CN110835810A - Embroidery thread guiding and embroidery needle protecting device for independent presser foot embroidery machine head - Google Patents
Embroidery thread guiding and embroidery needle protecting device for independent presser foot embroidery machine head Download PDFInfo
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- CN110835810A CN110835810A CN201911279622.1A CN201911279622A CN110835810A CN 110835810 A CN110835810 A CN 110835810A CN 201911279622 A CN201911279622 A CN 201911279622A CN 110835810 A CN110835810 A CN 110835810A
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- 230000007246 mechanism Effects 0.000 claims abstract description 61
- 239000004744 fabric Substances 0.000 claims abstract description 58
- 230000000694 effects Effects 0.000 abstract description 11
- 230000008878 coupling Effects 0.000 description 16
- 238000010168 coupling process Methods 0.000 description 16
- 238000005859 coupling reaction Methods 0.000 description 16
- 238000010586 diagram Methods 0.000 description 7
- 239000003086 colorant Substances 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000009956 embroidering Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C11/00—Devices for guiding, feeding, handling, or treating the threads in embroidering machines; Machine needles; Operating or control mechanisms therefor
- D05C11/02—Machine needles
- D05C11/04—Arrangements for fastening or inserting in bars or carriers
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C13/00—Auxiliary devices incorporated in embroidering machines, not otherwise provided for; Ancillary apparatus for use with embroidering machines
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- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C9/00—Appliances for holding or feeding the base fabric in embroidering machines
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Abstract
The invention discloses an embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head, which comprises a guiding protection plate and at least one connecting mechanism, wherein the connecting mechanism is fixedly connected with the guiding protection plate, the connecting mechanism is directly or indirectly connected with a needle bar frame, the guiding protection plate is positioned above the highest point of the movement of a presser foot cloth pressing end and below the lowest point of the movement of the bottom end of the needle bar during embroidery, and a needle passing hole is formed in the position of the guiding protection plate, which is positioned under each embroidery needle. The embroidery needle tensioning device has the advantages that the technical problem that the embroidery needle is obliquely tensioned by the embroidery thread which is in a shutdown state is solved, so that the acting force applied to the embroidery needle in the working state or the shutdown state is in the vertical direction, and the protection effects of preventing the embroidery needle from deforming and preventing the embroidery thread from being napped and broken are achieved.
Description
Technical Field
The invention relates to an embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head, which is mainly applied to the technical field of embroidery machines.
Background
In the prior art of the embroidery machine, a pressure foot of a part of the embroidery machine is linked with a needle rod, the pressure foot is sleeved on the needle rod through a pressure foot spring, namely, the operation of the needle rod drives the pressure foot to operate, and the non-independent pressure foot has the following problems: the main shaft of the embroidery machine has relatively large load, so that the transmission accuracy of the main shaft is influenced; the movement of the presser foot is relatively large, which results in relatively large vibrations and noise of the machine.
The presser foot of part embroidery machine is independent presser foot, and the spatial position and the drive of presser foot and needle bar are independent mutually promptly, can solve above-mentioned defect: the needle bar needs to be matched with the rotating shuttle to perform embroidery, so that high precision is needed, the presser foot only needs to press the cloth when the machine needle penetrates into and leaves the cloth, the precision requirement is relatively low, and the precision of the needle bar in high-speed operation can be improved after the main shaft is driven by the presser foot; the function of the presser foot is that the presser foot presses cloth, theoretically, the smaller the movement is, the better the presser foot is, because the smaller the movement is, the smaller the inertia generated by the presser foot is, thereby improving the operation speed of the needle bar and realizing the ultra-high speed needle bar embroidery, the technical purpose can be realized by the independent drive of the presser foot, and the movement of the presser foot can be set below 10mm through the design of the independent presser foot.
Referring to fig. 1, the structure of the presser foot a is currently in the prior art, most of which is provided with a single hole a for allowing an embroidery thread to pass through, and the presser foot a of this structure is suitable for a single color embroidery thread (only one embroidery thread is embroidered), but is defective in handling a multi-color embroidery thread (multiple embroidery threads are embroidered): as shown in figure 1, when three embroidery threads with different colors, namely an embroidery thread B-1, an embroidery thread B-2 and an embroidery thread B-3, are used for embroidering, the three embroidery threads all pass through a single hole a of a presser foot A, so that the phenomenon that the different embroidery threads are mutually wound can occur, the phenomenon can cause that the embroidery threads with various colors are mutually wound and embroidered on the cloth, and the effect of separately and alternately embroidering various colors can not be realized. When changing color (changing embroidery thread), as shown in fig. 1, the embroidery thread B-1 and the embroidery needle C-1 are in a working state, the embroidery thread B-2, the embroidery needle C-2, the embroidery thread B-3, and the embroidery needle C-3 are in a shutdown state, at this time, the embroidery thread B-1 is in a vertical tension state, and the embroidery thread B-2 and the embroidery thread B-3 are in an oblique tension state, and in this state, the embroidery thread B-2 and the embroidery thread B-3 generate oblique tension acting force on the embroidery needle C-2 and the embroidery needle C-3, which easily causes bending deformation of the embroidery needle, and at the same time, the embroidery thread is also easily broken and napped.
Disclosure of Invention
The invention aims to provide an embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head, which solves the technical problem that the embroidery needle is obliquely tensioned by the embroidery thread in the shutdown state, so that the acting force applied to the embroidery needle in the working state or the shutdown state is in the vertical direction, and the protection effect of preventing the embroidery needle from deforming and the embroidery thread from being napped and broken is achieved.
The invention is realized by the following technical scheme.
The embroidery thread guiding and embroidery needle protecting device for the machine head of the independent presser foot embroidery machine comprises a guiding protecting plate and at least one connecting mechanism, wherein the connecting mechanism is fixedly connected with the guiding protecting plate, the connecting mechanism is directly or indirectly connected with a needle bar frame, the guiding protecting plate is positioned above the highest point of the movement of the presser foot cloth pressing end and below the lowest point of the movement of the bottom end of the needle bar during embroidery, and needle passing holes are formed in the positions, under each embroidery needle, of the guiding protecting plate.
By arranging the guide protection plate and the needle passing hole, firstly, the stop embroidery thread has a limiting effect, the part of the stop embroidery thread between the embroidery needle and the guide protection plate is in a vertical state, and the part of the stop embroidery thread between the guide protection plate and the cloth is in an oblique state, namely the stop embroidery thread acts in the direction of the tensioning force of the stop embroidery needle vertically downwards; secondly, the position of the guide protection plate does not interfere with the needle bar and the presser foot, and the embroidery interference is avoided.
Furthermore, the connecting mechanism is provided with a lifting structure, and the guide protection plate can be driven to be lifted upwards when the guide protection plate is subjected to upward acting force.
After embroidery is finished, the presser foot needs to be lifted, the presser foot is pressed down after cloth is replaced, and the guide protection plate can be lifted when the presser foot is lifted by the lifting structure, so that cloth replacement is not influenced.
Further, the connecting mechanism comprises a first connecting piece and a second connecting piece, the first connecting piece is connected with the second connecting piece in a sliding mode or in a sliding mode, the sliding direction is the vertical direction, the first connecting piece is connected with the needle bar frame, and the second connecting piece is connected with the guide protection plate.
The first connecting piece and the second connecting piece are connected in a sliding mode, and the function of guiding the protection plate to ascend and descend is achieved in a telescopic mode of the connecting mechanism.
Furthermore, the connecting mechanism further comprises a connecting part which is a connecting seat, the connecting seat is fixed on the needle bar frame, and the first connecting part is fixed on the connecting seat.
The connecting seat is fixed with the needle bar frame, namely, the connecting mechanism is directly connected with the needle bar frame.
Furthermore, the connecting mechanism further comprises a connecting part which is a connecting seat, the connecting seat is fixed on the lower threading wire which is fixed on the needle bar frame, the lower threading wire is provided with a plurality of through holes for allowing embroidery threads to pass through, and the first connecting part is fixed on the connecting seat.
The connecting seat is connected with the lower thread, namely, the connecting mechanism is indirectly connected with the needle bar frame, and the through hole arranged on the lower thread can allow the embroidery thread to pass through, so that the embroidery thread is prevented from floating, and the stability of the embroidery thread can be improved.
Further, the connecting mechanism is provided with a return spring for returning the guide protection plate after being lifted.
The restoring spring is arranged as a restoring part of the lifting rear connecting mechanism, so that the connecting mechanism and the guide protection plate can be rapidly restored on one hand, and the structure is simple on the other hand, and the installation space of the embroidery machine can be saved.
Furthermore, a lifting cylinder is installed on the needle bar frame, and a piston rod of the lifting cylinder is connected with the guide protection plate.
The lifting cylinder is used as a power component for lifting and pressing the connecting mechanism, so that the operation of the presser foot and the cloth changing efficiency can be facilitated.
Further, coupling mechanism includes connecting piece, external member, the top and the bottom of connecting piece are connected respectively the external member with the guide guard plate, the external member slip cover is established the needle bar.
The sleeve is sleeved on the needle rod in a sliding manner, namely, the connecting mechanism is indirectly connected with the needle rod frame.
Further, the needle bar cover is equipped with the recovery spring, the top of recovering the spring is connected the lower dead center of needle bar, the bottom of recovering the spring is connected the external member, be used for the guide guard plate promotes the back and resets.
Furthermore, a lifting cylinder is installed on the needle bar frame, and a piston rod of the lifting cylinder is connected to the guide protection plate or the connecting mechanism.
Further, the cloth pressing end of the presser foot is of an open structure.
Compared with a single hole, the opening structure can avoid various embroidery threads from being wound, on one hand, the situation that the embroidery threads are broken and napped can be avoided, and on the other hand, the quality of embroidery is improved.
The invention has the beneficial effects that:
set up mounting panel and cross the pinhole, can make the embroidery line of shut down be vertical direction rather than the slant to the stretch-draw effort of embroidery needle, not only avoid appearing the condition of embroidery needle bending deformation, also can avoid the condition of embroidery line snapping, and the position setting of guide guard plate also can not lead to the fact the interference to needle bar and presser foot, coupling mechanism's lifting function and reset function are convenient for the presser foot to lift and the change of cloth, whole device structural design is ingenious, the result of use preferred, not only played the embroidery needle, the guard action of cloth, also can improve the quality of embroidery.
Drawings
FIG. 1 is a schematic view of a needle, presser foot, and thread of the prior art;
FIG. 2 is a schematic structural diagram of embodiment 1;
FIG. 3 is a schematic view of the structure of the embroidery needle, presser foot and thread according to embodiment 1;
FIG. 4 is a schematic structural diagram of embodiment 2;
FIG. 5 is a schematic structural diagram of embodiment 3;
FIG. 6 is a schematic structural diagram of embodiment 4;
FIG. 7 is a schematic structural diagram of embodiment 5;
FIG. 8 is a schematic structural diagram of embodiment 6;
fig. 9 is a schematic structural diagram of embodiment 7.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples.
Example 1:
referring to fig. 2-3, the embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head comprises a guiding protection plate 1, two connecting mechanisms and a lifting cylinder 31, wherein the guiding protection plate 1 is horizontally arranged, the direction of the guiding protection plate 1 is arranged along the arrangement direction of needle bars 102, the guiding protection plate 1 is provided with a plurality of needle passing holes 1-A, the number of the needle passing holes 1-A is matched with that of the needle bars 102, and the positions of the needle passing holes 1-A are positioned right below an embroidery needle 101 of the needle bars 102. During embroidery, the horizontal height of the guide protection plate 1 is located above the highest point of the movement of the cloth pressing end 104-A of the presser foot 104 and below the lowest point of the movement of the bottom end of the needle bar 102, i.e. during embroidery, the bottom surface of the guide protection plate 1 does not contact with the cloth pressing end 104-A of the presser foot 104, and the top surface of the guide protection plate 1 does not contact with the bottom end of the needle bar 102, while the embroidery needle 101 passes through the guide protection plate 1 from the needle passing hole 1-A, and sequentially passes through the cloth pressing end 104-A of the presser foot 104, the cloth and the needle hole 105 downwards, and the cloth pressing end 104-A of the presser foot 104 is of an open structure.
Two coupling mechanism sets up guide protection plate 1's both ends department about, it includes first connecting piece 21, second connecting piece 22, first connecting piece 21 with the equal vertical setting of second connecting piece 22, first connecting piece 21 slip cover is established second connecting piece 22 is fixed respectively at both ends about the bottom of needle bar frame 103 and is provided with connecting seat 23, two first connecting piece 21's top is fixed connection respectively two connecting seat 23, promptly the mechanism with needle bar frame 103's connected mode is lug connection, two second connecting piece 22's bottom is fixed connection respectively at both ends about guide protection plate 1. The second connecting member 22 can slide upwards along the first connecting member 21, i.e. a lifting structure of the connecting mechanism is formed. The lifting cylinder 31 is installed on the needle bar frame 103, a piston rod 32 of the lifting cylinder 31 is vertically arranged, the top end of the lifting cylinder 31 is assembled at the output end of the lifting cylinder 31, and the bottom end of the lifting cylinder is connected with the guide protection plate 1. For the structural relationship between the first connecting member 21 and the second connecting member 22, the second connecting member 22 can be slidably sleeved on the first connecting member 21, and the effect is similar to the effect provided in the present embodiment, compared with this structural arrangement, in the present embodiment, the aperture of the first connecting member 21 is larger than that of the second connecting member 22, and the first connecting member 21 with a large aperture is used as a component directly connected with the connecting seat 23, so that the overall structure after fixed connection is more stable. In this embodiment, the first connecting member 21 and the second connecting member 22 are both cylindrical structures, and may also be arranged in prism structures. For the connecting mechanism, a sliding connection mode of the sliding rail and the sliding block can be set, the sliding direction is a vertical direction, and in short, the connecting mechanism only needs to be set to be a telescopic sliding structure.
When the embroidery needle 101 (embroidery thread) is changed in multicolor embroidery, the embroidery needle 101-a which is out of operation deviates from the needle hole 105, and the guide protection plate 1 and the needle bar frame 103 move synchronously left and right, and the changed embroidery thread 106-a is restricted by the needle hole 1-a of the guide protection plate 1, so that the part of the changed embroidery thread 106-a between the guide protection plate 1 and the embroidery needle 101-a which is out of operation is still in a vertical stretching state, and the part of the changed embroidery thread 106-a between the guide protection plate 1 and the cloth pressing end 104-a of the presser foot 104 is in an oblique state, therefore, the acting force of the changed embroidery thread 106-a on the embroidery needle 101-a is in a vertical direction, the working embroidery thread 106 is in a vertical state, and the stretching acting force on the working embroidery needle 106 is also in a vertical direction. The arrangement can avoid the problem that the embroidery needle is completely deformed due to the oblique stretching acting force of the changed embroidery thread on the embroidery needle in the prior art.
When embroidery needs to be replaced, the presser foot 104 needs to be lifted for replacement, the lifting cylinder 31 is driven, the second connecting piece 22 can slide upwards along the first connecting piece 21, so that the guide protection plate 1 can be driven to lift upwards, the presser foot 104 is lifted again, after the cloth is replaced, the lifting cylinder 31 is driven to reset the guide protection plate 1, the presser foot 104 is pressed downwards, and the lifting mode of the guide protection plate 1 is active lifting.
Example 2:
referring to fig. 4, the embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head comprises a guiding protection plate 1, two connecting mechanisms and a restoring spring 3, wherein the guiding protection plate 1 is horizontally arranged, the direction of the guiding protection plate 1 is arranged along the arrangement direction of needle bars 102, the guiding protection plate 1 is provided with a plurality of needle passing holes 1-A, the number of the needle passing holes 1-A is matched with that of the needle bars 102, and the positions of the needle passing holes 1-A are positioned under the embroidery needles 101 of the needle bars 102. During embroidery, the horizontal height of the guide protection plate 1 is located above the highest point of the movement of the cloth pressing end 104-A of the presser foot 104 and below the lowest point of the movement of the bottom end of the needle bar 102, i.e. during embroidery, the bottom surface of the guide protection plate 1 does not contact with the cloth pressing end 104-A of the presser foot 104, and the top surface of the guide protection plate 1 does not contact with the bottom end of the needle bar 102, while the embroidery needle 101 passes through the guide protection plate 1 from the needle passing hole 1-A, and sequentially passes through the cloth pressing end 104-A of the presser foot 104, the cloth and the needle hole downwards, and the cloth pressing end 104-A of the presser foot 104 is of an open structure.
Two coupling mechanism sets up both ends department about guide guard plate 1, it includes first connecting piece 21, second connecting piece 22, first connecting piece 21 with the equal vertical setting of second connecting piece 22, first connecting piece 21 slip cap is established second connecting piece 22 is fixed respectively at both ends about the bottom of needle bar frame 103 and is provided with connecting seat 23, two the top of first connecting piece 21 is fixed connection respectively two connecting seat 23, promptly coupling mechanism with the connected mode of needle bar frame 103 is lug connection, two the bottom of second connecting piece 22 is fixed connection respectively at both ends about guide guard plate 1. The second connecting member 22 can slide upwards along the first connecting member 21, i.e. a lifting structure of the connecting mechanism is formed. The restoring spring 3 is assembled on the connecting mechanism, in this embodiment, the restoring spring 3 is sleeved outside the first connecting piece 21 and the second connecting piece 22, the bottom end of the restoring spring 3 is connected to the guiding protection plate 1, the top end of the restoring spring 3 is connected to the bottom of the connecting seat 23, and the top end of the restoring spring 3 can also be connected to the first connecting piece 21. For the structural relationship between the first connecting member 21 and the second connecting member 22, the second connecting member 22 can be slidably sleeved on the first connecting member 21, and the effect is similar to the effect provided in the present embodiment, compared with this structural arrangement, in the present embodiment, the aperture of the first connecting member 21 is larger than that of the second connecting member 22, and the first connecting member 21 with a large aperture is used as a component directly connected with the connecting seat 23, so that the overall structure after fixed connection is more stable. In this embodiment, the first connecting member 21 and the second connecting member 22 are both cylindrical structures, and may also be arranged in prism structures. For the coupling mechanism, also can set up the sliding connection mode into the slide rail slider, the slip direction is vertical direction, can connect the guide guard plate with the slider under this kind of mode, resume spring coupling slider and guide rail or connecting seat, all in all, only need set up coupling mechanism to scalable gliding structure and set up and resume the spring and be used for restoring to the throne the guide guard plate can.
When embroidery needs to be changed, the presser foot 104 needs to be lifted for replacement, when the presser foot 104 is lifted, the presser foot 104 provides a vertical upward acting force for the guide protection plate 1, the second connecting piece 22 can slide upwards along the first connecting piece 21, the presser foot 104 can drive the guide protection plate 1 to be lifted, the restoring spring 3 is in a compressed state at the moment, after the cloth is replaced, the presser foot 104 is pressed downwards, the guide protection plate 1 can be quickly restored due to the elastic force of the restoring spring 3, and the lifting mode of the guide protection plate 1 is passive lifting.
Example 3:
referring to fig. 5, the embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head comprises a guiding protection plate 1, two connecting mechanisms and a lifting cylinder 31, wherein the guiding protection plate 1 is horizontally arranged, the direction of the guiding protection plate 1 is arranged along the arrangement direction of needle bars 102, the guiding protection plate 1 is provided with a plurality of needle passing holes 1-A, the number of the needle passing holes 1-A is matched with the number of the needle bars 102, and the positions of the needle passing holes 1-A are positioned under embroidery needles 101 of the needle bars 102. During embroidery, the horizontal height of the guide protection plate 1 is located above the highest point of the movement of the cloth pressing end 104-A of the presser foot 104 and below the lowest point of the movement of the bottom end of the needle bar 102, i.e. during embroidery, the bottom surface of the guide protection plate 1 does not contact with the cloth pressing end 104-A of the presser foot 104, and the top surface of the guide protection plate 1 does not contact with the bottom end of the needle bar 102, while the embroidery needle 101 passes through the guide protection plate 1 from the needle passing hole 1-A, and sequentially passes through the cloth pressing end 104-A of the presser foot 104, the cloth and the needle hole downwards, and the cloth pressing end 104-A of the presser foot 104 is of an open structure.
The two connecting mechanisms are arranged at the left end and the right end of the guide protection plate 1 and comprise a first connecting piece 21 and a second connecting piece 22, the first connecting piece 21 and the second connecting piece 22 are both vertically arranged, the first connecting piece 21 is sleeved on the second connecting piece 22 in a sliding manner, a lower threading 24 arranged along the arrangement direction of the needle bars 102 is arranged at the bottom of the needle bar frame 103, connecting seats 23 are fixed at the top ends of the two first connecting pieces 21, the lower threading 24 is fixed at the bottom of the needle bar frame 103, the two connecting seats 23 are respectively and fixedly connected at the two ends of the lower threading 24, namely, the connection mode of the connecting mechanism and the needle bar frame 103 is indirect connection, the lower thread 24 is provided with a plurality of through holes 24-A, the bottom ends of the two second connecting pieces 22 are respectively and fixedly connected to the left end and the right end of the guide protection plate 1. The second connecting member 22 can slide upwards along the first connecting member 21, i.e. a lifting structure of the connecting mechanism is formed. The lifting cylinder 31 is installed on the needle bar frame 103, a piston rod 32 of the lifting cylinder 31 is vertically arranged, the top end of the lifting cylinder 31 is assembled at the output end of the lifting cylinder 31, and the bottom end of the lifting cylinder is connected with the guide protection plate 1. For the structural relationship between the first connecting member 21 and the second connecting member 22, the second connecting member 22 can be arranged to be slidably sleeved on the first connecting member 21, and the effect is similar to the effect provided in the present embodiment, compared with this structural arrangement, in the present embodiment, the aperture of the first connecting member 21 is larger than that of the second connecting member 22, and the first connecting member 21 with a large aperture is used as a component directly connected with the lower wire 24, so that the overall structure after fixed connection is more stable. In this embodiment, the first connecting member 21 and the second connecting member 22 are both cylindrical structures, and may also be arranged in prism structures.
When embroidery needs to be replaced, the presser foot 104 needs to be lifted for replacement, the lifting cylinder 31 is driven, the second connecting piece 22 can slide upwards along the first connecting piece 21, so that the guide protection plate 1 can be driven to lift upwards, the presser foot 104 is lifted again, after the cloth is replaced, the lifting cylinder 31 is driven to reset the guide protection plate 1, the presser foot 104 is pressed downwards, and the lifting mode of the guide protection plate 1 is active lifting.
Example 4:
referring to fig. 6, the embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head comprises a guiding protection plate 1, two connecting mechanisms and two restoring springs 3, wherein the guiding protection plate 1 is horizontally arranged, the direction of the guiding protection plate 1 is arranged along the arrangement direction of needle bars 102, the guiding protection plate 1 is provided with a plurality of needle passing holes 1-A, the number of the needle passing holes 1-A is matched with that of the needle bars 102, and the positions of the needle passing holes 1-A are positioned under the embroidery needles 101 of the needle bars 102. During embroidery, the horizontal height of the guide protection plate 1 is located above the highest point of the movement of the cloth pressing end 104-A of the presser foot 104 and below the lowest point of the movement of the bottom end of the needle bar 102, i.e. during embroidery, the bottom surface of the guide protection plate 1 does not contact with the cloth pressing end 104-A of the presser foot 104, and the top surface of the guide protection plate 1 does not contact with the bottom end of the needle bar 102, while the embroidery needle 101 passes through the guide protection plate 1 from the needle passing hole 1-A, and sequentially passes through the cloth pressing end 104-A of the presser foot 104, the cloth and the needle hole downwards, and the cloth pressing end 104-A of the presser foot 104 is of an open structure.
Two coupling mechanism sets up both ends department about guide guard plate 1, and it includes first connecting piece 21, second connecting piece 22, first connecting piece 21 with the equal vertical setting of second connecting piece 22, first connecting piece 21 slip cover is established second connecting piece 22 is provided with down crossing line 24 along the setting of needle bar 102 array direction in the bottom of needle bar frame 103, two the top of first connecting piece 21 fixed connection respectively in the both ends of crossing line 24 down, promptly coupling mechanism with the connected mode of needle bar frame 103 is lug connection, cross line 24 down and have a plurality of through-holes 24-A for hold the embroidery thread to pass through, two the bottom of second connecting piece 22 fixed connection respectively is in both ends about guide guard plate 1. The second connecting member 22 can slide upwards along the first connecting member 21, i.e. a lifting structure of the connecting mechanism is formed. The restoring spring 3 is sleeved outside the first connecting piece 21 and the second connecting piece 22, the top end of the restoring spring 3 is connected to the bottom of the lower wire passing 24, and the bottom end of the restoring spring 3 is connected to the guide protection plate 1. For the structural relationship between the first connecting member 21 and the second connecting member 22, the second connecting member 22 can be arranged to be slidably sleeved on the first connecting member 21, and the effect is similar to the effect provided in the present embodiment, compared with this structural arrangement, in the present embodiment, the aperture of the first connecting member 21 is larger than that of the second connecting member 22, and the first connecting member 21 with a large aperture is used as a component directly connected with the lower wire 24, so that the overall structure after fixed connection is more stable. In this embodiment, the first connecting member 21 and the second connecting member 22 are both cylindrical structures, and may also be arranged in prism structures.
When embroidery needs to be changed, the presser foot 104 needs to be lifted for replacement, when the presser foot 104 is lifted, the presser foot 104 provides a vertical upward acting force for the guide protection plate 1, the second connecting piece 22 can slide upwards along the first connecting piece 21, the presser foot 104 can drive the guide protection plate 1 to be lifted, the restoring spring 3 is in a compressed state at the moment, after the cloth is replaced, the presser foot 104 is pressed downwards, the guide protection plate 1 can be quickly restored due to the elastic force of the restoring spring 3, and the lifting mode of the guide protection plate 1 is passive lifting.
Example 5:
referring to fig. 7, the embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head comprises a guiding protection plate 1, two connecting mechanisms and a lifting cylinder 31, wherein the guiding protection plate 1 is horizontally arranged, the direction of the guiding protection plate 1 is arranged along the arrangement direction of needle bars 102, the guiding protection plate 1 is provided with a plurality of needle passing holes 1-a, the number of the needle passing holes 1-a is matched with the number of the needle bars 102, and the positions of the needle passing holes 1-a are positioned under the embroidery needles 101 of the needle bars 102. During embroidery, the horizontal height of the guide protection plate 1 is located above the highest point of the movement of the cloth pressing end 104-A of the presser foot 104 and below the lowest point of the movement of the bottom end of the needle bar 102, i.e. during embroidery, the bottom surface of the guide protection plate 1 does not contact with the cloth pressing end 104-A of the presser foot 104, and the top surface of the guide protection plate 1 does not contact with the bottom end of the needle bar 102, while the embroidery needle 101 passes through the guide protection plate 1 from the needle passing hole 1-A, and sequentially passes through the cloth pressing end 104-A of the presser foot 104, the cloth and the needle hole downwards, and the cloth pressing end 104-A of the presser foot 104 is of an open structure.
Two coupling mechanism sets up guide protection plate 1's left and right sides both ends department, and it includes connecting piece 21, external member 22, two the top of connecting piece 21 is fixed two respectively external member 22, two the bottom fixed connection of connecting piece 21 both ends, two about guide protection plate 1 the equal slip cap of external member 22 is established at two needle bars 102, and needle bar 102 is installed needle bar frame 103, consequently coupling mechanism is indirect connection needle bar frame 103. Be provided with the level and set up and follow needle bar 102 array direction's mounting panel 23, two the external member 22 is fixed respectively the both ends of mounting panel 23, lift cylinder 31 is installed needle bar frame 103, the vertical setting of piston rod 32 of lift cylinder 31, the top assembly is in lift cylinder 31 output, the bottom is connected mounting panel 23.
When embroidery needs to be replaced, the presser foot 104 needs to be lifted for replacement, the lifting cylinder 31 is driven, the sleeve member 22 is sleeved on the needle rod 102 in a sliding manner, so that the guide protection plate 1 can be driven to be lifted upwards, the presser foot 104 is lifted again at the moment, the lifting cylinder 31 is driven after the cloth is replaced, the guide protection plate 1 is reset, the presser foot 104 is pressed downwards at the moment, and the lifting mode of the guide protection plate 1 is active lifting.
Example 6:
referring to fig. 8, the embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head comprises a guiding protection plate 1, two connecting mechanisms and two restoring springs 3, wherein the guiding protection plate 1 is horizontally arranged, the direction of the guiding protection plate 1 is arranged along the arrangement direction of needle bars 102, the guiding protection plate 1 is provided with a plurality of needle passing holes 1-a, the number of the needle passing holes 1-a is matched with that of the needle bars 102, and the positions of the needle passing holes 1-a are positioned under the embroidery needles 101 of the needle bars 102. During embroidery, the horizontal height of the guide protection plate 1 is located above the highest point of the movement of the cloth pressing end 104-A of the presser foot 104 and below the lowest point of the movement of the bottom end of the needle bar 102, i.e. during embroidery, the bottom surface of the guide protection plate 1 does not contact with the cloth pressing end 104-A of the presser foot 104, and the top surface of the guide protection plate 1 does not contact with the bottom end of the needle bar 102, while the embroidery needle 101 passes through the guide protection plate 1 from the needle passing hole 1-A, and sequentially passes through the cloth pressing end 104-A of the presser foot 104, the cloth and the needle hole downwards, and the cloth pressing end 104-A of the presser foot 104 is of an open structure.
Two coupling mechanism sets up guide protection plate 1's left and right sides both ends department, and it includes connecting piece 21, external member 22, two the top of connecting piece 21 is fixed two respectively external member 22, two the bottom fixed connection of connecting piece 21 both ends, two about guide protection plate 1 the equal slip cap of external member 22 is established at two needle bars 102, and needle bar 102 is installed needle bar frame 103, consequently coupling mechanism is indirect connection needle bar frame 103. The two restoring springs 3 are respectively sleeved on the two needle rods 102 with the sleeve 22, the top ends of the restoring springs 3 are connected to the middle parts of the needle rods 102, and the bottom ends of the restoring springs 3 are connected to the sleeve 22.
When embroidery needs to be changed for cloth, the presser foot 104 needs to be lifted for replacement, when the presser foot 104 is lifted, the presser foot 104 gives a vertical upward acting force to the guide protection plate 1, the sleeve 22 can slide upwards along the needle rod 102, the presser foot 104 can drive the guide protection plate 1 to be lifted, the recovery spring 3 is in a compressed state at the moment, after the cloth is replaced, the presser foot 104 is pressed downwards, the guide protection plate 1 can be quickly restored due to the elastic force of the recovery spring 3, and the lifting mode of the guide protection plate 1 is passive lifting.
Example 7:
referring to fig. 9, the embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head comprises a guiding protection plate 1, two connecting mechanisms and a lifting cylinder 31, wherein the guiding protection plate 1 is horizontally arranged, the direction of the guiding protection plate 1 is arranged along the arrangement direction of needle bars 102, the guiding protection plate 1 is provided with a plurality of needle passing holes 1-a, the number of the needle passing holes 1-a is matched with the number of the needle bars 102, and the positions of the needle passing holes 1-a are positioned under the embroidery needles 101 of the needle bars 102. During embroidery, the horizontal height of the guide protection plate 1 is located above the highest point of the movement of the cloth pressing end 104-A of the presser foot 104 and below the lowest point of the movement of the bottom end of the needle bar 102, i.e. during embroidery, the bottom surface of the guide protection plate 1 does not contact with the cloth pressing end 104-A of the presser foot 104, and the top surface of the guide protection plate 1 does not contact with the bottom end of the needle bar 102, while the embroidery needle 101 passes through the guide protection plate 1 from the needle passing hole 1-A, and sequentially passes through the cloth pressing end 104-A of the presser foot 104, the cloth and the needle hole downwards, and the cloth pressing end 104-A of the presser foot 104 is of an open structure.
Two coupling mechanism sets up guide protection plate 1's left and right sides both ends department, and it includes connecting piece 21, external member 22, two the top of connecting piece 21 is fixed two respectively external member 22, two the bottom fixed connection of connecting piece 21 both ends, two about guide protection plate 1 the equal slip cap of external member 22 is established at two needle bars 102, and needle bar 102 is installed needle bar frame 103, consequently coupling mechanism is indirect connection needle bar frame 103. The lifting cylinder 31 is installed on the needle bar frame 103, a piston rod 32 of the lifting cylinder 31 is vertically arranged, the top end of the lifting cylinder 31 is assembled at the output end of the lifting cylinder 31, and the bottom end of the lifting cylinder is connected with the guide protection plate 1.
When embroidery needs to be replaced, the presser foot 104 needs to be lifted for replacement, the lifting cylinder 31 is driven, the sleeve member 22 is sleeved on the needle rod 102 in a sliding manner, so that the guide protection plate 1 can be driven to be lifted upwards, the presser foot 104 is lifted again at the moment, the lifting cylinder 31 is driven after the cloth is replaced, the guide protection plate 1 is reset, the presser foot 104 is pressed downwards at the moment, and the lifting mode of the guide protection plate 1 is active lifting.
The above embodiments are merely illustrative of the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and implement the present invention, and not to limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (11)
1. The embroidery thread guiding and embroidery needle protecting device for the machine head of the independent presser foot embroidery machine is characterized by comprising a guiding protecting plate and at least one connecting mechanism, wherein the connecting mechanism is fixedly connected with the guiding protecting plate, the connecting mechanism is directly or indirectly connected with a needle bar frame, the guiding protecting plate is positioned above the highest point of the movement of the presser foot cloth pressing end and below the lowest point of the movement of the bottom end of the needle bar during embroidery, and a needle passing hole is formed in the position, under each embroidery needle, of the guiding protecting plate.
2. The thread guide and needle guard for an independent presser foot embroidery machine head as claimed in claim 1, wherein said connecting mechanism has a lifting structure for lifting said guide guard upward when said guide guard is subjected to an upward force.
3. The thread guide and needle guard for an independent presser foot embroidery machine head as claimed in claim 2, wherein said connecting mechanism comprises a first connecting member slidably connected or connected to a second connecting member in a vertical direction, said first connecting member being connected to said needle bar frame, and a second connecting member connected to said guide guard.
4. The thread guide and needle guard for an independent presser foot embroidery machine head as claimed in claim 3, wherein said connecting mechanism further comprises a connecting member configured as a connecting seat fixed to said needle bar frame, said first connecting member being fixed to said connecting seat.
5. The embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head as claimed in claim 3, wherein the connecting mechanism further comprises a connecting member configured as a connecting seat, the connecting seat is fixed to the lower thread fixed to the needle bar frame, the lower thread has a plurality of through holes for allowing the embroidery thread to pass through, and the first connecting member is fixed to the connecting seat.
6. The thread guide and needle guard for an independent presser foot embroidery machine head as claimed in claim 4 or 5, wherein said connecting mechanism is equipped with a return spring for returning said guide guard after lifting.
7. The thread guide and needle guard for an independent presser foot embroidery machine head as claimed in claim 4 or 5, wherein said needle bar frame is mounted with a lifting cylinder, a piston rod of said lifting cylinder being connected to said guide guard plate.
8. The embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head as claimed in claim 2, wherein the connecting mechanism comprises a connecting piece and a sleeve piece, the top end and the bottom end of the connecting piece are respectively connected with the sleeve piece and the guiding protection plate, and the sleeve piece is slidably sleeved on the needle rod.
9. The embroidery thread guiding and embroidery needle protecting device for an independent presser foot embroidery machine head as claimed in claim 8, wherein said needle bar is sleeved with a restoring spring, the top end of said restoring spring is connected to the lower dead point of said needle bar, and the bottom end of said restoring spring is connected to said sleeve member for resetting after said guiding protection plate is lifted.
10. The thread guide and embroidery needle guard for an independent presser foot embroidery machine head as claimed in claim 8, wherein said needle bar frame is mounted with a lift cylinder, a piston rod of said lift cylinder being connected to said guide guard plate or said connecting mechanism.
11. The thread guide and needle guard assembly for an independent presser foot embroidery machine head as claimed in claim 1, wherein said presser foot has a presser end of an open configuration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911279622.1A CN110835810A (en) | 2019-12-13 | 2019-12-13 | Embroidery thread guiding and embroidery needle protecting device for independent presser foot embroidery machine head |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911279622.1A CN110835810A (en) | 2019-12-13 | 2019-12-13 | Embroidery thread guiding and embroidery needle protecting device for independent presser foot embroidery machine head |
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| CN110835810A true CN110835810A (en) | 2020-02-25 |
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|---|---|---|---|
| CN201911279622.1A Pending CN110835810A (en) | 2019-12-13 | 2019-12-13 | Embroidery thread guiding and embroidery needle protecting device for independent presser foot embroidery machine head |
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| CN (1) | CN110835810A (en) |
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| CN207259755U (en) * | 2017-10-07 | 2018-04-20 | 浙江越隆缝制设备有限公司 | With the machine head of embroidery machine for playing line supplementary structure |
| CN211471814U (en) * | 2019-12-13 | 2020-09-11 | 浙江镨美科智能刺绣设备有限公司 | Embroidery thread guiding and embroidery needle protecting device for independent presser foot embroidery machine head |
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| JP2002248290A (en) * | 2001-02-23 | 2002-09-03 | Nippon Denpa Kk | Embroidering machine |
| CN101876128A (en) * | 2009-12-31 | 2010-11-03 | 陈启聪 | Presser foot independent driving mechanism for embroidery machine |
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