Guide rail adjusting mechanism of multi-folding-position self-adaptive folding machine
By using an adaptive folding machine guide rail adjustment mechanism, which utilizes the planar design of the adjustment block and the limiting protrusion, the problems of inaccurate paper positioning and easy deviation in the folding machine are solved, thereby achieving protection of paper edges and improvement of folding accuracy.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGCHUN JUYUAN COLOR PRINTING CO LTD
- Filing Date
- 2025-05-13
- Publication Date
- 2026-04-24
AI Technical Summary
In existing folding machines, the paper is positioned by collision with the vertical plane on the third guide rail, which causes the edges of thin paper to bend, affecting positioning accuracy and product quality. At the same time, the paper is prone to shifting during the folding process, reducing folding accuracy.
The multi-fold adaptive folding machine guide rail adjustment mechanism utilizes the height difference and curved transition between the first and second planes of the adjustment block, combined with the limiting protrusions and adaptive components. The first plane closely contacts the edge of the paper, while the second plane leaves a gap to clamp the edge of the paper, ensuring stable movement of the paper within the guide rail.
It improves the impact resistance of paper edges, reduces paper damage, ensures folding accuracy, stabilizes paper position, and enhances the positioning accuracy and product quality of the folding machine.
Smart Images
Figure CN224160174U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of folding machine technology, and in particular to a multi-fold adaptive folding machine guide rail adjustment mechanism. Background Technology
[0002] A folding machine is a mechanical device that folds printed paper into specific shapes as needed. Common examples include invitations and instruction manuals.
[0003] The folding machine includes three guide rails. The first guide rail is responsible for feeding paper, the third guide rail is responsible for outputting paper, and the second guide rail is responsible for positioning paper. Under the action of the first guide rail, one end of the paper passes through the folding blade and extends into the second guide rail. The second guide rail has adjustable stops to limit the length of the paper extending into the second guide rail and thereby achieve positioning, ensuring that the folding blade is positioned at the designated position on the paper, achieving precise folding.
[0004] In the existing technology, the stop on the third guide rail limits the position of the paper by vertical collision. The paper itself is relatively thin and light, and the collision can easily cause the edge of the paper to bend, which affects the positioning accuracy and reduces the product quality. At the same time, the positioning effect of positioning by direct collision is poor, and the paper is prone to shift during the pressing of the folding knife, which affects the folding accuracy. Utility Model Content
[0005] The purpose of this invention is to provide a multi-fold adaptive folding machine guide rail adjustment mechanism, which can tightly fix the edge of the paper, protecting the paper while improving positioning stability.
[0006] This utility model provides a multi-fold adaptive folding machine guide rail adjustment mechanism, including:
[0007] An adjusting block, the bottom surface of which is composed of a first plane and a second plane, with a height difference between the first plane and the second plane and a curved transition connection, the vertical height of the first plane being lower than that of the second plane, and a limiting protrusion on the end of the first plane away from the second plane;
[0008] The second guide rail, the adjusting block is mounted on the second guide rail, and the lower surface of the limiting protrusion does not exceed the upper surface of the second guide rail;
[0009] The paper moves along the second guide rail until the edge of the paper abuts against the limiting protrusion sidewall. At this time, the first plane abuts against the paper and cooperates with the second guide rail to clamp the paper.
[0010] Preferably, the second guide rail includes a top plate and a bottom plate, with a gap between the top plate and the bottom plate. The top plate is in the shape of a fence, and a sliding groove is provided on the bottom surface of the adjusting block. The adjusting block is slidably assembled on the top plate through the sliding groove, and the bottom surface of the top plate is flush with the second plane.
[0011] Preferably, the edges of both the top plate and the bottom plate near the paper entry point are chamfered.
[0012] Preferably, the base plate is in the shape of a fence, and the limiting protrusion on the adjusting block is embedded in the gap on the base plate.
[0013] Preferably, the top plate is slidably mounted on the bottom plate, and the distance between the top plate and the bottom plate can be changed by sliding the top plate up and down.
[0014] Preferably, the multi-fold adaptive folding machine guide rail adjustment mechanism further includes an adaptive component, which includes a first clamping plate and a second clamping plate that are directly opposite each other. The first clamping plate is fixedly connected to the top plate, and the second clamping plate is fixedly connected to the bottom plate. When the clamping jaws of the first clamping plate and the second clamping plate are closed, the first plane abuts against the bottom plate.
[0015] Preferably, a first wear-resistant block is fixedly connected to the first clamping plate, and a second wear-resistant block is fixedly connected to the second clamping plate. When the clamping jaws of the first clamping plate and the second clamping plate are closed, the first wear-resistant block is attached to the second wear-resistant block.
[0016] Preferably, the base plate is provided with an assembly groove, the top plate is slidably assembled in the assembly groove, the assembly groove is also provided with a support block and a screw, one end of the screw is fixedly connected to the base plate, the other end of the screw passes through the top plate and the support block in sequence, a spring is assembled between the top plate and the support block, and a nut is threaded onto the screw to abut against the top surface of the support block.
[0017] Preferably, the spring force presses down on the top plate, causing the first clamping plate and the second clamping plate to close.
[0018] Preferably, the edges of the second plane away from the first plane are provided with rounded corners.
[0019] The technical solution of this utility model uses an adjusting block to position the paper on the second guide rail. A gap is left between the second plane and the paper to ensure that the paper passes smoothly in the area below the second plane. The first plane is in close contact with the edge of the paper, which not only fixes the position of the paper but also improves the impact resistance of the paper edge. Finally, the side of the limiting protrusion restricts the position of the paper. The paper is protected during the entry process, which effectively reduces damage to the edge of the paper. At the same time, the edge of the paper is fixed during the exit process, making the position of the paper near the adjusting block stable and effectively improving the folding accuracy. Attached Figure Description
[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0021] Figure 1 This is an assembly drawing of a multi-fold adaptive folding machine guide rail adjustment mechanism according to the present invention;
[0022] Figure 2 for Figure 1 Axonometric drawing of the guide rail adjustment mechanism of a multi-fold adaptive folding machine;
[0023] Figure 3 for Figure 2 Axonometric view of the base plate in the guide rail adjustment mechanism of a multi-fold adaptive folding machine;
[0024] Figure 4 for Figure 2 Axonometric view of the top plate in the guide rail adjustment mechanism of a multi-fold adaptive folding machine;
[0025] Figure 5 for Figure 2 Assembly drawing of the adjusting block in the guide rail adjusting mechanism of a multi-fold adaptive folding machine;
[0026] Figure 6 for Figure 2 Assembly drawing of the screw in the guide rail adjustment mechanism of a multi-fold adaptive folding machine.
[0027] Explanation of reference numerals in the attached figures:
[0028] 1. Adjusting block; 01. First plane; 02. Second plane; 11. Limiting protrusion; 2. Second guide rail; 21. Top plate; 22. Bottom plate; 221. Assembly slot; 23. Support block; 24. Screw; 25. Nut; 26. Spring; 3. Adaptive component; 31. First clamping plate; 32. Second clamping plate; 33. First wear-resistant block; 34. Second wear-resistant block;
[0029] A. First guide rail; B. Third guide rail; C. Folding knife; D. Folding roller. Detailed Implementation
[0030] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0031] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.
[0032] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0033] Combination Figure 1 As shown, the assembly position of the multi-fold adaptive folding machine guide rail adjustment mechanism provided by this utility model on the folding machine is shown.
[0034] Combination Figures 2 to 5 As shown, the multi-fold adaptive folding machine guide rail adjustment mechanism provided by this utility model includes an adjustment block 1 and a second guide rail 2.
[0035] Combination Figures 2 to 5 As shown, the bottom surface of the adjustment block 1 is composed of a first plane 01 and a second plane 02. There is a height difference between the first plane 01 and the second plane 02 and they are connected by a curved transition. The vertical height of the first plane 01 is lower than that of the second plane 02. A limiting protrusion 11 is provided on the end of the first plane 01 away from the second plane 02.
[0036] The second guide rail 2 includes a top plate 21 and a bottom plate 22. The top plate 21 is slidably mounted on the bottom plate 22, with a gap between them. The top plate 21 can change the distance between it and the bottom plate 22 by sliding up and down. The top plate 21 is fence-shaped. The bottom surface of the adjusting block 1 has a groove 12. The adjusting block 1 is slidably mounted on the top plate 21 of the second guide rail 2 through the groove 12. The bottom surface of the top plate 21 is flush with the second plane 02 to ensure that the paper passes smoothly within the second guide rail 2. The bottom plate 22 is fence-shaped, and the limiting protrusion 11 on the adjusting block 1 is correspondingly embedded in the gap on the bottom plate 22, so that the lower surface of the limiting protrusion 11 always remains above the upper surface of the second guide rail 2 during the up and down displacement, ensuring the limiting effect.
[0037] The first clamping plate 31 is fixedly connected to the top plate 21, and the second clamping plate 32 is fixedly connected to the bottom plate 22. The top plate 21 and the bottom plate 22 are directly opposite each other and together form the adaptive component 3. When the first plane 01 abuts against the upper surface of the bottom plate 22, the clamping joint between the first clamping plate 31 and the second clamping plate 32 is just closed. By clamping the sample paper between the first clamping plate 31 and the second clamping plate 32, the gap size between the first plane 01 and the upper surface of the bottom plate 22 can automatically adapt to different paper sizes.
[0038] Furthermore, the base plate 22 is provided with an assembly groove 221, and the top plate 21 is slidably assembled in the assembly groove 221. A spring 26 is provided in the assembly groove 221 to press down the top plate 21, forcing the first plane 01 to fit against the upper surface of the base plate 22. The actual assembly method is as follows: the base plate 22 is provided with an assembly groove 221, and from bottom to top in the assembly groove 221 are the top plate 21, the spring 26, the support block 23 and the nut 25. One end of the screw 24 is fixedly connected to the base plate 22, and the other end passes through the top plate 21, the spring 26 and the support block in sequence. 23. Finally, the threaded connection nut 25 and spring 26 press down on the top plate 21, driving it to approach the bottom plate 22, indirectly causing the first clamping plate 31 and the second clamping plate 32 to close. At the same time, the support block 23 is driven to abut against the nut 25, so that adjusting the position of the nut 25 on the screw 24 can change the compression state and elastic force of the spring 26. The elastic force of the spring 26 directly affects the force of the first clamping plate 31 and the second clamping plate 32 in holding the sample paper, as well as the force of the first plane 01 and the upper surface of the bottom plate 22 in holding the paper.
[0039] Debugging process: A sample paper identical to the paper being processed is clamped in the clamping space between the first clamping plate 31 and the second clamping plate 32. Then, through trial operation, the position of the nut 25 on the screw 24 is adjusted, and the spring 26 is adjusted to a reasonable compression state. This means that the paper can pass through the clamping section between the first plane 01 and the upper surface of the base plate 22 under the action of the first guide rail A, abutting against the side wall of the limiting protrusion 11. Simultaneously, it is ensured that the paper cannot detach from the clamping section between the first plane 01 and the upper surface of the base plate 22 without external force. This achieves a fixing effect on the edge of the paper by the first plane 01 and the base plate 22 during the downward pressing of the folding knife C. This ensures that the length of the paper from the adjusting block 1 to the folding knife C section is stable and controllable at the moment of bending.
[0040] Working process: After debugging, under the action of the first guide rail A, the paper passes under the folding knife C and enters the second guide rail 2. One end of the paper passes under the second plane 02 and the first plane 01 in sequence and finally abuts against the side wall of the limiting protrusion 11. Then the folding knife C works, pressing the paper down to the folding roller D. During the process of the folding knife C pressing down the paper, the first plane 01 and the base plate 22 fix the edge of the paper by clamping it. After the folding knife C presses down the paper and completely abuts against the folding roller D, the folding roller D performs the folding work while dragging the paper away from the position below the first plane 01. Finally, the paper folded by the folding roller D is discharged from the folding machine under the action of the third guide rail B.
[0041] In this embodiment, the paper located on the second guide rail 2 is positioned by the adjusting block 1. A gap is left between the second plane 02 and the paper to ensure that the paper passes smoothly in the area below the second plane 02. The first plane 01 is in close contact with the edge of the paper, which not only fixes the position of the paper but also improves the impact resistance of the paper edge. Finally, the side of the limiting protrusion 11 restricts the position of the paper. The paper is protected during the entry process, which effectively reduces the damage to the edge of the paper. At the same time, the edge of the paper is fixed during the exit process, which makes the position of the paper near the adjusting block 1 stable and effectively improves the folding accuracy.
[0042] In this embodiment, the height difference between the first plane 01 and the second plane 02 is designed to ensure that the paper can pass smoothly under the second plane 02. However, the thickness of the paper will change slightly when it is squeezed. Considering that the thickness of commonly used paper is generally between 0.1 and 0.3 mm, it is recommended that the height difference be controlled above 0.1 mm.
[0043] In some embodiments, combined with Figures 3 to 5 As shown, the top plate 21, bottom plate 22, and adjusting block 1 have chamfered edges near the paper entry direction to prevent the paper edges from being bumped. The chamfer on the adjusting block 1 is located at the edge of the second plane 02 away from the first plane 01. Furthermore, this chamfer can be either a rounded corner or a right angle, helping the paper to move more smoothly within the second guide rail 2.
[0044] In some embodiments, combined with Figure 2 , Figure 3 , Figure 4 and Figure 6 As shown, a first wear-resistant block 33 and a second wear-resistant block 34 are respectively installed on the first clamping plate 31 and the second clamping plate 32. When the clamping joints of the first clamping plate 31 and the second clamping plate 32 are closed, the first wear-resistant block 33 and the second wear-resistant block 34 replace the first clamping plate 31 and the second clamping plate 32 for fitting, which facilitates leveling, reduces the overall assembly difficulty and subsequent maintenance.
[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.
Claims
1. A guide rail adjustment mechanism for a multi-fold adaptive folding machine, characterized in that, include: Adjustment block (1), the bottom surface of the adjustment block (1) is composed of a first plane (01) and a second plane (02), there is a height difference between the first plane (01) and the second plane (02) and they are connected by a curved transition, the vertical height of the first plane (01) is lower than that of the second plane (02), and a limiting protrusion (11) is provided on the end of the first plane (01) away from the second plane (02). The second guide rail (2) is fitted with the adjusting block (1), and the lower surface of the limiting protrusion (11) does not exceed the upper surface of the second guide rail (2). The paper moves along the second guide rail (2) until the edge of the paper abuts against the side wall of the limiting protrusion (11). At this time, the first plane (01) abuts against the paper and cooperates with the second guide rail (2) to clamp the paper.
2. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 1, characterized in that, The second guide rail (2) includes a top plate (21) and a bottom plate (22). There is a gap between the top plate (21) and the bottom plate (22). The top plate (21) is in the shape of a fence. The bottom surface of the adjusting block (1) is provided with a sliding groove (12). The adjusting block (1) is slidably mounted on the top plate (21) through the sliding groove (12). The bottom surface of the top plate (21) is flush with the second plane (02).
3. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 2, characterized in that, Both the top plate (21) and the bottom plate (22) have chamfered edges near the paper entry point.
4. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 2, characterized in that, The base plate (22) is in the shape of a fence, and the limiting protrusion (11) on the adjusting block (1) is embedded in the gap on the base plate (22).
5. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 2, characterized in that, The top plate (21) is slidably mounted on the bottom plate (22), and the distance between the top plate (21) and the bottom plate (22) can be changed by sliding up and down.
6. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 5, characterized in that, It also includes an adaptive component (3), which includes a first clamping plate (31) and a second clamping plate (32) that are directly opposite each other. The first clamping plate (31) is fixedly connected to the top plate (21), and the second clamping plate (32) is fixedly connected to the bottom plate (22). When the clamping jaws of the first clamping plate (31) and the second clamping plate (32) are closed, the first plane (01) abuts against the bottom plate (22).
7. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 6, characterized in that, A first wear-resistant block (33) is fixedly connected to the first clamping plate (31), and a second wear-resistant block (34) is fixedly connected to the second clamping plate (32). When the clamping mouth of the first clamping plate (31) and the second clamping plate (32) is closed, the first wear-resistant block (33) fits against the second wear-resistant block (34).
8. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 7, characterized in that, The base plate (22) is provided with an assembly groove (221), and the top plate (21) is slidably assembled in the assembly groove (221). The assembly groove (221) is also provided with a support block (23) and a screw (24). One end of the screw (24) is fixedly connected to the base plate (22), and the other end of the screw (24) passes through the top plate (21) and the support block (23) in sequence. A spring (26) is assembled between the top plate (21) and the support block (23), and a nut (25) is threaded onto the screw (24) to abut against the top surface of the support block (23).
9. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 8, characterized in that, The spring (26) presses down on the top plate (21) with its elastic force, causing the first clamping plate (31) and the second clamping plate (32) to close.
10. The multi-fold adaptive folding machine guide rail adjustment mechanism according to claim 1, characterized in that, The second plane (02) has rounded corners at the edges away from the first plane (01).