CN117446565A - Continuous braiding equipment for electronic element and method for realizing full-automatic continuous braiding - Google Patents

Abstract

The invention discloses continuous braiding equipment for electronic elements and a method for realizing full-automatic continuous braiding. The device comprises a supporting plane for installing components, a supporting frame for the supporting plane, a multi-disc automatic winding mechanism arranged at the tail end of a carrier tape guiding device, and a covering film material pre-winding mechanism, a sealing tape feeding device and a cutting mechanism arranged between the carrier tape guiding device and the multi-disc automatic winding mechanism. The method mainly comprises the following steps of 1) loading electronic components on a carrier tape, 2) feeding the carrier tape by a carrier tape feeding device, 3) guiding the carrier tape by a carrier tape guiding device, 4) realizing transmission, hot-pressing packaging and rolling of the carrier tape by synchronous action, 5) after the carrier tape is thermally packaged to a set number, leaving an empty carrier tape and separating a covering film material, 6) rapidly lifting the pre-covered film material by a covering film material pre-rolling mechanism, 7) cutting the carrier tape, rapidly rolling the covering film material by a reel, 8) pasting the adhesive tape on the end part of the covering film material, 9) cutting the adhesive tape, changing an upper reel, enabling the end part of the carrier tape to enter an empty reel hole site, and starting new rolling by the empty reel.

Description

Continuous braiding equipment for electronic element and method for realizing full-automatic continuous braiding

Technical Field

The invention relates to the technical field of automatic assembly and packaging processes of electronic elements, in particular to full-automatic taping equipment for realizing continuous automatic heat sealing, cutting and reel storage of a strip material after electronic element assembly and an accurate control method thereof.

Background

The conventional automatic device and manufacturing method for braid electronic components, such as an automatic crystal testing and detecting packaging machine of an authorized bulletin No. CN101499430B, a multi-station crystal oscillator integrated device of CN107499563B, and a manufacturing device and manufacturing method for braid electronic component strings of CN104773317B, can only distinguish 'good products' from 'bad products', then judge the direction and surface condition of the components through a vision system, and braid-package the products judged to be good products, and put the bad products in a recovery area. After the braiding package of a certain amount of products is completed, the equipment still needs to manually change the plate to continue the production of the next plate.

Taking a common 1000-piece crystal oscillator as an example, the equipment can finish rolling and packaging in 30 minutes, as shown in fig. 1. However, after the number of the coils is finished, a blank section of 30-40 cm is reserved on the carrier tape, and 60-100 cm is reserved at the tail end of the upper sealing tape for winding, and then the sealing tape is stuck for fixation. These steps all require manual operations and cannot be automated. The automatic degree is reduced by means of manual disc replacement, and a plurality of problems exist.

Firstly, stopping can interrupt the continuous working state of the detection equipment, and part of detection modules need to be debugged again and zeroed when being restarted, so that the detection efficiency is reduced, and the fault frequency is increased. Secondly, the manual operation is easy to delay, so that the downtime is too long, and the energy consumption is increased. Finally, the all-weather unattended automatic operation cannot be realized, and further optimization of productivity is limited. Therefore, developing a full-automatic disc changing mechanism capable of automatically cutting off the adhesive tape, accurately controlling the length of the adhesive tape and automatically bending and pasting is an important way for realizing high-efficiency continuous production.

In summary, developing a novel full-automatic electronic component detection packaging disc replacement device to realize unattended continuous production is an important improvement direction for improving productivity and quality at present. The key technical problems of automatic adhesive tape cutting, adhesive tape length control, automatic bending and sticking and the like are solved.

Disclosure of Invention

The invention aims at the problems and provides the continuous braiding equipment for the electronic elements, which realizes the automatic operation and the efficient and stable operation of the whole braiding process by arranging the multi-disc automatic winding mechanism, the carrier tape accurate control structure and the high-speed and accurate carrier tape switching mechanism.

The invention aims at realizing the following technical scheme: a continuous braiding apparatus for electronic components is composed of a supporting plane for installing components, a supporting frame for supporting said supporting plane, a carrier band delivering unit fixed to lower part of said supporting plane, a carrier band guiding unit fixed to said supporting plane and arranged along the direction of delivering unit, a coated film delivering unit and a carrier band heat-sealing unit, a carrier band delivering driver for driving said carrier band, a multi-disc automatic winding mechanism, and a coated film pre-winding unit, a sealing adhesive tape delivering unit and a cutting unit.

Preferably, the carrier tape guiding device comprises a linear guide rail and a linear motor, and the heat sealing head of the carrier tape heat sealing mechanism adopts PID to control the temperature. And the linear motor and PID temperature control are adopted to realize the precise control of carrier tape transmission and heat sealing, so that the equipment stability is improved.

Preferably, the driving system of the carrier tape feeding device, the carrier tape guiding device, the multi-disc automatic winding mechanism and the carrier tape heat sealing mechanism adopts a closed-loop control mode. And the driving system is controlled in a closed loop manner, system parameters are adjusted in real time, and control accuracy is improved.

Preferably, the multi-disc automatic winding mechanism comprises a frame body, a rotary seat rotatably arranged on the frame body, a coil mounting plate which is connected with the rotary axis of the rotary seat in a heart mode and can slide relative to the rotary seat, and limiting systems arranged on two sides of the coil mounting plate and used for limiting a sliding range. The swivel mount and the design of slip reel realize reel position adjustment, make things convenient for the carrier tape to accomodate. The limit system ensures that the storage is accurate.

Preferably, the covering film material pre-collecting mechanism comprises a vertically fixed transmission assembly, a sliding seat capable of moving vertically along the transmission assembly and an execution matrix connected with the sliding seat, wherein at least two fixed rollers and at least one movable roller capable of moving vertically between the two fixed rollers are arranged in the execution matrix. The covering film pre-collecting mechanism adopts a sliding seat and a movable roller structure, so that the covering film is pre-collected at high speed, and the subsequent packaging is prepared.

Preferably, the sealing adhesive tape feeding device comprises a fixed seat fixed on the frame body, a movable seat hinged to the fixed seat, an adhesive tape disc rotatably connected to the movable seat, and an adhesive tape unfolding and pushing assembly fixedly arranged on the movable seat. The sealing adhesive tape feeding device adopts a swinging structure, and can accurately spread the adhesive tape and paste the adhesive tape at the end part of the tectorial membrane.

Preferably, the pushing assembly comprises: one end is fixed on the movable seat, the other end extends to the width direction of the adhesive tape, the rolling rod is positioned below the plate, one end is fixed on the movable seat, the other end extends to the width direction of the adhesive tape and exceeds the width of the adhesive tape, the pushing cylinder is fixed on the plate, the sucker seat is arranged at the free end of the piston rod of the pushing cylinder, and at least one sucker is arranged on the sucker seat. The pushing component adopts an air cylinder to drive the sucker structure, so that the unfolding length of the adhesive tape can be accurately controlled, and the adhesive tape and the tectorial membrane are ensured to be reliably adhered.

Preferably, the adhesive tape unfolding pushing assembly of the sealing adhesive tape feeding device is provided with a barrier strip with a nozzle, the barrier strip is made of non-adhesive materials, the main body of the barrier strip is arranged on the rolling rod, and the air passage of the nozzle is arranged in the barrier strip. The design of the barrier strip nozzle optimizes the adhesive tape pasting process, so that the suction cup can suck more reliably.

Preferably, the cutting mechanism adopts a fly-cutting system comprising a fly-cutting knife, and the fly-cutting system is provided with two groups for cutting the carrier tape successively. The fly-cutting system realizes high-speed accurate cutting of the carrier tape and ensures the subsequent packaging quality.

Preferably, an outer pressing wheel is arranged on a rolling station of the multi-disc automatic rolling mechanism, and the outer pressing wheel applies the outermost side of the carrier tape through a spring or a cylinder and other power devices for preventing the rolled carrier tape from rebounding, and the adhesive tape is compacted and stuck at a position after the adhesive tape is stuck. The outer pinch roller can prevent rolling and rebound, and compact the adhesive tape sticking part.

The invention provides a method for full-automatic continuous braiding by using the equipment, which is characterized by comprising the following steps:

1) Loading an electronic component on the carrier tape;

2) The carrier tape feeding device feeds the carrier tape;

3) The carrier tape guiding device guides the carrier tape;

4) The carrier tape transmission driving device, one reel of the multi-reel automatic winding mechanism and the carrier tape heat sealing mechanism synchronously act to transmit, heat-press package and roll the carrier tape with the electronic components;

5) After the hot-pressing package reaches the set quantity, a section of empty strip is reserved, and when the empty strip is transmitted between the multi-disc automatic winding mechanism and the carrier tape guiding device, the reel in the multi-disc automatic winding mechanism stops acting;

6) The carrier tape transmission driving device continues to transmit, and the carrier tape is separated from the covering film material;

7) The executing part in the covering film material pre-collecting mechanism rapidly and upwardly lifts the covering film material for pre-collecting, and the pre-collecting length can surround the strip plate for more than one circle;

8) The cutting mechanism cuts off the carrier tape, the reel is rapidly rolled up, the speed of the rolling up of the covering film material pre-rolling mechanism is reduced in cooperation with the rolling up speed of the rolling up until the pre-rolled covering film material is fully rolled up, the covering film material pre-rolling mechanism is far away from the covering film material, and the cutting mechanism cuts off the covering film material;

9) The execution part of the sealing adhesive tape feeding device is used for bonding the sealing adhesive tape to the end part of the cut covering film material, and the adhesive tape with a certain length is unfolded through swinging, so that the reel continues to roll until the adhesive tape and the covering film material meet the bonding length required by packaging;

10 The automatic multi-disc winding mechanism integrally rotates, a packaged reel is far away from a winding position, a new empty reel is replaced through a mechanical arm and the like, the empty reel at the other end is close to the end of the cut carrier tape, the end of the carrier tape enters a hole site in the reel for receiving the end of the carrier tape through the rotation fit of an inductor and the reel, the reel starts to rotate to perform new winding work, and the reel entering the winding work moves to the winding position.

Preferably, in step 4, a guiding groove plate is fixedly installed on the side surface of the frame body of the multi-disc automatic winding mechanism.

Preferably, the guide groove plate is provided with a long hole, the long side of the long hole extends along the sliding direction of the carrier tape, a guide auxiliary pushing cylinder and a negative pressure adsorption head are arranged below the guide groove plate, the movable range of the adsorption head is positioned in the long hole, when the carrier tape slides downwards to be close to the empty reel hole site, the adsorption head sucks the carrier tape, and the pushing cylinder pushes the carrier tape to move, so that the carrier tape is accurately butted and enters the empty reel hole site.

The method discloses a specific workflow of realizing full-automatic continuous braiding by equipment in detail, and the key steps of carrying out transmission, heat sealing, coiling, cutting, pre-coiling of covering film materials, pasting of sealing adhesive tapes and the like are sequenced, so that the detailed technical process of automatic coil replacement of the device is clarified, and the method is favorable for understanding and applying the method to realize high-speed and accurate full-automatic continuous braiding production.

In summary, compared with the prior art, the invention has the following advantages:

1. the automatic winding mechanism with multiple discs is adopted, so that automatic switching and reel changing of the carrier tape are realized, automation is realized in the whole braiding process, and the risk of manual operation is reduced.

2. The carrier tape transmission accurate control structure is arranged, and comprises a linear motor, a PID temperature control thermal head and a closed-loop control driving system, so that the accuracy and stability of carrier tape transmission and heat sealing are improved.

3. The high-speed accurate carrier tape switching mechanism is designed, and comprises a cover film pre-collecting mechanism, a sealing adhesive tape feeding device and a fly-cutting system, so that the high-speed stable switching of the carrier tape can be realized.

4. The multi-disc winding mechanism adopting the rotary seat sliding design is convenient for loading, unloading and positioning of the no-load disc and enhances the automation level.

5. Various auxiliary devices such as a limiting system, an external pressing wheel, an adhesive tape feeding optimizing structure and a carrier tape guiding mechanism are arranged, so that the accuracy of carrier tape storage, packaging and switching is ensured.

In conclusion, the full automation of the braiding process is realized, the number of manual operation times is greatly reduced, the work efficiency is improved, and the risk of human errors is reduced. Meanwhile, various precise control, transmission and switching mechanisms are adopted, so that the high-speed stable operation and the product quality of the whole automatic braiding process are ensured. Overall, the invention greatly improves the automation level and the working efficiency of the braiding device. .

Drawings

FIG. 1 is a flow chart of a fully automatic continuous taping method using the apparatus of the present invention;

FIG. 2 is a schematic view of a package device of the present invention, with portions of the structure cut away;

FIG. 3 is a schematic view of a packaging apparatus of the present invention at another angle, with portions of the structure cut away;

FIG. 4 is a schematic view of a packaging apparatus according to another embodiment of the present invention, in which a part of the structure is cut away (the figure is focused on showing a state where the cover film and the carrier tape are separated);

FIG. 5 is a schematic view of a packaging apparatus according to the present invention at another angle, wherein a part of the structure is cut away (this view is focused on showing a state where the cover film and carrier tape are cut away);

FIG. 6 is a schematic view of a packaging apparatus according to another embodiment of the present invention, wherein a part of the structure is cut away (the figure is focused on showing a state that the cover film is pre-folded);

fig. 7 is a front view of the packaging apparatus, partially cut away (this figure highlights the state where the tape is to be detatched);

FIG. 8 is a schematic view of a finished electronic component reel (package with adhesive openings open);

FIG. 9 is a schematic view of a packaging apparatus of the present invention at another angle, wherein a part of the components are in an exploded state and a part of the structure is cut away (this view is focused on showing the state that the cut carrier tape will enter a new reel);

fig. 10 is a structural view of a guide groove plate;

fig. 11 is a structural view of the facing film pre-winding mechanism.

The marks in the figure: the support plane 1, the support frame 11, the carrier tape feeding device 2, the carrier tape guiding device 3, the carrier film feeding device 4, the carrier tape heat sealing mechanism 5, the carrier tape transfer driving device 6, the winding device 7, the reel 01, the carrier tape 02, the carrier film 03, the seal tape 04, the multi-reel automatic winding mechanism 70, the frame body 71, the swivel mount 72, the reel mounting plate 73, the limit pulley 731, the long hole 732, the pressing piece 733, the first motor 734, the second motor 735, the third motor 736, the third motor 737, the carrier film pre-winding mechanism 80, the slide seat 82, the execution base 83, the pushing cylinder 84, the roller 85, the fixed roller 851, the movable roller 852, the power assembly 853, the seal tape feeding device 90, the fixed seat 91, the movable seat 92, the pushing assembly 93, the plate 931, the rolling lever 932, the pushing cylinder 933, the suction cup holder 934, the suction cup 935, the barrier 936, the cutting mechanism 100, the outer pressing wheel 200, the tensioning mechanism 300, the pressing wheel 400, the guide groove plate 500, the long hole 501, the guide auxiliary pushing cylinder 502, and the negative pressure suction head 503.

Detailed Description

The invention is further described below with reference to the embodiments shown in all the drawings:

example 1

The technical scheme provides continuous braiding equipment for electronic components, and reference is made to fig. 2. For ease of illustration, a coordinate system is defined in which the Z-axis represents the direction of gravity, the X-axis and Y-axis define the two directions of the horizontal plane, and the three axes are orthogonal. In the following description, a direction parallel to the Y axis is also referred to as a "depth direction Y", and a direction parallel to the Z axis is also referred to as a "vertical direction Z".

The apparatus comprises a bearing plane 1 for assembly installation, a support frame 11 supporting the bearing plane;

the carrier tape winding device comprises a carrier tape feeding device 2 fixed below a supporting plane, a carrier tape guiding device 3 fixed on the supporting plane and laid along a carrier tape running path, a covering film material feeding device 4 and a carrier tape heat sealing mechanism 5 which are erected above the carrier tape guiding device, a carrier tape conveying driving device 6 and a winding device 7 which is arranged in a straight line with the carrier tape guiding device 3 and used for winding the carrier tape. The feeding material of the covering film material feeding device 4 and the carrier tape are synchronously moved after heat sealing.

The key structural improvements are focused on the carrier tape transport and take-up mechanism. Fig. 1 shows a carrier tape reel for finishing winding, which comprises a carrier tape reel 01, a carrier tape 02, a covering film material 03 and a sealing adhesive tape 04. For ease of viewing, the tape was not adhered.

On the basis of the automatic reel changing device, the original reel-up device 7 is changed to realize automatic reel changing by using a multi-disc automatic reel-up mechanism 70, and a cover film material pre-reel-up mechanism 80, a sealing tape feeding device 90 and a cutting mechanism 100 are arranged between the reel-up device and the guiding device.

The covering film material pre-collecting mechanism 80 can set the lifting position of the executing part of the covering film material pre-collecting mechanism in an accessible range, the cutting mechanism 100 can enable the position of the executing part of the covering film material pre-collecting mechanism to be accessible at any position required by the X axis, the Y axis and the Z axis, and the sealing tape feeding device 90 can enable the executing part of the covering film material pre-collecting mechanism to drag the sealing tape to contact and adhere with the covering film material;

the newly added devices and mechanisms are matched with the modules of the original conveying power device, the heat sealing mechanism and the like in a coordinated manner, so that full-automatic packaging and winding are realized.

The specific working flow is as follows:

step one, placing qualified electronic components subjected to testing into a carrier tape by an electronic component transferring and orienting device;

step two, the carrier tape transmission driving device 6 and one reel of the multi-reel automatic winding mechanism 70 and the carrier tape heat sealing mechanism 5 synchronously act, and the carrier tape with the electronic components is packaged by hot pressing and is wound simultaneously when being transmitted;

step three, after the hot-pressing packaging reaches the set quantity, reserving about 30 cm of carrier tape, and stopping the reel when the empty carrier tape is transmitted between the reel and the carrier tape guiding device 3;

step four, the carrier tape transmission driving device 6 continues to transmit (thereby, the carrier tape is separated from the covering film material in the state shown in fig. 3, and the space separated from the carrier tape gives the space for the covering film material pre-receiving mechanism 80 to enter);

step five, the executing part of the covering film material pre-collecting mechanism 80 rapidly lifts the covering film material upwards to pre-collect the length for being capable of surrounding the carrying disc for 1.5 circles, and the lifted state is shown in fig. 2;

step six, the carrier tape is cut off by the cutting mechanism 100, the reel is rapidly rolled up, the speed of the rolling up of the covering film material pre-rolling mechanism 80 is reduced until the pre-rolled covering film material is fully rolled up, the covering film material pre-rolling mechanism 80 is far away from the covering film material, and the cutting mechanism 100 cuts off the covering film material;

step seven, the execution part of the sealing adhesive tape feeding device 90 is used for adhering the sealing adhesive tape to the end part of the cut covering film material, the sealing adhesive tape feeding device 90 is used for unwinding a certain adhesive tape length through swinging, and the reel is continuously rolled until the adhesive tape and the covering film material are finished and meet the adhering length required by packaging;

meanwhile, the truncated carrier tape is gradually lengthened under transmission;

the automatic multi-disc winding mechanism 70 rotates integrally, the packaged reel is far away from the winding position, so that the empty reel can be replaced by other reels such as a mechanical arm and a sucking disc, the other end of the empty reel is close to the end of the cut carrier tape, the end of the carrier tape enters the hole by setting up the rotation fit of an inductor and the reel (the inside of each reel is provided with at least one hole for receiving the end of the carrier tape), the reel is started to rotate to start the new winding operation, and the automatic multi-disc winding mechanism 70 rotates integrally to enable the reel entering the winding operation to reach the normal winding position.

The double-reel design solves the defect that the traditional single reel needs to be stopped for disc replacement, realizes the whole automatic packaging and winding process, greatly improves the automation level and the working efficiency, and realizes the real continuous production.

Regarding the multi-disc automatic winding mechanism 70, in this embodiment, two discs are taken as an example, but the practical application is not limited to two discs, the specific structure is further refined according to the following, and the multi-disc automatic winding mechanism comprises a frame 71 for providing support for the device, a rotary seat 72 rotatably installed in the frame, a coil mounting plate 73 which is centered on the axis of rotation of the rotary seat and is abutted against or parallel to the large surface of the rotary seat and can slide relative to the rotary seat, the length direction size of the coil mounting plate needs to accommodate and install two coils, the centers of one sides of the two coil faces are in the same plane, and the plane is co-located with the center in the carrier tape direction. The slide position of the reel mounting plate 73 is defined by providing a plurality of stopper pulleys 731 abutting on both sides in the length direction in the present embodiment.

The purpose of the spool mounting plate 73 being slidable is to make the distance and angle between the spool mounting plate 73 and the sealing tape feeding device 90 change during the seventh sealing tape pasting process, so that reliable pasting can be achieved through more flexible matching; on the other hand, when the end of the carrier tape is docked with the reel hole site in the eighth step, and the carrier tape extends downward beyond the hole site without docking, the reel mounting plate 73 can slide downward integrally to enable the end of the carrier tape to come above the hole site again, so that the connection is completed;

therefore, a long hole 732 is provided in the middle of the reel mounting plate 73 at a certain angle to the longitudinal direction of the mounting plate, a reducing or other pressing member 733 capable of changing the contact point and the center distance is provided in the long hole, and the pressing member is rotated by providing power so that the whole of the reel mounting plate 73 is positioned at different positions when the reel mounting plate 73 is rotated at different positions.

Referring to fig. 6, the structure of the facing film pre-retracting mechanism 80 includes a vertically disposed driving assembly (not shown) fixedly connected to the frame 71, a slide 82 traveling along a driving path of the driving assembly, an actuating base 83 located on one side of a working surface of the slide 82, a pushing cylinder 84 having a main body fixed to the slide 82 and a piston rod free end of the slide being fixedly connected to the actuating base 83, a roller 85 fixedly mounted on the actuating base 83, and a moving path of the pushing cylinder 84 being a depth direction. The power source of the sliding seat 82 is not shown in the figure, the sliding seat 82 is pushed to lift so that the roller 85 is matched with the covering film material in the height direction, the roller 85 is matched with the covering film material in the depth direction by the pushing cylinder 84, and the pre-receiving and releasing of the covering film material are completed under the cooperative cooperation of the two power sources, so that the continuous operation of the equipment is ensured.

In order to reduce the moving distance of the sliding seat when the covering film material is pre-received, the roller of the pre-receiving mechanism is optimally provided with at least two fixed rollers 851 and at least one movable roller 852, wherein the distance between the two fixed rollers is enough for the movable rollers to pass through. The movable roller is driven by the power component 853, and in operation, the movable roller is positioned below the two fixed rollers and a neutral position is reserved for allowing the covering film material to enter. The sliding seat moves upwards and the power assembly drives the movable roller to move downwards, so that the pre-covered film material can be finished under the condition of reducing the lifting height of the sliding seat. When the equipment continuously works at a high speed, the time and the space for lifting and collecting the film are very necessary, and by adopting the optimization scheme, the working stroke of the sliding seat can be greatly reduced, the driving stroke of the power assembly is also reduced, and the improvement of the working rhythm is facilitated. Meanwhile, the contact surface with the covering film material is increased due to the design of the rollers, so that the stable pre-receiving covering film material is facilitated. The optimization scheme improves the working efficiency and reliability of the pre-harvest coating film material mechanism.

Referring to fig. 5, the specific structure of the sealing tape feeding device 90 includes:

a fixing seat 91 fixed to the frame 71;

a movable seat 92 which is hinged with the fixed seat 91 and is connected with the tape reel in a detachable mode is arranged, and the position of the tape reel in the process of revolving the movable seat 92 is higher than the position of the carrier tape in the normal rolling process;

a power section (not shown) drivingly connected to the movable base 92;

a pushing component 93 for fixing the starting end of the adhesive tape and extending the adhesive tape forwards; the pushing assembly 93, referring to fig. 7-8, includes: a plate 931 having one end fixed to the movable seat 92 and the other end extending in the width direction of the tape, a rolling rod 932 having one end fixed to the movable seat 92 and the other end extending in the width direction of the tape and exceeding the width of the tape, the rolling rod 932 being made of a material which is not easily sticky, such as silica gel, polytetrafluoroethylene, etc.; a pushing cylinder 933 fixed on the plate 931, a sucker seat 934 mounted on the free end of the piston rod of the pushing cylinder, at least one sucker 935 provided on the sucker seat, the suction opening of the sucker facing downwards, i.e. towards the back of the adhesive tape; when the adhesive tape is used for the first time, the starting end of a new adhesive tape needs to be manually passed over the rolling rod to the lower part of the sucker. When the adhesive tape is in operation, the suction disc sucks the back of the adhesive tape under negative pressure, so that the adhesive surface faces outwards, and the adhesive tape is convenient to contact with the covering film material. The pushing cylinder can flexibly push the length of the adhesive tape. The rolling rod made of non-adhesive material can avoid adhesive tape. The optimized scheme enables the pushing component to spread the adhesive tape more stably and reliably, and is convenient for first use.

In order to make the sucking disc absorb the adhesive tape more easily, a blocking strip 936 with a nozzle is arranged on the adhesive tape bonding surface, the blocking strip is made of non-adhesive materials, the main body of the blocking strip is arranged on the rolling rod, and the air passage of the nozzle is arranged in the blocking strip. Therefore, after one-time pasting is completed, the adhesive tape can fall on the barrier strip, so that the suction nozzle is more close to the adhesive tape, and the suction nozzle is favorable for adsorption. Further, the air flow sprayed by the nozzle can blow the adhesive tape to the suction nozzle, so that the suction is more easily finished. The nozzle design on the barrier strip makes the sucking disc absorb the process of sticky tape more smooth and reliable, can further improve the stability of sealing feed. At the winding station of the multi-disc automatic winding mechanism 70, an outer pressing wheel 200 is provided, and the outer pressing wheel 200 is kept at the outermost side of the pressing carrier tape by a power device (not shown in the figure) such as a spring or a cylinder during winding, so as to prevent the spring back of the wound carrier tape, and is also used for compacting the adhesive position after the adhesive tape is adhered.

Between the carrier tape transport driving device 6 and the multi-reel automatic winding mechanism 70, a tension mechanism 300 is provided. A pinch roller 400, which can be far away or close to the tensioning mechanism 300, is arranged below the tensioning mechanism, and the power source of the pinch roller is a cylinder (not shown in the figure). The pinch roller is used for temporarily fixing the carrier tape or increasing the friction force of the carrier tape by clamping. For example, the carrier tape is fixed and separated from the facing film material in the fourth working procedure, or the facing film material is kept in tension after being cut in the seventh working procedure, so that the winding and the tape pasting are facilitated.

Referring to fig. 9, a guide groove plate 500 is fixedly installed on a side surface of the frame 71 so that the cut carrier tape can more easily enter the hole of the empty reel. The carrier tape can slide downwards along the guide groove plate after falling down so as to accurately butt joint the hole site of the empty reel. In order to further control the guiding of the carrier tape, a long hole 501 is provided on the side of the guide groove plate 500 close to the reel, and the long side of the long hole 501 extends along the sliding direction of the carrier tape. A guiding auxiliary pushing cylinder 502 is arranged below the guiding groove plate 500, a negative pressure adsorption head 503 is arranged on the cylinder, and the movable range of the adsorption head is positioned in the strip hole 501. When the carrier tape slides down to be close to the reel hole site, the adsorption head attracts the carrier tape, and the pushing cylinder pushes the carrier tape to move, so that the flexible carrier tape obtains a certain rigidity and controllable advancing speed, which has important significance for correctly entering the reel hole site. According to the carrier tape guiding optimization scheme, the carrier tape in the process of packaging and reel changing can accurately and controllably enter the empty reel, and reel changing failure caused by errors is avoided.

The invention also has a scheme for further optimization and refinement, which is specifically as follows:

1. in the first step, considering that electronic components of different models and batches may have small differences in size and positioning hole positions, the electronic component transferring and orienting device may be designed with a plurality of replaceable gripping heads, and a proper gripping head is selected according to actual electronic component types. The vacuum suction system for sucking the electronic component by the grabbing head also needs to design different suction surface shapes.

2. In the second step, the driving of the carrier tape power device 6 may be considered to adopt a servo motor, and the closed-loop control of the carrier tape moving speed and position is realized in cooperation with an encoder, so as to ensure the stability of the carrier tape moving. The rotational speed of the take-up reel is controlled in a similar closed loop control manner. The heat-sealing head temperature of the heat-sealing mechanism 5 needs to be precisely controlled, and an independent temperature control loop can be designed.

3. In step three, the control system combines the feedback signals of the encoder to calculate the distance the carrier tape moves so as to accurately position the length of the empty tape. The position of the empty tape section between the reel and the guide 3 can also be detected by a photoelectric sensor.

4. In the fifth step, the substrate of the covering film material pre-retracting mechanism 80 may be driven by a pneumatic cylinder or a servo motor, and torque or pressure needs to be controlled during lifting to prevent damage to the covering film material.

5. In step six, if the pre-harvest length of the cover film material is slightly insufficient, a belt sensor may be provided, and when the cover film material is about to be fully rolled up, an advance warning is given, and the rotation speed of the reel is reduced to prevent the cover film material from being excessively stretched.

6. In step seven, the control of the tape application length can be achieved by setting the reel to be wound up by a specific distance.

7. In step eight, the process of entering the tail end of the carrier tape into the reel hole may be provided with a positioning guide device or an induction centering mechanism to achieve accurate alignment.

Example 2:

this embodiment further improves the carrier tape transport system on the basis of embodiment 1.

In order to realize accurate positioning control of the carrier tape, the carrier tape guiding device adopts a precise linear guide rail instead, and the guide rail is combined with a high-precision linear motor to realize closed-loop control of the position of the carrier tape through closed-loop control. The position feedback of the motor adopts a grating ruler to carry out high-precision coding.

The carrier tape feeding device and the winding device are driven by a servo motor, and a driven encoder is arranged to realize double closed-loop control of speed/position. The two ends of the winding device are respectively provided with a force transducer, the winding tension is detected in real time, and the feedback is fed back to the motor to complete tension closed-loop control.

The carrier tape heat sealing mechanism adopts a precise numerical control cylinder as an execution matrix instead, and is matched with a guide rail to finish the precise positioning of carrier tape pause packaging. The temperature of the thermal head is controlled by a PID temperature control system.

The motion system comprehensively adopts closed-loop servo control, so that accurate planning and control of speed, position and tension in the carrier tape conveying process can be realized, stable motion of the carrier tape is ensured, and packaging quality is improved.

Example 3:

this embodiment optimizes and improves the cutting mechanism on the basis of embodiment 1.

The high-speed fly-cutting mode is adopted to realize high-speed accurate cutting:

1) The cutting execution matrix is a group of high-speed fly cutters and comprises annular blades which are arranged on a high-speed rotating main shaft.

2) The cutting tissue is combined with a linear sliding table driven by a servo motor, and the flying cutter can fly to cut at a high speed in the carrier band width direction.

3) The sliding table moving track and the speed curve are planned by a control system, and closed-loop control is realized by combining encoder feedback.

Two groups of mutually independent fly-cutting systems are arranged, so that the carrier tapes can be cut at the same time, the two systems are staggered, the first group is used for finishing precutting, and the second group is used for precisely cutting the carrier tapes.

In addition, a laser opposite longitudinal system is arranged at the cutting position, the moving position of the carrier tape is detected, signals are fed back to a controller in the fly-cutting system, the cutting time of the fly-cutting knife is corrected in real time, and high-precision cutting fixed length control is realized.

The fly-cutting mode is adopted, and two groups of cutting systems are matched, so that high-speed and accurate chipless cutting can be realized, the automatic roll changing efficiency is greatly improved, and the method is suitable for high-speed continuous production.

Claims (13)

1. A continuous braiding apparatus for electronic components includes a supporting plane (1) for mounting components, a supporting frame (11) for supporting the supporting plane, a carrier tape feeding device (2) fixed below the supporting plane, a carrier tape guiding device (3) fixed on the supporting plane and arranged along a direction in which the carrier tape feeding device is arranged, a cover film feeding device (4) and a carrier tape heat sealing mechanism (5) arranged above the carrier tape guiding device, a carrier tape transfer driving device (6) for driving the carrier tape, and a multi-tray automatic winding mechanism (70) arranged at an end of the carrier tape guiding device, wherein a cover film pre-winding mechanism (80), a seal tape feeding device (90) and a cutting mechanism (100) are arranged between the carrier tape guiding device (3) and the multi-tray automatic winding mechanism (70).

2. The electronic component continuous taping device according to claim 1, wherein the carrier tape guiding means (3) comprises a linear guide rail and a linear motor, and the heat sealing head of the carrier tape heat sealing mechanism (5) is temperature controlled by PID.

3. The electronic component continuous taping device according to claim 1, wherein the drive systems of the carrier tape feeding means (2), the carrier tape guiding means (3), the multi-reel automatic winding mechanism (70) and the carrier tape heat sealing mechanism (5) are all in a closed-loop control manner.

4. The continuous braiding apparatus of claim 1, wherein the multi-reel automatic winding mechanism (70) comprises a frame (71), a rotary base (72) rotatably provided on the frame (71), a reel mounting plate (73) connected with the rotary axis of the rotary base and slidable with respect to the rotary base, and a limiting system provided on both sides of the reel mounting plate for limiting a sliding range.

5. The continuous braiding apparatus of claim 1, wherein the facing film pre-retracting mechanism (80) comprises a vertically fixed transmission assembly, a carriage (82) vertically movable along the transmission assembly, and an actuating base connected to the carriage, wherein at least two fixed rollers (851) are fixedly arranged in the actuating base, and at least one movable roller (852) vertically movable between the two fixed rollers.

6. The continuous taping device for electronic parts according to claim 4, wherein the sealing tape feeding device (90) comprises a fixed seat (91) fixed on the frame body (71), a movable seat (92) hinged to the fixed seat (91), a tape tray rotatably connected to the movable seat, and a tape unfolding pushing assembly (93) fixedly arranged on the movable seat.

7. The electronic component continuous taping device according to claim 6, wherein the push assembly (93) comprises: a plate body (931) with one end fixed on the movable seat (92) and the other end extending to the width direction of the adhesive tape, a rolling rod (932) with one end fixed on the movable seat (92) and the other end extending to the width direction of the adhesive tape and exceeding the width of the adhesive tape, a pushing cylinder (933) fixed on the plate body (931), a sucker seat (934) arranged at the free end of the piston rod of the pushing cylinder, and at least one sucker (935) arranged on the sucker seat.

8. The continuous braiding apparatus for electronic components according to claim 7, wherein a tape spreading and pushing assembly (93) of the sealing tape feeding device (90) is provided with a barrier strip (936) with a nozzle, the barrier strip is made of a non-adhesive material, a main body of the barrier strip is arranged on a rolling rod, and an air passage of the nozzle is arranged in the barrier strip.

9. The electronic component continuous taping device according to claim 1, wherein the cutting mechanism (100) employs a fly-cutting system comprising fly-cutting blades, the fly-cutting system being provided with two groups, cutting the carrier tape one after the other.

10. The continuous taping device for electronic parts according to claim 1, wherein an outer pinch roller (200) is provided at a winding station of the multi-reel automatic winding mechanism (70), and the outer pinch roller applies the outermost side of the carrier tape by a power means such as a spring or a cylinder for preventing the wound carrier tape from rebounding and compacting the adhesive position after the adhesive tape is adhered.

11. A method of fully automatic continuous braiding using the apparatus of any of claims 1-8, comprising the steps of:

1) Loading an electronic component on the carrier tape;

2) The carrier tape feeding device (2) feeds the carrier tape;

3) The carrier tape guiding device (3) guides the carrier tape;

4) The carrier tape transmission driving device (6), a reel of the multi-reel automatic winding mechanism (70) and the carrier tape heat sealing mechanism (5) synchronously act to transmit, heat-press package and roll the carrier tape with the electronic components;

5) After the hot-pressing package reaches the set quantity, a section of empty strip is reserved, and when the empty strip is transmitted between the multi-disc automatic winding mechanism (70) and the carrier tape guiding device (3), the reel in the multi-disc automatic winding mechanism (70) stops acting;

6) The carrier tape transmission driving device (6) continues to transmit, and the carrier tape is separated from the covering film material;

7) An executing part in the covering film material pre-collecting mechanism (80) rapidly lifts the covering film material upwards for pre-collecting, and the pre-collecting length can surround the strip plate for more than one circle;

8) The cutting mechanism (100) cuts off the carrier tape, the reel is rapidly rolled up, the speed of the rolling up of the covering film material pre-rolling mechanism (80) is reduced until the pre-rolled covering film material is fully rolled up, the covering film material pre-rolling mechanism (80) is far away from the covering film material, and the cutting mechanism (100) cuts off the covering film material;

9) The execution part of the sealing adhesive tape feeding device (90) bonds the sealing adhesive tape to the end part of the cut covering film material, and the adhesive tape with a certain length is unfolded through swinging, and the reel continues to roll until the adhesive tape and the covering film material meet the bonding length required by packaging;

10 The cutting mechanism (100) cuts off the sealing adhesive tape, an execution part of the sealing adhesive tape feeding device (90) is reset, the multi-disc automatic winding mechanism (70) integrally rotates to finish the separation of the packaged reel from the winding position, a new empty reel is replaced by a mechanical arm and the like, the empty reel at the other end is close to the end part of the cut-off carrier tape, the end part of the carrier tape enters a hole site in the reel for receiving the end part of the carrier tape through the rotation fit of an inductor and the reel, the reel starts to rotate to perform new winding work, the multi-disc automatic winding mechanism (70) integrally rotates, and the reel entering the winding work moves to the winding position.

12. The method according to claim 10, wherein in the step 4, a guide groove plate (500) is fixedly installed on a side of a frame body (71) of the multi-disc automatic winding mechanism (70).

13. The method of claim 12, wherein the guiding grooved plate (500) is provided with a long hole (501), the long side of the long hole extends along the sliding direction of the carrier tape, a guiding auxiliary pushing cylinder (502) and a negative pressure adsorption head (503) are arranged below the guiding grooved plate (500), the movable range of the adsorption head is positioned in the long hole (501), and when the carrier tape slides down to be close to the empty reel hole site, the adsorption head attracts the carrier tape, and the pushing cylinder pushes the carrier tape to move, so that the carrier tape is accurately butted and enters the empty reel hole site.