Auxiliary structure for a printing apparatus

Abstract

This utility model discloses an auxiliary structure for printing equipment, belonging to the field of printing equipment technology. The key technical points include a printing table, with a front support and a rear support respectively provided on the front and rear sides of the top of the printing table. This application sets up a side positioning structure, and the motor drives the bidirectional lead screw to rotate, causing the sliders and clamps on both sides of its surface to slide synchronously inward or outward along the groove. The clamping distance can be adaptively adjusted according to the width of the material. With the help of the inner silicone buffer pad, flexible contact is achieved. At the same time, the auxiliary pressure shafts on the inner side of the front and rear uprights form a stable downward pressure limit on the front and rear of the material during the conveying and winding process. The positioning system is constructed from the side and the top and bottom directions, which effectively solves the problem of lateral displacement caused by vibration and uneven tension during conveying and winding, avoids misalignment of printed patterns, and significantly improves the positioning stability of wide materials.

Description

Technical Field

[0001] This utility model relates to the field of printing equipment technology, and in particular to an auxiliary structure for printing equipment. Background Technology

[0002] A common imprinting technique involves first uniformly coating an imprinting material onto a substrate, then pressing an imprinting mold onto the imprinting material layer on the substrate to transfer the imprinting pattern from the surface of the imprinting mold onto the imprinting material layer. For example, imprinting technology can be used to fabricate optical elements with gratings. It utilizes the imprinting microstructure on the imprinting mold to imprint an optical layer on a light-transmitting substrate, and then cures the imprinted optical layer to form a grating on the light-transmitting substrate.

[0003] The microstructure of the embossing mold will gradually wear out after multiple embossings and needs to be replaced. At this time, the user must remove the original embossing mold from the embossing equipment and install a new embossing mold into the embossing equipment. However, this replacement process is labor-intensive and time-consuming, making the embossing equipment inconvenient to use and with low productivity.

[0004] An existing patent (publication number: CN220995852U) discloses a printing device, which has the feature of reducing the need for printing plate replacement.

[0005] To address the aforementioned issues, existing patents offer solutions, but the printing equipment proposed in these patents still suffers from two major problems: First, the material positioning stability is insufficient. The material ends are fixed only by the grooves of the rollers and the abutment, lacking lateral restraint on the middle of the material. During conveying and winding, the material is prone to lateral displacement due to vibration and uneven tension, leading to misalignment of the printed pattern (such as overlapping text edges and pattern offset). This problem is particularly significant for wide-width materials. Second, the printing pressure adaptability is poor. The printing assembly is directly and rigidly connected to the telescopic cylinder, and the height can only be adjusted by the telescopic cylinder. It cannot adapt the pressure according to the needs of materials of different thicknesses (such as thin paper and thick cardboard). Thin paper is prone to wrinkling due to excessive pressure, while thick cardboard suffers from uneven ink adhesion due to insufficient pressure. Furthermore, the pressure decay cannot be compensated after the printing rollers wear down, further exacerbating the printing quality problems.

[0006] Therefore, an auxiliary structure for printing equipment is proposed. Utility Model Content

[0007] The purpose of this utility model is to provide an auxiliary structure for printing equipment that can solve two major problems still existing in the printing equipment mentioned in the above-mentioned patent: First, the material positioning stability is insufficient. The material end is fixed only by the groove of the material roller and the abutment plate, and there is a lack of lateral restraint on the middle of the material. During the conveying and winding process, the material is prone to lateral displacement due to vibration and uneven tension, which leads to misalignment of the printed pattern (such as overlapping of text edges and pattern displacement). This problem has a particularly significant impact on wide materials. Second, the printing pressure adaptability is poor. The printing component is directly and rigidly connected to the telescopic cylinder. The height can only be adjusted by the telescopic cylinder. It is impossible to adapt the pressure according to the needs of materials of different thicknesses (such as thin paper and thick cardboard). Thin paper is prone to wrinkles due to excessive pressure, while thick cardboard is prone to uneven ink adhesion due to insufficient pressure. Moreover, the pressure decay cannot be compensated after the printing roller wears down, which further aggravates the printing quality problem.

[0008] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary structure for printing equipment, including a printing table, a front support and a rear support respectively provided on the front and rear sides of the top of the printing table, a feeding roller and a receiving roller respectively rotatably connected to the inner sides of the front support and the rear support, a controller provided on the right side of the printing table, a side positioning structure provided on the top of the printing table, and a pressure regulating printing component provided on the top of the printing table;

[0009] The side positioning structure includes a groove formed on the top of the printing table. A motor is bolted to the right side of the printing table. A bidirectional lead screw is fixedly connected to the output end of the motor. Slider blocks are threaded to both sides of the surface of the bidirectional lead screw. The sliders are slidably connected inside the groove. A clamping plate is welded to the top of the slider. A silicone buffer pad is adhered to the inner side of the clamping plate. Uprights are welded to the front and rear sides of both sides of the top of the printing table. An auxiliary pressure shaft is rotatably connected to the inner side of the uprights.

[0010] Preferably, the pressure-regulating printing assembly includes an electric push rod bolted to the front and rear sides of the bottom of the printing table. The electric push rod is electrically connected to the controller, and the telescopic end of the electric push rod passes through the bottom of the printing table.

[0011] Preferably, the telescopic end of the electric push rod is fixedly connected to a support, and a pressure sensor is provided on the top of the support. The pressure sensor is electrically connected to the controller.

[0012] Preferably, a touch plate is provided on the top of the support, the touch plate is located on top of the pressure sensor, a frame is bolted to the top of the printing table, a telescopic cylinder is provided on the top side inside the frame, the telescopic cylinder is electrically connected to the controller, and an impression structure is fixedly connected to the telescopic end of the telescopic cylinder.

[0013] Preferably, the imprinting structure includes an imprint box fixedly connected to the telescopic end of the telescopic cylinder, and an oil box is provided on the top side inside the imprint box.

[0014] Preferably, a brush is inserted into the bottom of the oil box, and an impression roller is rotatably connected inside the oil box, with the top of the impression roller contacting the bottom of the brush.

[0015] Preferably, the top of the take-up roller is provided with a material end pressing structure, the material end pressing structure includes a positioning groove opened on the top of the take-up roller, and a pressing plate is provided inside the positioning groove.

[0016] Preferably, a threaded rod is threadedly connected to the left side of the rear side of the take-up roller, and the front side of the threaded rod is rotatably connected to the rear side of the pressure plate. An auxiliary rod is provided on the right side of the rear side of the take-up roller, and the front side of the auxiliary rod passes through the right side of the rear side of the take-up roller and is fixedly connected to the pressure plate.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This application sets up a side positioning structure, and the motor drives the bidirectional lead screw to rotate, which drives the sliders and clamps on both sides of its surface to slide synchronously inward or outward along the groove. The clamping distance can be adaptively adjusted according to the width of the material. With the help of the inner silicone buffer pad, flexible contact is achieved. At the same time, the auxiliary pressure shafts on the inner side of the front and rear uprights form a stable downward pressure limit on the front and rear of the material during the conveying and winding process. The positioning system is constructed from the side and the top and bottom directions, which effectively solves the problem of lateral displacement caused by vibration and uneven tension during conveying and winding, avoids misalignment of printed patterns, and significantly improves the positioning stability of wide materials.

[0019] 2. By setting up a pressure-adjusting printing component, this application can specifically adapt to the pressure requirements of materials of different thicknesses. This avoids wrinkles on thin paper due to excessive pressure and solves the problem of uneven ink adhesion on thick cardboard due to insufficient pressure. At the same time, it can compensate for pressure attenuation caused by wear of the printing roller, ensuring that the printing quality remains stable. Attached Figure Description

[0020] Figure 1 This is an overall structural diagram of the auxiliary structure for the printing equipment of this utility model;

[0021] Figure 2 This is a structural diagram of the printing table of this utility model;

[0022] Figure 3 This is a structural diagram of the side positioning structure of this utility model;

[0023] Figure 4 This is a structural diagram of the voltage regulating printing assembly of this utility model;

[0024] Figure 5This is a structural diagram of the material end pressing structure of this utility model;

[0025] Figure 6 This is a structural diagram of the embossing structure of this utility model.

[0026] In the diagram, 1. Printing table; 2. Front support; 3. Rear support; 4. Feeding roller; 5. Receiving roller; 6. Controller; 7. Side positioning structure; 71. Groove; 72. Motor; 73. Bidirectional lead screw; 74. Slider; 75. Clamping plate; 76. Silicone buffer pad; 77. Upright pole; 78. Auxiliary pressure shaft; 8. Pressure regulating printing assembly; 81. Electric push rod; 82. Support; 83. Pressure sensor; 84. Contact plate; 85. Frame; 86. Telescopic cylinder; 87. Imprinting structure; 871. Printing box; 872. Ink box; 873. Wool brush; 874. Imprinting roller; 9. Material end pressing structure; 91. Positioning groove; 92. Pressing plate; 93. Threaded rod; 94. Auxiliary rod. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] Please see Figure 1-5 The present invention provides the following technical solution:

[0029] An auxiliary structure for printing equipment includes a printing table 1. A front support 2 and a rear support 3 are respectively provided on the front and rear sides of the top of the printing table 1. A feeding roller 4 and a receiving roller 5 are respectively rotatably connected to the inner sides of the front support 2 and the rear support 3. A controller 6 is provided on the right side of the printing table 1. A side positioning structure 7 is provided on the top of the printing table 1. A pressure regulating printing assembly 8 is provided on the top of the printing table 1.

[0030] The side positioning structure 7 includes a groove 71 formed on the top of the printing table 1. A motor 72 is bolted to the right side of the printing table 1. A bidirectional lead screw 73 is fixedly connected to the output end of the motor 72. Slider 74 is threaded to both sides of the surface of the bidirectional lead screw 73. The slider 74 is slidably connected inside the groove 71. A clamping plate 75 is welded to the top of the slider 74. A silicone buffer pad 76 is adhered to the inner side of the clamping plate 75. Uprights 77 are welded to the front and rear sides of both sides of the top of the printing table 1. An auxiliary pressure shaft 78 is rotatably connected to the inner side of the uprights 77.

[0031] In this embodiment: by setting up a printing table 1, a front support 2, a rear support 3, a feeding roller 4, a take-up roller 5, a controller 6, a side positioning structure 7, and a pressure regulating printing assembly 8, stable conveying and precise printing of the printing material are achieved. During operation, the material released by the feeding roller 4 is conveyed to the take-up roller 5 via the printing table 1 to complete the winding. During this process, the controller 6 can preset the material width parameters and drive the side positioning structure 7 to work: the motor 72 drives the bidirectional lead screw 73 to rotate, causing the sliders 74 on both sides of its surface to slide synchronously along the groove 71 (a cleaning sleeve can be added as needed to clean the surface of the bidirectional lead screw 73 as the sliders 74 move). The spacing of the clamping plates 75 is adjusted to match the width of the material. The inner silicone buffer pads 76 prevent damage to the material edges through flexible contact. At the same time, the auxiliary pressure shafts 78 on the inner sides of the front and rear uprights 77 on both sides of the printing table 1 contact the material surface, forming a stable vertical limit during conveying and winding. Together with the lateral clamping of the clamping plates 75, they jointly limit the material's displacement caused by vibration or tension changes. The pressure regulating printing assembly 8 automatically adjusts the printing pressure according to the material thickness to ensure that different materials (such as thin paper and thick cardboard) are subjected to uniform force during the printing process. Finally, through the coordinated cooperation of various structures, the accuracy and quality stability of the printed pattern are guaranteed.

[0032] Specifically, such as Figure 4 As shown, the pressure regulating printing assembly 8 includes an electric push rod 81 bolted to the front and rear sides of the bottom of the printing table 1. The electric push rod 81 is electrically connected to the controller 6, and the telescopic end of the electric push rod 81 passes through the bottom of the printing table 1.

[0033] Specifically, such as Figure 4 As shown, the telescopic end of the electric push rod 81 is fixedly connected to a support 82, and a pressure sensor 83 is installed on the top of the support 82. The pressure sensor 83 is electrically connected to the controller 6.

[0034] Specifically, such as Figure 4 As shown, a touch plate 84 is provided on the top of the support 82. The touch plate 84 is located on the top of the pressure sensor 83. A frame 85 is bolted to the top of the printing table 1. A telescopic cylinder 86 is provided on the top side inside the frame 85. The telescopic cylinder 86 is electrically connected to the controller 6. An imprinting structure 87 is fixedly connected to the telescopic end of the telescopic cylinder 86.

[0035] In this embodiment: By setting up the pressure regulating printing component 8, precise pressure adaptation for materials of different thicknesses is achieved. During operation, the controller 6 adjusts the linkage control of the electric push rod 81 and the telescopic cylinder 86 according to the preset material thickness parameters: the telescopic end of the electric push rod 81 drives the support 82 to rise and fall, adjusting the initial distance between the contact plate 84 and the imprinting structure 87. When the imprinting structure 87 contacts the material, the contact plate 84 is pressed and transmits the force to the pressure sensor 83. The sensor feeds back the pressure data to the controller 6 in real time. If the pressure value deviates from the preset range (e.g., 5-8N for thin paper, 10-15N for thick cardboard), the controller 6 immediately adjusts the stroke of the telescopic cylinder 86. By increasing or decreasing the pressure of the imprinting structure 87 on the material, it ensures that different materials are subjected to uniform force during printing, while compensating for the wear of the imprinting structure 87 after long-term use, and avoiding fluctuations in printing quality due to pressure decay.

[0036] Specifically, such as Figure 6 As shown, the printing structure 87 includes an ink box 871 fixedly connected to the telescopic end of the telescopic cylinder 86, and an ink box 872 is provided on the top side inside the ink box 871.

[0037] Specifically, such as Figure 6 As shown, a brush 873 is inserted into the bottom of the ink box 872, and an impression roller 874 is rotatably connected inside the ink box 872. The top of the impression roller 874 contacts the bottom of the brush 873.

[0038] In this embodiment: by setting the impression structure 87, uniform ink transfer and pattern printing are achieved. The ink stored in the ink box 872 is continuously transferred to the surface of the impression roller 874 through the bottom brush 873, ensuring that the ink layer on the roller surface is uniform. When the impression roller 874 contacts the material surface, under the pressure of the telescopic cylinder 86, the roller surface pattern is accurately transferred to the material surface. The rolling contact design between the brush 873 and the impression roller 874 not only ensures the continuity of ink supply, but also avoids the blurring of the pattern caused by excessive ink accumulation, thus improving the printing clarity.

[0039] Specifically, such as Figure 5 As shown, the top of the take-up roller 5 is provided with a material end pressing structure 9. The material end pressing structure 9 includes a positioning groove 91 opened on the top of the take-up roller 5, and a pressing plate 92 is provided inside the positioning groove 91.

[0040] Specifically, such as Figure 5 As shown, a threaded rod 93 is threadedly connected to the left side of the rear side of the take-up roller 5. The front side of the threaded rod 93 is rotatably connected to the rear side of the pressure plate 92. An auxiliary rod 94 is provided on the right side of the rear side of the take-up roller 5. The front side of the auxiliary rod 94 passes through the right side of the rear side of the take-up roller 5 and is fixedly connected to the pressure plate 92.

[0041] In this embodiment: by setting the material end pressing structure 9, when the material is conveyed to the take-up roller 5 and needs to be fixed and wound, the material end is placed inside the positioning groove 91, the threaded rod 93 is rotated to push the pressing plate 92 to move forward along the positioning groove 91, and the auxiliary rod 94 slides synchronously with the pressing plate 92 to ensure its smooth movement until the pressing plate 92 is tightly attached to the material end, effectively preventing the deviation caused by the loosening of the material end in the early stage of winding. With the side positioning structure 7, full-section positioning is formed from the beginning to the middle of the material, further improving the stability of the winding process.

[0042] Working principle: During the use of the auxiliary structure in the printing equipment, the unloading roller 4, which winds the printing material, is first installed on the front support 2. The end of the material is pulled into the positioning groove 91 of the take-up roller 5. The threaded rod 93 on the rear side of the take-up roller 5 is rotated, pushing the pressure plate 92 forward along the positioning groove 91. The auxiliary rod 94 slides synchronously to ensure stability, so that the pressure plate 92 is tightly attached to the end of the material, completing the fixing of the beginning of the material. After the equipment is started, the controller 6 starts the side positioning structure 7 according to the preset parameters of the material width: the motor 72 drives the bidirectional lead screw 73 to rotate. The movement causes the sliders 74 on both sides to slide synchronously along the grooves 71 on the top of the printing table 1, adjusting the spacing of the clamping plates 75 to match the material width. The silicone buffer pads 76 on the inner side of the clamping plates 75 flexibly clamp the two sides of the material. At the same time, the auxiliary pressure shafts 78 on the inner side of the front and rear uprights 77 on both sides of the printing table 1 contact the material surface, forming a stable limit in the vertical direction. Together with the lateral clamping of the clamping plates 75, they limit the deviation caused by vibration or tension changes during material conveying and winding. Simultaneously, the controller 6 presets the pressure according to the material thickness (such as thin paper, thick cardboard). Force parameters regulate the operation of the pressure-adjusting printing assembly 8: The telescopic end of the electric push rod 81 drives the support 82 to rise and fall, adjusting the initial distance between the contact plate 84 and the printing structure 87. The telescopic cylinder 86 inside the frame 85 drives the printing structure 87 to descend. When the printing roller 874 contacts the material, the material is pressured and transmitted to the contact plate 84. The pressure sensor 83 feeds back the data to the controller 6 in real time. If the pressure deviates from the preset range (5-8N for thin paper, 10-15N for thick cardboard), the controller 6 immediately adjusts the stroke of the telescopic cylinder 86 to ensure that the printing pressure is appropriate during the printing process. Ink from ink cartridge 872 inside ink box 871 is continuously transferred to the surface of impression roller 874 via bottom brush 873, ensuring uniform ink on the roller surface. Impression roller 874 rolls and contacts the material under pressure, accurately transferring the pattern to the material surface. The rolling contact design of brush 873 avoids ink accumulation that could cause the pattern to become blurred. Finally, the printed material is wound up by take-up roller 5. Through the coordinated operation of side positioning, pressure adjustment printing, and material end fixing structures, stable material conveying and accurate printing are achieved, ensuring the consistency and stability of printing quality.

[0043] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An auxiliary structure for a printing apparatus, comprising a printing table (1), characterized in that: The printing table (1) is provided with a front support (2) and a rear support (3) on the front and rear sides of the top, respectively. The inner sides of the front support (2) and the rear support (3) are rotatably connected with a feeding roller (4) and a receiving roller (5), respectively. The right side of the printing table (1) is provided with a controller (6), the top of the printing table (1) is provided with a side positioning structure (7), and the top of the printing table (1) is provided with a pressure regulating printing assembly (8). The side positioning structure (7) includes a groove (71) on the top of the printing table (1). A motor (72) is bolted to the right side of the printing table (1). A two-way lead screw (73) is fixedly connected to the output end of the motor (72). A slider (74) is threaded to both sides of the surface of the two-way lead screw (73). The slider (74) is slidably connected inside the groove (71). A clamping plate (75) is welded to the top of the slider (74). A silicone buffer pad (76) is glued to the inner side of the clamping plate (75). A vertical rod (77) is welded to the front and rear sides of both sides of the top of the printing table (1). An auxiliary pressure shaft (78) is rotatably connected to the inner side of the vertical rod (77).

2. The auxiliary structure for a printing apparatus according to claim 1, characterized by: The pressure-regulating printing assembly (8) includes an electric push rod (81) bolted to the front and rear sides of the bottom of the printing table (1). The electric push rod (81) is electrically connected to the controller (6), and the telescopic end of the electric push rod (81) passes through the bottom of the printing table (1).

3. An auxiliary structure for a printing apparatus according to claim 2, characterized in that: The telescopic end of the electric push rod (81) is fixedly connected to a support (82), and a pressure sensor (83) is provided on the top of the support (82). The pressure sensor (83) is electrically connected to the controller (6).

4. The auxiliary structure for a printing apparatus according to claim 3, wherein: The top of the support (82) is provided with a touch plate (84), which is located on top of the pressure sensor (83). The top of the printing table (1) is bolted with a frame (85), and a telescopic cylinder (86) is provided on the top side inside the frame (85). The telescopic cylinder (86) is electrically connected to the controller (6), and the telescopic end of the telescopic cylinder (86) is fixedly connected with an imprinting structure (87).

5. An auxiliary structure for a printing apparatus according to claim 4, characterized in that: The printing structure (87) includes an ink box (871) fixedly connected to the telescopic end of the telescopic cylinder (86), and an oil box (872) is provided on the top side inside the ink box (871).

6. An auxiliary structure for a printing apparatus according to claim 5, characterized in that: A brush (873) is inserted into the bottom of the oil box (872), and an impression roller (874) is rotatably connected inside the oil box (872). The top of the impression roller (874) contacts the bottom of the brush (873).

7. The auxiliary structure for a printing apparatus according to claim 1, wherein: The top of the receiving roller (5) is provided with a material end pressing structure (9), which includes a positioning groove (91) opened on the top of the receiving roller (5), and a pressing plate (92) is provided inside the positioning groove (91).

8. An auxiliary structure for a printing apparatus according to claim 7, characterized in that: A threaded rod (93) is threadedly connected to the left side of the rear side of the receiving roller (5). The front side of the threaded rod (93) is rotatably connected to the rear side of the pressing plate (92). An auxiliary rod (94) is provided on the right side of the rear side of the receiving roller (5). The front side of the auxiliary rod (94) passes through the right side of the rear side of the receiving roller (5) and is fixedly connected to the pressing plate (92).

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