A processing die for a press sheet

Abstract

The utility model provides a kind of processing mould of paper-pressing steel sheet, including upper die holder and lower die holder;Die one side is equipped with conveying mechanism, steel sheet is placed on conveying mechanism and is located between upper die holder and lower die holder, to move from die one side to die other side by conveying mechanism;Upper die holder is equipped with upper punch, lower die holder is equipped with lower punch in the position corresponding with upper punch, the lower end of upper punch is equipped with multiple upper pressing blocks for being contacted with the upper surface of steel sheet, the upper end of lower punch is equipped with multiple lower pressing blocks for being contacted with the lower surface of steel sheet, to press out multiple recesses on the upper surface and lower surface of steel sheet;Upper die holder and lower die holder are equipped with position corresponding upper punch and forming block respectively behind upper punch and lower punch according to the movement direction of steel sheet, for stamping steel sheet with recess to form paper-pressing steel sheet.The utility model can improve the stress concentration situation when steel sheet is stamped, improve the flatness of paper-pressing steel sheet, ensure subsequent printing quality.

Description

Technical Field

[0001] This utility model relates to the field of printer component processing technology, and in particular to a processing mold for a paper pressing steel sheet. Background Technology

[0002] With the continuous advancement of technology and the increasing improvement of people's quality of life, handheld color printers, as a convenient and efficient printing device, have been widely used in many fields.

[0003] For handheld color printers, paper flatness is crucial for ensuring clear and uniform print quality. The pressure plate, as the component that directly contacts and applies pressure to keep the paper flat, must possess extremely high flatness. If the pressure plate warps or deforms during manufacturing or use, it will be unable to effectively hold the paper down, causing it to shift or wrinkle during printing. This severely impacts print quality, resulting in blurry text, color deviations, and other defects.

[0004] In traditional paper-pressing sheet manufacturing processes, direct stamping is typically used. However, during the stamping process, the stress distribution within the sheet is extremely uneven. Because the stamping force is concentrated in specific areas, stress concentration occurs in those areas. After stamping, the internal stress cannot be evenly released, leading to warping and deformation of the sheet. This not only reduces the flatness of the paper-pressing sheet, affecting its paper-pressing effect, but also shortens its lifespan and increases printer maintenance costs. Utility Model Content

[0005] The purpose of this invention is to provide a processing mold for a paper pressing steel sheet, which can prevent the paper pressing steel sheet from warping and deforming after stamping, thereby improving the subsequent printing quality.

[0006] To achieve the above objectives, the solution of this utility model is as follows: A die for processing paper pressing steel sheets includes an upper die base and a lower die base; A conveying mechanism is provided on one side of the mold. The steel sheet is placed on the conveying mechanism and located between the upper mold base and the lower mold base so that it can move from one side of the mold to the other side of the mold through the conveying mechanism. The upper die base is provided with an upper pressure head, and the lower die base is provided with a lower pressure head at a position corresponding to the upper pressure head. The lower end of the upper pressure head is provided with multiple upper pressure blocks for contacting the upper surface of the steel sheet, and the upper end of the lower pressure head is provided with multiple lower pressure blocks for contacting the lower surface of the steel sheet, so as to press out multiple concave holes on the upper and lower surfaces of the steel sheet. The upper and lower die bases are respectively equipped with upper punches and forming blocks behind the upper and lower pressure heads according to the direction of movement of the steel sheet, which are used to punch the steel sheet with concave holes to form a paper pressing steel sheet.

[0007] In a preferred embodiment, both the upper and lower pressure blocks are in the shape of a regular square frustum.

[0008] In a preferred embodiment, the base side length of the regular square frustum is between 0.7 and 1.0 mm, the top side length is between 0.5 and 0.7 mm, and the height is between 0.5 and 0.7 mm.

[0009] In a preferred embodiment, a leveling head is also included, which is mounted on the upper die base and positioned behind the upper punch in accordance with the movement direction of the steel sheet.

[0010] In a preferred embodiment, a stripping punch is also included. The stripping punch is mounted on the upper die base and positioned behind the leveling head in accordance with the movement direction of the steel sheet. A material discharge channel is provided on the lower die base at the position corresponding to the stripping punch.

[0011] In a preferred embodiment, the conveying mechanism is a conveyor belt.

[0012] After adopting the above solution, the beneficial effects of this utility model are as follows: This invention uses multiple upper pressing blocks at the lower end of the upper pressing head and multiple lower pressing blocks at the upper end of the lower pressing head to simultaneously press multiple concave holes on the upper and lower surfaces of the steel sheet. Then, the steel sheet with concave holes is punched by the upper punch and forming block to form a paper-pressing steel sheet. This effectively avoids stress concentration during the punching process, releases the ductility of the paper-pressing steel sheet itself, and makes the paper-pressing steel sheet less prone to warping and deformation, maintaining a high degree of flatness. This allows it to better press the paper during subsequent printing and ensure the quality of subsequent printing. Attached Figure Description

[0013] Figure 1 This is a schematic diagram illustrating the processing of the steel sheet during the closing of the upper and lower mold bases in this embodiment of the present invention. Figure 2 This is a schematic diagram of the upper and lower mold bases during mold opening in an embodiment of this utility model; Figure 3 This is a schematic diagram of the upper pressure head (lower pressure head) with an upper pressure block (lower pressure block) in an embodiment of this utility model; Figure 4 This is a front view of the upper pressure head in an embodiment of this utility model; Figure 5 This is a front view of the lower pressure head in an embodiment of this utility model; Figure 6 This is a schematic diagram showing that when the upper mold base and the lower mold base are closed, concave holes are pressed out on the upper and lower surfaces of the steel sheet in an embodiment of this utility model; Figure 7 This is a schematic diagram of a steel sheet with a concave hole in an embodiment of this utility model.

[0014] Label Explanation: 1. Upper mold base; 2. Lower mold base; 21. Material feeding channel; 3. Steel sheet; 31. Concave hole; 4. Upper pressure head; 41. Upper pressure block; 5. Lower pressure head; 51. Lower pressure block; 61. Upper punch; 62. Forming block; 63. Buffer return spring; 7. Leveling the pressure head; 8. Stripping punch; 9. Conveyor belt; 10. Paper pressing steel sheet. Detailed Implementation

[0015] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0016] This embodiment provides a processing mold for a paper-pressing steel sheet, such as... Figures 1 to 7 As shown, it includes an upper mold base 1 and a lower mold base 2; A conveying mechanism is provided on one side of the mold. The steel sheet 3 is placed on the conveying mechanism and located between the upper mold base 1 and the lower mold base 2, so that it can move from one side of the mold to the other side of the mold through the conveying mechanism. The upper mold base 1 is provided with an upper pressure head 4, and the lower mold base 2 is provided with a lower pressure head 5 at a position corresponding to the upper pressure head 4. The lower end of the upper pressure head 4 is provided with a plurality of upper pressure blocks 41 for contacting the upper surface of the steel sheet 3, and the upper end of the lower pressure head 5 is provided with a plurality of lower pressure blocks 51 for contacting the lower surface of the steel sheet 3, so as to press out a plurality of concave holes 31 on the upper and lower surfaces of the steel sheet 3. The upper die holder 1 and the lower die holder 2 are respectively provided with an upper punch 61 and a forming block 62 behind the upper press head 4 and the lower press head 5, which are positioned in corresponding positions according to the movement direction of the steel sheet 3. They are used to press the steel sheet 3 with concave holes 31 to form a paper pressing steel sheet 10.

[0017] Specifically, in the traditional paper pressing steel sheet stamping process, due to the concentrated effect of the stamping force, the internal stress distribution of the steel sheet is extremely uneven, which easily leads to stress concentration, causing the steel sheet to warp and deform after stamping, affecting its flatness.

[0018] In this embodiment, multiple upper pressing blocks 41 at the lower end of the upper pressing head 4 and multiple lower pressing blocks 51 at the upper end of the lower pressing head 5 are used to simultaneously press out multiple recessed holes 31 on the upper and lower surfaces of the steel sheet 3, such as... Figure 6 and Figure 7As shown, the steel sheet 3 with concave holes 31 is then punched by the upper punch 61 and the forming block 62 to form the paper pressing steel sheet 10. This can effectively avoid stress concentration during the punching process, release the ductility of the paper pressing steel sheet 10 itself, and make the paper pressing steel sheet 10 less prone to warping and deformation. It can always maintain a high degree of flatness, thereby better pressing the paper in the subsequent printing process and ensuring the printing quality.

[0019] In addition, the conveying mechanism on one side of the mold can automatically transport the steel sheet 3 from one side of the mold to the other side. Multiple upper pressing blocks 41 at the lower end of the upper pressing head 4 and multiple lower pressing blocks 51 at the upper end of the lower pressing head 5 first press out concave holes 31 on the steel sheet 3. Then, the upper punch 61 and the forming block 62 immediately stamp and form the steel sheet 3 with concave holes 31. The entire processing flow is coherent and compact, which improves the overall production efficiency.

[0020] In this embodiment, the upper pressure block 41 and the lower pressure block 51 are evenly distributed, but not limited to this. This arrangement can ensure the uniform distribution of stress on the steel sheet 3 and improve the processing quality of the subsequent paper pressing steel sheet 10.

[0021] It should be noted that this embodiment does not limit the shape and quantity of the upper punch 61 and the forming block 62. The accompanying drawings only show the relative positional relationship between the upper punch 61 and the forming block 62 and other components on the upper mold base 1 and the lower mold base 2. Operators can adjust the shape and quantity of the upper punch 61 and the forming block 62 according to the actual situation to meet the needs of paper pressing steel sheets 10 of different shapes and sizes.

[0022] like Figures 3 to 5 As shown, in this embodiment, the upper pressure block 41 and the lower pressure block 51 are both in the shape of a regular square frustum, which makes the pressure transmission process more stable and uniform. The upper pressure head 4 and the upper pressure block 41, as well as the lower pressure head 5 and the lower pressure block 51, are all integrally formed, which helps to improve the service life. In addition, the hardness of the material used to make the upper pressure head 4 and the upper pressure block 41, as well as the lower pressure head 5 and the lower pressure block 51, should be greater than the hardness of the steel sheet 3 to ensure smooth processing.

[0023] Furthermore, in this embodiment, the base side length of the regular square truncated pyramid is between 0.7 and 1.0 mm, the top side length is between 0.5 and 0.7 mm, and the height is between 0.5 and 0.7 mm. This satisfies the requirements for stress distribution adjustment of the paper-pressing steel sheet 10 during subsequent stamping and forming, without affecting the overall strength of the paper-pressing steel sheet 10 due to excessively large openings. Of course, in other embodiments, the dimensions of the regular square truncated pyramid can be adjusted according to actual needs.

[0024] like Figure 1 and Figure 2As shown, this embodiment also includes a leveling head 7, which is disposed on the upper die base 1 and is positioned behind the upper punch 61 in accordance with the movement direction of the steel sheet 3.

[0025] Specifically, after the upper punch 61 and the forming block 62 press the steel sheet 3 with the concave hole 31 to form the paper pressing steel sheet 10, the leveling press head 7 can perform a secondary leveling process on the paper pressing steel sheet 10, so that the paper pressing steel sheet 10 maintains a sufficiently high flatness, thereby better pressing the paper in the subsequent printing process and ensuring print quality. Of course, a buffer return spring 63 can also be set below the forming block 62 to improve the forming quality.

[0026] like Figure 1 and Figure 2 As shown, this embodiment also includes a stripping punch 8, which is disposed on the upper die base 1. The stripping punch 8 is disposed behind the leveling head 7 in accordance with the movement direction of the steel sheet 3. The lower die base 2 has a material discharge channel 21 at the position corresponding to the stripping punch 8.

[0027] Specifically, the upper punch 61 and the forming block 62 press the steel sheet 3 with concave holes 31 to form a paper-pressing steel sheet 10. That is, a portion of the steel sheet 3 is formed into a paper-pressing steel sheet 10 through punching, and at this time, the edge of the paper-pressing steel sheet 10 is still connected to the steel sheet 3. Therefore, in this embodiment, the downward movement of the stripping punch 8 allows the paper-pressing steel sheet 10 with concave holes 31 and secondary leveling treatment to fall off the steel sheet 3 into the unloading channel 21 of the lower die base 2, thereby completing the unloading process. The structure is simple.

[0028] like Figure 1 As shown, the conveying mechanism in this embodiment is a conveyor belt 9. Specifically, the conveyor belt 9 can be connected to a servo motor drive (not shown in the figure), so that the steel sheet 3 stops moving when the upper mold base 1 and the lower mold base 2 are closed, and is conveyed when the upper mold base 1 and the lower mold base 2 are open. The structure is simple and easy to set up, but it is not limited to this.

[0029] The directional terms used in this specification are defined relative to the structures shown in the accompanying drawings. They are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0030] The above description is only a preferred embodiment of this utility model and is not a limitation on the design of this case. All equivalent changes made based on the key design of this case shall fall within the protection scope of this case.

Claims

1. A processing mold for a paper-pressing steel sheet, characterized in that: Includes upper mold base and lower mold base; A conveying mechanism is provided on one side of the mold. The steel sheet is placed on the conveying mechanism and located between the upper mold base and the lower mold base so that it can move from one side of the mold to the other side of the mold through the conveying mechanism. The upper die base is provided with an upper pressure head, and the lower die base is provided with a lower pressure head at a position corresponding to the upper pressure head. The lower end of the upper pressure head is provided with multiple upper pressure blocks for contacting the upper surface of the steel sheet, and the upper end of the lower pressure head is provided with multiple lower pressure blocks for contacting the lower surface of the steel sheet, so as to press out multiple concave holes on the upper and lower surfaces of the steel sheet. The upper and lower die bases are respectively equipped with upper punches and forming blocks behind the upper and lower pressure heads according to the direction of movement of the steel sheet. These are used to punch the steel sheet with concave holes to form a paper pressing steel sheet.

2. The processing mold for a paper-pressing steel sheet as described in claim 1, characterized in that: Both the upper and lower pressure blocks are in the shape of a regular square frustum.

3. The processing mold for a paper-pressing steel sheet as described in claim 2, characterized in that: The base side length of the regular square truncated pyramid is between 0.7 and 1.0 mm, the top side length is between 0.5 and 0.7 mm, and the height is between 0.5 and 0.7 mm.

4. The processing mold for a paper-pressing steel sheet as described in claim 1, characterized in that: It also includes a leveling head, which is mounted on the upper die base and positioned behind the upper punch in accordance with the movement direction of the steel sheet.

5. The processing mold for a paper-pressing steel sheet as described in claim 4, characterized in that: It also includes a stripping punch, which is set on the upper die base and positioned behind the leveling head in accordance with the movement direction of the steel sheet. The lower die base has a material feeding channel at the position corresponding to the stripping punch.

6. The processing mold for a paper-pressing steel sheet as described in claim 1, characterized in that: The conveying mechanism is a conveyor belt.

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