CN209798256U - Middle dividing presser foot with ultra-short seam allowance knife - Google Patents
Middle dividing presser foot with ultra-short seam allowance knife Download PDFInfo
- Publication number
- CN209798256U CN209798256U CN201920240418.8U CN201920240418U CN209798256U CN 209798256 U CN209798256 U CN 209798256U CN 201920240418 U CN201920240418 U CN 201920240418U CN 209798256 U CN209798256 U CN 209798256U
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- CN
- China
- Prior art keywords
- ultra
- seam allowance
- connector
- knife
- elastic element
- 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.)
- Withdrawn - After Issue
Links
- 238000003825 pressing Methods 0.000 claims abstract description 29
- 238000009958 sewing Methods 0.000 claims abstract description 24
- 238000000034 method Methods 0.000 claims abstract description 4
- 230000000903 blocking effect Effects 0.000 claims description 9
- 238000009941 weaving Methods 0.000 abstract description 2
- 239000004744 fabric Substances 0.000 description 8
- 230000004888 barrier function Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009940 knitting Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000009965 tatting Methods 0.000 description 1
Abstract
The utility model relates to a weaving sewing machine part. The purpose is to provide the center-dividing presser foot provided with the ultrashort seam allowance knife, and the center-dividing presser foot can ensure that the quality of a sewn center-dividing line meets the requirement. The technical scheme is as follows: a middle dividing presser foot provided with an ultra-short seam allowance knife comprises a connector, a pressing plate and a first elastic element, wherein the connector is fixedly connected with the bottom end of a pressing rod, the pressing plate is hinged with the connector through two hinge lugs at the upper part of the pressing plate, and is provided with a needle hole, and the first elastic element applies force to the connector and the pressing plate respectively; the method is characterized in that: still fix a position the tang sword that is used for imbedding in the seam when making on the clamp plate, the tang sword is located the pinhole front side of clamp plate to forward and down a plurality of distances of outstanding.
Description
Technical Field
The utility model relates to a weaving sewing machine part specifically is divide (centering) presser foot in sewing machine who is furnished with ultrashort tang sword.
Background
In the clothing knitting and tatting products, the middle-pressure dividing line is often needed to be arranged at the position with radian such as a collar, a clamping ring and the like (two pieces of fabric 40 are connected by sewing, about 1-2mm of the left side and the right side of a seam 20 at the connecting position of the two pieces of fabric are respectively sewn with a sewing line 30, the distance between the two sewing lines and the seam is required to be equal or close; see fig. 14 and 15) so as to play the roles of strengthening, decorating and beautifying. But without special tools, the operation can be held only by the operation skills of operators; since it is difficult to control the size of the middle seam (it is difficult to ensure the distance between the two sewing threads and the seam is equal), the sewing quality and efficiency cannot be guaranteed, and the quality grade and the shelf life of the knitted and woven products are directly affected.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of above-mentioned background art, provide a well minute presser foot that is furnished with ultrashort tang sword, should divide the presser foot to be able to ensure well minute line ball quality of making up and meet the requirements.
The utility model provides a technical scheme is:
A middle dividing presser foot provided with an ultra-short seam allowance knife comprises a connector, a pressing plate and a first elastic element, wherein the connector is fixedly connected with the bottom end of a pressing rod, the pressing plate is hinged with the connector through two hinge lugs at the upper part of the pressing plate, and is provided with a needle hole, and the first elastic element applies force to the connector and the pressing plate respectively; the method is characterized in that: still fix a position the tang sword that is used for imbedding in the seam when making on the clamp plate, the tang sword is located the pinhole front side of clamp plate to forward and down a plurality of distances of outstanding.
The distance is 1-4 mm.
The outer sides of the hinge lugs on the left side and the right side of the pressure plate are respectively provided with a flange strip capable of moving vertically and a second elastic element which is positioned on the hinge lugs and applies downward pressure to the flange strip; the bottom end of the edge blocking strip is 1-2mm lower than the bottom end of the pressing plate.
The edge blocking strips vertically move on the hinge lugs through the guide rail pairs; the guide rail pair comprises a sliding groove which is vertically manufactured on the outer side of the hinge lug, a cover plate which is blocked outside the sliding groove and is fixed with the hinge lug, and a sliding strip which is vertically arranged on the edge blocking strip and can be embedded into the sliding groove in a sliding mode.
The cover plate is vertically fixed on the outer side of the hinge lug.
The first elastic element and the second elastic element are both helical springs.
The utility model has the advantages that: the utility model provides a well minute presser foot can ensure well minute line meeting the requirements of making to ensure product quality's stability and improvement, can also increase substantially work efficiency, reduction in production cost, the practicality is very strong.
Drawings
Fig. 1 is a schematic view of the structure of the present invention.
Fig. 2 is a schematic top view of the present invention.
Fig. 3 is a schematic bottom view of the present invention.
Fig. 4 is a left side view structure diagram of the present invention.
Fig. 5 is a schematic sectional view along a-a in fig. 4.
Fig. 6 is a schematic sectional view of the structure of fig. 4 taken along line B-B.
Fig. 7 is a schematic front view of the connector of the present invention.
Fig. 8 is a front view of the pressing plate of the present invention (i.e., the view of the pressing plate in fig. 4).
Fig. 9 is a schematic top view of the pressing plate according to the present invention.
Fig. 10 is a left side view schematically illustrating the structure of the pressing plate according to the present invention.
fig. 11 is a schematic bottom view of the pressing plate according to the present invention.
Fig. 12 is a front view structure diagram of the edge strip of the present invention.
Fig. 13 is a schematic top view of the edge strip of the present invention.
Fig. 14 is a front view of the medial line in the article of apparel.
Fig. 15 is a bottom view of the medial line in the article of apparel.
FIG. 16 is a schematic view of the engagement of the step racks with the platen.
Detailed Description
The following further description is made with reference to the embodiments shown in the drawings.
The middle dividing presser foot shown in the attached drawing comprises a connector 1 and a presser foot 6 which is hinged with the connector and is provided with a needle hole 6.11 (a hole through which a needle passes during sewing); the upper part of the connector is provided with a hoop 1.2 which is suitable for a needle bar of a sewing machine; the anchor ear is sleeved at the bottom end of the needle bar, and the presser foot can be fastened on the needle bar of the sewing machine by screwing the screw 12 connected with the anchor ear. The upper part of the pressure plate is provided with two hinge lugs 5 which are connected with the pressure plate into a whole and are parallel to each other, and the hinge lugs are provided with pin holes 6.5 which are transversely penetrated; a cavity 5.3 which is communicated from front to back (the left and right directions of figures 1 and 8) and is communicated upwards is also arranged between the two hinge lugs; the lower part 1.1 of the connector (which is prefabricated with a hinge hole 1.11) is inserted into the cavity, and after the hinge pin is transversely inserted, the pressing plate is hinged with the connector into a whole. A first elastic element 13 (preferably a helical spring) is arranged in the cavity and exerts a pressing force vertically upwards against the connection head and vertically downwards against the pressure plate; the bottom end surface of the connector is also provided with an upper convex point 1.2 matched with the elastic element, and the upper surface of the pressing plate is provided with a lower convex point 6.8 matched with the elastic element (the spigot cutter is clearly shown, and the lower convex point is removed in figure 10) so as to ensure that the spiral spring is stably positioned. A barrier strip 6.1 which is connected with the two hinge lugs into a whole is manufactured at the rear side (the left side of the figures 1 and 8) of the hinge lugs; the barrier strip is transversely arranged between the two hinged lugs and is matched with a boss 1.3 at the rear end of the connector, so that the continuous swinging of the connector can be limited (the clockwise swinging of the connector is limited, see fig. 5). The cloth feeding teeth 21 are periodically swung upwards to protrude out of the sewing table 20, and cooperate with the pressure plate to clamp and push the fabric on the sewing table (see fig. 16).
The above is a conventional structure of a presser foot of a sewing machine.
The utility model discloses an improvement is: a seam allowance knife 7 embedded in a seam during sewing is also positioned on the pressing plate; as can be seen from the figure: the tang sword is vertical fixed (recommend welded fastening) the not cutting edge of a knife or a sword of opening on the horizontal bar of pinhole front side, and this tang sword is outstanding a plurality of distances (as recommending, a plurality of distances are 1-4mm) toward the place ahead of horizontal bar and below to in the embedding seam when sewing of doing benefit to. The length of the knife is only 3-5mm, and the width is 2-3mm, so the ultra-short seam allowance knife is provided.
The outer sides of the hinging lugs at the left side and the right side (the upper side and the lower side in the figure 2) of the pressing plate are respectively provided with a flange strip 8 which can vertically move (the upper direction and the lower direction in the figure 1) and a second elastic element 11 which is positioned on the hinging lugs and applies downward pressure to the flange strip; after the pressure of the second elastic element is applied, the bottom end of the flange strip is 1-2mm lower than the bottom end of the pressing plate (namely, the pressing plate is lifted up by 1-2mm relatively).
The vertical movement of the edge blocking strips on the hinge lugs is realized through the guide rail pair; in the guide rail pair, a sliding groove (rectangular sliding groove) 5.2 which is vertically arranged is manufactured on the outer side of a hinge lug, a sliding strip 2 which is suitable for the size of the sliding groove is embedded into the sliding groove in a sliding mode, and a cover plate 3 covers the outer portion of the sliding groove (blocks the sliding strip to enable the sliding strip not to slip from the sliding groove) and is fixed on the outer side of the hinge lug through a screw 10 to ensure that the sliding strip can only vertically slide up and down. It can be seen in the figure that: the sliding strip and the flange strip are vertically arranged and the bottom end of the sliding strip is connected with the flange strip into a whole, so that the flange strip can vertically move on the hinge lug through the sliding strip (the hinge lug is provided with a yielding groove 9 which is beneficial to the vertical movement of the flange strip). As can be seen from fig. 16: the step feeding rack is arranged corresponding to the pressure plate and is periodically in abutting fit with the pressure plate without contacting with the edge blocking strip.
The second elastic element is preferably a coil spring; one end 11.2 of the spiral spring is inserted into a hole (a prefabricated hole; omitted in the drawing) of the hinge lug and is welded and fixed (see figure 12), and the other end 11.2 of the spiral spring is inserted into a matching hole 2.1 (a prefabricated hole at the top of the slide bar) at the top of the slide bar and is then welded and fixed; thereby having the potential to exert downward pressure on the slide.
The utility model discloses a theory of operation is: the utility model discloses install earlier on the sewing machine depression bar during the use to the inspection is adjusted and is ensured that the tang sword is located the middle part of two eedles (two-needle sewing machine). When sewing, the second elastic element is compressed under the pressure action of the pressure rod to enable the pressure plate to sink (the edge blocking strips on the two sides of the pressure dividing and pressing foot move upwards), so that the bottom surface of the pressure plate can directly contact the fabric to be sewn; the cloth feeding rack periodically swings upwards and is matched with the pressing plate in a pressing mode to push the fabric; the sinking of the pressing plate enables the seam allowance knives protruding forwards and downwards to be embedded into a seam (a part where the two fabrics are connected through the sewing thread) and to be always embedded into the seam for guiding in the sewing process, so that the sewing thread stitches sewn by the two machine needles keep the same distance with the sewing thread.
Finally, it should be noted that the above-mentioned embodiments illustrate only specific embodiments of the invention. Obviously, the present invention is not limited to the above embodiments, and many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (6)
1. A middle dividing presser foot provided with an ultra-short seam allowance knife comprises a connector (1) fixedly connected with the bottom end of a press rod, a press plate (6) which is hinged with the connector through two hinge lugs (5) at the upper part of the press plate and is provided with a needle hole (6.11), and a first elastic element (13) which applies force to the connector and the press plate respectively; the method is characterized in that: still fix a position on the clamp plate and be used for embedding tang sword (7) in the seam when sewing, tang sword is located the pinhole front side of clamp plate to forward and down a plurality of distances of outstanding.
2. The middle pressure dividing foot with an ultra-short seam allowance knife according to claim 1, characterized in that: the distance is 1-4 mm.
3. The middle pressure dividing foot with an ultra-short seam allowance knife as claimed in claim 2, wherein: the outer sides of the hinging lugs at the left side and the right side of the pressing plate are respectively provided with a flange strip (8) capable of moving vertically and a second elastic element (11) which is positioned on the hinging lugs and applies downward pressure to the flange strip; the bottom end of the edge blocking strip is 1-2mm lower than the bottom end of the pressing plate.
4. The middle pressure dividing pin with an ultra-short seam allowance knife as claimed in claim 3, wherein: the edge blocking strips vertically move on the hinge lugs through the guide rail pairs; the guide rail pair comprises a sliding groove (5.2) which is vertically manufactured on the outer side of the hinge lug, a cover plate (3) which blocks the outer part of the sliding groove and is fixed with the hinge lug, and a sliding strip (2) which is vertically arranged on the edge blocking strip and can be embedded into the sliding groove in a sliding mode.
5. The middle pressure dividing foot with an ultra-short seam allowance knife according to claim 4, characterized in that: the cover plate is vertically fixed on the outer side of the hinge lug.
6. The middle pressure dividing foot with an ultra-short seam allowance knife according to claim 5, characterized in that: the first elastic element and the second elastic element are both helical springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240418.8U CN209798256U (en) | 2019-02-26 | 2019-02-26 | Middle dividing presser foot with ultra-short seam allowance knife |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920240418.8U CN209798256U (en) | 2019-02-26 | 2019-02-26 | Middle dividing presser foot with ultra-short seam allowance knife |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209798256U true CN209798256U (en) | 2019-12-17 |
Family
ID=68822913
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920240418.8U Withdrawn - After Issue CN209798256U (en) | 2019-02-26 | 2019-02-26 | Middle dividing presser foot with ultra-short seam allowance knife |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209798256U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706633A (en) * | 2019-02-26 | 2019-05-03 | 达利(中国)有限公司 | A kind of middle partial pressure foot equipped with ultrashort seam allowance knife |
-
2019
- 2019-02-26 CN CN201920240418.8U patent/CN209798256U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109706633A (en) * | 2019-02-26 | 2019-05-03 | 达利(中国)有限公司 | A kind of middle partial pressure foot equipped with ultrashort seam allowance knife |
| CN109706633B (en) * | 2019-02-26 | 2024-02-13 | 达利(中国)有限公司 | Middle pressure dividing foot with ultra-short seam allowance knife |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240213 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20191217 Effective date of abandoning: 20240213 |