One-driving-two synchronous trolley of sewing machine

Abstract

The utility model discloses a sewing machine one-driving-two synchronous trolley, which belongs to the technical field of sewing machines and comprises a casing, a driving connecting rod and a stepping motor, the stepping motor is fixedly arranged on one side of the casing and used for driving the driving connecting rod to work, and a first connecting shaft is fixedly arranged at the output end of the stepping motor. A second connecting shaft is transversely and fixedly connected to the connecting end of the driving connecting rod, one end of the second connecting shaft is inserted into the edge of the machine shell to rotate, a guide block is transversely and fixedly arranged on the outer wall of the first connecting shaft, and a notch groove matched with the guide block is transversely formed in the inner wall of the second connecting shaft; the first connecting shaft is aligned with the notch groove through the guide block and is inserted into the second connecting shaft, and the first connecting shaft and the second connecting shaft are fixed through a bolt; when the stepping motor is disassembled, the driving connecting rod does not need to be separated from a shaft connected with the support, the stepping motor can be disassembled, and the stepping motor can be conveniently disassembled and assembled on the machine shell.

Description

TECHNICAL FIELD

[0001] The utility model relates to sewing machine technical field, concretely is a sewing machine one drags two synchronous car. BACKGROUND

[0002] The sewing machine one drags two synchronous car equipment is widely used in various clothing manufacturing enterprises, especially in occasions requiring mass production. Whether making shirts, trousers or coats, the sewing machine one drags two synchronous car can play its efficient and stable characteristics. In addition, it is also suitable for sewing production in the home textile, hat and shoe industries.

[0003] At present, the internal structure of the sewing machine one drags two synchronous car is more complex, and the inside needs to be maintained and cleaned. As the core equipment of the clothing industry, the normal operation of the sewing machine directly affects the production efficiency and product quality. Therefore, regular maintenance and care are the key to ensuring the efficient operation of the sewing machine.

[0004] When the existing sewing machine one drags two synchronous car is overhauled, the edge cover of the machine shell is fixed by bolts, and a bolt removal tool is needed during disassembly, which is troublesome and time-consuming.

[0005] The shaft of the stepping motor of the existing sewing machine one drags two synchronous car needs to be bolted and connected with multiple mechanisms. When the stepping motor is disassembled and installed, the bolts of these connected mechanisms need to be loosened one by one, so it is inconvenient to disassemble and assemble the stepping motor. Therefore, it is necessary to provide a sewing machine one drags two synchronous car with convenient disassembly and assembly of the stepping motor. SUMMARY

[0006] The utility model aims at providing a sewing machine one drags two synchronous car to at least solve the above technical problems to some extent, and facilitate the disassembly and separation of the stepping motor connecting shaft and the driving link.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a machine shell, a driving link and a stepping motor are provided, the stepping motor is fixedly arranged on one side of the machine shell to drive the driving link to work, a first connecting shaft is fixedly arranged at the output end of the stepping motor, a second connecting shaft is transversely fixedly connected to the connecting end of the driving link, one end of the second connecting shaft is rotatably inserted into the edge of the machine shell, a guide block is transversely fixedly arranged on the outer wall of the first connecting shaft, a notch groove matched with the guide block is transversely arranged on the inner wall of the second connecting shaft, the first connecting shaft is inserted into the second connecting shaft through the guide block and the notch groove, and the first connecting shaft and the second connecting shaft are fixed by bolts.

[0008] A mounting groove is formed at one end of the machine shell, a sealing strip is arranged on the outer wall of the machine shell at the mounting groove position, the connecting end of the stepping motor is inserted into the mounting groove and tightly adheres to the sealing strip, and the stepping motor is fixed on the machine shell by screws.

[0009] Preferably, the one end of the shell is located at the beginning of the mounting groove and has a sealing groove matched with the sealing strip, and the sealing strip is inserted into the sealing groove.

[0010] Preferably, two positioning rods are fixedly arranged at the upper and lower ends of the sealing groove, and circular holes aligned with the two positioning rods are formed in the outer wall of the sealing strip.

[0011] Preferably, an axle hole is formed in the one end of the shell, the axle hole is located at the middle part of the sealing groove, a bearing is arranged in the axle hole, and the second connecting shaft is supported to rotate at the edge of the shell through the bearing.

[0012] Preferably, when the bottom end of the stepping motor contacts the bottom end of the mounting groove, the plurality of mounting holes of the stepping motor are mutually symmetrical with the mounting holes of the shell.

[0013] Preferably, a threaded hole is formed in the outer wall of the second connecting shaft, and a fixing hole 312 is formed in the outer wall of the first connecting shaft, and when the first connecting shaft is inserted into the inner end of the second connecting shaft, the threaded hole is opposite to the fixing hole 312.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. When the utility model is used, the stepping motor is disassembled, the side cover of the shell is opened, the bolts on the outer wall of the second connecting shaft are disassembled, the stepping motor is disassembled from the outer wall of the shell and pulled outward, so that the first connecting shaft is separated from the second connecting shaft, and the second connecting shaft is still supported in the shell and connected with the driving link.

[0016] 2. When the utility model is used, the sealing strip arranged at the connecting end of the shell and the stepping motor is a rubber sealing strip, which changes the previous sealing glue mode and can be reused to save resources, and the sealing effect of the connecting part of the stepping motor and the shell. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating labor.

[0018] Figure 1 It is a whole three-dimensional structure schematic view of the embodiment.

[0019] Figure 2 It is the main view cross section structure schematic diagram of the shell of the embodiment;

[0020] Figure 3 It is the three-dimensional structure schematic diagram of the shell connecting end of the embodiment;

[0021] Figure 4 It is the step motor and drive connecting rod connecting structure schematic diagram of the embodiment;

[0022] Figure 5 It is the first connecting shaft and second connecting shaft separation structure schematic diagram of the embodiment;

[0023] Figure 6 It is the A enlarged structure schematic diagram in the embodiment Figure 2 .

[0024] In the drawings, the component list represented by each sign is as follows:

[0025] 1, shell; 11, mounting groove; 12, shaft hole; 13, sealing groove; 14, positioning rod; 2, drive connecting rod; 3, step motor; 31, first connecting shaft; 311, guide block; 312, fixing hole; 4, second connecting shaft; 5, bolt; 6, sealing strip; 7, bearing. DETAILED DESCRIPTION

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0027] Please refer to Figures 1-6 The utility model provides a kind of technical scheme: a sewing machine one drags two synchronous car, including shell 1, drive connecting rod 2, step motor 3, step motor 3 is fixedly arranged in shell 1 one side for driving drive connecting rod 2 work, the output end of step motor 3 is fixedly arranged with first connecting shaft 31, drive connecting rod 2 connecting end solid transverse fixed connection has second connecting shaft 4, second connecting shaft 4 one end is inserted in the edge of shell 1 rotation, the outer wall of first connecting shaft 31 transverse fixed setting has guide block 311, the inner wall of second connecting shaft 4 transverse starts to have the notch groove matched with guide block 311, first connecting shaft 31 is inserted in second connecting shaft 4 inside by guide block 311 alignment notch groove, first connecting shaft 31 and second connecting shaft 4 are fixed by bolt 5;

[0028] The shell 1 one end is provided with mounting groove 11, the shell 1 outer wall is provided with sealing strip 6 in mounting groove 11 part, the connecting end of step motor 3 is inserted in mounting groove 11 and tightly adheres with sealing strip 6, step motor 3 is fixed on shell 1 by screw.

[0029] When step motor 3 is disassembled, the side cover of shell 1 is opened, the bolt 5 on the outer wall of second connecting shaft 4 is rotated counterclockwise by using matched tool, when bolt 5 is separated from the inside of first connecting shaft 31, step motor 3 can be disassembled from the outer wall of shell 1, step motor 3 is pulled outwards, so that first connecting shaft 31 is separated from the inside of second connecting shaft 4, second connecting shaft 4 still supports the connection between driving link 2 and shell 1, when step motor 3 is disassembled, it does not need to be separated from the shaft with driving link 2, which is convenient for disassembly and assembly.

[0030] When step motor 3 is installed, the guide block 311 on the outer wall of first connecting shaft 31 is inserted into the notch groove on the inner wall of second connecting shaft 4, the first connecting shaft 31 is positioned, so that the first connecting shaft 31 fixed hole 312 is opposite to the threaded hole of second connecting shaft 4, which is convenient for bolt 5 fixation, the sealing strip 6 is provided on the connecting end of shell 1 and step motor 3, which is rubber sealing strip 6, which changes the previous sealing glue method, can be reused and saves resources, and the sealing effect of the connecting part of step motor 3 and shell 1.

[0031] Referring to Figure 3 and Figure 6 In some embodiments, the one end of shell 1 located in mounting groove 11 part is provided with sealing groove 13 matched with sealing strip 6, half part of sealing strip 6 is inserted into sealing groove 13, and sealing strip 6 is rectangular in shape.

[0032] The sealing groove 13 is provided on one end of shell 1 for installing sealing strip 6, the rectangular shape of sealing strip 6 is suitable for sealing the connecting end of step motor 3.

[0033] Referring to Figure 2 and Figure 3 In some embodiments, two positioning rods 14 are fixedly arranged in the upper and lower ends of sealing groove 13, and round holes are arranged in the upper and lower ends of the outer wall of sealing strip 6, which are aligned with the two positioning rods 14, and one end of the two positioning rods 14 is inserted into the sealing strip 6 through the round holes.

[0034] The positioning rods 14 arranged in the sealing groove 13 are used for guiding and installing the sealing strip 6, the round holes matched with the positioning rods 14 are arranged in the sealing strip 6, and the positioning rods 14 are inserted into the sealing strip 6, so that half of the sealing strip 6 can be constrained and fixed.

[0035] Referring to Figure 3 and Figure 6In some embodiments, the shell 1 is provided with an axle hole 12 at one end, the axle hole 12 is located at the middle part of the sealing groove 13, the axle hole 12 is internally provided with a bearing 7, and the second connecting shaft 4 is supported to rotate at the edge of the shell 1 through the bearing 7.

[0036] The bearing 7 provided in the axle hole 12 at one end of the shell 1 is used for supporting the second connecting shaft 4 located in the shell 1, and when the first connecting shaft 31 is separated from the second connecting shaft 4, the second connecting shaft 4 can still support the driving connecting rod 2 in the shell 1.

[0037] Referring to Figure 2 and Figure 5 In some embodiments, when the bottom end of the stepping motor 3 is in contact with the bottom end of the mounting groove 11, the plurality of mounting holes of the stepping motor 3 are symmetrically arranged with the mounting holes of the shell 1.

[0038] When the stepping motor 3 is mounted, the bottom of the stepping motor 3 is placed at the bottom end of the mounting groove 11, and the stepping motor 3 is supported, which can facilitate the mounting and fixing of the stepping motor 3 by the worker to a certain extent.

[0039] Referring to Figure 4 In some embodiments, the second connecting shaft 4 is provided with a threaded hole in the outer wall, the first connecting shaft 31 is provided with a fixing hole 312 in the outer wall, and when the first connecting shaft 31 is inserted into the inner end of the second connecting shaft 4, the threaded hole is opposite to the fixing hole 312.

[0040] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inner", "front", "central", "both ends" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation on the present application.

[0041] In the present application, unless otherwise specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like should be understood in a broad sense, for example, they can be fixed connection, or detachable connection, or integrated; they can be mechanical connection, or electrical connection; they can be directly connected, or indirectly connected through an intermediate medium; they can be the communication between two elements or the interaction relationship between two elements, unless otherwise specified, and for ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

[0042] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A sewing machine one-pull two-synchronization car, comprising a machine shell (1), a driving connecting rod (2), a stepping motor (3), the stepping motor (3) is fixedly arranged on one side of the machine shell (1) and used to drive the driving connecting rod (2) to work, characterized in that: The output end of the stepping motor (3) is fixedly provided with a first connecting shaft (31), the connecting end of the driving connecting rod (2) is transversely fixedly connected with a second connecting shaft (4), one end of the second connecting shaft (4) is rotatably inserted in the edge of the shell (1), the outer wall of the first connecting shaft (31) is transversely fixedly provided with a guide block (311), the inner wall of the second connecting shaft (4) is transversely provided with a notch groove matched with the guide block (311), the first connecting shaft (31) is inserted in the second connecting shaft (4) through the guide block (311) aligning the notch groove, and the first connecting shaft (31) and the second connecting shaft (4) are fixed through bolts (5). One end of the shell (1) is provided with a mounting groove (11), the outer wall of the shell (1) is provided with a sealing strip (6) at the mounting groove (11), the connecting end of the stepping motor (3) is inserted in the mounting groove (11) and tightly abuts against the sealing strip (6), and the stepping motor (3) is fixed on the shell (1) through screws.

2. A one-two sewing machine synchronization vehicle according to claim 1, characterized in that: One end of the shell (1) is provided with a sealing groove (13) matched with the sealing strip (6) at the mounting groove (11), one half of the sealing strip (6) is inserted in the sealing groove (13), and the sealing strip (6) is in the shape of a rectangle.

3. A one-two sewing machine synchronization vehicle according to claim 2, characterized in that: Two positioning rods (14) are fixedly arranged in the sealing groove (13), and the outer wall of the sealing strip (6) is provided with two circular holes respectively aligned with the two positioning rods (14) at the upper end and the lower end.

4. The one-two sewing machine synchronization vehicle according to claim 1, characterized in that: One end of the shell (1) is provided with an axle hole (12), the axle hole (12) is located at the middle part of the sealing groove (13), the inside of the axle hole (12) is provided with a bearing (7), and the second connecting shaft (4) is rotatably supported on the edge of the shell (1) through the bearing (7).

5. A one-two sewing machine synchronization vehicle according to claim 4, characterized in that: When the bottom end of the stepping motor (3) contacts the bottom end of the mounting groove (11), the mounting holes of the stepping motor (3) are symmetrically arranged with the mounting holes of the shell (1).

6. A one-two sewing machine synchronization vehicle according to claim 1, characterized in that: The outer wall of the second connecting shaft (4) is provided with a threaded hole, the outer wall of the first connecting shaft (31) is provided with a fixed hole (312), and when the first connecting shaft (31) is inserted in the second connecting shaft (4), the threaded hole is opposite to the fixed hole (312).

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