Gap adjusting mechanism for printing roller set of carton printing machine
By designing a printing roller group gap adjustment mechanism with the movable table higher than the horizontal plate of the cutting table in the carton printing machine, the material problem caused by the synchronous adjustment of the printing roller is solved, ensuring smooth discharge of the carton.
Patent Information
- Application Number
- CN202422647079.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-08-01
- Estimated Expiration
- 2034-10-31
AI Technical Summary
When adjusting the pitch of the printing rollers, the existing carton printing press causes the top of the printing roller at a low level to be lower than the carton conveying platform, resulting in problems with carton clamping.
A carton printing press printing roller group gap adjustment mechanism is designed. The height of the movable table is set higher than the cross plate on the cutting table, and the thread directions of the two ends of the screw are designed in opposite directions, so that the printing rollers move in synchronously during the adjustment process, ensuring that the top of the printing roller is always higher than the cutting table and avoiding material jamming.
It realizes smooth discharge of cartons after printing, avoids clamping problems and improves the smoothness of printing operations.
Smart Images
Figure CN223173746U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of carton printing, in particular to a gap adjusting mechanism for a printing roller set of a carton printing machine. Background Art
[0002] A carton printing machine is a device for printing important text information and picture information related to products on cartons. When printing a carton, the carton printing machine usually performs double-sided printing, that is, the carton passes through between two opposite printing rollers, and the product information to be loaded on the carton will be printed on both sides of the carton at one time.
[0003] Since the size specifications of cartons vary depending on the products to be loaded and their thicknesses also often change, it is necessary to adjust the spacing between the printing rollers to facilitate printing work on cartons of different thicknesses. The adjustment mechanisms of some existing carton printing machines drive two printing rollers to move synchronously to achieve the effect of adjusting the spacing between the two printing rollers. However, when the two printing rollers are adjusted synchronously, the top of the printing roller at the lower position is lower than the platforms on its horizontal sides for conveying cartons, and the problem of paper jamming will occur during the printing and conveying process of the cartons. Summary of the Utility Model
[0004] In view of this, the purpose of the present utility model is to provide a gap adjusting mechanism for a printing roller set of a carton printing machine to solve the problem of paper jamming that occurs when the two printing rollers are adjusted synchronously, where the top of the printing roller at the lower position is lower than the platforms on its horizontal sides for conveying cartons.
[0005] Based on the above purpose, the present utility model provides a gap adjusting mechanism for a printing roller set of a carton printing machine, which includes a support table and a blanking table fixed on the top of the support table. Two limit blocks are relatively fixedly arranged on the support table. The gap adjusting mechanism for the printing roller set of the carton printing machine further includes:
[0006] A movable table slidably arranged between the blanking table and the limit blocks.
[0007] Two support columns oppositely arranged on the movable table.
[0008] Two connecting arms horizontally V-shaped and hinged to the top ends of the support columns.
[0009] A printing roller rotatably arranged between two horizontally adjacent connecting arms.
[0010] An adjusting part arranged on the support table for adjusting the spacing between the two printing rollers, and the adjusting part is also used to drive the movable table to move up and down.
[0011] Preferably, the blanking table and the limit blocks are relatively distributed on the top of the support table, and a cross bracing plate is arranged on the blanking table.
[0012] Preferably, when the two printing rollers are in contact with each other, the top of the movable table is flush with the top of the cross brace plate.
[0013] Preferably, the adjusting portion includes:
[0014] Two support frames relatively fixed to the top of the support table.
[0015] A lead screw vertically rotatably arranged in the support frame.
[0016] Two nut seats relatively sleeved on the lead screw in a threaded manner, and one end of the connecting arm is slidably connected to a transverse groove provided on the nut seat.
[0017] A driving member for driving the two lead screws to rotate synchronously and in the same direction.
[0018] Preferably, the thread direction in the middle section of the lead screw is opposite to the thread directions at both ends thereof.
[0019] Preferably, the two boundaries of the movable table are respectively sleeved on the two lead screws in a threaded manner, and the connection portion between the movable table and the lead screw is located at the bottom end of the lead screw.
[0020] Preferably, the gap adjusting mechanism for the printing roller group of the carton printing machine further includes a through groove provided on the movable table, and the through groove corresponds to the printing roller.
[0021] Preferably, the gap adjusting mechanism for the printing roller group of the carton printing machine further includes:
[0022] Four sliders fixedly provided on the movable table.
[0023] A guiding groove provided on the opposite surfaces of the blanking table and the limiting stop block, and one side of the slider is slidably sleeved in the guiding groove.
[0024] The beneficial effects of the present utility model: By setting the height of the movable table to be higher than the height of the cross plate on the blanking table and designing the thread directions at both ends of the lead screw to be opposite, during the adjustment process of the distance between the two printing rollers, the printing roller at the lower position can move synchronously and in the same direction as the movable table, always keeping the top of the printing roller at the lower position higher than the top of the movable table, and making the top of the movable table always higher than the top of the cross brace plate on the blanking table, so that the cardboard can smoothly fall onto the blanking table after printing, avoiding the problem of carding during the blanking of the printed cardboard. Description of the Drawings
[0025] To more clearly illustrate the technical solutions in the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only those of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0026] Figure 1 Schematic three-dimensional view of the present utility model Figure 1 ;
[0027] Figure 2 Schematic three-dimensional view of the present utility model Figure 2 ;
[0028] Figure 3 Schematic three-dimensional view of the present utility model Figure 3 .
[0029] The markings in the figure are:
[0030] 1. Support table; 2. Feeding table; 3. Limit stop; 4. Movable table; 5. Support column; 6. Connecting arm; 7. Printing roller; 8. Adjusting part; 81. Support frame; 82. Lead screw; 83. Nut seat; 84. Driving part; 9. Through groove; 10. Slide block; 11. Guide groove. Detailed implementation manners
[0031] To make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the following further details the present utility model in combination with specific embodiments.
[0032] It should be noted that unless otherwise defined, the technical terms or scientific terms used in the present utility model should have the ordinary meaning understood by those with ordinary skills in the field to which the present utility model belongs. The "first", "second" and similar terms used in the present utility model do not indicate any order, quantity or importance, but are only used to distinguish different components. The terms such as "including" or "comprising" mean that the elements or objects appearing before this word cover the elements or objects listed after this word and their equivalents, without excluding other elements or objects. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The terms such as "upper", "lower", "left", "right" are only used to represent relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.
[0033] Such as Figures 1 to 3As shown in the figure, a gap adjustment mechanism for the printing roller set of a carton printing machine includes a support table 1 and a blanking table 2 fixed to the top of the support table 1. Two limit blocks 3 are relatively fixedly arranged on the support table 1. The gap adjustment mechanism for the printing roller set of the carton printing machine further includes:
[0034] A movable table 4 slidably arranged between the blanking table 2 and the limit block 3.
[0035] Two support columns 5 oppositely arranged on the movable table 4.
[0036] Two connecting arms 6 horizontally V-shaped hinged to the top ends of the support columns 5.
[0037] A printing roller 7 rotatably arranged between two horizontally adjacent connecting arms 6.
[0038] An adjustment part 8 arranged on the support table 1 for adjusting the distance between the two printing rollers 7, and the adjustment part 8 is also used to drive the movable table 4 to move up and down.
[0039] As Figure 1 and Figure 2 shown, the blanking table 2 and the limit block 3 are relatively distributed on the top of the support table 1, and a cross brace is arranged on the blanking table 2.
[0040] When the two printing rollers 7 are in contact, the top of the movable table 4 is flush with the top of the cross brace.
[0041] With such a design, during the process of adjusting the distance between the two printing rollers 7, the top of the movable table 4 can be higher than or equal to the top of the cross brace on the blanking table 2, so that after printing a flat carton later, the printed carton can fall smoothly onto the cross brace, avoiding the problem of material jamming during the blanking process.
[0042] As Figure 2 and Figure 3 shown, the adjustment part 8 includes:
[0043] Two support frames 81 relatively fixedly arranged on the top of the support table 1.
[0044] A lead screw 82 vertically rotatably arranged in the support frame 81.
[0045] Two nut seats 83 relatively threadedly sleeved on the lead screw 82, and one end of the connecting arm 6 is slidably connected to a transverse groove arranged on the nut seat 83.
[0046] A driving part 84 for driving the two lead screws 82 to rotate synchronously and in the same direction. The driving part 84 includes a sprocket fixed to the top end of the lead screw 82. A chain is sleeved between the two sprockets, and a driving motor for driving one of the lead screws 82 to rotate is arranged on the support table 1.
[0047] The thread direction in the middle section of the lead screw 82 is opposite to the thread directions at its two ends.
[0048] The two boundaries of the movable table 4 are respectively sleeved on two lead screws 82 by threads, and the connection between the movable table 4 and the lead screw 82 is located at the bottom end of the lead screw 82.
[0049] With such a design, the two lead screws 82 can be driven to rotate in the same direction and synchronously by controlling the driving member 84, so that the moving directions of the two nut seats 83 on the lead screws 82 are opposite in the vertical direction, and the movable table 4 and the nut seat 83 located at the top end of the lead screw 82 move in the same direction and synchronously. And since the top of the movable table 4 is horizontally flush with the top of the cross brace on the blanking table 2 when the two printing rollers 7 are in the initial state, in this way, during the subsequent adjustment of the spacing between the printing rollers 7, the top of the movable table 4 can always be kept higher than or equal to the top of the cross brace on the blanking table 2, avoiding the problem of material jamming when the carton is unloaded after printing.
[0050] As Figures 1 to 3 shown, the printing roller set gap adjusting mechanism of the carton printing machine further includes a through groove 9 provided on the movable table 4, and the through groove 9 corresponds to the printing roller 7. In this way, most of the lower printing roller 7 can be hidden in the through groove 9, avoiding too large a height difference between the top of the lower printing roller 7 and the top of the movable table 4, and increasing the probability of material jamming when the carton is unloaded after printing.
[0051] As Figure 1 and Figure 2 shown, the printing roller set gap adjusting mechanism of the carton printing machine further includes:
[0052] Four sliders 10 fixedly provided on the movable table 4.
[0053] Guide grooves 11 provided on the opposite surfaces of the blanking table 2 and the limit stop 3, and one side of the slider 10 is slidably sleeved in the guide groove 11. With such a design, the freedom of the movable table 4 can be restricted through the limiting and guiding effects between the multiple sliders 10 and the guide grooves 11, so that it can only move up and down in the vertical direction, improving the stability of the movement of the movable table 4.
[0054] Working principle: Since the two printing rollers 7 are in a contacting state in the initial state, at this time, the top of the movable table 4 is flush with the top of the cross brace on the blanking table 2. Before using the printing rollers 7, the distance between the two printing rollers 7 needs to be adjusted according to the thickness of the flat carton to be printed. Start the driving member 84, which synchronously drives the two lead screws 82 to rotate in the same direction synchronously, so that the nut seats 83 and the movable table 4 at the top and bottom of the lead screw 82 move up synchronously, and the nut seat 83 in the middle section of the lead screw 82 moves down until the distance between the two printing rollers 7 reaches the required size. At this time, the top of the movable table 4 is higher than the top of the cross brace on the blanking table 2, and the top of the printing roller 7 at the lower position is higher than the top of the movable table 4. In this way, the subsequent carton printing operation can be carried out. And during printing, the carton is pushed from the side of the movable table 4 away from the blanking table 2 between the two printing rollers 7, which improves the smoothness of the carton printing operation and solves the problem of material jamming during the carton printing process.
[0055] Those of ordinary skill in the art should understand that the discussion of any of the above embodiments is only exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; under the concept of the present invention, the technical features in the above embodiments or different embodiments can also be combined, and the steps can be implemented in any order, and there are many other variations in different aspects of the present invention as described above, which are not provided in detail for the sake of brevity.
[0056] The present invention aims to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.
Claims
1. A gap adjusting mechanism for a printing roller set of a carton printing machine, comprising a support table (1) and a blanking table (2) fixed to the top of the support table (1). Two limit blocks (3) are relatively fixedly arranged on the support table (1), and it is characterized in that, The gap adjustment mechanism of the printing roller group of the carton printing machine further includes: A movable table (4) slidably disposed between the blanking table (2) and the limit stop (3); Two support columns (5) oppositely disposed on the movable table (4); Two connecting arms (6) horizontally V-shaped hinged to the top ends of the support columns (5); A printing roller (7) rotatably disposed between two horizontally adjacent connecting arms (6); An adjusting portion (8) disposed on the support table (1) for adjusting the distance between the two printing rollers (7), and the adjusting portion (8) is further configured to drive the movable table (4) to move up and down.
2. The gap adjustment mechanism of the printing roller set of the carton printing machine according to claim 1, characterized in that, The blanking table (2) and the limit stop (3) are oppositely distributed on the top of the support table (1), and a cross brace is provided on the blanking table (2).
3. The gap adjusting mechanism of the printing roller set of the carton printing machine according to claim 2, characterized in that, When the two printing rollers (7) are in contact, the top of the movable table (4) is flush with the top of the cross brace.
4. The gap adjusting mechanism of the printing roller set of the carton printing machine according to claim 3, characterized in that, The adjusting portion (8) includes: Two support frames (81) relatively fixed to the top of the support table (1); A lead screw (82) vertically rotatably disposed in the support frame (81); Two nut seats (83) relatively threadedly sleeved on the lead screw (82), and one end of the connecting arm (6) is slidably connected to a transverse groove provided on the nut seat (83); A driving member (84) for driving the two lead screws (82) to rotate synchronously and in the same direction.
5. The gap adjustment mechanism of the printing roller set of the carton printing machine according to claim 4, characterized in that, The thread direction of the middle section of the lead screw (82) is opposite to the thread directions at both ends thereof.
6. The gap adjusting mechanism of the printing roller set of the carton printing machine according to claim 5, characterized in that, The two boundaries of the movable table (4) are respectively threadedly sleeved on the two lead screws (82), and the connection between the movable table (4) and the lead screw (82) is located at the bottom end of the lead screw (82).
7. The gap adjusting mechanism of the printing roller set of the carton printing machine according to claim 6, characterized in that, The gap adjustment mechanism of the printing roller group of the carton printing machine further includes a through groove (9) provided on the movable table (4), and the through groove (9) corresponds to the printing roller (7).
8. The gap adjusting mechanism of the printing roller set of the carton printing machine according to claim 1, characterized in that, The gap adjustment mechanism of the printing roller group of the carton printing machine further includes: Four sliders (10) fixedly provided on the movable table (4); A guide groove (11) provided on the opposite surfaces of the blanking table (2) and the limit stop (3), and one side of the slider (10) is slidably sleeved in the guide groove (11).