Double-shaft linkage cloth moving device for sewing machine

Abstract

The utility model discloses a double-shaft linkage cloth moving device for a sewing machine, and relates to the technical field of sewing machines, the sewing machine comprises a machine head and a machine needle, the machine head is provided with a cloth moving device, the cloth moving device comprises a cross bar, a connecting shaft, a driving motor, a double-shaft connecting plate and a transmission belt, the two parallel connecting shafts are arranged on the transverse strip, and the two connecting shafts are connected together through the double-shaft connecting plate. During use, the driving motor drives the double-shaft connecting plate to move, so that the two connecting shafts are synchronously stressed, the transverse strip is stably driven to move, and then cloth is driven to move. Compared with the prior art, the sewing machine is more stable, accumulative errors are more difficult to generate, and the sewing quality can be better guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of sewing machines, and in particular relates to a double-axis linkage cloth moving device for sewing machines. Background Art

[0002] Automatic sewing machine is controlled by computer and equipped with automatic monitoring system, feeding system, automatic sewing start, sewing according to set trajectory, needle stopping, thread cutting and other functions, which can automatically complete certain sewing processes.

[0003] Automatic sewing machines are all equipped with a fabric moving device, which is achieved by installing a cloth clamping plate on the horizontal bar, and driving the horizontal bar to move through a driving motor to drive the fabric to move.

[0004] Most of the existing fabric moving devices drive the fabric to move through a single-axis transmission. The single-axis transmission is not stable enough and is prone to lateral deviation when driving the fabric to move. Especially after repeated movement, the transmission shaft of the fabric moving device will rotate at the connection position, resulting in cumulative errors, which can easily affect the final sewing quality. Utility Model Content

[0005] In order to solve the above problems existing in the prior art, the utility model aims to provide a double-axis linkage cloth moving device for a sewing machine.

[0006] The technical solution adopted by the utility model is:

[0007] A double-axis linkage cloth moving device for a sewing machine, the sewing machine comprises a machine head and a sewing needle, the machine head is provided with a cloth moving device, the cloth moving device comprises a horizontal bar, a connecting shaft, a driving motor, a double-axis connecting plate and a transmission belt, the driving motor is mounted on the machine head, and the driving motor is connected to the transmission belt for transmission; two parallel connecting shafts are mounted on the horizontal bar, and the two connecting shafts are used to drive the horizontal bar to approach or move away from the sewing needle; the two ends of the double-axis connecting plate are respectively mounted on the two connecting shafts, and the double-axis connecting plate is mounted on the transmission belt.

[0008] Optionally, a transmission clamping plate is installed on the double-axis connecting plate, and the transmission clamping plate presses the transmission belt against the double-axis connecting plate and prevents the double-axis connecting plate and the transmission belt from generating relative movement.

[0009] Optionally, a first synchronous wheel and a second synchronous wheel are arranged inside the machine head along the axial direction of the connecting shaft;

[0010] The power output shaft of the driving motor is transmission-connected with the first synchronous wheel, and the transmission belt is sleeved on the first synchronous wheel and the second synchronous wheel.

[0011] Optionally, the transmission belt is a synchronous belt, and a plurality of meshing teeth are provided on one side of the transmission splint close to the dual-axis connecting plate, and the meshing teeth mesh with the synchronous belt.

[0012] Optionally, several first connecting holes are opened at both ends of the double-axis connecting plate, several second connecting holes are opened in the middle of the double-axis connecting plate, several third connecting holes are opened on the transmission clamping plate, and a fourth connecting hole is opened on the connecting shaft; the first connecting hole and the third connecting hole are through holes, and the second connecting hole and the fourth connecting hole are threaded holes; the first connecting hole is connected to the fourth connecting hole through a bolt assembly, and the third connecting hole is connected to the second connecting hole through a bolt assembly.

[0013] Optionally, an adapter plate is installed at one end of the connecting shaft away from the dual-shaft connecting plate, and the connecting shaft is connected to the cross bar through the adapter plate.

[0014] As an option, a reset sensor is mounted on the dual-axis connection plate.

[0015] The beneficial effects of the utility model are:

[0016] The utility model provides a double-axis linkage fabric moving device for a sewing machine. The sewing machine includes a machine head and a sewing needle. The machine head is provided with a fabric moving device, which includes a horizontal bar, a connecting shaft, a driving motor, a double-axis connecting plate and a transmission belt. The driving motor is installed on the machine head, and the driving motor is connected to the transmission belt; two parallel connecting shafts are installed on the horizontal bar, and the two connecting shafts are used to drive the horizontal bar to approach or move away from the sewing needle; the two ends of the double-axis connecting plate are respectively installed on the two connecting shafts, and the double-axis connecting plate is installed on the transmission belt. By arranging two parallel connecting shafts on the horizontal bar, and connecting the two connecting shafts together through the double-axis connecting plate. When in use, the driving motor drives the double-axis connecting plate to move, so that the two connecting shafts can be synchronously stressed, thereby stably driving the displacement of the horizontal bar, and then realizing the movement of the fabric. Compared with the prior art, the utility model is more stable, less likely to produce cumulative errors, and can better ensure the quality of sewing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the installation position of the utility model.

[0018] Figure 2 It is a structural schematic diagram of the utility model.

[0019] Figure 3 It is a structural schematic diagram of the utility model from another viewing angle, and the horizontal bars are omitted.

[0020] Figure 4 yes Figure 3 A magnified schematic diagram of area A in the middle.

[0021] Figure 5 It is a structural schematic diagram of a double-axis connecting plate and a transmission splint.

[0022] In the figure: 1-machine head, 2-needle, 3-horizontal bar, 4-connecting shaft, 41-adapter plate, 5-drive motor, 51-power output shaft, 52-first synchronous wheel, 53-second synchronous wheel, 54-transmission belt, 6-double-axis connecting plate, 61-first connecting hole, 62-second connecting hole, 7-transmission splint, 71-meshing teeth, 72-third connecting hole, 8-reset sensor. DETAILED DESCRIPTION

[0023] In this embodiment, if Figures 1 to 4 A double-axis linkage cloth moving device for a sewing machine is shown, the sewing machine comprises a machine head 1 and a needle 2, the machine head 1 is provided with a cloth moving device, the cloth moving device comprises a horizontal bar 3, a connecting shaft 4, a driving motor 5, a double-axis connecting plate 6 and a transmission belt 54, the driving motor 5 is mounted on the machine head 1, and the driving motor 5 is connected to the transmission belt 54; two parallel connecting shafts 4 are mounted on the horizontal bar 3, and the two connecting shafts 4 are used to drive the horizontal bar 3 to approach or move away from the needle 2; the two ends of the double-axis connecting plate 6 are respectively mounted on the two connecting shafts 4, and the double-axis connecting plate 6 is mounted on the transmission belt 54. By arranging two parallel connecting shafts 4 on the horizontal bar 3, and connecting the two connecting shafts 4 together through the double-axis connecting plate 6. When in use, the double-axis connecting plate 6 is driven by the driving motor 5 to move, so that the two connecting shafts 4 can be synchronously stressed, thereby stably driving the horizontal bar 3 to move, and then realizing the movement of the cloth. Compared with the prior art, the utility model is more stable, less likely to produce cumulative errors, and can better ensure the quality of sewing.

[0024] In this embodiment, if Figure 2 and Figure 3 As shown, a transmission clamp plate 7 is installed on the double-axis connecting plate 6, and the transmission clamp plate 7 presses the transmission belt 54 on the double-axis connecting plate 6, and prevents the double-axis connecting plate 6 and the transmission belt 54 from relative movement. A first synchronous wheel 52 and a second synchronous wheel 53 are arranged inside the machine head 1 along the axial direction of the connecting shaft 4; the power output shaft 51 of the driving motor 5 is transmission-connected with the first synchronous wheel 52, and the transmission belt 54 is sleeved on the first synchronous wheel 52 and the second synchronous wheel 53.

[0025] In this embodiment, if Figure 5 As shown, the transmission belt 54 is a synchronous belt, and a plurality of meshing teeth 71 are provided on one side of the transmission clamping plate 7 close to the dual-axis connecting plate 6, and the meshing teeth 71 mesh with the synchronous belt.

[0026] In this embodiment, if Figures 2 to 5As shown, a plurality of first connecting holes 61 are opened at both ends of the double-axis connecting plate 6, a plurality of second connecting holes 62 are opened in the middle of the double-axis connecting plate 6, a plurality of third connecting holes 72 are opened on the transmission clamping plate 7, and a fourth connecting hole is opened on the connecting shaft 4; the first connecting hole 61 and the third connecting hole 72 are through holes, and the second connecting hole 62 and the fourth connecting hole are threaded holes; the first connecting hole 61 is connected to the fourth connecting hole by a bolt assembly, and the third connecting hole 72 is connected to the second connecting hole 62 by a bolt assembly.

[0027] During installation, a bolt is used to pass through the first connection hole 61 and threadedly connect with the fourth connection hole, and the two ends of the double-axis connection plate 6 are respectively locked to the ends of the two connection shafts 4 away from the horizontal bar 3; then the outer side of the synchronous belt is placed on the double-axis connection plate 6, and the meshing teeth 71 of the transmission clamp plate 7 mesh with the inner side of the synchronous belt, and then a bolt is used to pass through the third connection hole 72 and threadedly connect with the second connection hole 62 to lock the transmission clamp plate 7 on the double-axis connection plate 6. The meshing teeth 71 prevent the double-axis connection plate 6 from relative displacement with the transmission belt 54, so that when the transmission belt 54 rotates, it can drive the double-axis connection plate 6 to move, and the length direction of the transmission belt 54 is consistent with the axial direction of the connection shaft 4. When the transmission belt 54 rotates, it can drive the connection shaft 4 to move axially, so that the horizontal bar 3 can be driven to approach or move away from the sewing needle, thereby adjusting the relative position of the fabric and the sewing needle in a straight line direction.

[0028] In this embodiment, an adapter plate 41 is installed at one end of the connecting shaft 4 away from the dual-axis connecting plate 6, and the connecting shaft 4 is connected to the horizontal bar 3 through the adapter plate 41. A threaded hole is opened in the axial direction at the end of the connecting shaft 4, and a through hole is opened in the center of the adapter plate 41. The adapter plate 41 is locked on the connecting shaft 4 by a bolt assembly. At the same time, through holes are opened at the four top corners of the adapter plate 41, and threaded holes are opened at corresponding positions on the horizontal bar 3. The adapter plate 41 is locked on the horizontal bar 3 by a bolt assembly, and the connection between the connecting shaft 4 and the horizontal bar 3 can be completed.

[0029] In this embodiment, a reset sensor 8 is installed on the dual-axis connecting plate 6, and the reset sensor 8 is electrically connected to the drive motor 5. The reset sensor 8 is used to record the initial position and displacement of the dual-axis connecting plate 6, thereby assisting the drive motor 5 to achieve start-stop reset, emergency stop reset, etc.

[0030] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0032] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A double-axis linkage cloth moving device for a sewing machine, the sewing machine comprising a machine head (1) and a sewing needle (2), the machine head (1) being provided with the cloth moving device, characterized in that: The cloth moving device comprises a horizontal bar (3), a connecting shaft (4), a driving motor (5), a double-shaft connecting plate (6) and a transmission belt (54); the driving motor (5) is mounted on the machine head (1), and the driving motor (5) is in transmission connection with the transmission belt (54); Two parallel connecting shafts (4) are installed on the horizontal bar (3), and the two connecting shafts (4) are used to drive the horizontal bar (3) to approach or move away from the needle (2); The two ends of the double-axis connecting plate (6) are respectively mounted on two connecting shafts (4), and the double-axis connecting plate (6) is mounted on a transmission belt (54).

2. A double-axis linkage cloth moving device for a sewing machine according to claim 1, characterized in that: A transmission clamping plate (7) is installed on the double-axis connecting plate (6), and the transmission clamping plate (7) presses the transmission belt (54) onto the double-axis connecting plate (6) and prevents the double-axis connecting plate (6) and the transmission belt (54) from generating relative movement.

3. A double-axis linkage cloth moving device for a sewing machine according to claim 2, characterized in that: A first synchronous wheel (52) and a second synchronous wheel (53) are arranged inside the machine head (1) along the axial direction of the connecting shaft (4); The power output shaft (51) of the driving motor (5) is drivingly connected to the first synchronous wheel (52), and the driving belt (54) is sleeved on the first synchronous wheel (52) and the second synchronous wheel (53).

4. A double-axis linkage cloth moving device for a sewing machine according to claim 3, characterized in that: The transmission belt (54) is a synchronous belt, and a plurality of meshing teeth (71) are arranged on one side of the transmission clamping plate (7) close to the double-axis connecting plate (6), and the meshing teeth (71) mesh with the synchronous belt.

5. A double-axis linkage cloth moving device for a sewing machine according to claim 4, characterized in that: A plurality of first connection holes (61) are provided at both ends of the double-axis connection plate (6), a plurality of second connection holes (62) are provided in the middle of the double-axis connection plate (6), a plurality of third connection holes (72) are provided on the transmission clamping plate (7), and a fourth connection hole is provided on the connection shaft (4); The first connecting hole (61) and the third connecting hole (72) are through holes, and the second connecting hole (62) and the fourth connecting hole are threaded holes; The first connection hole (61) is connected to the fourth connection hole via a bolt assembly, and the third connection hole (72) is connected to the second connection hole (62) via a bolt assembly.

6. A double-axis linkage cloth moving device for a sewing machine according to claim 1, characterized in that: An adapter plate (41) is installed at one end of the connecting shaft (4) away from the double-shaft connecting plate (6), and the connecting shaft (4) is connected to the horizontal bar (3) via the adapter plate (41).

7. A double-axis linkage cloth moving device for a sewing machine according to claim 1, characterized in that: A reset sensor (8) is installed on the dual-axis connecting plate (6).

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