CN106884266B

CN106884266B - Automatic cloth conveying device and automatic cloth conveying line

Info

Publication number: CN106884266B
Application number: CN201710286690.5A
Authority: CN
Inventors: 蔡超
Original assignee: Jack Sewing Machine Co Ltd
Current assignee: Jack Technology Co Ltd
Priority date: 2017-04-27
Filing date: 2017-04-27
Publication date: 2020-08-11
Anticipated expiration: 2037-04-27
Also published as: CN106884266A

Abstract

The invention relates to the technical field of clothing production sewing, in particular to an automatic cloth conveying device and an automatic cloth conveying line, which comprise a control system, a feeding table plate for placing cloth, a guide rail arranged in parallel with the feeding table plate, a feeding unit arranged on the guide rail in a sliding manner and driving the cloth to move on the feeding table plate, a first driving mechanism driving the feeding unit to slide on the guide rail, a plurality of position identification units arranged on one side of the guide rail at intervals along the sliding direction of the feeding unit and a position sensing unit arranged on the feeding unit, wherein the feeding unit drives the position sensing unit to pass through and sense the position identification unit; the position sensing unit is connected with the input end of the control system, and the output end of the control system is connected with the first driving mechanism. The cross-station transmission of the cloth can be realized, the sliding speed of the feeding unit is subjected to real-time detection and compensation adjustment, so that the cloth is efficiently and accurately transmitted among different sewing stations, the sewing efficiency is improved, and the labor cost is reduced.

Description

Automatic cloth conveying device and automatic cloth conveying line

Technical Field

The invention relates to the technical field of garment production and sewing, in particular to an automatic cloth conveying device and an automatic cloth conveying line.

Background

At present, most garment factories operate one sewing machine by each worker, and the cloth logistics systems of the workers are carried by people or realized by hanging devices. After a certain amount of cloth is sewn at a certain sewing station, workers need to shrink the cloth, then the cloth is carried by the workers or conveyed to the next sewing station through a hanging device, then the workers unfold the cloth for corresponding sewing, and the steps are repeated after the sewing is finished. Therefore, the cloth conveying efficiency and the sewing efficiency are very low, and the labor intensity of workers is high.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic cloth conveying device and an automatic cloth conveying line which can efficiently and accurately convey cloth between different sewing stations so as to overcome the defects in the prior art.

In order to solve the technical problems, the invention adopts the following technical scheme: an automatic cloth conveying device comprises a control system, a feeding table board for placing cloth, a guide rail arranged in parallel with the feeding table board, a feeding unit which is slidably arranged on the guide rail and drives the cloth to move on the feeding table board, a first driving mechanism for driving the feeding unit to slide on the guide rail, a plurality of position identification units arranged on one side of the guide rail at intervals along the sliding direction of the feeding unit, and position sensing units arranged on the feeding unit, wherein the feeding unit drives the position sensing units to pass through and sense the position identification units; the position sensing unit is connected with the input end of the control system, and the output end of the control system is connected with the first driving mechanism.

Preferably, the position identification unit includes a chip storing position information, and the position sensing unit includes a chip reader capable of recognizing the chip and reading the position information.

Preferably, the position identification unit further includes a position block, and the position sensing unit further includes a position sensor capable of sensing the position block.

Preferably, all the location identity units are distributed at equal intervals.

Preferably, the guide rail is arranged on the guide rail bracket, and all the position identification units are arranged on the guide rail bracket.

Preferably, the feeding unit comprises a sliding seat slidably disposed on the guide rail, a pressure plate disposed on the sliding seat in a liftable manner, and a second driving mechanism for driving the pressure plate to ascend and descend on the sliding seat, and the pressure plate is located above the feeding platen and used for driving the cloth to move on the feeding platen.

Preferably, the first driving mechanism is arranged on the sliding seat and comprises a motor, a main roller and a main synchronous belt, the main synchronous belt is connected with an output shaft of the motor and a rotating shaft of the main roller, and the outer circumferential surface of the main roller is in contact with the upper surface of the guide rail.

Preferably, the bottom of the sliding seat is provided with a first auxiliary roller, and the outer circumferential surface of the first auxiliary roller is in contact with the lower surface of the guide rail.

Preferably, the second driving mechanism is arranged on the sliding seat and comprises a telescopic rod and a connecting rod structure, one end of the connecting rod structure is connected with the telescopic rod, the other end of the connecting rod structure is connected with the pressure plate, and the telescopic rod drives the connecting rod structure to move and drives the pressure plate to lift.

The utility model provides an automatic cloth conveying line, includes a plurality of sewing stations that arrange side by side, and every sewing station department all is equipped with the work platen and installs the sewing machine on the work platen, still includes as above cloth automatic transmission device, and cloth automatic transmission device locates all sewing stations with one side, and the pay-off platen sets up with all sewing stations are relative, and the guide rail is located the one side that the sewing station was kept away from to the pay-off platen.

Compared with the prior art, the invention has the remarkable progress that:

the cloth is driven to move on the feeding table plate through the sliding of the feeding unit on the guide rail, the cloth which is sewn on the last sewing station can be transmitted to the next adjacent sewing station to be sewn according to the arrangement sequence of the sewing stations, the cloth which is sewn on one sewing station can be directly transmitted to any specified sewing station to be sewn, the cross-station transmission of the cloth is achieved, and the work of other sewing stations is not affected. In addition, in the process of conveying the cloth by the feeding unit, the position information acquired by the position sensing unit sensing the position identification unit is analyzed and calculated by the control system, so that the error between the actual sliding speed of the feeding unit and the preset sliding speed can be obtained, the first driving mechanism is controlled to adjust the sliding speed of the feeding unit according to the error, the error is compensated and adjusted in time, the sliding speed of the feeding unit is kept at the preset sliding speed, and the feeding unit can be ensured to accurately convey the cloth to the specified position. Therefore, the automatic cloth conveying device can realize the efficient and accurate conveying of the cloth among different sewing stations, thereby improving the sewing efficiency and reducing the labor cost.

Drawings

Fig. 1 is a schematic view of the overall structure of an automatic cloth conveying apparatus according to an embodiment of the present invention.

Fig. 2 is an enlarged schematic view of a portion a in fig. 1.

Fig. 3 is a schematic structural view of a feeding unit and a guide rail in the automatic cloth conveying device according to the embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a feeding unit in the automatic cloth conveying device according to the embodiment of the present invention.

Fig. 5 is a schematic structural diagram of a second driving mechanism of a feeding unit in an automatic cloth conveying device according to an embodiment of the present invention.

In the figure:

1. sewing station 101, table 102, sewing machine

2. Feeding bedplate 3, guide rail 4 and feeding unit

5. Cloth 6, slide 7, pressure flitch

8. Motor 9, main roller 10 and main synchronous belt

11. Auxiliary roller 12, auxiliary synchronous belt 13 and first auxiliary roller

14. Second auxiliary roller 15, compression spring 16 and mounting plate

17. Fastening bolt 18, telescopic rod 19 and connecting rod structure

20. First link 21, second link 22, third link

23. A first connecting rod 24, a second connecting rod 25, a third connecting rod

26. Cushion pad 27, rail bracket 28, chip

29. Chip reader 30, position block 31, position sensor

32. First support member 33, second support member

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and are not intended to limit the present invention.

In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The terms "mounted," "connected," and "coupled" are to be construed broadly and may, for example, be fixedly coupled, detachably coupled, or integrally coupled; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. "plurality" means two or more.

As shown in fig. 1 to 5, an embodiment of an automatic cloth conveying apparatus according to the present invention is disclosed. As shown in fig. 1, the automatic cloth conveying device of the present embodiment is installed at the same side of a plurality of sewing stations 1 arranged side by side, each sewing station 1 is provided with a work table 101 and a sewing machine 102 installed on the work table 101, and the sewing machine 102 is an industrial sewing machine, and may be a flat sewing machine, a overedging machine, or the like. The cloth sewed on the working table plate 101 at each sewing station 1 can be transferred to the next or any other designated sewing station 1 by the automatic cloth transfer device of the embodiment.

Specifically, the automatic cloth conveying device of the present embodiment includes a control system, a feeding platen 2, a guide rail 3, a feeding unit 4, a first driving mechanism, a position identification unit, and a position sensing unit.

The feeding table plate 2 is arranged opposite to the plurality of sewing stations 1 which are arranged side by side, and the feeding table plate 2 is used for placing cloth 5 which is sewn at the sewing stations 1. The guide rail 3 is arranged in parallel with the feeding table plate 2, and the guide rail 3 is arranged on one side of the feeding table plate 2 far away from the sewing station 1. The feeding unit 4 is slidably disposed on the guide rail 3, the first driving mechanism drives the feeding unit 4 to slide on the guide rail 3, and the feeding unit 4 can drive the cloth 5 to move on the feeding platen 2 by sliding on the guide rail 3. After the sewing of the cloth at a certain sewing station 1 is completed, an operator can manually move the cloth 5 which is sewn on the working table plate 101 to the position, corresponding to the sewing station 1, on the feeding table plate 2, then the first driving mechanism drives the feeding unit 4 to drive the cloth 5 to move to the next or any other designated sewing station 1 on the feeding table plate 2, then the operator at the corresponding sewing station 1 manually moves the cloth 5 on the feeding table plate 2 to the working table plate 101 for sewing, and after the sewing is completed, the process is repeated. From this, the cloth automatic conveying device of this embodiment not only can realize transmitting the cloth that the completion was made to last sewing station 1 to next adjacent sewing station 1 according to the order of arranging of a plurality of sewing stations 1 in proper order and make up, can also realize directly transmitting the cloth that the completion was made to a certain sewing station 1 to arbitrary appointed sewing station 1 and make up, realize promptly that the station of striding of cloth transmits, does not influence the work of other sewing stations 1.

The position identification units are arranged in a plurality, and all the position identification units are arranged on one side of the guide rail 3 at intervals along the sliding direction of the feeding unit 4. The position sensing unit is arranged on the feeding unit 4 and moves along with the sliding of the feeding unit 4 on the guide rail 3, passes through the position identification unit in the moving process, senses the position identification unit and collects the position information of the position identification unit. The position sensing unit is connected with the input end of the control system, and the output end of the control system is connected with the first driving mechanism. The position sensing unit sends the collected position information to the control system, the control system receives the position information sent by the position sensing unit and analyzes and calculates the position information, the actual sliding speed of the feeding unit 4 between two adjacent position identification units is calculated according to the arrival time interval of the two adjacent position information and the distance between the two adjacent position identification units corresponding to the arrival time interval, the actual sliding speed is compared with the preset sliding speed to obtain a speed error, a speed adjusting instruction is sent to the first driving mechanism according to the speed error, and the first driving mechanism receives and responds to the instruction to adjust the sliding speed of the feeding unit 4. Therefore, the real-time detection and adjustment of the sliding speed of the feeding unit 4 are realized, when the sliding speed of the feeding unit 4 has errors due to the precision error of the first driving mechanism or poor matching between the feeding unit 4 and the guide rail 3 and the like, the errors can be compensated and adjusted in time, so that the sliding speed of the feeding unit 4 is kept at the preset sliding speed, and the feeding unit 4 can accurately transmit the cloth 5 to the specified position. The "preset sliding speed" refers to a sliding speed at which the first driving mechanism drives the feeding unit 4 to slide on the guide rail 3, which is preset according to actual conditions in practical application.

Therefore, the cloth automatic conveying device of this embodiment can realize that cloth 5 is high-efficient, the accurate transmission between different sewing station 1 to improve and make up efficiency, reduce the human cost.

The feeding unit 4 in the embodiment can be provided with one feeding unit 4, the cloth 5 can be efficiently transmitted among different sewing stations 1 by one feeding unit 4, and the sewing machine has the advantages of simple structure and low equipment cost. Of course, in order to meet the requirements of the number of the sewing stations 1 and the sewing efficiency, the feeding units 4 can be arranged in a plurality of numbers, the feeding units 4 are matched with each other, and meanwhile, different cloth materials 5 between different sewing stations 1 are transmitted, so that the transmission efficiency can be further improved, and the higher sewing efficiency is ensured. When the feeding units 4 are provided in plurality, each feeding unit 4 is provided with a position sensing unit.

The number of the position identification units and the distance between two adjacent position identification units in this embodiment are not limited, and may be set according to the actual length of the guide rail 3 and the preset sliding speed of the feeding unit 4 on the guide rail 3. Preferably, all the position-identifying units are equally spaced so that the control system can more accurately adjust the sliding speed of the feeding unit 4.

Further, in order to facilitate the setting of the position identification unit and enable the position identification unit not to hinder the sliding of the feeding unit 4 on the guide rail 3, the guide rail 3 of the embodiment is arranged on the guide rail bracket 27, all the position identification units are arranged on the guide rail bracket 27, and all the position identification units are arranged on one side of the guide rail 3 far away from the feeding bedplate 2.

Further, as shown in fig. 2, the position identification unit in this embodiment includes a chip 28, the chip 28 is disposed on the rail bracket 27, and the chip 28 of each position identification unit stores the position information of the corresponding position identification unit. The position sensing unit includes a chip reader 29, and the chip reader 29 is capable of recognizing the chip 28 and reading the position information stored in the chip 28 and transmitting the read position information to the control system. Preferably, the chip 28 in this embodiment is an RFID (Radio Frequency Identification) chip, and the chip reader 29 is an RFID reader. The RFID reader is used for identifying the RFID chip and reading the position information of the RFID chip, and the method has the advantages of good real-time performance and high accuracy.

Further, when the position sensing unit approaches the position identification unit, the chip reader 29 may also sense the chip 28 and read the position information stored in the chip 28, and the feeding unit 4 does not actually reach the position corresponding to the position information, thereby generating an error. To avoid this error, the position-identifying unit in this embodiment further includes a position block 30, and the position block 30 is disposed on the rail bracket 27. The position sensing unit further includes a position sensor 31, when the position sensor 31 passes through and senses the position block 30, the position sensor 31 sends a sensing signal to the control system, and the control system performs the next operation only when receiving the signal sent by the position sensor 31 and the position information sent by the chip reader 29 at the same time. Therefore, the actual position of the feeding unit 4 can reach the position corresponding to the position information stored in the chip 28 through the identification and sensing of the position sensor 31 to the position block 30, and the accuracy of the control system for adjusting the sliding speed of the feeding unit 4 is further ensured.

Further, in the present embodiment, each position identification unit is respectively disposed on one first support member 32, and the first support member 32 is disposed on a side of the rail bracket 27 away from the feeding platen 2. The position sensing unit is arranged on a second supporting member 33, the second supporting member 33 is arranged on one side of the sliding seat 6 of the feeding unit 4 far away from the feeding platen 2, the second supporting member 33 is arranged opposite to the first supporting member 32, and the first supporting member 32 is arranged between the second supporting member 33 and the guide rail bracket 27. In this embodiment, the chip 28 and the position block 30 are both disposed on a side of the first support 32 facing the second support 33, the chip 28 is located above the position block 30, the chip reader 29 and the position sensor 31 are both disposed on a side of the second support 33 facing the first support 32, the chip reader 29 is located above the position sensor 31, the chip reader 29 and the chip 28 are located on the same horizontal plane, and the position sensor 31 and the position block are located on the same horizontal plane. Thus, the recognition of the chip 28 by the chip reader 29 and the sensing of the position block 30 by the position sensor 31 do not interfere with each other, and the accuracy and reliability of the detection can be ensured.

Further, as shown in fig. 1 and 3, the feeding unit 4 in the present embodiment includes a slide 6, a pressure plate 7, and a second driving mechanism. Wherein, the slide 6 can be arranged on the guide rail 3 in a sliding way, and the first driving mechanism is connected with the slide 6 and drives the slide 6 to slide on the guide rail 3. The pressure plate 7 is arranged on the sliding base 6 in a lifting mode, the pressure plate 7 is located above the feeding platen 2, the pressure plate 7 is used for being in contact with the cloth 5 and driving the cloth 5 to move on the feeding platen 2, and the second driving mechanism is used for driving the pressure plate 7 to lift on the sliding base 6. When no cloth is on the feeding platen 2 or the cloth 5 on the feeding platen 2 does not need to be conveyed, the second driving mechanism drives the material pressing plate 7 to ascend and has a certain interval with the feeding platen 2. When the cloth 5 on the feeding platen 2 needs to be conveyed, the first driving mechanism drives the sliding seat 6 to slide on the guide rail 3 to a position corresponding to the cloth 5, so that the material pressing plate 7 is positioned above the cloth 5; the second driving mechanism drives the material pressing plate 7 to descend so as to press the cloth 5 and keep a certain pressure on the cloth 5; then, a first driving mechanism drives the sliding seat 6 to slide on the guide rail 3, and at the moment, the material pressing plate 7 drives the cloth 5 to move on the feeding table plate 2 together with the sliding seat until the cloth 5 is conveyed to the appointed sewing station 1; the second driving mechanism drives the material pressing plate 7 to ascend to be separated from the cloth 5, so that an operator can move the cloth 5 to the working table plate 101 of the corresponding sewing station 1. This enables an automatic transfer of the cloth 5 between the different sewing stations 1. Of course, the pressure plate 7 may also drive the cloth 5 to move by vacuum-absorbing the cloth 5 or sticking the cloth 5.

Further, as shown in fig. 3 and 4, in this embodiment, a first driving mechanism is disposed on the slide carriage 6, the first driving mechanism includes a motor 8, a main roller 9 and a main timing belt 10, the motor 8 and the main roller 9 are both disposed on the slide carriage 6, the main timing belt 10 connects an output shaft of the motor 8 and a rotating shaft of the main roller 9, and an outer circumferential surface of the main roller 9 contacts with an upper surface of the guide rail 3. The main roller 9 is driven by the motor 8 through the main synchronous belt 10 to rotate synchronously, and the slide carriage 6 is driven to slide on the guide rail 3 through the rolling of the main roller 9 on the guide rail 3. It is thereby achieved that the first drive mechanism drives the slide 6 to slide on the guide rail 3. The control system is connected with the motor 8, and adjusts the rotating speed of the motor 8 according to the position information acquired by the position sensing unit and the analysis and calculation result so as to adjust the sliding speed of the sliding block 6 of the feeding unit 4 on the guide rail 3.

In order to increase the stability of the sliding of the carriage 6 on the guide rail 3, it is preferable that the first drive mechanism of the present embodiment further includes a sub roller 11 and a sub timing belt 12. The auxiliary roller 11 is arranged on the sliding seat 6, the auxiliary roller 11 is arranged in parallel with the main roller 9, the auxiliary synchronous belt 12 is connected with the rotating shaft of the main roller 9 and the rotating shaft of the auxiliary roller 11, namely, one end of the rotating shaft of the main roller 9 is connected with the output shaft of the motor 8 through the main synchronous belt 10, and the other end of the rotating shaft of the main roller 9 is connected with the rotating shaft of the auxiliary roller 11 through the auxiliary synchronous belt 12. The outer circumferential surface of the sub roller 11 is in contact with the upper surface of the guide rail 3. When the motor 8 drives the main roller 9 to synchronously rotate along with the main roller through the main synchronous belt 10, the main roller 9 drives the auxiliary roller 11 to synchronously rotate along with the main roller through the auxiliary synchronous belt 12, at the moment, the main roller 9 and the auxiliary roller 11 simultaneously roll on the guide rail 3 to drive the sliding seat 6 to slide on the guide rail 3, and the stability of the sliding seat 6 sliding on the guide rail 3 can be improved.

In order to further increase the stability of the sliding base 6 on the guide rail 3 and to achieve the guidance of the sliding base 6, it is preferable that the present embodiment is provided with a first auxiliary roller 13 at the bottom of the sliding base 6, an outer circumferential surface of the first auxiliary roller 13 is in contact with the lower surface of the guide rail 3, and the first auxiliary roller 13 can roll on the lower surface of the guide rail 3. Further, a second auxiliary roller 14 is provided between both sides of the slide 6 and the guide rail 3, an outer circumferential surface of the second auxiliary roller 14 is in contact with a side surface of the guide rail 3, and the second auxiliary roller 14 can roll on the side surface of the guide rail 3. The number of the first auxiliary roller 13 and the second auxiliary roller 14 is not limited, and one or more auxiliary rollers may be provided. Therefore, the sliding base 6 is contacted with the upper surface of the guide rail 3 through the main roller 9 and the auxiliary roller 11, contacted with the lower surface of the guide rail 3 through the first auxiliary roller 13, contacted with the two side surfaces of the guide rail 3 through the second auxiliary roller 14, namely, the sliding base 6 is contacted with the four peripheral surfaces of the guide rail 3, thereby having good guiding function for the sliding of the sliding base 6 on the guide rail 3 and ensuring the stable sliding of the sliding base 6 on the guide rail 3.

In order to prevent abrasion, the main roller 9, the auxiliary roller 11, the first auxiliary roller 13 and the second auxiliary roller 14 in this embodiment are all made of an abrasion-resistant material with a high friction coefficient, and have good friction performance and abrasion resistance.

However, since the abrasion of the rollers, especially the main roller 9 and the auxiliary roller 11, may still be caused after a long time of use, so that a gap is generated between the first auxiliary roller 13 and the guide rail 3 to affect the stability of the sliding base 6, in order to eliminate the effect, preferably, the first auxiliary roller 13 of the embodiment is liftably disposed on the sliding base 6, and when the gap is generated between the first auxiliary roller 13 and the guide rail 3, the contact between the first auxiliary roller 13 and the lower surface of the guide rail 3 can be ensured by adjusting the height of the upper and lower positions of the first auxiliary roller 13, so that the phenomenon that the abrasion of the main roller 9 and the auxiliary roller 11 causes the gap between the first auxiliary roller 13 and the guide rail 3 to cause the unstable matching between the sliding base 6 and the guide rail 3 is.

The specific manner in which the first auxiliary roller 13 is arranged on the slide carriage 6 in a liftable manner is not limited. In this embodiment, as shown in fig. 4, the first auxiliary roller 13 is installed on the sliding base 6 through the installation plate 16 in a vertically slidable manner, a fastening bolt 17 arranged in the vertical direction is connected between the installation plate 16 and the sliding base 6, a compression spring 15 is sleeved on the fastening bolt 17, two ends of the compression spring 15 respectively abut against the sliding base 6 and the installation plate 16, the compression amount of the compression spring 15 can be adjusted by screwing the fastening bolt 17, and the installation plate 16 is driven to lift on the sliding base 6, so that the height of the vertical position of the first auxiliary roller 13 is adjusted. The mounting plate 16 is mounted on the slide 6 in a vertically slidable manner by means of a latch and a slide groove.

The first actuating mechanism of this embodiment adopts the mode of motor 8 drive main roller 9, and when practical application, if need increase the quantity of sewing station 1, only need to splice guide rail 3 in order to increase the length of guide rail 3 can, and need not to make the adjustment to first actuating mechanism, can adapt to the guide rail 3 of different length, realize the transmission of cloth, satisfy the requirement, consequently have better adaptability and flexibility, it is with low costs. Of course, the first drive mechanism may also take other forms that enable the drive carriage 6 to slide on the guide rail 3, such as a lead screw drive, or a rack and pinion drive.

Further, as shown in fig. 3 and 5, in this embodiment, a second driving mechanism is disposed on the sliding base 6, the second driving mechanism includes an expansion link 18 and a link structure 19, one end of the link structure 19 is connected to the expansion link 18, the other end of the link structure 19 is connected to the pressure plate 7, and the expansion of the expansion link 18 drives the link structure 19 to move and drive the pressure plate 7 to lift and lower.

Specifically, the link structure 19 in the present embodiment includes two sets of link assemblies disposed on the slide 6 in a spaced and parallel manner. Each group of connecting rod assemblies comprises a first connecting rod 20, a second connecting rod 21 and a third connecting rod 22, the first end of the first connecting rod 20 is hinged to the sliding seat 6, the second end of the first connecting rod 20 is hinged to the first end of the second connecting rod 21, the second end of the second connecting rod 21 is connected with the pressure plate 7, the first end of the third connecting rod 22 is hinged to the sliding seat 6, and the second end of the third connecting rod 22 is hinged to the second connecting rod 21 in the middle of the second connecting rod 21. The first ends of the two first links 20 of the two groups of link assemblies are fixedly connected through a first connecting rod 23, and the second ends of the two third links 22 are fixedly connected through a second connecting rod 24. A third connecting rod 25 is arranged between the two first connecting rods 20, and two ends of the third connecting rod 25 are respectively hinged with the two first connecting rods 20 in the middle of the two first connecting rods 20. The telescopic end of the telescopic rod 18 is connected with the third connecting rod 25 in the middle of the third connecting rod 25, and the telescopic rod 18 inclines relative to the sliding seat 6, so that when the telescopic rod 18 extends out, the downward oblique pressure is applied to the third connecting rod 25, and the two groups of connecting rod assemblies are pushed to rotate downwards, so that the pressure plate 7 is driven to descend; when the telescopic rod 18 retracts, an upward oblique pulling force is applied to the third connecting rod 25, and the two groups of connecting rod assemblies are pulled to rotate upwards, so that the pressure plate 7 is driven to ascend. Therefore, the second driving mechanism drives the pressure plate 7 to ascend and descend on the sliding seat 6.

The form of the telescopic rod 18 in this embodiment is not limited, and may be a cylinder, a hydraulic cylinder, an electric push rod, a linear stepping motor, or an electromagnet.

Further, in order to adapt to the cloth 5 with different sizes, the pressure plate 7 in the embodiment is detachably connected with the two second connecting rods 21 in the connecting rod structure 19, so that the pressure plate 7 can be conveniently replaced, and the transmission of the cloth with different sizes is adapted.

Further, in order to prevent the cloth 5 from being damaged, in the present embodiment, a cushion pad 26 is provided on a surface of the nip plate 7 facing the feed platen 2. The cushion pad 26 is made of an elastic material with a large friction coefficient, has a good friction performance, can play a good role in buffering by contacting the cushion pad 26 with the cloth 5, prevents the cloth 5 from being damaged by the pressure plate 7, and effectively drives the cloth 5 to move on the feeding bedplate 2.

In addition, the control system in this embodiment is further connected to the telescopic rod 18 in the second driving mechanism, and the control system can control the motor 8 in the first driving mechanism and the telescopic rod 18 in the second driving mechanism to start or stop running, so as to realize automatic control of the conveying process of the cloth 5.

Further, in order to better realize automatic control, in the embodiment, a detecting member is disposed at a position on the feeding platen 2 corresponding to each sewing station 1, and is used for detecting whether a cloth 5 is present at the position, so as to determine whether to start to convey the cloth 5 or whether the cloth 5 is conveyed in place. The detection piece on the feeding bedplate 2 is connected with the control system and sends the detected information to the control system, and the control system automatically controls the motor 8 and the telescopic rod 18 to start or stop running according to the information detected by the detection piece, thereby realizing full-automatic control and intelligent transmission of cloth.

Further, for further reduce cost, this embodiment is equipped with the electricity taking groove on guide rail 3, and the required power consumption of feeding unit 4 all obtains from the electricity taking groove on guide rail 3, can save the space that sets up of cable from this, reduce cost.

Based on above-mentioned cloth automatic conveying device, this embodiment still provides a cloth automatic conveying line. The cloth automatic conveying line of this embodiment includes a plurality of sewing station 1 that arrange side by side, and every sewing station 1 department all is equipped with work platen 101 and installs sewing machine 102 on work platen 101, is equipped with the above-mentioned cloth automatic conveying device of this embodiment in the same one side of all sewing stations 1, and feeding platen 2 sets up with all sewing stations 1 relatively, and guide rail 3 is located feeding platen 2 and keeps away from one side of sewing station 1.

In conclusion, the cloth automatic conveying device and the cloth automatic conveying line of the embodiment drive the cloth 5 to move on the feeding table plate 2 through the sliding of the feeding unit 4 on the guide rail 3, so that the cloth sewn on the last sewing station 1 can be conveyed to the next adjacent sewing station 1 to be sewn in sequence according to the arrangement sequence of the sewing stations 1, the cloth sewn on a certain sewing station 1 can be directly conveyed to any specified sewing station 1 to be sewn, namely, the cross-station conveying of the cloth is realized, and the work of other sewing stations 1 is not influenced. In addition, in the process of conveying the cloth 5 by the feeding unit 4, the position information acquired by the position sensing unit sensing the position identification unit is analyzed and calculated by the control system, so that the error between the actual sliding speed of the feeding unit and the preset sliding speed can be obtained, the first driving mechanism is controlled to adjust the sliding speed of the feeding unit according to the error, the error is compensated and adjusted in time, the sliding speed of the feeding unit is kept at the preset sliding speed, and the feeding unit 4 can be ensured to accurately transmit the cloth 5 to the specified position. Therefore, the cloth 5 can be efficiently conveyed among different sewing stations 1, sewing efficiency is improved, and labor cost is reduced.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. An automatic cloth conveying device is characterized by comprising a control system, a feeding platen (2) used for placing cloth (5), a guide rail (3) arranged in parallel with the feeding platen (2), a feeding unit (4) which is slidably arranged on the guide rail (3) and drives the cloth (5) to move on the feeding platen (2), a first driving mechanism driving the feeding unit (4) to slide on the guide rail (3), a plurality of position identification units arranged on one side of the guide rail (3) at intervals along the sliding direction of the feeding unit (4), and position sensing units arranged on the feeding unit (4), wherein the feeding unit drives the position sensing units to pass through and sense the position identification units; the position sensing unit is connected with the input end of the control system, and the output end of the control system is connected with the first driving mechanism; the feeding unit (4) comprises a sliding seat (6) which is slidably arranged on the guide rail (3), a pressure plate (7) which is arranged on the sliding seat (6) in a lifting manner, and a second driving mechanism which drives the pressure plate (7) to lift on the sliding seat (6), wherein the pressure plate (7) is positioned above the feeding bedplate (2) and is used for driving the cloth (5) to move on the feeding bedplate (2); the first driving mechanism is arranged on the sliding seat (6) and comprises a motor (8), a main roller (9) and a main synchronous belt (10), the main synchronous belt (10) is connected with an output shaft of the motor (8) and a rotating shaft of the main roller (9), and the outer circumferential surface of the main roller (9) is in contact with the upper surface of the guide rail (3); the bottom of slide (6) is equipped with first supplementary gyro wheel (13), the outer periphery of first supplementary gyro wheel (13) with the lower surface of guide rail (3) contacts, first supplementary gyro wheel (13) are located with the liftable on slide (6).

2. Cloth automatic transmission device according to claim 1, characterized in that the position identification unit comprises a chip (28) storing position information, and the position sensing unit comprises a chip reader (29) capable of identifying the chip (28) and reading the position information.

3. Cloth automatic transmission device according to claim 2, characterized in that the position identification unit further comprises a position block (30), and the position sensing unit further comprises a position sensor (31) capable of sensing the position block (30).

4. The cloth automatic transfer device of claim 1, wherein all the position identification units are distributed at equal intervals.

5. Cloth automatic conveying device according to claim 1, characterized in that the guide rail (3) is arranged on a guide rail bracket (27), and all the position identification units are arranged on the guide rail bracket (27).

6. The cloth automatic conveying device according to claim 1, characterized in that the second driving mechanism is arranged on the sliding base (6) and comprises a telescopic rod (18) and a connecting rod structure (19), one end of the connecting rod structure (19) is connected with the telescopic rod (18), the other end of the connecting rod structure is connected with the pressing plate (7), and the telescopic rod (18) drives the connecting rod structure (19) to move and drives the pressing plate (7) to lift.

7. An automatic cloth conveying line, which comprises a plurality of sewing stations (1) arranged side by side, wherein each sewing station (1) is provided with a working table (101) and a sewing machine (102) arranged on the working table (101), and is characterized by further comprising an automatic cloth conveying device as claimed in any one of claims 1 to 6, the automatic cloth conveying device is arranged on the same side of all the sewing stations (1), the feeding table (2) is arranged opposite to all the sewing stations (1), and the guide rail (3) is positioned on one side of the feeding table (2) far away from the sewing stations (1).