Automatic waste paper discharging mechanism on folding machine

Abstract

An automatic waste paper discharging mechanism on a folding machine comprises a machine table, a conveying assembly, a laser sensor and a paper discharging assembly. The paper discharging assembly comprises a driving air cylinder, a push-pull rod, a connecting rod, a swing plate and a stop rod. The end, away from the connecting rod, of the swing plate is rotationally connected with the machine table, one end of the blocking rod is fixedly connected with a rotating point on the swing plate, the other end of the blocking rod is rotationally connected with the machine table, and a plurality of lay gauges are arranged on the side, facing the conveying assembly, of the blocking rod at intervals. According to the mechanism, the laser sensor is used for detecting and judging whether paper is wrongly folded or bent in the folding process or not, and when the phenomenon occurs, the driving air cylinder drives the blocking rod to swing, so that a gap through which the paper can pass is formed between the lay gauge and the paper conveying belt, and the paper can pass through the gap. The whole process does not need manual participation, manpower resources are saved, the situation that paper discharging is carried out due to the fact that the waste paper appears is avoided, and the folding efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of paper feeding technology for folding machines, and in particular to an automatic waste paper discharge mechanism for folding machines. Background Technology

[0002] A folding machine is a modern printing device that emerged alongside the modern printing industry. It is an instrument used to fold papers of various sizes and thicknesses within a design scope. For example, Chinese patent CN201921769783.4 discloses an automatic paper folding machine, which includes a main frame, a paper feeding guide mechanism mounted on the main frame, a horizontal folding mechanism, and a vertical folding mechanism. The paper feeding guide mechanism transports the paper to the horizontal folding mechanism, which performs a horizontal fold, and the vertical folding mechanism performs a vertical fold after the horizontal fold. This folding machine requires multiple folds, and during the folding process, paper may be folded incorrectly or bent. Since the mechanism cannot detect and automatically discharge waste paper, manual paper discharge is required, significantly reducing folding efficiency. Utility Model Content

[0003] In view of this, the present invention provides an automatic waste paper discharge mechanism for a folding machine to solve the above problems.

[0004] An automatic waste paper discharge mechanism for a folding machine includes a machine base, a transport component mounted on the machine base, a laser sensor at the input end of the transport component, and a paper discharge component at the output end of the transport component. The paper discharge component includes a drive cylinder, a push-pull rod at the output end of the drive cylinder, a connecting rod connected to the push-pull rod, a swing plate at one end of the connecting rod, and a stop bar fixedly mounted on the swing plate. The end of the swing plate away from the connecting rod is rotatably connected to the machine base. One end of the stop bar is fixedly connected to a rotation point on the swing plate, and the other end is rotatably connected to the machine base. A plurality of stop gauges are spaced apart on the side of the stop bar facing the transport component.

[0005] Furthermore, the transport component includes a plurality of paper feed belts arranged at intervals, and a plurality of pressure rollers correspondingly disposed on the paper feed belts.

[0006] Furthermore, the output direction of the drive cylinder is perpendicular to the length direction of the stop lever.

[0007] Furthermore, the push-pull rod and the connecting rod are connected by a joint bearing, and a ball bearing is provided at one end of the connecting rod near the push-pull rod, which is engaged in the joint bearing.

[0008] Furthermore, the swing plate is connected to the connecting rod via a spherical bearing, and the end of the connecting rod away from the push-pull rod has a nut.

[0009] Compared with the prior art, the automatic waste paper discharge mechanism on the folding machine provided by this utility model uses the laser sensor to detect and determine whether the paper has been folded incorrectly or bent during the folding process. When this phenomenon occurs, the drive cylinder drives and moves the stop bar to swing, thereby creating a gap between the stop bar and the paper conveyor belt that allows the paper to pass through. The waste paper is then discharged by the paper conveyor belt. The entire process requires no manual intervention, saving manpower and avoiding machine stoppages due to waste paper, thus improving folding efficiency. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the automatic waste paper discharge mechanism on the folding machine provided by this utility model.

[0011] Figure 2 for Figure 1 Enlarged diagram of point A in the middle. Detailed Implementation

[0012] The specific embodiments of this utility model are described in further detail below. It should be understood that the description of the embodiments of this utility model herein is not intended to limit the scope of protection of this utility model.

[0013] like Figure 1 The diagram shows the structure of the automatic waste paper discharge mechanism on the folding machine provided by this utility model. The automatic waste paper discharge mechanism on the folding machine includes a machine base 10, a transport component 20 disposed on the machine base 10, a laser sensor 30 disposed at the input end of the transport component 20, and a paper discharge component 40 disposed at the output end of the transport component 20. It is conceivable that the automatic waste paper discharge mechanism on the folding machine also includes other functional modules, such as a power supply module, a PLC control module, a drive module, etc., which are technologies known to those skilled in the art and will not be described in detail here.

[0014] The machine base 10 is used to support various components so that they can cooperate in various ways to automatically complete the paper discharge operation of waste materials.

[0015] The transport component 20 includes a plurality of paper feed belts 21 arranged at intervals, and a plurality of pressure rollers 22 correspondingly disposed on the paper feed belts 21.

[0016] The paper feed belt 21 is controlled by a drive module to move at a constant speed. The pressure roller 22 makes gap contact with the surface of the paper feed belt 21, thereby pressing the paper so that the paper can stick tightly to the surface of the paper feed belt 21.

[0017] The output direction of the laser sensor 30 is perpendicular to the plane of the paper during transport. The laser sensor 30 emits a laser beam onto the surface of the paper and receives the reflected signal. Since the transport speed of the paper is known, the length of the paper can be determined by the time difference between the reflected signals from both ends, thus indicating whether the paper has been incorrectly folded or bent during the folding process. The laser sensor 30 itself is existing technology, and its working principle and calculation process will not be elaborated here.

[0018] Please see Figure 2 The paper discharge assembly 40 includes a drive cylinder 41, a push-pull rod 42 disposed at the output end of the drive cylinder 41, a connecting rod 43 connected to the push-pull rod 42, a swing plate 44 disposed at one end of the connecting rod 43, and a stop rod 45 fixedly disposed on the swing plate 44.

[0019] The output direction of the drive cylinder 41 is perpendicular to the length direction of the stop rod 45. The drive cylinder 41 can drive the push-pull rod 42 to reciprocate, so as to pull the connecting rod 43, thereby causing the swing plate 44 to swing.

[0020] One end of the connecting rod 43 is connected to the push-pull rod 42 via a spherical bearing. Specifically, a ball bearing is provided at the end of the connecting rod 43 near the push-pull rod 42, and the ball bearing is engaged in the spherical bearing to connect the connecting rod 43 to the spherical bearing. The spherical bearing is a special type of spherical sliding bearing, whose core structure consists of an inner spherical surface and an outer spherical surface, enabling rotation and swinging motion at any angle. It is existing technology and will not be described in detail here. The other end of the connecting rod 43 passes through the swing plate 44 and is connected via a spherical bearing, so that both ends of the connecting rod 43 have spherical bearings to enable rotation and swinging motion in multiple directions. The end of the connecting rod 43 that passes through the swing plate 44 has a nut to fix the connecting rod 43 to the spherical bearing.

[0021] The end of the swing plate 44 away from the connecting rod 43 is rotatably connected to the machine base 10. Thus, when the drive cylinder 41 drives the push-pull rod 42 to reciprocate, the connecting rod 43 moves along with the push-pull rod 42 and pulls the swing plate 44 to swing around its rotation point.

[0022] One end of the stop lever 45 is fixedly connected to the rotation point on the swing plate 44, and the other end is rotatably connected to the machine base 10. Thus, when the swing plate 44 performs a swinging operation, the stop lever 45 itself will follow the swing plate 44 in its swinging operation. Since both ends of the connecting rod 43 have joint bearings to achieve rotation and swinging motion in multiple directions, the interference between the linear motion of the push-pull rod 42 and the circular swinging motion of one end of the swing plate 44 is eliminated, and they will not affect each other's movements.

[0023] The baffle 45 has several baffles 46 spaced apart on the side facing the paper conveyor belt 21. In the initial state, the end of the baffle 46 away from the baffle 45 abuts against the paper conveyor belt 21, thus blocking the paper transported by the transport component 20. When the laser sensor 30 detects that the length of the paper does not meet the set standard, it is determined that the paper has been folded incorrectly or bent during the folding process. The drive cylinder 41 drives and moves the baffle 45 to swing, thereby creating a gap between the baffle 46 and the paper conveyor belt 21 that allows the paper to pass through, and the paper conveyor belt 21 discharges the waste paper.

[0024] Compared with the prior art, the automatic waste paper discharge mechanism on the folding machine provided by this utility model uses the laser sensor 30 to detect and determine whether the paper has been folded incorrectly or bent during the folding process. When this phenomenon occurs, the drive cylinder 41 drives and moves the stop bar 45 to swing, thereby creating a gap between the stop gauge 46 and the paper conveyor belt 21 that allows the paper to pass through. The waste paper is then discharged by the paper conveyor belt 21. The entire process requires no manual intervention, saving manpower and avoiding machine stoppages due to waste paper, thus improving folding efficiency.

[0025] The above are merely preferred embodiments of the present utility model and are not intended to limit the scope of protection of the present utility model. Any modifications, equivalent substitutions or improvements within the spirit of the present utility model are covered within the scope of the claims of the present utility model.

Claims

1. An automatic waste sheet discharging mechanism on a folding machine, characterized in that: The automatic waste paper discharge mechanism on the folding machine includes a machine base, a transport component mounted on the machine base, a laser sensor mounted at the input end of the transport component, and a paper discharge component mounted at the output end of the transport component. The paper discharge component includes a drive cylinder, a push-pull rod mounted at the output end of the drive cylinder, a connecting rod connected to the push-pull rod, a swing plate mounted at one end of the connecting rod, and a stop bar fixedly mounted on the swing plate. The end of the swing plate away from the connecting rod is rotatably connected to the machine base. One end of the stop bar is fixedly connected to a rotation point on the swing plate, and the other end is rotatably connected to the machine base. Several stop gauges are arranged at intervals on the side of the stop bar facing the transport component.

2. The automatic waste sheet ejecting mechanism on a folding machine according to claim 1, characterized in that: The transport component includes several paper feed belts arranged at intervals, and several pressure rollers correspondingly disposed on the paper feed belts.

3. The automatic waste sheet ejecting mechanism in a folding machine according to claim 1, characterized in that: The output direction of the drive cylinder is perpendicular to the length direction of the stop lever.

4. The automatic waste sheet ejecting mechanism in a folding machine according to claim 1, characterized in that: The push-pull rod and the connecting rod are connected by a joint bearing. The end of the connecting rod near the push-pull rod is provided with a ball bearing, which is engaged in the joint bearing.

5. The automatic waste sheet ejecting mechanism in a folding machine according to claim 1, characterized in that: The swing plate is connected to the connecting rod via a joint bearing, and the end of the connecting rod away from the push-pull rod has a nut.

Images