A feeding device for a thin paperboard printing machine

Abstract

This utility model relates to the field of printing feeding technology, specifically a feeding device for a thin cardboard printing machine. It includes two symmetrical fixed blocks and a flattening assembly. The flattening assembly has two sets, each mounted on the left and right sides of the two fixed blocks. Each flattening assembly includes a mounting plate, which is also mounted on the left and right sides of the two fixed blocks. A slot is formed between the adjacent sides of the two sets of mounting plates, and a locking block is engaged inside each slot. A set of elastic steel plates is fixedly connected between each locking block and the top wall of the slot. A second roller is rotatably connected between two corresponding locking blocks in each set via a bearing. A first roller is rotatably connected below the adjacent sides of each set of mounting plates. By setting the flattening assembly, the cardboard can be flattened during feeding, further improving the printing effect during subsequent printing.

Description

Technical Field

[0001] This utility model is specifically a feeding device for a thin paperboard printing machine, belonging to the field of printing material feeding technology. Background Technology

[0002] Printing is a technology that uses processes such as plate making, inking, and pressing to transfer ink onto paper, textiles, plastics, leather, etc., to mass-produce the content of the original manuscript, including text, pictures, photographs, and anti-counterfeiting materials.

[0003] When printing on thin cardboard, a large sheet of cardboard is usually fed directly through a conveyor. However, when feeding thin cardboard, if the cardboard itself has wrinkles, the uneven stress on the cardboard can cause the wrinkles to widen. This can lead to uneven printing when printing on wrinkled cardboard, affecting the printing quality.

[0004] In view of this, this utility model is hereby proposed. Utility Model Content

[0005] The purpose of this utility model is to provide a feeding device for a thin paperboard printing machine to solve the above problems. When printing on paperboard with wrinkles, it can effectively flatten the paperboard and prevent wrinkles from forming during feeding, thus affecting the quality of the printed product.

[0006] This utility model achieves the above-mentioned objective through the following technical solution: a feeding device for a thin paperboard printing machine, comprising two symmetrical fixed blocks, a flattening assembly, and two sets of flattening assemblies, each set of which is respectively installed on the left and right sides of the two fixed blocks. Each flattening assembly includes a mounting plate, which is respectively installed on the left and right sides of the two fixed blocks. A slot is provided between the sides of the two sets of mounting plates that are close to each other. A locking block is engaged inside each slot. A set of elastic steel plates is fixedly connected between each locking block and the top wall of the slot. A second roller is rotatably connected between two corresponding locking blocks in each set via a bearing. A first roller is rotatably connected below the sides of the corresponding mounting plates in each set that are close to each other.

[0007] Furthermore, a mounting plate is placed on the left side of the fixing block, and the conveying surface of the mounting plate is connected to the first circular roller located on the left side. The mounting plate can provide power for the conveying of the first circular roller located on the left side by its own power.

[0008] Furthermore, the highest point of the outer surface of the first roller corresponds to the highest point of the plane of the mounting plate, which allows the paper to be transported more smoothly.

[0009] Furthermore, the auxiliary component is installed in the middle of the two adjacent sides of the fixed blocks. The auxiliary component includes two square tubes, which are respectively fixedly connected to the bottom surfaces of the two fixed blocks. A lifting block is snapped between the adjacent sides of the two square tubes. A guide rod is fixedly connected between the bottom wall and the top wall of each square tube. Each guide rod is slidably connected to its corresponding lifting block. A spring is fixedly connected between each lifting block and the top wall of the square tube. A support rod is fixedly connected between the adjacent sides of the two lifting blocks.

[0010] Furthermore, the two springs are respectively connected to their corresponding guide rods, which can prevent the springs from deforming when compressed or extended.

[0011] Furthermore, the top of the cross-sectional shape of the support rod is semi-circular, and the support rod has a smooth outer surface, which allows the paper to be transported more smoothly.

[0012] Furthermore, the bottom surfaces of the two fixed blocks are fixedly connected to the same support frame, which is used to support the entire device.

[0013] The technical effects and advantages of this utility model are as follows: 1. When printing on thin cardboard, the first roller on the left side needs to be brought into contact with the mounting plate. At this time, the mounting plate provides power for the synchronous conveying of the first roller, eliminating the need for an additional drive motor. Next, the second roller on the right side is pulled upwards to pass one end of the cardboard between the second roller on the right side and the first roller. Then, the cardboard is passed over the support rod and the second roller on the left side is pulled upwards. The left end of the cardboard is then placed on the surface of the mounting plate. With the conveying of the mounting plate and the first roller, the cardboard can be smoothly fed. At this time, the second roller, under the action of the elastic steel plate and the guidance of the clamping block and the slot, will move towards the position close to the first roller to clamp it. During the conveying process, the wrinkles on the cardboard will be smoothed out by the squeezing of the two sets of first and second rollers, thus preventing uneven printing during subsequent printing.

[0014] By setting up a flattening component, the cardboard can be smoothed during the feeding process, which further improves the printing effect during subsequent printing.

[0015] 2. During the printing process, the bottom of the cardboard rests on the surface of the support rod. When the cardboard is being transported, it will pass over the surface of the support rod. At this time, the support rod will inevitably be subjected to downward pressure. With the action of the lifting block and the square tube guide, and the guide rod guiding the movement of the lifting block, the lifting block can be lowered slightly. At this time, the spring force will provide an upward force to the cardboard, which will keep the cardboard in a straight state.

[0016] By setting auxiliary components, the flattening component can be assisted in flattening the wrinkles of the cardboard, which can further make the flattening component smoother when feeding the cardboard, and further make the printing more uniform. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a top view of the structure of this utility model; Figure 3 This is a side sectional view of the present invention. Figure 4 For the present utility model Figure 3 A schematic diagram of the structure at point A; Figure 5 This is a schematic cross-sectional view of the mounting plate of this utility model; In the diagram: 1. Flattening assembly; 2. Auxiliary assembly; 3. Fixing block; 4. Mounting plate; 5. Slot; 6. Locking block; 7. Elastic steel plate; 8. First roller; 9. Second roller; 10. Square tube; 11. Lifting block; 12. Guide rod; 13. Spring; 14. Support rod; 15. Support frame. Detailed Implementation

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

[0019] Please see Figure 1-5 As shown, Example 1: A feeding device for a thin paperboard printing machine includes two symmetrical fixed blocks 3, a flattening assembly 1, and two sets of flattening assemblies 1. The two sets of flattening assemblies 1 are respectively installed on the left and right sides of the two fixed blocks 3. The flattening assembly 1 includes a mounting plate 4, which is respectively installed on the left and right sides of the two fixed blocks 3. A slot 5 is provided between the sides of the two sets of mounting plates 4 that are close to each other. A locking block 6 is locked inside each slot 5. A set of elastic steel plates 7 is fixedly connected between each locking block 6 and the top wall of the slot 5. A second roller 9 is rotatably connected between the two corresponding locking blocks 6 in each set through a bearing. A first roller 8 is rotatably connected below the sides of the corresponding mounting plates 4 that are close to each other.

[0020] A mounting plate 4 is placed on the left side of the fixed block 3. The conveying surface of the mounting plate 4 is connected to the first circular roller 8 located on the left side. The mounting plate 4 can provide power for the conveying of the first circular roller 8 located on the left side by its own power.

[0021] The highest point of the outer surface of the first roller 8 corresponds to the highest point of the plane of the mounting plate 4, which allows the paper to be fed more smoothly.

[0022] In Example 2, when printing on thin cardboard, the first roller 8 on the left side needs to be brought into contact with the mounting plate 4. At this time, the conveying of the mounting plate 4 provides power for the synchronous conveying of the first roller 8, without the need for an additional drive motor. Then, the second roller 9 on the right side is pulled upward to pass one end of the cardboard between the second roller 9 on the right side and the first roller 8. Next, the cardboard is passed over the support rod 14 and the second roller 9 on the left side is pulled upward. Then, the left end of the cardboard is placed on the surface of the mounting plate 4. With the conveying of the mounting plate 4 and the first roller 8, the cardboard can be smoothly fed. At this time, the second roller 9 will move towards the position close to the first roller 8 under the action of the elastic steel plate 7 and the guiding action of the clamping block 6 and the clamping groove 5. During the conveying process, the wrinkles on the cardboard will be smoothed out by the squeezing of the two sets of first roller 8 and second roller 9, so as to avoid uneven printing in the subsequent printing process.

[0023] By setting up the flattening component 1, the cardboard can be flattened during the feeding process, which can further improve the printing effect on the cardboard later.

[0024] The auxiliary component 2 is installed in the middle of the two fixed blocks 3 on their adjacent sides. The auxiliary component 2 includes a square tube 10. There are two square tubes 10. The two square tubes 10 are fixedly connected to the bottom surfaces of the two fixed blocks 3 respectively. A lifting block 11 is snapped between the adjacent sides of the two square tubes 10. A guide rod 12 is fixedly connected between the bottom wall and the top wall of the square tube 10. Each guide rod 12 is slidably connected to its corresponding lifting block 11. A spring 13 is fixedly connected between each lifting block 11 and the top wall of the square tube 10. A support rod 14 is fixedly connected between the adjacent sides of the two lifting blocks 11.

[0025] Two springs 13 are respectively connected to their corresponding guide rods 12, which can prevent the springs 13 from deforming when compressed or stretched.

[0026] The top of the cross-sectional shape of the support rod 14 is semi-circular, and the support rod 14 has a smooth outer surface, which allows the paper to be fed more smoothly.

[0027] The bottom surfaces of the two fixed blocks 3 are fixedly connected to the same support frame 15, which is used to support the entire device.

[0028] During the printing process, the bottom of the cardboard rests on the surface of the support rod 14. When the cardboard is being transported, it will pass over the surface of the support rod 14. At this time, the support rod 14 will inevitably be subjected to downward pressure. Under the guidance of the lifting block 11 and the square tube 10, and the guidance of the guide rod 12 on the movement position of the lifting block 11, the lifting block 11 can be lowered slightly. At this time, under the influence of the elastic force of the spring 13, it will provide an upward force on the cardboard, so that the cardboard can always be kept in a straight state.

[0029] By setting auxiliary component 2, the flattening component 1 can be used to flatten the wrinkles of the cardboard, which can further make the flattening component 1 smoother when feeding the cardboard, and further make the printing more uniform.

[0030] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0031] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A feeding device for a thin paperboard printing machine, comprising two symmetrically fixed blocks (3), characterized in that: The flattening assembly (1) has two sets, and the two sets of flattening assemblies (1) are respectively installed on the left and right sides of two fixed blocks (3); the flattening assembly (1) includes a mounting plate (4), which is respectively installed on the left and right sides of two fixed blocks (3). A slot (5) is provided between the sides of the two sets of mounting plates (4) that are close to each other. A locking block (6) is locked inside each slot (5). A set of elastic steel plates (7) is fixedly connected between each locking block (6) and the top wall of the slot (5). A second round roller (9) is rotatably connected between the two corresponding locking blocks (6) in each set through a bearing. A first round roller (8) is rotatably connected below the sides of the corresponding mounting plates (4) that are close to each other in each set.

2. The feeding device for a thin paperboard printing machine according to claim 1, characterized in that: An installation plate (4) is placed on the left side of the fixed block (3), and the conveying surface of the installation plate (4) is connected to the first circular roller (8) located on the left side.

3. The feeding device for a thin paperboard printing machine according to claim 2, characterized in that: The highest point of the outer surface of the first roller (8) corresponds to the highest point of the plane of the mounting plate (4).

4. The feeding device for a thin paperboard printing machine according to claim 3, characterized in that: The auxiliary component (2) is installed in the middle of the two fixed blocks (3) on their adjacent sides; the auxiliary component (2) includes a square tube (10), there are two square tubes (10), the two square tubes (10) are respectively fixedly connected to the bottom surface of the two fixed blocks (3), a lifting block (11) is snapped between the adjacent sides of the two square tubes (10), a guide rod (12) is fixedly connected between the bottom wall and the top wall of the square tube (10), each guide rod (12) is slidably connected to the corresponding lifting block (11), a spring (13) is fixedly connected between each lifting block (11) and the top wall of the square tube (10), and a support rod (14) is fixedly connected between the adjacent sides of the two lifting blocks (11).

5. The feeding device for a thin paperboard printing machine according to claim 4, characterized in that: The two springs (13) are respectively connected to the corresponding guide rods (12).

6. The feeding device for a thin paperboard printing machine according to claim 5, characterized in that: The top of the cross-sectional shape of the support rod (14) is semi-circular, and the support rod (14) has a smooth outer surface.

7. The feeding device for a thin paperboard printing machine according to claim 6, characterized in that: The bottom surfaces of the two fixed blocks (3) are fixedly connected to the same support frame (15).

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