TWI503461B

TWI503461B - A presser foot device and a sewing machine comprising the device

Info

Publication number: TWI503461B
Application number: TW101117533A
Authority: TW
Inventors: Carlo Guerreschi
Original assignee: Vi Be Mac Spa
Priority date: 2011-05-20
Filing date: 2012-05-17
Publication date: 2015-10-11
Also published as: KR20130027986A; CN102787455B; CN102787455A; RU2012120649A; TW201247956A; BR102012012045B1; KR101840882B1; ITVR20110110A1; BR102012012045A2; EP2535449A1; EP2535449B1; RU2540394C2

Description

壓腳裝置及包含所述裝置的縫紉機Presser foot device and sewing machine including the same

本發明大體上涉及一種壓腳裝置和包含所述裝置的縫紉機。更詳細地，本發明涉及壓腳裝置和帶壓腳板的縫紉機，壓腳板適於遵循將要縫紉的布塊的厚度的變化。The present invention generally relates to a presser foot device and a sewing machine incorporating the same. More particularly, the present invention relates to a presser device and a sewing machine with a presser foot adapted to follow variations in the thickness of the panel to be sewn.

眾所周知，在工業部門完成將兩個或多個織物製成的工件縫製在一起的機械縫紉的縫紉機經常是基於不同的結構工藝，根據要完成的不同的縫紉操作而設計的。It is well known that mechanical sewing machines that sew together two or more fabric-made workpieces in the industrial sector are often designed based on different structural processes, depending on the different sewing operations to be performed.

比如，由一個或多個針組成的單元被認為是用於縫紉如牛仔褲、一般的褲子、各種外衣、襯衣、如氣袋等工藝薄紗等的織物工件。For example, a unit composed of one or more needles is considered to be a fabric workpiece for sewing such as jeans, general pants, various outer garments, shirts, process gauze such as air bags, and the like.

最傳統的構造中，所述方案由基座和上頭部組成，基座和上部的頭部通過一個臂和一根柱子相互連接。用線穿透將被縫紉的織物的一個或多個擺動針放置在頭部，而基座具有傳送將被縫紉的織物工件傳送裝置，並包含與針合作形成縫線的機構。In the most conventional configuration, the solution consists of a base and an upper head, the base and the upper head being interconnected by an arm and a post. One or more oscillating needles that thread the woven fabric are placed in the head with a thread, and the pedestal has a fabric workpiece transport that conveys the stitch to be sewn, and includes a mechanism that cooperates with the needle to form a suture.

另外，為了獲得好的縫紉，頭部具有壓腳板，靠近一個或多個針，使得織物保持壓在基體上。In addition, in order to achieve good sewing, the head has a presser plate adjacent one or more needles so that the fabric remains pressed against the substrate.

在最傳統的構造中，壓腳板鉸接在使壓腳板保持在其位置上的壓腳杆上，且常常允許壓腳板隨著將要縫製的織物或材料的進展而擺動。In the most conventional configuration, the presser foot is hinged to the presser foot that holds the presser foot in place and often allows the presser foot to oscillate as the fabric or material to be sewn progresses.

在織物的厚度有小幅變化地情況下，壓腳板也隨著變化，以避免壓腳板的卡住。In the case of a slight change in the thickness of the fabric, the presser foot also changes to avoid jamming of the presser foot.

在將要縫製的織物有大幅度的厚度變化的情況下，比如由於兩塊或更多塊布塊的疊合，壓腳板適當地遵循織物的表面有困難，這使得縫合線有缺陷，並引起織物片的疊合不完全和隨之發生的織物邊緣不重合，損害如此獲得的服裝工件的品質。In the case where the fabric to be sewn has a large thickness variation, such as due to The stacking of two or more pieces of cloth, the footboards having difficulty in properly following the surface of the fabric, which makes the sutures defective, and causes the incomplete folding of the fabric sheets and the consequent non-coincidence of the fabric edges, damage The quality of the garment workpiece thus obtained.

比如，當壓腳板必須遵循厚度減小時，得出的縫合線是不規則的，縫線加長。For example, when the presser foot must follow a reduced thickness, the resulting stitch is irregular and the stitch is lengthened.

既然壓腳板不能遵循將要縫製的織物的表面，壓腳板必須延長其路線並從織物上抬起片刻，使得壓腳板不能完全在壓力下將織物保持在基體上。Since the presser foot cannot follow the surface of the fabric to be sewn, the presser foot must extend its course and lift it from the fabric for a moment so that the presser foot cannot hold the fabric to the substrate completely under pressure.

在利文獻EP2233628A2和JP55086675中公開了一種由突出的彈性機構組成的壓腳板，這種壓腳板允許遵循織物厚度的變化。但是，這樣的系統不允許檢測織物厚度的變化並選擇和控制織物上的壓腳板的壓力。A presser foot plate consisting of a protruding elastic mechanism which allows a change in the thickness of the fabric to be observed is disclosed in the documents EP 2 233 628 A2 and JP 55 508 675. However, such systems do not allow for the detection of variations in fabric thickness and the selection and control of the pressure of the presser plates on the fabric.

在專利文獻JP5161771中，公開了一種壓腳板的控制裝置，其中感測器允許檢測壓腳板的傾斜的變化。這樣的系統根據所述壓腳板的傾斜度，通過作用於鉸接在壓腳板上的壓腳杆，允許而變化壓腳板的壓力。不過相對於壓腳杆和壓腳板的連接軸，這種特性不能允許控制壓腳板的不同部位的壓力。In the patent document JP5161771, a control device for a presser foot is disclosed, wherein the sensor allows detection of a change in the inclination of the presser foot. Such a system allows the pressure of the presser foot to be varied by acting on a presser foot hinged to the presser foot according to the inclination of the presser foot. However, this feature does not allow control of the pressure on different parts of the presser foot relative to the connecting shaft of the presser foot and the presser foot.

專利文獻US2009/056607，為了壓住壓腳板的前部，公開了一種彈性元件作用於其上的壓腳板。彈性元件可以被啟動或可以被抬起，但是它不能以持續的方式控制在壓腳板進而在織物上的壓力。並且，壓腳板沒有展示任何檢測它的傾斜度變化的裝置。In the patent document US 2009/056607, in order to press the front part of the presser foot, a presser foot on which the elastic element acts is disclosed. The elastic element can be activated or can be lifted, but it does not control the pressure on the presser foot and thus the fabric in a continuous manner. Also, the presser foot does not show any means to detect its change in inclination.

本發明的一個目的是通過實現一個織物壓腳裝置和縫紉機消除上述提到的缺點及其它缺點，通過這些使獲得具有完美品質的縫合線的服裝工件成為可能。SUMMARY OF THE INVENTION One object of the present invention is to eliminate the above-mentioned disadvantages and other disadvantages by implementing a fabric presser device and a sewing machine by which a garment workpiece having a perfect quality of suture is obtained.

本發明的另一個目的是實現一個織物壓腳裝置和縫紉機，通過這樣使得獲得一條的織物片完美疊合的縫合線成為可能，在織物的邊緣沒有不期望的不重合。Another object of the present invention is to realize a fabric presser device and a sewing machine, by which it is possible to obtain a perfect stitch of a fabric piece, which is woven. There are no undesired misalignments at the edges of the object.

本發明的另一個目的是實現一個織物壓腳裝置和縫紉機，其中，壓腳裝置以更高的精度隨著已加工織物的厚度的變化而變化。Another object of the present invention is to achieve a fabric presser device and a sewing machine in which the presser foot device is varied with higher precision as the thickness of the processed fabric changes.

本發明的另一個目的是實現一個織物壓腳裝置和縫紉機，允許在帶有相同長度的縫合線的一塊或多塊織物上縫紉，甚至在已加工的織物上存在厚度變化時。Another object of the present invention is to achieve a fabric presser device and sewing machine that allows for sewing on one or more fabrics of sutures of the same length, even when thickness variations are present on the processed fabric.

根據本發明，通過可以與縫紉機配合的壓腳裝置，縫紉機帶有控制系統並包括頭部和將要縫製的工件置於其上的基座，上述的目的和其他目的是可實現的。壓腳裝置包括與頭部匹配的壓腳桿和壓腳板組成，壓腳板通過樞軸鉸接在所述壓腳桿上，使得壓腳板相對於壓腳桿傾斜，為了使工件在壓力下保持在基座上，所述壓腳板適合於推動工件。According to the present invention, the above object and other objects are attained by a presser foot device which can be engaged with a sewing machine having a control system and including a head and a base on which a workpiece to be sewn is placed. The presser foot device comprises a presser foot bar and a presser foot plate matched with the head, the presser foot plate being hinged on the presser foot bar by a pivot, so that the presser foot plate is inclined with respect to the presser foot bar, in order to keep the workpiece under pressure under the base The presser foot is adapted to push the workpiece.

特別是，壓腳裝置的特徵在於包括檢測壓腳板相對於壓腳桿的傾斜度的檢測機構和在壓腳板上適於啟動的壓制機構。In particular, the presser foot device is characterized by comprising a detecting mechanism for detecting the inclination of the presser foot with respect to the presser foot and a pressing mechanism adapted to be activated on the presser foot.

檢測壓腳板相對於壓腳桿，進而相對於縫紉機的基座的傾斜度的可能性允許檢測在已加工的工件上厚度的變化以及所述變化的強度。因此，通過檢測所述厚度的變化，縫紉機的控制系統可以啟動相同縫紉機的其他裝置，如作用於壓腳桿上的壓制機構。The possibility of detecting the inclination of the presser foot relative to the presser foot, and thus the base of the sewing machine, allows the detection of the change in thickness on the machined workpiece and the strength of said change. Therefore, by detecting the change in the thickness, the sewing machine control system can activate other devices of the same sewing machine, such as a pressing mechanism acting on the presser foot.

根據本發明，壓腳裝置的檢測機構適於更簡便地檢測壓腳板傾斜度的變化，無論傾斜角度多大，以確定厚度變化，無論織物的質地怎樣。According to the present invention, the detecting mechanism of the presser foot device is adapted to more easily detect the change in the inclination of the presser foot, regardless of the inclination angle, to determine the thickness variation regardless of the texture of the fabric.

壓制機構適於在壓腳板上而不是樞軸上啟動，並包括獨立於壓腳板的傾斜度的變化適於以連續的方式改變壓腳板上的壓力的壓力控制機構。以這樣的方式，壓制機構作用於其上並放置在將壓腳板鉸接在壓腳桿上的樞軸的前面或後面的壓腳板的部分，在縫紉階段可以壓制織物。當將要縫製的織物的厚度減小時這個裝置是非常有用的。這樣，不像現有技術的系統中壓腳板幾乎懸在具有減小的厚度的織物上，根據本發明，壓腳板隨著織物的構造傾斜，並允許縫紉和高品質的縫合線，縫合線上縫線的尺寸是不變的。The pressing mechanism is adapted to be activated on the presser foot rather than the pivot and includes a pressure control mechanism adapted to vary the pressure on the presser foot in a continuous manner independent of the change in inclination of the presser foot. In this manner, the pressing mechanism acts on it and is placed on the portion of the presser plate that is hinged to the front or rear of the pivot of the presser foot on the presser foot, and the fabric can be pressed during the sewing phase. When the thickness of the fabric to be sewn is reduced Setting is very useful. Thus, unlike prior art systems in which the presser foot is almost suspended from a fabric having a reduced thickness, according to the present invention, the presser foot is tilted with the construction of the fabric and allows for sewing and high quality stitching, stitching on the stitching line. The size is constant.

此外，壓力控制機構允許控制和改變壓腳板在織物上的壓力，儘管壓腳板不改變它的傾斜度。In addition, the pressure control mechanism allows control and variation of the pressure of the presser foot on the fabric, although the presser foot does not change its inclination.

更有利地，檢測機構包括一個與縫紉機的控制系統連接的感測器和一個連接壓腳板並作用於感測器上的鉸鏈機構，因此感測器檢測到壓腳板傾斜度的變化。這樣，壓腳板的擺動運動使得鉸鏈機構投入運動，鉸鏈結構接著作用於感測器。因此，感測器可以放在一個不妨礙縫紉工作的安全位置。More advantageously, the detection mechanism includes a sensor coupled to the sewing machine control system and a hinge mechanism that couples the presser plates and acts on the sensor such that the sensor detects a change in the inclination of the presser foot. Thus, the oscillating motion of the presser foot causes the hinge mechanism to be put into motion, and the hinge structure is used for the sensor. Therefore, the sensor can be placed in a safe position that does not interfere with the sewing work.

特別地，根據本發明，壓腳裝置的鉸鏈機構可以包括：一臂，一端固定在壓腳板上，並且另一端包括一個圓柱體；一傾斜元件，鉸接在縫紉機的頭部；一叉狀元件，一端固定在傾斜元件上，並且另一端包括一個臂的圓柱體在其中運動的底座；一平板，固定在傾斜元件上並佈置在感測器的旁邊。In particular, according to the present invention, the hinge mechanism of the presser foot device may include: an arm having one end fixed to the presser foot plate and the other end including a cylinder; a tilting member hinged to the head of the sewing machine; and a fork member One end is fixed to the tilting element, and the other end includes a base in which the cylinder of one arm moves; a flat plate is fixed to the tilting element and disposed beside the sensor.

通過這種構造和結構，通過改變壓腳板的傾斜度，臂可以旋轉並引起圓柱體在叉狀元件作為導向獲得的底座中平移，因此其引起傾斜元件的旋轉，為了朝感測器移動平板或將平板從感測器移走。With this configuration and construction, by varying the inclination of the presser foot, the arm can rotate and cause the cylinder to translate in the base obtained by the forked element as a guide, thus causing the tilting element to rotate, in order to move the plate towards the sensor or Remove the plate from the sensor.

另外，傾斜元件可以包括一個活塞，活塞包括一個一頭固定在叉狀元件上的桿和桿在其中滑動的筒，所述筒的一端鉸接在縫紉機的頭部上。Alternatively, the tilting member may comprise a piston comprising a rod with a rod fixed to the fork member and a rod in which the rod slides, one end of the barrel being hinged to the head of the sewing machine.

這樣，也包括通過縫紉機的控制系統適當控制的所述活塞的鉸鏈裝置作為壓制機構，如果所述控制系統判斷其必要，壓制方式可以被啟動，所述控制系統由使用者適當地設置。Thus, the hinge device of the piston appropriately controlled by the control system of the sewing machine is also included as a pressing mechanism, and if the control system judges that it is necessary, the pressing side The formula can be activated, and the control system is appropriately set by the user.

換句話說，鉸鏈裝置有雙重作用：當活塞桿被釋放在活塞體內平移時，鉸鏈裝置啟動感測器並作為感測器機構起作用；當桿處於活塞體外時，鉸鏈機構在壓力下將壓腳板放置在一部分上，這部分不同於壓腳桿可能作用的一部分。In other words, the hinge device has a dual function: when the piston rod is released for translation in the piston body, the hinge device activates the sensor and acts as a sensor mechanism; when the rod is outside the piston body, the hinge mechanism will be pressed under pressure The foot plate is placed on a portion that is different from the portion of the presser foot that may be acting.

有利地，叉狀元件可以包括兩個臂，兩個臂之間具有臂的圓柱體在其中移動的底座。Advantageously, the forked element may comprise two arms with a base in which the cylinder of the arm moves between the two arms.

本發明的目的也在於其目的和優點也通過包括作為之前概括限定的壓腳板的縫紉機達到。It is also an object of the invention that its objects and advantages are also achieved by a sewing machine comprising a presser foot as defined in the foregoing.

另外，本發明的目的和優點也通過縫紉機對具有厚度變化的織物進行縫製的方法來實現，縫紉機包括通過樞軸鉸接在壓腳板上的壓腳桿，樞軸將壓腳板分成前部和後部，所述前部比後部先接觸織物。這種方法的特徵在於壓腳板的傾斜度及/或壓腳板傾斜度的變化的檢測，和獨立於壓腳板(26)的傾斜度及/或壓腳板(26)的傾斜度變化以及織物的厚度的變化，在壓力下以可調整的方式放置所述壓腳板的前部。In addition, the objects and advantages of the present invention are also achieved by a sewing machine for sewing a fabric having a thickness variation, the sewing machine comprising a presser foot hingedly hinged to the presser foot plate, the pivot dividing the presser foot into the front and the rear, The front portion contacts the fabric first than the rear portion. This method is characterized by the detection of the inclination of the presser foot and/or the change in the inclination of the presser foot, and the inclination independent of the presser foot (26) and/or the inclination of the presser foot (26) and the thickness of the fabric. The change is to place the front portion of the presser foot in an adjustable manner under pressure.

雖然現有技術的縫紉機的縫線是不一致的，所述措施允許縫線的長度保持規則和一致，即使將要縫製的織物的厚度減小。這樣，獲得一條縫合線和一件織物片精確疊合的高品質的服裝工件成為可能，在織物的邊緣沒有不期望的不重合。另外，不僅當織物的厚度變化，因此當壓腳板改變其傾斜度時，而且在織物厚度變化之前或之後，控制和改變壓腳板的前部的壓力成為可能。Although the stitching of the prior art sewing machine is inconsistent, the measure allows the length of the stitch to be kept regular and uniform even if the thickness of the fabric to be sewn is reduced. In this way, it is possible to obtain a high quality garment workpiece in which a suture and a piece of fabric are precisely superposed, without undesired misalignment at the edges of the fabric. In addition, not only when the thickness of the fabric changes, it is possible to control and change the pressure of the front portion of the presser foot when the presser foot changes its inclination, and before or after the change in the thickness of the fabric.

以下提供的具體描述和附圖所示非作為限制性示例，但可以更好地理解本發明的特徵和細節。The detailed description provided below and the accompanying drawings are not to be considered as limiting, but the features and details of the invention may be better understood.

關於附圖，特別在圖1中，符號10表示包括基座12和頭部 14的縫紉機，基座和頭部通過立柱16和臂18連相互接。With respect to the drawings, particularly in Figure 1, reference numeral 10 denotes a base 12 and a head. The sewing machine of 14, the base and the head are connected to each other through the column 16 and the arm 18.

基座12包括針板22放置其上的主體20。將要被縫製的織物可以在所述針板上滑動。The base 12 includes a body 20 on which the needle plate 22 is placed. The fabric to be sewn can be slid on the needle board.

如圖2-7所示，頭部14包括可在豎直方向上移動的壓腳桿24，壓腳板26的一端通過螺釘28鉸接在壓腳桿的下端。臂30固定在壓腳板26的另一端並豎向延伸。As shown in Figures 2-7, the head 14 includes a presser foot bar 24 that is movable in a vertical direction, and one end of the presser foot plate 26 is hinged to the lower end of the presser foot bar by a screw 28. The arm 30 is fixed to the other end of the presser foot 26 and extends vertically.

圓柱體32固定在臂30的上部自由端並沿水準和垂直方向向臂30延伸。The cylinder 32 is fixed to the upper free end of the arm 30 and extends toward the arm 30 in the horizontal and vertical directions.

活塞34的一端通過樞軸33鉸接在頭部14上，使得活塞34相對於頭部14自由旋轉。One end of the piston 34 is hinged to the head 14 by a pivot 33 such that the piston 34 is free to rotate relative to the head 14.

活塞34受控於控制工作的合適的控制系統，比如，通過應用活塞34自身內部的壓力，並使得活塞桿36出去或讓活塞桿36相對于活塞34自由移動。The piston 34 is controlled by a suitable control system that controls operation, such as by applying pressure within the piston 34 itself and causing the piston rod 36 to move out or to freely move the piston rod 36 relative to the piston 34.

叉狀元件40和平板38受桿36的自由端的限制，平板38與桿36成直角。The fork member 40 and the plate 38 are constrained by the free end of the rod 36 which is at right angles to the rod 36.

叉狀元件40具有兩個臂42形成一個底座，圓柱體32可以向兩個臂42的分支滑動以碰到分支。這樣，叉狀元件40對圓柱體32起到導向作用。The fork member 40 has two arms 42 forming a base, and the cylinder 32 can slide toward the branches of the two arms 42 to hit the branches. Thus, the fork member 40 guides the cylinder 32.

頭部14包括感測器44，比如當通過旋轉活塞34移動平板38時，一個近程式感測器檢測平板38的附近。感測器44通過帶有控制系統的纜線46傳遞資訊。The head 14 includes a sensor 44, such as when the plate 38 is moved by the rotary piston 34, a proximity sensor detects the vicinity of the plate 38. Sensor 44 communicates information via cable 46 with a control system.

關於圖3-7，根據本發明，如下描述壓腳板的控制裝置的運行。With respect to Figures 3-7, in accordance with the present invention, the operation of the control device of the presser foot is described as follows.

如圖3所示，將要縫製的工件50放在基座12上，工件包括其上放置有織物薄片54的基座織物52，將要縫製的工件50在疊合有織物薄片的部分較厚。As shown in Fig. 3, the workpiece 50 to be sewn is placed on a base 12 which includes a base fabric 52 on which a fabric sheet 54 is placed, and the workpiece 50 to be sewn is thicker at a portion where the fabric sheet is laminated.

當臂30保持叉狀元件40，並且因此，通過圓柱體32和臂42 之間的形式連接使得活塞34相對於頭部14傾斜時，壓腳板26通過壓腳桿24保持在適當位置，並且壓腳板放置在基座織物52上。When the arm 30 holds the fork-like element 40, and thus, through the cylinder 32 and the arm 42 When the form connection is such that the piston 34 is tilted relative to the head 14, the presser foot 26 is held in place by the presser foot 24 and the presser foot is placed on the base fabric 52.

在構造上，平板38沒有放置在感測器44的範圍內，因此，感測器44不檢測平板38的存在。因此，控制系統不作用於活塞34，活塞保持活塞桿36在其自身的內部自由移動。Structurally, the plate 38 is not placed within the scope of the sensor 44 and, therefore, the sensor 44 does not detect the presence of the plate 38. Therefore, the control system does not act on the piston 34, which keeps the piston rod 36 free to move within its own interior.

當工件前進時，如圖4所示，工件50被縫製並在基座12上移動，使壓腳板26接合織物薄片54。這樣，為了使織物薄片54無障礙地前進，壓腳板26必須繞螺釘28相對於壓腳桿24旋轉。As the workpiece advances, as shown in FIG. 4, the workpiece 50 is sewn and moved over the base 12, causing the presser foot 26 to engage the fabric sheet 54. Thus, in order to advance the fabric sheet 54 unobstructed, the presser foot 26 must be rotated about the screw 28 relative to the presser foot 24.

當壓腳板26的傾斜度變化時，限制在壓腳板上的臂30也被迫旋轉，並使得圓柱體32在叉狀元件40的兩個臂42之間形成的底座內上升，並撞擊在臂42的分支上。When the inclination of the presser foot 26 changes, the arm 30 restrained on the presser foot is also forced to rotate, and the cylinder 32 rises in the base formed between the two arms 42 of the fork member 40 and strikes the arm. On the branch of 42.

這樣，通過再次***活塞桿36，叉狀元件40順時針旋轉，同時迫使活塞34順時針旋轉。Thus, by reinserting the piston rod 36, the fork member 40 rotates clockwise while forcing the piston 34 to rotate clockwise.

活塞34的旋轉帶動感測器44附近的平板38，感測器44將資訊傳遞給控制系統。Rotation of the piston 34 drives a plate 38 adjacent the sensor 44, which transmits information to the control system.

這樣，控制系統得知壓腳板26即將從基座織物52上移到厚度增加的織物薄片54上的情況，使得啟動縫紉機上其他元件成為可能，比如開始數縫紉機在織物薄片54上形成的縫合線或縫製片段。Thus, the control system knows that the presser foot 26 is about to be moved from the base fabric 52 to the increased thickness of the fabric sheet 54, making it possible to activate other components on the sewing machine, such as starting the stitching of the sewing machine on the fabric sheet 54. Or sewing a piece.

如圖5所示，當壓腳板26克服基座織物52和織物薄片54之間的坡度，並再次水準時，通過連接圓柱體32和臂42使相對於頭部14的傾斜角度增長，臂30使活塞34逆時針旋轉。As shown in FIG. 5, when the presser foot 26 overcomes the slope between the base fabric 52 and the fabric sheet 54, and is again leveled, the angle of inclination relative to the head 14 is increased by connecting the cylinder 32 and the arm 42, the arm 30 The piston 34 is rotated counterclockwise.

控制系統得知現在壓腳板26在織物薄片54上的情況。The control system knows that the presser foot plate 26 is now on the fabric sheet 54.

如圖6所示，當加工進行，由縫紉機10起作用所確定的縫線或縫紉片段的數量已經得到時，所述數量由使用者基於縫紉要求和織物薄片54的長度確定，壓腳板26接近織物薄片54的邊緣，因此壓腳板26即將下降到基座織物52上。As shown in Fig. 6, when the processing is performed, the number of stitches or stitches determined by the sewing machine 10 has been obtained, the number is determined by the user based on the sewing requirements and the length of the fabric sheet 54, and the presser plate 26 is close. The edge of the fabric sheet 54, Thus the presser foot 26 is about to descend onto the base fabric 52.

因為壓腳板26已經到達這個位置，控制系統啟動活塞34。Since the presser foot 26 has reached this position, the control system activates the piston 34.

當活塞34使得活塞桿36出去時，活塞34引起叉狀元件40靠近圓柱體32，使得圓柱體32壓住工件50，並且活塞34將這個壓力傳遞給壓腳板26，因此壓腳板用一個更高的壓力壓住織物薄片54。When the piston 34 causes the piston rod 36 to exit, the piston 34 causes the fork member 40 to approach the cylinder 32, causing the cylinder 32 to press against the workpiece 50, and the piston 34 transmits this pressure to the presser plate 26, thus using a higher presser plate The pressure presses against the fabric sheet 54.

當壓腳板的頭部超過織物薄片54並下降到基座織物52上，強迫壓腳板繞螺釘28突然旋轉，允許壓腳板26以最好的方式遵循工件50的厚度變化時，活塞34強加的壓力保持。When the head of the presser foot exceeds the fabric sheet 54 and descends onto the base fabric 52, the forcing footplate is suddenly rotated about the screw 28, allowing the presser foot 26 to follow the pressure imposed by the piston 34 in a manner that best follows the thickness variation of the workpiece 50. maintain.

當壓腳板再次在基座織物52上處於水準位置時，與壓腳板26作為整體的臂30隨後旋轉，迫使活塞桿36加壓。When the presser foot is again in the level position on the base fabric 52, the arm 30 as a whole with the presser foot 26 is subsequently rotated, forcing the piston rod 36 to pressurize.

由活塞桿36的加壓引起的活塞34的過壓通知控制系統，隨後控制系統釋放活塞34，使得活塞桿自由移動。The overpressure of the piston 34 caused by the pressurization of the piston rod 36 informs the control system that the control system then releases the piston 34 so that the piston rod is free to move.

根據本發明的一種變體，縫紉機110可以包括頭部114，而頭部包括壓力控制裝置116之類的裝置，比如，作用於壓腳桿124上的充氣活塞，類似於上述的壓腳桿24，使得鉸接在所述壓腳桿124上的壓腳板可以用期望的力量被壓在將要縫製的布料上。In accordance with a variation of the present invention, the sewing machine 110 can include a head 114 that includes a device such as a pressure control device 116, such as an inflatable piston that acts on the presser foot 124, similar to the presser foot 24 described above. The presser foot hinged to the presser foot 124 can be pressed against the fabric to be sewn with a desired force.

有利地，裝置116可以通過基於感測器44的上述的檢測的控制系統啟動，比如，當壓腳板放在更厚的織物上時，為了進一步使加工容易並獲得更好的縫紉，通過增大壓腳桿124的壓力。Advantageously, the device 116 can be activated by a control system based on the above-described detection of the sensor 44, such as when the presser foot is placed on a thicker fabric, in order to further facilitate processing and achieve better sewing, by increasing The pressure of the presser foot 124.

正如所描述的壓腳板的控制裝置有優點，即它以最好的方式監視正在加工的織物的厚度變化，甚至當由於在從大的厚度到小的厚度的下降開始之前壓腳板載入，變化是可觀的和/或突然時，這在現有技術的縫紉機是不會發生的。因此，在更多的織物疊合，無論疊合的織物的數量、最後的厚度和相關的厚度變化如何的情況下，如所述的壓腳板的控制裝置允許得到更好地縫紉。通過合適的軟體，使用者預先設定並通過縫紉機的控制系統的控制，調整自動發生。從而，無論何時織物的數量和相關的厚度發生變化，使用者不必校準壓腳裝置和縫紉機。本部門的技術人員可以構思如本發明的保護範圍包括可考慮的改變和變體。比如，無論控制系統如何，根據其他參數而不是縫紉機加工的縫線或縫紉片段的數量，活塞桿壓在限制於壓腳板上的臂上的活塞可以保持在壓力下。As described, the control device for the presser foot has the advantage that it monitors the thickness variation of the fabric being processed in the best possible manner, even when the presser foot is loaded due to the drop from a large thickness to a small thickness. This is considerable and/or sudden, which does not occur with prior art sewing machines. Thus, in the case of more fabric overlays, regardless of the number of laminated fabrics, the final thickness and the associated thickness variations, the control device of the presser foot as described allows for better sewing. Through Appropriate software, the user presets and controls the sewing machine's control system, and the adjustment happens automatically. Thus, the user does not have to calibrate the presser foot device and the sewing machine whenever the number of fabrics and the associated thickness change. Those skilled in the art will recognize that the scope of the invention includes variations and modifications that may be considered. For example, regardless of the control system, depending on other parameters than the number of stitches or stitches machined by the sewing machine, the piston rod can be held under pressure on the arm limited to the arm of the presser foot.

10‧‧‧縫紉機10‧‧‧Sewing machine

12‧‧‧基座12‧‧‧ Pedestal

14‧‧‧頭部14‧‧‧ head

16‧‧‧立柱16‧‧‧ column

18‧‧‧臂18‧‧‧ Arm

20‧‧‧主體20‧‧‧ Subject

22‧‧‧針板22‧‧‧ needle board

24‧‧‧壓腳桿24‧‧‧ Presser bar

26‧‧‧壓腳板26‧‧‧Foot plate

28‧‧‧樞軸、螺釘28‧‧‧Pivot, screw

30‧‧‧臂30‧‧‧ Arm

32‧‧‧圓柱體32‧‧‧Cylinder

33‧‧‧樞軸33‧‧‧ pivot

34‧‧‧傾斜元件、活塞34‧‧‧ Tilting elements, pistons

36‧‧‧桿36‧‧‧ rod

38‧‧‧平板38‧‧‧ tablet

40‧‧‧叉狀元件40‧‧‧fork components

42‧‧‧臂42‧‧‧ Arm

44‧‧‧感測器44‧‧‧ Sensor

46‧‧‧纜線46‧‧‧ cable

50‧‧‧工件50‧‧‧Workpiece

52‧‧‧織物52‧‧‧ fabric

54‧‧‧織物簿片54‧‧‧ Fabrics

110‧‧‧縫紉機110‧‧‧Sewing machine

114‧‧‧頭部114‧‧‧ head

116‧‧‧壓力控制裝置116‧‧‧ Pressure control device

124‧‧‧壓腳桿124‧‧‧Pressure rod

圖1是根據本發明，在靜止狀態的縫紉機的軸測頂視圖；圖2是圖1的細部構造圖；圖3-7是在縫製具有厚度變化的織物時連續工作階段的縫紉機的側視圖；圖8是本發明的一個變體的縫紉機的軸測俯視圖。1 is a perspective view of a sewing machine in a stationary state according to the present invention; FIG. 2 is a detailed structural view of FIG. 1; and FIG. 3-7 is a side view of the sewing machine in a continuous working stage when sewing a fabric having a thickness variation; Figure 8 is a perspective view of a sewing machine of a variation of the present invention.

12‧‧‧基座12‧‧‧ Pedestal

14‧‧‧頭部14‧‧‧ head

22‧‧‧針板22‧‧‧ needle board

24‧‧‧壓腳桿24‧‧‧ Presser bar

26‧‧‧壓腳板26‧‧‧Foot plate

28‧‧‧樞軸、螺釘28‧‧‧Pivot, screw

30‧‧‧臂30‧‧‧ Arm

32‧‧‧圓柱體32‧‧‧Cylinder

33‧‧‧樞軸33‧‧‧ pivot

34‧‧‧傾斜元件、活塞34‧‧‧ Tilting elements, pistons

36‧‧‧桿36‧‧‧ rod

38‧‧‧平板38‧‧‧ tablet

40‧‧‧叉狀元件40‧‧‧fork components

42‧‧‧臂42‧‧‧ Arm

44‧‧‧感測器44‧‧‧ Sensor

46‧‧‧纜線46‧‧‧ cable

Claims

一種與具有控制系統的縫紉機(10)匹配的壓腳裝置，所述縫紉機(10)包括頭部(14)和將被縫紉的工件(50)放置其上的基座(12)，所述壓腳裝置包括與頭部(14)匹配的壓腳桿(24)和壓腳板(26)，壓腳板通過樞軸(28)鉸接到所述壓腳桿(24)上以改變壓腳板(26)相對於壓腳桿(24)的傾斜度，所述壓腳板(26)適用於為了在壓力下將所述工件保持在基座(12)上而壓下工件(50)，其特徵在於包括：一由臂(30)、傾斜元件(34)、平板(38)、叉狀元件(40)及感測器(44)所構成的檢測機構，檢測壓腳板(26)相對於壓腳桿(24)的傾斜度和適於檢測壓腳板(26)的傾斜度變化；一由臂(30)、傾斜元件(34)及叉狀元件(40)所構成的壓制機構，適於在壓腳板(26)上啟動，所述壓制機構不在樞軸(28)的鉸接軸上對壓腳板(26)施壓，所述壓制機構包括適於以連續的方式獨立於壓腳板(26)的傾斜度變化而改變壓腳板上的壓力的壓力控制器。 A presser foot device matched with a sewing machine (10) having a control system, the sewing machine (10) comprising a head (14) and a base (12) on which a workpiece (50) to be sewn is placed, the pressure The foot device includes a presser foot bar (24) and a presser foot plate (26) that are matched to the head (14), and the presser foot plate is hinged to the presser foot bar (24) by a pivot (28) to change the presser foot plate (26) The presser foot (26) is adapted to press the workpiece (50) for holding the workpiece on the base (12) under pressure with respect to the inclination of the presser foot (24), characterized by comprising: A detecting mechanism composed of an arm (30), a tilting member (34), a flat plate (38), a fork member (40), and a sensor (44) detects the presser foot plate (26) relative to the presser foot (24) The inclination and the inclination change suitable for detecting the presser foot (26); a pressing mechanism composed of the arm (30), the tilting member (34) and the fork member (40), which is suitable for the presser foot (26) Starting up, the pressing mechanism does not press the presser foot (26) on the hinge axis of the pivot (28), the pressing mechanism comprising a change in inclination that is adapted to be independent of the presser foot (26) in a continuous manner Change the pressure of the pressure on the presser plate Controller.

如請求項1所述的壓腳裝置，其中，所述檢測機構包括連接於縫紉機(10)控制系統上的感測器(44)和一由臂(30)、圓柱體(32)、傾斜元件(34)、平板(38)及叉狀元件(40)所構成的鉸鏈機構，前述鉸鏈機構與壓腳板(26)連接並作用於感測器(44)上，使得感測器(44)檢測壓腳板(26)的傾斜度變化。 The presser foot device of claim 1, wherein the detecting mechanism comprises a sensor (44) coupled to a sewing machine (10) control system and an arm (30), a cylinder (32), a tilting member (34), a hinge mechanism formed by the flat plate (38) and the fork member (40), wherein the hinge mechanism is coupled to the presser foot plate (26) and acts on the sensor (44) to enable the sensor (44) to detect The inclination of the presser foot plate (26) changes.

如請求項2所述的壓腳裝置，其中，所述鉸鏈機構包括：一臂(30)，一端固定在壓腳板(26)上，並且另一端包括一個圓柱體(32)；一傾斜元件(34)，鉸接在縫紉機(10)的頭部(14)；一叉狀元件(40)，一端固定在傾斜元件(34)上，並且另一端包括臂(30)的圓柱體(32)在其中運動的底座；一平板(38)，固定在傾斜元件(34)上並佈置在感測器(44)的旁邊；據此，通過改變壓腳板(26)的傾斜度，臂(30)旋轉並迫使圓柱體(32)在叉狀元件(40)上獲得的底座內移動，因此，引起傾斜元件(34)的旋轉，為使平板(38)朝感測器(44)移動或使平板(38)遠離感測器(44)移動。 The presser foot device of claim 2, wherein the hinge mechanism comprises: an arm (30) having one end fixed to the presser foot plate (26) and the other end including a cylinder (32); a tilting element ( 34) hinged to the head (14) of the sewing machine (10); a forked member (40), one end fixed to the tilting member (34), and the other The end includes a base in which the cylinder (32) of the arm (30) moves; a plate (38) is fixed to the tilting member (34) and disposed beside the sensor (44); accordingly, by changing the pressure The inclination of the foot plate (26), the arm (30) rotates and forces the cylinder (32) to move within the base obtained on the fork member (40), thereby causing rotation of the tilting member (34) for the plate (38) Moving toward the sensor (44) or moving the plate (38) away from the sensor (44).

如請求項3所述的壓腳裝置，其中，所述傾斜元件(34)包括活塞，該活塞包括一端固定在叉狀元件(40)上的桿(36)和桿(36)在其中滑動的筒，所述筒的一端鉸接在縫紉機(10)的頭部(14)上。 The presser foot device of claim 3, wherein the tilting member (34) includes a piston including a rod (36) having one end fixed to the fork member (40) and a rod (36) sliding therein A barrel having one end hinged to the head (14) of the sewing machine (10).

如請求項3或4所述的壓腳裝置，其中，叉狀元件(40)包括兩個臂(42)，在兩個臂(42)之間形成一個臂(30)的圓柱體(32)在其中移動的底座。 A presser foot device according to claim 3 or 4, wherein the fork member (40) comprises two arms (42), and a cylinder (32) forming an arm (30) between the two arms (42) The base in which to move.

一種縫紉機，如請求項1至5中任一項之壓腳裝置。 A sewing machine, such as the presser foot device of any one of claims 1 to 5.

一種縫紉機(10)對具有厚度變化的織物的縫製方法，所述縫紉機包括壓腳桿(24)，壓腳板(26)通過樞軸(28)鉸接在壓腳桿(24)上，所述樞軸將壓腳板(26)分成前部和後部，前部先於後部接觸到織物，其特徵在於：所述方法檢測壓腳板(26)的傾斜度及/或壓腳板的傾斜度的變化，並以可調整的方式在壓力下放置壓腳板(26)的前部，獨立於壓腳板(26)的傾斜度及/或傾斜度變化和織物的厚度變化。 A sewing machine (10) for sewing a fabric having a thickness variation, the sewing machine comprising a presser foot (24) hinged to a presser foot (24) by a pivot (28), the pivot The shaft divides the presser foot plate (26) into a front portion and a rear portion, the front portion contacting the fabric prior to the rear portion, wherein the method detects the inclination of the presser foot plate (26) and/or the change in the inclination of the presser foot plate, and The front portion of the presser foot (26) is placed under pressure in an adjustable manner, independent of the inclination and/or inclination of the presser foot (26) and the thickness variation of the fabric.