CN218951638U - Full-forming braiding rake control connection structure - Google Patents
Full-forming braiding rake control connection structure Download PDFInfo
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- CN218951638U CN218951638U CN202223499759.8U CN202223499759U CN218951638U CN 218951638 U CN218951638 U CN 218951638U CN 202223499759 U CN202223499759 U CN 202223499759U CN 218951638 U CN218951638 U CN 218951638U
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- 238000009954 braiding Methods 0.000 title claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 35
- 238000009940 knitting Methods 0.000 claims description 59
- 239000004744 fabric Substances 0.000 claims description 29
- 230000000694 effects Effects 0.000 claims description 22
- 230000009471 action Effects 0.000 claims description 4
- 230000010354 integration Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 8
- 230000008859 change Effects 0.000 description 6
- 238000009941 weaving Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 238000009958 sewing Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 102100038804 FK506-binding protein-like Human genes 0.000 description 1
- 101001031402 Homo sapiens FK506-binding protein-like Proteins 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/02—Total factory control, e.g. smart factories, flexible manufacturing systems [FMS] or integrated manufacturing systems [IMS]
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Abstract
The utility model discloses a full-formed braiding rake control connection structure, which comprises a control main board, a machine head MCU main control chip and a rake driving board provided with a rake control chip; the control main board is respectively in communication connection with the head MCU main control chip and the rake control chip; the control main board is in communication connection with a servo driver and is in driving connection with a machine head motor through the servo driver; the rake control chip is in driving connection with the corresponding stepping motor; the utility model has simple integral control structure, flexible, precise, stable and reliable control, high integration level of the control structure and low manufacturing cost, and is suitable for large-scale popularization and application.
Description
Technical Field
The utility model belongs to the field of control of full-automatic computerized flat knitting machines, and particularly relates to a full-formed knitting rake control connection structure.
Background
The full-automatic computerized flat knitting machine is a mechanical tool for automatically knitting various clothes by designing pattern files through software. When the existing full-automatic computerized flat knitting machine is used for knitting clothes, the front clothes piece, the rear clothes piece and the sleeve pieces are divided into a plurality of large cloth pieces, the cloth pieces are knitted according to proportion, and various clothes pieces are sewn into a whole clothes by a dial stitching worker, so that the automatic knitting efficiency of the clothes is obviously affected.
However, in order to achieve the full-forming knitting effect (specifically, a whole garment is directly knitted by one yarn without manual sewing), some technical difficulties are faced, as follows:
the knitting process of the flat knitting machine is to push the knitting needles on the needle plate by the action of the machine head, and the knitting needles pass through the yarns to form loops by knitting, and the knitting machines need a pulling force to pull downwards in the process to pull the knitted fabric, so that the knitted fabric can complete knitting of one row, and finally complete clothing is formed. The existing flat knitting machine is usually characterized in that a fabric is clamped by a high-level roller, the fabric is pulled downwards by downward friction force generated between the roller rubber and the knitted fabric when the roller rotates downwards, the high-level roller structure is provided with front and rear whole roller rods, the silica gel rubber is sleeved outside the high-level roller structure, the whole roller rods rotate when the high-level roller structure rotates, and the tension of the roller can be adjusted by adjusting the rotating speed of the roller, so that the tension of the roller on the same row of fabric is consistent when the same row of fabric is knitted, and the traditional single-piece knitting requirement can be met.
However, the full-stroke knitting is different from the single-sheet knitting, for example, when knitting in the same row, some parts in the row may be sleeves, some parts may be front pieces, some parts may be rear pieces, and some parts may be shoulder or shoulder blades; that is, the positions of the clothes woven in the same row may be different, the weaving structures in the same row are changeable, and obviously the tension adapted to the different weaving structures is different, but the existing high roller control cannot meet the requirement of the full-forming weaving effect.
Therefore, based on the intensive research and development experience of the applicant in the computerized flat knitting machine, the realization of the efficient full-forming knitting effect by searching for a technical scheme is hoped.
Disclosure of Invention
In view of the above, the utility model aims to provide a full-formed braiding rake control connection structure which has the advantages of simple overall control structure, flexible, precise, stable and reliable control, high integration level of the control structure and low manufacturing cost, and is suitable for large-scale popularization and application.
In the development process, the applicant firstly thinks of changing the tension of the roller according to the conventional teaching of the technical problem, and specifically comprises the following steps:
first, change the high roller friction: under the condition that the original roller structure is unchanged, a pressure motor is added on the outer side of a roller rod to push a roller rod, the partial roller tension is adjusted by changing the pressure of the partial roller rod, and 18-24 pressure motors are usually arranged on one roller rod; the structure is easy to realize, but the control precision is not high, the friction force of the roller to the fabric is changed by increasing the pressure between the rollers, the effect of adjusting the tension is not accurate enough, and the simple knitting of general clothes tissues can be only met.
Second, changing the roller rotation speed: the original front rod of the roller is replaced by a segmented roller, then a small stepping motor is arranged in each segment of roller, and the rotating speed of the motor arranged in each segment of roller is adjusted, so that the tension of each segment is changed, and the rear rod still rotates together with the whole rod. In general, the roller rod is divided into 12-16 sections and is provided with built-in motors, the structural control is better, the partial roller tension control is better, but the rotating speeds of the motors of the front rod and the rear rod are asynchronous, the control is better when the tension is increased, and the tension is reduced and is not better controlled because the rear rod rotates all the time when the tension is reduced.
Therefore, the inventor of the application provides a rake control technology after exploring and trying, overturns the traditional roller tension control mode, and finally provides the application after experimental verification.
The technical scheme adopted by the utility model is as follows:
a full-formed braiding rake control connection structure comprises a control main board, a machine head MCU main control chip and a rake driving board provided with a rake control chip; wherein,,
the control main board is respectively in communication connection with the head MCU main control chip and the rake control chip;
the control main board is in communication connection with a servo driver and is in driving connection with a machine head motor through the servo driver;
the rake control chip is in driving connection with the stepping motor corresponding to the rake control chip.
Preferably, a position sensor is installed on a machine head of the computerized flat knitting machine, and the position sensor is in communication connection with the control main board and is used for sending a machine head position signal to the control main board.
Preferably, the device comprises at least 2 rake driving boards, wherein at least 6 rake control chips are integrated on each rake driving board, and the rake driving boards are in communication connection through CAN communication.
Preferably, the device comprises at least 6-12 rake driving boards, wherein 6-12 rake control chips are integrated on each rake driving board, and the rake driving boards are in communication connection through CAN communication.
Preferably, each rake control chip is in control connection with 1 stepping motor, wherein the output end of each stepping motor is provided with and connected with a rake, and the independent pulling effect on the fabric is realized through the up-down lifting action of the rake.
Preferably, the stepper motors are respectively arranged in a front plate knitting area and a rear plate knitting area, wherein the number of the stepper motors arranged in the front plate knitting area and the rear plate knitting area is the same, and the stepper motors in the front plate knitting area and the rear plate knitting area are distributed in a close side-by-side shape.
Preferably, each stepper motor has an axial dimension in the range of 1.5-3.5cm.
Preferably, the control main board is in communication connection with the rake control chip through a CAN repeater.
Preferably, the rake control chip adopts a DRV8424RGER driving control chip; the machine head MCU main control chip adopts an STM32F103VC model chip; and the control main board adopts an STM32F429IGT6 type chip.
Preferably, the control main board is in communication connection with the head MCU main control chip and the rake control chip through CAN communication respectively.
The "rake" referred to throughout this application may be in the shape of a hook or other structural shape that can pull the fabric, and is not particularly limited in this application, and may be selected by those skilled in the art according to actual needs.
The roller tension control device structurally overturns the traditional roller tension control mode, can achieve independent tension control effect in a very small range (preferably not more than 5cm, more preferably 1.5-3.5 cm) interval, and can even achieve separation of front and rear plate tensions (the front plate rakes and the rear plate rakes can be alternately distributed at intervals); specifically, the rake control technical scheme provided by the application is composed of at least 60 small stepping motors (the front plate weaving area and the rear plate weaving area are respectively provided with at least 30 stepping motors), each small stepping motor carries out up-down motion change through the rake installed at the output end of each small stepping motor, the fabric is independently pulled up and down in the minimum weaving area where the small stepping motor is located, the tension change can be controlled in the minimum size range through a single rake, the front plate rake and the rear plate rake in the application are independently operated, the independent adjustable effect is further achieved on the tension of the front and rear clothes pieces, and then the plurality of rake controls of the application are equivalent to that a plurality of small hands respectively pull the fabric, so that the traditional control mode of adopting high roller tension is broken.
Compared with the traditional high-roller tension control, the full-forming braiding rake control method provided by the application enables tension control on the fabric to be more flexible and finer, and control on fabric point effect is directly achieved from control on fabric surface effect achieved by original high-roller tension; the tension control precision is obviously improved, so that the knitting patterns of the flat knitting machine are further rich, the knitting patterns with high tension requirements can be processed in a large scale, namely, the full-forming knitting effect is realized, and the full-forming knitting effect of one piece of ready-made garment is realized from the change of the knitting tension of one yarn;
on the basis of the above, the full-formed braiding rake control method provided by the application can enrich new braiding patterns, so that the competitiveness and the added value of fabric products are improved; and the full-forming braiding effect is realized, the manual sewing work is also obviously avoided or at least reduced, the labor is saved, and meanwhile, the braiding efficiency is greatly improved.
The application also specifically provides a full-formed braiding rake control connection structure, which specifically comprises a control main board, a machine head MCU main control chip and a rake driving board provided with a rake control chip, wherein the control main board is respectively in communication connection with the machine head MCU main control chip and the rake control chip; the control main board is in communication connection with the servo driver and is in driving connection with the handpiece motor through the servo driver; the rake control chip is in driving connection with a corresponding stepping motor; the whole control structure is simple, flexible, precise, stable and reliable in control, high in integration level of the control structure, low in manufacturing cost and suitable for large-scale popularization and application.
Drawings
FIG. 1 is a schematic view of a fully formed woven rake control connection in accordance with an embodiment of the present application;
fig. 2 is a schematic structural diagram of a head MCU master control chip according to an embodiment of the present application;
fig. 3 is a schematic structural diagram of a single rake control chip in the embodiment of the present application.
Detailed Description
The embodiment of the utility model discloses a full-formed braiding rake control connection structure, which comprises a control main board, a machine head MCU main control chip and a rake driving board provided with a rake control chip; the control main board is respectively in communication connection with the head MCU main control chip and the rake control chip; the control main board is in communication connection with the servo driver and is in driving connection with the handpiece motor through the servo driver; the rake control chip is in driving connection with the corresponding stepping motor.
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
Referring to fig. 1, a fully-formed braiding rake control connection structure includes a control main board, a head MCU main control chip 1 and a rake driving board 3 provided with a rake control chip 2; the control main board 4 is respectively in communication connection with the head MCU main control chip 1 and the rake control chip 2; the control main board 4 is in communication connection with the servo driver 5, and is in driving connection with the handpiece motor 6 (specifically, a servo motor) through the servo driver 5; the rake control chip 2 is in driving connection with a corresponding stepping motor.
Preferably, in the present embodiment, a position sensor 7 is mounted on a head of the computerized flat knitting machine, and the position sensor 7 is communicatively connected to the control main board 4 for sending a head position signal to the control main board 4.
Preferably, in the present embodiment, the present utility model includes at least 2 rake driving boards 3, each rake driving board 3 is integrated with a plurality of rake control chips 2, specifically, at least 6 rake control chips 2 are integrated, and each rake driving board 3 is in communication connection through CAN communication; more preferably, in the present embodiment, at least 6-12 rake driving boards 3 are included, and 6-12 rake control chips 2 are integrated on each rake driving board 3; in particular, in this embodiment, the rake driving device comprises 10 rake driving boards 3 (particularly, in a rectangular shape, fig. 1 is marked as a rake driving board 1), each rake driving board 3 is integrated with 10 rake control chips 2, and each rake driving board 3 is in communication connection through CAN communication;
preferably, in the present embodiment, each rake control chip 2 is connected with 1 stepper motor control, that is to say, comprises 100 stepper motors in total; wherein, the output end of each stepping motor is provided with a rake (also called as a hook) and realizes the independent pulling effect on the fabric through the up-and-down lifting action of the rake; further preferably, in the present embodiment, the stepper motors are respectively disposed in a front plate knitting area and a rear plate knitting area of the flat knitting machine (known knitting area structure, which is not specifically described in this example), wherein the number of the stepper motors disposed in the front plate knitting area and the rear plate knitting area is the same as 50, and the 50 stepper motors in the front plate knitting area and the rear plate knitting area are respectively distributed in a closely side-by-side shape; wherein preferably, in order to facilitate the tension control of the fabric dot effect, in the present embodiment, the axial dimension of each stepper motor (i.e. the running direction of the machine head) is not more than 5cm, preferably 1.5-3.5cm, and particularly preferably, in the present embodiment, the axial dimension of each stepper motor is 2.5cm.
Preferably, in order to achieve the desired target control effect, in the present embodiment, the rake control chip 2 employs a DRV8424RGER drive control chip (see fig. 3); the machine head MCU master control chip 1 adopts an STM32F103VC model chip (see the figure 2); the control main board 4 adopts an STM32F429IGT6 type chip; preferably, in the present embodiment, the control main board 4 is in communication connection with the rake control chip 2 through the CAN relay 8; the control main board 4 is respectively in communication connection with the head MCU main control chip 1 and the rake control chip 2 in a CAN communication mode.
The embodiment also provides a full-forming braiding rake control method, which specifically adopts the full-forming braiding rake control connecting structure, namely: the front plate knitting area and the back plate knitting area of the computerized flat knitting machine are respectively provided with 50 stepping motors, each stepping motor is in control connection with a rake control chip 2 corresponding to the stepping motors, the rake control chip 2 is in communication connection with a head MCU main control chip 1, wherein the head MCU main control chip 1 sends head driving signals to a head motor 6 for driving the head to work through a control main board 4 based on head position signals, preferably, in the embodiment, the full-forming knitting requirements of target fabrics are transmitted to the head MCU main control chip 2 through a communication mode by an upper computer (particularly a man-machine interaction interface), the head position signals are acquired through a position sensor 7 arranged on the head, and the head position signals are simultaneously transmitted to a servo driver 5 of the head MCU main control chip 1 and the head motor 6 (particularly preferably a servo motor) through the control main board 4.
In this embodiment, the head MCU main control chip 1 inputs the full-forming knitting requirement of the target fabric in advance, combines the full-forming knitting requirement and the head driving signal to convert the full-forming knitting requirement and the head driving signal into the stepping motor driving signal input to the rake control chip 2, and transmits the stepping motor driving signal to each rake control chip 2 on each rake driving board 3 through the control main board 4, the rake control chip 2 converts the stepping motor driving signal into a stepping motor motion curve input to each stepping motor, each stepping motor uses the stepping motor motion curve as a motion command, and drives the corresponding rake to independently perform up-down motion to drag the fabric, so as to independently control the pulling force of the fabric in the corresponding area, thereby realizing the full-forming knitting effect on the target fabric.
In this embodiment, the distance that each rake can control the change of the fabric tension is 2.5cm (i.e. the axial dimension corresponding to a single stepper motor), which means that a single rake can control the change of the tension within a 2.5cm interval, which is equivalent to realizing the control of the fabric dot effect.
In the embodiment, the control main board 4 adopts an STM32F429IGT6 type chip, the machine head MCU main control chip 1 adopts an STM32F103VC type chip, and mainly processes the communication between the machine head MCU main control chip and the control main board 4, and timely sends a driving instruction to the rake control chip 2 through the control main board 4, so that the precise driving effect of each stepping motor is ensured; and the device is also used for processing and adjusting the driving current, pulse and direction of the servo driver 5 so as to control the moment, rotation speed and direction of the handpiece motor 6 and ensure the accurate control effect on the handpiece.
In this embodiment, the rake control chip 2 adopts a DRV8424RGER driving control chip (provided by TI corporation, belonging to mature motor driving chip), and in actual operation, the working peak current of the single stepper motor is small, preferably not greater than 2A, and particularly preferably, in this embodiment, the working peak current of the single stepper motor is 1A, so that the driving effect is precise, stable and reliable.
Referring specifically to fig. 2 and 3, the STM32F429IGT6 chip outputs an enable signal nBJ _enb1, a motor steering signal DIR1, a motor rotation speed signal STEP1 and a reference voltage value signal VREF1 to the input pin of the DRV8424RGER driving control chip through output pins, respectively; the signals corresponding to the input pin and the output pin of each STM32F429IGT6 type chip and the signals corresponding to the input pin and the output pin of the DRV8424RGER driving control chip can be directly seen in fig. 2 and 3, which are all conventional technical choices that can be made by those skilled in the art based on the technical content described in the present application, so this embodiment is not described in a one-to-one manner.
Preferably, in order to achieve independent control of the pulling force to the front and rear plates, in the present embodiment, the front plate rakes provided in the front plate knitting region and the rear plate rakes provided in the rear plate knitting region are alternately distributed at intervals.
Preferably, in order to realize the identification of each rake driving board 3, in this embodiment, each rake driving board 3 is provided with different physical addresses through a dial switch (known structure) to show the distinction, so as to realize the identification management of a large number of rake driving boards 3 and their corresponding rake control chips 2.
The full-formed braiding rake control method provided by the embodiment can enrich new braiding patterns, thereby increasing the competitiveness and additional value of fabric products; the full-forming knitting effect is realized, the manual sewing work is also obviously avoided or at least reduced, the labor is saved, and the knitting efficiency is greatly improved; meanwhile, the full-formed braiding rake control connection structure provided by the embodiment is simple in structure, flexible, precise, stable and reliable in control, high in integration level of the control structure, low in manufacturing cost and suitable for large-scale popularization and application.
It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (10)
1. The full-formed braiding rake control connection structure is characterized by comprising a control main board, a machine head MCU main control chip and a rake driving board provided with a rake control chip; wherein,,
the control main board is respectively in communication connection with the head MCU main control chip and the rake control chip;
the control main board is in communication connection with a servo driver and is in driving connection with a machine head motor through the servo driver;
the rake control chip is in driving connection with the stepping motor corresponding to the rake control chip.
2. The full-formed knitting rake control connection structure as claimed in claim 1, characterized in that a position sensor is mounted on a head of the computerized flat knitting machine, and the position sensor is connected with the control main board in a communication manner, and is used for sending a head position signal to the control main board.
3. The fully-formed woven rake control connection structure of claim 1, comprising at least 2 rake drive boards, each rake drive board having at least 6 rake control chips integrated thereon, the rake drive boards being communicatively coupled by CAN communications.
4. A fully-formed woven rake control connection structure as claimed in claim 3, comprising at least 6-12 rake drive boards, each rake drive board having 6-12 rake control chips integrated thereon, the rake drive boards being communicatively connected by CAN communication.
5. The fully-formed woven rake control connection structure according to claim 3 or 4, wherein each rake control chip is in control connection with 1 stepping motor, wherein the output end of each stepping motor is provided with a rake, and independent pulling effect on fabrics is achieved through up-down lifting action of the rake.
6. The fully-formed braiding rake control connection structure of claim 5, wherein the stepper motors are respectively arranged in a front plate braiding area and a rear plate braiding area, wherein the number of the stepper motors arranged in the front plate braiding area and the rear plate braiding area is the same, and the stepper motors in the front plate braiding area and the rear plate braiding area are distributed in a close side-by-side shape.
7. The fully formed woven rake control attachment structure of claim 1, wherein each stepper motor has an axial dimension in the range of 1.5-3.5cm.
8. The fully formed woven rake control connection structure of claim 1, wherein the control motherboard is communicatively connected to the rake control chip through a CAN relay.
9. The fully formed woven rake control connection structure of claim 1, wherein the rake control chip employs a DRV8424RGER drive control chip; the machine head MCU main control chip adopts an STM32F103VC model chip; and the control main board adopts an STM32F429IGT6 type chip.
10. The fully-formed braiding rake control connection structure of claim 1, wherein the control main board is in communication connection with the head MCU main control chip and the rake control chip through CAN communication, respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202223499759.8U CN218951638U (en) | 2022-12-28 | 2022-12-28 | Full-forming braiding rake control connection structure |
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| CN202223499759.8U CN218951638U (en) | 2022-12-28 | 2022-12-28 | Full-forming braiding rake control connection structure |
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| CN218951638U true CN218951638U (en) | 2023-05-02 |
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| CN202223499759.8U Active CN218951638U (en) | 2022-12-28 | 2022-12-28 | Full-forming braiding rake control connection structure |
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