Computerized lockstitch sewing machine convenient for die replacement

Abstract

The utility model discloses a computer lockstitch sewing machine convenient to replace a mould, which relates to the technical field of sewing equipment and comprises a machine base, a lockstitch sewing machine body and a sewing accessory groove, a limiting ring seat is mounted on the inner side of the sewing accessory groove, and threaded mounting holes are symmetrically formed in the top of the limiting ring seat. The mounting matching part is detachably mounted on the inner side of the threaded mounting hole, the dismounting thread is formed in the outer side of the mounting matching part, and the fastening internal thread is formed in the inner side of the mounting matching part. The butt joint replacement assembly is arranged on the inner side of the threaded installation hole, and installation matching pieces with the corresponding inner diameters are selected according to different specifications of lockstitch sewing machine needle plate fixing holes so as to achieve convenient and stable replacement of the needle plate. The accurate matching of the mounting matching piece and the needle plate fixing hole ensures that the needle plate of the lockstitch sewing machine has high stability after being mounted, vibration and shaking in the sewing process are reduced, the sewing quality is improved, and the good adaptability is beneficial to obtaining a better sewing effect.

Description

Technical Field

[0001] The utility model relates to the technical field of sewing equipment, in particular to a computerized lockstitch sewing machine with convenient mold replacement. Background Art

[0002] The computerized lockstitch sewing machine is a typical mechatronic product that integrates optics, electricity, and magnetism. It is operated by a computer system. Based on ordinary high-speed lockstitch sewing machines, the computerized lockstitch sewing machine adds functions such as a computer control system, realizing the integration, expansion, and optimization of multiple functions such as automatic thread trimming, automatic reverse stitching, automatic thread blocking, automatic presser foot lifting, needle positioning and parking, fixed-length sewing, and automatic counting. It is widely used in sewing processing in the clothing, home textile, leather, toy and other industries.

[0003] Patent document CN210916561U discloses a computerized flat-bed sewing machine for manufacturing labor protection clothing. The disclosed patent document solves the problem of a simple structure of the computerized flat-bed sewing machine leading to its single function. However, due to the different specifications of the needle plate mounting holes of the computerized flat-bed sewing machine, the needle plate cannot be easily replaced according to sewing requirements, and its scope of use is limited, resulting in poor sewing results. Utility Model Content

[0004] One purpose of the present application is to provide a computerized lockstitch sewing machine that is convenient for replacing molds and can solve the technical problems in the prior art.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a computerized lockstitch sewing machine with convenient mold replacement, comprising a machine base, a lockstitch machine body, and a sewing accessory slot, wherein the lockstitch machine body is mounted on the top of the machine base, the sewing accessory slot is provided on the top of the machine base, a limiting ring seat is mounted on the inner side of the sewing accessory slot, and threaded mounting holes are symmetrically provided on the top of the limiting ring seat;

[0006] A docking replacement component is provided on the inner side of the threaded mounting hole, and the docking replacement component includes an installation matching part, a disassembly thread and a fastening internal thread. The installation matching part can be detachably installed on the inner side of the threaded mounting hole, the disassembly thread is opened on the outer side of the installation matching part, and the disassembly thread is matched with the thread of the threaded mounting hole, and the fastening internal thread is opened on the inner side of the installation matching part.

[0007] Preferably, a machine head is installed at the outer end of the flat-sewing machine body.

[0008] Preferably, a protective cover is installed on the inner side of the sewing accessory slot.

[0009] Preferably, a ring groove is provided on the top of the limiting ring seat, and a magnetic attraction plate is installed on the inner side of the ring groove.

[0010] Preferably, a disassembly notch is provided at the top end of the mounting matching piece.

[0011] Preferably, a flat-bed sewing machine needle plate is installed on the top of the limiting ring seat, and a fixing hole is symmetrically opened through the top of the flat-bed sewing machine needle plate. A fixing screw is installed through the inner side of the fixing hole, and the fixing screw cooperates with the fastening internal thread.

[0012] Preferably, a sewing needle hole is provided through the top of the needle plate of the lockstitch sewing machine, and an organic needle hole is provided through the top of the needle plate of the lockstitch sewing machine.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] 1. The utility model provides a docking replacement component on the inner side of the threaded mounting hole, so that the needle plate of the lockstitch sewing machine can be replaced according to the sewing needs. According to the different specifications of the fixing hole of the lockstitch sewing machine needle plate, the mounting matching piece with the corresponding inner diameter is selected to realize convenient and stable replacement of the needle plate. The precise matching of the mounting matching piece and the needle plate fixing hole ensures that the lockstitch sewing machine needle plate has a high degree of stability after installation, which helps to reduce vibration and shaking during sewing and improve sewing quality. Loose needle plate may cause increased friction between the needle and the fabric, thereby accelerating the wear of the needle or causing problems such as thread breakage. Selecting a needle plate hole that matches the thickness of the needle ensures that the needle can smoothly pass through the hole to complete the sewing work. Good adaptability helps to achieve better sewing effects and higher work efficiency.

[0015] 2. The utility model installs a magnetic plate on the inner side of the ring groove. When the needle plate of the lockstitch sewing machine is replaced, the magnetic plate quickly performs a preliminary limit on the bottom of the needle plate of the lockstitch sewing machine, so that the needle plate is not easy to slide or dislocate during the installation process, thereby improving the installation efficiency. The preliminary limit of the magnetic plate and the fastening installation of the needle plate fixing hole together constitute a double guarantee, ensuring that the needle plate is highly stable after installation, helping to reduce vibration and shaking during sewing and improve sewing quality. The use of the magnetic plate makes the needle plate more flexible during installation. The position and angle of the needle plate can be adjusted according to different sewing requirements, and the accuracy of the final installation can be ensured by preliminary limit by the magnetic plate, which helps to obtain better sewing effects and higher work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the three-dimensional structure of the machine base of the present utility model;

[0018] Figure 3 This is an enlarged structural diagram of point A of the present utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the mounting matching piece of the present utility model;

[0020] Figure 5 It is the three-dimensional structure schematic diagram of the flat sewing machine needle plate of the utility model.

[0021] In the figure: 1, the machine base; 2, flat sewing machine body; 3, machine head; 4, sewing accessory groove; 5, limit ring seat; 6, protective cover; 7, flat sewing machine needle plate; 8, threaded mounting hole; 9, ring groove; 10, magnetic plate; 11, installation matching part; 12, disassembly thread; 13, fastening internal thread; 14, disassembly gap; 15, fixed hole; 16, sewing needle hole; 17, needle hole; 18, fixing screw. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0023] In the description of the utility model, it needs to be explained that the directions or position relations indicated by the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like are the directions or position relations shown based on the drawings, and are only for the convenience of describing the utility model and simplifying the description, and cannot be understood as indicating or implying that the indicated devices or elements must have a particular direction, be constructed and operated in a particular direction, and therefore cannot be understood as limiting the utility model. In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0024] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be broadly understood, for example, "connection" can be fixed connection or movable connection, can be detachable connection, or integrally connected; can be mechanical connection, or electrical connection; can be directly connected, or indirectly connected through an intermediate medium; can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0025] Please refer to Figure 2 、 Figure 3 、 Figure 4 And Figure 5 , the utility model provides an embodiment: a computer flat sewing machine convenient for replacing mould;

[0026] The machine base 1, the sewing accessory groove 4 and the docking replacement assembly, the top of the machine base 1 is provided with the sewing accessory groove 4, the inner side of the sewing accessory groove 4 is provided with the limiting ring seat 5, the top of the limiting ring seat 5 is symmetrically provided with the threaded mounting hole 8, the inner side of the threaded mounting hole 8 is provided with the docking replacement assembly, the docking replacement assembly comprises the installation matching part 11, the disassembly thread 12 and the fastening internal thread 13, the installation matching part 11 is detachably installed on the inner side of the threaded mounting hole 8, the disassembly thread 12 is provided on the outer side of the installation matching part 11, and the disassembly thread 12 is screwed with the threaded mounting hole 8, the fastening internal thread 13 is provided on the inner side of the installation matching part 11, the top of the limiting ring seat 5 is provided with the lockstitch needle plate 7, and the top of the lockstitch needle plate 7 is symmetrically provided with the fixed hole 15;

[0027] The sewing accessory groove 4 provides an installation position for the sewing accessory, such as the feed dog and the lockstitch needle plate 7, the feed dog is located at the bottom of the lockstitch needle plate 7 and is used to push the sewing material forward during the sewing process, the feed dog enables the sewing material to move forward smoothly and uniformly, thereby ensuring that the stitches sewn are neat and beautiful, when the lockstitch needle plate 7 is replaced, the installation matching part 11 with a corresponding inner diameter is selected according to the different specifications of the lockstitch needle plate 7 fixed hole 15 to realize the convenient and stable replacement of the needle plate, the accurate matching of the installation matching part 11 and the needle plate fixed hole 15 ensures that the lockstitch needle plate 7 has high stability after installation, the loosening of the needle plate may increase the friction between the needle and the cloth, thereby accelerating the wear of the needle or causing problems such as thread breakage, the selection of the needle plate hole matched with the thickness of the needle ensures that the needle can smoothly pass through the hole to complete the sewing work;

[0028] The use of standardized installation matching part 11 makes the replacement of needle plates of different models more simple, and the replacement of needle plates does not require complex adjustment or modification, thereby saving time, the selection of installation matching part 11 matched with the specifications of the needle plate fixed hole 15 can reduce the damage of the needle plate caused by improper installation, which helps to prolong the service life of the needle plate and reduce maintenance costs, stable installation can reduce the failure caused by the loosening of the needle plate, and helps to improve the sewing accuracy.

[0029] Please refer to Figure 1 , Figure 2 and Figure 3 , a computerized lockstitch sewing machine with a convenient mold replacement function;

[0030] The machine base 1, the sewing accessory groove 4 and the docking replacement assembly, the top of the machine base 1 is provided with the sewing accessory groove 4, the inner side of the sewing accessory groove 4 is provided with the limiting ring seat 5, the top of the limiting ring seat 5 is symmetrically provided with the threaded mounting hole 8, the inner side of the threaded mounting hole 8 is provided with the docking replacement assembly, the docking replacement assembly comprises the installation matching part 11, the disassembly thread 12 and the fastening internal thread 13, the installation matching part 11 is detachably installed on the inner side of the threaded mounting hole 8, the disassembly thread 12 is provided on the outer side of the installation matching part 11, and the disassembly thread 12 is screwed with the threaded mounting hole 8, the fastening internal thread 13 is provided on the inner side of the installation matching part 11, the top of the limiting ring seat 5 is provided with the lockstitch needle plate 7, and the top of the lockstitch needle plate 7 is symmetrically provided with the fixed hole 15;

[0031] The lockstitch machine body 2 drives the machine head 3, on which a lockstitch needle is installed. The protective cover 6 protects the accessories in the sewing accessory slot 4. The fixing screw 18 passes through the inner side of the fixing hole 15 and is threadedly connected to the fastening internal thread 13. The annular groove 9 provides an installation position for the magnetic plate 10. When the lockstitch machine needle plate 7 is replaced, the magnetic plate 10 quickly performs a preliminary limit on the bottom of the lockstitch machine needle plate 7, so that the needle plate is not easy to slide or misplace during the installation process. The preliminary limit of the magnetic plate 10 and the fastening installation of the needle plate fixing hole 15 together constitute a double guarantee to ensure that the needle plate has high security after installation. The use of the magnetic plate 10 makes the needle plate more flexible during installation, and the position and angle of the needle plate can be adjusted according to different sewing needs. The initial limit of the magnetic plate 10 can reduce the friction and wear of the needle plate during installation, extend the service life of the needle plate, and also help protect other parts of the sewing machine, such as bearings, guide rails, etc., to avoid damage caused by improper installation. Using the magnetic plate 10 for initial limit can avoid damage to the needle plate or machine failure caused by installation errors, and it is easier to check whether the position and angle of the needle plate are correct, thereby ensuring the accuracy of installation.

[0032] See also Figure 4 and Figure 5 , a computerized lockstitch sewing machine that is easy to change the mold;

[0033] The mounting matching piece 11 and the flat sewing machine needle plate 7 are provided with a disassembly notch 14 at the top of the mounting matching piece 11, a sewing material needle hole 16 is provided through the top of the flat sewing machine needle plate 7, and an organic needle hole 17 is provided through the top of the flat sewing machine needle plate 7;

[0034] The disassembly notch 14 is used to unscrew the mounting matching part 11 from the inside of the threaded mounting hole 8 when disassembling and replacing it. The sewing material needle hole 16 and the machine needle hole 17 on the needle plate 7 of the flat-bed sewing machine are used to accommodate the up and down movement of the sewing needle. The needle plate not only supports the sewing material, but also ensures that the sewing needle can accurately pass through the sewing material needle hole 16 and form a stitch. When sewing fine patterns or sewing multiple layers of fabrics, the stable needle plate can ensure that each needle falls accurately at the predetermined position.

[0035] Working principle: When using this device, first select the corresponding flat sewing machine needle plate 7 according to different flat sewing requirements, and then select the installation matching part 11 with the corresponding inner diameter according to the different specifications of the fixing hole 15 of the flat sewing machine needle plate 7. Screw the installation matching part 11 into the inner side of the threaded mounting hole 8 through the disassembly thread 12. After the flat sewing machine needle plate 7 is placed on the limiting ring seat 5, the magnetic plate 10 quickly performs a preliminary limit on the bottom of the flat sewing machine needle plate 7, so that the needle plate is not easy to slide or dislocate during the installation process. The fixing screw 18 passes through the inner side of the fixing hole 15 and is threadedly connected to the fastening internal thread 13 in the installation matching part 11 to achieve a stable limit on the replaced flat sewing machine needle plate 7.

[0036] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A computerized lockstitch sewing machine with convenient mold replacement, comprising a machine base (1), a lockstitch machine body (2) and a sewing accessory slot (4), characterized in that: A flat sewing machine body (2) is installed on the top of the machine base (1), a sewing accessory slot (4) is provided on the top of the machine base (1), a limiting ring seat (5) is installed on the inner side of the sewing accessory slot (4), and threaded mounting holes (8) are symmetrically provided on the top of the limiting ring seat (5); A docking replacement component is provided on the inner side of the threaded mounting hole (8), and the docking replacement component includes a mounting matching piece (11), a disassembly thread (12) and a fastening internal thread (13). The mounting matching piece (11) is detachably mounted on the inner side of the threaded mounting hole (8), the disassembly thread (12) is provided on the outer side of the mounting matching piece (11), and the disassembly thread (12) is threadably matched with the threaded mounting hole (8), and the fastening internal thread (13) is provided on the inner side of the mounting matching piece (11).

2. The computerized lockstitch sewing machine with convenient mold replacement according to claim 1, characterized in that: A machine head (3) is installed at the outer end of the flat-sewing machine body (2).

3. The computerized lockstitch sewing machine with convenient mold replacement according to claim 1, characterized in that: A protective cover (6) is installed on the inner side of the sewing accessory slot (4).

4. The computerized lockstitch sewing machine with convenient mold replacement according to claim 1, characterized in that: A ring groove (9) is provided on the top of the limiting ring seat (5), and a magnetic attraction plate (10) is installed on the inner side of the ring groove (9).

5. The computerized lockstitch sewing machine with convenient mold replacement according to claim 1, characterized in that: A disassembly notch (14) is provided at the top end of the mounting matching piece (11).

6. The computerized lockstitch sewing machine with convenient mold replacement according to claim 1, characterized in that: A lockstitch machine needle plate (7) is installed on the top of the limiting ring seat (5), and a fixing hole (15) is symmetrically opened on the top of the lockstitch machine needle plate (7). A fixing screw (18) is installed on the inner side of the fixing hole (15), and the fixing screw (18) is threadedly matched with the fastening internal thread (13).

7. The computerized lockstitch sewing machine with convenient mold replacement according to claim 6, characterized in that: The top of the lockstitch sewing machine needle plate (7) is provided with a sewing material needle hole (16), and the top of the lockstitch sewing machine needle plate (7) is provided with an organic needle hole (17).

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