阅读说明：本技术 打印设备喷头防撞装置 (Printing equipment shower nozzle buffer stop ) 是由 贾志梅 王庆波 王晶 于 2021-03-31 设计创作，主要内容包括：本发明公开了一种打印设备喷头防撞装置,具体包括防撞固定角件、防撞支座、摆锤固定座、摆锤、光电开关、防撞开关挡片、摆锤转轴和复位弹簧。在打印设备运行过程中,当打印设备喷头与障碍物发生碰撞时摆锤位置发生偏移,摆锤上的防撞开关挡片移动触发光电开关发出停止信号引起停车,以防止打印设备喷头触碰到障碍物,可以有效预防打印过程中由于打印介质的不平整导致的打印设备喷头损坏。本发明中的防撞装置结构简单,摆锤的重心平衡,稳定性高,灵敏度高,适合低速及中高速打印,可以有效预防打印过程中由于打印介质的不平整导致的打印设备喷头损坏。(The invention discloses an anti-collision device for a spray head of printing equipment, which specifically comprises an anti-collision fixing corner piece, an anti-collision support, a pendulum bob fixing seat, a pendulum bob, a photoelectric switch, an anti-collision switch separation blade, a pendulum bob rotating shaft and a reset spring. In the operation process of the printing equipment, when the spray head of the printing equipment collides with an obstacle, the pendulum body shifts, the anti-collision switch separation blade on the pendulum body moves to trigger the photoelectric switch to send a stop signal to stop, so that the spray head of the printing equipment is prevented from touching the obstacle, and the spray head of the printing equipment, which is caused by the unevenness of a printing medium, can be effectively prevented from being damaged in the printing process. The anti-collision device disclosed by the invention is simple in structure, the gravity center of the pendulum bob is balanced, the stability is high, the sensitivity is high, the anti-collision device is suitable for low-speed and medium-high-speed printing, and the damage to a printing equipment sprayer caused by the unevenness of a printing medium in the printing process can be effectively prevented.)

1. The printing equipment nozzle anti-collision device is characterized in that the printing equipment nozzle anti-collision device (100) consists of an anti-collision fixing corner piece (1), an anti-collision support (2), a pendulum fixing seat (3), a pendulum (4), a photoelectric switch (5), an anti-collision switch blocking piece (6), a pendulum rotating shaft (7) and a reset spring (8); the pendulum bob rotating shaft (7) is positioned at the midpoint of the pendulum bob (4), the weights of the upper part and the lower part of the pendulum bob (4) of the pendulum bob rotating shaft (7) are completely consistent, and the gravity center of the pendulum bob (4) is positioned at the midpoint.

2. The printing equipment nozzle anticollision device according to claim 1, characterized in that the anticollision fixing corner fitting (1) is fixed on the printing equipment, the pendulum fixing base (3) is connected with the printing equipment nozzle (200), the pendulum (4) is connected on the anticollision support (2) through the pendulum fixing base (3), and the return spring (8) is connected with the pendulum (4) and the anticollision support (2).

3. The printing equipment nozzle anticollision device according to claim 1, characterized in that the anticollision switch catch (6) is L-shaped and fixed on the pendulum (4) between the pendulum (4) and the photoelectric switch (5).

4. The anti-collision device for the spray head of the printing equipment according to claim 1, wherein the photoelectric switch (5) is of a U-shaped groove structure.

5. The printing equipment nozzle collision prevention device according to claim 1, wherein the number of the printing equipment nozzle collision prevention devices (100) is 2, and the 2 printing equipment nozzle collision prevention devices are respectively positioned at two sides of the printing equipment nozzle (200).

6. The printing device nozzle collision avoidance device of claim 1, wherein the pendulum (4) is perpendicular to the printing surface when the pendulum (4) is in the initial position.

7. The printing equipment nozzle collision avoidance device according to claim 1, wherein when the pendulum (4) is in the initial position, the distance from the bottom edge of the pendulum (4) to the printing surface is 0.1-1.0 mm lower than the distance from the printing equipment nozzle (200) to the printing surface.

8. Printing device nozzle bump guard according to claim 1, characterized in that the maximum offset distance of the pendulum (4) is smaller than the distance of the pendulum (4) from the printing device nozzle (200); the width of the pendulum (4) is larger than the width of a printing device nozzle (200).

9. Printing device head bump guard according to claim 1, characterised in that the pendulum (4) is a cuboid.

10. Printing device nozzle bump guard according to claim 1, characterized in that the pendulum (4) is a solid structure or a hollow structure, preferably the pendulum (4) is a hollow structure.

Technical Field

The invention relates to the technical field of printing, in particular to a nozzle anti-collision device of printing equipment.

Background

The ink-jet printer is characterized in that a printing stock is placed on a printing plane, ink is printed on the printing stock through a spray head, the distance between the spray head and the printing stock is very close, and if the printing stock is wrinkled or has protrusions, the spray head is easy to impact in the printing process, so that the spray head is damaged or even scrapped.

CN205498342 discloses an anti-collision nozzle of an inkjet printer, which is based on the principle that a contact switch is installed on the side edge of the nozzle, the contact switch measures the distance between a plurality of test points of a printing platform, and the safety position of the nozzle is determined according to the maximum value of the measured distance. It adopts point location measurement, can not measure whether whole plane is safe.

CN204278759 discloses an anti-collision aligning device for universal printers and UV printers, wherein an infrared emission sensor is mounted on the anti-collision device, and if the sensor detects a bulge, an alarm is sounded to cause shutdown. But infrared emission sensor cost is higher, to can not sheltering from the product, infrared sensor can not play a role to infrared sensor is higher to the air quality requirement, and dust etc. in the air arouse wrong report police very easily.

Therefore, a collision-prevention device for a nozzle of a printing device, which has a simple structure, low cost and high sensitivity, is needed.

Disclosure of Invention

The invention aims to provide an anti-collision device for a spray head of printing equipment, which has the advantages of simple structure, low cost, small occupied space and high stability.

According to the anti-collision device for the spray head of the printing equipment, when the spray head of the printing equipment collides with an obstacle in the operation process of the printing equipment, the position of the pendulum bob deviates, and the anti-collision switch separation blade on the pendulum bob moves to trigger the photoelectric switch to send a stop signal to stop so as to prevent the spray head of the printing equipment from touching the obstacle, so that the damage to the spray head of the printing equipment caused by the unevenness of a printing medium in the printing process can be effectively prevented.

In order to achieve the purpose, the technical scheme of the invention is as follows:

the utility model provides a printing equipment shower nozzle buffer stop, printing equipment shower nozzle buffer stop comprises fixed corner fittings of anticollision, anticollision support, pendulum fixing base, pendulum, photoelectric switch, crashproof switch separation blade, pendulum pivot and reset spring. The pendulum bob rotating shaft is positioned at the midpoint of the pendulum bob, the weights of the upper and lower pendulum bob parts of the pendulum bob rotating shaft are completely consistent, and the center of gravity of the pendulum bob is positioned at the midpoint.

The angle spare is fixed on printing equipment in the anticollision, and the pendulum fixing base is connected with the printing equipment shower nozzle, and the pendulum passes through the pendulum fixing base to be connected on the anticollision support, and reset spring is connected with pendulum and anticollision support.

The anti-collision switch blocking piece is L-shaped, is fixed on the pendulum bob and is positioned between the pendulum bob and the photoelectric switch.

Photoelectric switch is U type groove structure, is connected with the printing apparatus power, connects on fixed corner fittings of anticollision and anticollision support, at the printing apparatus operation in-process, and pendulum position takes place the skew when printing apparatus shower nozzle bumps with the barrier, and the removal of the crashproof switch separation blade on the pendulum triggers photoelectric switch to send stop signal and arouse the parking to prevent that the printing apparatus shower nozzle from touching the barrier.

The anti-collision devices are two and are respectively positioned on two sides of the spray head of the printing equipment.

When the pendulum bob is at the initial position, the pendulum bob is vertical to the printing surface.

When the pendulum bob is at the initial position, the distance from the bottom edge of the pendulum bob to the printing surface is 0.1-1.0 mm lower than the distance from the nozzle of the printing equipment to the printing surface.

The maximum offset distance of the pendulum is less than the distance of the pendulum from the printing device nozzle.

The width of the pendulum is larger than the width of the nozzle of the printing equipment.

The pendulum bob is a cuboid, can be of a solid structure, and can also be of a hollow structure.

Preferably, the pendulum is a hollow structure.

Compared with the prior art, the invention has the following advantages:

1) the anti-collision device for the spray head of the printing equipment has the advantages of simple structure, low cost, small occupied space and high stability;

2) the pendulum bob adopts a balance structure with equal mass, namely the upper mass and the lower mass, so that the upper mass and the lower mass can be ensured not to deviate when the pendulum bob normally moves, and once foreign matters appear, even if very weak force exists, the balance can be broken, so that the pendulum bob can deviate and rotate;

3) the anti-collision device has high detection sensitivity, is suitable for medium and low speed printing, can meet the requirement of high speed printing, and can effectively prevent the damage of the nozzle of the printing equipment caused by the unevenness of the printing medium in the printing process.

Drawings

FIG. 1 is a schematic view of a head crash prevention device of a printing apparatus of the present invention;

FIG. 2 is a schematic view of a printing apparatus of the present invention;

FIG. 3 is a schematic view of a pendulum construction of the present invention;

wherein: 1-anti-collision fixing corner fittings; 2, an anti-collision support; 3-pendulum bob fixing seat; 4-a pendulum bob; 5, a photoelectric switch; 6-anti-collision switch blocking sheet; 7-pendulum bob shaft; 8-a return spring; 100-collision avoidance device; 200-printing equipment nozzle.

Detailed Description

The invention is further described below with reference to the figures and examples.

A printing equipment shower nozzle buffer stop, as shown in fig. 1 and 2, printing equipment shower nozzle buffer stop 100 comprises fixed corner fittings of anticollision 1, anticollision support 2, pendulum fixing base 3, pendulum 4, photoelectric switch 5, crashproof switch separation blade 6, pendulum pivot 7 and reset spring 8. The collision prevention devices 100 are distributed on both sides of the head 200 of the printing apparatus.

Fixed corner fittings of anticollision 1 is fixed on printing apparatus, and pendulum fixing base 3 is connected with printing apparatus shower nozzle 200, and pendulum 4 is connected on crashproof support 2 through pendulum fixing base 3, and reset spring 8 is connected with pendulum 4 and crashproof support 2.

The anti-collision switch catch 6 is L-shaped, is fixed on the pendulum bob 4 and is positioned between the pendulum bob 4 and the photoelectric switch 5.

Photoelectric switch 5 is U type groove structure, is connected with the printing apparatus power, connects on fixed corner fittings of anticollision 1 and anticollision support 2, at the printing apparatus operation in-process, when printing apparatus shower nozzle 200 bumps with the barrier, pendulum pivot 7 rotates, and the skew takes place for pendulum 4 position, and the last crashproof switch separation blade 6 of pendulum 4 removes to trigger photoelectric switch 5 and sends stop signal and arouse the parking to prevent that printing apparatus shower nozzle 200 from touching the barrier. When the printer is driven again, the reset spring 8 moves the anti-collision switch separation blade 6 away and resets, and the pendulum bob 4 is restored to the position vertical to the printing surface.

Fig. 3 shows a pendulum bob structure of the present invention, in which the pendulum bob 4 is a rectangular parallelepiped, the shape and weight of the upper and lower portions of the pendulum bob shaft 7 are completely the same, and in order to save materials and reduce costs, the upper and lower portions of the pendulum bob 4 are hollow rectangular cuboids.