Feeding device and bag opening machine

Abstract

The feeding device comprises a frame body, a feeding plate, a presser foot assembly and an adsorption assembly, the feeding plate is connected to the frame body and can move in the first direction, and the feeding plate is provided with an adsorption area used for adsorbing lower-layer cloth laid on the feeding plate; the presser foot assembly is connected to the frame body and can move in the first direction, the presser foot assembly comprises a left presser foot module and a right presser foot module which are arranged in a spaced mode in the second direction, and presser foot plates are arranged at the bottoms of the left presser foot module and the right presser foot module and used for pressing upper-layer cloth located on the side, away from the feeding plate, of lower-layer cloth; the adsorption assembly comprises an adsorption hole located in the bottom of the presser foot plate, an air suction channel communicated with the adsorption hole and a negative pressure pipe communicated with the air suction channel. The negative pressure environment is generated through the negative pressure pipe, so that the adsorption holes in the bottom of the presser foot plate adsorb the upper-layer cloth, the lower-layer cloth and the upper-layer cloth are accurately positioned and do not move in a staggered mode, and the phenomena of dislocation, pleating and the like during sewing of ultra-thin and silky materials are avoided.

Description

Technical Field

[0001] This utility model relates to the field of bag opening machine technology, and in particular to a feeding device and a bag opening machine. Background Technology

[0002] A pocket opening machine is a specialized sewing machine for opening pockets in garments. It consists of a double-needle shuttle sewing mechanism, a large yarn hook, a center knife with a knife pad, corner knives, and a thread cutter with a thread clip. When using a pocket opening machine, it is necessary to perform air extraction on the base plate where the fabric is placed. This ensures that when the fabric covers the ventilation holes, it is adhered to the base plate, preventing the fabric from shifting or becoming uneven due to external factors.

[0003] Most existing bag-opening machines use a bottom suction system to absorb the fabric onto a chassis and press the upper layer of fabric with a presser foot assembly. When sewing bags with extremely thin or silky fabrics, the presser foot assembly does not easily press the upper layer of fabric firmly, resulting in problems such as misalignment, wrinkling, misalignment, uneven opening, and frayed edges during the bag-opening process.

[0004] Therefore, how to provide a feeding device and a bag opening machine, and how to at least partially solve the above-mentioned drawbacks, are technical problems that need to be solved by those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a feeding device and a bag opening machine that can avoid misalignment and pleating when sewing extremely thin and silky materials.

[0006] To achieve the above objectives, this utility model provides a feeding device, comprising:

[0007] Frame;

[0008] The feeding plate is connected to the frame and can move in the first direction. The feeding plate is provided with an adsorption area for adsorbing the lower layer of fabric laid on the feeding plate.

[0009] The presser foot assembly is connected to the frame and can move in a first direction. The presser foot assembly includes a left presser foot module and a right presser foot module spaced apart in a second direction. The bottom of the left presser foot module and the right presser foot module are provided with presser foot plates for pressing the upper layer of fabric located on the side of the lower layer of fabric away from the feed plate.

[0010] The adsorption assembly includes an adsorption hole located at the bottom of the presser foot plate, an air suction duct connected to the adsorption hole, and a negative pressure pipe connected to the air suction duct. The negative pressure pipe can generate a negative pressure environment for the presser foot plate to adsorb the upper layer of fabric.

[0011] The first direction and the second direction are perpendicular to each other.

[0012] Preferably, the presser plate comprises an end face located on a side of the presser plate facing the feeding plate, the end face is provided with a first groove to form an air suction channel, a connecting port communicating with the air suction channel is provided on a side of the presser plate in the second direction, the connecting port is used for connecting the negative pressure pipe, and the suction assembly comprises an air channel cover plate detachably connected to the end face to seal the first groove, the air channel cover plate is provided with a through hole to form a suction hole.

[0013] Preferably, the air channel cover plate comprises a bottom face located on a side of the air channel cover plate facing the feeding plate, the bottom face is flush with the end face, and the bottom face and the end face are both parallel to the feeding plate.

[0014] Preferably, the negative pressure pipe comprises a pipe body and a pipe clamp, the pipe body is used for gas flow, the pipe clamp is used for fixing the pipe body, the pipe clamp is provided with a through hole, the connecting piece is arranged in the through hole and fixed to the left presser module or the right presser module, so that the negative pressure pipe is fixed relative to the presser plate.

[0015] Preferably, one end of the pipe body is provided with an adjustable joint, the adjustable joint is connected to the connecting port, the adjustable joint can rotate relative to the pipe body, and the adjustable joint is used for limiting the negative pressure in the air suction channel.

[0016] Preferably, the pipe clamp is provided with an abutting face, the abutting face is an arc face matched with the outer surface of the pipe body, so that the pipe clamp and the pipe body are attached.

[0017] Preferably, one end of the pipe body away from the adjustable joint is connected to the electromagnetic valve, and the pipe body is connected to the compressor used for generating a negative pressure environment through the electromagnetic valve, and the electromagnetic valve is used for controlling the flow and closing of the pipe body.

[0018] Preferably, the two first grooves are parallel to each other, and the length direction of the first groove is parallel or collinear to the first direction.

[0019] Preferably, the suction holes are a plurality of, and all the suction holes are uniformly arranged on the air channel cover plate along the first direction.

[0020] A bag opening machine comprises the feeding device.

[0021] With respect to the background art, the feeding device comprises a frame body, a feeding plate, a presser assembly and a suction assembly, the feeding plate is connected to the frame body and can move along a first direction, the feeding plate is provided with a suction area for suction of a lower layer of cloth laid on the feeding plate; the presser assembly is connected to the frame body and can move along the first direction, the presser assembly comprises a left presser module and a right presser module arranged at intervals in a second direction, the bottom of the left presser module and the right presser module are both provided with a presser plate for pressing a upper layer of cloth on a side of the lower layer of cloth away from the feeding plate; the suction assembly comprises a suction hole located at the bottom of the presser plate, an air suction channel communicating with the suction hole, and a negative pressure pipe communicating with the air suction channel, the negative pressure pipe can generate a negative pressure environment for the presser plate to suction the upper layer of cloth.

[0022] Specifically, the lower layer of cloth is laid on the preset position of the feeding plate and fixed by the suction area, then the upper layer of cloth is laid, the presser foot assembly is moved to above the upper layer of cloth along the first direction, the upper layer of cloth is pressed by the presser foot plates of the left presser foot module and the right presser foot module, then the negative pressure environment is generated by the negative pressure pipe to make the suction holes at the bottom of the presser foot plates adsorb the upper layer of cloth, the lower layer of cloth and the upper layer of cloth are accurately positioned, and the lower layer of cloth and the upper layer of cloth will not move out of position, thereby avoiding the mispositioning and wrinkling when sewing extremely thin and slippery materials. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.

[0024] Fig. 1 The structural schematic view of the feeding device provided by the embodiment of the present application;

[0025] Fig. 2 The structural schematic view of the presser foot assembly provided by the embodiment of the present application;

[0026] Fig. 3 The exploded view of the right presser foot module provided by the embodiment of the present application;

[0027] Fig. 4 The structural schematic view of the presser foot plate provided by the embodiment of the present application.

[0028] Among them:

[0029] 100 - feeding plate, 110 - suction area;

[0030] 200 - left presser foot module, 210 - presser foot arm;

[0031] 300 - right presser foot module;

[0032] 400 - presser foot plate, 410 - first groove body, 420 - connecting port;

[0033] 500 - air duct cover plate, 510 - suction hole;

[0034] 610 - pipeline body, 620 - pipe clamp, 630 - adjustable joint;

[0035] 700 - connecting piece;

[0036] 800 - electromagnetic valve. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application.

[0038] In order to enable those skilled in the art to better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and specific embodiments.

[0039] In the description of the present application, it should be understood that the terms "upper", "lower", "left" and "right" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present application.

[0040] The purpose of the present application is to provide a feeding device and a bag opening machine, which can avoid misalignment and pleating when sewing extremely thin and slippery materials.

[0041] It should be noted that in the drawings, the direction of X is defined as the first direction, and the direction of Y is defined as the second direction, and the first direction and the second direction are perpendicular to each other.

[0042] Please refer to Figs. 1 to 4 To achieve the above purpose, the present application provides a feeding device, which comprises a frame body, a feeding plate 100, a presser foot assembly and a suction assembly.

[0043] The feeding plate 100 is connected to the frame body and can move along the first direction. The feeding plate 100 is provided with a suction area 110 for suction and laying of the lower layer of cloth on the feeding plate 100. The feeding plate 100 comprises left and right sliding plates of the same height, and there is a gap between the left and right sliding plates. The gap provides a clearance space for subsequent sewing and opening of the bag. The left and right sliding plates are each provided with a suction area 110 formed by a through hole. The through holes of the suction area 110 generate a negative pressure environment by a compressor, so that the suction area 110 can suction and fix the lower layer of cloth. The number, size and distribution of the through holes can be set according to actual needs, which can prevent the lower layer of cloth from sliding relative to the feeding plate 100.

[0044] The presser foot assembly is connected to the frame body and can move in the first direction, and the presser foot assembly comprises a left presser foot module 200 and a right presser foot module 300 which are arranged in the second direction, the left presser foot module 200 is located above the left sliding plate, and the right presser foot module 300 is located above the right sliding plate, the left presser foot module 200 and the right presser foot module 300 are each provided with a presser foot arm 210, and the bottom of the left presser foot module 200 and the right presser foot module 300 is provided with a presser foot plate 400, the presser foot plate 400 is moved by the presser foot arm 210, so that the presser foot plate 400 can press the upper layer of cloth located on the side away from the feeding plate 100 of the lower layer of cloth.

[0045] The suction assembly comprises suction holes 510 located at the bottom of the presser foot plate 400, a suction duct communicated with the suction holes 510, and a negative pressure pipe communicated with the suction duct, the negative pressure pipe can generate a negative pressure environment for the presser foot plate 400 to adsorb the upper layer of cloth, in one possible embodiment, the suction duct is two sets, the negative pressure pipe is one set, one set of negative pressure pipe is communicated with two sets of suction ducts, which saves materials, and at the same time can make the suction holes 510 adsorb the upper layer of cloth synchronously, in another possible embodiment, the suction duct and the negative pressure pipe are both two sets, the suction duct and the corresponding negative pressure pipe are communicated, for respectively controlling the suction holes 510 to adsorb the upper layer of cloth, which can synchronously adsorb the upper layer of cloth, and at the same time can avoid problems such as uneven partial pressure caused by sharing one set of negative pressure pipe by two sets of suction ducts.

[0046] The lower layer of cloth is laid on the preset position of the feeding plate 100 and is adsorbed and fixed through the suction area 110, then the upper layer of cloth is laid, the presser foot assembly is moved in the first direction to above the upper layer of cloth, the presser foot plate 400 of the left presser foot module 200 and the right presser foot module 300 presses the upper layer of cloth, then the negative pressure environment is generated by the negative pressure pipe to make the suction holes 510 at the bottom of the presser foot plate 400 adsorb the upper layer of cloth, the lower layer of cloth and the upper layer of cloth are accurately positioned, and the lower layer of cloth and the upper layer of cloth will not move out of position, thereby avoiding the misplacement and wrinkling phenomenon when sewing very thin and slippery materials.

[0047] In the embodiment, the presser foot plate 400 comprises an end face located on the side of the presser foot plate 400 facing the feeding plate 100, the end face is used to fit and press the upper layer of cloth, the end face is provided with a first groove body 410 to form a suction duct, one side of the presser foot plate 400 in the second direction is provided with a connecting port 420 communicated with the suction duct, the connecting port 420 is used to connect the negative pressure pipe, the suction duct is also in a negative pressure environment through the negative pressure pipe, the suction assembly comprises a duct cover plate 500 which is detachably connected to the end face to seal the first groove body 410, the duct cover plate 500 is provided with a through hole communicated with the suction duct to form a suction hole 510, the upper layer of cloth is adsorbed and fixed through the suction hole 510.

[0048] The cross section shape of the adsorption hole 510 perpendicular to its axis can be one or more of a triangle, a square, a circle, an ellipse, a waist shape, and a long strip shape. The two first groove bodies 410 are parallel to each other, and the length direction of the first groove body 410 is parallel or collinear to the first direction. The adsorption hole 510 can be provided in multiple numbers, and all the adsorption holes 510 are uniformly arranged along the first direction on the air duct cover plate 500, so that the flatness of the adsorbed upper layer of cloth is better. The size and number of the adsorption hole 510 can also be set according to actual needs, which is not limited here as long as the above-mentioned purposes can be achieved.

[0049] In some embodiments, the air duct cover plate 500 includes a bottom surface which is a plane, and the bottom surface is located on the side of the air duct cover plate 500 facing the feeding plate 100. After the air duct cover plate 500 is fixed to the first groove body 410 of the end surface, the bottom surface of the air duct cover plate 500 is flush with the end surface of the presser plate 400, forming a plane structure, and the plane structure composed of the bottom and the end surface is parallel to the feeding plate 100, so that the plane structure can be completely attached to the upper layer of cloth, increasing the contact area with the upper layer of cloth, and improving the pressing effect on the upper layer of cloth and the lower layer of cloth.

[0050] The negative pressure pipe includes a pipe body 610 and a pipe clamp 620. The pipe body 610 is used for gas flow, and the pipe clamp 620 is used for fixing the pipe body 610. The pipe clamp 620 is provided with a through hole, and the connecting piece 700 is arranged in the through hole and fixed to the left presser foot module 200 or the right presser foot module 300, so that the negative pressure pipe is fixed relative to the presser plate 400. The connecting piece 700 can be a screw, and a corresponding threaded hole is formed in the presser foot arm 210, so that the screw fixes the pipe clamp 620 and the pipe body 610. The pipe clamp 620 is provided with an abutting surface which is an arc surface matched with the outer surface of the pipe body 610, so that the pipe clamp 620 and the pipe body 610 are attached, improving the fixing effect of the pipe body 610. The number of pipe clamps 620 and the position of clamping the pipe body 610 can be adjusted according to actual conditions, which will not be described here.

[0051] One end of the pipe body 610 is provided with an adjustable joint 630 which is connected to the connecting port 420. The adjustable joint 630 can rotate relative to the pipe body 610, and is used for limiting the negative pressure in the air duct. Different adsorption forces are adopted according to different requirements of different thicknesses and different silkiness of materials. The other end of the pipe body 610 away from the adjustable joint 630 is connected to the electromagnetic valve 800, and the electromagnetic valve 800 is connected to the compressor for generating a negative pressure environment. The electromagnetic valve 800 is used for controlling the flow and closing of the pipe body 610. The adsorption area 110 can also be connected to the same or different electromagnetic valve 800 through a pipe, and connected to the same or different compressor through the electromagnetic valve 800, so as to control the adsorption of the upper layer of cloth and the lower layer of cloth.

[0052] In summary, the feeding device provided by the application, through the adsorption hole 510 located at the bottom of the presser foot plate 400, the air suction duct communicated with the adsorption hole 510, and the negative pressure pipe communicated with the air suction duct, the negative pressure pipe can generate a negative pressure environment for the presser foot plate 400 to adsorb the upper layer of cloth, so that the upper layer of cloth is fixed and adsorbed when the presser foot plate 400 presses the upper layer of cloth, the negative pressure pipe includes a pipe body 610, a pipe clamp 620 for fixing the pipe body 610, and an adjustable joint 630 connected to one end of the pipe body 610 to communicate with the air suction duct, the negative pressure in the air suction duct is adjusted according to different requirements of different thicknesses and different silkiness of the material on the adsorption force through the adjustable joint 630, the electromagnetic valve 800 is used to control the flow and closing of the pipe body 610, and the on-off time of the electromagnetic valve 800 can realize the synchronous generation of the negative pressure environment of the pipe body 610 connected to the air suction duct, cooperate with the existing adsorption area 110 on the feeding plate 100, fix the upper layer of cloth and the lower layer of cloth, and accurately position the lower layer of cloth and the upper layer of cloth in the subsequent sewing and opening pocket process, and the lower layer of cloth and the upper layer of cloth will not move out of position, thereby avoiding the mispositioning and wrinkling phenomenon when sewing extremely thin and silkiness materials.

[0053] In addition, the application also includes a bag opening machine, which includes the above-mentioned feeding device and has the beneficial effects of the above-mentioned feeding device.

[0054] It should be noted that in the present specification, the relationship terms such as first and second are only used to distinguish one entity from another entity, and do not necessarily require or imply any such actual relationship or order between the entities.

[0055] The embodiments in the present specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same or similar parts between the embodiments can be referred to each other.

[0056] The principle and implementation mode of the present application are described by using specific examples, and the above description of the embodiments is only used to help understand the method and core idea of the present application. It should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, the present application can be improved and modified in several ways, and these improvements and modifications also fall within the protection scope of the present application.

Claims

1. A feeding device, characterized in that, The utility model relates to a kind of automatic laying machine for laying upper layer cloth on lower layer cloth, comprising: Frame body; Feeding plate (100) is connected to the frame body, and can be moved along the first direction, the feeding plate (100) is provided with suction area (110), for adsorbing the lower layer cloth laid on the feeding plate (100); Presser foot assembly is connected to the frame body, and can be moved along the first direction, the presser foot assembly includes left presser foot module and right presser foot module, which are arranged at intervals in the second direction, the bottom of the left presser foot module and the right presser foot module is provided with presser foot plate (400), for pressing the upper layer cloth on the side of the lower layer cloth away from the feeding plate (100); Suction assembly includes suction hole (510) at the bottom of the presser foot plate (400), suction duct communicated with the suction hole (510), and negative pressure pipe communicated with the suction duct, the negative pressure pipe can generate negative pressure environment for the presser foot plate (400) adsorbing the upper layer cloth;The first direction and the second direction are perpendicular to each other.

2. The feeder of claim 1, wherein The presser foot plate (400) includes end face, the end face is located on the side of the presser foot plate (400) towards the feeding plate (100), the end face is provided with first groove (410) to form the suction duct, the side of the presser foot plate (400) in the second direction is provided with connecting port (420) communicated with the suction duct, the connecting port (420) is used for docking the negative pressure pipe, the suction assembly includes air duct cover plate (500) detachably connected to the end face to seal the first groove (410), the air duct cover plate (500) is provided with through hole to form the suction hole (510).

3. The feeder of claim 2, wherein The air duct cover plate (500) includes bottom surface, and the bottom surface is located on the side of the air duct cover plate (500) towards the feeding plate (100), the bottom surface is flush with the end face, and the bottom and the end face are parallel to the feeding plate (100).

4. The feeder of claim 2, wherein The negative pressure pipe includes pipe body (610) and pipe clamp (620), the pipe body (610) is used for gas flow, the pipe clamp (620) is used for fixing the pipe body (610), the pipe clamp (620) is provided with through hole, connecting piece (700) is arranged in the through hole and is fixed to the left presser foot module or the right presser foot module, so that the negative pressure pipe is fixed relative to the presser foot plate (400).

5. The feeder of claim 4, wherein One end of the pipe body (610) is provided with adjustable joint (630), the adjustable joint (630) is docked to the connecting port (420), the adjustable joint (630) can rotate relative to the pipe body (610), for limiting the negative pressure size in the suction duct.

6. The feeder of claim 4, wherein The pipe clamp (620) is provided with abutting surface, the abutting surface is arc surface matched with the outer surface of the pipe body (610), so that the pipe clamp (620) and the pipe body (610) are attached.

7. The feeder of claim 5, wherein The pipe body (610) is connected to an electromagnetic valve (800) at one end away from the adjustable joint (630), and is connected to a compressor for generating a negative pressure environment through the electromagnetic valve (800), and the electromagnetic valve (800) is used for controlling the flow and closing of the pipe body (610).

8. A feeder device according to any one of claims 2 to 7, wherein, The two first groove bodies (410) are parallel to each other, and the length direction of the first groove body (410) is parallel to or collinear with the first direction.

9. A feeder device according to any one of claims 2 to 7, wherein, The adsorption holes (510) are multiple, and all the adsorption holes (510) are uniformly arranged on the air duct cover plate (500) along the first direction.

10. An opening machine characterized by comprising: A feeding device comprising any one of the preceding claims 1-9.

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