward until it contacts the substrate 101. At the same time, the second extension rod 223 drives the scraper 224 to move downward until it contacts the substrate 101. Subsequently, the lifting arm 215 is pushed along the extension direction of the first guide rail 212. The lifting arm 215 drives the squeegee 222 to flatten the substrate 101 through the first extension rod 221. At the same time, the lifting arm 215 drives the scraper 224 to print the flattened substrate 101 through the second extension rod 223, thereby achieving the goal of flattening and pre-pressing the substrate 101 during the process of the scraper 224 scraping the ink, thereby avoiding separation wrinkles between the substrate 101 and the upper surface of the printing table 100, which causes printing defects.

[0068] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0069] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screen printing device with a positioning correction mechanism, comprising a printing table (100), a substrate (101) placed on the upper end of the printing table (100), characterized in that: Also includes: A printing unit (2) comprising a printing assembly (22) disposed on the upper end of the printing substrate (101) for pre-pressing and printing the printing substrate (101), and an adjusting assembly (21) mounted on the upper end of the printing table (100) for adjusting the position of the printing assembly (22); The positioning correction unit (1) is arranged on one side of the adjustment component (21) and is used to position the four sides of the printing material (101).

2. The screen printing device with a positioning and correction mechanism according to claim 1, characterized in that: The adjustment component (21) comprises: A second bracket (211) is fixedly connected to one side of the printing table (100); A first guide rail (212) fixedly connected to one side of the second bracket (211); A second guide rail (213) slidably connected to one side of the second guide rail (213); A cylinder (214) mounted on the upper end of the second guide rail (213); A lifting arm (215) is slidably inserted into the second guide rail (213) and connected to the driving end of the cylinder (214), and is used to adjust the position of the printing unit (2).

3. The screen printing device with a positioning and correction mechanism according to claim 2, characterized in that: The printing assembly (22) comprises: A first extension rod (221) fixedly connected to the lower end of the lifting arm (215); The screed plate (222) is fixedly connected to the lower end of the first extension rod (221) and is used to flatten the substrate (101) before printing.

4. The screen printing device with a positioning and correction mechanism according to claim 3, characterized in that: The printing assembly (22) further comprises: A second extension rod (223) fixedly connected to the lower end of the lifting arm (215) and located on one side of the first extension rod (221); The scraper (224) is fixedly connected to the lower end of the second extension rod (223) and is used to scrape ink off the printing material (101) after being flattened by the trowel plate (222).

5. The screen printing device with a positioning and correction mechanism according to claim 4, characterized in that: The positioning correction unit (1) comprises: A curved beam (18) fixedly connected to both ends of the printing table (100); Two sets of cross beams (17) are arranged parallel to each other and fixedly connected to the inner side of the curved beam (18); The card seat (11) has two groups fixedly connected to the upper end of each cross beam (17); A first bracket (12) is fixedly connected to the upper end of the card seat (11), the first bracket (12) is configured to be L-shaped, and a guide hole (121) is provided at the upper end of the first bracket (12); A guide shaft (13) is inserted into the guide hole (121) in a manner that it can slide up and down; A pressing plate (15) is fixedly connected to the lower end of the guide shaft (13), the four corners of the pressing plate (15) correspond one to one with the lower ends of the four groups of guide shafts (13), the pressing plate (15) is in a square shape, and the trowel plate (222) and the scraper (224) are located in the opening of the pressing plate (15); The pull rods (16) are provided in two groups, which are respectively fixedly connected between two groups of guide shafts (13) arranged opposite to each other, and the two groups of pull rods (16) are parallel to each other.

6. The screen printing device with a positioning and correction mechanism according to claim 5, characterized in that: A tensioning spring (14) is sleeved outside the guide shaft (13) and located between the pressure plate (15) and the first bracket (12), and is used to tighten the pressure plate (15) against the upper end of the printing material (101).

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