Printing net rack of printing machine

Abstract

The invention relates to the technical field of printing, and discloses a printing net rack of a printing machine, which comprises a supporting assembly, the supporting assembly comprises a connecting buckle I, the bottom of the connecting buckle I is fixedly connected with a sliding seat, and the outer wall of the connecting buckle I is rotatably connected with an elastic arc-shaped rod I through a bearing; the end, away from the first connecting buckle, of the first elastic arc-shaped rod is fixedly connected with a sliding buckle, the inner wall of the sliding buckle is slidably connected with a fourth sliding rod, the two ends of the fourth sliding rod are both fixedly connected with second connecting buckles, the outer wall of the fourth sliding rod is sleeved with a second spring, and one end of the second spring is fixedly connected with the sliding buckle. The end, away from the sliding buckle, of the second spring is fixedly connected with the second connecting buckle, so that the position of the containing plate is lowered when the first elastic arc-shaped plate deforms, the phenomenon that the screen plate is damaged due to the fact that the motor is closed and prolonged is avoided, the pressure of the screen plate on a printed object is larger than that when the screen plate is flatly laid on the printed object, and the printing quality is improved. And the printing effect is improved.

Description

Technical Field

[0001] This invention relates to the field of printing technology, specifically to a printing screen for a printing press. Background Technology

[0002] A printing press is a machine that prints text and images. Modern printing presses generally consist of mechanisms for mounting the printing plate, inking, pressing, and feeding paper (including folding). Its working principle is as follows: First, the text and images to be printed are made into a printing plate, which is then mounted on the printing press. Then, ink is applied to the areas of the printing plate containing the text and images by hand or by the printing press. The ink is then transferred directly or indirectly to paper or other printing substrates (such as textiles, metal plates, plastics, leather, wood, glass, and ceramics), thereby reproducing printed materials identical to the printing plate. The invention and development of the printing press has played an important role in the dissemination of human civilization and culture.

[0003] Patent application CN202222337072.8 discloses a printing screen frame for a printing machine. Two sets of openings are internally threaded to an adjustment device. The adjustment device is provided in two sets and is centrally symmetrically arranged in the opening at the top of the screen frame body. In use, the adjustment device raises and lowers the screen frame body. When the two sets of centrally symmetrical adjustment devices raise and lower the screen frame body, the center of gravity is located at the center of the screen frame body. Moreover, the two-set design is more energy-efficient than the traditional four-set motor drive.

[0004] When the above-mentioned equipment is in use, it is used to fix a single size screen printing mesh, and it is not possible to install screen printing meshes of different sizes. Furthermore, when the screen printing mesh is rising and comes into contact with the object, the mesh may be damaged due to the motor not shutting off in time. Summary of the Invention

[0005] The purpose of this invention is to provide a printing screen for a printing press to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a printing screen frame for a printing machine, comprising a base, wherein cylinders are fixedly connected to the top three corners of the base, and sliding rods are fixedly connected to the ends of two opposite cylinders away from the base, and limiting pieces are fixedly connected to the ends of the two sliding rods away from the cylinders, and further comprising: The adjustment mechanism includes a mesh frame slidably connected to the outer wall of a slide rod 1. The inner wall of the mesh frame is fixedly connected to a slide rod 2, and there are two slide rods 2. The outer wall of each slide rod 2 is provided with two sliders 1. The outer wall of the slide rod 2 is slidably connected to the sliders 1. The outer wall of the sliders 1 is fixedly connected to a slide rod 3. Two slide rods 3 are connected between every two sliders 1. The outer wall of every two slide rods 3 is slidably connected to two placement mechanisms. The purpose of this arrangement is to allow the component to clamp and fix mesh panels of different sizes by moving the sliders 1 and the placement components. The placement mechanism includes a sliding seat slidably connected to the outer wall of a sliding rod. A guide rail is fixedly connected to the outer wall of the sliding seat. A placement plate is slidably connected to the outer wall of the guide rail. A spring is fixedly connected to the bottom of the placement plate. The end of the spring away from the placement plate is fixedly connected to the sliding seat. A cavity is formed on one side of the sliding seat. An elastic component is fixedly connected to the inner wall of the sliding seat. A support component is fixedly connected to the bottom of the placement plate. The number of support components is three. A fixing component is rotatably connected to one side of the sliding seat.

[0007] According to the above technical solution, a motor is fixedly connected to the other corner of the top of the base, a drive threaded column is fixedly connected to the output end of the motor, a limit piece two is fixedly connected to the end of the drive threaded column away from the motor, and a sleeve one is fixedly connected to the outer wall of the drive threaded column.

[0008] According to the above technical solution, another cylinder away from the base is rotatably connected to a driven threaded column via a bearing. The end of the driven threaded column away from the cylinder is fixedly connected to a limit plate three. A sleeve two is fixedly connected to the outer wall of the driven threaded column. A belt is fitted on the outer wall of the sleeve two. The sleeve one and the sleeve two are rotatably connected via the belt. The purpose of this arrangement is to drive the grid frame to move up and down by the forward and reverse rotation of the motor, thereby adjusting its vertical position.

[0009] According to the above technical solution, the support component includes a connecting buckle 1, the bottom of which is fixedly connected to a sliding seat. An elastic arc-shaped rod 1 is rotatably connected to the outer wall of the connecting buckle 1 via a bearing. A sliding buckle is fixedly connected to the end of the elastic arc-shaped rod 1 away from the connecting buckle 1. A sliding rod 4 is slidably connected to the inner wall of the sliding buckle. Connecting buckles 2 are fixedly connected to both ends of the sliding rod 4. A spring 2 is sleeved on the outer wall of the sliding rod 4. One end of the spring 2 is fixedly connected to the sliding buckle, and the end of the spring 2 away from the sliding buckle is fixedly connected to the connecting buckle 2. This arrangement aims to lower the position of the placement plate when the elastic arc-shaped plate 1 deforms, preventing damage to the screen plate due to the extended motor shutdown period. It also increases the pressure of the screen plate on the printed object compared to when it is laid flat on the printed object, thus improving the printing effect.

[0010] According to the above technical solution, the fixing component includes a gear, one side of which is rotatably connected to the sliding seat via a bearing. The gear teeth are unidirectional, which is intended to allow rotation in only one direction via the knob, and the gear cannot rotate in the opposite direction without being released from its fixed position. A central shaft is fixedly connected to the side of the gear away from the sliding seat. A connecting plate is fixedly connected to the outer wall of the central shaft, and a connecting column is fixedly connected to the inner side of the connecting plate. A knob is fixedly connected to the outer wall of the end of the central shaft away from the gear. A pressure column is slidably connected to the inner wall of the central shaft, sliding through the gear and extending into the cavity. A base plate is fixedly connected to the end of the pressure column away from the knob. The side of the base plate away from the pressure column is fixedly connected to an elastic component. A limit head is fixedly connected to the side of the base plate away from the elastic component, and the limit head slides through the outer wall of the sliding seat.

[0011] According to the above technical solution, an annular plate is slidably connected to the outer wall of the central shaft. Connecting blocks are fixedly connected to both the upper and lower ends of the annular plate. The end of the connecting block away from the annular plate is fixedly connected to the sliding seat. Slide rods are fixedly connected to both the left and right sides of the annular plate. A fixing plate is fixedly connected to the end of the slide rod away from the annular plate. The end of the fixing plate away from the slide rod is fixedly connected to the sliding seat. A locking component is slidably connected to the outer wall of the slide rod. The purpose of this arrangement is to make the fixing of the component possible by rotating the knob and by pressing the pressure column, thus simplifying the operation.

[0012] According to the above technical solution, the locking assembly includes a slider two, the outer wall of the slider five is slidably connected to the slider two, the outer wall of the slider two is rotatably connected to an elastic arc-shaped rod two via a bearing, the end of the elastic arc-shaped rod two away from the slider two is rotatably connected to a locking cover via a bearing, the outer wall of the slider two is rotatably connected to an arc-shaped rod via a bearing, and the end of the arc-shaped rod away from the slider two is rotatably connected to a connecting column. The purpose of this arrangement is to lock the slider three with the locking cover by rotating the knob, fixing the placement mechanism on the slider three. Without releasing the fixation, the placement mechanism cannot move, preventing the mesh plate from falling off due to the loosening of the placement assembly caused by the up-and-down movement of the equipment.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. By setting an adjustment component, the present invention enables the device to fix screens of different sizes and to move the screens horizontally to the corresponding positions.

[0014] 2. By setting a fixing component, the present invention can fix the placement mechanism on the slide bar. Without releasing the fixing, the placement mechanism cannot move, thus preventing the mesh plate from falling off due to the loosening of the placement component caused by the up and down movement of the device.

[0015] 3. By setting up a support component, the present invention enables the device to deform when the stencil comes into contact with the printed object, thus preventing damage to the stencil due to prolonged motor shutdown.

[0016] 4. By setting up a support component, the present invention causes the device to deform when the stencil comes into contact with the printed object, and at the same time makes the pressure of the stencil on the printed object greater than when it is laid flat on the printed object, thereby improving the printing effect. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the adjustment mechanism of the present invention; Figure 3 This is a schematic diagram of the placement mechanism of the present invention; Figure 4 This is a cross-sectional view of the placement mechanism of the present invention; Figure 5 This is a schematic diagram of the support components of the present invention; Figure 6 This is a schematic diagram of the fixing component of the present invention; Figure 7 This is a schematic diagram of the internal structure of the fixing component of the present invention; Figure 8 This is a schematic diagram of the locking component of the present invention; In the diagram: 1. Base; 101. Cylinder; 102. Slide rod one; 103. Limiting plate one; 104. Motor; 105. Drive threaded column; 106. Limiting plate two; 107. Sleeve one; 108. Driven threaded column; 109. Limiting plate three; 110. Sleeve two; 111. Belt; 2. Adjustment mechanism; 201. Space frame; 202. Slide rod two; 203. Slider one; 204. Slide rod three; 3. Placement mechanism; 301. Sliding seat; 302. Guide rail; 303. Placement plate; 304. Spring one; 305. Cavity; 306. Elastic component; 31. Support component; 311. Connecting buckle one; 312. Elastic arc rod one; 313. Sliding buckle; 314. Slide rod four; 315. Connecting buckle two; 316. Spring two; 32. Fixing component; 321. Gear; 322. Central shaft; 323. Connecting plate; 324. Connecting column; 325. Knob; 326. Pressure column; 327. Base plate; 328. Limiting head; 329. Ring plate; 3210. Connecting block; 3211. Slide rod five; 3212. Fixing plate; 33. Locking component; 331. Slider two; 332. Elastic arc rod two; 333. Locking cover; 334. Arc rod. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example 1, please refer to Figure 1-2 The present invention provides a technical solution: a printing screen frame for a printing machine, comprising a base 1, with cylinders 101 fixedly connected to three corners of the top of the base 1; slide rods 102 fixedly connected to the ends of two diagonally opposite cylinders 101 away from the base 1; limiting plates 103 fixedly connected to the ends of the two slide rods 102 away from the cylinders 101; a motor 104 fixedly connected to the other corner of the top of the base 1; a drive threaded column 105 fixedly connected to the output end of the motor 104; a limiting plate 106 fixedly connected to the end of the drive threaded column 105 away from the motor 104; and a sleeve 107 fixedly connected to the outer wall of the drive threaded column 105. A driven threaded column 108 is rotatably connected to the cylinder 101 away from the base 1 via a bearing. A limit plate 109 is fixedly connected to one end of the driven threaded column 108 away from the cylinder 101. A sleeve 110 is fixedly connected to the outer wall of the driven threaded column 108. A belt 111 is fitted onto the outer wall of the sleeve 110. A sleeve 107 and a sleeve 110 are rotatably connected via the belt 111. This arrangement is designed so that the starting motor 104 drives the driven threaded column 105 to rotate, and then the sleeve 107, sleeve 110, and belt 111 drive the driven threaded column 108 to rotate, thereby causing the space frame 201 to move up and down. The system also includes: The adjusting mechanism 2 includes a mesh frame 201 slidably connected to the outer wall of the slide rod 102. The inner wall of the mesh frame 201 is fixedly connected to the slide rod 202. The outer wall of the slide rod 202 is slidably connected to the slider 1 203. The outer wall of the slider 1 203 is fixedly connected to the slide rod 3 204. The purpose of this arrangement is to allow the mechanism to fix mesh plates of different sizes by moving the slider 1 203 and the placement mechanism 3 along the slide rod 2 202 and the slide rod 3 204.

[0020] Example 2 differs from Example 1 in that: Please refer to... Figures 3-8As shown, the placement mechanism 3 includes a sliding seat 301 slidably connected to the outer wall of the slide rod 204. A guide rail 302 is fixedly connected to the outer wall of the sliding seat 301. A placement plate 303 is slidably connected to the outer wall of the guide rail 302. A spring 304 is fixedly connected to the bottom of the placement plate 303. The end of the spring 304 away from the placement plate 303 is fixedly connected to the sliding seat 301. A cavity 305 is opened on one side of the sliding seat 301. An elastic component 306 is fixedly connected to the inner wall of the sliding seat 301. A support component 31 is fixedly connected to the bottom of the placement plate 303. A fixing component 32 is rotatably connected to one side of the sliding seat 301. The purpose of this arrangement is to allow the spring 304 to contract when the placement plate 303 moves downward, converting the pressure into elastic force, thereby reducing the damage to the stencil caused by excessive pressure on the printing surface.

[0021] The support assembly 31 includes a connecting buckle 311, the bottom of which is fixedly connected to the sliding seat 301. An elastic arc-shaped rod 312 is rotatably connected to the outer wall of the connecting buckle 311 via a bearing. A sliding buckle 313 is fixedly connected to the end of the elastic arc-shaped rod 312 away from the connecting buckle 311. A sliding rod 314 is slidably connected to the inner wall of the sliding buckle 313. Connecting buckles 315 are fixedly connected to both ends of the sliding rod 314. A spring 316 is sleeved on the outer wall of the sliding rod 314. One end of the spring 316 is fixedly connected to the sliding buckle 313, and the end of the spring 316 away from the sliding buckle 313 is fixedly connected to the connecting buckle 301. The second fastener 315 is fixedly connected. The purpose of this setting is to allow the placement plate 303 to move downwards due to the pressure driven by the screen plate. As the placement plate 303 moves, the sliding buckle 313 moves forward, the second spring 316 contracts, and the elastic arc rod 312 deforms, converting the pressure into elastic force. This reduces the screen plate damage caused by excessive pressure on the printed surface. At the same time, it makes the pressure of the screen plate on the printed object greater than when it is laid flat on the printed object, improving the printing effect. It also provides support force to the end of the placement plate 303 away from the guide rail 302, preventing the placement plate 303 from falling off the guide rail 302.

[0022] The fixing component 32 includes a gear 321. One side of the gear 321 is rotatably connected to the sliding seat 301 via a bearing. A central shaft 322 is fixedly connected to the side of the gear 321 away from the sliding seat 301. A connecting plate 323 is fixedly connected to the outer wall of the central shaft 322. A connecting column 324 is fixedly connected to the inner side of the connecting plate 323. A knob 325 is fixedly connected to the outer wall of the end of the central shaft 322 away from the gear 321. A pressure column 326 is slidably connected to the inner wall of the central shaft 322. The pressure column 326 slides through the gear 321 and extends into the cavity 305. A base plate 327 is fixedly connected to the end of the pressure column 326 away from the knob 325. The side of the base plate 327 away from the pressure column 326 is fixedly connected to the elastic component 306. A fixed connection is established. A limiting head 328 is fixedly connected to the side of the base plate 327 away from the elastic component 306. The limiting head 328 slides through the outer wall of the sliding seat 301. An annular plate 329 is slidably connected to the outer wall of the central shaft 322. Connecting blocks 3210 are fixedly connected to both the upper and lower ends of the annular plate 329. The end of the connecting block 3210 away from the annular plate 329 is fixedly connected to the sliding seat 301. Slide rods 3211 are fixedly connected to both the left and right sides of the annular plate 329. A fixing plate 3212 is fixedly connected to the end of the slide rod 3211 away from the annular plate 329. The end of the fixing plate 3212 away from the slide rod 3211 is fixedly connected to the sliding seat 301. A locking component 33 is slidably connected to the outer wall of the slide rod 3211.

[0023] The locking assembly 33 includes a second slider 331, and a fifth slider 3211 whose outer wall is slidably connected to the second slider 331. An elastic arc-shaped rod 332 is rotatably connected to the outer wall of the second slider 331 via a bearing. A locking cover 333 is rotatably connected to the end of the elastic arc-shaped rod 332 away from the second slider 331 via a bearing. An arc-shaped rod 334 is rotatably connected to the outer wall of the second slider 331 via a bearing. The end of the arc-shaped rod 334 away from the second slider 331 is rotatably connected to a connecting post 324. This arrangement is designed so that by rotating the knob 325, the locking mechanism can be activated via the central shaft 322, connecting plate 323, connecting post 324, and arc-shaped rod 334. The rod 334 drives the slider 331 to move inward along the trajectory of the slide bar 3211, causing the elastic arc rod 332 to deform. This increases the pressure of the locking cover 333 on the slide bar 3, thus achieving a fixing effect. At the same time, the rotation of the knob 325 drives the gear 321 to rotate, and through the limit head 328, it loses the ability to rotate in the opposite direction. When it is necessary to release the fixation, pressing the pressure column 326 drives the limit head 328 to move backward through the base plate 327, causing it to lose its restriction on the gear 321. Under the action of the elastic arc rod 332, it achieves reset, thereby achieving the purpose of releasing the fixation.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A printing screen frame for a printing press, comprising a base (1), wherein cylinders (101) are fixedly connected to the top three corners of the base (1), and sliding rods (102) are fixedly connected to the ends of two opposite cylinders (101) away from the base (1), and limiting pieces (103) are fixedly connected to the ends of the two sliding rods (102) away from the cylinders (101), characterized in that, further include: The adjustment mechanism (2) includes a grid frame (201) that is slidably connected to the outer wall of the slide rod (102). The inner wall of the grid frame (201) is fixedly connected to the slide rod (202). The outer wall of the slide rod (202) is slidably connected to the slider (203). The outer wall of the slider (203) is fixedly connected to the slide rod (204). The placement mechanism (3) includes a sliding seat (301) slidably connected to the outer wall of the sliding rod (204). A guide rail (302) is fixedly connected to the outer wall of the sliding seat (301). A placement plate (303) is slidably connected to the outer wall of the guide rail (302). A spring (304) is fixedly connected to the bottom of the placement plate (303). One end of the spring (304) away from the placement plate (303) is fixedly connected to the sliding seat (301). A cavity (305) is opened on one side of the sliding seat (301). An elastic component (306) is fixedly connected to the inner wall of the sliding seat (301). A support component (31) is fixedly connected to the bottom of the placement plate (303). A fixing component (32) is rotatably connected to one side of the sliding seat (301).

2. The printing screen frame of a printing machine according to claim 1, characterized in that: A motor (104) is fixedly connected to the other corner of the top of the base (1). A drive threaded column (105) is fixedly connected to the output end of the motor (104). A limit plate (106) is fixedly connected to the end of the drive threaded column (105) away from the motor (104). A sleeve (107) is fixedly connected to the outer wall of the drive threaded column (105).

3. The printing screen frame of a printing machine according to claim 2, characterized in that: Another cylinder (101) is rotatably connected to a driven threaded column (108) via a bearing away from the base (1). One end of the driven threaded column (108) away from the cylinder (101) is fixedly connected to a limiting piece three (109). A sleeve two (110) is fixedly connected to the outer wall of the driven threaded column (108). A belt (111) is fitted on the outer wall of the sleeve two (110). The sleeve one (107) and the sleeve two (110) are rotatably connected via the belt (111).

4. The printing screen frame of a printing machine according to claim 1, characterized in that: The support assembly (31) includes a connecting buckle one (311), the bottom of which is fixedly connected to a sliding seat (301). The outer wall of the connecting buckle one (311) is rotatably connected to an elastic arc rod one (312) via a bearing. The end of the elastic arc rod one (312) away from the connecting buckle one (311) is fixedly connected to a sliding buckle (313). The inner wall of the sliding buckle (313) is slidably connected to a sliding rod four (314). Both ends of the sliding rod four (314) are fixedly connected to connecting buckles two (315). The outer wall of the sliding rod four (314) is fitted with a spring two (316). One end of the spring two (316) is fixedly connected to the sliding buckle (313), and the end of the spring two (316) away from the sliding buckle (313) is fixedly connected to connecting buckles two (315).

5. The printing screen frame of a printing machine according to claim 1, characterized in that: The fixing assembly (32) includes a gear (321), one side of which is rotatably connected to a sliding seat (301) via a bearing. A central shaft (322) is fixedly connected to the side of the gear (321) away from the sliding seat (301). A connecting plate (323) is fixedly connected to the outer wall of the central shaft (322), and a connecting column (324) is fixedly connected to the inner side of the connecting plate (323). A knob (325) is fixedly connected to the outer wall of the end of the central shaft (322) away from the gear (321). A pressure column (326) is slidably connected to the inner wall of the sliding seat (301). The pressure column (326) slides through the gear (321) and extends into the cavity (305). A base plate (327) is fixedly connected to one end of the pressure column (326) away from the knob (325). The side of the base plate (327) away from the pressure column (326) is fixedly connected to the elastic component (306). A limit head (328) is fixedly connected to the side of the base plate (327) away from the elastic component (306). The limit head (328) slides through the outer wall of the sliding seat (301).

6. The printing screen frame of a printing press according to claim 5, characterized in that: An annular plate (329) is slidably connected to the outer wall of the central shaft (322). Connecting blocks (3210) are fixedly connected to both the upper and lower ends of the annular plate (329). The end of the connecting block (3210) away from the annular plate (329) is fixedly connected to the sliding seat (301). Slide rods (3211) are fixedly connected to both the left and right sides of the annular plate (329). A fixing plate (3212) is fixedly connected to the end of the slide rod (3211) away from the annular plate (329). The end of the fixing plate (3212) away from the slide rod (3211) is fixedly connected to the sliding seat (301). A locking assembly (33) is slidably connected to the outer wall of the slide rod (3211).

7. The printing screen frame of a printing press according to claim 6, characterized in that: The locking assembly (33) includes a second slider (331), the outer wall of the fifth slider (3211) is slidably connected to the second slider (331), the outer wall of the second slider (331) is rotatably connected to an elastic arc rod (332) via a bearing, the end of the elastic arc rod (332) away from the second slider (331) is rotatably connected to a locking cover (333) via a bearing, the outer wall of the second slider (331) is rotatably connected to an arc rod (334) via a bearing, and the end of the arc rod (334) away from the second slider (331) is rotatably connected to a connecting column (324).

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