Kangaroo pocket sewing machine

Abstract

The invention relates to a pocket sewing machine (10) for sewing pockets on textile workpieces (100). It is characterized in that it comprises at least one main framework (11 ) having at least one main table (12) for placing the workpiece (100) on which the pocket is to be sewn, and said main framework (11) comprises; at least one folding apparatus (20) in which the folding process for the pocket is performed, at least one sewing machine (40) for sewing the pocket to the workpiece (100), at least one carrier (30) for carrying the pocket and the workpiece (100) after performing the folding process to at least one sewing section (121) where said sewing machine (40) performs the sewing process on said main table (12), and at least one stacker (50) for stacking the workpieces (100) on top of each other, which takes the workpieces (100) with pockets sewn onto them from the main table (12).

Description

[0001] KANGAROO POCKET SEWING MACHINE

[0002] TECHNICAL FIELD

[0003] The invention relates to a pocket sewing machine for sewing pockets on textile workpieces.

[0004] PRIOR ART

[0005] It offers users the opportunity to store their small items in a practical way, such as in pockets on clothes such as trousers, jackets, and skirts, which are frequently worn in daily life. In addition to their functionality, these pockets also contribute aesthetically to the design of the clothing. Apart from clothes, many products from bags to armchairs also include item storage pockets. Today, kangaroo pockets included in clothes such as sweatshirts in particular give a special functionality to the clothes they are a part of. These pockets are usually located at the bottom part of the front part of clothing products and have a different functionality than ordinary pockets. Kangaroo pockets not only keep hands warm, but also offer users the opportunity to easily carry small items thanks to their spacious design.

[0006] Currently, sewing kangaroo pockets to the workpiece is a laborious process that requires experienced operators. For this process, in the manual sewing process, the ironing machine settings are checked at the pocket ironing stage and the pockets are arranged using the press folding pattern. In this process, the operator may not be able to precisely match the folding dimensions, which may cause compliance problems with the standards. However, occupational accidents may occur during the pressing process.

[0007] At the pocket marking stage, the mark is made using a pattern compatible with the body and pocket. However, there is a risk of staining in this process and the use of a pen specific for this process is required. In the single-needle stage of pocket sewing, the front body is first placed flat on the table and the pocket sewing process is started. When sewing the top part of the kangaroo pocket in the pocket attachment process, the seam may ripple. After finishing the sewing, a zigzag stitch is sewn on another machine. Stacking the workpieces after the sewing is completed is also tedious and time-consuming. For all these reasons, experienced operators are needed for pocket sewing, the process takes a long time, which leads to an increase in costs.

[0008] As a result, all the above-mentioned problems have made it imperative to make an innovation in the relevant technical field.

[0009] SUMMARY OF THE INVENTION

[0010] The present invention relates to a pocket sewing machine for eliminating the above- mentioned disadvantages and bringing new advantages to the relevant technical field.

[0011] An object of the invention is to introduce a pocket sewing machine that automates the process of sewing and stacking pockets on a textile workpiece.

[0012] Another object of the invention is to introduce a pocket sewing machine in which work accidents are prevented, quality standards are ensured, and operator-related errors are prevented in the process of sewing pockets on the workpiece.

[0013] In order to achieve all the purposes mentioned above and that will emerge from the detailed description below, the present invention is a pocket sewing machine for sewing pockets on textile workpieces. Accordingly, its novelty is that it comprises at least one main framework having at least one main table for placing the workpiece on which the pocket is to be sewn, and said main framework comprises; at least one folding apparatus in which the folding process for the pocket is performed, at least one sewing machine for sewing the pocket to the workpiece, at least one carrier for carrying the pocket and the workpiece after performing the folding process to at least one sewing section where said sewing machine performs the sewing process on said main table, and at least one stacker for stacking the workpieces on top of each other, which takes the workpieces with pockets sewn onto them from the main table. Thus, marking, pressing, folding, and sewing operations are gathered in a single framework and the pocket sewing process is reduced to a single process. A possible embodiment of the invention is characterized in that it comprises at least one marker, which serves to indicate the position of the workpiece to be placed on the main table for the folding process.

[0014] Another possible embodiment of the invention is characterized in that said marker is a laser marker.

[0015] Another possible embodiment of the invention is characterized in that said folding apparatus comprises at least one pocket platform on which the pocket is placed, and at least one upper folding plate applying pressure to the workpiece on said pocket platform towards the pocket platform, and comprises at least one folding plate which can be moved by at least one folding drive member towards said upper folding plate and in opposite direction to perform the folding process and which is positioned closer in alignment to the pocket platform than the upper folding plate.

[0016] Another possible embodiment of the invention is characterized in that the pocket platform comprises at least one main plate and at least one movable extension which can be moved by at least one adjustment mechanism towards said main plate and in opposite direction. Thus, the pocket platform can be sized according to pockets of different sizes. However, after the folding process, the pocket platform can be easily freed from the pocket by pulling the movable extensions inward.

[0017] Another possible embodiment of the invention is characterized in that the folding apparatus comprises at least one lower folding movement mechanism for moving at least one pocket platform on which the pocket is placed on the main table towards a side edge of the main table in the direction of at least one y-axis parallel to the surface of the main table.

[0018] Another possible embodiment of the invention is characterized in that the folding apparatus comprises at least one lower folding movement mechanism for moving the upper folding plate towards a side edge of the main table in the direction of at least one y-axis parallel to the surface of the main table to align it with the pocket platform for the folding process. Another possible embodiment of the invention is characterized in that the carrier comprises at least one carrier plate providing contact with the pocket and at least one holding frame providing contact with the workpiece, said carrier plate and said holding frame comprising at least one sewing space therebetween allowing the needle of the sewing machine to operate.

[0019] Another possible embodiment of the invention is characterized in that it comprises at least one carrier movement mechanism for moving the carrier in the directions of an x- axis parallel to the surface of the main table and a y-axis perpendicular to said x-axis.

[0020] Another possible embodiment of the invention is characterized in that the stacker is positioned adjacent to a side edge of the main table, comprises at least one suspension body on which the sewn workpieces are laid and which extends parallel to the side edge of the main table, and comprises at least one first arm which is moved by at least one first arm drive member away from the side edge so as to contact the suspension body and which extends parallel to the suspension body.

[0021] Another possible embodiment of the invention is characterized in that it comprises at least one second arm extending parallel to the suspension body, which can be moved by at least one second arm drive member from the side facing the side edge to the side away from the side edge of a suspension axis passing through the center of the suspension body.

[0022] Another possible embodiment of the invention is characterized in that it comprises at least one stacker movement mechanism for moving the stacker on the main framework in an x-axis parallel to the side edge of the main table.

[0023] BRIEF DESCRIPTION OF DRAWINGS

[0024] Fig. 1 shows a representative top-front diagonal view of the pocket sewing machine of the invention.

[0025] Fig. 2 shows a representative isometric view of the folding apparatus of the pocket sewing machine of the invention. Fig. 3 shows a representative isometric view of the carrier of the pocket sewing machine of the invention.

[0026] Fig. 4 shows a representative isometric view of the stacker of the pocket sewing machine of the invention.

[0027] DETAILED DESCRIPTION OF THE INVENTION

[0028] In this detailed description, the subject of the invention is explained by way of example only for a better understanding of the subject, which shall not create any limiting effect.

[0029] Fig. 1 shows a representative top-front diagonal view of the pocket sewing machine (10) of the invention. Said pocket sewing machine (10) is configured to automatically perform the process of sewing pockets on textile workpieces (100) in mass production. Said workpiece (100) can be any textile suitable for sewing pockets on. In the embodiment described in the figures, the workpiece (100) is preferably a clothing product, and a kangaroo pocket is sewn on the workpiece (100) in the pocket sewing machine (10).

[0030] The pocket sewing machine (10) comprises at least one main framework (11). Said main framework (11 ) comprises at least one folding apparatus (20), at least one carrier (30), at least one sewing machine (40) and at least one stacker (50) and serves as the main carrier body for these elements. The main framework (11) comprises at least one main table (12) for placing the workpiece (100) to be subjected to pocket sewing process. Said main table (12) is a flat bench surface suitable for positioning the workpiece (100) thereon.

[0031] The folding apparatus (20) folds the edges of the pocket to be sewn to the workpiece (100). The sewing machine (40) is the member that sews the pocket on the workpiece (100). The carrier (30) serves to transport the workpiece (100) and the pocket, which are placed on top of each other in the folding apparatus (20), to the working area of the sewing machine (40). The stacker (50), on the other hand, stacks the sewn workpieces (100) on top of each other. The folding apparatus (20) includes at least one lower folding apparatus (21 ) and at least one upper folding apparatus (22). The lower folding apparatus (21) comprises at least one pocket platform (212). The workpieces (100) on which pockets are to be sewn are first brought in alignment to said pocket platform (212) and placed on the main table (12) at a predetermined position at this alignment. The pocket sewing machine (10) comprises at least one marker (not shown in the figures) to indicate the initial position the workpiece (100) will be placed in. Said marker is preferably configured to indicate the position of the workpiece (100) with a laser. However, the marker indicating the position of the workpiece (100) can also be a pencil, magnetic stop gauge, line, paint, score, sticker, acrylic, notch.

[0032] The pocket to be sewn to the workpiece (100) positioned on the main table (12) is placed on the pocket platform (212). Here, the workpiece (100) and the pocket are placed in their respective positions preferably by an operator. The lower folding apparatus (21) comprises at least one lower folding movement mechanism (211 ). Said lower folding movement mechanism (211) moves the pocket platform (212) in the direction of a y-axis (y). The y-axis (y) is an axis parallel to the main table (12) plane. Accordingly, the pocket platform (212) is retracted in the starting position to leave the main table (12) free to accommodate the workpiece (100). After placing the workpiece (100) in the position marked by the marker, the operator activates the lower folding movement mechanism (211 ) from a command unit so that the pocket platform (212) is placed above the workpiece (100) in the direction of the y-axis (y).

[0033] The pocket platform (212) comprises at least one main plate (212.1 ) and at least one movable extension. The pocket platform (212) is provided with two movable extensions, preferably on opposite sides of the main plate (212.1 ). Depending on the pocket to be sewn, the form of the main plate (212.1 ) and the number of movable extensions can be determined in advance. The movable extension can move relative to the main plate (212.1) and move away from the main plate (212.1 ) and approach the main plate (212.1). The movable extension and the main plate (212.1) are essentially located in the same plane, i.e. at the same distance from the main table (12). The pocket platform (212) comprises at least one adjustment mechanism to provide the movable extension with said movement. With said adjustment mechanism and movable extensions, the area of the pocket platform (212) can be expanded or contracted, and the pocket platform (212) can be made suitable for different pockets. The folding process of the pocket placed on the pocket platform (212) is performed by the upper folding apparatus (22). Accordingly, the upper folding apparatus (22) comprises at least one upper folding plate (222). Said upper folding plate (222) supports the pocket on the pocket platform (212) from the top for the folding process. The upper folding plate (222) comprises at least one folding plate (223). The number of folding plates (223) can be predetermined according to the shape of the pocket to be sewn.

[0034] The folding plate (223) can be moved by at least one folding drive member (224) towards the upper folding plate (222) and in opposite direction. The folding plate (223) is positioned in a z-axis (z) perpendicular to the plane of the main table (12) such that it is lower than the upper folding plate (222) and closer to the main table (12). In this way, when the folding plates (223) are pulled towards the upper folding plate (222), it is ensured that the allowances on the edges of the pocket are folded. The upper folding apparatus (22) is connected to at least one upper folding movement mechanism (221). Said upper folding movement mechanism (221) moves the upper folding plate (222) in the direction of a y-axis (y). Thus, the pocket platform (212) and the upper folding plate (222) can be aligned for the folding process.

[0035] After the folding process is completed, the carrier (30) takes and carries to the sewing machine (40) the workpiece (100) and the pocket positioned on top of each other. The main table (12) is provided with a sewing section (121) where the sewing machine (40) performs the sewing process. The carrier (30) transfers the workpiece (100) and the pocket to said sewing section (121 ). The carrier (30) comprises at least one carrier plate (32) and at least one holding frame (33). Said carrier plate (32) is the surface of the carrier (30) in contact with the pocket. Said holding frame (33) is the surface of the carrier (30) in contact with the workpiece (100). There is at least one sewing space (34) between the carrier plate (32) and the holding frame (33) for the operation of the needle of the sewing machine (40). The carrier plate (32) and the holding frame (33) are pre-sized according to the workpiece (100) and the pocket to be sewn and configured with a suitable sewing space (34) therebetween.

[0036] The carrier (30) comprises at least one carrier movement mechanism (31). Said carrier movement mechanism (31 ) moves the carrier plate (32) and the holding frame (33) in the x-axis (x), y-axis (y), and z-axis (z) directions. Said x-axis (x) is an axis parallel to the main table (12) and perpendicular to the y-axis (y). The carrier movement mechanism (31) holds the needle of the sewing machine (40) in the sewing space (34) during the sewing process, moving the workpiece (100) and the pocket together, thereby performing the sewing process is along the predetermined path.

[0037] The sewn workpieces (100) are taken by the stacker (50) located adjacent to a side edge (122) of the main table (12) and stacked on top of each other. To this end, the stacker (50) comprises at least one suspension body (54). The sewn workpieces (100) are laid on said suspension body (54). The stacker (50) comprises at least one first arm (52) adjacent to the suspension body (54). The first arm (52) and the suspension body (54) run parallel to the side edge (122) in the direction of the x-axis (x). To take the workpiece from the main table (12) to the stacker (50), the carrier (30) carries the workpiece (100) on the main table (12) towards the stacker (50). As a result, the workpiece (100) hangs partially downwards on the z-axis (z).

[0038] The first arm (52) is connected to at least one first arm drive member (521). Said first arm drive member (521) moves the first arm (52) on the y-axis (y). When the first arm (52) moves on the y-axis (y) away from the main table (12), it hits the suspension body (54). In the meantime, the workpiece (100) hanging down from the main table (12) gets stuck between the suspension body (54) and the first arm (52).

[0039] The stacker (50) comprises at least one second arm (53), and said second arm (53) is connected to at least one second arm drive member (531 ). The second arm (53) also extends in the x-axis (x) direction parallel to the first arm (52) and the suspension body (54). The second arm drive member (531 ) can move the second arm (53) in the y-axis (y) direction. The second arm drive member (531) is movable to position the second arm (53) on either side of a suspension axis (a) passing essentially through the center of the suspension body (54). The stacker (50) is connected to at least one stacker movement mechanism (51 ). Said stacker movement mechanism (51 ) moves the stacker (50) on the main framework (11) in the direction of the x-axis (x).

[0040] In the light of all the explanations, the pocket sewing machine (10) of the invention fulfills its function as follows: The workpiece (100) is placed by an operator in the position marked with a marker on the main table (12). The operator then actuates the lower folding apparatus (21) with the command unit. Here, the movable plates are pre-positioned by the adjustment mechanism in relation to the pocket to be sewn. The operator places the pocket on the pocket platform (212) and then actuates the upper folding apparatus (22) with the command unit. As a result, the upper folding plate (222) is aligned with the pocket platform (212). Here, the upper folding plate (222) presses the pocket against the pocket platform (212), while the folding plates (223) move, allowing the edges of the pocket to be folded. Thus, the folding process is completed.

[0041] After the folding process is finished, the carrier (30) moves over the workpiece (100) and the pocket, applying pressure on the two elements towards the main table (12) and moving the workpiece (100) and pocket towards the sewing region. Just before the carrier (30) starts its movement, the pocket platform (212) is retracted on the y-axis (y) away from the side edge (122). Here, the movable extensions approach the main plate (212.1) before the movement of the pocket platform (212) starts. Thus, since the total area of the pocket platform (212) is reduced, it is easier for the pocket platform (212) to be freed from the pocket and the form of the pocket is prevented from deforming at this stage. When the carrier (30) brings the workpiece (100) together with the pocket to the sewing section (121), the workpiece (100) is positioned so that the needle of the sewing machine (40) remains in the sewing space (34) and the sewing machine (40) is activated.

[0042] After the sewing is completed, the carrier (30) brings the workpiece (100) towards the side edge (122). As a result, the workpiece (100) hangs down by gravity from the side edge (122) in the direction of the z-axis (z) and is partially positioned between the first arm (52) and the suspension body (54). When the drive element of the first arm (52) actuates, the first arm (52) moves on the y-axis (y) to contact the suspension body (54). In this process, the workpiece (100) is stuck between the first arm (52) and the suspension body (54). The second arm drive member (531) then moves the second arm (53) in the y-axis (y). In the position shown in the figures, the second arm (53) is in the starting position. When the second arm (53) is moved away from the main table (12) in the direction of the y-axis (y), it passes to the side of the suspension axis (a) away from the main table (12). During this movement, the second arm (53) also moves the workpiece (100), which is held between the first arm (52) and the suspension body (54) and is still partially laid over the main table (12). Afterwards, the workpiece (100) on the movement path of the second arm (53) is separated from the main table (12) and is laid on the suspension apparatus by turning upside down relative to the main table (12).

[0043] In the pocket sewing machine (10), the transitions between the process steps can be controlled by the operator. However, in a possible embodiment, the control of these transitions is automatically provided by a control unit. In the pocket sewing machine (10), said movement mechanisms and drive members can include drive members such as pistons, ball screws, servo motors.

[0044] With the pocket sewing machine (10) of the invention, marking, pressing, folding, and sewing operations are gathered in a single framework and the pocket sewing process is reduced to a single process. Since the sewing process is programmed automatically, operator-based errors do not occur. Since the use of the machine does not require significant experience, an operator with a short period of training will be able to operate the pocket sewing machine (10) of the invention. The zigzag stitch process, which is done on another machine after the sewing is finished, is done automatically on the pocket sewing machine (10) and no other machine is required.

[0045] The scope of protection of the invention is specified in the appended claims and cannot be limited to what is described for illustrative purposes in this detailed description. It is clear that a person skilled in the art can produce similar embodiments in the light of what is explained above, without deviating from the main theme of the invention.

[0046] REFERENCE NUMERALS GIVEN IN DRAWING

[0047] 10 Pocket Sewing Machine

[0048] 11 Main Framework

[0049] 12 Main Table

[0050] 121 Sewing Section

[0051] 122 Side Edge

[0052] 20 Folding Apparatus

[0053] 21 Lower Folding Apparatus 211 Lower Folding Movement Mechanism

[0054] 212 Pocket Platform

[0055] 212.1 Main Plate

[0056] 22 Upper Folding Apparatus

[0057] 221 Upper Folding Movement Mechanism

[0058] 222 Upper Folding Plate

[0059] 223 Folding Plate

[0060] 224 Folding Drive Member

[0061] 30 Carrier

[0062] 31 Carrier Movement Mechanism

[0063] 32 Main Plate

[0064] 33 Holding Frame

[0065] 34 Sewing Space

[0066] 40 Sewing Machine

[0067] 50 Stacker

[0068] 51 Stacker Movement Mechanism

[0069] 52 First Arm

[0070] 521 First Arm Drive Member

[0071] 53 Second Arm

[0072] 531 Second Arm Drive Element

[0073] 54 Suspension Body

[0074] 100 Workpiece

[0075] (a) Suspension Axis

[0076] (x) x-Axis

[0077] (y) y-Axis

[0078] (z) z-Axis

Claims

CLAIMS1. A pocket sewing machine (10) for sewing pockets on textile workpieces (100), characterized in that it comprises at least one main framework (11 ) having at least one main table (12) for placing the workpiece (100) on which the pocket is to be sewn, and said main framework (11) comprises; at least one folding apparatus (20) in which the folding process for the pocket is performed, at least one sewing machine (40) for sewing the pocket to the workpiece (100), at least one carrier (30) for carrying the pocket and the workpiece (100) after performing the folding process to at least one sewing section (121) where said sewing machine (40) performs the sewing process on said main table (12) and at least one stacker (50) for stacking the workpieces (100) on top of each other, which takes the workpieces (100) with pockets sewn onto them from the main table (12).

2. A pocket sewing machine (10) according to Claim 1 , characterized in that it comprises at least one marker, which serves to indicate the position of the workpiece (100) to be placed on the main table (12) for the folding process.

3. A pocket sewing machine (10) according to Claim 2, characterized in that said marker is a laser marker.

4. A pocket sewing machine (10) according to Claim 1 , characterized in that said folding apparatus (20) comprises at least one pocket platform (212) on which the pocket is placed, and at least one upper folding plate (222) applying pressure to the workpiece (100) on said pocket platform (212) towards the pocket platform (212), and comprises at least one folding plate (223) which can be moved by at least one folding drive member (224) towards said upper folding plate (222) and in opposite direction to perform the folding process and which is positioned closer in alignment to the pocket platform (212) than the upper folding plate (222).

5. A pocket sewing machine (10) according to Claim 4, characterized in that the pocket platform (212) comprises at least one main plate (212.1) and at least onemovable extension which can be moved by at least one adjustment mechanism towards said main plate (212.1 ) and in opposite direction.

6. A pocket sewing machine (10) according to Claim 1 , characterized in that the folding apparatus (20) comprises at least one lower folding movement mechanism (211 ) for moving at least one pocket platform on which the pocket is placed on the main table (12) towards a side edge (122) of the main table (12) in the direction of at least one y-axis (y) parallel to the surface of the main table (12).

7. A pocket sewing machine (10) according to Claim 4, characterized in that the folding apparatus (20) comprises at least one upper folding movement mechanism (221 ) for moving the upper folding plate (222) towards a side edge (122) of the main table (12) in the direction of at least one y-axis (y) parallel to the surface of the main table (12) to align it with the pocket platform (212) for the folding process.

8. A pocket sewing machine (10) according to Claim 1 , characterized in that the carrier (30) comprises at least one carrier plate (32) providing contact with the pocket and at least one holding frame (33) providing contact with the workpiece (100), said carrier plate (32) and said holding frame (33) comprising at least one sewing space (34) therebetween allowing the needle of the sewing machine (40) to operate.

9. A pocket sewing machine (10) according to Claim 1 , characterized in that it comprises at least one carrier movement mechanism (31 ) for moving the carrier (30) in the directions of an x-axis (x) parallel to the surface of the main table (12) and a y-axis (y) perpendicular to said x-axis (x).

10. A pocket sewing machine (10) according to Claim 1 , characterized in that the stacker (50) is positioned adjacent to a side edge (122) of the main table (12), comprises at least one suspension body (54) on which the sewn workpieces (100) are laid and which extends parallel to the side edge (122) of the main table (12), and comprises at least one first arm (52) which is moved by at least one first arm drive member (521) away from the side edge (122) so as to contact the suspension body (54) and which extends parallel to the suspension body (54).

11. A pocket sewing machine (10) according to Claim 10, characterized in that it comprises at least one second arm (53) extending parallel to the suspension body (54), which can be moved by at least one second arm drive member (531) from the side facing the side edge (122) to the side away from the side edge (122) of a suspension axis (a) passing through the center of the suspension body (54).

12. A pocket sewing machine (10) according to Claim 1 , characterized in that it comprises at least one stacker movement mechanism (51) for moving the stacker (50) on the main framework (11 ) in an x-axis (x) parallel to the side edge (122) of the main table (12).

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