CN112442807B - Spring take-up middle thread passing device - Google Patents
Spring take-up middle thread passing device Download PDFInfo
- Publication number
- CN112442807B CN112442807B CN202011080673.4A CN202011080673A CN112442807B CN 112442807 B CN112442807 B CN 112442807B CN 202011080673 A CN202011080673 A CN 202011080673A CN 112442807 B CN112442807 B CN 112442807B
- Authority
- CN
- China
- Prior art keywords
- thread
- take
- spring
- wire
- tension adjusting
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- 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
- D05C11/08—Thread-tensioning arrangements
- D05C11/10—Guides, e.g. resilient
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Sewing Machines And Sewing (AREA)
Abstract
The invention discloses a spring thread take-up middle threading device which comprises an upper panel and cover plates which are respectively arranged on the left side and the right side of the upper panel and are vertically arranged, wherein a plurality of thread protecting covers are transversely arranged between the two cover plates in parallel, longitudinally through threading channels are respectively formed between the cover plates and the adjacent thread protecting covers and between the adjacent thread protecting covers, the front sides of the threading channels are respectively provided with longitudinally through threading gaps, the thread protecting covers are respectively provided with thread take-up springs through detachable components, each thread take-up spring is provided with a thread take-up hook which extends forwards and is positioned at the communication position of the lower ends of the two adjacent threading channels, the threading channel on one side of each thread take-up hook is a thread inlet channel, the threading channel on the other side of each thread take-up hook is a loop channel, and each thread take-up spring is also connected with an independent tension adjusting mechanism. During threading, the embroidery thread descends from the thread inlet channel and then ascends from the thread return channel, and the embroidery thread is tensioned, namely passes through the lower end communication part of the thread inlet channel and the thread return channel and is hooked by the thread take-up hook, so that the threading is simple and convenient, and the tension of each thread take-up spring can be independently adjusted.
Description
Technical Field
The invention belongs to the technical field of embroidery machines, and particularly relates to a threading device in spring take-up.
Background
The embroidery machine is provided with an upper threading system, a middle threading system and a lower threading system, wherein the middle threading system is used for assisting the operation of a take-up lever on the embroidery machine; the reason is that the embroidery thread can generate a large turn of 180 degrees on the thread take-up lever, so that the embroidery thread can bear large friction in the embroidering process, and the thread passing system is arranged to reduce the friction on the embroidery thread at the position as much as possible and reduce the thread breakage rate.
The chinese utility model patent with publication number CN201109856 discloses a middle threading wire with a thread-taking-up spring for an embroidery machine, which comprises a main body support, wherein the main body support is provided with a plurality of wire positions, at each wire position, the main body support is correspondingly provided with a rolling shaft assembly and a ceramic chip below the rolling shaft assembly, the front ends of the rolling shaft assembly and the ceramic chip are both suspended, and the ceramic chip is provided with a threading hole; the main part support on still be equipped with the take-up spring axle, this take-up spring is epaxial also to be equipped with the take-up spring subassembly with each line position one-to-one, the take-up spring subassembly include fixed block and turning block, circumferential direction can take place for the fixed block for the turning block, and the take-up spring then with turning block fixed connection.
When the embroidery thread winding device is used, embroidery threads can sequentially pass through the take-up spring, the take-up rod and the ceramic chip after bypassing the suspended end of the rolling shaft assembly, and the tension of the take-up spring on the embroidery threads can be adjusted by driving the rotating block to rotate. However, when the traditional middle threading structure is used, the defects that threading is difficult and complicated, the tension of each take-up spring is difficult to adjust independently and the like exist.
Disclosure of Invention
The invention aims to provide a middle threading device for spring thread take-up, which is simple and convenient in threading and can independently adjust the thread take-up tension of each thread take-up spring.
In order to achieve the purpose, the technical scheme of the invention is as follows:
the utility model provides a wire passing device in spring take-up, includes top panel and the apron that sets up in top panel left and right sides and vertical setting respectively, transversely is equipped with a plurality of vertical protecting wire covers that set up on the top panel between two apron side by side, apron and adjacent protecting wire cover between and form the wire passing channel who vertically link up between the adjacent protecting wire cover respectively, just wire passing channel front side vertically link up the line clearance of crossing that has respectively, protecting wire cover install the take-up spring through removable assemby respectively, the take-up spring have extend forward and be located the take-up hook of two adjacent wire passing channel's lower extreme intercommunication departments, the wire passing channel of take-up hook one side be the wire passing channel, the wire passing channel of opposite side is the return wire channel, the take-up spring still be connected with independent tension adjustment mechanism.
In the middle threading device, the thread picking hook of the thread picking spring is arranged at the lower end communication position of two adjacent thread passing channels, when threading, embroidery thread descends from the thread inlet channel at one side of the thread picking hook and then ascends from the thread returning channel at the other side of the thread picking hook, when the embroidery thread is tensioned, the embroidery thread enters the lower end communication position of the thread inlet channel and the thread returning channel and is hooked by the thread picking hook, thus finishing threading, the whole threading process is very simple and convenient, and the thread picking spring is hidden in each thread protecting cover, so that the thread picking spring is prevented from being exposed outside and being unnecessarily touched, unnecessary damage is caused, and the smooth proceeding of the embroidering process is ensured; and the overall appearance of the middle wire passing is neat and not disordered. Meanwhile, each take-up spring is connected with an independent tension independent adjusting mechanism, and the take-up tension of each take-up spring can be independently adjusted.
In the above thread passing device in spring take-up, the tension independent adjusting mechanism is a stepless adjusting structure. The stepless adjusting mechanism enables the adjusting mechanism to adjust the thread take-up tension of the thread take-up spring more finely and accurately.
In the thread passing device in the spring thread take-up, the detachable assembly comprises a thread take-up seat, the thread take-up seat is fixedly buckled on one side of the thread protecting cover, an accommodating space is formed between the thread take-up seat and the thread protecting cover, the thread take-up spring is positioned in the accommodating space, an arc opening which is communicated with the accommodating space and is vertically arranged is further formed between the thread take-up seat and the thread protecting cover, the arc opening is positioned at the lower end communication part of two adjacent thread passing channels, and the thread take-up hook penetrates through the arc opening and extends to the outer arc opening of the accommodating space. The thread take-up spring can be fixed in the accommodating space by buckling and fixing the thread take-up seat on the thread protecting cover, the arc-shaped opening formed between the thread take-up seat and the thread protecting cover is just positioned at the lower end communication position of the thread inlet channel and the thread return channel, and the thread take-up hook penetrates through the arc-shaped opening, so that when embroidery threads enter the arc-shaped opening from the lower end communication position of the thread inlet channel and the thread return channel, the embroidery threads are immediately hooked by the thread take-up hook.
In the thread passing device in the spring thread take-up, the thread take-up spring comprises a cylindrical spring body, the spring body is sleeved on an installation shaft, one end of the spring body extends outwards to form the thread take-up hook, the installation shaft is arranged in an accommodating space, and thread passing guide mechanisms crossing two sides of the thread protecting cover are arranged above the installation shaft. The spring body is sleeved and fixed on the mounting shaft, when the mounting shaft rotates, the thread picking hook rotates along with the spring body, and the tension of embroidery threads hooked by the thread picking hook changes along with the thread picking hook. The thread guide mechanism arranged across the two sides of the thread guard cover is used for keeping the embroidery thread away from the outer side wall of the thread guard cover and avoiding the embroidery thread from being worn due to the contact with the outer side wall of the thread guard cover.
In the above thread passing device in spring thread take-up, the thread passing guide mechanism comprises a U-shaped retaining column, a through hole is arranged on the thread protecting cover, the U-shaped retaining column is horizontally arranged and penetrated in the through hole, the bending part of the U-shaped retaining column is positioned in the through hole, two sides of the U-shaped retaining column are respectively positioned in the thread passing channels at two sides of the thread protecting cover, and the other end of the U-shaped retaining column is fixed on the thread protecting cover through a positioning structure;
the positioning structure comprises a hook body arranged on the wire protecting cover, the end part of the U-shaped retaining column is positioned in the hook body, an elastic clamping piece is arranged in the hook body, the elastic clamping piece is pressed on the end part of the U-shaped retaining column, and the elastic clamping piece and/or the hook body are/is provided with concave-convex positioning structures respectively.
In the embroidery thread running process, the embroidery thread is only contacted with two sides of the U-shaped retaining column and is not contacted with the thread protecting cover, the contact area is greatly reduced, and the friction of the circular arc-shaped peripheral wall of the U-shaped retaining column to the embroidery thread is also greatly reduced. When the U-shaped retaining column is fixed by the elastic clamping piece, the U-shaped retaining column is very convenient and fast to assemble, disassemble and replace.
In the above thread passing device for spring take-up, the independent tension adjusting mechanism comprises a tension adjusting gear fixedly arranged on an installation shaft, the installation shaft is rotatably arranged in the accommodating space, the tension adjusting gear is meshed with a tension adjusting rack vertically arranged in a lifting manner, and the side wall of the tension adjusting rack is tightly attached to the inner wall of the accommodating space and can slide under the action of external force.
Because the tension adjusting rack is meshed with the tension adjusting gear, when the tension adjusting rack vertically ascends and descends, the tension adjusting gear circumferentially rotates, and therefore the thread take-up tension of the thread take-up spring fixedly sleeved on the mounting shaft is adjusted. Because the side wall of the tension adjusting rack is tightly attached to the inner wall of the accommodating space, the tension adjusting rack can still keep the position unchanged even after the external force driving the tension adjusting rack to slide up and down disappears.
In the above thread passing device for spring take-up, the tension adjusting gear is an incomplete gear, and the incomplete gear has a gear tooth surface and a non-gear tooth surface; the tension adjusting rack is provided with a meshing part which is extruded by the upper panel and meshed with the gear surface of the wheel, and a limiting wedge surface which is extruded by the upper panel and is in friction fit with the gear surface of the non-wheel to form an ascending stroke end point of the meshing part;
a limiting piece used for limiting the descending stroke end point of the meshing part is further arranged between the tension adjusting rack and the upper panel;
the bottom end of the tension adjusting rack is provided with a push-pull handle extending out of the wire protecting cover, and the upper panel is provided with tightness scales which correspond to the push-pull handles one by one and are used for indicating the tension of the take-up hook.
When the non-gear tooth surface of the incomplete gear faces the meshing part, the meshing part can freely enter and exit the accommodating space, and the tension adjusting rack can be mounted or dismounted; when the gear tooth surface of the incomplete gear faces the meshing part, the meshing part is meshed with the gear tooth surface, and the side wall of the meshing part is tightly attached to the inner wall of the accommodating space, so that the incomplete gear can stay in the accommodating space.
Under the condition that the meshing part is meshed with the tension adjusting gear, when the push-pull handle is pushed upwards, the tension adjusting rack moves upwards, the thread taking-up hook of the thread taking-up spring moves downwards, and the thread taking-up tension of the thread taking-up hook is increased; when the push-pull handle is pulled down, the tension adjusting rack moves downwards, the thread take-up hook of the thread take-up spring moves upwards, and the thread take-up tension of the thread take-up hook is reduced.
In order to prevent the thread breaking caused by the overlarge thread-taking-up tension of the thread-taking-up spring, the tension adjusting gear is provided with a non-gear tooth surface, the tension adjusting rack is provided with a limiting wedge surface, and when the meshing part reaches the end point of the upward stroke, the limiting wedge surface is mutually rubbed with the non-gear tooth surface and is also limited in the accommodating space.
In the above thread passing device for spring take-up, the limiting member comprises a step formed on the upper panel, a convex edge is formed on one side of the tension adjusting rack facing the upper panel, and the convex edge abuts against the step when the engaging portion reaches the end point of the descending stroke.
In the above thread passing device in spring thread take-up, the thread take-up seat is provided with at least one insertion rod, the thread guard cover is provided with insertion holes corresponding to the insertion rods one by one, and one end of each insertion rod penetrating through the insertion hole is provided with a buckling clamping jaw;
a guide piece which is convenient for the insertion rod to align the insertion hole is arranged between the wire picking seat and the wire protecting cover; the guide piece including setting up two piece at least guide bars on the protecting wire cover, take up the line seat on then set up with the guiding hole of guide bar one-to-one, the length of each guide bar all is greater than the length of grafting pole.
The thread take-up seat can be quickly and conveniently fixed and arranged on the thread protecting cover by adopting the matching of the plug-in rod with the buckling clamping jaw and the plug-in hole; because the length of the guide rod is greater than that of the inserting rod, the guide piece can guide in advance, and the inserting rod is ensured to be aligned with the inserting hole.
Compared with the prior art, the invention has the beneficial effects that:
(1) in the middle threading device, the thread picking hook of the thread picking spring is arranged at the lower end communication position of two adjacent thread passing channels, when threading, embroidery thread descends from the thread inlet channel at one side of the thread picking hook and then ascends from the thread returning channel at the other side of the thread picking hook, when the embroidery thread is tensioned, the embroidery thread enters the lower end communication position of the thread inlet channel and the thread returning channel and is hooked by the thread picking hook, thus finishing threading, the whole threading process is very simple and convenient, and the thread picking spring is hidden in each thread protecting cover, so that the thread picking spring is prevented from being exposed outside and being unnecessarily touched, unnecessary damage is caused, and the smooth proceeding of the embroidering process is ensured; and the overall appearance of the middle wire passing is neat and not disordered. Meanwhile, each take-up spring is connected with an independent tension independent adjusting mechanism, and the take-up tension of each take-up spring can be independently adjusted.
(2) According to the embroidery thread take-up device, the take-up spring can be fixed in the accommodating space formed between the take-up seat and the thread protecting cover by buckling and fixing the take-up seat on the thread protecting cover, the arc-shaped opening formed between the take-up seat and the thread protecting cover is just positioned at the lower end communication position of the thread inlet channel and the thread return channel, and the take-up hook penetrates through the arc-shaped opening, so that when embroidery threads enter the arc-shaped opening from the lower end communication position of the thread inlet channel and the thread return channel, the embroidery threads are immediately hooked by the take-up hook.
(3) In the invention, a spring body of the thread take-up spring is sleeved on an installation shaft, and one end of the spring body extends outwards to form a thread take-up hook; the tension independent adjusting mechanism comprises a tension adjusting gear fixedly arranged on the mounting shaft, the tension adjusting gear is meshed with a tension adjusting rack vertically arranged in a lifting mode, and the side wall of the tension adjusting rack is tightly attached to the inner wall of the accommodating space and can slide under the action of external force; when the tension adjusting rack is vertically lifted, the tension adjusting gear rotates circumferentially, so that the thread take-up tension of the thread take-up spring fixedly sleeved on the mounting shaft is adjusted. Because the side wall of the tension adjusting rack is tightly attached to the inner wall of the accommodating space, the tension adjusting rack can still keep the position unchanged even after the external force driving the tension adjusting rack to slide up and down disappears.
(4) In the invention, the thread guide mechanisms crossing two sides of the thread protecting cover are arranged above the thread take-up spring, in the running process of embroidery threads, the embroidery threads are only contacted with two sides of the U-shaped retaining column but not contacted with the thread protecting cover, the contact area is greatly reduced, and the friction of the circular arc-shaped peripheral wall of the U-shaped retaining column on the embroidery threads is also greatly reduced.
(5) According to the invention, the tension independent adjusting mechanism is a stepless adjusting structure, and the stepless adjusting mechanism enables the tension independent adjusting mechanism to adjust the thread take-up tension of the thread take-up spring more finely and accurately.
(6) In the invention, the tension adjusting gear is an incomplete gear which is provided with a gear tooth surface and a non-gear tooth surface; the tension adjusting rack is provided with an engaging part and a limiting wedge surface, when the non-gear tooth surface of the incomplete gear faces the engaging part, the engaging part can freely enter and exit the accommodating space, and the tension adjusting rack can be mounted or dismounted at the moment; when the gear tooth surface of the incomplete gear faces the meshing part, the meshing part is meshed with the gear tooth surface, and the side wall of the meshing part is tightly attached to the inner wall of the accommodating space, so that the incomplete gear can stay in the accommodating space. Under the condition that the meshing part is meshed with the tension adjusting gear, when the push-pull handle is pushed upwards, the tension adjusting rack moves upwards, the thread taking-up hook of the thread taking-up spring moves downwards, and the thread taking-up tension of the thread taking-up hook is increased; when the push-pull handle is pulled down, the tension adjusting rack moves downwards, the thread take-up hook of the thread take-up spring moves upwards, and the thread take-up tension of the thread take-up hook is reduced. In order to prevent the thread breaking caused by the overlarge thread-taking-up tension of the thread-taking-up spring, the tension adjusting gear is provided with a non-gear tooth surface, the tension adjusting rack is provided with a limiting wedge surface, and when the meshing part reaches the end point of the upward stroke, the limiting wedge surface is mutually rubbed with the non-gear tooth surface and is also limited in the accommodating space.
Drawings
FIG. 1 is a schematic structural view of a thread passing device in spring take-up according to the present invention;
FIG. 2 is a schematic view of a partial explosion structure of the thread passing device in the spring take-up according to the present invention;
FIG. 3 is an exploded view of the thread take-up assembly of FIG. 2;
FIG. 4 is a schematic view of the thread take-up assembly shown in FIG. 2 from another perspective;
FIG. 5 is a schematic view showing an application structure of a thread passing device in spring take-up in an embroidery machine according to the present invention;
FIG. 6 is a schematic view of a thread passing structure of the embroidery thread of FIG. 5.
Detailed Description
The technical solution of the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
Example 1
As shown in fig. 1 and fig. 2, the middle string passing device for spring string taking-up in the embodiment includes an upper panel 1 and cover plates 2 which are respectively disposed on the left and right sides of the upper panel 1 and are vertically disposed, a plurality of string protecting covers 3 vertically disposed on the upper panel 1 are transversely disposed between the two cover plates 2 in parallel, string passing channels 100 which are longitudinally through are respectively formed between the cover plates 2 and the adjacent string protecting covers 3 and between the adjacent string protecting covers 3, string passing gaps 200 which are longitudinally through are respectively disposed on the front sides of the string passing channels 100, and two adjacent string passing channels 100 are mutually communicated at the lower ends of the string protecting covers 3.
In this embodiment, the upper end of the wire cover 3 is plate-shaped, the plate-shaped portion 31 has positioning wedges 32 facing the upper panel 1, and the upper panel 1 is provided with positioning holes 12 corresponding to the positioning wedges 32 one by one. The positioning wedges 32 include a main positioning wedge 32a and other auxiliary positioning wedges 32b arranged at the top end of the wire cover 3, the top end of the main positioning wedge 32a is provided with a protrusion 32c, and the bottom end of the main positioning wedge 32a is provided with a sliding inclined surface 32 d. When the wire protecting cover 3 is installed on the upper panel 1, the protrusion 32c side of the main positioning wedge 32a is aligned with the positioning hole 12, the protrusion 32c side of the main positioning wedge 32a firstly enters the corresponding positioning hole 12, the sliding inclined surface 32d drives the wire protecting cover 3 to move upwards, and when the main positioning wedge 32a enters the positioning hole 12, the protrusion 32c is already sent to the back of the upper panel 1 to form limiting; at this time, the other auxiliary positioning wedges 32b are also aligned with the corresponding positioning holes 12, and the whole wire protection cover 3 is translated and pushed to the upper panel 1, so that the installation of the wire protection cover 3 can be completed.
As shown in fig. 2, a take-up spring 5 is mounted on each of the wire guards 3 via a detachable member 4. In this embodiment, the detachable component 4 includes a take-up base 41, the take-up base 41 is fixedly fastened to one side of the thread protecting cover 3, an accommodating space 300 is formed between the take-up base 41 and the thread protecting cover 3, and the take-up spring 5 is located in the accommodating space 300.
As shown in fig. 3 and shown in fig. 2, in the present embodiment, the fixing and engaging manner of the wire picking seat and the wire protecting cover 3 is as follows: the wire picking seat 41 is provided with two insertion rods 41a, the wire protecting cover 3 is provided with insertion holes 33 corresponding to the insertion rods 41a one by one, and one end of each insertion rod 41a penetrating through the insertion hole 33 is provided with a buckling clamping jaw 41 b. When the insertion rod 41a penetrates into the insertion hole 33, the fastening clamping jaw 41b is pressed by the inner wall of the insertion hole 33 to be folded; when the plug rod 41a passes through the plug hole 33, the pressure applied to the engaging claws 41b is removed, and the engaging claws 41b are opened to fix the plug rod 41a to the wire cover.
In order to align the inserting rod 41a with the inserting hole 33, a guide 42 is further provided between the thread take-up holder 41 and the thread protecting cover 3. The guide member 42 of the present embodiment includes two guide rods 42a disposed on the thread protecting cover 3, and the thread take-up holder 41 is provided with guide holes 42b corresponding to the guide rods 42a one-to-one, and the length of each guide rod 42a is greater than that of the insertion rod 41a, so as to facilitate pre-guiding.
As shown in fig. 3, the thread take-up spring 5 of the present embodiment includes a cylindrical spring body 51, the spring body 51 is sleeved on a mounting shaft 52, and the mounting shaft 52 is rotatably disposed in the accommodating space 300; one end of the spring body 51 extends outward to form a thread take-up hook 53. As shown in fig. 2, after the take-up stand 41 is assembled, an arc opening 400 which is communicated with the accommodating space 300 and is vertically arranged is further formed between the take-up stand 41 and the wire protecting cover 3, the arc opening 400 is located at the communication position of the lower ends of the two adjacent wire passing channels 100, the take-up hook 53 passes through the arc opening 400 and extends out of the accommodating space 300, so that the two adjacent wire passing channels 100 at the two sides of the take-up hook 53 become a wire inlet channel and a wire return channel respectively; as shown in fig. 4, 5 and 6, during threading, the embroidery thread descends from the thread inlet channel at one side of the thread picking hook 53, then ascends from the thread returning channel at the other side of the thread picking hook 53, and when the embroidery thread is tightened, the embroidery thread enters the lower end communicating part of the thread inlet channel and the thread returning channel and is hooked by the thread picking hook 53, thereby completing threading.
In order to protect the thread take-up spring 5, the lower end of the thread protector 3 is formed into a cover shape, and a cover-shaped portion 34 extends downward and is disposed in a half-surrounded manner outside the thread take-up spring 5.
In order to avoid the friction of the embroidery thread caused by the contact between the embroidery thread and the outer side wall of the thread protecting cover 3 in the thread inlet channel and the thread returning channel. As shown in fig. 4, and as can be seen from fig. 2 and 3, a thread guiding mechanism 6 is provided above the thread take-up spring 5 and straddles both sides of the thread protecting cover 3.
In this embodiment, the wire guiding mechanism 6 includes a U-shaped retaining post 61, the wire protecting cover 3 is provided with a through hole 35, the U-shaped retaining post 61 is horizontally disposed and inserted into the through hole 35, the bent portion of the U-shaped retaining post 61 is located in the through hole 35, two sides of the U-shaped retaining post 61 are respectively located in the wire passing channels 100 on two sides of the wire protecting cover 3, and the other end of the U-shaped retaining post 61 is fixed on the wire protecting cover 3 through a positioning structure 62.
After the U-shaped retaining post 61 is assembled, the column parts at two sides of the U-shaped retaining post 61 are respectively positioned in the thread passing channels at two sides of the thread protecting cover 3, so that when embroidery threads pass through, the embroidery threads only contact with the U-shaped retaining post 61 and do not contact with the thread protecting cover 3, and the abrasion to the embroidery threads is greatly reduced.
As shown in fig. 3 and 4, the positioning structure 62 of the U-shaped retaining post 61 includes a hook 62a disposed on the wire-protecting cover 3, an end of the U-shaped retaining post 61 is disposed in the hook 62a, an elastic fastener 62b is disposed in the hook 62a, the elastic fastener 62b is pressed on the end of the U-shaped retaining post 61, and the elastic fastener 62b and the hook 62a are respectively provided with a concave-convex positioning structure 62 c.
In this embodiment, each thread take-up spring 5 is connected to an independent tension independent adjusting mechanism 7, so as to realize independent adjustment of the thread take-up tension of each thread take-up spring 5.
As shown in fig. 3 and 4, and as can be seen from fig. 2 and 5, the independent tension adjusting mechanism 7 of the present embodiment includes a tension adjusting gear 71 fixedly disposed on the mounting shaft 52, the tension adjusting gear 71 is engaged with a tension adjusting rack 72 vertically disposed, and a side wall of the tension adjusting rack 72 is tightly attached to an inner wall of the accommodating space 300 and can slide under an external force.
As shown in fig. 3, the sliding engagement between the tension adjusting rack 72 and the take-up stand 41 is as follows: a sliding groove 72a is arranged on the side wall of the tension adjusting rack 72, and the top end of the sliding groove 72a is opened and the bottom end is closed; the thread take-up base 41 and the thread protecting cover 3 are provided with corresponding slide rails (not shown in the figure), and the tension adjusting rack 72 can vertically lift relative to the thread take-up base 41 through the sliding fit of the slide groove 72a and the slide rails.
Similarly, the same or similar structure may be provided between the tension adjusting rack 72 and the wire cover 3 so that the tension adjusting rack 72 slides up and down more smoothly.
As can be seen from fig. 3, the tension adjusting gear 71 of the present embodiment is an incomplete gear having a gear tooth face 71a and a non-gear tooth face 71 b; and the tension adjusting rack 72 has an engaging portion 72b pressed by the upper panel 1 to be engaged with the wheel tooth face 71a, and a stopper wedge face 72c pressed by the upper panel 1 to be frictionally engaged with the non-wheel tooth face 71b to form an end point of an upward stroke of the engaging portion 72 b.
Meanwhile, the bottom end of the tension adjusting rack 72 is provided with a push-pull handle 72d which is convenient for a user to push and pull the thread take-up tension rack 42 to drive the thread take-up tension rack to lift, and the upper panel 1 is provided with elastic scales 13 which are corresponding to the push-pull handles 72d one by one and used for indicating the tension of the thread take-up spring 5.
When the non-gear tooth surface 71b faces the engaging portion 72b, the engaging portion 72b can freely move into and out of the accommodating space 300, and the tension adjusting rack 72 can be mounted or dismounted; when the gear tooth face 71a faces the engaging portion 72b, the engaging portion 72b is not only engaged with the gear tooth face 71a, but also the side wall of the engaging portion 72b is closely attached to the inner wall of the accommodating space 300, so that the tension adjusting rack 72 can stay in the accommodating space 300.
When the engaging portion 72b is engaged with the tension adjusting gear 71, and the push-pull handle 72d is pushed upward, the tension adjusting rack 72 moves upward, the thread take-up hook 53 of the thread take-up spring 5 moves downward, and the thread take-up tension thereof increases; when the push-pull handle 72d is pulled down, the tension adjusting rack 72 moves down, the thread take-up hook 53 of the thread take-up spring 5 moves up, and the thread take-up tension thereof decreases.
In order to prevent the thread breakage caused by the excessive thread-taking-up tension of the thread-taking-up spring 5, the tension adjusting gear 71 is provided with a non-gear tooth surface 71b, and the tension adjusting rack 72 is provided with a limit wedge surface 72c, when the meshing portion 71b reaches the end of the upward stroke, the limit wedge surface 72c rubs against the non-gear tooth surface 71b and is also limited in the accommodating space 300.
Besides the limitation of the up-stroke end point of the tension adjusting rack 72 is realized by adopting the limiting wedge surface 72c and the non-gear tooth surface 71b, a limiting member for limiting the down-stroke end point of the tension adjusting rack 72 is arranged between the tension adjusting rack 72 and the upper panel 1.
As shown in fig. 2 and fig. 4, the stopper includes a step 14 formed on the upper panel 1, and a protruding edge 72e is formed on the side of the tension adjusting rack 72 facing the upper panel 1, and the protruding edge 72e abuts against the step 14 when the engaging portion 72b reaches the end of the downward stroke.
As shown in fig. 1, a take-up lever taking-out hole is formed in the upper panel 1 between the adjacent thread guards 3, and each take-up lever 8 of the embroidery machine is passed through the corresponding take-up lever taking-out hole 11 as shown in fig. 5 and 6 when the spring take-up mid-threading device of the present embodiment is applied to the embroidery machine.
The working principle of the thread passing device in the spring thread take-up of the embodiment is as follows:
during threading, the embroidery thread descends from the thread inlet channel on the right side of each thread protecting cover 3, rotates at the arc-shaped opening at the lower end of each thread protecting cover 3, ascends from the thread returning channel on the left side of the corresponding thread protecting cover 3, passes through the take-up lever 200 and then descends through the needle hole; when the embroidery thread is tensioned, the embroidery thread falls on the thread take-up hook 53; due to the blocking effect of the U-shaped stop post 61, the embroidery thread is only contacted with the U-shaped stop post 61 and is not contacted with the thread protecting cover 3;
in the use process, if the thread taking tension of the thread taking-up hook 53 needs to be increased, the push-pull handle 72d is pushed upwards, so that the tension adjusting gear 71 rotates anticlockwise, and the thread taking-up hook 53 is driven to rotate anticlockwise along the arc-shaped opening; if the thread take-up tension of the large thread take-up hook 53 needs to be reduced, the push-pull handle 72d is pulled down.
Claims (5)
1. A spring thread take-up middle thread passing device comprises an upper panel (1) and vertically arranged cover plates (2) which are respectively arranged on the left side and the right side of the upper panel (1), wherein a plurality of thread protecting covers (3) vertically arranged on the upper panel (1) are transversely arranged between the two cover plates (2) in parallel, longitudinally through thread passing channels (100) are respectively formed between the cover plates (2) and the adjacent thread protecting covers (3) and between the adjacent thread protecting covers (3), and the front sides of the thread passing channels (100) are respectively provided with longitudinally through thread passing gaps (200), the spring take-up middle thread passing device is characterized in that the thread protecting covers (3) are respectively provided with thread take-up springs (5) through detachable components (4), the thread take-up springs (5) are provided with thread take-up hooks (53) which extend forwards and are positioned at the lower end communication positions of the two adjacent thread passing channels (100), and the thread passing channels (100) on one side of the thread take-up hooks (53) are thread passing channels, the thread-passing channel (100) at the other side is a thread-returning channel, and the take-up spring (5) is also connected with an independent tension adjusting mechanism (7);
the independent tension adjusting mechanism (7) is of a stepless adjusting structure;
the detachable component (4) comprises a wire picking seat (41), the wire picking seat (41) is fixedly buckled on one side of the wire protecting cover (3), an accommodating space (300) is formed between the wire picking seat (41) and the wire protecting cover (3), the wire picking spring (5) is positioned in the accommodating space (300), an arc-shaped opening (400) which is communicated with the accommodating space (300) and is vertically arranged is further formed between the wire picking seat (41) and the wire protecting cover (3), the arc-shaped opening (400) is positioned at the lower end communication part of two adjacent wire passing channels (100), and the wire picking hook (53) penetrates through the arc-shaped opening (400) and extends out of the accommodating space (300);
the thread take-up spring (5) comprises a cylindrical spring body (51), the spring body (51) is sleeved on a mounting shaft (52), one end of the spring body (51) extends outwards to form the thread take-up hook (53), the mounting shaft (52) is arranged in the accommodating space (300), and thread guide mechanisms (6) crossing two sides of the thread protecting cover (3) are arranged above the mounting shaft (52);
the tension independent adjusting mechanism (7) comprises a tension adjusting gear (71) fixedly arranged on an installation shaft (52), the installation shaft (52) is rotatably arranged in the accommodating space (300), the tension adjusting gear (71) is meshed with a tension adjusting rack (72) vertically arranged in a lifting way, and the side wall of the tension adjusting rack (72) is tightly attached to the inner wall of the accommodating space (300) and can slide under the action of external force;
cross line guide mechanism (6) include U type bumping post (61), protect line cover (3) on be equipped with through-hole (35), U type bumping post (61) level set up and wear to locate in through-hole (35) and the flexion of U type bumping post (61) is located through-hole (35), the both sides of U type bumping post (61) be located wire passing channel (100) of protecting line cover (3) both sides respectively, the other end of U type bumping post (61) pass through location structure (62) and fix on protecting line cover (3).
2. The thread passing device in spring thread take-up according to claim 1, wherein the positioning structure (62) comprises a hook body (62 a) arranged on the thread protecting cover (3), the end of the U-shaped retaining post (61) is positioned in the hook body (62 a), an elastic clamping piece (62 b) is arranged in the hook body (62 a), the elastic clamping piece (62 b) is pressed on the end of the U-shaped retaining post (61), and a concave-convex positioning structure (62 c) is respectively arranged on the elastic clamping piece (62 b) and/or the hook body (62 a).
3. The thread passing device for spring thread take-up according to claim 1, wherein said tension adjusting gear (71) is an incomplete gear having a gear tooth face (71 a) and a non-gear tooth face (71 b); the tension adjusting rack (72) is provided with a meshing part (72 b) which is extruded by the upper panel (1) and meshed with the gear tooth surface (71 a), and a limit wedge surface (72 c) which is extruded by the upper panel (1) and is in friction fit with the non-gear tooth surface (71 b) to form an ascending stroke end point of the meshing part (72 b);
a limiting piece used for limiting the descending stroke end point of the meshing part (72 b) is further arranged between the tension adjusting rack (72) and the upper panel (1);
the bottom end of the tension adjusting rack (72) is provided with a push-pull handle (72 d) extending out of the wire protecting cover (3), and the upper panel (1) is provided with elastic scales (13) which correspond to the push-pull handles (72 d) one by one and are used for indicating the tension of the wire picking hook (53).
4. The thread passing device for spring take-up according to claim 3, wherein the retaining member comprises a step (14) formed on the upper panel (1), a ledge (72 e) is formed on a side of the tension adjusting rack (72) facing the upper panel (1), and the ledge (72 e) abuts against the step (14) when the engaging portion (72 b) reaches the end of the descending stroke.
5. The spring take-up middle threading device according to any one of claims 1 to 4, wherein the take-up base (41) is provided with at least one insertion rod (41 a), the wire protecting cover (3) is provided with insertion holes (33) corresponding to the insertion rods (41 a) one by one, and one end of each insertion rod (41 a) penetrating through the insertion hole (33) is provided with a buckling clamping jaw (41 b);
a guide piece (42) which is convenient for the plug rod (41 a) to align the plug hole (33) is arranged between the wire taking seat (41) and the wire protecting cover (3); the guide piece (42) comprises at least two guide rods (42 a) arranged on the wire protecting cover (3), guide holes (42 b) corresponding to the guide rods (42 a) one by one are formed in the wire picking seat (41), and the length of each guide rod (42 a) is larger than that of each inserting rod (41 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011080673.4A CN112442807B (en) | 2020-10-10 | 2020-10-10 | Spring take-up middle thread passing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011080673.4A CN112442807B (en) | 2020-10-10 | 2020-10-10 | Spring take-up middle thread passing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112442807A CN112442807A (en) | 2021-03-05 |
| CN112442807B true CN112442807B (en) | 2022-09-20 |
Family
ID=74736012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011080673.4A Active CN112442807B (en) | 2020-10-10 | 2020-10-10 | Spring take-up middle thread passing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112442807B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638146B (en) * | 2021-07-13 | 2022-11-08 | 浙江信胜科技股份有限公司 | Make things convenient for take-up assembly and well line panel device and embroidery machine of facial suture elasticity regulation |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101225588B (en) * | 2008-02-14 | 2011-12-07 | 杭州经纬电子机械制造股份有限公司 | String-passing structure of computer embroidery machine |
| CN102704185B (en) * | 2012-06-08 | 2013-11-20 | 江苏金龙科技股份有限公司 | Automatic dust collection device of computerized flat knitting machine |
| CN105483952A (en) * | 2015-10-27 | 2016-04-13 | 樊秀英 | Threading apparatus for embroidery |
| CN207109314U (en) * | 2017-06-30 | 2018-03-16 | 李玲 | A kind of embroidery machine having needle stem case |
| CN109423784A (en) * | 2017-08-29 | 2019-03-05 | 袁建儿 | It is a kind of can self-feeding rewinding embroidery machine |
| CN108505236A (en) * | 2018-05-21 | 2018-09-07 | 贵州省施秉县舞水云台旅游商品开发有限公司 | A kind of tension device of embroidery machine needlework |
-
2020
- 2020-10-10 CN CN202011080673.4A patent/CN112442807B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN112442807A (en) | 2021-03-05 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112442807B (en) | Spring take-up middle thread passing device | |
| US8366215B2 (en) | Stabilizing assembly of drawable carrier | |
| US20050087311A1 (en) | Mounting device for a guide cord | |
| CN214400964U (en) | Middle threading device for spring thread take-up | |
| CN102404962A (en) | Sliding rail device | |
| CN106240172B (en) | A kind of printer engine structure | |
| US5706552A (en) | Apparatus for preventing a motor rolling door from falling | |
| CN106183465B (en) | A kind of cassette mechanism structure | |
| CN206049045U (en) | A kind of cassette mechanism structure | |
| CN206049041U (en) | A kind of printer engine structure | |
| CN212716351U (en) | Protective door | |
| KR20140035436A (en) | Operating apparatus for solar radiation shielding device | |
| JPH08173677A (en) | Threading unit for sewing machine | |
| US20110259531A1 (en) | Panel curtain system with improved operating runner | |
| CN209210157U (en) | A kind of lift door hanging plate and the elevator door-motor with the door strap | |
| US20130068406A1 (en) | Electric sunshade assembly | |
| CN210596478U (en) | Yarn nozzle driving device and flat knitting machine | |
| CN215873685U (en) | Novel pull head of quick change formula | |
| CN216721764U (en) | Protection architecture of fingerprint identification device | |
| CN213096488U (en) | Zip fastener convenient to it is fixed to sew up | |
| CN111833553B (en) | Intelligent game machine | |
| CN215289302U (en) | Drying device capable of conveniently adjusting angle and height for textile printing and dyeing | |
| CN220158040U (en) | Vertically adjustable drag hook assembly of curtain robot | |
| CN217581761U (en) | Synchronous belt quick fixing device | |
| CN221242480U (en) | Device for adjusting tensioning strength of curtain driver |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |