Flat plate type sewing machine

Abstract

The utility model belongs to the technical field of sewing equipment, and particularly relates to a flat plate type sewing machine. Comprising a bottom plate, a connecting plate seat mounting groove is formed in the end, corresponding to the position of a machine needle, of the bottom plate, one end of the connecting plate seat mounting groove is located above a supporting plate, provided with a rotating shuttle shaft, of the bottom plate, a connecting plate seat is arranged in the connecting plate seat mounting groove and connected with the bottom plate through a fastener, and a needle plate mounting groove is formed in the connecting plate seat. The needle plate is mounted in the needle plate mounting groove through a fastener; one end of the connecting plate seat is mounted on the bottom plate, and the supporting plate and the bottom plate are of an integrated structure, so that breakage is avoided. And the needle plate is arranged on the connecting plate seat, so that the problem can be solved only by replacing the connecting plate seat even if the connecting part of the needle plate and the connecting plate seat is broken, the replacement is convenient, only the fastener needs to be disassembled, the problem that the whole machine is scrapped is avoided, the use cost of a machine using enterprise is reduced, and the service life of the machine is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sewing equipment technical field, and specifically relates to a flat bed sewing machine. BACKGROUND

[0002] The needle plate mounting structure of the existing sewing machine is as follows: a needle plate mounting groove is arranged on the bottom plate of the sewing machine, two mounting lugs extending towards the center are arranged on the needle plate mounting groove, the needle plate is arranged in the needle plate mounting groove and is fixedly connected with the mounting lugs through screws.

[0003] The bottom plate of the sewing machine is usually made of cast iron. When the sewing machine is working, a coverer is usually used, and the needle plate is frequently disassembled and assembled. During the disassembly and assembly process, the thread hole of the needle plate is often slipped and the mounting lug is often broken. Therefore, the bottom plate needs to be replaced. However, since the structure of the sewing machine is complex, the lower shaft, the cloth feeding mechanism, the rotating shuttle and the like are arranged on the bottom plate, and the connection of the head part and the like is also involved, so the disassembly and assembly are very complex, and the whole machine is usually scrapped. SUMMARY

[0004] The utility model aims at providing a flat bed sewing machine which does not need to be scrapped even if the needle plate mounting part is broken.

[0005] The utility model is implemented in the following manner:

[0006] A flat bed sewing machine is provided with a connecting plate seat mounting groove on one end of the bottom plate corresponding to the position of the needle, the connecting plate seat is arranged in the connecting plate seat mounting groove and is connected with the bottom plate through fasteners, the needle plate mounting groove is arranged on the connecting plate seat, and the needle plate is arranged in the connecting plate seat mounting groove through fasteners.

[0007] In the above flat bed sewing machine, one end of the connecting plate seat mounting groove is located above the support plate on which the shuttle shaft is arranged on the bottom plate, and the connecting plate seat is connected with the support plate.

[0008] In the above flat bed sewing machine, the connecting plate seat mounting groove is a first groove which is arranged downwards from the upper surface of the bottom plate, the groove bottom of the first groove is provided with a first U-shaped stop edge, one end of the first U-shaped stop edge is located on the support plate on which the shuttle shaft is arranged on the bottom plate, a first threaded hole is arranged on the support plate, and the connecting plate seat is supported on the first U-shaped stop edge.

[0009] In the above flat bed sewing machine, the outer side wall of the connecting plate seat is tightly connected with the side wall of the connecting plate seat mounting groove.

[0010] In the flat bed sewing machine, the needle plate mounting groove is a second groove opened downward from the connecting plate seat upper surface, the groove bottom of the second groove has a second U-shaped retaining edge, mounting lugs are respectively extended from both sides of the second U-shaped retaining edge towards the center, second threaded holes are arranged on the mounting lugs, and the needle plate is supported on the second U-shaped retaining edge.

[0011] In the flat bed sewing machine, the connecting plate seat is a metal plate.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] One end of the connecting plate seat is mounted on the bottom plate, the needle plate is arranged on the connecting plate seat, even if the connecting part of the needle plate and the connecting plate seat is broken, the problem can be solved by only replacing the connecting plate seat, replacement is convenient, only fasteners need to be disassembled, the problem of the whole machine being scrapped is avoided, the use cost of the machine using enterprise is reduced, and the service life of the machine is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Fig. 1 It is an explosion schematic view of the utility model;

[0015] Fig. 2 It is a schematic view of the bottom plate of the utility model;

[0016] Fig. 3 It is a schematic view of the connecting plate seat of the utility model.

[0017] In the drawing: 1, bottom plate; 2, machine head; 3, needle; 4, opening groove; 5, connecting plate seat mounting groove; 6, push plate groove; 7, supporting plate; 8, connecting plate seat; 9, needle plate mounting groove; 10, needle plate; 11, push plate; 12, first threaded hole; 13, first mounting hole; 14, second U-shaped retaining edge; 15, mounting lug; 16, second threaded hole; 17, second mounting hole; 18, first U-shaped retaining edge. DETAILED DESCRIPTION

[0018] The utility model will be further described in the specific embodiment:

[0019] For example, Figs. 1-3As shown, the utility model provides a flat bed sewing machine, this sewing machine includes bottom plate 1 and set up on bottom plate 1 head 2, correspond to the one end of needle 3 on bottom plate 1 is provided with open slot 4, the open slot 4 includes connecting plate seat installation slot 5 and push plate slot 6, connecting plate seat 8 is arranged in connecting plate seat installation slot 5 and is connected with bottom plate 1 by fastener.In this embodiment, the one end of connecting plate seat installation slot 5 is located above the support plate 7 of the bobbin shaft installed on bottom plate 1, and the connecting plate seat 8 is connected on the support plate 7 by fastener.Needle plate installation slot 9 is provided on the connecting plate seat 8, and the needle plate 10 is detachably arranged in the needle plate installation slot 9 by fastener, and the push plate 11 is arranged in the push plate slot 6.

[0020] The connecting plate seat 8 of the utility model is installed on the bottom plate 1, and the needle plate 10 is arranged on the connecting plate seat 8, even if the connecting part of the needle plate 10 and the connecting plate seat 8 breaks, the problem can be solved by replacing the connecting plate seat 8, which is convenient to replace, only needs to disassemble the fastener, avoids the problem of the whole machine being scrapped, reduces the use cost of the machine using enterprise, and prolongs the service life of the machine.

[0021] Further, the connecting plate seat installation slot 5 is a first groove opened downward from the upper surface of the bottom plate 1, the groove bottom of the first groove has a first U-shaped stop edge 18, one end of the first U-shaped stop edge 18 is located on the support plate 7 of the bobbin shaft installed on the bottom plate 1, a first threaded hole 12 is arranged on the support plate 7, a first mounting hole 13 is arranged at a corresponding position on the connecting plate seat 8, the connecting plate seat 8 is installed and fixed by being screwed into the first threaded hole 12 through the first mounting hole 13, and the connecting plate seat 8 is supported on the first U-shaped stop edge 18.

[0022] Generally, the outer side wall of the connecting plate seat 8 is tightly connected with the side wall of the needle plate seat installation slot 5. The use of the edge cover during work is avoided, which causes the displacement of the needle plate 10 and causes the sewing performance to decrease.

[0023] Similarly, the needle plate installation slot 9 is a second groove opened downward from the upper surface of the connecting plate seat 8, the groove bottom of the second groove has a second U-shaped stop edge 14, mounting lugs 15 are respectively extended towards the center on the two side walls of the second U-shaped stop edge 14, a second threaded hole 16 is arranged on the mounting lug 15, a second mounting hole 17 is arranged at a corresponding position on the needle plate 10, a screw is screwed into the second threaded hole 16 through the second mounting hole 17 to realize the installation of the needle plate 10 and the connecting plate seat 8, and the needle plate 10 is supported on the second U-shaped stop edge 14.

[0024] It should be noted that the connecting plate seat 8 of the utility model is a metal plate, specifically a stainless steel plate, an alloy plate, etc. The metal plate has high strength and is not easy to break.

[0025] The above embodiment is only one of the preferred embodiments of the present application, and does not limit the scope of the present application, so that: all equivalent changes made according to the shape, structure, principle of the present application should be covered within the protection scope of the present application.

Claims

1. A flatbed sewing machine, comprising a base plate (1), characterized in that: A connecting plate mounting groove (5) is provided at one end of the base plate (1) corresponding to the position of the needle (3). The connecting plate base (8) is set in the connecting plate mounting groove (5) and connected to the base plate (1) by fasteners. A needle plate mounting groove (9) is provided on the connecting plate base (8). The needle plate (10) is installed in the needle plate mounting groove (9) by fasteners.

2. A flatbed sewing machine according to claim 1, characterized in that: One end of the mounting groove (5) of the connecting plate seat is located above the support plate (7) on the base plate (1) where the rotary shaft is mounted, and the connecting plate seat (8) is connected to the support plate (7).

3. A flatbed sewing machine according to claim 1, characterized in that: The connecting plate seat mounting groove (5) is a first groove opened from the upper plane of the base plate (1) downward. The bottom of the first groove has a first U-shaped flange (18). One end of the first U-shaped flange (18) is located on the support plate (7) on the base plate (1) for mounting the shuttle shaft. A first threaded hole (12) is provided on the support plate (7). The connecting plate seat (8) is supported on the first U-shaped flange (18).

4. A flatbed sewing machine according to claim 1, 2, or 3, characterized in that: The outer wall of the connecting plate seat (8) is tightly fitted to the side wall of the connecting plate seat mounting groove (5).

5. A flatbed sewing machine according to claim 1, characterized in that: The needle plate mounting groove (9) is a second groove opened from the upper plane of the connecting plate seat (8) downward. The bottom of the second groove has a second U-shaped baffle (14). On both sides of the second U-shaped baffle (14), there are mounting lugs (15) extending towards the center. A second threaded hole (16) is provided on the mounting lug (15). The needle plate (10) is supported on the second U-shaped baffle (14).

6. A flatbed sewing machine according to claim 1 or 5, characterized in that: The connecting plate seat (8) is a metal plate.

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