Advancing type paperboard pushing and aligning device and paperboard advancing and pushing and aligning method

Abstract

The invention belongs to the technical field of full-automatic box nailing machines, and particularly discloses a marching type paperboard pushing and aligning device and a paperboard marching and pushing and aligning method.The device is composed of a folding part output belt, a front pushing claw assembly, a rear pushing claw assembly and a box nailing part input belt, and the method comprises the steps that an electric eye monitors the position of a paperboard in real time; when the front end of the paperboard is in contact with the front pushing claw, the front pushing claw is started, meanwhile, the rear pushing claw is quickly started to be pushed to the rear end of the paperboard, and the speed difference between the front pushing claw and the rear pushing claw is set, so that the front pushing claw and the rear pushing claw extrude and align the paperboard. By arranging the folding part output belt, the front pushing claw assembly, the rear pushing claw assembly and the box nailing part input belt, folded paperboards can be aligned without stopping in the advancing process of the paperboards, and the paperboard box nailing device has the advantages of being easy to operate, high in precision, high in speed and the like, and solves the industrial pain points.

Description

Technical Field

[0001] The invention relates to the technical field of full-automatic box nailing machines, and in particular to a traveling cardboard pushing device and a cardboard pushing method. Background Art

[0002] The fully automatic carton stitching machine is an essential equipment for carton post-production. It consists of a paper feeding unit, a folding unit, a box stitching unit, and a counting, stacking, and output unit. However, the accuracy of carton forming and the speed of alignment and sorting of the carton (folded cardboard) before entering the box stitching unit have always been technical bottlenecks that have plagued the industry: during the carton stitching and folding process, the cardboard often becomes misaligned after folding, such as Figure 1 As shown, therefore, the uneven cartons (folded cardboards) need to be straightened before entering the automatic carton stitching machine, such as Figure 2 As shown in the figure, if the cardboard is not aligned, the accuracy of carton forming will be greatly affected. However, the current technology requires the cardboard to stop and be aligned, and the speed of cardboard alignment is low, which greatly affects the overall work efficiency. Summary of the invention

[0003] The purpose of the present invention is to solve the technical problems existing in the background technology. To this end, a traveling cardboard pushing device and a cardboard traveling pushing method are provided.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is as follows: A cardboard advancing and aligning method comprises the following steps: Step S1: the front push claw assembly and the rear push claw assembly are both in a standby state; At this time, one of the N front push claws of the front push claw assembly is in a standby position: the front push claw is vertically arranged at the end of the output belt of the folding part, where N≥2; One of the M rear push claws of the rear push claw assembly is in a standby position: the rear push claw is parallel to the folding portion output belt, wherein M≥2; Step S2: After the cardboard is folded by the folding unit, the folded cardboard is transported forward by the output belt of the folding unit; Step S3: The electric eye monitors the position of the cardboard in real time. When the front end of the cardboard contacts the front push claw, the front push claw in the standby position starts, and at the same time, the rear push claw in the standby position starts quickly and pushes to the rear end of the cardboard. At this time, the rear push claw is perpendicular to the output belt of the folding part. Step S4: the front push claw and the rear push claw simultaneously convey the cardboard; Step S5: before the front end of the cardboard enters the input belt of the nail box part and the rear end of the cardboard is separated from the downward pressure belt of the output belt of the folding part, set the moving speed of the front push claw And the moving speed of the push claw ,in, < , the front push claw and the rear push claw squeeze and align the cardboard; Step S6: After the cardboard enters the input belt of the nail box part, set the moving speed of the front push claw , the moving speed of the rear push claw And the conveying speed of the nail box input belt ,in, = = ; Step S7: When the rear push claw is separated from the rear end of the paperboard, another rear push claw of the M rear push claws of the rear push claw assembly enters a standby position; Step S8: When the rear end of the paperboard is separated from the end of the folding portion output belt, another front push claw of the N front push claws of the front push claw assembly enters a standby position; Step S9: Wait for the next folded cardboard and repeat steps S2-S8.

[0005] The following is a technical solution further defined by the method of the present invention. When the front push claw and the rear push claw feed the paper at the same time, the output belt of the folding part continues to work, thereby continuously feeding the folded paperboard.

[0006] The following is a technical solution further defined by the method in the present invention, in which both the front push claw assembly and the rear push claw assembly move in a direction parallel to the folding portion output belt, and the belt support surface of the folding portion output belt is flush with the belt support surface of the nail box portion input belt.

[0007] A traveling cardboard pushing device is used to implement the above-mentioned cardboard traveling pushing method, comprising a folding part output belt, a front push claw assembly, a rear push claw assembly and a box nailing part input belt; The front push claw assembly includes a front transmission mechanism and N front push claws, wherein N ≥ 2, and the N front push claws are evenly distributed and installed on the transmission belt or transmission chain of the front transmission mechanism; The rear push claw assembly includes a rear transmission mechanism and M rear push claws, wherein M ≥ 2, and the M front push claws are evenly distributed and installed on the transmission belt or transmission chain of the rear transmission mechanism; When the folded paperboard is conveyed by the output belt of the folding part and enters the input belt of the nail box part, a front push claw and a rear push claw respectively abut against the front end and the rear end of the paperboard.

[0008] The following is a technical solution further defined in the device of the present invention, wherein the folding portion output belt comprises a folding portion pressing belt and a folding portion supporting belt, and the spacing between the folding portion pressing belt and the folding portion supporting belt is adapted to the thickness of the folded paperboard; The nail box part input belt includes a nail box part pressing belt and a nail box part supporting belt, and the distance between the nail box part pressing belt and the nail box part supporting belt is adapted to the thickness of the folded paperboard; The supporting surface of the folding portion supporting belt is flush with the supporting surface of the nail box portion supporting belt.

[0009] The following is a technical solution further defined by the device in the present invention, in which the conveying length of the folding portion pressing belt is smaller than the conveying length of the folding portion supporting belt.

[0010] The following is a technical solution further defined in the device of the present invention, the front push claw assembly includes a driving gear, a driven gear and a transmission chain, the driving gear and the driven gear are respectively meshed with the two ends of the transmission chain, and 2 or 4 front push claws are evenly distributed and installed on each transmission chain; The driving gear is fixedly mounted on the rotating shaft, the rotating shaft is rotatably mounted on the front mounting plate through a bearing, and the rotating shaft is transmission-connected to the output shaft of the first servo motor; The driven gear is rotatably mounted on the fixed shaft via a bearing, and the fixed shaft is fixedly mounted on the front mounting plate.

[0011] The following is a technical solution further defined in the device of the present invention: the front mounting plate is slidably mounted on the frame, the front pushing claw is configured to be L-shaped, and the front pushing claw assembly is located above or below the cardboard.

[0012] The following is a technical solution further defined in the device of the present invention, wherein the rear push claw assembly includes a driving gear, a driven gear and a transmission chain, wherein the driving gear and the driven gear are respectively meshed with two ends of the transmission chain, and 2 or 4 rear push claws are evenly distributed and installed on each transmission chain; The driving gear is fixedly mounted on the rotating shaft, the rotating shaft is rotatably mounted on the rear mounting plate through a bearing, and the rotating shaft is transmission-connected to the output shaft of the second servo motor; The driven gear is rotatably mounted on the fixed shaft via a bearing, and the fixed shaft is fixedly mounted on the rear mounting plate.

[0013] The following is a technical solution further defined by the device of the present invention: the rear mounting plate is slidably mounted on the frame, the rear push claw is configured to be L-shaped, and the rear push claw assembly is located above or below the cardboard.

[0014] Compared with the prior art, the present invention has the following technical effects: The present invention provides a folding part output belt, a front push claw assembly, a rear push claw assembly and a nail box part input belt, so that the folded cardboard can be aligned without stopping during the movement of the cardboard. It has the advantages of simple operation, high precision, high speed, etc., and solves the pain points of the industry.

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 It is a schematic diagram of the structure of the folded cardboard without being pushed evenly; Figure 2 It is a structural diagram of folded cardboard being pushed into alignment; Figure 3 It is a schematic diagram of the structure of the present invention; Figure 4 It is a structural schematic diagram of the present invention in a standby state; Figure 5 It is a structural schematic diagram of the present invention when the rear push claw is quickly started to push the cardboard; Figure 6 It is a structural schematic diagram of the cardboard entering the input belt of the nail box part in the present invention; Figure 7 It is a schematic structural diagram of the present invention when the rear push claw is about to separate from the rear end of the paperboard.

[0018] Figure numerals: A, folding section output belt; A1, folding section pressing belt; A2, folding section supporting belt; B, front push claw assembly; B1, front push claw; B2, front mounting plate; C, rear push claw assembly; C1, rear push claw; C2, rear mounting plate; D, nail box section input belt; D1, nail box section pressing belt; D2, nail box section supporting belt; E, cardboard. DETAILED DESCRIPTION

[0019] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present invention, so the present invention is not limited by the specific embodiments disclosed below.

[0020] In the description of the present invention, it is necessary to understand that the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] In the description of the present invention, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0022] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0023] like Figure 3 As shown, a traveling cardboard pushing device is provided, which is mainly composed of a folding part output belt A, a front pushing claw assembly B, a rear pushing claw assembly C and a nail box part input belt D, thereby realizing a cardboard traveling pushing method.

[0024] like Figure 4 As shown, the carton (folded cardboard E) moves from right to left. The front push claw assembly B or the rear push claw assembly C can be set to move according to the size of the carton, and the front push claw assembly B and the rear push claw assembly C can also be set to move forward and backward. Both the front push claw assembly B and the rear push claw assembly C move in a direction parallel to the folding part output belt A.

[0025] The front push claw assembly B includes a driving gear, a driven gear, a transmission chain (or a transmission belt) and N front push claws B1, wherein N ≥ 2, and the N front push claws B1 are evenly distributed and installed on the transmission chain (or transmission belt).

[0026] The driving gear and the driven gear are meshed with the two ends of the transmission chain respectively, and 2 or 4 front push claws B1 are evenly distributed and installed on each transmission chain. Figure 3 and 5 As shown, there are 2 transmission chains, 2 driving gears and 2 driven gears, thereby forming a symmetrical structure; 2 front push claws B1 are evenly distributed and installed on each transmission chain, and the front push claws B1 are set to be L-shaped. The specific length of the front push claws B1 can be specifically designed according to the machine size.

[0027] The driving gear is fixedly mounted on the rotating shaft, which is rotatably mounted on the front mounting plate B2 through a bearing, and the rotating shaft is transmission-connected to the output shaft of the first servo motor. The driven gear is rotatably mounted on the fixed shaft through a bearing, and the fixed shaft is fixedly mounted on the front mounting plate B2. Therefore, when the first servo motor is running, it drives the rotating shaft to rotate, thereby driving the driving gear to rotate, and then drives the transmission chain to move, so that the front push claw B1 on the transmission chain can move cyclically.

[0028] The front mounting plate B2 is slidably mounted on the frame (not shown in the figure), so that the front push claw assembly B can move forward and backward. The front push claw assembly B is located above or below the cardboard E, so the front push claw B1 can be located above or below the cardboard E.

[0029] The rear push claw assembly C includes a driving gear, a driven gear, a transmission chain (or a transmission belt) and M rear push claws C1, wherein M≥2, and the M rear push claws C1 are evenly distributed and installed on the transmission chain (or transmission belt).

[0030] The driving gear and the driven gear are meshed with the two ends of the transmission chain respectively, and 2 or 4 rear push claws C1 are evenly distributed and installed on each transmission chain. Figure 3 and 4 As shown, there are 2 transmission chains, 2 driving gears and 2 driven gears, thereby forming a symmetrical structure; 2 rear push claws C1 are evenly distributed and installed on each transmission chain, and the rear push claws C1 are set to be L-shaped. The specific length of the rear push claws C1 can be specifically designed according to the machine size.

[0031] The driving gear is fixedly mounted on the rotating shaft, which is rotatably mounted on the rear mounting plate C2 through a bearing, and the output shaft of the second servo motor is connected to the rotating shaft. The driven gear is rotatably mounted on the fixed shaft through a bearing, and the fixed shaft is fixedly mounted on the rear mounting plate C2. Therefore, when the second servo motor is running, it drives the rotating shaft to rotate, thereby driving the driving gear to rotate, and then drives the transmission chain to move, so that the rear push claw C1 on the transmission chain can move cyclically.

[0032] The rear mounting plate C2 is slidably mounted on the frame (not shown in the figure), so that the rear push claw assembly C can move forward and backward. The rear push claw assembly C is located above or below the cardboard E, so the rear push claw C1 can be located above or below the cardboard E.

[0033] The folding section output belt A includes a folding section pressing belt A1 and a folding section supporting belt A2, and the distance between the folding section pressing belt A1 and the folding section supporting belt A2 is adapted to the thickness of the folded paperboard E. The conveying length of the folding section pressing belt A1 is shorter than the conveying length of the folding section supporting belt A2.

[0034] The staple box input belt D comprises a staple box pressing belt D1 and a staple box supporting belt D2. The distance between the staple box pressing belt D1 and the staple box supporting belt D2 is adapted to the thickness of the cardboard E after folding.

[0035] The supporting surface of the folding portion supporting belt A2 is flush with the supporting surface of the nail box portion supporting belt D2.

[0036] A cardboard advancing and aligning method comprises the following steps: Step S1: The front push claw assembly B and the rear push claw assembly C are both in a standby state. Figure 4 As shown; At this time, one of the N front push claws B1 of the front push claw assembly B is in a standby position: the front push claw B1 is vertically arranged at the end of the folding portion output belt A, where N ≥ 2; One rear push claw C1 of the M rear push claws C1 of the rear push claw assembly C is in a standby position: the rear push claw C1 is parallel to the folding portion output belt A, wherein M≥2.

[0037] Step S2: After the cardboard E is folded by the folding unit, the folded cardboard E is transported forward by the output belt A of the folding unit.

[0038] Step S3: The electric eye monitors the position of the cardboard E in real time. Figure 5 As shown, when the front end of the cardboard E contacts the front push claw B1, the front push claw B1 in the standby position starts, and at the same time, the rear push claw C1 in the standby position starts quickly and pushes to the rear end of the cardboard E. At this time, the rear push claw C1 is perpendicular to the folding section output belt A.

[0039] Step S4: the front push claw B1 and the rear push claw C1 start to convey the cardboard E at the same time. The folding section output belt A continues to operate, thereby continuously conveying the folded cardboard E.

[0040] Step S5: Figure 6 As shown, before the front end of the cardboard E enters the input belt D of the nail box part and the rear end of the cardboard E is separated from the downward pressure belt of the output belt A of the folding part, the moving speed of the front push claw B1 is set And the moving speed of the rear push claw C1 ,in, < The front push claw B1 and the rear push claw C1 squeeze and align the cardboard E. By adjusting the moving speed of the front push claw B1 And the moving speed of the rear push claw C1 The speed difference between them is used to realize the squeezing degree of the two push claws on the cardboard E, so as to realize the cardboard E from Figure 1 to Figure 2 Neat changes.

[0041] Step S6: After the cardboard E enters the input belt D of the nail box part, the cardboard E is aligned and the moving speed of the front push claw B1 is set. , the moving speed of the rear push claw C1 And the conveying speed of the nail box input belt D ,in, = = ; Step S7: Figure 7 As shown, when the rear push claw C1 is separated from the rear end of the paperboard E, another rear push claw C1 of the M rear push claws C1 of the rear push claw assembly C enters the standby position; Step S8: When the rear end of the paperboard E is separated from the end of the folding portion output belt A, another front push claw B1 of the N front push claws B1 of the front push claw assembly B enters a standby position; Step S9: Wait for the next folded cardboard E and repeat steps S2-S8. This cycle is used to achieve continuous production.

[0042] The above is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Any technician familiar with the art can make many possible changes and modifications to the technical solution of the present invention by using the above disclosed methods and technical contents without departing from the scope of the technical solution of the present invention, or modify it into an equivalent embodiment of equivalent changes. Therefore, all equivalent changes made according to the shape, structure and principle of the present invention without departing from the content of the technical solution of the present invention should be included in the protection scope of the present invention.

Claims

1. A method for pushing and aligning cardboard, characterized in that: The following steps are involved: Step S1: the front push claw assembly and the rear push claw assembly are both in a standby state; At this time, one of the N front push claws of the front push claw assembly is in a standby position: the front push claw is vertically arranged at the end of the output belt of the folding part, where N≥2; One of the M rear push claws of the rear push claw assembly is in a standby position: the rear push claw is parallel to the folding portion output belt, wherein M≥2; Step S2: After the cardboard is folded by the folding unit, the folded cardboard is transported forward by the output belt of the folding unit; Step S3: The electric eye monitors the position of the cardboard in real time. When the front end of the cardboard contacts the front push claw, the front push claw in the standby position starts, and at the same time, the rear push claw in the standby position starts quickly and pushes to the rear end of the cardboard. At this time, the rear push claw is perpendicular to the output belt of the folding part. Step S4: the front push claw and the rear push claw simultaneously convey the cardboard; Step S5: before the front end of the cardboard enters the input belt of the nail box part and the rear end of the cardboard is separated from the downward pressure belt of the output belt of the folding part, set the moving speed of the front push claw And the moving speed of the push claw ,in, < , the front push claw and the rear push claw squeeze and align the cardboard; Step S6: After the cardboard enters the input belt of the nail box, set the moving speed of the front push claw , the moving speed of the rear push claw And the conveying speed of the nail box input belt ,in, = = ; Step S7: When the rear push claw is separated from the rear end of the paperboard, another rear push claw of the M rear push claws of the rear push claw assembly enters a standby position; Step S8: When the rear end of the paperboard is separated from the end of the folding portion output belt, another front push claw of the N front push claws of the front push claw assembly enters a standby position; Step S9: Wait for the next folded cardboard and repeat steps S2-S8.

2. A cardboard advancing and aligning method as claimed in claim 1, characterized in that: When the front push claw and the rear push claw are feeding the paper at the same time, the output belt of the folding section keeps working, thereby continuously feeding the folded paperboard.

3. A cardboard advancing and aligning method as claimed in claim 1, characterized in that: Both the front push claw assembly and the rear push claw assembly move in a direction parallel to the output belt of the folding portion, and the belt support surface of the output belt of the folding portion is flush with the belt support surface of the input belt of the nail box portion.

4. A traveling cardboard pushing device, used to implement a cardboard traveling pushing method according to any one of claims 1 to 3, characterized in that: It includes a folding part output belt, a front push claw assembly, a rear push claw assembly and a nail box part input belt; The front push claw assembly includes a front transmission mechanism and N front push claws, wherein N ≥ 2, and the N front push claws are evenly distributed and installed on the transmission belt or transmission chain of the front transmission mechanism; The rear push claw assembly includes a rear transmission mechanism and M rear push claws, wherein M ≥ 2, and the M front push claws are evenly distributed and installed on the transmission belt or transmission chain of the rear transmission mechanism; When the folded paperboard is conveyed by the output belt of the folding part and enters the input belt of the nail box part, a front push claw and a rear push claw respectively abut against the front end and the rear end of the paperboard.

5. A traveling cardboard pushing device as claimed in claim 4, characterized in that: The folding part output belt comprises a folding part pressing belt and a folding part supporting belt, and the distance between the folding part pressing belt and the folding part supporting belt is adapted to the thickness of the folded paperboard; The nail box part input belt includes a nail box part pressing belt and a nail box part supporting belt, and the distance between the nail box part pressing belt and the nail box part supporting belt is adapted to the thickness of the folded paperboard; The supporting surface of the folding portion supporting belt is flush with the supporting surface of the nail box portion supporting belt.

6. A traveling cardboard pushing device as claimed in claim 5, characterized in that: The conveying length of the folding portion pressing belt is shorter than the conveying length of the folding portion supporting belt.

7. A traveling cardboard pushing device as claimed in claim 4, characterized in that: The front push claw assembly includes a driving gear, a driven gear and a transmission chain. The driving gear and the driven gear are respectively meshed with two ends of the transmission chain. Two or four front push claws are evenly distributed and installed on each transmission chain. The driving gear is fixedly mounted on the rotating shaft, the rotating shaft is rotatably mounted on the front mounting plate through a bearing, and the rotating shaft is transmission-connected to the output shaft of the first servo motor; The driven gear is rotatably mounted on the fixed shaft via a bearing, and the fixed shaft is fixedly mounted on the front mounting plate.

8. A traveling cardboard pushing device as claimed in claim 7, characterized in that: The front mounting plate is slidably mounted on the frame, the front pushing claw is arranged in an L shape, and the front pushing claw assembly is located above or below the paperboard.

9. A traveling cardboard pushing device as claimed in claim 4, characterized in that: The rear push claw assembly includes a driving gear, a driven gear and a transmission chain. The driving gear and the driven gear are respectively meshed with two ends of the transmission chain. Two or four rear push claws are evenly distributed and installed on each transmission chain. The driving gear is fixedly mounted on the rotating shaft, the rotating shaft is rotatably mounted on the rear mounting plate through a bearing, and the rotating shaft is transmission-connected to the output shaft of the second servo motor; The driven gear is rotatably mounted on the fixed shaft via a bearing, and the fixed shaft is fixedly mounted on the rear mounting plate.

10. A traveling cardboard pushing device as claimed in claim 9, characterized in that: The rear mounting plate is slidably mounted on the frame, the rear pushing claw is arranged in an L shape, and the rear pushing claw assembly is located above or below the paperboard.

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