Novel servo cam segmented lifting pressure-free paper feeding equipment

Abstract

The utility model discloses novel servo cam segmented lifting pressure-free paper feeding equipment, and relates to the technical field of corrugated paper processing equipment, in particular to a cam operation structure, the cam operation structure comprises a mounting frame mounted on one side of an equipment box, and the interior of the mounting frame is rotationally connected with a first rotating shaft through a bearing; a first cam, a second cam and a third cam sleeve the outside of the first rotating shaft at equal intervals in the length direction of the first rotating shaft; circumferential sliding grooves are formed in the centers of the outer side walls of the first cam, the second cam and the third cam, and each circumferential sliding groove is provided with at least one offset part. According to the utility model, the rail design is carried out on the circumferential sliding groove and the offset part on each cam, so that the front and rear rows of grating platforms can be lifted in a sectional manner, the time for supporting an upper-layer paperboard can be further saved, the paper feeding is more accurate, the overall energy consumption is lower, the actual production of the paperboard is more facilitated, and the production efficiency is improved. And the use effect is better.

Description

Technical Field

[0001] This utility model relates to the technical field of corrugated paper processing equipment, specifically a new type of servo cam segmented lifting and pressure-free paper feeding equipment. Background Technology

[0002] Currently, corrugated cardboard box production lines both domestically and internationally mainly consist of functional units such as a paper feeding section, printing section, slotting section, die-cutting and creasing section, and stacking section. These functional units are arranged on guide rails according to the process sequence, and power is transmitted through gear meshing between the units to achieve synchronized and coordinated operation of the entire production line. Among these, the paper feeding section is indispensable, whether it's a corrugated cardboard box production line or a single processing machine, and the accuracy of the paper feeding directly determines the subsequent printing and die-cutting accuracy.

[0003] In corrugated cardboard box processing equipment, the lifting mechanism in traditional pressure-free leading edge feeding equipment is designed to lift the grid platform to reduce the wear of the paper feeding rollers. However, most lifting mechanisms are not flexible enough, and multi-row grid platforms can only rise and fall uniformly, and cannot achieve segmented lifting, so the accuracy and stability of paper feeding still need to be improved. Utility Model Content

[0004] The purpose of this invention is to provide a novel servo cam segmented lifting and pressure-free paper feeding device to solve the problems mentioned in the background art.

[0005] To achieve the above-mentioned objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a novel servo cam segmented lifting and pressure-free paper feeding device, including a device box with an open top. The device box contains a cam segmented lifting mechanism, which specifically includes:

[0007] The cam-operated structure includes a mounting bracket installed on one side of the equipment housing. A first rotating shaft is rotatably connected inside the mounting bracket via bearings. A first cam, a second cam, and a third cam are equally spaced along the length of the first rotating shaft. A circumferential sliding groove is formed at the center of the outer sidewall of each of the first, second, and third cams, and the circumferential sliding groove has at least one offset portion. The cam-operated structure also includes a first drive assembly for driving the first rotating shaft to rotate.

[0008] The segmented lifting structure includes a first lifting component, a second lifting component, and a third lifting component. Each of the first, second, and third lifting components includes: a connecting rod vertically disposed inside the equipment box; a second rotating shaft horizontally rotatably connected inside the equipment box; a connecting piece and an abutting piece sleeved outside the second rotating shaft; and a grid platform fixed to the top of the connecting rod.

[0009] Preferably, the first drive component includes a first servo motor mounted on a mounting bracket, and the output end of the first servo motor is connected to the first rotating shaft through a first transmission member.

[0010] Preferably, the connector includes a first hinge piece sleeved on the second rotating shaft, and a second hinge piece hinged to the first hinge piece; the top of the second hinge piece is fixed to the bottom of the connecting rod; the connector also includes a fixing block fixed to the inner side wall of the equipment box, and the connecting rod passes through the fixing block and slides vertically with the fixing block.

[0011] Preferably, the abutting member includes a connecting block sleeved on the second rotating shaft and close to the first rotating shaft, and the end of the connecting block facing the first rotating shaft is provided with an abutting block that cooperates with the inner wall of the circumferential sliding groove.

[0012] Preferably, a rolling conveyor structure is also provided at the top of the equipment box; the rolling conveyor structure includes a third rotating shaft rotatably connected to the inner wall of the equipment box, and a paper feeding roller is provided on the third rotating shaft, which passes through the grid hole on the grid platform; a second driving component is provided on the side of the equipment box away from the first driving component.

[0013] Preferably, the second drive assembly includes a connecting frame mounted on the side wall of the equipment housing, and a second servo motor is mounted on the connecting frame. The output end of the second servo motor is connected to the third rotating shaft through a second transmission component.

[0014] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects:

[0015] By designing the track for the circumferential sliding grooves and offset parts on each cam, the front and rear three rows of grid platforms can be lifted in segments. Compared with the existing technology where the grid platform only rises after the cardboard is completely detached from the grid platform, this equipment can further save the time of lifting the upper cardboard by lifting the grid platform in segments, thus making the paper feeding more accurate and the overall energy consumption lower. It is more conducive to the actual production of cardboard and has a better performance. It is suitable for three-layer, five-layer and seven-layer corrugated cardboard boxes. Attached Figure Description

[0016] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an improper limitation of this utility model.

[0017] Furthermore, the terms "installation," "setup," "equipped with," "connection," "linking," and "socketing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this application based on the specific circumstances.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded structural diagram of the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of the equipment box of this utility model;

[0021] Figure 4 This is a schematic diagram of the cam segmented lifting mechanism of this utility model;

[0022] Figure 5 This is a schematic diagram of the cam operation structure of this utility model;

[0023] Figure 6 This is a schematic diagram of the structure of the contact component of this utility model;

[0024] Figure 7 This is a structural schematic diagram of the connector of this utility model;

[0025] Figure 8 This is a schematic diagram of the motion states of the first cam, the second cam, and the third cam of this utility model;

[0026] Figure 9 This is a schematic diagram of the rolling conveyor structure of this utility model;

[0027] Figure 10 This is a schematic diagram of the structure of the second drive component of this utility model;

[0028] In the picture:

[0029] 1. Equipment box;

[0030] 2. Cam-driven segmented lifting mechanism;

[0031] 21. Cam operating structure; 211. Mounting bracket; 212. First rotating shaft; 213. First cam; 214. Second cam; 215. Third cam; 216. Circumferential sliding groove; 217. Offset part; 218. First drive assembly; 2181. First servo motor; 2182. First transmission component;

[0032] 22. Segmented lifting structure; 221. First lifting component; 222. Second lifting component; 223. Third lifting component;

[0033] 3. Connecting rod; 4. Second rotating shaft;

[0034] 5. Connecting parts; 501. First hinge; 502. Second hinge; 503. Fixing block;

[0035] 6. Abutting component; 601. Connecting block; 602. Abutting block;

[0036] 7. Grille platform;

[0037] 8. Rolling conveyor structure; 81. Third rotating shaft; 82. Paper feeding roller; 83. Second drive assembly; 831. Second servo motor; 832. Second transmission component; 833. Connecting frame. Detailed Implementation

[0038] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0039] Please see Figures 1-10 A novel servo cam-driven segmented lifting and pressure-free paper feeding device includes a device box 1 with an open top. The device box 1 contains a cam-driven segmented lifting mechanism 2, which specifically includes:

[0040] The cam-operating structure 21 includes a mounting bracket 211 installed on one side of the equipment housing 1. A first rotating shaft 212 is rotatably connected inside the mounting bracket 211 via bearings. A first cam 213, a second cam 214, and a third cam 215 are equally spaced along the length of the first rotating shaft 212. A circumferential sliding groove 216 is formed at the center of the outer sidewall of each of the first cam 213, the second cam 214, and the third cam 215, and the circumferential sliding groove 216 has at least one offset portion 217. The cam-operating structure 21 also includes a first driving component 218 for driving the first rotating shaft 212 to rotate.

[0041] The segmented lifting structure 22 includes a first lifting component 221, a second lifting component 222, and a third lifting component 223. Each of the first lifting component 221, the second lifting component 222, and the third lifting component 223 includes: a connecting rod 3 vertically disposed inside the equipment box 1, a second rotating shaft 4 horizontally rotatably connected inside the equipment box 1, a connecting piece 5 and an abutting piece 6 sleeved outside the second rotating shaft 4, and a grid platform 7 fixed to the top of the connecting rod 3.

[0042] Furthermore, the first drive assembly 218 includes a first servo motor 2181 mounted on a mounting bracket 211, and the output end of the first servo motor 2181 is connected to the first rotating shaft 212 via a first transmission member 2182; Figure 5 As can be seen, the first transmission component 2182 is a corresponding chain and sprocket transmission structure. Since it is existing technology, its specific structure and principle will not be described in detail in this embodiment.

[0043] Furthermore, the connecting member 5 includes a first hinge member 501 sleeved on the second rotating shaft 4, and a second hinge member 502 hinged on the first hinge member 501; the top of the second hinge member 502 is fixed to the bottom of the connecting rod 3; the connecting member 5 also includes a fixing block 503 fixed on the inner side wall of the equipment box 1, and the connecting rod 3 passes through the fixing block 503 and slides up and down with the fixing block 503.

[0044] Furthermore, the abutment 6 includes a connecting block 601 sleeved on the second rotating shaft 4 and close to the first rotating shaft 212, and the end of the connecting block 601 facing the first rotating shaft 212 is provided with an abutment block 602 that cooperates with the inner wall of the circumferential sliding groove 216. In specific use, by driving the first cam 213 to rotate (taking the first cam 213 as an example, the working principle of the other cams is the same), the abutment block 602 slides on the inner wall of the circumferential sliding groove 216. Under the action of the offset part 217, the connecting block 601 will drive the second rotating shaft 4 to swing cyclically at a certain frequency, thereby causing the first hinge 501 to swing. Under the action of the second hinge 502, the connecting rod 3 will drive the grid platform 7 to move up and down reciprocally.

[0045] Furthermore, a rolling conveyor structure 8 is provided at the top of the equipment box 1; the rolling conveyor structure 8 includes a third rotating shaft 81 rotatably connected to the inner wall of the equipment box 1, and a paper feeding roller 82 is provided on the third rotating shaft 81, which passes through the grid hole on the grid platform 7; a second driving assembly 83 is provided on the side of the equipment box 1 away from the first driving assembly 218.

[0046] Furthermore, the second drive assembly 83 includes a connecting frame 833 mounted on the side wall of the equipment housing 1, and a second servo motor 831 is mounted on the connecting frame 833. The output end of the second servo motor 831 is connected to the third rotating shaft 81 through a second transmission member 832. Figure 10 As can be seen, the second transmission component 832 is also a corresponding chain and sprocket transmission structure. Since it is existing technology, its specific structure and principle will not be described in detail in this embodiment.

[0047] Meanwhile, in this embodiment, to ensure the effective operation of the entire device, the inside of the device box 1 is also equipped with a suction device and other electrical components, which have the same structure as those in existing paper feeding devices. Therefore, their structure and principles will not be described in detail here. The following only explains the principles of the structures mentioned in this device:

[0048] In use, the second servo motor 831 drives the third rotating shaft 81 to rotate, causing the paper feeding roller 82 to rotate. Combined with the suction device, this conveys the bottom layer of cardboard. Simultaneously, the first servo motor 2181 is activated, driving the first rotating shaft 212 to rotate. The first rotating shaft 212 then drives the first cam 213, the second cam 214, and the third cam 215 to rotate. By adjusting the design trajectory of the offset portion 217 on each cam (e.g., ...), the paper is fed to the paper. Figure 8As shown), the grid platforms 7 in the first lifting assembly 221, the second lifting assembly 222, and the third lifting assembly 223 will rise sequentially. When the bottommost plate has just completely passed the grid platform 7 in the first lifting assembly 221, the grid platform 7 in the first lifting assembly 221 rises to lift all the remaining upper cardboard. Then, when the bottommost cardboard has completely passed the grid platform 7 in the second lifting assembly 222, the grid platform 7 in the second lifting assembly 222 rises and, together with the first row of grid platforms 7, lifts the upper cardboard. Similarly, when the bottommost cardboard has completely passed the grid platform 7 in the third lifting assembly 223, the grid platform 7 in the third lifting assembly 223... The three rows of grid platforms 7 rise together to support the upper layer of cardboard, and then descend synchronously to transport the next layer of cardboard. This process is the same as the above process, and so on. By designing the track for the circumferential sliding grooves 216 and the offset parts 217 on each cam, the three rows of grid platforms 7 can be lifted and lowered in segments. Compared with the existing technology where the grid platform 7 only rises after the cardboard is completely detached from the grid platform 7, this equipment can further save the time of supporting the upper layer of cardboard by lifting and lowering the grid platform 7 in segments, thereby making the paper feeding more accurate, and the overall energy consumption is lower, which is more conducive to the actual production of cardboard and has a better effect.

[0049] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A novel servo cam segmented lifting and pressure-free paper feeding device, comprising a device box (1) with an open top, characterized in that, The equipment box (1) is equipped with a cam segmented lifting mechanism (2), which specifically includes: The cam operating structure (21) includes a mounting bracket (211) installed on one side of the equipment box (1), and a first rotating shaft (212) is rotatably connected inside the mounting bracket (211) via a bearing. A first cam (213), a second cam (214), and a third cam (215) are equally spaced on the outside of the first rotating shaft (212) along its length direction. A circumferential sliding groove (216) is provided at the center of the outer side wall of the first cam (213), the second cam (214), and the third cam (215), and the circumferential sliding groove (216) has at least one offset portion (217). The cam operating structure (21) also includes a first driving component (218) for driving the first rotating shaft (212) to rotate. The segmented lifting structure (22) includes a first lifting component (221), a second lifting component (222), and a third lifting component (223). The first lifting component (221), the second lifting component (222), and the third lifting component (223) each include: a connecting rod (3) vertically installed inside the equipment box (1), a second rotating shaft (4) horizontally rotatably connected inside the equipment box (1), a connecting piece (5) and an abutting piece (6) sleeved outside the second rotating shaft (4), and a grid platform (7) fixed to the top of the connecting rod (3).

2. The novel servo cam segmented lifting and pressure-free paper feeding device according to claim 1, characterized in that: The first drive assembly (218) includes a first servo motor (2181) mounted on a mounting bracket (211), and the output end of the first servo motor (2181) is connected to the first rotating shaft (212) through a first transmission member (2182).

3. The novel servo cam segmented lifting and pressure-free paper feeding device according to claim 2, characterized in that: The connector (5) includes a first hinge (501) sleeved on the second rotating shaft (4) and a second hinge (502) hinged on the first hinge (501); the top of the second hinge (502) is fixed to the bottom of the connecting rod (3); the connector (5) also includes a fixing block (503) fixed on the inner side wall of the equipment box (1), and the connecting rod (3) passes through the fixing block (503) and slides up and down with the fixing block (503).

4. The novel servo cam segmented lifting and pressure-free paper feeding device according to claim 3, characterized in that: The abutting member (6) includes a connecting block (601) sleeved on the second rotating shaft (4) and close to the first rotating shaft (212), and the end of the connecting block (601) facing the first rotating shaft (212) is provided with an abutting block (602) that cooperates with the inner wall of the circumferential sliding groove (216).

5. The novel servo cam segmented lifting and pressure-free paper feeding device according to claim 1, characterized in that: The top of the equipment box (1) is also provided with a rolling conveyor structure (8); the rolling conveyor structure (8) includes a third rotating shaft (81) rotatably connected to the inner wall of the equipment box (1), and a paper feeding roller (82) is provided on the third rotating shaft (81) through the grid hole on the grid platform (7); a second driving component (83) is provided on the side of the equipment box (1) away from the first driving component (218).

6. The novel servo cam segmented lifting and pressure-free paper feeding device according to claim 5, characterized in that: The second drive assembly (83) includes a connecting frame (833) mounted on the side wall of the equipment box (1), and a second servo motor (831) is mounted on the connecting frame (833). The output end of the second servo motor (831) is connected to the third rotating shaft (81) through a second transmission component (832).

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