Distance-adjustable printing screen

Abstract

The utility model discloses a distance-adjustable printing screen, which belongs to the field of screen printing machine equipment and comprises a screen printing machine body. Two sets of linear sliding rails are assembled on the screen printing machine body, a first limiting assembly is assembled between the two sets of linear sliding rails in a sliding mode, two sets of second limiting assemblies are assembled on the first limiting assembly, and a printing screen plate is arranged on the upper end faces of the two sets of second limiting assemblies in a bearing mode. According to the distance-adjustable printing screen plate, due to the fact that the two second limiting assemblies are connected with the printing screen plate in an inserted mode for use, the printing screen plate can be rapidly installed, and meanwhile a user can adjust and install the printing screen plate by prefabricating printing screen plates of different sizes in cooperation with the two second limiting assemblies; compared with a traditional screw positioning mode, the screen printing device has the advantages that the printing screens with different screen printing distances can be quickly mounted, and meanwhile, the printing screens are convenient to mount and dismount.

Description

Technical Field

[0001] The utility model belongs to the field of screen printing equipment, and in particular relates to a printing screen with adjustable distance. Background Art

[0002] Screen printing, also known as silk screen, is a traditional printing technology. Screen printing machines are widely used for surface printing of various materials, including paper, plastic, metal, glass, fabric, etc. The basic principle is to use a silk screen (usually made of nylon, polyester or stainless steel) as a template. The part of the silk screen corresponding to the printing pattern is an open mesh, while the non-printing part is sealed. During printing, the ink penetrates from the open mesh part to the substrate through the pressure of the scraper to form a pattern.

[0003] In actual production use, the printing screens required for screen printing are mostly installed and used by positioning them on the screen printing machine using bolts. However, using bolts to fix the screens requires a certain amount of installation time and positioning tools, which makes the disassembly and assembly efficiency low when replacing screens of different sizes or patterns, increasing the production preparation time. At the same time, the bolt assembly method limits the flexibility of the equipment, making it difficult to quickly adapt to printing needs of different sizes or shapes, reducing the versatility and efficiency of the equipment. Therefore, a printing screen with adjustable distance is proposed to solve the above problems. Utility Model Content

[0004] In view of one or more of the above defects or improvement needs of the prior art, the utility model provides a distance-adjustable printing screen, which has the advantages of being able to quickly assemble the printing screen and being able to quickly install printing screens with different printing distances.

[0005] To achieve the above-mentioned purpose, the utility model provides a printing screen with adjustable distance, including a screen printer body;

[0006] The screen printing machine body is provided with two sets of linear slide rails, a first limit assembly is provided between the two sets of linear slide rails, two sets of second limit assemblies are provided on the first limit assembly, and the upper end surfaces of the two sets of second limit assemblies are provided with printing screens; the bottom of the printing screen is provided with four positioning blocks in a rectangular shape, and each positioning block is provided with a positioning groove;

[0007] The first limit assembly includes a mobile platform arranged on two sets of linear slide rails, support plates are vertically arranged on both sides of the mobile platform, mounting plates are installed on the sides of the support plates, the mounting plates are bent in an L shape and a number of positioning bolts are installed along the transverse surface thereof;

[0008] The two groups of the second limiting components include a positioning seat arranged on the mobile platform, the positioning seat is U-shaped as a whole and has limiting grooves on both sides of its upper end surface, and the limiting grooves are connected and opened in an L shape; the upper end surface of the positioning seat is also integrally provided with a center seat, and two positioning brackets are slidably arranged in the center seat, and the two positioning brackets respectively correspond to one of the limiting grooves and are adapted to be plugged with the limiting grooves;

[0009] The two positioning blocks on the same side are respectively arranged on both sides of the central seat, and the positioning bracket is adapted to be plugged into the positioning groove in size.

[0010] As a further improvement of the utility model, a positioning rubber block is connected to the bottom of each positioning bolt, and the model and thickness of several positioning rubber blocks are set to be consistent.

[0011] As a further improvement of the present invention, the second limiting assembly also includes two grooves opened on the side of the center seat, the two grooves are arranged in parallel and each has a slider slidably arranged therein, and the two sliders are respectively connected to one of the side surfaces of the positioning support.

[0012] As a further improvement of the present invention, a swivel seat is installed on the side of the center seat in the two groups of the second limiting components. The swivel seat is provided with a slot and a bearing is respectively installed on both sides thereof. A rotating shaft tube is rotatably arranged between the two bearings.

[0013] As a further improvement of the present invention, both ends of the rotating shaft tube in the two groups of the second limiting components pass through an adjacent bearing and are connected with a positive and negative screw rod. The two positive and negative screw rods in the same group of the second limiting components are arranged in opposite spiral directions, and the two positive and negative screw rods are respectively engaged with an adjacent slider.

[0014] In general, compared with the prior art, the above technical solutions conceived by the utility model have the following beneficial effects:

[0015] The distance-adjustable printing screen of the utility model can be used in actual use. By means of the mutual movement and coordination of a plurality of components in the two sets of second limit assemblies, the user can realize the rapid plug-in installation of the printing screen on the two sets of second limit assemblies by controlling the plug-in limit between the positioning support and the positioning groove and coordinating the plug-in between the positioning support and the limit groove. Through the plug-in use between the two sets of second limit assemblies and the printing screen, not only can the installation of the printing screen be realized quickly, so as to facilitate the rapid disassembly, assembly and replacement of the printing screens with different screen printing distances, but the user can also realize the adjustable installation of the printing screen by prefabricating printing screens of different sizes and coordinating with the two sets of second limit assemblies.

[0016] The utility model discloses a printing screen with adjustable distance. In actual use, when the size of the printing screen is too large, the user first uses two sets of second limit assemblies to perform preliminary positioning on the printing screen, and then places the two ends of the printing screen on the lower end surfaces of a number of positioning bolts. The user can then rotate the positioning bolts until the end of the positioning rubber block is tightly against the top of the printing screen. At this time, the printing screen can be secondary positioned using a number of positioning bolts and positioning rubber blocks. The positioning of the bottom of the printing screen using the two sets of second limit assemblies can achieve stable installation of large-sized printing screens. Compared with the traditional screw positioning method, the present application utilizes the two-way positioning of the second limit assembly and the first limit assembly, which can not only achieve rapid installation of printing screens with different screen printing distances, but also makes the installation of the printing screen portable and easy to assemble and disassemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall installation structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the overall installation structure of the first limiting component of the utility model;

[0019] Figure 3 This is a schematic diagram of the installation structure of the second limit assembly of the utility model on the mobile platform;

[0020] Figure 4 This is a schematic diagram of the structure of the printing screen body of the utility model.

[0021] In all the drawings, the same figure marks represent the same technical features, specifically: 1. screen printing machine body; 2. linear slide rail; 3. first limit assembly; 31. moving platform; 32. support plate; 33. mounting plate; 34. positioning bolt; 35. positioning rubber block; 4. second limit assembly; 41. positioning seat; 42. limiting groove; 43. center seat; 44. positioning support; 45. slider; 46. swivel seat; 47. rotating shaft tube; 48. bearing; 49. positive and negative screw rod; 5. printing screen; 51. positioning block; 52. positioning groove. DETAILED DESCRIPTION

[0022] 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.

[0023] Example

[0024] Depend on Figure 1-4Provided is a printing screen with adjustable distance, comprising a screen printer body 1;

[0025] Two sets of linear slide rails 2 are assembled on the screen printing machine body 1, a first limit assembly 3 is slidably assembled between the two sets of linear slide rails 2, two sets of second limit assemblies 4 are assembled on the first limit assembly 3, and a printing screen 5 is carried on the upper end surfaces of the two sets of second limit assemblies 4; the bottom of the printing screen 5 is rectangular and has four positioning blocks 51, and each positioning block 51 is provided with a positioning groove 52;

[0026] The first limit assembly 3 includes a moving platform 31 arranged on two sets of linear slide rails 2, and support plates 32 are vertically arranged on both sides of the moving platform 31. A mounting plate 33 is installed on the side of the support plate 32. The mounting plate 33 is bent in an L shape and a plurality of positioning bolts 34 are installed along its transverse surface.

[0027] The two sets of second limiting components 4 include a positioning seat 41 arranged on the mobile platform 31. The positioning seat 41 is U-shaped as a whole and has limiting grooves 42 on both sides of its upper end surface. The limiting grooves 42 are connected and opened in an L shape. The upper end surface of the positioning seat 41 is also integrally provided with a center seat 43. Two positioning brackets 44 are slidably arranged in the center seat 43. The two positioning brackets 44 correspond to one of the limiting grooves 42 and are adapted to be plugged with the limiting grooves 42.

[0028] Two positioning blocks 51 on the same side are respectively arranged on both sides of the center seat 43 , and the positioning bracket 44 and the positioning groove 52 are adapted to be plugged in with each other in size.

[0029] In the present embodiment, in actual use, by the mutual movement and coordination of multiple components within the two groups of second limiting assemblies 4, the user can realize the quick plug-in installation of the printing screen 5 on the two groups of second limiting assemblies 4 by controlling the plug-in limit between the positioning support 44 and the positioning groove 52, and coordinating the plug-in between the positioning support 44 and the limiting groove 42; through the plug-in use between the two groups of second limiting assemblies 4 and the printing screen 5, not only can the installation of the printing screen 5 be quickly realized, so as to quickly disassemble and replace the printing screen 5 with different screen printing distances, but the user can also prefabricate printing screens 5 of different sizes and cooperate with the two groups of second limiting assemblies 4 to realize the adjustment and installation of the printing screen 5.

[0030] Furthermore, in actual use, when the size of the printing screen 5 is too large, the user first uses the two groups of second limiting components 4 to perform preliminary positioning on the printing screen 5, and then places the two ends of the printing screen 5 on the lower end surfaces of several positioning bolts 34. The user can then rotate the positioning bolts 34 until the end of the positioning rubber block 35 is tightly against the top of the printing screen 5. At this time, the several positioning bolts 34 and the positioning rubber block 35 can be used to achieve secondary positioning of the printing screen 5. With the positioning of the bottom of the printing screen 5 by the two groups of second limiting components 4, the stable installation of the large-sized printing screen 5 can be achieved. Compared with the traditional screw positioning method, the present application uses the two-way limiting of the second limiting component 4 and the first limiting component 3, which can not only realize the rapid installation of the printing screen 5 with different screen printing distances, but also the installation of the printing screen 5 is portable and easy to disassemble and assemble.

[0031] Furthermore, by setting up a clamping installation between the second limit component 4 and the printing screen 5, the user can quickly adjust the second limit component 4 to adapt to the installation of the printing screen 5 with different screen printing distances, thereby reducing the time required to replace the printing screen 5, thereby improving production efficiency; there is no need to stop the machine for complicated adjustments, and the operator can quickly switch to the next task, reducing the time of production interruption.

[0032] Specifically, refer to Figure 2-3 The bottom of each positioning bolt 34 is connected to a positioning rubber block 35, and the models and thicknesses of the positioning rubber blocks 35 are set to be consistent.

[0033] In this embodiment, in actual use, when the size of the printing screen 5 is too large, considering that the installation of the two groups of second limiting components 4 on the printing screen 5 is not stable enough, in order to ensure that the printing screen 5 with a long screen printing distance can be stably scraped, in a preferred embodiment, the user first uses the two groups of second limiting components 4 to preliminarily position the printing screen 5, and then places the two ends of the printing screen 5 on the lower end surfaces of a number of positioning bolts 34. The user can then rotate the positioning bolts 34 until the end of the positioning rubber block 35 is tightly against the top of the printing screen 5. At this time, the several positioning bolts 34 and the positioning rubber block 35 can be used to achieve secondary positioning of the printing screen 5. Through the tight setting of the positioning rubber block 35 and the top of the printing screen 5, not only can the printing screen 5 be quickly limited, but it can also be adapted to the installation of printing screens 5 of different thicknesses, and the overall use is convenient.

[0034] Specifically, refer to Figure 3 The second limiting assembly 4 also includes two grooves opened on the side of the center seat 43. The two grooves are arranged in parallel and each of them has a slider 45 slidably arranged therein. The two sliders 45 are respectively connected to the side of one of the positioning brackets 44.

[0035] In this embodiment, the groove on the side of the center seat 43 can be used for the sliding of the slider 45. Through the connection between the slider 45 and the positioning bracket 44, when the slider 45 moves, the two positioning brackets 44 can keep synchronous movement with the slider 45.

[0036] Specifically, refer to Figure 3 A swivel seat 46 is installed on the side of the center seat 43 in the two sets of second limit assemblies 4. A slot is opened on the swivel seat 46 and a bearing 48 is respectively installed on both sides thereof. A rotating shaft tube 47 is rotatably arranged between the two bearings 48.

[0037] In this embodiment, the rotating shaft tube 47 and the bearing 48 are rotated together so that the rotating shaft tube 47 can rotate smoothly in the rotating seat 46. In the actual design, the rotating seat 46 has an opening on the top so that the user can turn the rotating shaft tube 47 for use.

[0038] Specifically, refer to Figure 3 Both ends of the rotating shaft tube 47 in the two groups of second limiting components 4 pass through an adjacent bearing 48 and are connected to a positive and negative threaded screw rod 49. The two positive and negative threaded screw rods 49 in the same group of second limiting components 4 are arranged in opposite spiral directions, and the two positive and negative threaded screw rods 49 are respectively engaged with an adjacent slider 45.

[0039] In this embodiment, in actual use, when the rotating shaft tube 47 rotates, the positive and negative threaded rod 49 connected thereto can rotate synchronously. At this time, when the positive and negative threaded rod 49 rotates, it is limited by the thread of the positive and negative threaded rod 49. At this time, the two sliders 45 engaged with the outside of the positive and negative threaded rod 49 will drive the positioning bracket 44 to perform synchronous linear motion;

[0040] Furthermore, when the four positioning blocks 51 below the printing screen 5 are placed between the center seat 43 and the limiting groove 42, the user controls the movement of the positioning support 44 until the positioning support 44 passes through the positioning groove 52 and is snapped into the limiting groove 42 adjacent to it, and the printing screen 5 can be limitedly installed by plugging the positioning support 44 and the slider 45.

[0041] The distance-adjustable printing screen of the utility model:

[0042] Step 1: In actual use, when the user needs to load and use the printing screen 5, the printing screen 5 is placed on the upper end surfaces of the two sets of second limit assemblies 4; at the same time, the four positioning blocks 51 at the bottom of the printing screen 5 are respectively placed on both sides of the center seat 43 in the two sets of second limit assemblies 4. When the positioning blocks 51 are placed on both sides of the center seat 43 and between the two limit grooves 42, the user can rotate the shaft tube 47. When the shaft tube 47 rotates, the positive and negative threaded rods 49 connected thereto can move synchronously. When the positive and negative threaded screws 49 rotate, they are limited by the threads of the positive and negative threaded screws 49. At this time, the two sliders 45 engaged with the outside of the positive and negative threaded screws 49 will drive the positioning bracket 44 to perform synchronous linear motion. The user controls the positioning bracket 44 to move until it passes through the positioning groove 52 and moves into the limiting groove 42. At this time, the positioning bracket 44 is plugged into the positioning groove 52, and the positioning bracket 44 is plugged into the limiting groove 42 to achieve the quick plug-in installation of the printing screen 5 on the two sets of second limiting components 4.

[0043] Step 2: After the printing stencil 5 is placed on the two sets of second limit assemblies 4 and quickly plugged in via the positioning brackets 44 and the positioning blocks 51, the user can drive the two sets of linear guide rails 2 to control the movement of the mobile platform 31, thereby adjusting the movement of the printing stencil 5 and adjusting the scraping distance of the printing stencil 5;

[0044] Step 3: In actual use, the user can prefabricate and install four positioning blocks 51 on the lower end surface of the printing screen 5 with different screen printing distances, and keep the spacing of the positioning blocks 51 compatible with the plug-in spacing of the second limiting components 4. At this time, even when the size and length of the printing screen 5 change, the user can use the plug-in positioning of the two sets of second limiting components 4 and the positioning blocks 51 to achieve the installation and use of the printing screen 5 with different screen printing distances;

[0045] Step 4: When the size of the printing stencil 5 is too large, the user first uses two sets of second limiting components 4 to perform preliminary positioning on the printing stencil 5, and then places the two ends of the printing stencil 5 on the lower end surfaces of a number of positioning bolts 34. The user can then rotate the positioning bolts 34 until the end of the positioning rubber block 35 is tightly against the top of the printing stencil 5. At this time, the user can use a number of positioning bolts 34 and the positioning rubber block 35 to achieve secondary positioning of the printing stencil 5. By coordinating the positioning of the bottom of the printing stencil 5 with the two sets of second limiting components 4, a stable installation of a large-sized printing stencil 5 can be achieved.

[0046] 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 printing screen with adjustable distance, comprising a screen printer body (1), It is characterized by: The screen printing machine body (1) is provided with two groups of linear slide rails (2), a first limit assembly (3) is slidably provided between the two groups of linear slide rails (2), two groups of second limit assemblies (4) are provided on the first limit assembly (3), and a printing screen (5) is supported on the upper end surfaces of the two groups of second limit assemblies (4); the bottom of the printing screen (5) is provided with four rectangular positioning blocks (51), and each positioning block (51) is provided with a positioning groove (52); The first limiting assembly (3) comprises a moving platform (31) arranged on two sets of linear slide rails (2), support plates (32) are vertically arranged on both sides of the moving platform (31), a mounting plate (33) is installed on the side of the support plate (32), and the mounting plate (33) is arranged in an L-shaped bending and has a plurality of positioning bolts (34) installed along its transverse surface; The two groups of the second limiting components (4) include a positioning seat (41) arranged on the mobile platform (31), the positioning seat (41) is U-shaped as a whole and has limiting grooves (42) respectively arranged on both sides of its upper end surface, and the limiting grooves (42) are connected and opened in an L shape; the upper end surface of the positioning seat (41) is also integrally provided with a center seat (43), and two positioning brackets (44) are slidably arranged in the center seat (43), and the two positioning brackets (44) respectively correspond to one of the limiting grooves (42) and are adapted to be plugged with the limiting grooves (42); The two positioning blocks (51) on the same side are respectively arranged on both sides of the central seat (43), and the positioning bracket (44) and the positioning groove (52) are adapted to be plugged into each other in size.

2. The distance-adjustable printing screen according to claim 1, characterized in that: The bottom of each positioning bolt (34) is connected to a positioning rubber block (35), and the model and thickness of the positioning rubber blocks (35) are set to be consistent.

3. The distance-adjustable printing screen according to claim 1, characterized in that: The second limiting assembly (4) further comprises two grooves formed on the side of the center seat (43), the two grooves being arranged in parallel and each having a slider (45) slidably arranged therein, the two sliders (45) being respectively connected to the side of one of the positioning brackets (44).

4. The distance-adjustable printing screen according to claim 1, characterized in that: A swivel seat (46) is installed on the side of the center seat (43) in the two groups of the second limit assemblies (4), a slot is opened on the swivel seat (46) and a bearing (48) is respectively installed on both sides thereof, and a rotating shaft tube (47) is rotatably arranged between the two bearings (48).

5. The distance-adjustable printing screen according to claim 4, characterized in that: Both ends of the rotating shaft tube (47) in the two groups of the second limiting components (4) pass through an adjacent bearing (48) and are connected to a positive and negative threaded rod (49). The two positive and negative threaded rods (49) in the same group of the second limiting components (4) are arranged in opposite spiral directions, and the two positive and negative threaded rods (49) are respectively engaged with an adjacent slider (45).

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