Color-printed carton production device and production method

Abstract

The present invention belongs to the field of color-printed cardboard production, and in particular relates to a color-printed cardboard production device and method. The device comprises a bracket, rollers, and a motor, wherein the bracket is equipped with a plurality of rollers that are driven by the motor to transport the color-printed cardboard. The rollers have a structure that effectively adsorbs the color-printed cardboard by only the portion that contacts the cardboard, without wasting suction force or generating noise. In the present invention, the negative pressure zone formed by the adsorption shell on the roller is autonomously adjusted to match the area of ​​the cardboard under the action of the movement of the cardboard on it, so that only the adsorption shell that supports the cardboard effectively adsorbs the cardboard under negative pressure, and the cardboard is effectively transported close to the rollers, avoiding wasted suction force. At the same time, the negative pressure zone on the roller that effectively adsorbs the cardboard changes autonomously as the size of the cardboard changes, and the adjustment range of the negative pressure zone is not affected by the device structure and is relatively large.

Description

Technical Field

[0001] The present invention belongs to the field of color-printed carton production, and in particular relates to a color-printed carton production device and a production method. Background Art

[0002] The production process of color-printed cartons includes a paper feed mechanism, a printing mechanism, and a die-cutting mechanism. The paper feed mechanism generally uses negative pressure to press the cardboard against the conveyor roller to ensure the conveying accuracy of the conveyor roller. The suction holes are generally densely distributed on the platform. During the conveying process, due to the different sizes of the cardboard, the cardboard cannot cover all the suction holes on the platform. As a result, some suction holes on the platform are not involved in the suction of the cardboard, resulting in wasted suction force. Patent CN 114873323 A discloses a conveying mechanism with an adjustable negative pressure zone to solve the problem of wasted suction force, but there are still some areas for optimization:

[0003] 1. The cardboard is on the conveyor wheel, the adsorption hole is on the platform, the conveyor wheel is slightly higher than the platform, and there is a gap between the cardboard and the platform. A large negative pressure suction force is required to make the cardboard stick to the conveyor wheel.

[0004] 2. Because there is a gap between the cardboard and the platform, air will enter from both sides of the platform due to negative pressure, generating loud noise and causing noise pollution.

[0005] 3. Although the range of the negative pressure zone is adjustable, the equipment structure limits the adjustment range of the negative pressure zone, and the adjustment degree is limited.

[0006] The present invention designs a color-printed carton production device and a production method to solve the above problems. Summary of the Invention

[0007] In order to solve the above-mentioned defects in the prior art, the present invention discloses a color-printed carton production device and production method, which are achieved by adopting the following technical solutions.

[0008] A color-printed carton production device and production method includes a bracket, rollers, and a motor, wherein the bracket is equipped with a plurality of rollers driven by the motor to transport color-printed carton sheets. The rollers have a structure that effectively absorbs the color-printed carton board by only making the parts that contact the color-printed carton sheets without wasting suction force and generating noise.

[0009] As a further improvement of the present technology, the rotating columns at both ends of the roller are rotatably matched with the circular grooves on the bracket; a gear A is installed on one rotating column of the roller, and the gears A on any two adjacent rotating columns are simultaneously engaged with the gear B on the bracket; the gear A corresponding to a roller is engaged with the gear C on the output shaft of the motor.

[0010] As a further improvement of the present technology, the cylindrical surface of the roller is densely distributed with several groups of slide grooves along its axial direction, and each group of slide grooves is composed of circumferentially dense slide grooves; the suction grooves on the side walls of each group of slide grooves are connected to the annular grooves B in the roller; a ring-shaped suction pipe B is installed in the hollow rotating column at one end of the roller, which connects all the annular grooves B with the suction main pipe B on the bracket; the bottom of each group of slide grooves is connected to the annular groove A in the roller; an air supply pipe B is installed in the middle of the suction pipe B, which connects all the annular grooves A with the air supply main pipe A on the bracket; the main pipe A is connected to the negative pressure pump on the bracket, and the main pipe B is connected to the air supply pump on the bracket.

[0011] As a further improvement of the present technology, the end of the intake pipe B is sealed and rotated with an intake pipe A connected to the main pipe B, and the end of the air supply pipe B is sealed and rotated with an air supply pipe A connected to the main pipe A.

[0012] As a further improvement of the present technology, an air suction pipe C with an open outer end slides in a radially sealed manner along the roller in the slide groove, and the air suction port on the side wall of the air suction pipe C cooperates with the air suction groove on the side wall of the corresponding slide groove; the open end of the air suction pipe C is installed with an adsorption shell connected to it through an elastic connecting tube; the end face of the adsorption shell that cooperates with the color-printed carton board is densely covered with air suction holes.

[0013] As a further improvement of the present technology, the suction hole end surface of the adsorption shell is provided with a silica gel layer that matches the color-printed carton board material.

[0014] As a further improvement of the present technology, the air pressure in the main pipe A is higher than the external environmental pressure, and the negative pressure in the main pipe B is lower than the external environmental pressure, ensuring that when the color-printed carton sheet is placed on the roller, the suction pipe C contracts into the chute under the pressure of the sheet and makes the suction port on the side wall of the suction pipe C and the suction groove on the side wall of the chute generate negative pressure to adsorb the sheet. After the sheet leaves the adsorption shell corresponding to the suction pipe C, the suction pipe C can be smoothly reset under the action of the air pressure at the bottom of the chute.

[0015] As a further improvement of the present technology, the connecting pipe is made of rubber.

[0016] As a further improvement of this technology, the production method is as follows: 1. Start the motor to drive all rollers to rotate in the same direction. At the same time, start the negative pressure pump and the air supply pump on the bracket. The air pressure in the space at the bottom of the chute will push the suction pipe C to the limit state. The suction port on the side wall of the suction pipe C is closed by the side wall of the chute, and negative pressure is generated in each suction groove; 2. Place the color-printed carton sheet on the roller for transmission; the suction pipe C corresponding to the adsorption shell on the roller that acts on the color-printed carton sheet is pressed into the corresponding chute, and the suction port on the side wall of the suction pipe C is closed by the side wall of the chute. The air port is opposite to the suction groove on the side wall of the corresponding slide, and negative pressure is generated in the adsorption shell, which effectively adsorbs the color-printed carton sheet; 3. The rotating roller drives the color-printed carton sheet to move horizontally through the adsorption shell; 4. As the roller rotates, the connecting pipe corresponding to the adsorption shell that adsorbs the color-printed carton sheet is deformed. The adsorption shell is separated from the color-printed carton board after the roller rotates a certain amplitude. At the same time, the suction pipe C is reset under the action of the air pressure in the annular groove A, the suction port on the suction pipe C is closed, and the negative pressure disappears, avoiding waste of adsorption force.

[0017] Compared to traditional color-printed carton production equipment, the negative pressure zone created by the suction shells on the rollers in this invention autonomously adjusts to match the size of the paperboard as it moves. This ensures that only the suction shells supporting the paperboard effectively apply negative pressure to it, keeping it tightly against the rollers for efficient transport, thus avoiding wasted suction. Furthermore, the negative pressure zone on the rollers that effectively absorbs the paperboard changes autonomously with the size of the paperboard, allowing for a wide adjustment range independent of the equipment structure.

[0018] In the present invention, the suction holes on the adsorption shell that interact with the cardboard and generate negative pressure on the cardboard are free of gaps, allowing the adsorption shell to adhere tightly to the cardboard. This ensures that the holes do not cause air movement near the cardboard, thereby preventing noise pollution. Furthermore, since there are no gaps between the holes and the cardboard, the adsorption shell adheres tightly to the cardboard. This eliminates the need for the adsorption shell to apply strong suction force to the cardboard through the holes, reducing the power consumption and cost of the negative pressure generating equipment.

[0019] The invention has a simple structure and good use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a partial cross-sectional schematic diagram of the present invention and its transmission structure.

[0021] Figure 2 It is a schematic diagram of the roller structure and its overall cross-section.

[0022] Figure 3 It is a schematic diagram of the cross-section of the structure at one end of the roller.

[0023] Figure 4 It is a schematic diagram of the circumferential distribution cross section of the adsorption shell on the roller.

[0024] Figure 5 It is a cross-sectional schematic diagram of the connecting structure of the inner ring groove B of the roller.

[0025] Figure 6 It is a schematic diagram of the roller and its transverse section.

[0026] Figure 7 It is a cross-sectional diagram of the suction pipe C, connecting pipe and adsorption shell.

[0027] Figure 8 It is a cross-sectional diagram showing the connection between the roller and the main pipes A and B.

[0028] The reference numbers in the figure are: 1. Bracket; 2. Roller; 3. Slide; 4. Ring groove A; 5. Ring groove B; 6. Air supply pipe B; 7. Air supply pipe A; 8. Intake pipe B; 9. Intake pipe A; 10. Intake pipe C; 11. Intake port; 12. Connecting pipe; 13. Adsorption shell; 14. Intake hole; 15. Silicone layer; 16. Rotating column; 17. Gear A; 18. Gear B; 19. Gear C; 20. Motor; 21. Main pipe A; 22. Main pipe B; 23. Intake groove. DETAILED DESCRIPTION

[0029] The accompanying drawings are schematic diagrams of the present invention to facilitate understanding of the structural operation principle. The specific product structure and proportional dimensions can be determined according to the use environment and conventional technology.

[0030] like Figure 1 As shown, it includes a bracket 1, a roller 2, and a motor 20, wherein Figure 1 As shown, a plurality of rollers 2 for conveying color-printed carton sheets are mounted on the bracket 1 and driven by a motor 20; Figure 2 、 3 As shown in FIG6 , the roller 2 has a structure that effectively adsorbs the color-printed carton board by only making the part in contact with the color-printed carton board without wasting suction force and without generating noise.

[0031] like Figure 1 、 2 As shown in Figures 6 and 7, the rotating posts 16 at both ends of the roller 2 rotate in cooperation with the circular grooves on the bracket 1; a gear A17 is installed on one rotating post 16 of the roller 2, and the gears A17 on any two adjacent rotating posts 16 are simultaneously engaged with the gear B18 on the bracket 1; the gear A17 corresponding to one roller 2 is engaged with the gear C19 on the output shaft of the motor 20.

[0032] like Figure 6 As shown, the cylindrical surface of the roller 2 is densely distributed with a plurality of groups of slide grooves 3 along its axial direction, and each group of slide grooves 3 is composed of slide grooves 3 densely distributed in the circumferential direction; Figure 3 、 5As shown in Figure 8, the suction groove 23 on the side wall of each group of chutes 3 is connected to the annular groove B5 in the roller 2; an annular suction pipe B8 is installed in the hollow rotating column 16 at one end of the roller 2, which connects all the annular grooves B5 and the suction main pipe B22 on the bracket 1; the bottom of each group of chutes 3 is connected to the annular groove A4 in the roller 2; an air supply pipe B6 is installed in the middle of the suction pipe B8, which connects all the annular grooves A4 and the air supply main pipe A21 on the bracket 1; the main pipe A21 is connected to the negative pressure pump on the bracket 1, and the main pipe B22 is connected to the air supply pump on the bracket 1.

[0033] like Figure 3 、 6 As shown in Figures 8 and 8, the end of the intake pipe B8 is sealed and rotated with an intake pipe A9 connected to the main pipe B22, and the end of the air supply pipe B6 is sealed and rotated with an air supply pipe A7 connected to the main pipe A21.

[0034] like Figure 3 、 4 As shown in Figure 7, an air suction pipe C10 with an open outer end slides radially and sealedly along the roller 2 in the chute 3, and the air suction port 11 on the side wall of the air suction pipe C10 cooperates with the air suction groove 23 on the side wall of the corresponding chute 3; the open end of the air suction pipe C10 is installed with an adsorption shell 13 connected to it through an elastic connecting tube 12; the end surface of the adsorption shell 13 that cooperates with the color-printed carton board is densely covered with air suction holes 14.

[0035] like Figure 7 As shown, the end surface of the suction hole 14 of the adsorption shell 13 is provided with a silica gel layer 15 that matches the color-printed carton board.

[0036] like Figure 3 、 8 As shown, the air pressure in the main pipe A21 is higher than the external environmental pressure, and the negative pressure in the main pipe B22 is lower than the external environmental pressure, ensuring that when the color-printed carton sheet is placed on the roller 2, the suction pipe C10 contracts into the chute 3 under the pressure of the sheet and makes the suction port 11 on the side wall of the suction pipe C10 and the suction groove 23 on the side wall of the chute 3 relatively generate negative pressure to adsorb the sheet. After the sheet leaves the adsorption shell 13 corresponding to the suction pipe C10, the suction pipe C10 can be smoothly reset under the action of the air pressure at the bottom of the chute 3.

[0037] like Figure 4 、 7 As shown, the connecting pipe 12 is made of rubber.

[0038] like Figure 1 、 34, the production method is as follows: 1. Start the motor 20 to drive all the rollers 2 to rotate in the same direction. At the same time, start the negative pressure pump and the air supply pump on the bracket 1. The air pressure in the bottom space of the chute 3 pushes the suction pipe C10 to the limit state. The suction port 11 on the side wall of the suction pipe C10 is closed by the side wall of the chute 3, and negative pressure is generated in each suction groove 23; 2. Place the color-printed carton sheet on the roller 2 for transmission; the suction pipe C10 corresponding to the adsorption shell 13 on the roller 2 that acts on the color-printed carton sheet is pressed into the corresponding chute 3, and the suction port 11 on the side wall of the suction pipe C10 is closed. Opposite to the suction groove 23 on the side wall of the corresponding chute 3, negative pressure is generated in the suction shell 13 and the color-printed carton sheet is effectively adsorbed; 3. The rotating roller 2 drives the color-printed carton sheet to move horizontally through the suction shell 13; 4. As the roller 2 rotates, the connecting tube 12 corresponding to the suction shell 13 that adsorbs the color-printed carton sheet is deformed. After the roller 2 rotates a certain amplitude, the suction shell 13 is separated from the color-printed carton board. At the same time, the suction pipe C10 is reset under the action of the air pressure in the annular groove A4, the suction port 11 on the suction pipe C10 is closed, and the negative pressure disappears, avoiding waste of adsorption force.

[0039] The workflow of the present invention is as follows:

[0040] When the present invention is needed to transport color-printed carton sheets, the motor 20 is started to drive all rollers 2 to rotate in the same direction. At the same time, the negative pressure pump and the air supply pump on the bracket 1 are started. The air pressure in the bottom space of the chute 3 pushes the suction pipe C10 to the limit state, and the suction port 11 on the side wall of the suction pipe C10 is closed by the side wall of the chute 3, and negative pressure is generated in each suction groove 23.

[0041] The color-printed carton sheet is placed on roller 2, and the rotating roller 2 transports the cardboard.

[0042] After the sheet is prevented from being put on the roller 2, the suction pipe C10 corresponding to the adsorption shell 13 on the roller 2 that acts on the color-printed carton sheet is pressed into the corresponding chute 3. The suction port 11 on the side wall of the suction pipe C10 is opposite to the suction groove 23 on the side wall of the corresponding chute 3. Negative pressure is generated in the adsorption shell 13 and the color-printed carton sheet is effectively adsorbed. The rotating roller 2 drives the color-printed carton sheet to move horizontally through the adsorption shell 13 that forms adsorption on the color-printed carton.

[0043] As the roller 2 rotates, the connecting tube 12 corresponding to the adsorption shell 13 that adsorbs the color-printed carton sheet material is deformed. The adsorption shell 13 separates from the color-printed carton board after the roller 2 rotates a certain amplitude. At the same time, the suction pipe C10 is reset under the action of the air pressure in the annular groove A4, and the suction port 11 on the suction pipe C10 is closed and the negative pressure disappears, avoiding waste of adsorption force.

[0044] When the adsorption shell 13 on the suction pipe C10 effectively adsorbs the color-printed carton board, there is no gap between the adsorption shell 13 and the board, and no airflow is generated around the adsorption shell 13, and thus no noise caused by the airflow is generated.

[0045] In summary, the present invention provides the following beneficial effects: The negative pressure zone formed by the suction shells 13 on the roller 2 autonomously adjusts to match the area of ​​the paperboard as it moves. This ensures that only the suction shells 13 supporting the paperboard effectively apply negative pressure to it, ensuring that the paperboard adheres tightly to the roller 2 and is effectively transported, thus avoiding wasteful suction. Furthermore, the negative pressure zone on the roller 2 that effectively absorbs the paperboard autonomously changes with the size of the paperboard, allowing for a wide adjustment range independent of the device's structure.

[0046] In the present invention, the suction holes 14 on the adsorption shell 13 interact with the cardboard to generate negative pressure, ensuring that the adsorption shell 13 adheres tightly to the cardboard. This ensures that the suction holes 14 do not cause air movement near the cardboard, thereby preventing noise pollution. Furthermore, since there is no gap between the suction holes 14 and the cardboard, the adsorption shell 13 adheres tightly to the cardboard. This eliminates the need for the adsorption shell 13 to apply strong suction force to the cardboard through the suction holes 14, reducing the power consumption and cost of the negative pressure generating equipment.

Claims

1. A color-printed carton production device, characterized by: The invention comprises a support, rollers and a motor, wherein a plurality of rollers are mounted on the support and driven by the motor to transport the color-printed carton sheets. The rollers have a structure that effectively absorbs the color-printed carton paperboard by only making the parts in contact with the color-printed carton sheets without wasting suction force or generating noise. The rotating posts at both ends of the roller rotate in conjunction with the circular grooves on the bracket; a gear A is mounted on one rotating post of the roller, and the gears A on any two adjacent rotating posts simultaneously mesh with the gear B on the bracket; the gear A corresponding to one roller meshes with the gear C on the output shaft of the motor; The cylindrical surface of the roller is densely distributed with several groups of chute grooves along its axial direction, and each group of chute grooves is composed of chute grooves densely distributed in a circumferential direction; the suction grooves on the side walls of each group of chute grooves are connected to the annular grooves B in the roller; an annular suction pipe B is installed in the hollow rotating column at one end of the roller, connecting all the annular grooves B with the suction main pipe B on the bracket; the bottom of each group of chute grooves is connected to the annular groove A in the roller; an air supply pipe B is installed in the middle of the suction pipe B, connecting all the annular grooves A with the air supply main pipe A on the bracket; the main pipe A is connected to the negative pressure pump on the bracket, and the main pipe B is connected to the air supply pump on the bracket; The end of the air intake pipe B is sealed and rotated with the air intake pipe A connected to the main pipe B, and the end of the air supply pipe B is sealed and rotated with the air supply pipe A connected to the main pipe A; An air suction pipe C with an outer end opening is sealed and slides along the radial direction of the roller in the chute. The air suction port on the side wall of the air suction pipe C cooperates with the air suction groove on the side wall of the corresponding chute. The open end of the air suction pipe C is connected to the adsorption shell installed through an elastic connecting pipe. The end surface of the adsorption shell that cooperates with the color-printed carton board is densely covered with air suction holes. The air pressure in the main pipe A is higher than the external environmental pressure, and the negative pressure in the main pipe B is lower than the external environmental pressure; this ensures that when the color-printed carton sheet is placed on the roller, the suction pipe C contracts into the chute under the pressure of the sheet and makes the suction port on the side wall of the suction pipe C and the suction groove on the side wall of the chute relatively generate negative pressure to adsorb the sheet; and after the sheet leaves the adsorption shell corresponding to the suction pipe C, the suction pipe C can be smoothly reset under the action of the air pressure at the bottom of the chute.

2. The color-printed carton production device according to claim 1, characterized in that: The end surface of the air suction hole of the adsorption shell is provided with a silica gel layer matched with the color-printed carton plate.

3. The color-printed carton production device according to claim 1, characterized in that: The connecting pipe is made of rubber.

4. The method for producing a color-printed carton production device according to claim 1, characterized in that: The production method is as follows:

1. Start the motor to drive all rollers to rotate in the same direction. At the same time, start the negative pressure pump and the air supply pump on the bracket. The air pressure in the space at the bottom of the chute will push the suction pipe C to the limit state, and the suction port on the side wall of the suction pipe C will be closed by the side wall of the chute, and negative pressure will be generated in each suction groove; 2. Place the color-printed carton sheet on the roller for transmission; the suction pipe C corresponding to the adsorption shell on the roller that acts on the color-printed carton sheet is pressed into the corresponding chute, and the suction port on the side wall of the suction pipe C is opposite to the suction groove on the side wall of the corresponding chute, so that negative pressure is generated in the adsorption shell and the color-printed carton sheet is effectively adsorbed; 3. The rotating roller drives the color-printed carton sheet to move horizontally through the adsorption shell; 4. As the roller rotates, the connecting pipe corresponding to the adsorption shell that adsorbs the color-printed carton sheet is deformed, and the adsorption shell is separated from the color-printed carton board after the roller rotates a certain amplitude. At the same time, the suction pipe C is reset under the action of the air pressure in the annular groove A, the suction port on the suction pipe C is closed, and the negative pressure disappears.

Images