CN210826621U - Sewing machine - Google Patents

Abstract

The utility model provides a sewing machine belongs to sewing machine technical field. It has solved the current problem that sewing machine made the quality poor and inefficiency. The sewing machine comprises a rack and a sewing machine head, wherein a cloth positioning mechanism capable of clamping and positioning cloth or loosening the cloth is arranged on a table plate, more than three cloth positioning mechanisms are arranged along the circumferential direction, a rotary driving mechanism capable of driving the table plate to rotate in the circumferential direction is arranged on the rack, and the sewing machine head can move along a certain track on the rack and sew the cloth on the cloth positioning mechanism opposite to the rack. This structure is showing the braking effect that has improved single track cargo airplane. The structure improves the collar sewing quality of the sewing machine and improves the collar sewing efficiency.

Description

Sewing machine

Technical Field

The utility model belongs to the technical field of sewing machine, especially a sewing machine.

Background

In the shirt clothing industry, the shirt includes that shirt accessories such as main part, collarband and cuff splice and constitute, and collarband and cuff are the important accessory of shirt, and collarband and cuff make up the shaping alone through the sewing machine, make up collarband and cuff to the main part again, form a complete shirt after ironing at last and stereotype.

At present, chinese patent nets disclose a sewing apparatus and method for processing neckline/cuffs [ application publication No.: 109594206A, comprising a frame and an operation table installed on the frame, the operation table is provided with a feeding area, an interaction area and a material receiving area, the sewing equipment comprises a material receiving structure, a positioning indication device, a sewing device, an automatic cloth cutting device and a material pushing device, the positioning indication device is used for positioning indication to the feeding device of the cloth, the sewing device is used for sewing the cloth and is positioned between the feeding area and the interaction area, the automatic cloth cutting device is used for cutting the cloth and is positioned between the material receiving area and the interaction area, the material pushing device is used for pushing the cloth to the material receiving device and is positioned above the material receiving area, the material receiving device is used for collecting the cloth and is positioned at the side part of the material receiving area, the machine also comprises an interactive material feeding device with a right feeding mechanism and a left feeding mechanism, the interactive material feeding device is used for driving the right feeding mechanism to press and move the cloth positioned in the feeding area to the sewing equipment and, the left feeding mechanism is driven to interactively feed the cloth on the right feeding mechanism in the interaction area, and the cloth is tightly pressed and transferred to the automatic cloth cutting device to be cut and then continuously moved to the material receiving area.

In the working process of the sewing equipment, firstly, after a worker places cloth on a feeding area, the right feeding mechanism presses the cloth on an operation table board, and then drags the cloth to the sewing equipment, because the sewing equipment is fixed, the right feeding mechanism drives the cloth to move on the operation table board along a certain track, so that the sewing equipment realizes sewing of the cloth, when a collar and cuffs of a shirt are manufactured, two or more layers of cloth are generally overlapped, the friction coefficient between the cloth and the cloth is small, when more than two layers of cloth are moved on the operation table board, the cloth and the cloth are easy to slip or wrinkle or move, so that the sewing machine cannot finish sewing the collar and the cuffs; secondly, after the cloth is sewn, the right feeding mechanism loosens the cloth and moves rightwards to reset, the left feeding mechanism drags the sewn cloth to the automatic cloth cutting device, and in the process of moving backwards through the right feeding mechanism, the sewing equipment does not work, so that the sewing of the cloth does not have continuity, and the sewing efficiency of the sewing equipment is reduced; in addition, the sewing equipment is composed of a plurality of devices, the functions of each device are different, the structure of each device is complex, the size of the whole equipment is large, the parts are various, the structure of the whole sewing equipment is complex, the assembly is troublesome, more manpower and material resources are needed during assembly, the manufacturing cost of the equipment is high, the action matching between the devices is also very complex by adopting an interactive feeding mode, the difficulty of the sewing equipment is further improved, and the later maintenance is also extremely difficult.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided a sewing machine, the utility model aims to solve the technical problem that: how to improve the sewing quality of the neckline and improve the sewing efficiency of the neckline.

The purpose of the utility model can be realized by the following technical proposal:

the sewing machine is characterized by further comprising a table plate, wherein a cloth positioning mechanism capable of clamping and positioning cloth or loosening the cloth is arranged on the table plate, the cloth positioning mechanism is more than three, the more than three cloth positioning mechanisms are arranged along the circumferential direction, a rotary driving mechanism capable of driving the table plate to rotate in the circumferential direction is arranged on the frame, and the sewing machine head can move on the frame along a certain track and sews the cloth on the cloth positioning mechanism opposite to the sewing machine head.

The working principle of the sewing machine is as follows: the cloth adopts manual feeding, a worker stands on one side of the rack and is opposite to one of the cloth positioning mechanisms, when the vacant cloth positioning mechanism rotates to be opposite to the worker, the worker places the cloth on the cloth positioning mechanism, the cloth positioning mechanism clamps and positions the cloth, after the feeding of the cloth positioning mechanism is completed, the rotary driving mechanism drives the bedplate to rotate by a certain angle, the cloth positioning mechanism clamping the cloth rotates to be opposite to the sewing machine head, the sewing machine head moves on the rack along a certain track to perform sewing forming on the cloth, and after the cloth is sewn and formed, the rotary driving mechanism drives the bedplate to rotate by a certain angle, so that the sewn and formed cloth moves out of the sewing machine head. The sewing machine is provided with more than three cloth positioning mechanisms, so that the feeding and sewing of the cloth can be carried out simultaneously, the continuous feeding and sewing are realized, the sewing machine head is ensured to be basically in a continuous sewing state, and the collar or cuff sewing efficiency of the sewing machine is obviously improved; and after the more than two layers of cloth are clamped and positioned by the cloth positioning mechanism, the table plate rotates for feeding, so that the cloth can not move at fixed positions in the transferring process, when the cloth is transferred to the sewing machine head, the sewing process is realized, the cloth is fixed at the fixed positions by the cloth positioning mechanism, the sewing machine head moves along a certain track, the situations of slipping or crumpling or shifting between the cloth and the cloth are avoided, the collar and the cuff can be sewn and formed, and the sewing quality of a product is improved. In addition, this sewing machine mainly comprises aircraft nose, cloth positioning mechanism and actuating mechanism, has reduced the quantity of device, and this rotary type pay-off compares with the interactive pay-off of prior art, and the action is simplified more, and then makes sewing machine's simple structure, small in size, equipment convenient, has reduced sewing machine's manufacturing cost, has also improved the convenience of later stage maintenance simultaneously.

In the sewing machine, the cloth positioning mechanism comprises a lower template fixed on the table plate, an upper template rotatably arranged on the table plate and a driving assembly used for driving the upper template to overturn, and the upper template can be overturned downwards to be matched with the lower template to clamp the cloth.

Through the setting of this structure, drive assembly can drive the cope match-plate pattern along upper and lower upset, when drive assembly drive cope match-plate pattern upwards overturns, cope match-plate pattern and lower bolster are in the open mode, can place the cloth on the lower bolster or will make up fashioned cloth and take off from the lower bolster, after the cloth was placed on the lower bolster, drive assembly drive cope match-plate pattern overturns downwards, make cope match-plate pattern and lower bolster compound die, cope match-plate pattern and lower bolster compress tightly the location with the cloth, the cloth location is firm, be difficult for not hard up.

In the sewing machine, the cloth positioning mechanism further comprises a rotating block rotatably arranged on the table plate, the driving assembly drives the rotating block to turn over, and the upper template is detachably connected with the rotating block.

Through the setting of this structure, the collarband and the cuff size of the shirt of equidimension are distinguished, and a pair cope match-plate pattern and lower bolster can only press from both sides tight location to the mouth or the cuff of one of them type, consequently, when sewing machine was making collarband or cuff, need frequently change cope match-plate pattern and lower bolster, and the dismantlement and the change of cope match-plate pattern are then made things convenient for to this structure.

In foretell sewing machine, the inner of cope match-plate pattern is fixed with along transverse arrangement's mounting bar, be fixed with the picture peg on the mounting bar, cloth positioning mechanism is including rotating the turning block that sets up on the mounting panel, the slot has on the terminal surface of turning block, picture peg and slot plug-in connection, the last fixed surface of turning block has picture peg location cylinder, the piston rod of picture peg location cylinder extends the slot and supports and lean on the picture peg.

Through the arrangement of the structure, when the upper template is not required to be replaced, the piston rod of the inserting plate positioning air cylinder contracts to enable the piston rod to be abutted against the inserting plate, the inserting plate can be pulled out from the slot along the longitudinal movement of the upper template, the inserting plate on the upper template to be installed is inserted into the slot, the piston rod of the inserting plate positioning air cylinder extends outwards to enable the piston rod to be abutted against the inserting plate, the inserting plate is positioned in the slot, the upper template is positioned on the rotating block, the upper template is simply, conveniently and quickly replaced, and the convenience for replacing the upper template is obviously improved.

In the sewing machine, the upper surface of the bedplate is fixed with a pair of shaft seats and a rotating shaft rotatably arranged on the two shaft seats, the rotating block is fixed on the rotating shaft, the driving assembly comprises a first air cylinder, a first hinged seat and a second hinged seat, the first hinged seat is fixed on the upper surface of the rotating block, the second hinged seat is fixed on the upper surface of the bedplate, a piston rod of the first air cylinder is hinged with the first hinged seat, and the tail part of the first air cylinder is hinged on the second hinged seat.

Through the arrangement of the structure, when a piston rod of the first air cylinder contracts, the hinge seat drives the rotating block to rotate upwards, so that the upper template is driven to turn upwards, and the upper template and the lower template are in an open state; when a piston rod of the first air cylinder extends outwards, the rotating block rotates downwards, and then the upper template is driven to overturn downwards, so that the upper template and the lower template are closed to compress and position cloth.

In the sewing machine, the electromagnetic valve used for controlling the on-off of the air path of the first air cylinder is fixed on the table plate, the switch capable of being electrically connected with the electromagnetic valve is fixed on the lower surface of the table plate, the switch is provided with the elastic contact capable of floating up and down, the third air cylinder is fixed below the switch on the rack, the piston rod of the third air cylinder is connected with the power contacts, and the power contacts and the elastic contacts are in one-to-one correspondence and can be abutted against each other.

Through the setting of this structure, the power contact can connect the electricity through the wire, cloth positioning mechanism need open the cope match-plate pattern when material loading and unloading, the piston rod of cylinder three this moment upwards stretches, make the power contact lean on with the elastic contact counterbalance, and push up elastic contact upwards and make elastic contact rebound, realize elastic contact and solenoid valve electricity and be connected, the solenoid valve circular telegram this moment, solenoid valve control gas circuit is opened, the piston rod action of cylinder one drives the cope match-plate pattern and upwards overturns the die sinking, after material loading or unloading are accomplished, the piston rod shrink of cylinder three, the power contact separates with elastic contact, elastic contact moves down and resets, realize elastic contact and solenoid valve disconnection, the solenoid valve outage, the piston rod action of cylinder one drives the cope match-plate pattern and downwards overturns the compound die. Adopt the design of this structure for the platen is in the outage state all the time at the in-process solenoid valve that rotates the pay-off, guarantees cope match-plate pattern and lower bolster and compresses tightly the cloth, and the traditional mode generally adopts the solenoid valve directly to pass through power cord external power supply, and the winding takes place easily at the in-process power cord that rotates the pay-off like this, and this structure has avoided the solenoid valve directly to pass through power cord external power supply, makes the solenoid valve not take place to interfere with the rotation of platen to the on-off control of gas circuit, improves sewing machine safety in utilization.

In the sewing machine, three or more than three mounting plates are arranged on the bedplate along the circumferential direction of the bedplate, the mounting plates correspond to the cloth positioning mechanisms one by one, and the rotating block and the lower template are arranged on the corresponding mounting plates.

Through the arrangement of the structure, the upper template is arranged on the mounting plate through the rotating block, and the lower template is arranged on the mounting plate, so that the whole cloth positioning mechanism is arranged on the mounting plate, and the cloth positioning mechanism is convenient to disassemble, assemble and replace on the platen.

In the sewing machine, the upper surface of the outer end of the mounting plate is provided with the step, the step is provided with the concave part, one end of the lower template is provided with the convex part embedded into the concave part, the lower surface of one end of the lower template is attached to the horizontal plane of the step, the end surface of one end of the lower template is attached to the vertical surface of the step, and one end of the lower template is connected with the step through the fastener.

Through the setting of this structure, during the lower bolster installation, at first the lower surface of lower bolster one end pastes with the horizontal plane of step mutually and leans on, the terminal surface of lower bolster one end pastes with the vertical face of step mutually and leans on, the convex part is embedded into back in the concave part, the cooperation structure of convex part and concave part carries out horizontal spacing to the lower bolster, this structure makes the location that the lower bolster can be accurate quick on the mounting panel, and make lower bolster and cope match-plate pattern can accurate compound die, lower bolster and cope match-plate pattern just overlap together during the compound die, avoid sewing machine head to stab lower bolster or cope match-plate pattern at the in-process steel needle of making up.

In the sewing machine, the fastener sequentially penetrates through the lower template and the step from top to bottom, the upper template is provided with the yielding hole corresponding to the fastener, and when the upper template and the lower template are assembled, the head of the fastener is located in the yielding hole.

Through the setting of this structure, from the top down passes lower bolster and step in proper order during this fastener, dismantles when the cope match-plate pattern and accomplishes the back, and accessible instrument unscrews the fastener, can upwards extract the fastener, and the back is pulled down to the fastener, dismantles the lower bolster from the turning block, and the change of lower bolster is simple and convenient quick to when cope match-plate pattern and lower bolster compound die, the head of fastener is located the pilot hole, can not cause the interference to cope match-plate pattern and lower bolster compound die again when making things convenient for the lower bolster dismouting.

In the sewing machine, a negative pressure adsorption assembly arranged on the rack is arranged below one of the cloth positioning mechanisms, the negative pressure adsorption assembly comprises a base fixed on the rack, an adsorption block arranged on the base in a vertical sliding mode and a second air cylinder fixed on the base and used for driving the adsorption block to move vertically, an air cavity is formed in the upper surface of the adsorption block, an air hole is formed in the bottom surface of the air cavity, and a plurality of through holes are formed in the position, corresponding to the adsorption block, of the lower template.

Through the setting of this structure, when cope match-plate pattern and lower bolster are in the open mode, can place the cloth at the upper surface of lower bolster, the piece rebound makes the upper surface of inhaling the piece hug closely with the lower surface of lower bolster this moment is inhaled in the drive of two cylinders, a plurality of through-hole all is linked together with the air cavity, air vent connection air exhaust device for form the negative pressure in the air cavity, and then cloth and lower bolster closely laminate, the cloth takes place to shift when avoiding cope match-plate pattern and lower bolster compound die, improve the accuracy of cloth location.

In the sewing machine, the rotary driving mechanism comprises a rotary table fixed on the frame, the table plate is connected with the rotary table, and the table plate rotates synchronously with the rotary table. Through the arrangement of the structure, the turntable drives the bedplate to rotate, and then the cloth positioning mechanism on the bedplate is driven to transfer the cloth.

In the sewing machine, the sewing machine further comprises a first guide rail arranged on one side of the rack, the first guide rail is arranged along the transverse direction, a sliding seat is arranged on the first guide rail in a sliding manner, a first screw rod nut mechanism for driving the sliding seat to slide along the transverse direction is arranged on the rack, and a first motor for driving the first screw rod nut mechanism to work is arranged on the rack; the sewing machine head is fixed on the sliding block, a second screw rod nut mechanism used for driving the sewing machine head to slide longitudinally is arranged on the sliding seat, and a second motor used for driving the second screw rod nut mechanism to work is arranged on the sliding seat.

Through the arrangement of the structure, the first motor drives the screw rod in the first screw rod nut mechanism to rotate, so that the sliding seat is driven to move along the transverse direction, the sliding seat drives the sewing machine head to move along the transverse direction, the second motor drives the screw rod in the second screw rod nut mechanism to rotate, so that the sewing machine head is driven to move along the longitudinal direction, and the first motor and the second motor work simultaneously to enable the sewing machine head to move along a certain track, so that the sewing of cloth is realized.

Compared with the prior art, the utility model discloses a sewing machine has following advantage:

1. the sewing machine has more than three cloth positioning mechanisms, so that the feeding and sewing of the cloth can be carried out simultaneously, the continuous feeding and sewing are realized, and the efficiency of sewing the collar or the cuff by the sewing machine is obviously improved.

2. This structure is after the cloth of more than two-layer passes through cloth positioning mechanism and presss from both sides tight location, rotate the pay-off through the platen, make the cloth all can not take place the position removal at the in-process that shifts, when the cloth shifts to sewing machine head department, the in-process of making up, the cloth is fixed in fixed position after pressing from both sides tight location through cloth positioning mechanism, sewing machine head moves along certain orbit, just so avoided taking place between cloth and the cloth the condition of skidding or crumpling or shifting, make collar and cuff can make up the shaping, improve the quality of making up of product.

3. This sewing machine mainly comprises aircraft nose, cloth positioning mechanism and actuating mechanism, has reduced the quantity of device, and then has reduced sewing machine's manufacturing cost, and this rotary type pay-off compares with the interactive pay-off of prior art, and the action is simplified more, and then makes sewing machine's simple structure, small in size, equipment facility, has also improved the convenience of later stage maintenance simultaneously.

Drawings

Fig. 1 is one of the schematic perspective views of the present invention.

Fig. 2 is a plan view of the present invention.

Fig. 3 is a second schematic perspective view of the present invention.

Fig. 4 is a schematic perspective view of the platen and the cloth positioning mechanism of the present invention.

Fig. 5 is an exploded schematic view of the cloth positioning mechanism of the present invention.

Fig. 6 is a schematic sectional view of the cloth positioning mechanism of the present invention.

Fig. 7 is an enlarged schematic view of a portion a in fig. 6.

Fig. 8 is an exploded schematic view of the lower template and the mounting plate of the present invention.

Fig. 9 is a third schematic perspective view of the present invention.

Fig. 10 is an enlarged schematic view of a portion a in fig. 9.

Fig. 11 is a fourth schematic view of the three-dimensional structure of the present invention.

Fig. 12 is a fifth schematic perspective view of the present invention.

Fig. 13 is an enlarged schematic view of a portion a in fig. 12.

Fig. 14 is a schematic structural view of the upper and lower templates of the present invention.

In the figure, 1, a frame; 2. a sewing machine head; 3. a platen; 4. a cloth positioning mechanism; 40. a rotating shaft; 41. mounting a plate; 41a, a step; 41a1, recess; 42. a lower template; 42a, a convex portion; 42b, a through hole; 43. mounting a template; 43a, a relief hole; 44. a drive assembly; 441. a first cylinder; 442. a first hinge seat; 443. a second hinge seat; 45. mounting a bar; 46. inserting plates; 461. a counter bore; 47. rotating the block; 48. a plug board positioning cylinder; 49. a shaft seat; 5. a rotation driving mechanism; 51. a rotating table; 6. a slot; 7. a fastener; 8. a negative pressure adsorption component; 81. a base; 82. sucking blocks; 82a, an air cavity; 82b, air holes; 83. a second air cylinder; 9. a first guide rail; 10. a sliding seat; 11. a first screw rod and nut mechanism; 12. a first motor; 13. a second guide rail; 14. a slider; 15. a screw rod nut mechanism II; 16. and a second motor.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example 1

As shown in fig. 1 and 11, the sewing machine comprises a frame 1 and a sewing machine head 2 arranged on one side of the frame 1, and further comprises a first guide rail 9 arranged on one side of the frame 1, wherein the first guide rail 9 is arranged along the transverse direction, a sliding seat 10 is arranged on the first guide rail 9 in a sliding manner, a first screw-nut mechanism 11 for driving the sliding seat 10 to slide along the transverse direction is arranged on the frame 1, and a first motor 12 for driving the first screw-nut mechanism 11 to work is arranged on the frame 1; the sliding seat 10 is provided with a second guide rail 13, the second guide rail 13 is arranged along the longitudinal direction, the second guide rail 13 is provided with a sliding block 14 in a sliding manner, the sewing machine head 2 is fixed on the sliding block 14, the sliding seat 10 is provided with a second screw rod nut mechanism 15 for driving the sewing machine head 2 to slide along the longitudinal direction, the sliding seat 10 is provided with a second motor 16 for driving the second screw rod nut mechanism 15 to work, the first motor 12 drives a screw rod in the first screw rod nut mechanism 11 to rotate so as to drive the sliding seat 10 to move along the transverse direction, the sliding seat 10 drives the sewing machine head 2 to move along the transverse direction, the second motor 16 drives a screw rod in the second screw rod nut mechanism 15 to rotate so as to drive the sewing machine head 2 to move along the longitudinal direction, the first motor 15 and the second motor 16 work simultaneously so that the sewing machine head 2 can move along a certain track, both the first motor 15 and the second motor 16, the output of the first motor 15 and the output of the second motor 16 are converted into linear motion or curvilinear motion of the sewing machine head 2, so that the sewing machine head 2 can move along a certain track according to the shape of the cloth, and sewing of the cloth is achieved.

As shown in fig. 1, 2 and 3, the sewing machine further comprises a table plate 3, a cloth positioning mechanism 4 capable of clamping and positioning cloth or loosening the cloth is arranged on the table plate 3, the cloth positioning mechanism 4 is more than three, the more than three cloth positioning mechanisms 4 are arranged along the circumferential direction, a rotary driving mechanism 5 capable of driving the table plate 3 to rotate circumferentially is arranged on the frame 1, the rotary driving mechanism 5 comprises a rotary table 51 fixed on the frame 1, the table plate 3 is connected with the rotary table 51, the table plate 3 rotates synchronously along with the rotary table 51, in the embodiment, the cloth positioning mechanisms 4 are four, the four cloth positioning mechanisms 4 are distributed in a cross shape, the sewing machine head 2 is positioned at one of the cloth positioning mechanisms 4, when in use, a worker stands at one side of the frame 1 and is opposite to the second cloth positioning mechanism 4, an automatic cutting device is arranged at the outer side of, this automatic cutting device is relative with third cloth positioning mechanism 4, sets up extracting mechanism in the outside of frame 1, and this extracting mechanism is relative with fourth cloth positioning mechanism 4 to automatic cutting device is located workman's offside, and extracting mechanism is located sewing machine head 2's offside. The workman places the cloth on rather than a relative cloth positioning mechanism 4, rotary driving mechanism 5 drives platen 3 and rotates and make this cloth positioning mechanism 4 shift to sewing machine head 2 side, sewing machine head 2 makes up the shaping to the cloth along certain orbit motion, after the shaping is made up to the cloth, rotary driving mechanism 5 drives platen 3 and rotates and make this cloth positioning mechanism 4 shift to automatic cutting device side, automatic cutting device cuts out the fashioned cloth of making up, after finishing cutting out, rotary driving mechanism 5 drives platen 3 and rotates and make this cloth positioning mechanism 4 shift to the feeding agencies side, feeding agencies takes off the cloth of processing completion from cloth positioning mechanism 4.

As shown in fig. 4 and 5, the cloth positioning mechanism 4 includes a mounting plate 41 fixed on the platen 3, a lower template 42 fixed on the mounting plate 41, an upper template 43 rotatably disposed on the mounting plate 41, and a driving assembly 44 for driving the upper template 43 to turn up and down, the mounting plate 41 may also be integrally formed with the platen 3, the cloth positioning mechanism 4 includes a rotating block 47 rotatably disposed on the mounting plate 41, a pair of shaft seats 49 and a rotating shaft 40 rotatably disposed on the two shaft seats 49 are fixed on the upper surface of the mounting plate 41, the rotating block 47 is fixed on the rotating shaft 40, the driving assembly 44 includes a first cylinder 441, a first hinge seat 442 and a second hinge seat 443, the first hinge seat 442 is fixed on the upper surface of the rotating block 47, the second hinge seat 443 is fixed on the upper surface of the platen 3, a piston rod of the first cylinder 441 is hinged to the first hinge seat 442, a tail portion of the first cylinder 441 is, the upper die plate 43 is fixedly connected with a rotating block 47. When a piston rod of the first air cylinder 441 contracts, the rotating block 47 is driven to rotate upwards through the first hinge seat 442, and then the upper template 43 is driven to turn upwards, so that the upper template 43 and the lower template 42 are in an open state, and at the moment, cloth can be manually placed on the lower template 42 or sewn and formed cloth can be taken down from the lower template 42; when the piston rod of the first cylinder 441 extends outwards, the rotating block 47 rotates downwards, so that the upper template 43 is driven to turn downwards, and the upper template 43 and the lower template 42 are matched to press and position the cloth. In the working process of the sewing machine, the four steps of feeding, sewing, cutting and discharging can be carried out simultaneously, and the feeding efficiency of the cloth is greatly improved by adopting a turntable type rotary feeding mode, so that the sewing efficiency of the sewing machine is obviously improved.

As shown in fig. 4 to 7, a mounting bar 45 arranged in the transverse direction is fixed on the upper surface of the inner end of the upper die plate 43, an insert plate 46 is fixed on the mounting bar 45, a slot 6 is arranged on one end surface of a rotating block 47, the insert plate 46 is in inserted connection with the slot 6, an insert plate positioning cylinder 48 is fixed on the upper surface of the rotating block 47, a piston rod of the insert plate positioning cylinder 48 extends into the slot 6 and abuts against the insert plate 46, when the upper die plate 43 needs to be replaced, the piston rod of the insert plate positioning cylinder 48 contracts to enable the piston rod not to abut against the insert plate 46, at the moment, the upper die plate 43 can be moved in the longitudinal direction to enable the insert plate 46 to be pulled out from the slot 6, the insert plate 46 on the upper die plate 43 to be installed is inserted into the slot 6, the piston rod of the insert plate positioning cylinder 48 extends outwards to enable the piston rod to abut against the insert plate 46, the insert plate 46, the convenience of replacement of the upper die plate 43 is remarkably improved. The insert plate 46 is provided with a counter bore 461, and the lower end of the piston rod of the insert plate positioning cylinder 48 abuts against the hole wall of the counter bore 461, so that the positioning effect of the insert plate 46 in the slot 6 is further improved.

As shown in fig. 8, the upper surface of the outer end of the mounting plate 41 is provided with a step 41a, the step 41a is provided with a recess 41a1, one end of the lower template 42 is provided with a convex portion 42a embedded into the recess 41a1, the lower surface of one end of the lower template 42 is abutted against the horizontal surface of the step 41a, the end surface of one end of the lower template 42 is abutted against the vertical surface of the step 41a, one end of the lower template 42 is connected with the step 41a through a fastener 7, the fastener 7 sequentially penetrates through the lower template 42 and the step from top to bottom, the upper template 43 is provided with an abdicating hole 43a corresponding to the fastener 7, and when the upper template 43 and the lower template 42 are closed, the head of the fastener 7 is positioned in the abdicating hole 43. When a pair of upper template 43 and lower template 42 are replaced, firstly, the upper template 43 is detached, then the fastener 7 is unscrewed through a tool, the fastener 7 can be upwards pulled out, after the fastener 7 is detached, the lower template 42 is detached from the rotating block 47, the lower template 42 is simply, conveniently and quickly replaced, when the upper template 43 and the lower template 42 are assembled, the head of the fastener 7 is positioned in the abdicating hole 43a, and the upper template 43 and the lower template 42 are not interfered when the lower template 43 is conveniently disassembled and assembled.

In addition, the plug-in structure of cope match-plate pattern 43 and turning block 47 can realize the accurate location when cope match-plate pattern 43 installs, and the accurate location of lower bolster 42 on mounting panel 41 is realized equally to the mounting structure of lower bolster 42, just so can align completely when making the compound die of lower bolster 42 and cope match-plate pattern 43, avoids the sewing machine head to stab lower bolster 42 or cope match-plate pattern 43 at the in-process steel needle of making up.

As shown in fig. 4, 12 and 13, each mounting plate 41 is fixed with a solenoid valve 20 for controlling the on-off of an air path of a cylinder 441, a switch 17 electrically connected with the solenoid valve 20 is fixed on the lower surface of the mounting plate 41, the switch 17 is provided with an elastic contact 171 capable of floating up and down, a cylinder 18 is fixed below the switch 17 on the rack 1, a piston rod of the cylinder 18 is connected with a power contact 19, and the power contact 19 and the elastic contact 171 are in one-to-one correspondence and can abut against each other. The power contact 19 can be connected with electricity through a wire, the upper die plate 43 needs to be opened when the cloth positioning mechanism 4 is used for loading and unloading, at the moment, a piston rod of the air cylinder III 18 extends upwards, the power contact 19 abuts against the elastic contact 171, the elastic contact 171 is pushed upwards to enable the elastic contact 171 to move upwards, the elastic contact 171 is electrically connected with the electromagnetic valve 20, the electromagnetic valve 20 is electrified, the electromagnetic valve 20 controls an air path to be opened, the piston rod of the air cylinder I441 moves and drives the upper die plate 43 to turn upwards for die opening, after loading or unloading is completed, the piston rod of the air cylinder III 18 contracts, the power contact 19 is separated from the elastic contact 171, the elastic contact 171 moves downwards for resetting, the elastic contact 171 is disconnected from the electromagnetic valve 20, the electromagnetic valve 20 is powered off, and the piston rod of the air cylinder I441 moves and.

As shown in fig. 9 and 10, a negative pressure adsorption assembly 8 disposed on the frame 1 is disposed below one of the cloth positioning mechanisms 4, the negative pressure adsorption assembly 8 includes a base 81 fixed on the frame 1, an adsorption block 82 vertically slidably disposed on the base 81, and a second cylinder 83 fixed on the base 81 and used for driving the adsorption block 82 to vertically move, an air cavity 82a is disposed on an upper surface of the adsorption block 82, an air hole 82b is disposed on a bottom surface of the air cavity 82a, and a plurality of through holes 42c are disposed at a position of the lower mold plate 42 corresponding to the adsorption block 82. When cope match-plate pattern 43 and lower bolster 42 are in the open mode, can place the cloth at the upper surface of lower bolster 42, the two 83 drive of cylinder this moment inhale piece 82 rebound and make the upper surface of inhaling piece 82 hug closely with the lower surface of lower bolster 42, a plurality of through-hole 42b all is linked together with air cavity 82a, air exhaust device is connected to air cavity 82b, make the interior negative pressure that forms of air cavity 82a, and then the cloth closely laminates with lower bolster 42, the cloth takes place to shift when avoiding cope match-plate pattern 43 and lower bolster 42 compound die, the accuracy of cloth location improves.

The sewing machine is not only used for sewing neckline and cuff, but also can be used for sewing pocket cover and other clothes accessories similar to the neckline or cuff.

Example 2

This embodiment is substantially the same as embodiment 1 described above, except that: the cloth positioning mechanism 4 comprises a mounting plate, an upper template and a lower template, the lower template is fixed on the mounting plate, the upper template is driven by a cylinder to vertically lift, and then the opening or closing of the upper template and the lower template is realized.

Example 3

This embodiment is substantially the same as embodiment 1 described above, except that: the rotary driving mechanism 5 is characterized in that the bedplate 3 is arranged on the frame in a rotating mode through a main shaft, an output gear is sleeved on the main shaft, and a motor drives the output gear to rotate through a reduction gear set, so that the main shaft is driven to rotate, and the rotation of the bedplate 3 is realized.

Example 4

As shown in fig. 14, the present embodiment is basically the same as the above embodiment 1, except that: this lower bolster 42 includes left plate body 421 and right plate body 422, left plate body 421 and right plate body 422 can keep away from each other and be close to, realize the length adjustment of template, make lower bolster 42 can adjust its self length according to the length of cloth, it is fixed to be applicable to compressing tightly of different length cloth, avoid the dismantlement and the change of lower bolster 42 on the machine, only need to change cope match-plate pattern 43 can, and the change of cope match-plate pattern 43 is simple and convenient quick, make whole platform machine can be applicable to the making up of the cloth of various different length fast.

Example 5

This embodiment is substantially the same as embodiment 1 described above, except that: the upper die plate 43 is connected with the turning block 47 by a fastener.

Example 6

This embodiment is substantially the same as embodiment 1 described above, except that: the template 43 and the rotating block 47 are positioned by magnet adsorption.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims (12)

1. The sewing machine comprises a rack (1) and a sewing machine head (2) arranged on one side of the rack (1), and is characterized by further comprising a table plate (3), wherein a cloth positioning mechanism (4) capable of clamping and positioning cloth or loosening the cloth is arranged on the table plate (3), the cloth positioning mechanism (4) is three or more, the three or more cloth positioning mechanisms (4) are arranged along the circumferential direction of the table plate (3), a rotary driving mechanism (5) capable of driving the table plate (3) to rotate in the circumferential direction is arranged on the rack (1), and the sewing machine head (2) can move on the rack (1) along a certain track and sew the cloth on the cloth positioning mechanism (4) opposite to the rack (1).

2. The sewing machine according to claim 1, characterized in that the cloth positioning mechanism (4) comprises a lower template (42) fixed on the bedplate (3), an upper template (43) rotatably arranged on the bedplate (3) and a driving assembly (44) for driving the upper template (43) to overturn, wherein the upper template (43) can overturn downwards to be matched with the lower template (42) to clamp the cloth.

3. The sewing machine according to claim 2, characterized in that the cloth positioning mechanism (4) further comprises a rotating block (47) rotatably arranged on the table (3), the driving assembly (44) drives the rotating block (47) to turn, and the upper template (43) is detachably connected with the rotating block (47).

4. The sewing machine according to claim 3, characterized in that the inner end of the upper template (43) is fixed with a mounting bar (45) arranged along the transverse direction, the mounting bar (45) is fixed with an inserting plate (46), a slot (6) is arranged on one end face of the rotating block (47), the inserting plate (46) is in inserted connection with the slot (6), an inserting plate positioning cylinder (48) is fixed on the upper surface of the rotating block (47), and a piston rod of the inserting plate positioning cylinder (48) extends into the slot (6) and abuts against the inserting plate (46).

5. A sewing machine according to claim 3, characterized in that a pair of axle seats (49) and a rotating shaft (40) rotatably arranged on the two axle seats (49) are fixed on the upper surface of the table plate (3), the rotating block (47) is fixed on the rotating shaft (40), the driving assembly (44) comprises a first air cylinder (441), a first hinge seat (442) and a second hinge seat (443), the first hinge seat (442) is fixed on the upper surface of the rotating block (47), the second hinge seat (443) is fixed on the upper surface of the table plate (3), the piston rod of the first air cylinder (441) is hinged with the first hinge seat (442), and the tail of the first air cylinder (441) is hinged with the second hinge seat (443).

6. The sewing machine according to claim 5, characterized in that the platen (3) is fixed with an electromagnetic valve (20) for controlling the on-off of the air path of the first cylinder (441), the lower surface of the platen (3) is fixed with a switch (17) capable of being electrically connected with the electromagnetic valve (20), the switch (17) is provided with an elastic contact (171) capable of floating up and down, the frame (1) is fixed with a third cylinder (18) below the switch (17), the piston rod of the third cylinder (18) is connected with a power contact (19), and the power contacts (19) and the elastic contact (171) are in one-to-one correspondence and can be abutted against each other.

7. A sewing machine according to claim 3, wherein three or more mounting plates (41) are provided on the table (3) along the circumferential direction thereof, the mounting plates (41) correspond to the cloth positioning mechanism (4) one to one, and the rotary block (47) and the lower plate (42) are provided on the respective mounting plates (41).

8. The sewing machine according to claim 7, characterized in that the upper surface of the outer end of the mounting plate (41) is provided with a step (41a), the step (41a) is provided with a concave part (41a1), one end of the lower template (42) is provided with a convex part (42a) embedded into the concave part (41a1), the lower surface of one end of the lower template (42) is attached to the horizontal surface of the step (41a), the end surface of one end of the lower template (42) is attached to the vertical surface of the step (41a), and one end of the lower template (42) is connected to the step (41a) through a fastener (7).

9. The sewing machine according to claim 8, wherein the fastener (7) sequentially penetrates through the lower template (42) and the step from top to bottom, the upper template (43) is provided with a relief hole (43a) corresponding to the fastener (7), and when the upper template (43) and the lower template (42) are closed, the head of the fastener (7) is positioned in the relief hole (43 a).

10. The sewing machine according to claim 2, wherein a negative pressure adsorption assembly (8) arranged on the frame (1) is arranged below one of the cloth positioning mechanisms (4), the negative pressure adsorption assembly (8) comprises a base (81) fixed on the frame (1), an adsorption block (82) arranged on the base (81) in a vertical sliding manner, and a second air cylinder (83) fixed on the base (81) and used for driving the adsorption block (82) to move vertically, an air cavity (82a) is formed in the upper surface of the adsorption block (82), an air hole (82b) is formed in the bottom surface of the air cavity (82a), and a plurality of through holes (42b) are formed in the lower template (42) corresponding to the adsorption block (82).

11. A machine according to claim 1, wherein said rotary drive means (5) comprise a rotary table (51) fixed to the frame (1), said table (3) being connected to the rotary table (51), said table (3) rotating synchronously with the rotary table (51).

12. The sewing machine according to claim 1, characterized in that the sewing machine further comprises a first guide rail (9) arranged on one side of the frame (1), the first guide rail (9) is arranged along the transverse direction, a sliding seat (10) is arranged on the first guide rail (9) in a sliding manner, a first screw-nut mechanism (11) for driving the sliding seat (10) to slide along the transverse direction is arranged on the frame (1), and a first motor (12) for driving the first screw-nut mechanism (11) to work is arranged on the frame (1); the sewing machine head is characterized in that a second guide rail (13) is arranged on the sliding seat (10), the second guide rail (13) is longitudinally arranged, a sliding block (14) is arranged on the second guide rail (13) in a sliding mode, the sewing machine head (2) is fixed on the sliding block (14), a second screw nut mechanism (15) used for driving the sewing machine head (2) to longitudinally slide is arranged on the sliding seat (10), and a second motor (16) used for driving the second screw nut mechanism (15) to work is arranged on the sliding seat (10).

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