阅读说明：本技术 切刀位置感应装置 (Cutter position sensing device ) 是由 谢仲明 于 2019-12-12 设计创作，主要内容包括：本发明公开了一种切刀位置感应装置,包括绝缘座,绝缘座具有绝缘材料,绝缘材料中加工有通孔,孔内安装可导电的连接轴,连接轴一端安装有切刀；所述绝缘座上安装有信号线,信号线与连接轴电学导通；所述信号线与外部控制系统连通,切刀依次通过连接轴、信号线与控制系统连通,控制系统向切刀提供电压。当切刀与芯轴接触的瞬间构成电流通路,整个通路中产生电流,控制系统侦测到电流信号后,立即控制切刀退回,可以避免切刀与芯轴发生碰撞,防止损坏切刀的刀刃和芯轴的表面,提高切刀和芯轴的使用寿命,降低生产加工成本,并且可以减少更换次数,大大提高生产效率。(The invention discloses a cutter position sensing device which comprises an insulating seat, wherein the insulating seat is made of insulating materials, a through hole is processed in the insulating materials, a conductive connecting shaft is arranged in the through hole, and a cutter is arranged at one end of the connecting shaft; the insulating base is provided with a signal wire which is electrically conducted with the connecting shaft; the signal wire is communicated with an external control system, the cutter is communicated with the control system through the connecting shaft and the signal wire in sequence, and the control system provides voltage for the cutter. When the cutter and the mandrel contact, a current path is formed instantly, current is generated in the whole path, and after a control system detects a current signal, the cutter is controlled to return immediately, so that the cutter and the mandrel are prevented from colliding, the cutting edge of the cutter and the surface of the mandrel are prevented from being damaged, the service lives of the cutter and the mandrel are prolonged, the production and processing cost is reduced, the replacement times can be reduced, and the production efficiency is greatly improved.)

1. A cutter position sensing device is characterized in that: the cutting tool comprises an insulating seat (14), wherein the insulating seat (14) is made of insulating materials, a through hole is formed in the insulating materials, a conductive connecting shaft (15) is installed in the through hole, and a cutting knife (11) is installed at one end of the connecting shaft (15); the insulating base (14) is provided with a signal wire (17), and the signal wire (17) is electrically conducted with the connecting shaft (15); the signal wire (17) is communicated with an external control system, and the cutter (11) is communicated with the control system through the connecting shaft (15) and the signal wire (17) in sequence.

2. The cutter position sensing device according to claim 1, wherein: the insulating base (14) is provided with a metal conductive bolt (16), the conductive bolt (16) penetrates through an insulating material and then is in contact with the connecting shaft (15), and the outside of the conductive bolt (16) is connected with a signal wire (17).

3. The cutter position sensing device according to claim 1, wherein: and a wire is arranged on the insulating seat (14), one end of the wire is communicated with the connecting shaft (15), and the other end of the wire is communicated with the signal wire (17).

4. The cutter position sensing device according to claim 1, wherein: the insulating seat (14) is provided with a communication hole, and the signal wire (17) passes through the communication hole and is directly communicated with the connecting shaft (15).

5. The cutter position sensing device according to claim 1, wherein: a cutter fixing disc (21) is arranged between the connecting shaft (15) and the cutter (11), and the cutter (11) is arranged on the cutter fixing disc (21).

6. The cutter position sensing device according to claim 1, wherein: the control system can provide voltage to the cutting knife (11), detect current signals in the circuit and control the advancing and the retreating of the cutting knife (11).

7. The cutter position sensing device according to claim 1, wherein: the other end of the connecting shaft (15) is provided with a cutter rotating mechanism (13), and the connecting shaft (15) is electrically isolated from the cutter rotating mechanism (13).

8. The cutter position sensing device according to claim 7, wherein: the cutter rotating mechanism (13) is composed of a stepping motor and a reduction gear, and the reduction gear is made of insulating materials.

Technical Field

The invention relates to the technical field of processing equipment, in particular to a sensing device for sensing the position of a cutter of a paper tube cutting machine.

Background

The paper tube is a common product in daily life and has wide application, for example, products such as adhesive tapes, roll paper, plastic films and the like are all selected as an inner core. When the paper tube is manufactured, paper with certain thickness and hardness is matched with glue, and hard paper is wound into the paper tube on special tube winding equipment. The paper tube is long and cannot be directly applied to products such as adhesive tapes and roll paper, and therefore special paper tube cutting equipment is needed to cut the long paper tube into small paper tubes with specified lengths. When the paper tube cutting machine in the prior art works, the paper tube is driven by the chuck to rotate at a high speed, the cutter is close to the paper tube and tangent to the paper tube rotating at the high speed, the paper tube is cut off by utilizing the friction force between the paper tube and the cutter, but the cutter or the cutter can not confirm when the cutter cuts off the paper tube, so that a large cutter advancing amount is usually set in the prior art, the cutter is ensured to have enough cutting amount, and the paper tube is completely cut off. Because the inside metal dabber that is of the paper tube, the interval between paper tube inner wall and the dabber is very little moreover, and the cutter is after cutting off the paper tube, and it is very easy to collide with the dabber at the in-process that continues to advance, leads to the cutter to roll up the sword, causes the incision unsmooth in follow-up cutting process, influences the paper tube quality, causes to scrap even to need frequently to change the cutter, reduce machining efficiency. Moreover, because cutter and dabber often collide, the cutter is with dabber surface fish tail, after a period of time, the dabber surface is scratched the trace by the cutter, causes dabber surface unevenness, leads to the paper tube to be unstable when high-speed the rotation easily, also can cause the incision unsmooth, influences the cutting quality to need to change the dabber, increase the processing cost.

Disclosure of Invention

The applicant provides a novel cutter position sensing device, can detect the contact signal in the twinkling of an eye of cutter and metal dabber contact to in current paper tube cutting machine, unable automated inspection cutter contacts with the metal dabber, lead to cutter and dabber collision to cause the damage, influence the cutting quality, increase processing cost scheduling problem, can be in the cutter and the contact of metal dabber, and in time return through control system control cutter, avoid taking place the damage of cutter and dabber that hard collision leads to, improve cutting machine machining efficiency, reduce the maintenance cost.

The technical scheme adopted by the invention is as follows:

a cutter position sensing device comprises an insulating seat, wherein the insulating seat is made of insulating materials, a through hole is formed in the insulating materials, a conductive connecting shaft is installed in the through hole, and a cutter is installed at one end of the connecting shaft; the insulating base is provided with a signal wire which is electrically conducted with the connecting shaft; the signal wire is communicated with an external control system, and the cutter is communicated with the control system through the connecting shaft and the signal wire in sequence.

As a further improvement of the above technical solution:

and the insulating base is provided with a metal conductive bolt, the conductive bolt penetrates through the insulating material and then contacts with the connecting shaft, and the outside of the conductive bolt is connected with a signal wire.

And a wire is arranged on the insulating base, one end of the wire is communicated with the connecting shaft, and the other end of the wire is communicated with the signal wire.

The insulating base is provided with a communicating hole, and the signal wire passes through the communicating hole and is directly communicated with the connecting shaft.

And a cutter fixing disc is arranged between the connecting shaft and the cutter, and the cutter is arranged on the cutter fixing disc.

The control system is used for providing voltage for the cutter, detecting a current signal in the circuit and controlling the advance and the retreat of the cutter.

And a cutter rotating mechanism is installed at the other end of the connecting shaft, and the connecting shaft is electrically isolated from the cutter rotating mechanism.

The cutter rotating mechanism is composed of a stepping motor and a reduction gear, and the reduction gear is made of insulating materials.

The invention has the following beneficial effects:

according to the cutter position sensing device, the cutter is arranged on the insulating seat, the cutter is communicated with the control system through the cutter fixing disc, the connecting shaft, the conductive bolt and the signal wire in sequence, and the control system provides a voltage for the cutter. When the cutter and the mandrel contact, a current path is formed instantly, current is generated in the whole path, and after a control system detects a current signal, the cutter is controlled to return immediately, so that the cutter and the mandrel are prevented from colliding, the cutting edge of the cutter and the surface of the mandrel are prevented from being damaged, the service lives of the cutter and the mandrel are prolonged, the production and processing cost is reduced, the replacement times can be reduced, and the production efficiency is greatly improved.

Drawings

Fig. 1 is a front view of a paper tube cutter.

Fig. 2 is a top view of fig. 1, without the clamping and rotating device.

Fig. 3 is a schematic view of the tool assembly of the present invention in cooperation with a mandrel.

Fig. 4 is a top view of the knife device of fig. 3.

Fig. 5 is a cross-sectional view taken along direction AA of fig. 4, showing the structure of only one cutter.

Fig. 6 is a cross-sectional view taken along direction BB in fig. 4, showing only the structure of one cutter.

In the figure: 1. a frame; 2. a clamping and rotating device; 3. a cutter device; 4. a horizontal moving device; 5. a mandrel fixing device; 6. a drive device; 7. a control system; 8. a mandrel; 9. a center roller; 11. a cutter; 12. a cylinder; 13. a cutter rotating mechanism; 14. an insulating base; 15. a connecting shaft; 16. a conductive bolt; 17. a signal line; 18. a slider; 19. fixing the bolt; 20. a base; 21. a cutter fixing disc; 22. a motor; 23. a screw rod; 24. a connecting seat; 25. a guide rail.

Detailed Description

The following describes embodiments of the present invention with reference to the drawings.