CN221253264U - Limiting device for anti-falling bilateral chain electric paper threading mechanism - Google Patents

Abstract

The utility model belongs to the technical field of printing machinery, and particularly discloses a printing machine comprising: the limiting device for the anti-falling bilateral chain electric paper threading mechanism comprises a frame, a chain, a mounting seat, a limiting switch and a limiting shaft, wherein a plurality of chain wheels are uniformly arranged on the frame, one of the chain wheels is provided with the mounting seat on the side edge, the mounting seat is provided with the limiting switch, the limiting switch is provided with a button, the end part of the button is provided with a rotating groove, and the rotating groove is rotationally connected with a roller; the side of the chain is provided with a roller, the roller is provided with a connecting shaft, the connecting shaft penetrates through a pin hole of the chain, the end part of the connecting shaft is provided with a connecting hole, and a cotter pin fixing limiting shaft is inserted into the connecting hole; in the use, the chain passes through external equipment drive for the chain drives spacing axle and removes, and when spacing axle moved the position of gyro wheel, spacing axle just can extrude the gyro wheel, utilizes gyro wheel extrusion button control limit switch simultaneously.

Description

Limiting device for anti-falling bilateral chain electric paper threading mechanism

Technical Field

The utility model relates to the technical field of printing machinery, in particular to a limiting device for an anti-falling bilateral chain electric paper penetrating mechanism.

Background

The main function of the paper receiving machine is that when a printing host machine is about to run out in the printing process, as one roll paper is about to run out, another roll paper needs to be replaced, and the exchange from one roll paper to another roll paper, namely automatic paper receiving, is realized under the condition that the printing host machine is not stopped. And a constant feed tension is ensured during this exchange.

In the use process of the anti-falling double-side chain electric paper threading mechanism, as the paper threading sleeve device is a whole and has a certain width, the position angle of paper in the running process can change to a certain extent, if the paper threading sleeve device is positioned at any position, interference with the running line of the paper is possible (in the single-side paper threading mechanism, the paper threading rod can be folded and can be positioned at a place where the edge does not touch the paper), so that the paper threading sleeve device is positioned at a position least likely to interfere with the paper becomes necessary.

Disclosure of utility model

The utility model aims to provide a limiting device for an anti-falling bilateral chain electric paper threading mechanism, so as to solve the problems in the background technology.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the limiting device for the anti-falling bilateral chain electric paper threading mechanism comprises a frame, a chain, mounting seats, limiting switches and limiting shafts, wherein a plurality of chain wheels are uniformly arranged on the frame, the chain is wound on one chain wheel, one of the side edges of the chain wheel is provided with the mounting seat, the mounting seat is provided with the limiting switches, the limiting switches are provided with buttons, the buttons are cylindrical, the end parts of the buttons are provided with rotating grooves, and the rotating grooves are rotationally connected with idler wheels; the side of the chain is provided with a roller, the roller is provided with a connecting shaft, the connecting shaft penetrates through a pin hole of the chain, the end part of the connecting shaft is provided with a connecting hole, and a cotter pin fixing limiting shaft is inserted into the connecting hole; in the use process, the chain is driven by external equipment, so that the chain drives the limiting shaft to move, when the limiting shaft moves to the position of the roller, the limiting shaft can squeeze the roller, and meanwhile, the roller squeezing button is used for controlling the limiting switch; the cotter pin can be detached from the connecting hole on the connecting shaft, and then the limiting shaft can be detached, so that the later disassembly, assembly and maintenance are facilitated.

Preferably, the mounting seat is provided with a long groove and a screw hole, the long groove is fixed on the frame through a first bolt, and the arranged long groove can be used for conveniently adjusting the distance between the limit switch and the chain so as to ensure that the limit shaft can indeed press the roller on the limit switch.

Preferably, the side edge of the limit switch is provided with a locking hole, and the locking hole is aligned with the screw hole and fixed through a second bolt, so that the detachable installation of the limit switch is realized, and the later disassembly and maintenance are facilitated.

Preferably, the limit switch is electrically connected with the relay of the machine, the relay of the machine is controlled by the limit switch, and the relay is switched on by pressing a button of the limit switch, so that the machine can normally operate and the whole paper receiving process is realized.

Preferably, the plurality of limit shafts are arranged in a compact manner, and because the motor runs with inertia and reaction relation of human operation, when one limit shaft presses the roller on the limit switch, the roller cannot be stopped at the position immediately, so that the paper threading sleeve device can be positioned in an absolute safety range by arranging the plurality of limit shafts.

Preferably, the limiting shaft is circular, and the circular limiting shaft is more suitable for being matched with the roller, so that friction is reduced.

Compared with the prior art, the utility model has the beneficial effects that:

According to the utility model, the limiting shaft is arranged on the chain, the limiting shaft is driven to move through the chain, when the limiting shaft moves to the position of the roller, the limiting shaft can press the button on the limiting switch, the switch of the machine relay is controlled by pressing the button of the limiting switch, the safety is effectively improved, and the running line of paper and the paper penetrating sleeve device are absolutely not interfered.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

Fig. 2 is a schematic diagram of an explosive structure according to the present utility model.

In the figure: 1. a frame; 2. a sprocket; 3. a chain; 4. a mounting base; 401. a long groove; 402. a screw hole; 5. a limit switch; 501. a button; 5011. a rotating groove; 5012. a roller; 502. a locking hole; 6. a limiting shaft; 601. a connecting shaft; 6011. a connection hole; 7. a cotter pin; 9. a first bolt; 10. and a second bolt.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

Referring to fig. 1-2, the present utility model provides a technical solution: the utility model provides a stop device for electronic paper mechanism of bilateral chain that drops prevention, includes frame 1, chain 3, mount pad 4, limit switch 5 and spacing axle 6, evenly be provided with a plurality of sprockets 2 on the frame 1, the winding of chain 3 is on sprocket 2, and one of them sprocket 2 side is provided with mount pad 4, is provided with limit switch 5 on the mount pad 4, is provided with button 501 on the limit switch 5, and button 501 is cylindrical, and the rotation groove 5011 has been seted up to button 501 tip, and the rotation groove 5011 internal rotation is connected with gyro wheel 5012;

The side of the chain 3 is provided with a roller 5012, the roller 5012 is provided with a connecting shaft 601, the connecting shaft 601 penetrates through a pin hole of the chain 3, the end part of the connecting shaft 601 is provided with a connecting hole 6011, and a cotter pin 7 is inserted into the connecting hole 6011 to fix a limiting shaft 6;

In the use process, the chain 3 is driven by external equipment, so that the chain 3 drives the limiting shaft 6 to move, when the limiting shaft 6 moves to the position of the roller 5012, the limiting shaft 6 can squeeze the roller 5012, and meanwhile, the roller 5012 is used for squeezing the button 501 to control the limiting switch 5; the cotter pin 7 can be detached from the connecting hole 6011 on the connecting shaft 601, and then the limiting shaft 6 can be detached for later disassembly and maintenance.

Further, the mounting seat 4 is provided with a long groove 401 and a screw hole 402, the first bolt 9 is arranged in the long groove 401, the long groove 401 is fixed on the frame 1 through the first bolt 9, and the arranged long groove 401 can be convenient for adjusting the distance from the limit switch 5 to the chain 3 so as to ensure that the limit shaft 6 can firmly press the roller 5012 on the limit switch 5.

Further, the side edge of the limit switch 5 is provided with a locking hole 502, a second bolt 10 is arranged in the locking hole 502, and the locking hole 502 is aligned with the screw hole 402 and fixed through the second bolt 10, so that the detachable installation of the limit switch 5 is realized, and the later disassembly and maintenance are facilitated.

Further, the limit switch 5 is electrically connected with the relay of the machine, the relay of the machine is controlled by the limit switch 5, and the relay is connected by pressing the button 501 of the limit switch 5, so that the machine can normally operate and the whole paper receiving process can be realized.

Further, the plurality of limit shafts 6 are arranged in a compact manner, and because the motor has a reaction relationship between inertia and human operation, when one limit shaft 6 presses the roller 5012 on the limit switch 5, the roller 5012 cannot be stopped at the position immediately, so that the paper threading sleeve device can be positioned in an absolute safety range by arranging a plurality of limit shafts, namely eight limit shafts.

Further, the limiting shaft 6 is circular, and the circular limiting shaft 6 is more suitable for being matched with the roller 5012, so that friction is reduced.

Working principle: when the limiting shaft 6 leaves the roller 5012 on the limiting switch 5, the relay is disconnected, the indicator light on the operation panel is on, the large arm of the machine cannot rotate at the moment, the whole machine operation and paper receiving process cannot be completed, when the chain 3 moves, the chain 3 drives the limiting shaft 6 to move, when the limiting shaft 6 extrudes the roller 5012 on the limiting switch 5, the roller 50121 rotates in the rotating groove 5011, meanwhile, the roller 5012 receives pressure, the button 501 can be extruded, the limiting switch 5 controls the relay to be connected, the indicator light on the operation panel is off, and the machine can normally operate and the whole paper receiving process at the moment.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. A stop device for electronic paper mechanism of wearing of bilateral chain of anti-drop, its characterized in that: the novel chain comprises a frame (1), a chain (3), a mounting seat (4), a limit switch (5) and a limit shaft (6), wherein a plurality of chain wheels (2) are uniformly arranged on the frame (1), the chain (3) is wound on the chain wheels (2), one of the chain wheels (2) is provided with the mounting seat (4), the mounting seat (4) is provided with the limit switch (5), the limit switch (5) is provided with a button (501), the button (501) is cylindrical, a rotating groove (5011) is formed in the end part of the button (501), and the rotating groove (5011) is rotationally connected with a roller (5012); the chain is characterized in that rollers (5012) are arranged on the side edges of the chain (3), connecting shafts (601) are arranged on the rollers (5012), the connecting shafts (601) penetrate through pin holes of the chain (3), connecting holes (6011) are formed in the end portions of the connecting shafts (601), and cotter pins (7) are inserted into the connecting holes (6011) to fix limiting shafts (6).

2. The limiting device for the anti-falling bilateral chain electric paper threading mechanism of claim 1, wherein the limiting device comprises: the mounting seat (4) is provided with a long groove (401) and a screw hole (402), a first bolt (9) is arranged in the long groove (401), and the long groove (401) is fixed on the frame (1) through the first bolt (9).

3. The limiting device for the anti-falling bilateral chain electric paper threading mechanism of claim 1, wherein the limiting device comprises: the side of the limit switch (5) is provided with a locking hole (502), a second bolt (10) is arranged in the locking hole (502), and the locking hole (502) is aligned with the screw hole (402) and fixed through the second bolt (10).

4. The limiting device for the anti-falling bilateral chain electric paper threading mechanism of claim 1, wherein the limiting device comprises: the limit switch (5) is electrically connected with a relay of the machine.

5. The limiting device for the anti-falling bilateral chain electric paper threading mechanism of claim 1, wherein the limiting device comprises: the limiting shafts (6) are arranged in a plurality, and the limiting shafts (6) are compactly arranged.

6. The limiting device for the anti-falling bilateral chain electric paper threading mechanism of claim 1, wherein the limiting device comprises: the limiting shaft (6) is round.