Vacuum pressure-free paper feeding platform

Abstract

The utility model relates to a vacuum pressure-free paper feeding platform which comprises two opposite rack plates and further comprises an air bellow, a paper feeding mechanism, a paper feeding mechanism, a paper feeding mechanism and a paper feeding mechanism, and the two ends of the air bellow are fixedly arranged on a rack; the multiple paper feeding rollers are arranged at the opening of the air bellow and are arranged side by side in the width direction of the air bellow, and a plurality of paper feeding wheels are fixedly arranged side by side at equal intervals in the axial direction of the paper feeding rollers; the two ends of the paper feeding plate are fixed to the rack plate respectively, the paper feeding plate is arranged on the upper side of the paper feeding roller, and windows corresponding to the paper feeding wheels are formed in the end face of the paper feeding plate, and the paper feeding wheels can be exposed out of the windows. The paperboard is adsorbed on the paperboard feeding plate through vacuum negative pressure, the paperboard is conveyed in the rotating process of the paperboard feeding wheel, in this way, the situation that the paperboard is rolled in the conveying process, and consequently the structure of the paperboard is damaged can be avoided, and after the paperboard continues to be adsorbed through the vacuum negative pressure, the paperboard is conveyed, so that the paperboard conveying efficiency is improved. And the conveying precision of the paperboards is high.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard box printing and packaging machinery technology, and in particular to a vacuum pressure-free paper feeding platform. Background Technology

[0002] Corrugated cardboard box printing and packaging machinery is a special equipment suitable for processing corrugated cardboard into cartons by die-cutting, creasing, printing and other processes during the conveying process. During the conveying process of corrugated cardboard, two oppositely placed rubber rollers are usually used to convey the corrugated cardboard between them by rotating relative to each other.

[0003] Paper feeders are used to transport stacked cardboard pieces one by one, facilitating different processing steps for printing and packaging machinery. During feeding, a pressing and conveying method is often used to ensure accuracy. However, this method can sometimes result in excessive pressure that damages the corrugated paper during transport.

[0004] Therefore, a new technical solution is needed to solve the above-mentioned technical problems. Utility Model Content

[0005] The purpose of this invention is to provide a vacuum pressure-free paper feeding platform to solve the above-mentioned technical problems.

[0006] The technical solution adopted by this utility model for a vacuum pressure-free paper feeding platform is as follows:

[0007] A vacuum pressure-free paper feeding platform includes two opposing frame plates, and further includes:

[0008] The bellows is fixedly mounted on the frame at both ends. It has an opening at the upper end and an air intake at the lower end that is connected to an external exhaust device through a pipe. The lower end of the bellows is shaped like a horn with a gradually decreasing length.

[0009] The paper feeding roller includes multiple paper feeding rollers arranged side by side at the opening of the air box and along the width of the air box. Both ends of the paper feeding rollers are rotatably connected to the frame plate, and a number of paper feeding wheels are fixedly arranged side by side at equal intervals along the axial direction of the paper feeding rollers. A drive device that is connected to the paper feeding rollers is fixedly mounted on the frame plate to drive the paper feeding rollers to rotate around the axis.

[0010] The paper feeder has two ends fixed on the frame plate and is positioned on the upper side of the paper feed roller. The end face of the paper feeder has windows that are respectively opposite to the paper feed rollers and allow the paper feed rollers to be exposed. An adsorption gap for air flow is provided between the paper feed rollers and the windows.

[0011] Furthermore, the bellows includes:

[0012] The box body has two ends fixedly mounted on the frame plate, and an air duct is formed inside to enclose the paper feeding roller.

[0013] The air duct is located at the opening on the lower side of the main body of the box, the air intake is located at the lower end of the air duct, and the air duct is in the shape of a trumpet with its length gradually decreasing.

[0014] A partition plate is disposed between the air hopper and the main body of the box. The partition plate has a plurality of air passages along its length to connect the air hopper and the main body of the box.

[0015] Furthermore, the main body of the box is provided with several partition plates located between two adjacent air vents, which divide the main body of the box into several isolated compartments along the length direction.

[0016] Furthermore, the partition plate is provided with a plurality of damper assemblies corresponding to the air inlets, the damper assemblies being used to open or close the air inlets.

[0017] Furthermore, the damper assembly includes:

[0018] A rotating shaft is located on one side of the air vent and is rotatably connected to the partition plate, with one end extending outward toward the outer side of the box body, forming a drive end;

[0019] A baffle, one end of which is fixedly connected to the rotating shaft, and the other end extends away from the rotating shaft to cover the air vent.

[0020] Rotating the drive end drives the rotating shaft to rotate around the axis, thereby causing the baffle to open or close the air vent.

[0021] Furthermore, the damper assembly also includes a plurality of rotary cylinders corresponding to the rotating shaft. The cylinder body of the rotary cylinder is fixedly mounted on the main body of the housing, and its output end is connected to the drive end for driving the rotating shaft to rotate.

[0022] Furthermore, a paper-stopping mechanism is provided to organize the stacked cardboard placed on the paper feeder, the paper feeder mechanism including:

[0023] Side panels, wherein two side panels are provided that are opposite each other;

[0024] A crossbeam, which is located on the upper side of the paper feeder and has its two ends fixedly mounted on the frame plate;

[0025] The baffle plate includes two opposing baffle plates, one side edge of which is slidably connected to the crossbeam, and the other side edge of which extends away from the crossbeam in the conveying direction.

[0026] An adjustment unit is disposed on the frame plate and is connected to the two guide plates for adjusting the spacing between the two guide plates.

[0027] Furthermore, the adjustment unit includes a lead screw rotatably connected to the crossbeam and an adjustment motor fixedly mounted on the frame plate. The adjustment motor is drively connected to the lead screw to drive the lead screw to rotate axially. It also includes a nut fixedly mounted on the baffle plate and threadedly connected to the lead screw.

[0028] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0029] This utility model provides a vacuum pressure-free paper feeding platform. It features a bellows and a paper feeding roller on the underside of the paper feeding board, with multiple paper feeding wheels protruding along windows on the board. When a paperboard is placed on the board, the bellows draws air from it, creating a negative pressure on the surface, thus adsorbing the paperboard onto the board. When the drive device rotates the paper feeding roller, the paper feeding wheels transport the paperboard. In this embodiment, the paperboard is adsorbed onto the board using vacuum negative pressure, and then transported during the rotation of the paper feeding wheels. This method avoids the paperboard being crushed during transport, preventing structural damage. Furthermore, the vacuum negative pressure ensures high transport accuracy.

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of this utility model.

[0032] Figure 2 This is a schematic diagram of the exploded structure of this utility model. Figure 1 .

[0033] Figure 3 This is a schematic diagram of the exploded structure of this utility model. Figure 2 .

[0034] Figure 4 This is a cross-sectional view of the present invention. Detailed Implementation

[0035] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for explaining this utility model and are not intended to limit this utility model.

[0036] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0037] Furthermore, the use of terms such as "first" and "second" in the embodiments of this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated.

[0038] This utility model embodiment provides a vacuum pressure-free paper feeding platform. A bellows 200 and a paper feeding roller 300 are arranged on the lower side of the paper feeding board 400. Multiple paper feeding wheels 310 are arranged on the paper feeding roller 300, protruding along windows 410 opened on the paper feeding board 400. When paper is placed on the paper feeding board 400, the bellows 200 evacuates the paper feeding board 400, creating a negative pressure on its surface, thus adsorbing the paper onto the paper feeding board 400. When the driving device 320 drives the paper feeding roller 300 to rotate, the paper feeding wheels 310 transport the paper on the paper feeding board 400. In this embodiment, the paper is adsorbed onto the paper feeding board 400 by vacuum negative pressure, and the paper is transported during the rotation of the paper feeding wheels 310. This method avoids the paper being crushed by rollers during transport, thus preventing damage to the paper's structure. Furthermore, by adsorbing the paper through vacuum negative pressure before transport, the transport accuracy of the paper is high.

[0039] Specifically, such as Figure 1-4As shown in the figure, the vacuum pressure-free paper feeding platform provided by this utility model includes two opposing frame plates 100, and also includes a bellows 200, a paper feeding roller 300, and a paper feeding plate 400. The bellows 200 is fixedly mounted on the frame at both ends, with an opening at its upper end and an air intake 201 at its lower end connected to an external exhaust device via a pipe. The lower end of the bellows 200 is shaped like a trumpet with a gradually decreasing length. Multiple paper feeding rollers 300 are arranged side-by-side at the opening of the bellows 200 and along the width of the bellows 200. The two ends of the paper feeding rollers 300 are rotatably connected. On the frame plate 100, a number of paper feeding rollers 310 are fixedly arranged at equal intervals along the axial direction of the paper feeding roller 300. A drive device 320 connected to the paper feeding roller 300 is fixedly installed on the frame plate 100 to drive the paper feeding roller 300 to rotate around the axis. The two ends of the paper feeding plate 400 are fixed on the frame plate 100 and are set on the upper side of the paper feeding roller 300. The end face of the paper feeding plate 400 is provided with windows 410 corresponding to the paper feeding rollers 310 so that the paper feeding rollers 310 can be exposed. An adsorption gap for air to flow through is provided between the paper feeding rollers 310 and the windows 410.

[0040] During the cardboard conveying process, the cardboard is placed on the feeding plate 400. The suction port 201 is connected to the exhaust device, which draws air from the air box 200. The airflow flows along the gap between the feeding roller 310 and the window 410, creating a negative pressure surface on the feeding plate 400. This allows the cardboard to be stably adhered to the surface of the feeding plate 400. At this time, the drive device 320 drives the feeding roller 300 to rotate, and the feeding roller 310 drives the cardboard adhered to the feeding plate 400. By using vacuum negative pressure to bring the cardboard and the feeding roller 310 close together, accurate conveying of the cardboard is ensured. During the conveying process, the cardboard is protected from pressure from above, preventing damage. It is worth noting that setting the lower end of the air box 200 to a funnel shape ensures that the suction force at the feeding plate 400 is approximately uniform, thus ensuring the stability of the cardboard adhesion and the accuracy of the conveying.

[0041] In this embodiment, the air box 200 includes a box body 210, an air head, and a partition plate 230. Specifically, the two ends of the box body 210 are fixedly mounted on the frame plate 100, and an air duct is formed inside to cover the paper feeding roller 300. An air intake 201 is located at the lower end of the air hopper 220 at the opening on the lower side of the box body 210, and the air hopper 220 is in the shape of a trumpet with a gradually decreasing length. The partition plate 230 is located between the air hopper 220 and the box body 210, and the partition plate 230 is provided with a plurality of air passages 231 along the length direction to connect the air hopper 220 and the box body 210. A partition plate 230 is provided between the box body 210 and the air hopper 220, and an air passage 231 is provided on the partition plate 230 to connect the air hopper 220 and the box body 210. This allows the airflow inside the air box 200 to flow along the air passage 231, and the air pressure inside the box body 210 is made approximately the same through the distribution of the air passage 231, thereby ensuring the stability of cardboard adsorption.

[0042] In this embodiment, to further ensure the stability of cardboard adsorption, the main body 210 is provided with several partition plates 212 located between two adjacent air vents 231, dividing the main body 210 into several isolated chambers 213 along its length. The partition plates 212 divide the main body 210 into multiple independent chambers 213, each chamber 213 corresponding to an air vent 231, thus ensuring that each chamber 213 is independent of each other, and the internal air pressure is relatively independent and will not affect each other, thereby ensuring the balance of air pressure in each chamber 213 inside the box.

[0043] To accommodate the conveying of cardboard of different sizes, several damper assemblies 240 are provided on the partition plate 230, each corresponding to an air outlet 231. The damper assemblies 240 are used to open or close the air outlets 231. By closing the air outlets 231, the area of ​​the adsorption zone on the cardboard feeder 400 can be adjusted, thereby adapting to cardboard of different sizes. Furthermore, the output power of the external air extraction device can be adjusted, resulting in more scientific and efficient energy distribution and avoiding energy waste.

[0044] In this embodiment, the damper assembly 240 includes a rotating shaft 241 and a baffle 243. The rotating shaft 241 is rotatably connected to the partition plate 230 on one side of the air outlet 231, and one end extends outward toward the outer side of the main body 210, forming a drive end 242. One edge of the baffle 243 is fixedly connected to the rotating shaft 241, and the other end extends away from the rotating shaft 241 to cover the air outlet 231. Rotating the drive end 242 drives the rotating shaft 241 to rotate around the axis, thereby causing the baffle 243 to open or close the air outlet 231. The operator can manually rotate the drive end 242, thereby causing the baffle 243 to open or close the air inlet 231. At the same time, in order to further improve the degree of automation, the damper assembly 240 also includes multiple rotary cylinders 244 corresponding to the rotating shaft 241. The cylinder body of the rotary cylinder 244 is fixedly mounted on the housing body 210, and its output end is connected to the drive end 242 to drive the rotating shaft 241 to rotate. The rotary cylinders 244 can drive the rotating shaft 241 to rotate, thereby realizing automatic control of the damper assembly 240.

[0045] In this embodiment, a paper-stopping mechanism 110 is provided to transport paperboards of different sizes. This mechanism organizes the stacked paperboards placed on the paperboard feeding 400, ensuring that the paperboards are transported after being organized by the paper-stopping mechanism 110. The paper feeding mechanism includes side plates 117, crossbeams 111, paper-stopping plates 112, and an adjustment unit 113. The side plates 117 consist of two opposing members. The crossbeams 111 are located on the upper side of the paperboard feeding 400, with both ends fixedly mounted on the frame plate 100. The paper-stopping plates 112 consist of two opposing members, with one edge slidably connected to the crossbeams 111. The other side extends away from the crossbeam 111 along the conveying direction. An adjustment unit 113 is mounted on the frame plate 100 and is connected to the two guide plates 112 for adjusting the distance between them. In this embodiment, the adjustment unit 113 includes a lead screw 114 rotatably connected to the crossbeam 111 and an adjustment motor 115 fixedly mounted on the frame plate 100. The adjustment motor 115 is connected to the lead screw 114 to drive it to rotate axially. It also includes a nut 116 fixedly mounted on the guide plates 112 and threadedly connected to the lead screw 114. During the conveying of cardboard of different sizes, the distance between the two guide plates 112 can be adjusted using the adjustment unit 113 to adapt to the cardboard size. During the adjustment process, the neatness of the cardboard stacking is also improved, ensuring that the cardboard on the stack is aligned.

[0046] For those skilled in the art, various other corresponding changes and modifications can be obtained based on the structure and principles disclosed in this utility model, and all such changes and modifications fall within the protection scope of this utility model.

Claims

1. A vacuum pressure-free paper feeding platform, comprising two opposing frame plates, characterized in that, It also includes: The bellows is fixedly mounted on the frame at both ends. It has an opening at the upper end and an air intake at the lower end that is connected to an external exhaust device through a pipe. The lower end of the bellows is shaped like a horn with a gradually decreasing length. The paper feeding roller includes multiple paper feeding rollers arranged side by side at the opening of the air box and along the width of the air box. Both ends of the paper feeding rollers are rotatably connected to the frame plate, and a number of paper feeding wheels are fixedly arranged side by side at equal intervals along the axial direction of the paper feeding rollers. A drive device that is connected to the paper feeding rollers is fixedly mounted on the frame plate to drive the paper feeding rollers to rotate around the axis. The paper feeder has two ends fixed on the frame plate and is positioned on the upper side of the paper feed roller. The end face of the paper feeder has windows that are respectively opposite to the paper feed rollers and allow the paper feed rollers to be exposed. An adsorption gap for air flow is provided between the paper feed rollers and the windows.

2. The vacuum pressure-free paper feeding platform according to claim 1, characterized in that, The bellows includes: The box body has two ends fixedly mounted on the frame plate, and an air duct is formed inside to enclose the paper feeding roller. The air duct is located at the opening on the lower side of the main body of the box, the air intake is located at the lower end of the air duct, and the air duct is in the shape of a trumpet with its length gradually decreasing. A partition plate is disposed between the air hopper and the main body of the box. The partition plate has a plurality of air passages along its length to connect the air hopper and the main body of the box.

3. The vacuum pressure-free paper feeding platform according to claim 2, characterized in that, The main body of the box is also provided with several partition plates located between two adjacent air vents, which divide the main body of the box into several isolated compartments along the length direction.

4. The vacuum pressure-free paper feeding platform according to claim 3, characterized in that, The partition plate is further provided with a number of damper assemblies that correspond to the air inlets, and the damper assemblies are used to open or close the air inlets.

5. A vacuum pressure-free paper feeding platform according to claim 4, characterized in that, The damper assembly includes: A rotating shaft is located on one side of the air vent and is rotatably connected to the partition plate, with one end extending outward toward the outer side of the box body to form a drive end; A baffle, one end of which is fixedly connected to the rotating shaft, and the other end extends away from the rotating shaft to cover the air vent. Rotating the drive end drives the rotating shaft to rotate around the axis, thereby causing the baffle to open or close the air vent.

6. A vacuum pressure-free paper feeding platform according to claim 5, characterized in that, The damper assembly also includes a plurality of rotary cylinders corresponding to the rotating shaft. The cylinder body of the rotary cylinder is fixedly mounted on the main body of the housing, and its output end is connected to the drive end to drive the rotating shaft to rotate.

7. A vacuum pressure-free paper feeding platform according to claim 4, characterized in that, A paper-stopping mechanism is also provided to organize the stacked cardboard placed on the paper feeder. The paper feeder includes: Side panels, wherein two side panels are provided that are opposite each other; A crossbeam is located on the upper side of the paper feeder, and both ends are fixedly mounted on the frame plate. The baffle plate includes two opposing baffle plates, one side edge of which is slidably connected to the crossbeam, and the other side edge of which extends away from the crossbeam in the conveying direction. An adjustment unit is disposed on the frame plate and is connected to the two guide plates for adjusting the spacing between the two guide plates.

8. A vacuum pressure-free paper feeding platform according to claim 7, characterized in that, The adjustment unit includes a lead screw rotatably connected to the crossbeam and an adjustment motor fixedly mounted on the frame plate. The adjustment motor is driven by the lead screw to drive the lead screw to rotate axially. It also includes a nut fixedly mounted on the baffle plate and threadedly connected to the lead screw.

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