CN209741397U - Sandwich type cloth pressing mechanism of sewing machine - Google Patents
Sandwich type cloth pressing mechanism of sewing machine Download PDFInfo
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- CN209741397U CN209741397U CN201920153358.6U CN201920153358U CN209741397U CN 209741397 U CN209741397 U CN 209741397U CN 201920153358 U CN201920153358 U CN 201920153358U CN 209741397 U CN209741397 U CN 209741397U
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- pressing plate
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- sewing machine
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- negative pressure
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Abstract
The utility model discloses a sandwich-type cloth pressing mechanism of sewing machine, a serial communication port, include: the sewing machine comprises an upper material pressing plate and a lower material pressing plate, wherein the upper material pressing plate is connected with a pressing rotating shaft of the sewing machine, a negative pressure device used for adsorbing sewing materials and the lower material pressing plate is arranged on the upper material pressing plate, and the lower material pressing plate is used for bearing and placing the sewing materials. The utility model discloses a sandwich formula structure, upper and lower compress board pass through the mode of negative pressure actuation, can self-holding with loosen the seam material, press from both sides tightly firmly reliably, not only be applicable to the simple individual layer of centre gripping and sew up the material, also can be used to the special seam material of centre gripping, like multilayer superimposed seam material, with the great seam material of platen face friction etc.. Meanwhile, the negative pressure device arranged on the upper pressure plate is used for realizing the adsorption and disconnection of the sewing material and the lower pressure plate, and the electromagnetic valve can control the sewing material and the lower pressure plate, so that the sewing material feeding device is simple to control and convenient to realize.
Description
Technical Field
The utility model relates to the field of machinary, especially, relate to a sandwich type cloth pressing mechanism for sewing machine.
background
In the sewing industry, along with the continuous increase of labor cost, in order to save cost, the requirement on the automation degree of a machine is higher and higher, a full-automatic machine for automatic feeding, automatic sewing and automatic material receiving is designed and produced, automatic feeding mechanisms are various, wheels are used for assisting feeding, a template frame is used for clamping cloth for feeding, and a manipulator is used for feeding. However, these automatic feeding mechanisms all require an auxiliary frame to clamp the cloth, and the operation of clamping the cloth to the frame is manually completed, so that full automation cannot be realized.
The utility model discloses a chinese utility model patent that a patent is 201720790002.4 presses frame mechanism can realize full automated autoloading, and the structure that uses is the whole frame mechanism that presses of rigidity, and it can directly push down the sewing of seam material automatically, is applicable to towel, square towel, wash the dishes towel etc. and sews up the automatic sewing of the individual layer sewing material of mesa low friction greatly. However, this mechanism is not effective for sewing a plurality of layers of overlapped materials or materials with a large friction force with a large sewing table.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a press from both sides tight firm reliable, sewing machine cloth pressing mechanism that application scope is wide.
In order to achieve the above purpose, the utility model adopts the following technical scheme.
The utility model provides a sandwich-type cloth pressing mechanism of sewing machine which characterized in that includes: the sewing machine comprises an upper material pressing plate and a lower material pressing plate, wherein the upper material pressing plate is connected with a pressing rotating shaft of the sewing machine, a negative pressure device used for adsorbing sewing materials and the lower material pressing plate is arranged on the upper material pressing plate, and the lower material pressing plate is used for bearing and placing the sewing materials.
As a further explanation of the above scheme, the negative pressure device includes a negative pressure cavity, a negative pressure air inlet communicated with the negative pressure cavity, and a plurality of adsorption holes arranged at the bottom of the upper pressure plate and communicated with the negative pressure cavity.
As a further explanation of the above scheme, the upper pressure plate is a square plate, the negative pressure air inlets are disposed at four corners of the top of the upper pressure plate, and the negative pressure cavity is formed in the upper pressure plate.
As a further explanation of the above scheme, the adsorption holes are uniformly arranged around the bottom of the upper pressure plate.
As a further explanation of the above scheme, a protruded adsorption surface is arranged around the bottom of the upper pressure plate, and the adsorption holes are uniformly arranged on the adsorption surface.
As a further explanation of the above solution, a friction increasing plate or a friction strip for increasing the friction force is provided on the lower press plate.
As a further explanation of the above scheme, an installation fixing hole is provided in the middle of the upper pressure plate, and one end of the pressing rotating shaft is fixed in the installation fixing hole.
As a further explanation of the above scheme, a positioning pin is provided on the upper pressure plate, and a positioning shaft matched with the positioning pin is provided corresponding to the positioning pin.
As a further explanation of the above scheme, the positioning pin is a spring pin, the top of the positioning pin is in a spherical crown shape, and a groove matched with the top of the positioning pin is arranged on the positioning shaft.
As a further explanation of the above scheme, the upper pressure plate is a square plate, and the positioning pins are disposed at four corners of the upper pressure plate.
The utility model has the advantages that:
The novel sewing machine adopts a sandwich structure, clamps sewing materials in an automatic clamping mode through an upper material pressing plate and a lower material pressing plate, is firm and reliable in clamping, is not only suitable for clamping simple single-layer sewing materials, but also can be used for clamping special sewing materials, such as multi-layer overlapped sewing materials, sewing materials with large friction with a table board surface and the like. Meanwhile, the negative pressure device arranged on the upper pressure plate is used for realizing the adsorption and disconnection of the sewing material and the lower pressure plate, and the electromagnetic valve can control the sewing material and the lower pressure plate, so that the sewing material feeding device is simple to control and convenient to realize.
Secondly, through setting up the friction-increasing board, increase the friction between clamp plate and the seam material, the seam material can not fall out at the sewing in-process, also can not misplace. Therefore, the cloth pressing mechanism is used for pressing and feeding cloth, a large table plate (a supporting surface for sewing materials during automatic sewing) for sewing can be omitted, and the space and the cost of the whole machine are saved.
And thirdly, the periphery of the bottom of the upper pressure plate is provided with the protruded adsorption surface, so that the two plates are favorable for pressing the sewing material by closing the periphery of the two plates in the suction process, the periphery of the sewing material is firmer, and the sewing material is not easy to misplace in the sewing process.
And fourthly, the positioning pins are arranged at the four corners of the upper material pressing plate and are matched with other positioning shafts, so that the phenomenon that the cloth pressing mechanism runs out due to mechanism errors of the feeding mechanism or motion errors of the feeding mechanism can be avoided when corner sewing is carried out.
Drawings
Fig. 1 is a schematic view of a sandwich type cloth pressing mechanism of a sewing machine according to the present invention.
Fig. 2 is a schematic structural view of the upper pressure plate.
Fig. 3 is a side view of the sandwich type cloth pressing mechanism of the sewing machine according to the present invention.
Description of reference numerals:
1: go up the pressure flitch, 2: lower material pressing plate, 3: pressing rotation shaft, 4: sewing material, 5: negative pressure cavity, 6: negative pressure air inlet, 7: adsorption pores, 8: adsorption surface, 9: friction-increasing plate, 10: mounting and fixing hole, 11: positioning pin, 12: and (5) positioning the shaft.
Detailed Description
In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.
Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "at least" means one or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
In the present application, unless otherwise specified or limited, "above" or "below" a first feature may include the first and second features being in direct contact, and may also include the first and second features not being in direct contact but being in contact with each other through another feature therebetween. Also, the first feature being "above," "below," and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply an elevation which indicates a level of the first feature being higher than an elevation of the second feature. The first feature being "above", "below" and "beneath" the second feature includes the first feature being directly below or obliquely below the second feature, or merely means that the first feature is at a lower level than the second feature.
The following description will be further made in conjunction with the accompanying drawings of the specification, so that the technical solution and the advantages of the present invention are clearer and clearer. The embodiments described below are exemplary and are intended to be illustrative of the present invention, but should not be construed as limiting the invention.
as shown in fig. 1 to 3, a cloth pressing mechanism of a sewing machine is characterized by comprising: the sewing machine comprises an upper pressure plate 1 and a lower pressure plate 2, wherein the upper pressure plate 1 is connected with a compression rotating shaft 3 of the sewing machine, a negative pressure device used for adsorbing a sewing material 4 and the lower pressure plate 2 is arranged on the upper pressure plate 1, and the lower pressure plate 2 is used for bearing and placing the sewing material 4. The action of the negative pressure device can be controlled through the electromagnetic valve, so that the adsorption and the release of the sewing material and the lower pressing plate are realized.
The negative pressure device comprises a negative pressure cavity 5, a negative pressure air inlet 6 communicated with the negative pressure cavity 5 and a plurality of adsorption holes 7 arranged at the bottom of the upper pressure plate 1 and communicated with the negative pressure cavity 5. In this embodiment, it is preferred that the upper pressure plate 1 is a square plate, the negative pressure air inlets 6 are disposed at four corners of the top of the upper pressure plate 1, the negative pressure cavity 5 is formed in the upper pressure plate 1, and the adsorption holes 7 are uniformly arranged around the bottom of the upper pressure plate 1. In other embodiments, the upper nip plate is disposed according to the shape of the cloth, and the negative pressure air inlet is disposed at a side portion of the upper nip plate, not limited to this embodiment.
Preferably, the periphery of the bottom of the upper pressure plate 1 is further provided with a protruding adsorption surface 8, and the adsorption holes 7 are uniformly arranged on the adsorption surface 8. Therefore, the two plates are closed to press the sewing material 4 all around when being sucked, cloth pressing all around the sewing material 4 is firmer, and dislocation is not easy to occur during sewing.
Preferably, a friction increasing plate 9 for increasing a frictional force is provided on the lower press plate 2. Therefore, the friction between the pressing plate and the sewing material can be increased, and the sewing material is prevented from being misplaced in the sewing process, so that the cloth pressing mechanism is used for pressing and feeding the cloth, a large table plate (a supporting surface for sewing material in automatic sewing) for sewing can be omitted, and the space and the cost of the whole machine are saved. In other embodiments, the friction plate 9 may be replaced by a friction strip, and is not limited to this embodiment.
Preferably, an installation fixing hole 10 is formed in the middle of the upper pressure plate 1, and one end of the compression rotating shaft 3 is fixed in the installation fixing hole 10.
Further preferably, the upper pressure plate 1 is provided with a positioning pin 11, and a positioning shaft 12 matched with the positioning pin 11 is arranged corresponding to the positioning pin 11, so that the phenomenon that the cloth pressing mechanism runs out due to mechanism errors of the feeding mechanism or motion errors of the feeding mechanism during corner sewing can be avoided.
In this embodiment, the positioning pin 11 is preferably a spring pin, the top of the positioning pin 11 is preferably in a spherical crown shape, and the positioning shaft 12 is preferably provided with a groove matched with the top of the positioning pin. In this way, the matching of the positioning pin 11 and the positioning shaft 12 can be automatically realized in the rotation process of the cloth pressing mechanism. Preferably, the positioning pins 11 are arranged at four corners of the upper pressure plate 1.
When sewing begins, a feeding mechanism is utilized in a feeding area to feed sewing materials to be sewn on a lower pressing plate 2, an upper pressing plate 1 moves to the feeding area under the driving of a moving mechanism and then presses down the sewing materials, the action of a negative pressure solenoid valve is controlled at the moment, a negative pressure air inlet 6 on the upper pressing plate 1 is communicated with a negative pressure cavity 5, the lower pressing plate 2 is adsorbed through an adsorption surface 8, the sewing materials 4 are clamped, and then the sewing materials are moved to a sewing area under the driving of the moving mechanism to be sewn.
When the corner is sewn, the positioning shaft 12 is pressed downwards and sleeved on the positioning pin 11 on the upper cloth pressing plate, and when the moving mechanism is used for corner sewing, the positioning pin 11 is a fixed corner circle center, so that the phenomenon that the cloth pressing mechanism runs due to mechanism errors of the feeding mechanism or movement errors of the feeding mechanism when the corner is sewn is avoided.
After sewing a piece of sewing material, the moving mechanism drives the cloth pressing mechanism to move to the material placing area, then the electromagnetic valve moves reversely, the cloth pressing mechanism releases the sewing material, and then the material receiving mechanism finishes material receiving. And sewing the next piece of sewing material, and sequentially sewing according to the sewing cycle.
The embodiment provides a pair of sewing machine cloth pressing mechanism adopts sandwich type structure, and the mode that upper and lower cloth pressing plate passes through the negative pressure actuation can self-holding with loosen the seam material, presss from both sides tightly firmly reliably, not only is applicable to the simple individual layer seam material of centre gripping, also can be used to centre gripping special seam material, like multilayer superimposed seam material, with the great seam material of platen face friction etc..
It will be understood by those skilled in the art from the foregoing description of the structure and principles that the present invention is not limited to the specific embodiments described above, and that modifications and substitutions based on the known art are intended to fall within the scope of the invention, which is defined by the claims and their equivalents. The details not described in the detailed description are prior art or common general knowledge.
Claims (10)
1. The utility model provides a sandwich-type cloth pressing mechanism of sewing machine which characterized in that includes: the sewing machine comprises an upper material pressing plate and a lower material pressing plate, wherein the upper material pressing plate is connected with a pressing rotating shaft of the sewing machine, a negative pressure device used for adsorbing sewing materials and the lower material pressing plate is arranged on the upper material pressing plate, and the lower material pressing plate is used for bearing and placing the sewing materials.
2. The sandwich-type cloth pressing mechanism of the sewing machine according to claim 1, wherein the negative pressure device comprises a negative pressure cavity, a negative pressure air inlet communicated with the negative pressure cavity, and a plurality of adsorption holes arranged at the bottom of the upper pressure plate and communicated with the negative pressure cavity.
3. The sandwich-type cloth pressing mechanism of sewing machine as claimed in claim 2, wherein the upper pressing plate is a square plate, the negative pressure air inlets are disposed at four corners of the top of the upper pressing plate, and the negative pressure cavity is formed in the upper pressing plate.
4. The sandwich-type presser mechanism of sewing machine according to claim 2, wherein said suction holes are uniformly arranged around the bottom of said upper presser plate.
5. The sandwich-type cloth pressing mechanism of a sewing machine as claimed in claim 4, wherein the periphery of the bottom of the upper pressing plate is provided with a protruding adsorption surface, and the adsorption holes are uniformly arranged on the adsorption surface.
6. The sandwich cloth pressing mechanism of sewing machine as claimed in claim 1, wherein a friction increasing plate or strip is provided on the lower material pressing plate for increasing friction.
7. The sandwich-type cloth pressing mechanism of a sewing machine as claimed in claim 1, wherein a mounting hole is formed in the middle of the upper pressing plate, and one end of the pressing rotary shaft is fixed in the mounting hole.
8. The sandwich-type cloth pressing mechanism of a sewing machine as claimed in claim 1, wherein the upper pressing plate is provided with a positioning pin, and a positioning shaft is provided corresponding to the positioning pin.
9. The sandwich-type cloth pressing mechanism of a sewing machine according to claim 8, wherein the positioning pin is a spring pin, the top of the positioning pin is in a spherical crown shape, and a groove matched with the top of the positioning pin is arranged on the positioning shaft.
10. The sandwich-type cloth pressing mechanism of sewing machine as claimed in claim 8, wherein the upper pressing plate is a square plate, and the positioning pins are disposed at four corners of the upper pressing plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153358.6U CN209741397U (en) | 2019-01-29 | 2019-01-29 | Sandwich type cloth pressing mechanism of sewing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920153358.6U CN209741397U (en) | 2019-01-29 | 2019-01-29 | Sandwich type cloth pressing mechanism of sewing machine |
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| Publication Number | Publication Date |
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| CN209741397U true CN209741397U (en) | 2019-12-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201920153358.6U Active CN209741397U (en) | 2019-01-29 | 2019-01-29 | Sandwich type cloth pressing mechanism of sewing machine |
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| CN (1) | CN209741397U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811473A (en) * | 2019-01-29 | 2019-05-28 | 佛山职业技术学院 | A kind of sewing machine sandwich style presser |
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2019
- 2019-01-29 CN CN201920153358.6U patent/CN209741397U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109811473A (en) * | 2019-01-29 | 2019-05-28 | 佛山职业技术学院 | A kind of sewing machine sandwich style presser |
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