Paper stacking device of offset press

Abstract

The utility model discloses a paper stacking device of an offset press, and belongs to the field of offset presses. Comprising a supporting carrier, a first blocking piece and a second blocking piece. A supporting surface is formed on the supporting carrier; the supporting surface is used for placing stacked paper; a first side plate and a second side plate are arranged on the two sides of the supporting carrier. The first side plate and the second side plate are in contact with stacked paper; the first blocking piece and the second blocking piece make contact with the rear portion of the paper. The paper conveying device has the beneficial effects that when paper is placed on the supporting carrier, the first blocking piece and the second blocking piece make contact with the ends, opposite to the paper conveying direction, of the paper, the stacked paper is prevented from inclining in the direction opposite to the conveying direction, the force and mode of supporting the paper by the first blocking piece and the second blocking piece cannot be changed, and the paper conveying efficiency is improved. And therefore, the paper can be uniformly conveyed, and the subsequent processing or printing quality is not influenced.

Description

Technical Field

[0001] This application relates to the field of offset printing machines, and more specifically, to a paper stacking device for an offset printing machine. Background Technology

[0002] Offset printing presses are a type of planographic printing press, consisting of three parts: paper feeding, printing, and paper delivery. A transmission device drives the coordinated movement of each part. During printing, the image is first transferred from the printing plate to the rubber roller, and then transferred from the rubber roller to the paper. The paper feeding section stacks the paper for printing, and the automatic rising function of the paper feed table ensures continuous paper feeding for the printing press.

[0003] In existing technology, the paper to be conveyed is placed on a support carrier. During the conveying process, the paper may tilt in the opposite direction of the conveying direction, causing the paper to be unable to be conveyed normally. At this time, it may be necessary for staff to support the back of the paper to be conveyed. However, it is difficult to keep the strength and method of manual intervention consistent, which can easily lead to uneven paper conveying and affect the quality of subsequent processing or printing. Utility Model Content

[0004] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0005] To address the technical problems mentioned in the background section above, some embodiments of this application provide a paper stacking device for an offset printing machine, comprising: a support carrier, a first stop, and a second stop; a support surface is formed on the support carrier; the support surface is used to place stacked papers; a first side plate and a second side plate are provided on both sides of the support carrier; the first side plate and the second side plate are in contact with the stacked papers; the first stop and the second stop are both in contact with the rear of the papers.

[0006] Furthermore, the paper stacking device includes: a fixing rod; the fixing rod is arranged along a direction perpendicular to the paper conveying direction; a slider is provided on the first side plate and the second side plate; the slider is slidably connected to the fixing rod; a locking member is provided on the slider, the locking member being used to fix the slider to the fixing rod.

[0007] Furthermore, the fixed rod has a first connecting plate and a second connecting plate at both ends; a guide rod is provided at the end of the first connecting plate and the second connecting plate that is away from the fixed rod; the guide rod is parallel to the fixed rod; the first stop and the second stop are both connected to the guide rod through a moving block; a sliding groove matching the guide rod is formed on the moving block; the moving block is slidably connected to the guide rod so that the moving block, the first stop and the second stop move along a direction perpendicular to the paper conveying direction.

[0008] Furthermore, a force-bearing plate and a movable plate are formed on both the first and second stop members; the force-bearing plate is connected to the movable plate; the force-bearing plate is used to contact the end opposite to the paper feeding direction; the movable block is provided with a movable groove; the movable plate is slidably connected to the movable groove, and the movable plate is fixed below the movable block by a fixing member.

[0009] Furthermore, the locking component includes: a control wheel and a threaded rod; a thread matching the threaded rod is formed on the slider; one end of the threaded rod is used to connect with the control wheel, and the other end of the threaded rod is provided with a rubber pad; when the control wheel rotates, the rubber pad abuts against the fixing rod to fix the first side plate and the second side plate.

[0010] Furthermore, the rubber pad has an extension; the threaded rod has a slot for inserting the extension; the diameter of the rubber pad is equal to or smaller than the diameter of the threaded rod.

[0011] Further, the fixing component includes: a rotating rod and a rotating wheel; the rotating rod and the rotating wheel are disposed on the side of the movable block opposite to the movable groove; a straight hole is formed on the movable block, and the straight hole, the sliding groove, and the movable groove are connected; the rotating rod is threadedly connected to the straight hole; when the rotating rod and the rotating wheel rotate, the rotating rod passes through the straight hole and abuts against the guide rod, a gap is formed between the upper part of the guide rod and the sliding groove, and the lower part of the guide rod abuts against the movable plate located in the movable groove, so that the movable block, the movable plate, and the force-bearing plate are fixed on the guide rod.

[0012] Furthermore, an anti-slip pad is provided at the end of the rotating rod away from the rotating wheel; the anti-slip pad is used to abut against the guide rod.

[0013] The beneficial effects of this application are as follows:

[0014] When the paper is placed on the support carrier, the first and second stops contact the ends of the paper that are opposite to the direction of paper transport, preventing the stacked paper from tilting in the opposite direction of transport. The force and manner in which the first and second stops support the paper do not change, thus enabling the paper to be transported evenly without affecting the quality of subsequent processing or printing. Attached Figure Description

[0015] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0016] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0017] In the attached diagram:

[0018] Figure 1 This is an overall schematic diagram based on an embodiment of this application;

[0019] Figure 2 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the fixing rod, the guide rod and some surrounding parts;

[0020] Figure 3 This is a structural schematic diagram as part of an embodiment, mainly showing the structure of the slider and some surrounding parts;

[0021] Figure 4 This is an exploded view of an embodiment, mainly showing the structure of the threaded rod, rubber pad, and surrounding parts;

[0022] Figure 5 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the fastener and some surrounding parts;

[0023] Figure 6 This is a structural schematic diagram of a part of the embodiment, mainly showing the structure of the slide, the moving groove and some surrounding parts;

[0024] Figure 7 This is an exploded view of an embodiment, mainly showing the structure of the rotating rod, the anti-slip pad, and some surrounding parts.

[0025] Figure label:

[0026] 1. Support carrier; 2. First stop; 3. Second stop; 231. Force plate; 232. Moving plate; 4. Slider; 41. Locking component; 411. Control wheel; 412. Threaded rod; 413. Rubber pad; 4131. Extension; 5. Fixing rod; 51. First side plate; 52. Second side plate; 53. First connecting plate; 54. Second connecting plate; 6. Guide rod; 7. Moving block; 71. Slide groove; 72. Moving groove; 73. Straight hole; 8. Fixing component; 81. Rotating rod; 811. Anti-slip pad; 82. Rotating wheel. Detailed Implementation

[0027] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0028] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0029] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0030] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0031] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0032] Reference Figure 1-7 ,

[0033] A paper stacking device for an offset printing machine includes: a support carrier 1, a first stop 2, and a second stop 3. The support carrier 1, the first stop 2, and the second stop 3 are all plate structures. A support surface is formed on the support carrier 1. The support surface is used to place stacked paper. A first side plate 51 and a second side plate 52 are provided on both sides of the support carrier 1. After the paper is placed on the support surface, the paper to be conveyed is conveyed along the paper conveying direction. The first side plate 51 and the second side plate 52 are arranged parallel to the paper conveying direction, contacting both sides of the paper to be conveyed and limiting the movement of the paper. The first stop 2 and the second stop 3 both contact the rear of the paper. In this embodiment, "rear" refers to the end opposite to the paper conveying direction. When the paper is placed on the support carrier 1, the first stop 2 and the second stop 3 contact the ends of the paper that are opposite to the paper conveying direction, preventing the stacked paper from tilting in the opposite direction of conveying. The force and method of the first stop 2 and the second stop 3 supporting the paper will not change, so that the paper can be conveyed evenly and will not affect the subsequent processing or printing quality.

[0034] Specifically, the paper stacking device includes a fixing rod 5. The fixing rod 5 is arranged perpendicular to the paper conveying direction, and both ends of the fixing rod 5 are fixed to the offset printing machine. A slider 4 is provided on the first side plate 51 and the second side plate 52. The slider 4 is slidably connected to the fixing rod 5, allowing the first side plate 51 and the second side plate 52 to move closer or further apart. A locking member 41 is provided on the slider 4, which is used to fix the slider 4 to the fixing rod 5. The locking member 41 includes a control wheel 411 and a threaded rod 412. A thread matching the threaded rod 412 is formed on the slider 4. One end of the threaded rod 412 is used to connect to the control wheel 411, and the other end of the threaded rod 412 is provided with a rubber pad 413. When the control wheel 411 rotates clockwise, the control wheel 411 and the threaded rod 412 gradually move towards the slider 4, and the rubber pad 413 located inside the slider 4 abuts against the fixing rod 5, thereby fixing the first side plate 51 and the second side plate 52. When the control wheel 411 rotates counterclockwise, the control wheel 411 and the threaded rod 412 gradually move outward from the threaded hole. The rubber pad 413 located inside the slider 4 gradually moves away from the fixed rod 5, allowing the first side plate 51 and the second side plate 52 to be pushed and moved. The threaded rod 412 directly contacts the fixed rod 5, which may cause scratches on the surface of the fixed rod 5. After prolonged use, the threaded rod 412 may not fit tightly against the fixed rod 5. The rubber pad 413 protects the surface of the fixed rod 5, preventing scratches. When placing paper on the support carrier 1, the operator can rotate the control wheel 411 and the threaded rod 412, manually push the first side plate 51 and the second side plate 52 away from each other, and then place the paper on the support carrier 1. After the paper is placed on the support carrier 1, the operator can push the first side plate 51 and the second side plate 52 closer together to limit the paper's position. By rotating the rotating wheel 82 and the threaded rod 412, the rubber pad 413 on the threaded rod 412 abuts against the fixing rod 5, thus fixing the first side plate 51 and the second side plate 52. The operation is simple. In other embodiments, a bearing surface is formed on the fixing rod 5, and the bearing surface is parallel to the side of the rubber pad 413 that contacts it, so that the rubber pad 413 can be more stable when in contact with the fixing rod 5.

[0035] Specifically, the rubber pad 413 has an extension 4131. The extension 4131 is a circular or square protrusion, preferably a circular protrusion in this embodiment. A slot for the extension 4131 to be inserted is formed on the threaded rod 412. The slot is a circular groove. The diameter of the rubber pad 413 is equal to or smaller than the diameter of the threaded rod 412. During assembly, the extension 4131 on the rubber pad 413 can be directly inserted into the slot formed on the threaded rod 412, or the rubber pad 413 can be fixed to the threaded rod 412 by applying glue. Since the diameter of the rubber pad 413 is equal to or smaller than the diameter of the threaded rod 412, after the rubber pad 413 is installed on the threaded rod 412, the threaded rod 412 can still be inserted into the slider 4, which facilitates assembly.

[0036] Specifically, the fixed rod 5 has a first connecting plate 53 and a second connecting plate 54 at both ends. A guide rod 6 is provided at the end of the first connecting plate 53 and the second connecting plate 54 that is separate from the fixed rod 5. Insertion holes matching the shapes of the guide rod 6 and the fixed rod 5 are formed on the first connecting plate 53 and the second connecting plate 54, and the guide rod 6 and the fixed rod 5 are connected and fixed to the first connecting plate 53 and the second connecting plate 54 through the insertion holes. The guide rod 6 is parallel to the fixed rod 5, and an inlet for placing paper is formed between the guide rod 6 and the fixed rod 5. The first stop 2 and the second stop 3 are both connected to the guide rod 6 through a moving block 7. A groove 71 matching the guide rod 6 is formed on the moving block 7. The moving block 7 is slidably connected to the guide rod 6, so that the moving block 7, the first stop 2, and the second stop 3 move in a direction perpendicular to the paper conveying direction. The arrangement of the moving block 7 and the guide rod 6 allows the distance between the first stop 2 and the second stop 3 to be adjusted, preventing the problem that when the paper is large or small, the distance between the first stop 2 and the second stop 3 is too close to effectively support the back of the paper.

[0037] Specifically, a force-bearing plate 231 and a movable plate 232 are formed on both the first stop 2 and the second stop 3. The force-bearing plate 231 is connected to the movable plate 232. The force-bearing plate 231 is used to contact the end opposite to the paper feeding direction. The movable block 7 is provided with a movable groove 72. The movable plate 232 is slidably connected to the movable groove 72, and the movable plate 232 is fixed to the bottom of the movable block 7 by a fixing member 8. When the operator places paper on the support carrier 1, the operator can push the movable plate 232 and the force-bearing plate 231 to move in a direction parallel to the paper feeding direction so that the paper can be placed on the support carrier 1. The fixing member 8 includes a rotating rod 81 and a rotating wheel 82. The rotating rod 81 and the rotating wheel 82 are provided on the side of the movable block 7 opposite to the movable groove 72. A straight hole 73 is formed on the movable block 7, and the rotating rod 81 is threadedly connected to the straight hole 73. The slide groove 71 and the moving groove 72 are connected. When the moving plate 232 is inserted into the moving groove 72, the moving plate 232 will contact the bottom of the guide rod 6, and the lower part of the moving plate 232 will be limited by the moving groove 72. When the guide rod 6 is in the slide groove 71, the lower part of the guide rod 6 contacts the moving plate 232, and a gap is formed between the upper part of the guide rod 6 and the slide groove 71. When the rotating rod 81 rotates, the end of the rotating rod 81 that contacts the guide rod 6 will push the guide rod 6 to move towards the moving plate 232. However, the two ends of the guide rod 6 are limited by the first connecting plate 53 and the second connecting plate 54, so the guide rod 6 will not move towards the moving plate 232. On the contrary, the moving block 7 and the moving plate 232 located in the moving groove 72 will gradually move towards the rotating rod 81. At this time, after the moving plate 232 moves upward, the moving plate 232 will be pressed against the guide rod 6 and fixed, so that the moving block 7, the moving plate 232 and the force plate 231 are fixed on the guide rod 6. The operation is simple.

[0038] Specifically, an anti-slip pad 811 is provided at the end of the rotating rod 81 away from the rotating wheel 82. The anti-slip pad 811 is used to abut against the guide rod 6.

[0039] The above description is merely a selection of preferred embodiments of this disclosure and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in the embodiments of this disclosure is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the above-described inventive concept. For example, technical solutions formed by substituting the above-described features with (but not limited to) technical features with similar functions disclosed in the embodiments of this disclosure.

Claims

1. A paper stacking device for an offset printing machine, characterized in that, include: Supporting carrier, first stop, and second stop; A support surface is formed on the support carrier; the support surface is used to place stacked papers. The support carrier is provided with a first side plate and a second side plate on both sides; the first side plate and the second side plate are in contact with the stacked paper; Both the first stop and the second stop are in contact with the rear of the paper.

2. The paper stacking device for an offset printing machine according to claim 1, characterized in that: The paper stacking device includes: a fixing rod; The fixing rod is arranged perpendicular to the paper conveying direction; The first side plate and the second side plate are provided with sliders; the sliders are slidably connected to the fixed rod; The slider is provided with a locking component, which is used to fix the slider to the fixing rod.

3. The paper stacking device for an offset printing machine according to claim 2, characterized in that: The fixed rod is provided with a first connecting plate and a second connecting plate at both ends; The first connecting plate and the second connecting plate are provided with guide rods at one end away from the fixed rod; the guide rods are parallel to the fixed rods. Both the first stop and the second stop are connected to the guide rod via a movable block; A groove matching the guide rod is formed on the movable block; the movable block is slidably connected to the guide rod so that the movable block, the first stop and the second stop move along a direction perpendicular to the paper conveying direction.

4. The paper stacking device for an offset printing machine according to claim 3, characterized in that: Both the first stop and the second stop have a force-bearing plate and a movable plate formed on them; The force-bearing plate is connected to the movable plate; The force plate is used to contact the end of the paper that is in the opposite direction of the paper feeding; The movable block is provided with a movable groove; the movable plate is slidably connected to the movable groove, and the movable plate is fixed below the movable block by a fixing member.

5. The paper stacking device for an offset printing machine according to claim 4, characterized in that: The locking mechanism includes: a control wheel and a threaded rod; The slider has a thread that matches the threaded rod; One end of the threaded rod is used to connect with the control wheel, and the other end of the threaded rod is provided with a rubber pad; When the control wheel rotates, the rubber pad abuts against the fixing rod to fix the first side plate and the second side plate.

6. The paper stacking device for an offset printing machine according to claim 5, characterized in that: The rubber pad has an extension; the threaded rod has a slot for the extension to be inserted. The diameter of the rubber pad is equal to or smaller than the diameter of the threaded rod.

7. The paper stacking device for an offset printing machine according to claim 6, characterized in that: The fixing component includes: a rotating rod and a rotating wheel; The rotating rod and the rotating wheel are disposed on the side of the moving block opposite to the moving groove; A straight hole is formed on the movable block, and the straight hole, the sliding groove, and the movable groove are connected; the rotating rod is threadedly connected to the straight hole; When the rotating rod and the rotating wheel rotate, the rotating rod passes through the straight hole and abuts against the guide rod. A gap is formed between the upper part of the guide rod and the sliding groove, and the lower part of the guide rod abuts against the moving plate located in the moving groove, so that the moving block, the moving plate and the force plate are fixed on the guide rod.

8. The paper stacking device for an offset printing machine according to claim 7, characterized in that: An anti-slip pad is provided at the end of the rotating rod away from the rotating wheel; The anti-slip pad is used to abut against the guide rod.

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