Automatic silk reeling machine sensor resetting device compatible with numerical control and simulation

Abstract

The utility model relates to the technical field of silk reeling, in particular to a numerical control and simulation compatible automatic resetting device for a sensor of a silk reeling machine. The reset device comprises an exploration piece, a feeding stopping rod and a sensor, the middle of the exploration piece is connected with the reeling machine rack, and the top is provided with an inner arc section, an outer arc section and a mechanical reset cam; the feeding stopping rod is arranged above the exploration piece, the middle of the feeding stopping rod is connected with a silk reeling machine rack, a lifting rod and a slender rod used for being matched with the sensor are arranged on the front side, and a reset structure is arranged on the rear side and matched with the mechanical reset cam. Compared with the prior art, the silk feeding device has the advantages that 1, intelligent control is carried out on the opportunity of sensing silk strips by the sensor, and sensing accuracy and stability are improved; 2, a mechanical reset device is designed, so that the sensor is released in a delayed manner in an exploration period, and the influence on the fineness during silk feeding is reduced; and 3, the deviation quality of the fineness of raw silk is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of silk reeling, in particular to a numerical control and simulation compatible silk reeling machine sensor automatic resetting device. Background Art

[0002] The perception theory of the sensor currently used is based on the lever balance equation, F1·L1=F2·L2, and the cocoon is added when the balance on both sides of the equation is broken. The equation can only reflect the static state of the sensor. It cannot reflect the change of the friction between the silk strip and the sensor at different linear speeds. At present, all the reeling machine tables adopt the method of linkage between the stop rod and the sensor stop rod, that is, when the stop rod jumps up, the sensor immediately stops sensing the diameter of the silk strip, and when the stop rod is reset, the sensor immediately enters the sensing state.

[0003] This method causes the sensor to perceive inaccurately when the silk line is at a low speed, resulting in the generation of thick stripes on the silk line. Utility Model Content

[0004] The utility model aims to overcome the shortcomings of the prior art, and when resetting the stop lever, the sensor can delay an exploration cycle before entering the sensing state, and the automatic resetting device of the sensor of the silk reeling machine has both numerical control and mechanical control.

[0005] In order to achieve the above-mentioned purpose, an automatic reset device for a silk reeling machine sensor compatible with numerical control and simulation is designed, comprising an exploration piece, a stop-add rod and a sensor, the middle part of the exploration piece is connected to the frame plate of the silk reeling machine through a rotating shaft, and the structure of the existing exploration piece is used to provide an inner arc section on the front side of the top of the exploration piece, and an outer arc section on the rear side of the inner arc section, and a mechanical reset cam with a design protrusion is added to the rear side of the outer arc section of the existing exploration piece; the stop-add rod is arranged above the exploration piece, and the middle part is connected to the silk reeling machine frame through a rotating shaft, the front side of the stop-add rod is provided with a lifting rod for cooperating with the thin rod of the sensor, and the rear side of the stop-add rod is provided with a reset structure, and the reset structure cooperates with the mechanical reset cam of the exploration piece; after the stop-add rod is limited by the limiting structure, the lifting rod on the front side limits the sensor, the sensor is in a non-working state, and the exploration piece makes a reciprocating circular arc motion until the mechanical reset cam drives the stop-add rod reset structure to release the restriction of the limiting structure, thereby delaying an exploration cycle of the silk reeling machine.

[0006] Preferably, the rear side of the stop-adding rod of the utility model is arc-shaped, and the arc surface of the stop-adding rod is provided with a matching elastic body, which serves as a limiting structure to limit the movement of the stop-adding rod through friction to restrain the sensor from resetting.

[0007] Preferably, the limiting structure of the utility model is an electromagnet push rod and a coil wound on the electromagnet push rod, a connecting rod is provided on the rear side of the stop-adding rod, one end of the upper part of the connecting rod is a CNC reset post position, which cooperates with the electromagnet push rod, and one end of the lower part of the connecting rod is a mechanical reset post position, which cooperates with the mechanical reset cam of the exploration piece. After the electromagnet push rod is energized to generate magnetic force, it pushes the post on the CNC reset post position of the connecting rod to release the limiting movement of the stop-adding rod.

[0008] Preferably, when the reset pin is moved to the numerically controlled reset position, according to the momentum formula F·t=m·v, when the linear velocity v of the wire reaches the set value, the electromagnet push rod pushes the reset pin on the stop rod to put the sensor into working state.

[0009] Preferably, the utility model also includes a plurality of speed acquisition devices, wherein a plurality of sensors are arranged on the drum wheel of the silk reeling machine, and a sensor is arranged on the side of the drum wheel. When the drum wheel rotates, the single-chip microcomputer collects pulse signals to calculate the linear speed of the silk strip, and when the linear speed v of the silk strip reaches the set speed, the limit structure is controlled to release the stop rod.

[0010] Preferably, the utility model is provided with two working positions on the rear side of the stop-adding rod, one is a numerical control reset position, and the other is an analog reset position.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. Intelligent control: By applying the momentum theorem F·t=m·v, the timing of the sensor sensing the silk strip is intelligently controlled. By collecting the rotation speed of the small thread, calculating the linear speed of the silk strip, and releasing the electromagnet at the right time, it is ensured that the sensing is performed when the linear speed of the silk strip is normal, thus improving the accuracy and stability of the sensing.

[0013] 2. Mechanical analog reset: An analog reset device is designed. Through the cooperation of the cam and the reset paddle, the delayed release of the sensor within the exploration cycle is realized, further reducing the impact of adding thread on the fineness.

[0014] 3. Fineness control: By precisely controlling the sensing timing and reset timing of the sensor, effective control of the fineness of the silk thread is achieved, which helps to improve the fineness deviation quality of the raw silk. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 , is a schematic diagram of the sensor reset delay mechanism structure;

[0016] Figure 2 , is a schematic diagram of the reset pin of the stop rod in the CNC reset position;

[0017] Figure 3 , is a schematic diagram of the reset pin of the stop rod in the mechanical reset position;

[0018] Figure 4 , is a schematic diagram of the structure of the speed acquisition device;

[0019] Figure 5 , to explain each workstation in the exploration film;

[0020] Figure 6 , is a schematic diagram of the sensor rod falling on the arc outside the exploration piece;

[0021] Figure 7 , is a schematic diagram of the sensor rod falling on the arc inside the exploration piece.

[0022] In the figure: 101 exploration piece; 102 exploration piece outer arc; 103 exploration piece inner arc; 104 exploration piece rotation center; 105 mechanical reset cam; 106 spring piece; 107 numerical control reset post position; 108 mechanical reset post position; 109 electromagnet push rod; 110 coil; 111 reciprocating drive shaft core; 112 sensor thin rod; 113 stop adding rod; 301 sensor; 302 sensor body; 303 drum wheel. DETAILED DESCRIPTION

[0023] In order to make the purpose, principle and structure of the utility model clearer, it is further described below in conjunction with the drawings and specific embodiments.

[0024] Embodiment 1:

[0025] The first embodiment provides an analog (mechanical) automatic resetting device for a sensor of a silk reeling machine.

[0026] See also Figure 1 The device of the first embodiment includes an exploration piece, a stop adding rod and a sensor. The middle part of the exploration piece is connected to the reeling machine frame through a rotating shaft. The front side of the top of the exploration piece 101 is provided with an inner arc segment 103, the rear side of the inner arc segment 103 is provided with an outer arc segment 102, and the rear side of the outer arc segment 102 is provided with a raised mechanical reset cam 105; the stop adding rod 113 is arranged above the exploration piece 101, and the middle part is connected to the reeling machine frame through a rotating shaft, and the front side of the stop adding rod 113 is provided with a lifting rod , a thin rod 112 is used to cooperate with the sensor, and a reset structure is provided on the rear side of the stop-adding rod 113, and the reset structure cooperates with the mechanical reset cam 105 of the exploration piece 101; after the stop-adding rod 113 is limited by the limit structure, the lifting rod on the front side limits the sensor, and the sensor is in a non-working state. The exploration piece 101 performs reciprocating circular arc motion until the mechanical reset cam 105 drives the stop-adding rod reset structure to release the limit of the limit structure, delaying an exploration cycle of the silk reeling machine. The back side of the stop-adding rod 113 is in an arc shape, and the arc surface of the stop-adding rod is provided with a matching elastic body. The elastic body acts as a limit structure to limit the movement of the stop-adding rod through friction.

[0027] In terms of specific working methods:

[0028] When the stop lever is reset, the brake of the sensor plate releases the small brake, and the small brake rotates slowly with the small transmission rod under the action of friction. At this time, the rear arc surface of the stop lever 113 cannot rotate due to friction with the spring sheet 106, and the sensor and the stop lever cannot be linked because the stop lever 113 is limited.

[0029] A mechanical reset cam 105 is provided on the exploration piece 101, and performs reciprocating circular arc motion under the action of the exploration link. When the exploration piece 101 moves forward to perform the exploration action, when it is necessary to restore the linkage between the sensor and the stop rod, the mechanical reset cam 105 on the exploration piece 101 is controlled to hit the mechanical reset post position 108, so that the stop rod 113 breaks through the friction between the spring piece 106, so that the stop rod 113 rotates, and the sensor thin rod on the stop rod 113 is released, and the linkage between the sensor and the stop rod is restored.

[0030] It is worth mentioning that:

[0031] The first embodiment of the present invention is a method for controlling the timing of the sensor sensing the silk strip by using the momentum theorem F·t=m·v, where F is the friction between the silk strip and the sensor; t is the action time of the friction between the silk strip and the sensor, which is a set value of the exploration cycle; m is the mass of the sensor, which is a constant; v is the linear speed of the silk strip. It can be seen from the above formula that when the silk is reeled normally, the linear speed V of the silk strip is equal to the speed of the outer circumference of the small 䈅. When the silk is reeled normally, F is the friction between the silk strip and the sensor, which is positively correlated with the diameter of the silk strip. That is, when the diameter of the silk strip increases, the friction increases. When the diameter of the silk strip decreases, the friction decreases. The friction F and the linear speed v of the silk strip are two variables on both sides of the formula and show a positive correlation. Because the mass m of the sensor on one side of the formula is a constant value. The contact time t between the sensor and the silk strip on the other side is a set value. Therefore, it can be concluded that only when the wire line speed v is in a stable state can a correct friction force F between the wire and the sensor be obtained. A correct friction force can enable the sensor to determine whether the diameter of the wire reaches the thin limit of the wire.

[0032] In actual production, when the worker resets the stop rod, the sensor is immediately released and reset to the working position and starts working. Because the stop rod and the sensor stop rod are linked. And because the small rod and the transmission shaft are frictionally driven, the speed of the small rod is gradually accelerated. As a result, the linear speed of the silk strip does not reach the normal working linear speed, but the sensor enters the sensing state. From F·t=m·v, it can be concluded that because the mass m is a constant value and the time t is a set constant value, when the linear speed v decreases, the friction F decreases. Because the reduction in friction will cause the sensor to send a signal of adding cocoons, the diameter of the silk strip is too thick. Therefore, the friction between the silk strip and the sensor cannot correctly reflect the correct diameter of the silk strip at a low linear speed. Therefore, it is unreasonable for the sensor to immediately resume the working state when resetting the stop rod.

[0033] The mechanical simulation reset device is that when the stop rod is reset, the small rod enters the working state. After a sensor exploration cycle of about 2-3 seconds, the speed of the small rod basically returns to the normal speed. At this time, the sensor is released to enter the sensing state. The sensor can correctly sense the diameter of the silk strip. The time for the sensor to sense the silk strip and the time for resetting the stop rod are delayed by one exploration cycle by mechanical methods. When the stop rod jumps up, it drives the stop rod to rise up at the same time, disconnecting the sensor from sensing the silk strip.

[0034] Embodiment 2:

[0035] The second embodiment provides a digitally controlled automatic resetting device for a sensor of a silk reeling machine.

[0036] See also Figure 1 , its structure is different from that of the first embodiment: when the reset post is moved from the mechanical reset position 108 to the numerical reset position 107, the cooperation between the mechanical reset cam and the reset post head as the reset mechanism is cancelled on the rear side of the exploration piece. The arc surface on the rear side of the stop rod still cooperates with the elastic body. According to the momentum formula F·t=m·v, when V 丝 When the set value is reached, the arc coil 110 receives an electrical signal and pushes the push rod 109, which pushes the tree hole reset pin 107 on the numerical control reset position. Thus, the elastic body 106 releases the restraint of the stop rod 113, and the sensor enters the working state. It also includes several speed collection devices, see Figure 4 The speed acquisition device is to set a plurality of sensors 302 on the drum 303 of the silk reeling machine, and set a sensor 301 on the side of the drum. When the drum 303 rotates, the single chip collects pulse signals to calculate the linear speed of the silk strip. When the linear speed V 丝 When the set speed is reached, the limit structure is controlled to release the stop rod 113.

[0037] In terms of specific working methods:

[0038] When the stop lever is reset, the brake of the sensor plate releases the small brake, and the small brake rotates slowly with the small transmission rod under the action of friction. At this time, the rear side of the stop lever 113 is limited by the elastic body, and the sensor and the stop lever cannot be linked because the stop lever 113 is limited.

[0039] When the linkage between the sensor and the stop rod needs to be restored, the coil 110 is energized, and the electromagnetic push rod 109 pushes the CNC reset pin 107 to rotate the stop rod 113, releasing the sensor on the stop rod 113 and restoring the linkage between the sensor and the stop rod.

[0040] It is worth mentioning that:

[0041] In the second embodiment, a sensor is set on the drum wheel, and a sensor is set at the position corresponding to the drum wheel. The speed signal of the drum wheel is collected, and the linear speed of the silk strip is calculated by the single-chip microcomputer. When the linear speed of the silk strip approaches or reaches a reasonable value, the single-chip microcomputer sends a signal to restore the working state of the sensor, and the electromagnet pushes the CNC reset button on the stop rod to release the sensor. At this time, because the linear speed has approached or reached the working state. Therefore, the diameter of the silk strip sensed by the sensor at this time is consistent with the normal working state, and the situation of the silk strip diameter being too thick will not occur.

[0042] Embodiment three:

[0043] The above-mentioned embodiments 1 and 2 can be set and applied to the stop adding rod 113 and the exploration sheet 101 at the same time. Figure 2 , Figure 3 Two working positions are provided at the rear side of the stop rod 113, one is a numerical control reset position and the other is a mechanical reset position, which realizes the control of the linkage state between the sensor and the stop rod, and provides two control methods: numerical control and simulation.

[0044] Embodiment 4:

[0045] The limiting function of the limiting structure in the above-mentioned embodiments 1, 2 and 3 can also be achieved by gravity. The stop rod 112 is sensed to be limited when the silk reeling machine does not reach the set linear speed by drooping due to its own gravity.

[0046] The above is only a specific implementation method of this utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field within the technical scope disclosed by the utility model, according to the technical solution and new concept of the utility model, shall be covered by the protection scope of the utility model.

Claims

1. A CNC and analog compatible automatic resetting device for a silk reeling machine sensor, comprising a probe, a stop adding rod and a sensor, characterized in that The middle part of the exploration piece is connected to the reeling machine frame through a rotating shaft, the front side of the top of the exploration piece is provided with an inner arc section, the rear side of the inner arc section is provided with an outer arc section, and the rear side of the outer arc section is provided with a raised mechanical reset cam; The stop-adding rod is arranged above the exploration piece, and the middle part is connected to the reeling machine frame through a rotating shaft. A lifting rod is arranged on the front side of the stop-adding rod to cooperate with the thin rod of the sensor, and a reset structure is arranged on the rear side of the stop-adding rod, and the reset structure cooperates with the mechanical reset cam of the exploration piece; After the stop-adding rod is limited by the limiting structure, the lifting rod on the front side limits the sensor, the sensor is in an inoperative state, and the exploration piece makes reciprocating circular arc motion until the mechanical reset cam drives the stop-adding rod reset structure to release the restriction of the limiting structure, thereby delaying an exploration cycle of reeling.

2. A CNC and analog compatible silk reeling machine sensor automatic reset device as claimed in claim 1, characterized in that The rear side of the stop-adding rod is in an arc shape, and a matching elastic body is provided on the arc surface of the stop-adding rod. The elastic body serves as a limiting structure to limit the movement of the stop-adding rod through friction to restrain the reset of the sensor.

3. A CNC and analog compatible silk reeling machine sensor automatic reset device as claimed in claim 1, characterized in that The limiting structure is an electromagnet push rod and a coil wound on the electromagnet push rod. A connecting rod is provided on the rear side of the stop-adding rod. One end of the upper part of the connecting rod is a CNC reset post position, which cooperates with the electromagnet push rod. One end of the lower part of the connecting rod is a mechanical reset post position, which cooperates with the mechanical reset cam of the exploration piece. After the electromagnet push rod is energized to generate magnetic force, it pushes the post on the CNC reset post position of the connecting rod to release the limiting movement of the stop-adding rod.

4. The automatic resetting device for a sensor of a silk reeling machine compatible with numerical control and simulation as claimed in claim 1, characterized in that: When the reset pin is moved to the CNC reset position, according to the momentum formula F·t=m·v, when the linear velocity v of the wire reaches the set value, the electromagnet push rod pushes the CNC reset pin on the stop rod, so that the sensor enters the working state.

5. A CNC and analog compatible silk reeling machine sensor automatic reset device as claimed in claim 3, characterized in that It also includes several speed acquisition devices, which are several sensors set on the drum of the silk reeling machine and sensors set on the side of the drum. When the drum rotates, the single-chip microcomputer collects pulse signals to calculate the linear speed of the silk strip. When the linear speed v of the silk strip reaches the set speed, the limit structure is controlled to release the stop rod.

6. A CNC and analog compatible silk reeling machine sensor automatic reset device as claimed in claim 1, characterized in that There are two working positions on the rear side of the stop rod, one is the numerical control reset position and the other is the analog reset position.

Images