CN110699878A

CN110699878A - Multi-machine-head computer embroidery machine

Info

Publication number: CN110699878A
Application number: CN201911130413.0A
Authority: CN
Inventors: 徐剑清; 徐梦楚
Original assignee: Zhuji Yung Rong Machinery Factory
Current assignee: Zhuji Yung Rong Machinery Factory
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-01-17

Abstract

The invention relates to a multi-handpiece computer embroidery machine, which comprises a bedplate and a crossbeam arranged on the bedplate, locate on the platen and be located the fixed frame of girder below and a plurality of aircraft noses of locating on the girder side and along girder length direction distribution, through upper shaft drive between a plurality of aircraft noses, the below of platen is equipped with the lower shaft, one side that the girder dorsad aircraft nose is equipped with main motor, the main shaft, main motor is connected with the main shaft through first belt spare, the main shaft is through the second belt spare and the upper shaft coupling that pass the girder, the main shaft both ends are equipped with vertical setting and the disjunctor case that pierces through the platen, the disjunctor case is located the one side that the girder dorsad aircraft nose, the main shaft tip is equipped with the last drive wheel that is located the box and is located the platen top, first belt pulley is installed in the rotation of platen below, go up drive wheel and first belt pulley and pass through synchronous belt connection. The invention frees the space of the side surface of the crossbeam facing the machine head, so that the cloth can be spread for transmission.

Description

Multi-machine-head computer embroidery machine

Technical Field

The invention relates to the technical field of computer embroidery, in particular to a multi-handpiece computer embroidery machine.

Background

The computerized embroidery machine is an embroidery device integrating light, machine and electricity, which is developed and matured gradually along with the development and application of electronics, computer technology and precision machinery and has high automation and high production efficiency. The computerized embroidery machine can be divided into a single-head machine and a multi-head machine according to the number of machine heads, and the multi-head machine can generally have 2 to 124 machine heads, and more machine heads. Aiming at the requirements of large embroidery product quantity and high embroidery precision, the embroidery machine is promoted to be continuously developed towards the multi-head direction, and the embroidery speed is correspondingly and continuously improved. The multi-head embroidery machine has single frame, vertical matched embroidery and horizontal matched embroidery. The transverse matched embroidery is to input a cloth roll into a fixed frame along a cloth length direction frame for clamping and cloth pressing and fixing, then embroider the cloth in the fixed frame through a machine head, continue to pull the cloth after the embroidery of the frame is finished, so that a second frame of cloth enters the fixed frame, then embroider, and sequentially reciprocate to finish the embroidery work of the whole batch of cloth.

The multi-head embroidery machine generally comprises a table plate, a crossbeam arranged on the table plate, a fixed frame arranged on the table plate and positioned below the crossbeam, and a plurality of machine heads arranged on the crossbeam and distributed along the length direction of the crossbeam, a rotating shuttle box corresponding to the machine heads is arranged below the table plate, the machine heads are in transmission by means of the same upper shaft connection, the rotating shuttle boxes are in transmission by means of the same lower shaft connection, the lower shaft of the upper shaft is respectively positioned above and below the table plate, the main motor drives the upper shaft to rotate through belt pulleys, the two ends of the upper shaft are respectively provided with upper shaft belt pulleys, the two ends of the lower shaft are respectively provided with lower shaft belt pulleys, and the upper shaft belt pulley and the lower shaft pulley are. And a synchronous belt supporting seat connecting box which seals the upper shaft end part, the lower shaft end part, the upper shaft belt pulley, the lower shaft belt pulley and the synchronous cog belt is arranged on one side of the crossbeam facing the machine head. The fixing frame is provided with a cloth pressing device for clamping the edge of the cloth and a cloth tightening device for tightening the cloth before cloth pressing, and the cloth tightening device and the cloth pressing device generally clamp or press the edge of the cloth to realize cloth tightening and cloth pressing. When embroidering, the fixing frame moves on the bedplate, so that the machine head embroiders at different positions of the cloth to form various embroidery patterns.

The above prior art solutions have the following drawbacks: in order to realize the continuous material loading of cloth, place the yardage roll in the one end of fixed frame, then embroider in the fixed frame of sending into of a frame, current frame is accomplished, when the latter frame gets into fixed frame, because the position in the aircraft nose outside can't be removed along cloth width direction to fixed frame, hold-in range supporting seat disjunctor case has blockked between fixed frame and yardage roll, make the cloth need get into fixed frame again after the shrink in width direction, can't expand and carry flatly, can cause the cloth part in the fixed frame to receive the effort to fixed frame intermediate position during the cloth shrink of fixed frame both ends, the tight cloth and the compress work that lead to the cloth in the fixed frame become complicated and difficult operation.

Disclosure of Invention

Aiming at the defects in the prior art, the invention aims to provide a multi-handpiece computerized embroidery machine, wherein a conjoined box is arranged on one side of a crossbeam, which is back to a handpiece, so that the space of the crossbeam, which faces to one side of the handpiece, is left, the path of cloth in a cloth roll when the cloth is fed into a fixed frame is not blocked by the conjoined box, the cloth can be conveyed in a flattening way, and the trouble of cloth tightening and pressing of the cloth in the fixed frame is avoided.

The above object of the present invention is achieved by the following technical solutions: a multi-head computer embroidery machine comprises a bedplate, a crossbeam arranged on the bedplate, a fixed frame arranged on the bedplate and positioned below the crossbeam, and a plurality of machine heads arranged on one side surface of the crossbeam and distributed along the length direction of the crossbeam, wherein the plurality of machine heads are in upper shaft transmission, a lower shaft used for driving a rotating shuttle box corresponding to the machine heads is arranged below the bedplate, a main motor and a main shaft are arranged on one side of the crossbeam opposite to the machine heads, the main motor is connected with the main shaft through a first belt piece, the main shaft is connected with the upper shaft through a second belt piece penetrating through the crossbeam, two ends of the main shaft are respectively provided with a vertically arranged connecting box penetrating through the bedplate, the connecting box is positioned on one side of the crossbeam opposite to the machine heads, the end part of the main shaft is provided with an upper transmission wheel positioned in a box body and above the bedplate, a first lower belt wheel is rotatably arranged below the bedplate, and, the first lower belt pulley is connected with the lower shaft through a third belt piece.

By adopting the technical scheme, the conjoined box is arranged on the side face of the crossbeam back to the machine head, the main motor rotates to drive the main shaft to rotate, the main shaft drives the upper shaft and the upper driving wheel respectively, the lower shaft is driven to rotate through the upper driving wheel, and the space of the crossbeam facing the side face of the machine head is left after transmission, so that cloth can be unfolded for transmission, and troubles caused by the tensioning and cloth pressing work of the cloth are avoided.

The invention is further configured to: the first belt piece comprises a first main shaft belt pulley, a main belt pulley and a first belt, the first belt pulley is arranged on the main shaft, the main belt pulley is arranged on the main shaft, and the first belt pulley penetrates through the girder and is connected with the first main shaft belt pulley and the main belt pulley; the second belt piece comprises a main shaft second belt pulley, an upper shaft belt pulley and a second belt, the main shaft second belt pulley is arranged on the main shaft, the upper shaft belt pulley is fixed on the upper shaft, and the second belt penetrates through the crossbeam and is connected with the main shaft second belt pulley and the upper shaft belt pulley; the third belt spare includes belt pulley, third belt and lower shaft pulley under the second, belt pulley and first belt pulley coaxial arrangement just are located the box under the second, lower shaft pulley sets up on the lower shaft, belt pulley and lower shaft pulley under the second are connected to the third belt.

Through adopting above-mentioned technical scheme, synchronous belt passes the platen in order to drive first belt pulley downwards vertically, connects second belt pulley and lower axle belt pulley in order to drive the lower axle through the third belt of horizontally again, simple structure, and transmission effect is good.

The invention is further configured to: the main motor is provided with two and is located main shaft quarter length, three-quarter length department respectively, first belt spare is provided with two and sets up with main motor one-to-one, the second belt spare is provided with two, main shaft both ends protrusion in the both ends face of girder, two main shaft second belt pulley sets up respectively in the both ends of main shaft.

Through adopting above-mentioned technical scheme, main motor has two drive main shafts that can be better and rotates, and two main motors are located main shaft quarter length, three-quarter length department respectively can better balanced moment of torsion, the life of extension main shaft.

The invention is further configured to: the cloth feeding device comprises a cloth feeding rack, a cloth feeding motor and a cloth feeding roller, the cloth feeding roller is detachably and rotatably installed on the cloth feeding rack and winds cloth to be embroidered, and the cloth feeding motor is installed on the cloth feeding rack and connected with the cloth feeding roller to drive the cloth feeding roller to rotate to discharge the cloth.

By adopting the technical scheme, the cloth feeding roller wound with cloth is placed on the cloth feeding rack and driven by the cloth feeding motor, and after the embroidery of each frame is finished, the cloth on the cloth feeding roller is unwound by pulling or the cloth feeding motor rotates and moves into the fixed frame to wait for the embroidery; the frame is changed through manual and semi-automatic cloth of motor, and the frame process of changing is more simple and convenient to production efficiency has been promoted.

The invention is further configured to: the batching device comprises a batching frame, a batching motor and a batching roller, wherein the batching roller is detachably and rotatably arranged on the batching frame and used for coiling cloth embroidered to be finished, and the batching motor is arranged on the batching frame and connected with the batching roller to drive the batching roller to rotate for batching.

Through adopting above-mentioned technical scheme, after a frame cloth is embroidered, utilize the batching motor to rotate and drive the batching roller and rotate, with the cloth around rolling up to the batching roller on, during the batching, the cloth moves to the batching roller place direction along cloth length direction to in having pulled new cloth to fixed frame, prepare the embroidery processing, made things convenient for the book of the cloth that has embroidered, can provide power for the fabric decoiling on the work feed roller simultaneously.

The invention is further configured to: a first fixed height roller is arranged between the cloth feeding roller and the fixed frame, a second fixed height roller is arranged between the cloth rolling roller and the fixed frame, and cloth bypasses the lower parts of the first fixed height roller and the second fixed height roller; and the surfaces of the first fixed-height roller and the second fixed-height roller are provided with flattening threads.

By adopting the technical scheme, during processing, after being unwound from the cloth feeding roller, the cloth firstly bypasses below the first constant-height roller and then enters the fixed frame to be tightened and pressed, the cloth height when the cloth is input into the fixed frame is limited by the first constant-height roller, the difference between the cloth feeding roller height and the cloth pressing height during embroidering is reduced, and the upward acting force of the cloth on a cloth tightening and cloth pressing structure is reduced; the flattening threads have a flattening effect on the cloth, so that the cloth is kept in a flattened state during conveying, and cloth tightening and cloth pressing work of the cloth in the fixing frame is facilitated.

The invention is further configured to: the cloth rolling motor and the cloth feeding motor are connected with a returning module which is used for loosening cloth between the cloth rolling roller and the fixed frame and between the cloth feeding roller and the fixed frame before cloth pressing; the cloth rolling and feeding device comprises a cloth rolling motor, a cloth feeding motor and a backspacing module, wherein the backspacing module comprises a backspacing controller which is electrically connected with the cloth rolling motor and the cloth feeding motor and is used for controlling the cloth rolling motor to rotate reversely before cloth pressing and controlling the cloth feeding motor to continue to rotate for a certain angle and number of turns before cloth pressing.

The process of work feed and batching can make the cloth be in the state of stretching tightly, treat that the cloth of embroidery send fixed frame in after, work feed motor and batching motor stall earlier, tight cloth and compress work carry out, in the tight cloth compress work, can take place to pull the cloth, if the cloth is the state of stretching tightly before tight cloth compress, carry out the compress again and can make the cloth take place to stretch out, or because of the big condition that can't take place the clamp plate and can not press down of cloth intensity, when fixed frame removal embroidery, also can hinder the normal removal of fixed frame because of not having the surplus of cloth length, make the cloth take place to fracture even.

By adopting the technical scheme, after the part to be embroidered on the cloth is sent to the fixed frame, the rollback module is utilized to control the cloth rolling motor to rotate reversely for a certain angle or number of turns, and control the cloth feeding motor to rotate forwards for a certain angle or number of turns, so that the cloth feeding roller continuously sends out one section of cloth, and the cloth rolling motor loosens one section of cloth, thereby ensuring that the cloth can not be broken due to overlarge tension when the cloth is tightly pressed.

The invention is further configured to: the fixed frame comprises a wide frame and a long frame, the wide frame is arranged in the width direction of the cloth, the long frame is arranged in the conveying direction of the cloth, the wide frame and the long frame are respectively provided with a wide cloth clamping device and a long cloth clamping device, the long cloth clamping device comprises a pressing plate hinged to the long frame and a cloth pressing cylinder arranged on the long frame and facing the fixed frame, a piston rod of the cloth pressing cylinder is hinged to the pressing plate, the long edge of the cloth penetrates through the space between the pressing plate and the long frame, and the piston rod of the cloth pressing cylinder drives the pressing plate to overturn and press the cloth when extending.

Through adopting above-mentioned technical scheme, the broadside presss from both sides the cloth device and fixes the broadside of cloth, and the long limit that presss from both sides the cloth device admittedly on long limit is fixed the cloth to make the cloth fix and wait to embroider in fixed frame, specifically, the long limit presss from both sides the cloth device and utilizes the compress cylinder to promote the clamp plate upset, thereby utilizes the clamp plate to push down the long limit of cloth and fixes the long limit of cloth.

The invention is further configured to: be provided with a plurality of tight cloth devices on the long frame, tight cloth device is including tight cloth cylinder and pneumatic clip, tight cloth cylinder sets up on long frame and distributes along long frame length direction, pneumatic clip sets up on the piston rod of tight cloth cylinder and sets up towards fixed frame.

By adopting the technical scheme, when the long edge clamps the cloth, the pressing plate is in a turning-up state, the piston rod of the cloth pressing cylinder is in an extension state and enables the pneumatic clamp to extend into the space between the pressing plate and the long frame, then one long edge of the cloth is pulled into the clamping opening of the pneumatic clamp, the pneumatic clamp is controlled to be closed to clamp the cloth edge, then the piston rod of the cloth pressing cylinder contracts, the pneumatic clamp moves out of the range below the pressing plate along the width direction of the cloth to tension the cloth, then the piston rod of the cloth pressing cylinder is controlled to extend to push the pressing plate to turn over, the cloth is pressed, and the cloth pressing on the long edge of the cloth; the pneumatic clamp is used for clamping the cloth edge before cloth pressing, so that when hands loosen the cloth, the cloth contracts due to internal tension, the cloth is in a flat state when the cloth pressing cylinder pushes the pressing plate to press the cloth, and the cloth pressing effect is guaranteed.

The invention is further configured to: the broadside cloth clamping device comprises cloth clamping strips arranged on the broadside frame and distributed along the length direction of the broadside and cloth clamps used for clamping the cloth clamping strips so as to fix the broadside of the cloth.

Through adopting above-mentioned technical scheme, utilize the cloth to press and carry out the broadside fixed of broadside card with the broadside card of cloth between cloth clamp and cloth holding strip on cloth holding strip, easy operation.

In conclusion, the beneficial technical effects of the invention are as follows:

the connection box is arranged on the side face, back to the machine head, of the crossbeam, the main motor rotates to drive the main shaft to rotate, the main shaft drives the upper shaft and the upper driving wheel respectively, and the upper driving wheel drives the lower shaft to rotate;

the two main motors can better drive the main shaft to rotate, and the two main motors are respectively positioned at the quarter length and the three-quarter length of the main shaft, so that the torque can be better balanced, and the service life of the main shaft is prolonged;

the cloth tightening device is used for tightening cloth before cloth pressing, the edges of the cloth can be always positioned in the clamping openings of the pneumatic clamps in the cloth tightening and loosening processes, new feeding work of the cloth to be embroidered can be completed as long as the part finished by embroidering is rolled up by the cloth roller when the frame is replaced, then the process of tightening the cloth pressing is repeated, and the second frame can be embroidered again, so that the operation is simple and the efficiency is high.

Drawings

FIG. 1 is a schematic structural view of a multi-head computerized embroidery machine according to the present embodiment;

FIG. 2 is a schematic diagram of a transmission structure of a main motor, a main shaft, an upper shaft and a lower shaft in the multi-head computerized embroidery machine of the embodiment;

FIG. 3 is an enlarged partial schematic view of portion B of FIG. 2;

FIG. 4 is a cross-sectional view A-A of FIG. 1;

FIG. 5 is an enlarged partial schematic view of section E of FIG. 1;

FIG. 6 is an enlarged partial view of the portion C of FIG. 4, showing the cloth fastening device in a pre-clothed state;

FIG. 7 is a schematic enlarged view of a portion C of FIG. 4, showing the cloth fastening device in a state of pressing the cloth;

FIG. 8 is an exploded view of the cloth pressing cylinder, the connecting hinge and the connecting rod of the multi-head computerized embroidery machine according to the present embodiment, illustrating the installation relationship and structure of the three;

FIG. 9 is a partial schematic view of the structure of the long frame, the long cloth clamping device and the cloth clamping device of the multi-head computerized embroidery machine according to the embodiment;

fig. 10 is a partially enlarged schematic view of a portion D in fig. 9.

In the figure, 11, the platen; 12. a girder; 13. a fixing frame; 131. a long frame; 132. a wide frame; 133. a cloth holding strip; 134. clamping the cloth; 14. a machine head; 15. a main motor; 16. a main shaft; 17. an upper shaft; 18. a lower shaft; 151. a first belt member; 152. a first pulley of the main shaft; 153. a primary pulley; 154. a first belt; 171. a second belt member; 172. a second pulley of the main shaft; 173. an upper shaft belt pulley; 174. a second belt; 181. a third belt member; 182. a lower shaft pulley; 183. a second lower pulley; 184. a third belt; 19. a conjoined box; 191. a box body; 192. a driving wheel is arranged; 193. a first lower pulley; 194. a synchronous belt; 2. pressing a plate; 21. a mounting seat; 22. a strut; 23. layering; 24. pressing the needle; 3. a cloth pressing cylinder; 31. an inner threaded hole; 32. an outer stud; 33. a lock nut; 34. a spanner boss; 4. a cloth tightening device; 41. a cloth tightening cylinder; 42. a pneumatic clamp; 43. anti-skid lines; 44. a synchronous connecting plate; 5. fixing grooves; 52. a flexible strip; 54. a convex strip; 55. anti-slip ribs; 6. connecting the hinge; 61. a moving plate; 62. fixing the sheet; 63. mounting holes; 7. a connecting rod; 71. a side plate; 72. a connecting plate; 73. a first pin hole; 731. a first pin shaft; 74. a second pin hole; 741. a second pin shaft; 75. a first clamp spring; 76. a second clamp spring; 77. a first hinge loop; 78. a second hinge loop; 81. a cloth feeding device; 82. a cloth feeding rack; 83. a cloth feeding motor; 84. a cloth feeding roller; 85. a cloth rolling device; 86. a cloth rolling machine frame; 87. a cloth winding motor; 88. a cloth roller; 91. a rollback controller; 96. a first elevation roller; 97. and a second fixed-height roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Referring to fig. 1, the multi-head 14 embroidery machine disclosed by the invention comprises a bedplate 11, a girder 12 fixed on the bedplate 11, a fixed frame 13 arranged on the bedplate 11 and positioned below the girder 12, and a plurality of heads 14 arranged on the girder 12 and distributed along the length direction of the girder 12. The platen 11 is provided at both ends thereof with a cloth feeding device 81 and a cloth winding device 85.

As shown in fig. 2, the lower part of the bedplate 11 is provided with a plurality of rotating shuttle boxes corresponding to the machine heads 14 one by one, the plurality of rotating shuttle boxes are driven by the same lower shaft 18, the plurality of machine heads 14 are connected by the same upper shaft 17, and the upper shaft 17 is positioned right above the lower shaft 18.

As shown in fig. 1 and 2, a main shaft 16 and a main motor 15 are arranged on one side of the girder 12, which faces away from the machine head 14, the main shaft 16 is horizontally arranged and is parallel to the girder 12, two main motors 15 are arranged on the girder 12, an output shaft of the main motor 15 is horizontally arranged and is connected with the main shaft 16 through a first belt member 151, the main shaft 16 is connected with an upper shaft 17 through a second belt member 171, and two ends of the main shaft 16 extend out of the end portion of the girder 12 and are connected with a lower shaft 18 through a third belt member 181.

As shown in fig. 3, the first belt member 151 includes a main shaft first belt pulley 152, a main belt pulley 153 and a first belt 154, the main belt pulley 153 is fixed on the output shaft of the main motor 15, the two main shaft first belt pulleys 152 are respectively fixed at one quarter and three quarters of the length of the main shaft 16, and the two main shaft first belt pulleys 152 are connected with the corresponding main belt pulley 153 through the first belt 154, so as to drive the main shaft 16 by the main motor 15.

The second belt member 171 includes a second spindle belt pulley 172, an upper shaft belt pulley 173, and a second belt 174, the second spindle belt pulley 172 is fixed on the spindle 16 and tightly attached to the second spindle belt pulley 172, the upper shaft belt pulley 173 is mounted on the upper shaft 17, and the second spindle belt pulley 172 is connected to the upper shaft belt pulley 173 through the second belt 174 to drive the upper shaft 17 to rotate.

As shown in fig. 1 and 3, two connected boxes 19 are fixed on a side wall of the girder 12 opposite to the head 14, the connected boxes 19 are respectively located at two end portions of the girder 12, an upper driving wheel 192 located above the bedplate 11, a first lower belt pulley 193 located below the bedplate 11 and a synchronous belt 194 connecting the upper driving wheel 192 and the first lower belt pulley 193 are arranged in the connected boxes 19, two ends of the main shaft 16 respectively extend into the two connected boxes 19, the upper driving wheel 192 is fixed at an end portion of the main shaft 16, and the first lower belt pulley 193 is rotatably mounted with an inner wall of the connected box 19 and is located right below the upper driving wheel 192.

The third belt member 181 includes a lower shaft belt pulley 182, a second lower belt pulley 183, and a third belt 184, the lower shaft belt pulley 182 is disposed on the lower shaft 18, the second lower belt pulley 183 and the first lower belt pulley 193 are coaxially disposed, the second lower belt pulley 183 and the lower shaft belt pulley 182 are at the same height position, and the third belt 184 connects the second lower belt pulley 183 and the lower shaft belt pulley 182.

The arrangement is such that the side of the girder 12 facing the head 14 is free for the material to pass through.

As shown in fig. 1, the cloth feeding device 81 includes a cloth feeding frame 82, a cloth feeding motor 83 and a cloth feeding roller 84, a cloth rolling roller 88 is detachably rotatably installed on the cloth rolling frame 86 and used for rolling the cloth finished by embroidering, and the cloth rolling motor 87 is installed on the cloth rolling frame 86 and connected with the cloth rolling roller 88 to drive the cloth rolling roller 88 to rotate the cloth rolling.

As shown in fig. 1 and 4, the cloth rolling device 85 includes a cloth rolling frame 86, a cloth rolling motor 87 and a cloth rolling roller 88, the cloth rolling roller 88 is detachably rotatably installed on the cloth rolling frame 86 and is used for rolling the cloth finished by embroidery, and the cloth rolling motor 87 is installed on the cloth rolling frame 86 and is connected with the cloth rolling roller 88 to drive the cloth rolling roller 88 to rotate the cloth rolling.

As shown in fig. 1, the cloth feeding motor 83 and the cloth rolling motor 87 are connected to a retracting module, the retracting module includes a retracting controller 91, the retracting controller 91 is installed on the cloth rolling frame 86, and is electrically connected to the cloth rolling motor 87 and the cloth feeding motor 83, and is used for controlling the cloth rolling motor 87 to rotate reversely for a certain angle or number of turns before cloth pressing, and controlling the cloth feeding motor 83 to continue to rotate for a certain angle or number of turns before cloth pressing, so that the cloth between the cloth rolling roller 88 and the fixed frame 13, and between the cloth feeding roller 84 and the fixed frame 13 can be in a loose state between cloth tightening and cloth pressing, the cloth is prevented from being excessively tightened and broken during cloth pressing, and a moving allowance of the fixed frame 13 during embroidering is provided during embroidering.

As shown in fig. 1, the girder 12 is provided with a first fixed height roller 96 and a second fixed height roller 97, the first fixed height roller 96 is positioned between the fixed frame 13 and the cloth feeding roller 84, and the first fixed height roller 96 has a height position which is the same as or close to the height of the cloth in the fixed frame 13 and is positioned at the edge of the bedplate 11 close to the cloth feeding frame 82. The second height-fixing roller 97 is positioned between the fixed frame 13 and the cloth roller 88 and at the edge of the bedplate 11 close to the cloth rolling frame 86, and the height position of the second height-fixing roller 97 is the same as or close to the height of the cloth in the fixed frame 13. The first elevation roller 96 and the second elevation roller 97 are rotatably connected to the girder 12.

The first and second elevation rollers 96 and 97 are each provided with a flattening thread (not shown in the figure) on the surface.

As shown in fig. 1 and 4, the fixing frame 13 includes a wide frame 132 along the cloth width direction and a long frame 131 along the cloth conveying direction, and the cloth clamping device includes a wide cloth clamping device and a long cloth clamping device.

As shown in fig. 5, the broadside cloth clamping device includes cloth clamping strips 133 disposed on the broadside frame 132 and distributed along the length direction of the broadside, and cloth clamps 134 for clamping the cloth clamping strips 133 to fix the broadsides of the cloth. Since the width of the cloth is generally in the range of one to two meters, the cloth clips 134 may be provided in two to three pieces.

As shown in fig. 4 and 6, the long-side cloth clamping device comprises a pressing plate 2 and a cloth pressing cylinder 3,

as shown in fig. 1 and 6, a plurality of cloth pressing cylinders 3 are fixed to the long frame 131, and the plurality of cloth pressing cylinders 3 are distributed along the longitudinal direction of the long frame 131.

As shown in fig. 6, the fixing groove 5 extending along the length direction of the long frame 131 is formed on the surface of the long frame 131 facing the cloth center of the cloth pressing cylinder 3.

As shown in fig. 6 and 7, the pressing plate 2 is hinged to the long frame 131 through the connecting hinge 6 and is located on one side of the cloth pressing cylinder 3 facing the center of the cloth and above the fixing groove 5. When the pressing plate 2 is turned over, a piston rod for tightly tightening the cloth cylinder 41, a synchronous connecting plate 44 and a pneumatic clamp 42 are arranged between the part of the pressing plate 2 far away from the inside of the fixed frame 13 and the long frame 131 and extend into a gap between the pressing plate 2 and the fixed groove 5.

As shown in fig. 8, the moving piece 61 of the connecting hinge 6 is fixedly connected to the surface of the pressing plate 2 facing away from the fixing groove 5, and the fixed piece 62 is fixedly connected to the long frame 131 of the long frame 131. The moving plate 61 is provided with a mounting hole 63, a mounting seat 21 is embedded in the mounting hole 63, the mounting seat 21 is fixed on the pressing plate 2 through a bolt, and a supporting rod 22 is fixed on the mounting seat 21.

As shown in fig. 8, an inner threaded hole 31 is formed at the end of the piston rod of the cloth pressing cylinder 3, an outer stud 32 is connected to the inner threaded hole 31 in a threaded manner, a lock nut 33 is connected to the outer stud 32 in a threaded manner, the lock nut 33 is located between the piston rod of the cloth pressing cylinder 3 and the head of the outer stud 32, and the lock nut 33 abuts against the end of the piston rod of the cloth pressing cylinder 3. The end of the piston rod of the cloth pressing cylinder 3 is provided with a spanner boss 34, so that a spanner can be conveniently used to be matched with the spanner boss 34 to rotate the piston rod of the cloth pressing cylinder 3, and the total length of the piston rod of the cloth pressing cylinder 3 and the outer screw column 32 can be changed.

The head of the outer stud 32, which faces away from the cloth pressing cylinder 3, is fixed with a first hinge ring 77, and is hinged with a connecting rod 7 through the first hinge ring 77.

Connecting rod 7 is the I shape and includes both sides board 71 and connects the connecting plate 72 of both sides board 71, first pinhole 73 has been seted up to both sides board 71 near the one end of compress cylinder 3, second pinhole 74 has been seted up to the one end of keeping away from compress cylinder 3, two first pinholes 73 are worn to be equipped with same first round pin axle 731 and are fixed through first jump ring 75, two second pinholes 74 are worn to be equipped with same second round pin axle 741 and are passed through second jump ring 76 fixed connection, first round pin axle 731 is located to first articulated ring 77 cover, the position cover that lies in between both sides board 71 on second round pin axle 741 is equipped with second articulated ring 78, second articulated ring 78 is fixed on branch 22.

As shown in fig. 6 and 7, an upward protruding convex strip 54 is integrally provided in the fixing groove 5, the cross section of the convex strip 54 along the length direction of the fixing groove 5 is circular, and the surface of the convex strip 54 is provided with anti-slip convex ribs 55 extending in the axial direction along the circumferential direction of the convex strip 54.

Pressing strip 23 is fixed at the bottom of pressing plate 2, pressing strip 23 is located on one side of raised line 54 back to the center of the cloth, pressing pins 24 distributed along the length direction of pressing strip 23 are arranged on pressing strip 23, flexible strip 52 is arranged in fixing groove 5, flexible strip 52 is a foam adhesive tape, pressing strip 23 is attached to flexible strip 52 when pressing air cylinder 3 pushes pressing plate 2 to rotate downwards, and pressing pins 24 penetrate through the edge of the cloth and are inserted into flexible strip 52.

The long frame 131 is provided with a cloth tightening device 4, and the cloth tightening device 4 comprises a cloth tightening cylinder 41 and a pneumatic clamp 42.

As shown in fig. 6 and 9, the cloth fastening cylinders 41 are provided on the long frame 131 and distributed in plural along the longitudinal direction of the long frame 131, and the pneumatic clamps 42 are attached to the piston rods of the cloth fastening cylinders 41 and are provided facing the fixed frame 13.

As shown in fig. 9 and 10, the cloth tightening cylinder 41 is a double-shaft parallel-bar cylinder, two piston rods of the cloth tightening cylinder 41 are commonly connected with a synchronous connecting plate 44, and two pneumatic clamps 42 of each cloth tightening device 4 are respectively arranged at two ends of the synchronous connecting plate 44. The surface of the pneumatic clamp 42 contacting with the cloth surface is provided with anti-slip lines 43.

The implementation principle of the embodiment is as follows:

initially, the piston rod of the cloth pressing cylinder 3 is in a contracted state, so that the pressing plate 2 is in a turned-up state, and the cloth clamp 14 is in a taken-down state. The cloth that needs to be embroidered is around rolling up on work feed roller 83, passes the cloth head on work feed roller 83 first fixed high roller 96 below, draws in fixed frame 13 again, through fixed frame 13 after again around second fixed high roller 97 below, and in the duplex winding is rolled up cloth motor 87, for practicing thrift the cloth, can fix the cloth head on the broadside cloth clamping device who is close to cloth rolling device 85 earlier, wait to accomplish to coil up the cloth head on cloth rolling roller 88 again after the embroidery.

In use, the cloth is fed by rotation of the cloth feeding motor 83, and is rolled by rotation of the cloth rolling motor 87.

One wide edge of the cloth is placed on the cloth holding strip 13, the cloth clamp 14 is manually pressed on the cloth holding strip 13, and the wide edge of the cloth is fixed through the cloth clamp 14 and the cloth holding strip 13. And the other broadside of the cloth is fixed in the same way.

When the long side of the cloth is fixed, the pressing plate 2 is in a turned-up state, the piston rod of the cloth tightening cylinder 41 is in an extended state so that the pneumatic clamp 42 is positioned between the pressing plate 2 and the fixing groove 5, and the pneumatic clamp 42 is in an open state.

The long edge of the cloth is manually straightened, the long edge of the cloth enters a clamping opening of the pneumatic clamp 42, the pneumatic clamp 42 is controlled to clamp tightly, then the piston rod of the cloth pressing cylinder 41 contracts to drive the pneumatic clamp 42 to move along the direction of the width direction of the cloth far away from the center of the cloth and move out of the position below the pressing plate 2, the cloth is tensioned in the width direction in the process, then the piston rod of the cloth pressing cylinder 3 extends to push the pressing plate 2 to rotate reversely, the cloth is pressed on the flexible strip 52, and in the pressing process, the pressing needle 24 is inserted into the flexible strip 52.

At this time, the cloth sequentially passes through the space between the pressing plate 2 and the convex strip 54 and the space between the lower part of the pressing plate 2 and the flexible strip 52 along the width direction of the cloth, and then passes through the fixing groove 5 to be clamped by the pneumatic clamp 42, so that the cloth tightening and pressing process of one long edge of the cloth is completed.

And then the other long edge of the cloth is pressed and fixed according to the operation.

The embroidery process is then carried out on the cloth in the fixed frame 1 by means of the head 14 of the embroidery machine.

After the embroidery is finished, starting the cloth pressing cylinder 3, enabling a piston rod of the cloth pressing cylinder 3 to contract, pulling the connecting rod 7 to move and driving the pressing plate 2 to turn up, and enabling the pressing needle 24 to be separated from the flexible strip 52 and loosen the cloth; the piston rod of the cloth tightening cylinder 41 is controlled to extend, the pneumatic clamp 42 extends into the position between the pressing plate 2 and the fixing groove 5 through the gap between the pressing plate 2 and the fixing groove 5, and then the pneumatic clamp 42 releases the long edge of the cloth.

At the moment, the width of the cloth is almost the same as the actual width of the cloth, and the cloth is in a natural spreading state, so that the long edge of the cloth is still in the clamping range of the clamping opening.

The cloth clamp 14 in the width direction of the cloth is loosened, and then the cloth is pulled in the length direction of the cloth to change the width, so that the part to be embroidered enters the fixing frame 1. And then repeating the processes of clamping the wide edges, tightening the long edges and pressing the cloth to remember to finish the fixing work of the new cloth, and carrying out the embroidering work of the second width. And (4) sequentially analogizing the follow-up embroidering until the whole cloth is embroidered, loosening the wide edge and the long edge of the cloth, and taking down the cloth.

The cloth pressing clamp 14 on the wide side and the long side of the cloth can have the following cloth sequence: the cloth clamping process includes the steps of clamping cloth on one wide edge, clamping cloth on two wide edges simultaneously, clamping cloth on two wide edges and two long edges simultaneously, tightening cloth on the opposite long edges, and clamping cloth on the wide edges.

After the compress cylinder 3, the connecting rod 7 and the connecting hinge 6 are all installed, the total length of the piston rod and the outer bolt 32 can be adjusted by utilizing the rotation of the piston rod, so that the installation and debugging are convenient, the piston rod is fixed without rotating in work by screwing the locking nut 33, and the total length of the piston rod and the outer bolt 32 of the compress cylinder 3 is kept unchanged in use.

After the cloth pressing cylinder 3 pushes the pressing plate 2 to rotate, the pressing needle 24 at the bottom of the pressing plate 2 is inserted into the flexible strip 52 to advance and fix the cloth, so that the fixation is more stable.

The upper shaft 15 is driven by the main shaft to rotate, the lower shaft 16 is driven by the upper belt wheel 151, the synchronous belt 19 and the lower belt wheel 161 to rotate, the synchronous belt 19 between the upper shaft 15 and the lower shaft 16 is bent by the middle belt wheel 17 and the tensioning belt wheel 18, and therefore a space for flattening and conveying cloth is reserved.

Example 2: the difference between embodiment 2 and embodiment 1 is only that the structure of the broadside cloth clamping device is different, the structure of the broadside cloth clamping device in embodiment 2 is the same as that of the long-side cloth clamping device, and the broadside cloth clamping device comprises the pressing plate 2 and the cloth pressing cylinder 3, the structure of the broadside frame 132 is also the same as that of the long-side frame 131, and the broadside frame 132 is also provided with the cloth tightening devices 4 distributed along the length direction of the broadside frame 132.

Example 3: the difference between the embodiment 3 and the embodiment 1 is only that the cloth feeding device 81 is installed at a different position, in the embodiment 3, the cloth feeding frame 82 of the cloth feeding device 81 is fixed on the side of the girder 12 facing the head 14, and the cloth feeding motor 83 is installed on the girder 12 or the cloth feeding frame 82 and connected with the cloth feeding roller 84 to rotate the cloth feeding roller 84.

Example 4: the difference between the embodiment 4 and the embodiment 1 is only that the cloth rolling device 85 is installed at a different position, in the embodiment 4, the cloth rolling frame 86 of the cloth rolling device 85 is fixed on the side of the girder 12 facing the head 14, and the cloth rolling motor 87 is installed on the girder 12 or the cloth rolling frame 86 and connected with the cloth rolling roller 88 to drive the cloth rolling roller 88 to roll the cloth.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the invention are covered by the protection scope of the invention.

Claims

1. The utility model provides a multimachine head computerized embroidery machine, includes platen (11), set up girder (12) on platen (11), set up on platen (11) and be located fixed frame (13) of girder (12) below and a plurality of aircraft nose (14) that set up on girder (12) one side and distribute along girder (12) length direction, through upper shaft (17) transmission between a plurality of aircraft noses (14), the below of platen (11) is equipped with lower shaft (18) that are used for driving the shuttle box that corresponds with aircraft nose (14), its characterized in that: one side of the girder (12) back to the machine head (14) is provided with a main motor (15) and a main shaft (16), the main motor (15) is connected with the main shaft (16) through a first belt piece (151), the main shaft (16) is connected with the upper shaft (17) through a second belt piece (171) penetrating through the girder (12), the two ends of the main shaft (16) are respectively provided with a connecting box (19) which is vertically arranged and penetrates through the bedplate (11), the connecting box (19) is positioned at one side of the girder (12) back to the machine head (14), an upper driving wheel (192) which is positioned in the box body (191) and above the bedplate (11) is arranged at the end part of the main shaft (16), a first lower belt pulley (193) is rotatably arranged below the bedplate (11), an upper driving wheel (192) is connected with the first lower belt pulley (193) through a synchronous belt (194), the first lower pulley (193) is connected with the lower shaft (18) through a third belt member (181).

2. The multi-head computerized embroidery machine of claim 1, wherein: the first belt piece (151) comprises a first main shaft belt pulley (152), a main belt pulley (153) and a first belt (154), the first belt (154) is arranged on the main shaft (16), the main belt pulley (153) is arranged on the main shaft (16), and the first belt (154) passes through the girder (12) and is connected with the first main shaft belt pulley (152) and the main belt pulley (153); the second belt piece (171) comprises a second main shaft belt pulley (172), an upper shaft belt pulley (17) and a second belt (174), the second main shaft belt pulley (172) is arranged on the main shaft (16), the upper shaft belt pulley (17) is fixed on the upper shaft (17), and the second belt (174) penetrates through the girder (12) and is connected with the second main shaft belt pulley (172) and the upper shaft belt pulley (17); third belt spare (181) include pulley (183), third belt (184) and lower axle belt pulley (182) under the second, pulley (183) and first lower pulley (193) coaxial arrangement just are located box (191) under the second, lower axle belt pulley (182) set up on lower axle (18), pulley (183) and lower axle belt pulley (182) are down connected to third belt (184).

3. The multi-head computerized embroidery machine of claim 1, wherein: the main motor (15) is provided with two and is located main shaft (16) quarter length, three-quarter length department respectively, first belt spare (151) are provided with two and set up with main motor (15) one-to-one, second belt spare (171) are provided with two, main shaft (16) both ends protrusion in the both ends face of girder (12), two main shaft second belt pulley (172) set up respectively in the both ends of main shaft (16).

4. The multi-head computerized embroidery machine of claim 1, wherein: the cloth feeding device (81) and the cloth rolling device (85) are respectively arranged at two ends of the bedplate (11), the cloth feeding device (81) comprises a cloth feeding rack (82), a cloth feeding motor (83) and a cloth feeding roller (84), the cloth feeding roller (84) is detachably and rotatably arranged on the cloth feeding rack (82) and wound with cloth to be embroidered, and the cloth feeding motor (83) is arranged on the cloth feeding rack (82) and connected with the cloth feeding roller (84) to drive the cloth feeding roller (84) to rotate to discharge the cloth.

5. The multi-head computerized embroidery machine of claim 1, wherein: cloth rolling device (85) include batching frame (86), batching motor (87) and cloth roller (88), cloth roller (88) detachably rotates and installs on batching frame (86) and is used for around the cloth that the embroidery was accomplished, batching motor (87) install on batching frame (86) and with cloth roller (88) be connected in order to drive cloth roller (88) rotation batching.

6. The multi-head computerized embroidery machine of claim 5, wherein: a first height fixing roller (96) is arranged between the cloth feeding roller (84) and the fixed frame (13), a second height fixing roller (97) is arranged between the cloth rolling roller (88) and the fixed frame (13), and cloth bypasses below the first height fixing roller (96) and the second height fixing roller (97); and flattening threads are arranged on the surfaces of the first height fixing roller (96) and the second height fixing roller (97).

7. The multi-head computerized embroidery machine of claim 5, wherein: the cloth rolling motor (87) and the cloth feeding motor (83) are connected with a returning module which is used for loosening cloth between the cloth rolling roller (88) and the fixed frame (13) and between the cloth feeding roller (84) and the fixed frame (13) before cloth pressing; the backing module comprises a backing controller (91), wherein the backing controller (91) is electrically connected with the cloth rolling motor (87) and the cloth feeding motor (83) and is used for controlling the cloth rolling motor (87) to rotate reversely before cloth pressing and controlling the cloth feeding motor (83) to continue to rotate for a certain angle and number of turns before cloth pressing.

8. The multi-head computerized embroidery machine of claim 1, wherein: fixed frame (13) are including wide frame (132) and long frame (131) along cloth direction of delivery along cloth width direction, are provided with broadside on wide frame (132) and long frame (131) respectively and press from both sides the cloth device and long limit and press from both sides the cloth device, long limit presss from both sides the cloth device including articulating clamp plate (2) on long frame (131) and set up on long frame (131) and towards compress cylinder (3) that set up in fixed frame (13), the piston rod of compress cylinder (3) is articulated with clamp plate (2), and the long limit of cloth passes between clamp plate (2) and long frame (131), drive clamp plate (2) upset and press on the cloth when the piston rod extension of compress cylinder (3).

9. The multi-head computerized embroidery machine of claim 8, wherein: be provided with a plurality of tight cloth device (4) on long frame (131), tight cloth device (4) are including tight cloth cylinder (41) and pneumatic clip (42), tight cloth cylinder (41) set up on long frame (131) and along long frame (131) length direction distribution, pneumatic clip (42) set up on the piston rod of tight cloth cylinder (41) and set up towards fixed frame (13).

10. The multi-head computerized embroidery machine of claim 8, wherein: the broadside cloth clamping device comprises cloth clamping strips (133) which are arranged on a broadside frame (132) and distributed along the length direction of the broadside, and cloth clamps (134) which are used for clamping the cloth clamping strips (133) so as to fix the broadsides of the cloth.