Paper knife device

Abstract

The application discloses a paper feeding cutter device which comprises a frame body, a driving device, a pressing assembly, a transmission assembly and a paper separating wheel installed on the frame body, the pressing assembly is used for pressing paper in an elastic manner, the paper separating wheel is arranged adjacent to the pressing assembly, the paper separating wheel is rotatably installed on the frame body, and the paper separating wheel is further installed on an output end of the driving device through the transmission assembly, so that the paper separating wheel rotates under the driving of the driving device, and the paper separating wheel can separate overlapped paper and make the paper pass in a single sheet mode through the rotation of the paper separating wheel. The paper feeding cutter device can effectively separate paper and avoid thin paper stacking, and has the advantages of simple structure.

Description

Technical Field

[0001] This invention relates to the field of packaging box production and printing, and more particularly to a paper feeder device. Background Technology

[0002] In the paper printing industry, automatic paper feeding devices are often used for paper transport, especially paper cutting devices. Paper cutting devices can only transport one sheet of paper at a time, thereby achieving the purpose of separating the paper.

[0003] Existing paper feeder devices such as Figure 1 As shown, the paper feeder device includes a paper feeder adjusting screw 10, a paper feeder fixing screw 20, a horizontal adjusting rod 30, a pressure roller pressure adjusting screw 40, a spring 50, a pressure roller 60, and a paper feeder 70. The horizontal adjusting rod 30 allows for the overall horizontal movement of the paper feeder device. To accommodate different paper thicknesses, the paper feeder adjusting screw 10 can raise or lower the height of the paper feeder 70. Adjusting the distance between the lowest point of the paper feeder 70 and the external paper feed belt ensures that only one sheet of paper passes through at a time, thus achieving the purpose of separating the paper. Simultaneously, the height of the paper feeder 70 can be fixed by the paper feeder fixing screw 20, and the height of the pressure roller 60 can be adjusted by the pressure roller pressure adjusting screw 40, thereby adjusting the appropriate pressure according to the actual situation to ensure stable paper transmission. The spring 50 ensures that the pressure roller 60 is always engaged with the paper feed belt or the paper. While the conventional paper feeder device described above has no major problems with corrugated boxes and cardboard boxes weighing over 200g, it often fails to feed thin paper weighing less than 200g, especially irregularly stacked paper. This often results in two or more sheets being fed at once, which is irregular and uncontrollable, and therefore cannot meet current production needs.

[0004] To solve the above problems, it is necessary to provide a paper feeder device. Summary of the Invention

[0005] The purpose of this invention is to provide a paper feeder device that can effectively separate paper and avoid feeding multiple sheets of thin paper, and it also has the advantage of simple structure.

[0006] To achieve the above objectives, the paper feeder device provided by the present invention includes a frame and a driving device, a pressing assembly, a transmission assembly, and a paper separating wheel mounted on the frame. The pressing assembly is used to elastically press the paper. The paper separating wheel is arranged adjacent to the pressing assembly and is rotatably mounted on the frame. The paper separating wheel is also mounted to the output end of the driving device through the transmission assembly, so that the paper separating wheel rotates under the drive of the driving device. By rotating the paper separating wheel, the paper separating wheel can separate overlapping papers and allow the paper to pass through in single sheets.

[0007] Preferably, the output end of the transmission assembly has a first transmission member, the paper separating wheel extends toward the first transmission member to have a second transmission member, the paper separating wheel and the second transmission member are coaxially arranged, the first transmission member and the second transmission member cooperate with each other to transmit power, the first transmission member operates under the transmission of the transmission assembly and drives the second transmission member to operate.

[0008] Specifically, both the first transmission component and the second transmission component are gears, and the first transmission component and the second transmission component mesh with each other. The first transmission component rotates under the transmission of the transmission assembly and drives the second transmission component to rotate.

[0009] Specifically, the transmission assembly further includes a driving wheel, a driven wheel, and a transmission component. The driven wheel is arranged adjacent to the paper separating wheel. The first transmission component is coaxially arranged with the driven wheel. The transmission component is disposed between the driving wheel and the driven wheel. The driving wheel is installed at the output end of the driving device. The driving wheel rotates under the drive of the driving device and drives the driven wheel to rotate through the transmission component.

[0010] Specifically, the transmission assembly further includes a guide wheel and a limiting wheel, both of which are rotatably mounted on the frame. The guide wheel is located between the driving wheel and the driven wheel, and the limiting wheel is located on one side of the driven wheel.

[0011] Specifically, the transmission component is arranged along the height direction of the frame under the guidance of the guide wheel. The frame has a hollow cavity, and the transmission component is installed in the cavity. An elongated hole is provided on the outer side of the frame corresponding to the transmission component. The elongated hole communicates with the cavity. The transmission component can contact the stacked papers through the elongated hole, and the paper is driven to move towards the bottom of the frame by the transmission of the transmission component.

[0012] Specifically, the bottom of the frame has a through hole communicating with the cavity, the paper separating wheel is rotatably installed in the cavity, and one side of the paper separating wheel extends out of the cavity through the through hole.

[0013] Specifically, the paper feeding device further includes a baffle plate, which is located at the elongated hole of the frame and is used to block the gap between the transmission assembly and the paper separating wheel.

[0014] Specifically, the baffle is a sheet-like structure that extends inward from the outer side of the frame and is inclined.

[0015] Preferably, the pressing assembly includes a fixed frame, a lifting frame, a pressure regulating assembly, an elastic element, and a pressing wheel assembly. The fixed frame is slidably disposed on the fixed frame via a guide rod. The elastic element is sleeved on the guide rod and is elastically disposed between the fixed frame and the lifting frame. The pressure regulating assembly is used to limit the maximum sliding stroke of the lifting frame relative to the fixed frame to regulate the pressure. The pressing wheel assembly is installed at the bottom of the lifting frame.

[0016] Compared with the prior art, the paper feeding device of the present invention combines a frame, a driving device, a pressing assembly, a transmission assembly, and a paper separating wheel. The paper separating wheel is arranged adjacent to the pressing assembly. The paper separating wheel is used to separate overlapping papers, and the pressing assembly is used to elastically press the paper. The elastic pressing of the pressing assembly can guide the paper, and appropriate pressure can ensure stable paper transmission. The paper separating wheel is rotatably mounted on the frame. The paper separating wheel is also mounted on the output end of the driving device through the transmission assembly, so that the paper separating wheel rotates under the drive of the driving device. That is, the transmission assembly is mounted on the output end of the driving device, and the paper separating wheel is mounted on the output end of the transmission assembly. The transmission of the transmission assembly can make the paper separating wheel rotate under the drive of the driving device. Since the paper separating wheel needs to contact the paper at the bottom, the paper separating wheel... The setting must be located at the bottom of the frame, so the transmission component can form an intermediate connecting component. The drive device can adjust its position according to the actual situation, making the position setting between each component more compact and reasonable. The rotation of the paper separating wheel can separate overlapping papers and allow the paper to pass through as a single sheet. The rotation direction of the paper separating wheel is opposite to the forward direction of the paper. Adjusting the distance between the paper separating wheel and the external conveyor component, the distance can only allow one sheet of paper to pass through. In this way, the paper separating wheel will have a "reverse resistance" and "scraping" behavior on stacked and excess paper, so that the stacked paper is stopped in place, and the target paper can continue to pass through, avoiding multiple sheets in each feed, especially for some thin paper with a small thickness. This scraping setting can ensure that only one sheet of paper can pass through at a time. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a paper feeder device in the prior art.

[0018] Figure 2 This is a perspective view of the paper feeder device of the present invention.

[0019] Figure 3 This is a side view of the paper feeder device of the present invention.

[0020] Figure 4 This is a front view of the paper feeder device of the present invention.

[0021] Figure 5 This is a schematic diagram of the internal structure of the paper feeder device of the present invention.

[0022] Figure 6 This is a schematic diagram of the paper feeder device of the present invention. Detailed Implementation

[0023] Please see Figures 2 to 6 This invention demonstrates that the paper feeder device 100 can be used for feeding stacked thin paper and stacked thick paper. The specific structure of the paper feeder device 100 includes a frame 1, a drive unit 2, a pressing assembly 3, a transmission assembly 4, and a paper separating wheel 5. The drive unit 2, pressing assembly 3, transmission assembly 4, and paper separating wheel 5 are mounted on the frame 1. The paper separating wheel 5 is arranged adjacent to the pressing assembly 3, located to the right of the pressing assembly 3. The paper separating wheel 5 is used to separate overlapping sheets 200. The pressing assembly 3 is used to elastically press the sheets 200 together. The elastic pressing of the pressing assembly 3 guides the sheets 200 (the direction of paper feeding is as follows). Figure 6 (In the direction indicated by the middle arrow C), appropriate pressure ensures stable paper transfer. The paper separating wheel 5 is rotatably mounted on the frame 1 at the bottom. The transmission assembly 4 is mounted above the paper separating wheel 5, and the drive device 2 is mounted above the transmission assembly 4. The paper separating wheel 5, transmission assembly 4, and drive device 2 are arranged sequentially from bottom to top along the height of the frame 1. The paper separating wheel 5, transmission assembly 4, and drive device 2 are on the same straight line. The paper separating wheel 5 is also mounted to the output end of the drive device 2 via the transmission assembly 4, so that the paper separating wheel 5 rotates under the drive of the drive device 2. That is, the transmission assembly 4 is mounted at the output end of the drive device 2, and the paper separating wheel 5 is mounted at the output end of the transmission assembly 4. The transmission of the transmission assembly 4 allows the paper separating wheel 5 to rotate under the drive of the drive device 2. Since the paper separating wheel 5 needs to contact the paper 200 at the bottom, the position of the paper separating wheel 5 must be carefully considered. Located at the bottom of the frame 1, the transmission component 4 forms an intermediate connecting component, allowing the drive device 2 to adjust its position according to actual conditions. This results in a more compact and rational arrangement of the components. The rotation of the paper-splitting roller 5 separates overlapping sheets of paper 200, allowing each sheet to pass through individually. The rotation direction of the paper-splitting roller 5 is opposite to the forward direction of the paper 200. Adjusting the distance between the paper-splitting roller 5 and the external conveyor 300 allows only one sheet of paper 200 to pass through. This creates a "reverse resistance" and "splitting" effect on stacked and excess paper 200, keeping the stacked paper 200 in place while allowing the lowest-end target paper 200 to continue passing through. This avoids multiple sheets being fed at once, especially for thinner papers. This splitting mechanism ensures that only one sheet passes through at a time. Preferably, the drive device 2 is a transmission source such as a conventional motor, stepper motor, or servo motor, and is not limited to these.

[0024] More specifically, as follows:

[0025] Please see Figure 5 The output end of the transmission assembly 4 has a first transmission member 44. The paper separating wheel 5 extends towards the first transmission member 44 and has a second transmission member 51. The paper separating wheel 5 and the second transmission member 51 are coaxially arranged. The rotation of the second transmission member 51 will drive the rotation of the paper separating wheel 5. The first transmission member 44 and the second transmission member 51 cooperate with each other to transmit power. The first transmission member 44 rotates under the transmission of the transmission assembly 4 and drives the second transmission member 51 to rotate. Preferably, both the first transmission member 44 and the second transmission member 51 are gears. The first transmission member 44 and the second transmission member 51 mesh with each other. The first transmission member 44 rotates under the transmission of the transmission assembly 4 and drives the second transmission member 51 to rotate. Of course, the manufacturer can adjust the specific structure of the device or replace it with other transmission structures as needed, so it is not limited to this.

[0026] Please see Figure 5 Specifically, the transmission assembly 4 also includes a driving wheel 41, a driven wheel 42, a transmission component 43, a guide wheel 45, and a limiting wheel 46. There are at least two guide wheels 45 and limiting wheels 46, but they can also be adjusted to one, and the number is not limited. The driving wheel 41 is located above the driven wheel 42. The guide wheel 45 and the limiting wheel 46 are located between the driving wheel 41 and the driven wheel 42. The driven wheel 42 is arranged adjacent to the paper separating wheel 5 and is located above the paper separating wheel 5. The first transmission component 44 is coaxially arranged with the driven wheel 42, and the driven wheel 42 rotates synchronously with the first transmission component 44. The transmission component 43 is arranged between the driving wheel 41 and the driven wheel 42. The transmission component 43 is a transmission belt. The driving wheel 41 is installed at the output end of the drive device 2. The driving wheel 41 rotates under the drive of the drive device 2 and drives the driven wheel 42 to rotate through the transmission component 43. More specifically, both the guide wheel 45 and the limiting wheel 46 are rotatably mounted on the frame 1. The guide wheel 45 is located between the driving wheel 41 and the driven wheel 42, and the limiting wheel 46 is located on one side of the driven wheel 42. Preferably, the limiting wheel 46 is located on the right side of the driven wheel 42, so that the transmission component 43 is arranged along the height direction of the frame 1 on one side of the outer side of the frame 1, which facilitates the descent of the stacked paper 200.

[0027] Please see Figures 2 to 6The transmission component 43 is arranged along the height direction of the frame 1 under the guidance of the guide wheel 45. The frame 1 is generally L-shaped and includes a vertical frame 13 and a horizontal frame 14. The vertical frame 13 is located to the right of the horizontal frame 14 and is arranged along the height direction of the frame 1. The horizontal frame 14 is arranged along the left and right direction of the frame 1. The vertical frame 13 of the frame 1 has a hollow cavity 131, and the horizontal frame 14 of the frame 1 has a hollow mounting cavity. The transmission component 4 is installed in the cavity 131. An elongated hole 11 is provided on the outer side of the frame 1 corresponding to the transmission component 43. The elongated hole 11 is located on the outward side of the vertical frame 13 and is a rectangular hole arranged along the height direction of the frame 1. The elongated hole 11 communicates with the cavity 131. The transmission component 43 can contact the stacked paper 200 through the elongated hole 11. The transmission component 43 drives the paper 200 to move towards the bottom of the frame 1. Since the paper 200 is often irregularly stacked on one side of the paper feeder 100 on the production line, a vibration device is traditionally installed on the conveyor belt on one side of the paper feeder 100. The vibration of the vibration device causes the irregular paper 200 to fall faster under vibration, thereby replacing the paper 200 at the bottom. The vertical frame 13 of the present invention has an elongated hole 11 on the outward side. The transmission component 43 of the transmission assembly 4 conveys downward (e.g. Figure 6 (In the direction indicated by the middle arrow D), the stacked paper 200 contacts the downward-moving transmission component 43 through the elongated hole 11. Driven by the transmission component 43, the paper 200 moves downward, accelerating its descent and allowing it to replace the paper 200 at the bottom. This eliminates the need for a traditional vibration device, meeting production requirements while reducing costs. More specifically, the paper feeder device 100 of this invention also includes a baffle 6, located at the elongated hole 11 of the frame 1. The baffle 6 blocks the gap between the transmission component 4 and the paper separating wheel 5, preventing the paper 200 from getting stuck and ensuring smooth operation of the device. Preferably, the baffle 6 is a sheet-like structure extending inward from the outer side of the frame 1 and arranged at an angle; however, it can also be an arc-shaped sheet.

[0028] Please see Figures 2 to 6 The bottom of the frame 1 has a through hole 12 communicating with the cavity 131. The paper separating wheel 5 is rotatably installed in the cavity 131. One side of the paper separating wheel 5 extends out of the cavity 131 through the through hole 12. The partial extension of the paper separating wheel 5 out of the cavity 131 allows it to contact the external paper 200.

[0029] Please see Figure 5The pressing assembly 3 includes a fixed frame 31, a lifting frame 33, a pressure adjusting assembly 34, an elastic element 35, and a pressing wheel assembly 36. The fixed frame 31, the lifting frame 33, the pressure adjusting assembly 34, and the elastic element 35 are installed inside the transverse frame 14. The pressing wheel assembly 36 extends out of the transverse frame 14. The fixed frame 31 is slidably disposed on the fixed frame 31 via a guide rod 32. The elastic element 35 is sleeved on the guide rod 32 and is elastically disposed between the fixed frame 31 and the lifting frame 33. The pressure adjusting assembly 34 is used to limit the maximum sliding stroke of the lifting frame 33 relative to the fixed frame 31 to adjust the pressure. The pressing wheel assembly 36 is installed at the bottom of the lifting frame 33.

[0030] Please see Figure 5 The paper feeder device 100 of the present invention further includes a paper feeder adjusting screw 7, a paper feeder fixing screw 8, and a horizontal adjusting rod 9. The paper feeder fixing screw 8 and the paper feeder adjusting screw 7 are used to adjust the position of the paper separating wheel 5, and the horizontal adjusting rod 9 is installed on the vertical frame 13.

[0031] In summary, please refer to Figures 2 to 6 The following is a detailed description of the usage process of the paper feeder device 100 of the present invention:

[0032] The stacked papers 200 are located on one side of the paper feeder 100 (specifically as shown in the figure). Figure 6 As shown), the transmission assembly 4 is installed at the output end of the drive device 2, and the paper separating wheel 5 is installed at the output end of the transmission assembly 4. The transmission assembly 4 drives the paper separating wheel 5 to rotate under the drive of the drive device 2. The rotation of the paper separating wheel 5 causes it to separate overlapping sheets of paper 200, allowing the sheets to pass through individually. The rotation direction of the paper separating wheel 5 is opposite to the forward direction of the paper 200 (as shown in the diagram). Figure 6 The direction indicated by the middle arrow A is the direction of rotation of the paper separating roller 5. Figure 6 The direction indicated by the middle arrow B is the direction in which the paper moves forward at 200mm. Figure 6 (In the direction indicated by the middle arrow C), adjust the distance between the paper separating roller 5 and the external conveyor, such as a conveyor belt. The distance is such that only one sheet of paper 200 can pass through. In this way, the paper separating roller 5 will have a "reverse resistance" and "scraping" behavior on the stacked and excess paper 200, so that the stacked paper 200 is kept in place, while the target paper 200 can continue to pass through, thereby achieving the purpose of separating the paper 200.

[0033] By combining the frame 1, drive device 2, pressing assembly 3, transmission assembly 4, and paper separating wheel 5, the paper separating wheel 5 is arranged adjacent to the pressing assembly 3. The paper separating wheel 5 is used to separate overlapping sheets of paper 200, and the pressing assembly 3 is used to elastically press the sheets of paper 200. The elastic pressing of the pressing assembly 3 can guide the sheets of paper 200, and appropriate pressure can ensure stable transmission of the sheets of paper 200. The paper separating wheel 5 is rotatably mounted on the frame 1. The paper separating wheel 5 is also mounted on the output end of the drive device 2 through the transmission assembly 4, so that the paper separating wheel 5 rotates under the drive of the drive device 2. That is, the transmission assembly 4 is mounted on the output end of the drive device 2, and the paper separating wheel 5 is mounted on the output end of the transmission assembly 4. The transmission of the transmission assembly 4 can make the paper separating wheel 5 rotate under the drive of the drive device 2. Since the paper separating wheel 5 needs to contact the sheets of paper 200 at the bottom, the paper separating wheel 5 is set with... The position must be located at the bottom of the frame 1, so the transmission component 4 can form an intermediate connecting component. The drive device 2 can adjust its position according to the actual situation, so that the position setting between each component is more compact and more reasonable. By rotating the paper separating wheel 5, the paper separating wheel 5 can separate the overlapping paper 200 and make the paper 200 pass through as a single sheet. The rotation direction of the paper separating wheel 5 is opposite to the forward direction of the paper 200. Adjust the distance between the paper separating wheel 5 and the external conveyor, and the distance can only allow one sheet of paper 200 to pass through. In this way, the paper separating wheel 5 will have a "reverse resistance" and "scraping" behavior on the stacked and excess paper 200, so that the stacked paper 200 is stopped in place, and the target paper 200 can continue to pass through, avoiding the situation of multiple sheets in each feed, especially for some thin paper with a small thickness. This scraping setting can ensure that only one sheet of paper can pass through at a time.

[0034] The above-disclosed examples are merely preferred embodiments of the present invention and should not be construed as limiting the scope of the present invention. Therefore, any equivalent variations made in accordance with the claims of the present invention shall still fall within the scope of the present invention.

Claims

1. A paper-feeding knife device, characterized in that, It includes a frame and a drive device, a pressing assembly, a transmission assembly, a paper separating wheel, and a baffle mounted on the frame. The pressing assembly is used to elastically press the paper. The paper separating wheel is disposed adjacent to the pressing assembly and is rotatably mounted on the frame. The paper separating wheel is also mounted to the output end of the drive device via the transmission assembly, so that the paper separating wheel rotates under the drive device. The rotation of the paper separating wheel causes it to separate overlapping papers and allow the papers to pass through in single sheets. The transmission assembly enables the paper separating wheel to rotate under the drive device. The output end of the transmission assembly has a first transmission member. The paper roller extends towards the first transmission member and has a second transmission member. The paper separating roller is coaxially arranged with the second transmission member. The first transmission member and the second transmission member cooperate with each other to transmit power. The first transmission member operates under the transmission of the transmission assembly and drives the second transmission member to operate. The transmission assembly also includes a driving wheel, a driven wheel, and a transmission member. The driven wheel is arranged adjacent to the paper separating roller. The first transmission member is coaxially arranged with the driven wheel. The transmission member is arranged between the driving wheel and the driven wheel. The driving wheel is installed at the output end of the drive device. The driving wheel rotates under the drive of the drive device and drives the driven wheel to rotate through the transmission member. The transmission component is arranged along the height direction of the frame. The frame has a hollow cavity. The transmission component is installed in the cavity. An elongated hole is provided on the outer side of the frame corresponding to the transmission component. The elongated hole communicates with the cavity. The transmission component can contact the stacked papers through the elongated hole, and the transmission component drives the papers to move towards the bottom of the frame. A baffle is provided at the elongated hole of the frame. The baffle is used to cover the gap between the transmission component and the paper separating roller.

2. The paper feeder device as described in claim 1, characterized in that, Both the first transmission component and the second transmission component are gears, and the first transmission component and the second transmission component mesh with each other. The first transmission component rotates under the transmission of the transmission assembly and drives the second transmission component to rotate.

3. The paper feeder device as described in claim 1, characterized in that, The transmission assembly also includes a guide wheel and a limit wheel. Both the guide wheel and the limit wheel are rotatably mounted on the frame. The guide wheel is located between the driving wheel and the driven wheel, and the limit wheel is located on one side of the driven wheel.

4. The paper feeder device as described in claim 1, characterized in that, The bottom of the frame has a through hole communicating with the cavity, and the paper separating wheel is rotatably installed in the cavity, with one side of the paper separating wheel extending out of the cavity through the through hole.

5. The paper feeder device as described in claim 1, characterized in that, The baffle is a sheet-like structure that extends inward from the outer side of the frame and is inclined.

6. The paper feeder device as described in claim 1, characterized in that, The pressing assembly includes a fixed frame, a lifting frame, a pressure regulating assembly, an elastic element, and a pressing wheel assembly. The fixed frame is slidably mounted on the fixed frame via a guide rod. The elastic element is sleeved on the guide rod and is elastically positioned between the fixed frame and the lifting frame. The pressure regulating assembly is used to limit the maximum sliding stroke of the lifting frame relative to the fixed frame to adjust the pressure. The pressing wheel assembly is installed at the bottom of the lifting frame.

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