CN116216390A - Material belt conveying control system - Google Patents

Abstract

The invention relates to the technical field of production and manufacturing of low-pressure air switches, in particular to a material belt conveying control system. In the material belt conveying control system, the first material clamping mechanism (301), the second material clamping mechanism (302) and a material pulling mechanism (2) can be cooperatively controlled by a controller (4). After the material pulling mechanism (2) acts to enable the second material clamping mechanism (302) to drive the material belt (b) to move forwards by one step distance, a material pulling process is completed; and, when the material pulling mechanism (2) acts to enable the second material clamping mechanism (302) to retreat by one step distance, preparing for the next material pulling process. Meanwhile, after the material belt (b) is conveyed once, other processing mechanisms can cut, weld, rivet, assemble and other processing processes on the material belt (b). So reciprocally, this material area conveying control system can be in the automated production in-process of contact subassembly constantly convey material area (b) to improve the production efficiency of contact subassembly.

Description

Material belt conveying control system

Technical Field

The invention relates to the technical field of production and manufacturing of low-pressure air switches, in particular to a material belt conveying control system.

Background

The low-voltage air switch is provided with a contact assembly, the contact assembly comprises a support, a moving contact, a tripping bolt and two positioning shafts arranged on the tripping bolt, wherein the moving contact is welded at one end of the support, one positioning shaft is used for hinging the support on the tripping bolt, and the other positioning shaft is used for limiting the rotating range of the support.

At present, the production of the contact assembly adopts a manual operation mode, a hand-held welding gun welds a moving contact and a bracket, then the bracket is placed into a release bolt, and the moving contact and the bracket are assembled together through a positioning shaft.

Disclosure of Invention

In view of the foregoing, the present invention provides a belt conveying control system for realizing automation of belt conveying in an automatic production process of a contact assembly.

The material belt conveying control system comprises a machine table, a multi-section feeding rail arranged on the machine table, a first material clamping mechanism, a second material clamping mechanism, a material pulling mechanism and a controller. The machine is provided with a plurality of sections of feeding tracks which are arranged along a straight line, and the feeding tracks are used for supporting the material belts. The first clamping mechanism and the second clamping mechanism are arranged on the same straight line with the multi-section feeding track and are respectively used for clamping and loosening the material belt, and the first clamping mechanism is arranged on the machine table. The material pulling mechanism is used for driving the second material clamping mechanism to move along the material moving track. The controller is in signal connection with the first clamping mechanism, the second clamping mechanism and the material pulling mechanism. And, the controller is configured to: the first clamping mechanism is controlled to loosen the material belt, and the second clamping mechanism is controlled to clamp the material belt; controlling the material pulling mechanism to act so that the second material clamping mechanism drives the material belt to move forwards by one step distance; when the material belt moves forwards by one step distance, the first material clamping mechanism is controlled to clamp the material belt, and the second material clamping mechanism is controlled to loosen the material belt; and controlling the material pulling mechanism to act so as to enable the second material clamping mechanism to retreat by one step distance.

In the above-mentioned material belt conveying control system that this application provided, first clamping mechanism, second clamping mechanism and a material mechanism that draws all can carry out above-mentioned cooperative control by the controller. After the material pulling mechanism acts to enable the second material clamping mechanism to drive the material belt to move forwards by one step distance, a material pulling process is completed; and when the material pulling mechanism acts to enable the second material clamping mechanism to retreat by one step distance, preparing the next material pulling process. Meanwhile, after the material belt is conveyed once, other processing mechanisms can cut, weld, rivet, assemble and other processing processes on the material belt. So reciprocally, this conveying system can be in the automated production in-process of contact subassembly constantly to the material area conveying to improve the production efficiency of contact subassembly.

In the preferred technical scheme of the above material belt conveying control system provided by the application, the material belt conveying control system further comprises at least one positioning mechanism for guiding the material belt, and the positioning mechanism is arranged on the feeding rail of the feeding side of the machine. Wherein the controller is further in signal connection with the positioning mechanism, the controller is further configured to: and after the first clamping mechanism is controlled to clamp the material belt, the positioning mechanism is controlled to act so as to guide the material belt.

In the above technical scheme, because each processing mechanism is required to have certain requirements on accuracy and stability of the position of the material belt when the material belt is subjected to the processing procedures of cutting, welding, riveting, assembling and the like. After the first clamping mechanism clamps the material belt, the controller controls the positioning mechanism to act so as to guide the material belt, so that the material belt can be always kept at the required position of each processing mechanism, and the automatic production process of the contact assembly is more stable and reliable.

Drawings

The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings in which:

FIG. 1 is a schematic illustration of a web processing flow;

FIG. 2 is a schematic diagram of the overall structure of a belt transport control system;

FIG. 3 is a schematic diagram of a mechanism for implementing the draw function in the web transport control system of FIG. 2;

FIG. 4 is a schematic diagram of a mechanism associated with the web transport control system of FIG. 2 for performing a web guide function;

fig. 5 is a schematic diagram of signal connection relationship in the belt conveying control system of fig. 2.

Wherein, the reference numerals are as follows:

1, a machine table; 11-a feeding track; 12-a material guide plate; 121-an arc-shaped guide slot; 13-struts;

2-a material pulling mechanism; 21-an electric motor;

211-sliding rails; 212-a screw shaft;

22-moving member;

23-a photoelectric switch;

301-a first clamping mechanism; 302-a second clamping mechanism;

31-a frame; 32-fixing clamping pieces; 33-a first cylinder;

331-a first solenoid valve block; 332-a first magnetic switch;

34-moving the clamping piece;

4-a controller;

5-a positioning mechanism; 51-a fixed plate; 521-linear bearings; 522-a guide shaft; 53-floating mount;

531-adjusting holes;

54-guiding the needle; 55-connecting seats;

561-second cylinder; 562-a second solenoid valve block; 563-a second magnetic switch;

571-an adjustment block; 572—fixing blocks; 58-a first adjusting screw;

a-a contact assembly; a1-a bracket; a2-a moving contact; a3-a trip bolt; a4-positioning shaft;

b-material belt; b 1-guide holes.

Detailed Description

The present invention will be further described in detail with reference to the following examples, in order to make the objects, technical solutions and advantages of the present invention more apparent.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The tape conveying control system provided in this embodiment can convey the tape b shown in fig. 1, on which the support a1 has been cut at a certain distance in advance, and on which a plurality of guide holes b1 have been formed in advance at set intervals. When the control system conveys the material belt b, the material belt b can be cut, welded, riveted, assembled and the like by other processing mechanisms at respective stations every time the material belt b is conveyed, so that the contact assembly is processed. It can be seen from fig. 1 that the contact assembly finally formed comprises a bracket a1, a moving contact a2, a trip bolt a3 and two positioning shafts a4 arranged on the trip bolt a3, wherein the moving contact a2 is welded at one end of the bracket a1, one positioning shaft a4 is used for hinging the bracket a1 on the trip bolt a3, and the other positioning shaft a4 is used for limiting the rotation range of the bracket a 1.

As shown in fig. 2, the belt conveying control system has a machine 1, and a plurality of sections of feeding rails 11 are arranged on the machine 1 in a straight line, and the feeding rails 11 are used for supporting the belt b. The machine 1 is further provided with related mechanisms for realizing a material pulling function, for example, a first material clamping mechanism 301, a second material clamping mechanism 302 and a material pulling mechanism 2.

The first clamping mechanism 301 and the second clamping mechanism 302 are arranged on the same straight line with the multi-section feeding track 11 and are respectively used for clamping and loosening the material belt b, and the first clamping mechanism 301 is arranged on the machine table 1. At the same time, the material pulling mechanism 2 is used for driving the second material clamping mechanism 302 to move along the material conveying track 11. The material pulling mechanism 2 and the first material clamping mechanism 301 can be relatively fixedly arranged on the machine table 1 through a plurality of support posts 13.

Preferably, in the material belt conveying control system, two material guiding plates 12 are respectively connected to the feeding end and the discharging end of the material conveying track 11, and an arc-shaped guide groove 121 bent from the horizontal direction to the vertical direction is arranged on the material guiding plates 12, so that the material belt b is allowed to naturally droop along the arc-shaped guide groove 121 on the feeding side and the discharging side without being supported by the material conveying track 11, and the damage of the material belt b is avoided.

In an alternative embodiment, referring to fig. 5, the first clamping mechanism 301, the second clamping mechanism 302, and a pulling mechanism 2 may all be cooperatively controlled by a controller 4. For example, the controller 4 may be in signal connection with the first clamping mechanism 301, the second clamping mechanism 302, and the pulling mechanism 2, and the controller 4 is configured to: the first clamping mechanism 301 is controlled to loosen the material belt b and the second clamping mechanism 302 is controlled to clamp the material belt b, and then the material pulling mechanism 2 is controlled to act so that the second clamping mechanism 302 drives the material belt b to move forward by one step (move forward leftwards in fig. 2), so that a material pulling process is completed. When the material belt b moves forward by one step distance, the first clamping mechanism 301 is controlled to clamp the material belt b, the second clamping mechanism 302 is controlled to unclamp the material belt b, and then the material pulling mechanism 2 is controlled to act so as to enable the second clamping mechanism 302 to retreat by one step distance, so that the next material pulling process is prepared.

Meanwhile, after the material belt b is conveyed once, other processing mechanisms can cut, weld, rivet, assemble and other processing processes on the material belt b. So reciprocally, this material area conveying control system can be in the automated production in-process of contact subassembly constantly convey material area b to improve the production efficiency of contact subassembly.

It should be noted that, the "step distance" in this embodiment is consistent with the distance between the adjacent frames a1 that have been cut in advance on the material belt b, and the "step distance" may be adjusted with respect to the actual distance between the adjacent frames a1, and is not interpreted as a specific value.

Because each processing mechanism is required to have certain requirements on the accuracy and stability of the position of the material belt b in the processing procedures of cutting, welding, riveting, assembling and the like of the material belt b. In a preferred embodiment, as shown in fig. 2, the web transport control system further comprises associated means for performing the function of guiding the web b, for example at least one positioning means 5. The positioning mechanism 5 is arranged on a feeding rail 11 on the feeding side of the machine table 1. The feed rail 11 can be arranged on the machine 1 in a relatively fixed manner by means of at least one support 13. The second clamping mechanisms 302 are all disposed on the discharging side of the machine 1, and the first clamping mechanism 301 is disposed between the at least one positioning mechanism 5 and the second clamping mechanism 302.

As can be seen from the above-mentioned arrangement of the first clamping mechanism 301 and the second clamping mechanism 302 relative to the positioning mechanism 5, the present tape conveying control system adopts a scheme of pulling the tail of the tape b and guiding the front of the tape b. The guide from the front end of the material belt b is beneficial to ensuring the position accuracy of the material belt b in the later conveying process, and the material pulling at the tail of the material belt b is beneficial to preventing the material belt b from curling compared with the pushing at the front end of the material belt b, and is more beneficial to keeping the conveying stability and reliability of the material belt b.

In an alternative embodiment, in combination with fig. 5, the controller 4 is further in signal connection with the positioning mechanism 5, and the controller 4 is further configured to: after the first clamping mechanism 301 is controlled to clamp the material belt b, the positioning mechanism 5 is controlled to act so as to guide the material belt b. Therefore, the controller 4 cooperatively controls the related mechanism for realizing the material pulling function and the related mechanism for realizing the function of guiding the material belt b, so that the material belt b can be always kept at the required position of each processing mechanism in the conveying process, and the automatic production process of the contact assembly is more stable and reliable.

In a preferred embodiment, referring to fig. 3, the first clamping mechanism 301 and the second clamping mechanism 302 may each include a frame 31, a fixed clamping member 32, a movable clamping member 34, and a first driving device. Wherein the fixed clamp 32 is disposed at one end of the frame 31 and is used for supporting the material belt b, and the movable clamp 34 is disposed opposite to the fixed clamp 32 and is driven by the first driving device to move in a direction approaching and moving away from the fixed clamp 32. Thus, when the first driving device drives the movable clamp 34 to move towards the direction approaching the fixed clamp 32, the movable clamp 34 can press the material belt b supported on the fixed clamp 32; when the first drive device drives the movable clamp 34 in a direction away from the stationary clamp 32, the movable clamp 34 can release the material web b supported on the stationary clamp 32. For example, the fixed clamp member 32 or the movable clamp member 34 may be plate-shaped, wedge-shaped, columnar, etc., and preferably, a surface of the fixed clamp member 32 or the movable clamp member 34 facing the material belt b is a plane corresponding to the width of the material belt b.

With continued reference to fig. 3, the arrangement of the multi-stage feed rail 11 is required to meet the requirements for supporting the strip b and for moving the second clamping mechanism 302. In a preferred embodiment, two sides of the frame 31 of the first clamping mechanism 301 may be provided with a section of feeding rail 11, and one side of the frame 31 of the second clamping mechanism 302 is provided with a section of feeding rail 11. When the pulling mechanism 2 is retreated by one step distance, the second clamping mechanism 302 is connected with the material running track 11 between the first clamping mechanisms 301, and the second clamping mechanism 302 is separated from the adjacent material running track 11 at the other side by one step distance. In this way, the reliability of the belt conveyance control system for conveying the belt b can be maintained on the premise of meeting the moving space requirement of the second clamping mechanism 302.

Referring to fig. 5, in a preferred embodiment, the controller 4 is capable of being in signal connection with the first driving means of the first and second clamping mechanisms 301, 302, and the controller 4 is configured to: when the first driving device is controlled to drive the movable clamping piece 34 and move towards the direction approaching the fixed clamping piece 32, the first clamping mechanism 301 or the second clamping mechanism 302 is enabled to clamp the material belt b; when the first driving device is controlled to drive the movable clamping piece 34 and move in a direction away from the fixed clamping piece 32, the first clamping mechanism 301 or the second clamping mechanism 302 is caused to release the material belt b.

Referring to fig. 3 and 5, the first driving device may include a first cylinder 33, a first solenoid valve group 331, and a first magnetic switch 332. The first cylinder 33 is disposed at the other end of the frame 31, the first cylinder 33 has a non-magnetically permeable cylinder and a non-magnetic piston, and a permanent magnetic ring is disposed on the piston. The first solenoid valve group 331 is connected to the air path of the first cylinder 33 and controls the movement of the piston. The first magnetic switch 332 is arranged on the outside of the cylinder and is arranged to be turned on when the piston drives the moving clamp 34 to a position clamping the strip b.

Illustratively, the mounting position of the first magnetic switch 332 outside the cylinder tube of the first cylinder 33 may be determined as follows: after the piston drives the moving clamp 34 to move to a position for clamping the material belt b to fix the piston, the first magnetic switch 332 is moved left and right along the cylinder outside the cylinder, and the highest sensitivity position when the first magnetic switch 332 is attracted is found, the first magnetic switch 332 is fixed. In this way, when the piston drives the permanent magnetic ring to move to the position where the first magnetic switch 332 is located, the two reeds of the first magnetic switch 332 are magnetized and then attract each other to close the contacts, so that the first magnetic switch 332 is switched from off to on, and when the first magnetic switch 332 is on, the first cylinder 33 is controlled to stop moving.

Referring to fig. 5, in a preferred embodiment, the controller 4 is further in signal connection with the first solenoid valve group 331 and the first magnetic switch 332 of the first and second clamping mechanisms 301 and 302, and the controller 4 is configured to: the movable clamping piece 34 moves towards and away from the fixed clamping piece 32 by controlling the first electromagnetic valve group 331; and when the controller 4 receives a signal fed back by the first magnetic switch 332 from off to on, the first electromagnetic valve group 331 is controlled so that the moving clamping piece 34 stops moving.

Therefore, the first clamping mechanism 301 and the second clamping mechanism 302 can control the electromagnetic valve group thereof by the controller 4 to control the air passage of the first air cylinder 33 and determine the moving direction of the piston. For example, the piston may be moved from an initial position to a position such that the first magnetic switch 332 is turned on, and the controller 4 determines in this way that the first clamping mechanism 301 or the second clamping mechanism 302 has clamped the strip b. Further, when the first clamping mechanism 301 or the second clamping mechanism 302 releases the belt b, the piston may be caused to retract to the initial position.

Preferably, an alarm signal is sent when the controller 4 does not receive a signal fed back by the first magnetic switch 332 from off to on within a set period of time. In this embodiment, the fault that the first clamping mechanism 301 or the second clamping mechanism 302 cannot clamp the material belt b normally is detected, so as to ensure that a responsible person is informed of the fault detection in time.

Although the first driving device is described by taking the first cylinder 33 as an example in the present embodiment, the above-described functions of the first material clamping mechanism 301 or the second material clamping mechanism 302 can be still realized by the motor driving.

With continued reference to fig. 3, in an alternative embodiment, the pulling mechanism 2 includes a sliding rail 211, a moving member 22, and a second driving device. The sliding rail 211 is disposed on the machine 1 and extends along the feeding track 11, the moving member 22 is slidably disposed on the sliding rail 211, and the second clamping mechanism 302 is disposed on the moving member 22. For example, two sides of the moving member 22 may be provided with a limit bar, and two side inner walls of the sliding rail 211 may be formed with limit grooves, so that the moving member 22 can be slidably engaged with the sliding rail 211. For another example, a sliding block may be slidably disposed in the sliding rail 211, and the moving member 22 may be connected to the sliding block, so as to implement sliding connection of the moving member 22 relative to the sliding rail 211. Wherein the controller 4 is in signal connection with the second drive means. The controller 4 may control the second driving device to drive the moving member 22 to move along the sliding rail 211, so that the second clamping mechanism 302 can pull the material belt b to move forward by one step distance.

With continued reference to fig. 3 and 5, the second driving device may include a motor 21, a screw shaft 212, and at least one photoelectric switch 23. The screw shaft 212 is rotatably disposed on the sliding rail 211, and one end of the screw shaft 212 is connected to the output end of the motor 21, and the screw shaft 212 drives the moving member 22 to move in a threaded transmission manner. For example, both ends of the screw shaft 212 may be respectively disposed on the rails through a bearing such that the screw shaft 212 is rotatably connected with the slide rail 211. The photoelectric switch 23 may be provided on the machine 1 and configured to be turned on when the movable member 22 advances one step.

Illustratively, the web conveyance control system may learn from a preliminary test that the pull mechanism 2 drives the second gripper mechanism 302 forward or backward by one step as required for the pulse. For example, when the motor 21 is a stepping motor, the rotation angle can be controlled by controlling the number of pulses; when the motor 21 is a servo motor, the rotation angle can be controlled by controlling the length of the pulse time. Thereby controlling the moving distance of the pulling mechanism 2 to drive the second clamping mechanism 302.

Preferably, the controller 4 may be in signal connection with the motor 21, the opto-electronic switch 23, the controller 4 being further configured to: the rotation angle of the motor 21 is controlled by controlling the number of pulses sent to the motor 21 or the time to drive the second clamping mechanism 302 to advance or retreat. The motor 21 is controlled to stop when a signal from turning off to on fed back by the photoelectric switch 23 is received. According to this embodiment, the motor 21 can ideally cause the pulling mechanism 2 to complete the task of driving the second clamping mechanism 302 forward one step or backward one step according to the set pulse parameters, and the photoelectric switch 23 can send a feedback signal to the controller 4 at this time. In addition, the photoelectric switch 23 can be used for correcting the precision problems of the motor 21 such as out-of-step and the like after the second driving device operates for a period of time, so that the accuracy and the reliability of the material belt conveying control system for conveying the material belt b can be ensured.

Although the above embodiment has been described with the second driving device including the motor 21 as an example, the second driving device may use a cylinder as a power device to realize the above-described function of the material pulling mechanism 2.

Referring to fig. 4, the positioning mechanism 5 of the present embodiment may include a fixed plate 51, two linear bearings 521, two guide shafts 522, a floating seat 53, a connection seat 55, and a third driving device. The fixing plate 51 is disposed on the bottom surface of the feeding rail 11, and two sides of the fixing plate extend out of the feeding rail 11 and are provided with two shaft holes, two linear bearings 521 are respectively disposed in one shaft hole, and two guide shafts 522 respectively pass through one linear bearing 521 and are in sliding fit. The floating seat 53 is connected to the upper ends of the two guide shafts 522, and at least one guide needle 54 is provided thereon, and the guide needle 54 protrudes toward the top surface of the feed rail 11. The connecting seats 55 are connected to the lower ends of the two guide shafts 522, and the third driving means is provided to insert the guide needles 54 into the guide holes b1 of the material tape b by driving the connecting seats 55.

Illustratively, when there are a corresponding plurality of guide holes b1 for each bracket a1 on the material tape b, a plurality of guide pins 54 may be provided on the floating seat 53 to position the material tape b. For another example, when the floating seat 53 and the material belt b are matched with only one guide needle 54, two positioning mechanisms 5 can be used to position the material belt b at the positions of the guide holes b1 corresponding to different brackets a1 respectively, so that the material belt b cannot rotate or deviate. The positioning device can position the material belt b once after each advancing step of the material belt b.

Preferably, the controller 4 is also in signal connection with the third driving means, and the controller 4 is further configured to: after the first clamping mechanism 301 is controlled to clamp the material belt b, the third driving device is controlled to act so that the guide needle 54 is inserted into the guide hole b1 of the material belt b; when the controller 4 receives the guide pin 54 fed back from the positioning mechanism 5 and has been inserted into the guide hole b1 of the web b, at least one processing mechanism is controlled to operate so as to process the web b. Therefore, the controller 4 can realize cooperative control of the relevant mechanism for realizing the material pulling function, the relevant mechanism for realizing the material guiding belt b function and the processing mechanism, so that the automation of the production of the contact assembly is finally realized, and the production efficiency of the contact assembly is improved.

Preferably, the controller 4 may be further configured to: after controlling at least one processing mechanism to process the material belt b, and after the processing mechanism completes one processing task of the material belt b, controlling the third driving device to operate so as to enable the guide needle 54 to leave the material belt b, and controlling the material pulling mechanism 2, the first material clamping mechanism 301 and the second material clamping mechanism 302 to operate so as to enable the material belt b to move forward by one step distance. It should be noted that this is an exemplary illustration of how continuous automated production of the contact assemblies may be achieved.

Preferably, the controller 4 may be further configured to: after controlling the operation of the third driving means to insert the guide needle 54 into the guide hole b1 of the web b, the controller 4 sends out an alarm signal when receiving feedback from the positioning mechanism 5 that the guide needle 54 cannot be inserted into the guide hole b1 of the web b. The embodiment also reminds or accidentally monitors faults such as errors in conveying distance, deviation of the material belt b and the like in conveying the material belt b, so that guarantee is provided for safe and reliable automatic production of the material belt b.

In a preferred embodiment, referring to fig. 4 and 5, the third driving device may include a second cylinder 561, a second solenoid valve block 562, and a second magnetic switch 563. The second cylinder 561 has a non-magnetic cylinder and a non-magnetic piston, and a permanent magnetic ring is disposed on the piston; in which the cylinder tube of the second cylinder 561 may be provided on the connection block 55, and the piston of the second cylinder 561 may be connected to the fixing plate 51. A second solenoid valve block 562 may be connected to the air path of the second cylinder 561 and control the movement of the piston of the second cylinder 561. The second magnetic switch 563 may be provided at the outer side of the cylinder and is configured to be turned on when the piston inserts the guide pin 54 into the guide hole b1 of the tape b by driving the connection seat 55.

Illustratively, the mounting position of the second magnetic switch 563 outside the cylinder barrel of the second cylinder 561 may be determined as follows: the piston is fixed by moving the piston drive connection base 55 to a position where the guide pin 54 is inserted into the guide hole b1 of the tape b, and the second magnetic switch 563 is moved laterally along the cylinder outside the cylinder, and then the second magnetic switch 563 is fixed after finding the highest sensitivity position at which the second magnetic switch 563 is attracted. Thus, when the piston drives the permanent magnet ring to move to the position where the second magnetic switch 563 is located, the two reeds of the second magnetic switch 563 are magnetized and then attract each other to close the contact, so that the second magnetic switch 563 is changed from off to on, and when the second magnetic switch 563 is on, the first cylinder 33 is controlled to stop moving.

In connection with fig. 5, in a preferred embodiment, the controller 4 is also in signal connection with the second solenoid valve group 562, the second magnetic switch 563 of the positioning mechanism 5, and the controller 4 is configured to: the guide needle 54 is moved in a direction approaching and separating from the material tape b by controlling the second electromagnetic valve group 562; and, when the controller 4 receives the signal from the off to the on fed back by the second magnetic switch 563, controls the second electromagnetic valve group 562 so that the guide needle 54 stops moving.

Although the above embodiment has been described with the third driving device including the cylinder as an example, the third driving device may use a motor as a power device to realize the above-described function of the positioning mechanism 5.

With continued reference to fig. 4, in a preferred embodiment, the floating seat 53 may be provided with an adjusting hole 531, and the adjusting hole 531 is a section extending along the width direction of the feeding track 11; the positioning mechanism 5 further includes a fixed block 572, a first adjustment screw 58, an adjustment block 571, and a second adjustment screw (not shown). The fixed block 572 is disposed on the floating base 53, and the first adjusting screw 58 is screwed to the fixed block 572, and extends in the width direction of the feeding rail 11 and passes through the fixed block 572. The adjusting block 571 is provided with at least one guide pin 54 and is connected to one end of a second adjusting screw which passes through the adjusting hole 531 and connects the adjusting block 571 to the floating seat 53. This arrangement allows the position of the guide needle 54 in the positioning mechanism 5 to be adjusted according to the position of the guide hole b1 in the web b. So that the tape transport control system can also adapt to the tape b with different positions of the guide hole b1.

In order to clearly explain the process of the web conveyance control system of the present embodiment as a whole, the execution flow of the controller 4 included in the present embodiment is briefly summarized as follows:

s1, the first clamping mechanism 301 is controlled to loosen the material belt b and the second clamping mechanism 302 is controlled to clamp the material belt b, and then the material pulling mechanism 2 is controlled to act so that the second clamping mechanism 302 drives the material belt b to move forward by one step distance.

S2, after the material belt b moves forwards by one step distance, the first clamping mechanism 301 is controlled to clamp the material belt b, the second clamping mechanism 302 is controlled to loosen the material belt b, and then the material pulling mechanism 2 is controlled to act so as to enable the second clamping mechanism 302 to retreat by one step distance.

S3, after the first clamping mechanism 301 is controlled to clamp the material belt b, the positioning mechanism 5 is controlled to act so as to guide the material belt b.

And S4, when the controller 4 receives that the guide needle 54 fed back by the positioning mechanism 5 is inserted into the guide hole b1 of the material belt b, controlling at least one processing mechanism to act so as to process the material belt b.

S5, after the processing mechanism completes one processing task on the material belt b, the third driving device is controlled to act so as to enable the guide needle 54 to leave the material belt b, and the material pulling mechanism 2, the first material clamping mechanism 301 and the second material clamping mechanism 302 are controlled to act so as to enable the material belt b to move forward by one step distance, namely, the step S1 is started to be executed again.

It should be noted that not all the steps in the above processes are necessary, and some steps or modules may be omitted according to actual needs. The execution sequence of the steps is not fixed and can be adjusted as required. The controller 4 may be a PLC (Programmable Logic Controller ) or may be a permanently dedicated circuit or logic (such as a dedicated processor, FPGA or ASIC) to perform the corresponding operations.

The invention relates to the technical field of production and manufacturing of low-pressure air switches, in particular to a material belt conveying control system. In the tape transfer control system, the first clamping mechanism 301, the second clamping mechanism 302 and one of the pulling mechanisms 2 are cooperatively controlled by one of the controllers 4. After the material pulling mechanism 2 acts to enable the second material clamping mechanism 302 to drive the material belt b to move forwards by one step distance, a material pulling process is completed; and, when the pulling mechanism 2 is operated to make the second clamping mechanism 302 retreat by one step distance, the next pulling process is prepared. Meanwhile, after the material belt b is conveyed once, other processing mechanisms can cut, weld, rivet, assemble and other processing processes on the material belt b. So reciprocally, this material area conveying control system can be in the automated production in-process of contact subassembly constantly convey material area b to improve the production efficiency of contact subassembly.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention. Nouns and pronouns for humans in this patent application are not limited to a particular gender.

Claims (10)

1. The material area conveying control system, characterized by, include:

a machine (1) provided with a plurality of sections of feeding tracks (11) arranged along a straight line;

the first clamping mechanism (301) and the second clamping mechanism (302) are arranged on the same straight line with the multi-section feeding track (11) and are respectively used for clamping and loosening the material belt (b), and the first clamping mechanism (301) is arranged on the machine table (1);

a material pulling mechanism (2) for driving the second material clamping mechanism (302) to move along the material conveying track (11)

The controller (4) is in signal connection with the first clamping mechanism (301), the second clamping mechanism (302) and the material pulling mechanism (2), and the controller (4) is configured to:

the first clamping mechanism (301) is controlled to loosen the material belt (b), and the second clamping mechanism (302) is controlled to clamp the material belt (b);

controlling the material pulling mechanism (2) to act so that the second material clamping mechanism (302) drives the material belt (b) to move forwards by one step distance;

when the material belt (b) moves forwards by one step distance, the first material clamping mechanism (301) is controlled to clamp the material belt (b), and the second material clamping mechanism (302) is controlled to loosen the material belt (b);

and controlling the pulling mechanism (2) to act so as to enable the second clamping mechanism (302) to retreat by one step distance.

2. The web conveyance control system according to claim 1, wherein the first and second sandwiching mechanisms (301, 302) each include:

a frame (31);

a fixing clip (32) provided at one end of the frame (31) and supporting the tape (b);

a movable clamp (34) disposed opposite the fixed clamp (32);

a first driving device configured to drive the movable clamp member (34) and move in a direction approaching and moving away from the fixed clamp member (32);

wherein the controller (4) is in signal connection with the first drive means, and the controller (4) is configured to:

when the first driving device is controlled to drive the movable clamping piece (34) and move towards the direction approaching the fixed clamping piece (32), the first clamping mechanism (301) or the second clamping mechanism (302) clamps the material belt; when the first driving device is controlled to drive the movable clamping piece (34) and move in a direction away from the fixed clamping piece (32), the first clamping mechanism (301) or the second clamping mechanism (302) is enabled to loosen the material belt.

3. The web transport control system according to claim 2, wherein the first driving means includes:

a first cylinder (33) arranged at the other end of the frame (31), wherein the first cylinder (33) is provided with a non-magnetic cylinder barrel and a non-magnetic piston, and a permanent magnetic ring is arranged on the piston;

a first electromagnetic valve group (331) connected to the gas path of the first cylinder (33) and controlling the movement of the piston;

a first magnetic switch (332) arranged outside the cylinder and configured to be turned on when the piston drives the moving clamp (34) to a position clamping the material belt (b);

wherein the controller (4) is in signal connection with the first electromagnetic valve group (331) and the first magnetic switch (332), and the controller (4) is configured to:

-moving the moving clamp (34) towards and away from the fixed clamp (32) by controlling the first solenoid valve group (331); and when the controller receives a signal fed back by the first magnetic switch (332) from off to on, the first electromagnetic valve group (331) is controlled so that the movable clamping piece (34) stops moving.

4. A web transport control system according to claim 3, characterized in that the controller (4) is further configured to: and when the controller does not receive a signal fed back by the first magnetic switch (332) from off to on within a set time period, an alarm signal is sent.

5. The web conveyance control system according to claim 1, wherein the pulling mechanism (2) includes:

a sliding rail (211), wherein the sliding rail (211) is arranged on the machine table (1) and extends along the feeding track (11);

a moving member (22) slidably disposed on the slide rail (211), and the second material clamping mechanism (302) is disposed on the moving member (22);

a second driving device configured to drive the moving member (22) to move along the slide rail (211);

wherein the controller (4) is in signal connection with the second driving device.

6. The web transport control system according to claim 5, wherein the second driving means includes:

a motor (21);

the screw shaft (212) is rotatably arranged on the sliding rail (211), one end of the screw shaft (212) is connected with the output end of the motor (21), and the screw shaft (212) drives the moving part (22) to move in a threaded transmission mode;

at least one photoelectric switch (23) arranged on the machine (1), the photoelectric switch (23) being arranged to be turned on when the moving member (22) is advanced by one step;

wherein, the controller (4) is connected with the motor (21) and the photoelectric switch (23) in a signal way, and the controller (4) is further configured to:

the rotation angle of the motor (21) is controlled by controlling the number or time of the pulses sent to the motor (21) so as to drive the second clamping mechanism (302) to advance or retreat;

and when receiving a signal fed back by the photoelectric switch (23) and converted from off to on, controlling the motor (21) to stop.

7. The web transport control system of claim 1, further comprising:

at least one positioning mechanism (5) arranged on a feeding track (11) at the feeding side of the machine table (1) and used for guiding the material belt (b);

wherein the controller (4) is further in signal connection with the positioning mechanism (5), the controller (4) being further configured to: after the first clamping mechanism (301) is controlled to clamp the material belt (b), the positioning mechanism (5) is controlled to act so as to guide the material belt (b).

8. The web conveyance control system according to claim 7, wherein the positioning mechanism (5) includes:

a fixed plate (51) which is arranged on the bottom surface of a section of feeding track (11), and two sides of the fixed plate extend out of the feeding track (11) and are provided with two shaft holes;

two linear bearings (521) each disposed in one of the shaft holes;

two guide shafts (522) respectively penetrating through one of the linear bearings (521) and being in sliding fit;

a floating seat (53) connected to the upper ends of the two guide shafts (522), on which at least one guide needle (54) is arranged, and the guide needle (54) protrudes toward the top surface of the feeding rail (11);

a connecting seat (55) connected to the lower ends of the two guide shafts (522);

a third driving means configured to insert the guide needle (54) into the guide hole (b 1) of the tape (b) by driving the connection seat (55);

wherein the controller (4) is further in signal connection with the third drive means, and the controller (4) is further configured to:

after the first clamping mechanism (301) is controlled to clamp the material belt (b), the third driving device is controlled to act so as to enable the guide needle (54) to be inserted into the guide hole (b 1) of the material belt (b);

when the controller (4) receives the guide needle (54) fed back from the positioning mechanism (5) and has been inserted into the guide hole (b 1) of the material belt (b), at least one processing mechanism is controlled to act so as to process the material belt (b).

9. The web conveyance control system according to claim 8, wherein the controller (4) is further configured to:

after controlling at least one processing mechanism to act to process the material belt (b), and after the processing mechanism completes one processing task of the material belt (b), controlling the third driving device to act so that the guide needle (54) leaves the material belt (b), and controlling the material pulling mechanism (2), the first material clamping mechanism (301) and the second material clamping mechanism (302) to act so that the material belt (b) moves forward by one step distance.

10. The web conveyance control system according to claim 8, wherein the controller (4) is further configured to:

after controlling the third driving device to act so that the guide needle (54) is inserted into the guide hole (b 1) of the material tape (b), when the controller (4) receives feedback from the positioning mechanism (5) that the guide needle (54) cannot be inserted into the guide hole (b 1) of the material tape (b), an alarm signal is sent.

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