Automatic thread trimming bartacking machine

Abstract

The utility model is suitable for the field of sewing machines, and provides an automatic thread trimming bartacking machine which comprises a machine frame, a working plate and a bartacking machine body are fixedly arranged at the upper end of the machine frame, a thread falling opening is fixedly formed in the middle of the working plate, a baffle is fixedly arranged on one side of the lower end of the thread falling opening, and a cutter groove is fixedly formed in the middle of the baffle. The device further comprises a thread trimming device and a feeding unit. Through the arrangement of the thread falling opening, when the bartacking work is finished, redundant thread residues fall from the thread falling opening, the thread residues are pressed on the baffle through the arrangement of the pressing block in cooperation with the rubber mat, the thread residues can be tightened, and therefore the tightened thread residues can be cut off conveniently through the arrangement of the cutting knife in cooperation with the reserved knife groove; compression of the pressing block and cutting of the cutter can be controlled by controlling the air cylinder, and compared with an existing bar tacking machine, the bar tacking machine is more convenient to use and better and faster in cutting effect.

Description

Technical Field

[0001] The utility model belongs to the field of sewing machines, and particularly relates to an automatic thread-cutting bartack machine. Background Art

[0002] A bartack machine is a special sewing equipment, also known as a button sewing machine or a knotting machine, mainly used for reinforcing stitches and specific sewing processes. It is particularly important in garment manufacturing and can make the seams of clothes more durable and stable.

[0003] When using a bartack machine, in order to avoid the loosening of the thread ends, usually a section of redundant thread ends is reserved, folded and then stitched and fixed for the second time. Then the remaining thread ends are cut by hand. This process is cumbersome, error-prone and time-consuming. Content of the Utility Model

[0004] The purpose of the embodiment of the utility model is to provide an automatic thread-cutting bartack machine, aiming at solving the problems put forward in the background art.

[0005] The embodiment of the utility model is realized as follows. An automatic thread-cutting bartack machine includes a frame. A working plate and a bartack machine main body are fixedly arranged at the upper end of the frame. The automatic thread-cutting bartack machine further includes:

[0006] A thread dropping port, which is fixedly arranged in the middle of the working plate. One side of the lower end of the thread dropping port is fixedly provided with a baffle, and a knife groove is fixedly arranged in the middle of the baffle.

[0007] A thread cutting device, which includes two groups of pressing blocks symmetrically arranged on the other side of the thread dropping port. Rubber pads are fixedly arranged on one side of each of the two groups of pressing blocks. One ends of movable rods are fixedly arranged on the other side of each of the two groups of pressing blocks. Springs are movably sleeved on the outer sides of the movable rods. The other ends of the movable rods penetrate through a connecting plate and extend to the other side of the connecting plate to be fixedly connected with a stop block. A cutting knife for cutting the thread is arranged between the two groups of pressing blocks. The cutting knife is clamped in a knife clip. A fixing pin for fixing is arranged between the cutting knife and the knife clip. One end of a fixing rod is fixedly arranged on one side of the knife clip, and the fixing rod is fixedly connected with one side of the connecting plate.

[0008] A feeding unit, which includes a cylinder fixedly arranged on the bottom surface of the working plate. A supporting plate for supporting is further arranged on one side of the connecting plate. The piston rod of the cylinder penetrates through the supporting plate and is fixedly connected with one side of the connecting plate.

[0009] As a further scheme of the utility model: A chassis for protection is further fixedly arranged below the working plate. The chassis is arranged in a box structure. An insertion plate is arranged at the bottom of the chassis. Insertion strips are integrally formed on both sides of the insertion plate. Guide grooves adapted to the insertion strips are fixedly arranged at the positions of the chassis corresponding to the insertion strips.

[0010] As a further solution of the present utility model: the wire dropping port is set as a square hole with a chamfer at the upper end, the baffle is set as an "L" - shaped structure, and the knife groove is set as a long groove with a size larger than the cross - section of the cutting knife.

[0011] As a further solution of the present utility model: the pressing block is set as a block - shaped structure, and the rubber pad is set as a rubber structure with the same area as one side of the pressing block.

[0012] As a further solution of the present utility model: the cutting knife is set as a right - angled trapezoid structure, and the hypotenuse part of the cutting knife is set as a cutting edge.

[0013] An automatic thread - cutting bartack machine provided by an embodiment of the present utility model, through the provided wire dropping port, when the bartack work is coming to an end, the redundant thread ends fall from the wire dropping port. By setting the pressing block cooperating with the rubber pad to press the thread ends tightly on the baffle, the thread ends can be tightened, so that it is convenient to cut the tightened thread ends through the provided cutting knife cooperating with the reserved knife groove. The pressing of the pressing block and the cutting of the cutting knife can be controlled by controlling the air cylinder. Compared with the existing bartack machine, it is more convenient, and the cutting effect is better and faster. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is the overall structure diagram of an automatic thread - cutting bartack machine provided by an embodiment of the present utility model;

[0015] Figure 2 It is the partial three - dimensional structure diagram of an automatic thread - cutting bartack machine provided by an embodiment of the present utility model;

[0016] Figure 3 It is the partial exploded view of an automatic thread - cutting bartack machine provided by an embodiment of the present utility model.

[0017] In the drawings: frame 1, working plate 2, chassis 21, guide groove 211, insertion plate 22, insertion bar 221, bartack machine main body 3, wire dropping port 4, baffle 5, knife groove 6, thread - cutting device 7, pressing block 8, rubber pad 9, movable rod 10, stop block 101, spring 11, connecting plate 12, cutting knife 13, knife clip 14, fixing pin 15, fixing rod 16, feeding unit 17, air cylinder 18, support plate 19. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model, and are not used to limit the present utility model.

[0019] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0020] Such as Figures 1 to 3As shown in the figure, an automatic thread-cutting bartacking machine provided by an embodiment of the present utility model includes a frame 1. A working plate 2 and a bartacking machine main body 3 are fixedly arranged at the upper end of the frame 1. It further includes:

[0021] A thread dropping port 4, the thread dropping port 4 is fixedly arranged in the middle of the working plate 2. One side of the lower end of the thread dropping port 4 is fixedly provided with a baffle 5, and a knife groove 6 is fixedly arranged in the middle of the baffle 5;

[0022] A thread-cutting device 7, the thread-cutting device 7 includes two groups of pressing blocks 8 symmetrically arranged on the other side of the thread dropping port 4. Rubber pads 9 are fixedly arranged on one side of the two groups of pressing blocks 8. One end of a movable rod 10 is fixedly arranged on the other side of the two groups of pressing blocks 8. A spring 11 is movably sleeved on the outer side of the movable rod 10. The other end of the movable rod 10 penetrates through a connecting plate 12 and extends to the other side of the connecting plate 12 and is fixedly connected with a stop block 101. A cutter 13 for cutting the thread is arranged between the two groups of pressing blocks 8. The cutter 13 is clamped in a tool holder 14. A fixing pin 15 for fixing is arranged between the cutter 13 and the tool holder 14. One end of a fixing rod 16 is fixedly arranged on one side of the tool holder 14, and the fixing rod 16 is fixedly connected with one side of the connecting plate 12;

[0023] A feeding unit 17, the feeding unit 17 includes an air cylinder 18 fixedly arranged on the bottom surface of the working plate 2. A supporting plate 19 for support is further arranged on one side of the connecting plate 12. The piston rod of the air cylinder 18 penetrates through the supporting plate 19 and is fixedly connected with one side of the connecting plate 12.

[0024] In an embodiment of the present utility model, through the arranged thread dropping port 4, when the bartacking work is coming to an end, the redundant thread ends fall from the thread dropping port 4. By arranging the pressing blocks 8 in cooperation with the rubber pads 9 to press the thread ends tightly on the baffle 5, the thread ends can be tightened, so that it is convenient to cut the tightened thread ends through the arranged cutter 13 in cooperation with the reserved knife groove 6. The pressing of the pressing blocks 8 and the cutting of the cutter 13 can be controlled by controlling the air cylinder 18. Compared with the existing bartacking machine, it is more convenient, and the cutting effect is better and faster.

[0025] In an example of the present utility model, during use, the redundant thread ends fall from the thread dropping port 4. By extending the piston rod of the air cylinder 18 to push the connecting plate 12, the pressing blocks 8 and the cutter 13 move together. When the rubber pad 9 arranged on one side of the pressing block 8 contacts the side surface of the baffle 5, the air cylinder 18 continues to extend. At this time, the position of the pressing block 8 remains unchanged, and the spring 11 is compressed and applies pressure to the side surface of the baffle 5, thereby pressing the thread ends tightly. At this time, the cutter 13 continues to move along with the extension of the air cylinder 18, and the thread is cut by the cutting edge on one side of the cutter 13.

[0026] Such as Figure 3As shown, as a preferred embodiment of the present utility model, a chassis 21 for protection is fixedly arranged below the working plate 2. The chassis 21 is arranged in a box structure. A plug board 22 is arranged at the bottom of the chassis 21. Plug strips 221 are integrally formed on both sides of the plug board 22 and are arranged in one piece with the plug board 22. Guide grooves 211 adapted to the plug strips 221 are fixedly arranged at the positions of the chassis 21 corresponding to the plug strips 221.

[0027] In an example of the present utility model, through the arranged chassis 21 and plug board 22, the whole wire cutting device 7 can be encapsulated, which can prevent personnel from being squeezed or cut. Through the pull-out design of the plug board 22, the cut wire heads in the chassis 21 can also be taken out, avoiding the internal structure of the wire cutting device 7 being wound by wires.

[0028] As Figure 2 and Figure 3 As shown, as a preferred embodiment of the present utility model, the wire dropping port 4 is arranged as a square hole with a chamfer at the upper end. The baffle 5 is arranged in an "L" shape. The knife groove 6 is arranged as a long groove with a size larger than the cross-section of the cutting knife 13.

[0029] In an example of the present utility model, through the arranged wire dropping port 4, after the bartack, the redundant wire heads can naturally drop through the wire dropping port 4 under the action of gravity. Through the "L" shape of the arranged baffle 5, it is convenient for the fixed installation of the baffle 5. Through the reserved gap of the arranged knife groove 6, it is convenient for the cutting knife 13 to cut the wire heads.

[0030] As Figure 3 As shown, as a preferred embodiment of the present utility model, the pressing block 8 is arranged in a block structure. The rubber pad 9 is arranged as a rubber structure with the same area as one side of the pressing block 8. The cutting knife 13 is arranged in a right trapezoidal structure, and the hypotenuse part of the cutting knife 13 is arranged as a blade.

[0031] In an example of the present utility model, through the arranged rubber pad 9, the effect of squeezing and fixing the wire heads can be improved. By arranging the cutting knife 13 in a right trapezoidal structure and cooperating with the extension of the piston rod of the cylinder 18, the cutting knife 13 can easily cut the wire heads without being too sharp, indirectly improving the service life of the cutting knife 13.

[0032] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present invention. Any reference signs in the claims should not be construed as limiting the claimed invention.

[0033] It should be noted that, without conflict, the embodiments in the present utility model and the features in the embodiments can be combined with each other.

[0034] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present utility model, unless otherwise stated, the meaning of "a plurality of" is two or more.

[0035] In the description of the present utility model, it should be noted that unless otherwise clearly defined and limited, the terms "mounted", "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood through specific situations.

[0036] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An automatic thread trimming and bar tacking machine, comprising a frame (1), a working plate (2) and a bar tacking machine body (3) being fixedly arranged on the upper end of the frame (1), characterized in that: Also includes: A wire drop opening (4), the wire drop opening (4) being fixedly arranged in the middle of the working plate (2), a baffle (5) being fixedly arranged on one side of the lower end of the wire drop opening (4), and a knife groove (6) being fixedly arranged in the middle of the baffle (5); A wire cutting device (7), the wire cutting device (7) comprising two groups of pressure blocks (8) symmetrically arranged on the other side of the wire drop port (4), one side of the two groups of pressure blocks (8) being fixedly provided with a rubber pad (9), the other side of the two groups of pressure blocks (8) being fixedly provided with one end of a movable rod (10), a spring (11) being provided on the outer movable sleeve of the movable rod (10), the other end of the movable rod (10) passing through the connecting plate (12) and extending to the other side of the connecting plate (12) and being fixedly connected to a stopper (101), a cutting knife (13) for wire cutting being arranged between the two groups of pressure blocks (8), the cutting knife (13) being engaged in a knife clamp (14), a fixing pin (15) for fixing being arranged between the cutting knife (13) and the knife clamp (14), one side of the knife clamp (14) being fixedly provided with one end of a fixing rod (16), the fixing rod (16) being fixedly connected to one side of the connecting plate (12); A feeding unit (17), the feeding unit (17) comprising a cylinder (18) fixedly arranged on the bottom surface of the working plate (2), a support plate (19) for support is also arranged on one side of the connecting plate (12), and a piston rod of the cylinder (18) penetrates the support plate (19) and is fixedly connected to one side of the connecting plate (12).

2. The automatic thread trimming and bar tacking machine according to claim 1, characterized in that: A chassis (21) for protection is also fixedly arranged below the working plate (2); the chassis (21) is arranged in a box-shaped structure; a plug board (22) is arranged at the bottom of the chassis (21); plug strips (221) are integrally formed with the plug board (22) and arranged on both sides of the plug board (22); guide grooves (211) adapted to the plug strips (221) are fixedly arranged at positions of the chassis (21) corresponding to the plug strips (221).

3. The automatic thread trimming and bar tacking machine according to claim 2, characterized in that: The wire drop opening (4) is configured as a square hole with a chamfered upper end, the baffle (5) is configured as an "L"-shaped structure, and the knife groove (6) is configured as a long groove having a size larger than the cross section of the cutting knife (13).

4. The automatic thread trimming and bar tacking machine according to claim 3, characterized in that: The pressing block (8) is configured as a block structure, and the rubber pad (9) is configured as a rubber structure with one side having the same area as the pressing block (8).

5. The automatic thread trimming and bar tacking machine according to claim 4, characterized in that: The cutting knife (13) is configured as a right-angled trapezoidal structure, and the oblique edge portion of the cutting knife (13) is configured as a cutting edge.

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