Independent cutter device based on flatcar

Abstract

The utility model relates to an independent cutter device based on a flatcar. The cutter device comprises a mechanism fixing plate used for assembling the whole cutter device on a flatcar; the driving motor is fixed on a driving motor fixing seat, and the driving motor fixing seat is fixed on the mechanism fixing plate; the transmission mechanism is used for transmitting the driving force provided by the driving motor to a transmission eccentric shaft; one end of the transmission eccentric shaft is supported by the driving motor fixing seat, and the other end is connected with the connecting rod mechanism; the connecting rod mechanism is connected with the cutter fixing mechanism and is used for driving the cutter fixing mechanism to move; the cutter is fixed to the end of the cutter fixing mechanism and right faces the position where the cloth passes through. And the at least one limiting mechanism is used for restraining the moving direction of the cutter fixing mechanism. The cutter can be independent of the sewing action of the sewing machine, when cloth passes through, the cutter cuts the incoming cloth through up-down movement, and the forming effect of cut pieces cannot be affected.

Description

Technical Field

[0001] The present application relates to the technical field of garment processing equipment, and in particular to an independent cutting device based on a flat car. Background Art

[0002] With the development of garment manufacturing technology, robotic automation has emerged. This technology can automate processes such as collar and cuff cutting, improving production efficiency. This technology is characterized by the integration of the cutter and sewing needle, aiming to achieve continuous cutting and sewing.

[0003] In related technologies, this type of integrated cutter flat lathe is commonly used to process the seams during the sewing process. However, in actual applications, due to the simultaneous operation of the cutter and sewing machine needle, the cutter and the fabric often interfere when processing corners or curved parts of the cut piece, thus affecting the forming effect of the cut piece.

[0004] However, the aforementioned integrated cutter-and-lathe method has significant limitations. It cannot effectively prevent interference between the cutter and the fabric when processing complex-shaped pieces, which in turn affects the final product quality. Therefore, despite the efficiency improvements brought about by automation, this problem still plagues garment manufacturers, forcing them to rely on manual cutting of the seams in actual production, which increases the number of steps and reduces overall production efficiency.

[0005] Therefore, in order to solve the above technical problems, it is urgent to study a cutting device that can be independent of the sewing action of the sewing machine to solve the problems existing in automatic machine production. Utility Model Content

[0006] Based on this, it is necessary to provide an independent cutting device based on a flat car to address the above problems, so that the cutter can be independent of the sewing action of the sewing machine. When cloth passes through, the cutter can cut off the incoming cloth by moving up and down without affecting the forming effect of the cut piece.

[0007] An independent cutting device based on a flat car, comprising:

[0008] Mechanism fixing plate, used to assemble the entire cutter device on the flat car;

[0009] A drive motor is fixed on a drive motor fixing seat, and the drive motor fixing seat is fixed on the mechanism fixing plate;

[0010] A transmission mechanism, used to transmit the driving force provided by the driving motor to the transmission eccentric shaft;

[0011] The transmission eccentric shaft has one end supported by the drive motor fixing base and the other end connected to the connecting rod mechanism;

[0012] A connecting rod mechanism is connected to the cutter fixing mechanism and is used to drive the cutter fixing mechanism to move;

[0013] A cutter is fixed at the end of the cutter fixing mechanism and is aligned with the position where the cloth passes;

[0014] At least one limiting mechanism is used to constrain the movement direction of the cutter fixing mechanism.

[0015] In one embodiment, the limiting mechanism includes a first radial limiting mechanism and a second radial limiting mechanism; one end of the first radial limiting mechanism is connected to the cutter fixing mechanism, used to limit the cutter fixing mechanism to perform linear motion in the vertical direction; the cutter fixing mechanism and the second radial limiting mechanism are slidably fitted together to provide stability and guidance for the cutter fixing mechanism on the motion path.

[0016] In one embodiment, the second radial limiting mechanism is fixed on the bottom plate of the mechanism fixing plate, and the cutter fixing mechanism slides freely in the vertical direction in the second radial limiting mechanism; the first radial limiting mechanism and the second radial limiting mechanism work together to make the cutter fixing mechanism face the position where the cloth passes and move up and down in the vertical direction.

[0017] In one embodiment, the mechanism fixing plate includes a sewing machine fixing plate, a transition plate and a bottom plate.

[0018] In one embodiment, the sewing machine fixing plate, the transition plate and the bottom plate are integrated into a structure and form an integral plate-like structure, and a mounting surface for fixing the driving motor fixing seat is provided on the plate-like structure.

[0019] In one embodiment, the sewing machine fixing plate, the transition plate and the bottom plate are split structures, the sewing machine fixing plate is fixed to the side or top surface of the sewing machine, one side of the bottom plate is connected to the sewing machine fixing plate through the transition plate, and the other side of the bottom plate is attached to the plane of the sewing machine.

[0020] In one embodiment, the transmission mechanism includes two synchronous wheels, one of which is fixed to the output end of the drive motor, and the other is fixedly connected to the transmission eccentric shaft. The two synchronous wheels in the transmission mechanism cooperate with each other for synchronous transmission, so that the driving force output by the drive motor is transmitted to the transmission eccentric shaft.

[0021] In one embodiment, power transmission between the two synchronous wheels is achieved through a transmission medium, and the structure of the transmission medium is a belt transmission structure, a chain transmission structure or a gear transmission structure.

[0022] In one embodiment, the transmission eccentric shaft and the connecting rod mechanism are connected via a bearing.

[0023] The independent cutting device based on the flat car in this application works by using the cutting device to cut the cloth, including the following steps:

[0024] The driving motor rotates, driving the transmission mechanism connected thereto to rotate;

[0025] The transmission mechanism transmits the driving force to the transmission eccentric shaft, causing the transmission eccentric shaft to rotate;

[0026] Since the transmission eccentric shaft is an eccentric structure, when it rotates, the eccentric side will drive the connecting rod mechanism to perform an elliptical rotation motion;

[0027] The connecting rod mechanism drives the cutter fixing mechanism to perform elliptical rotational motion;

[0028] The cutter fixing mechanism is connected to the first radial limiting mechanism, and at the same time the cutter fixing mechanism slides in the second radial limiting mechanism, thereby limiting the cutter fixing mechanism to move up and down only along the vertical direction along with the first radial limiting mechanism;

[0029] The cutter is fixed on the cutter fixing mechanism. When cloth passes through, the cutter cuts the cloth by moving up and down.

[0030] Furthermore, the mechanism fixing plate fixes the entire set of cutter devices to the side or top of the flat car, and the position of the mechanism fixing plate is adjusted according to different types of flat cars during fixing.

[0031] In the present application, the above-mentioned independent cutting knife device based on the flat car can realize the lifting and lowering of the knife to cut the cloth at any time or position during the sewing process of the cut piece through the independent cutting knife structure and the control of the sewing machine, which is more flexible; at the same time, it solves the problem that the flat car with its own cutter can only move together with the sewing machine needle during the stop cutting process and cannot avoid interference with the arc or corner position of the cut piece when the cutter is lowered, causing the cut piece to arch and affect the forming effect of the cut piece. The present application enables the cutter to be independent of the sewing action of the sewing machine needle, and will not affect the forming effect of the cut piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the following briefly introduces the drawings required for use in the embodiments or related technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the overall structure of a cutter device in one embodiment of the present application;

[0034] Figure 2 for Figure 1 A top view of

[0035] Figure 3 This is a schematic structural diagram of a mechanism fixing plate in one embodiment of the present application;

[0036] Figure 4 for Figure 3 A schematic diagram of the structure of the fixed plate of the mechanism from another perspective;

[0037] Figure 5 This is a schematic diagram of the external state of the transmission cooperation in one embodiment of the present application;

[0038] Figure 6 This is an internal cross-sectional view of a transmission fit in one embodiment of the present application;

[0039] Figure 7 Schematic diagram of the assembly state of a cutting device and a sewing machine in one embodiment of the present application;

[0040] Figure 8 Schematic diagram of the assembly state of a cutting device and a sewing machine in another embodiment of the present application.

[0041] Description of reference numerals:

[0042] 1. Mechanism fixing plate; 2. Drive motor; 3. Drive motor fixing seat; 4. Transmission mechanism; 5. Transmission eccentric shaft; 6. Connecting rod mechanism; 7. First radial limit mechanism; 8. Cutter fixing mechanism; 9. Second radial limit mechanism; 10. Cutter; 11. Sewing machine;

[0043] 101. Sewing machine fixing plate; 102. Transition plate; 103. Bottom plate. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of this application more clear, the following further describes this application in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0045] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0046] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0048] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0049] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0051] Example 1:

[0052] See Figure 1 , Figure 1 The figure shows the overall structure of the cutter device in one embodiment of the present application.

[0053] At the same time, combined Figure 2 As shown, Figure 2 Shown in Figure 1 Schematic diagram of the structure in a top-down view.

[0054] An independent cutter device based on a flat car provided in one embodiment of the present application includes the following components: a mechanism fixing plate 1, a drive motor 2, a drive motor fixing base 3, a transmission mechanism 4, a transmission eccentric shaft 5, a connecting rod mechanism 6, a first radial limiting mechanism 7, a cutter fixing mechanism 8, a second radial limiting mechanism 9, and a cutter 10. The entire device is assembled on a sewing machine 11 via the mechanism fixing plate 1.

[0055] The structure of the mechanism fixing plate 1 is as follows: The mechanism fixing plate 1 is used to assemble the entire cutter device on the sewing machine 11. Specifically, it includes a sewing machine fixing plate 101, a transition plate 102 and a bottom plate 103 (see Figure 3 and Figure 4 The sewing machine fixing plate 101 is fixed to the side of the sewing machine 11. The transition plate 102 is connected between the sewing machine fixing plate 101 and the bottom plate 103. One surface of the bottom plate 103 is in contact with a flat surface of the sewing machine 11, thereby ensuring that the cutter device is securely mounted on the sewing machine. Specifically, the mechanism fixing plate 1 in this embodiment is a split structure, formed by the cooperative action of the sewing machine fixing plate 101, the transition plate 102, and the bottom plate 103.

[0056] The installation structure of the drive motor 2 is as follows: the drive motor 2 is fixed on the drive motor fixing base 3, and the drive motor fixing base 3 is fixed on the bottom plate 103. In this way, the position of the drive motor 2 is relatively stable, and a stable driving force can be provided for the subsequent transmission mechanism.

[0057] The transmission structure is as follows: the transmission mechanism 4 is used to transmit the driving force provided by the driving motor 2 to the transmission eccentric shaft 5. Figure 5-6The figure shows the transmission mechanism 4 in this embodiment. The transmission mechanism 4 utilizes a synchronous gear transmission. Specifically, the transmission mechanism 4 comprises two synchronous gears, one of which is fixed to the output end of the drive motor 2, and the other is fixedly connected to the transmission eccentric shaft 5. Power is transmitted between the two synchronous gears via a timing belt. When the drive motor 2 rotates, the driving force is transmitted to the transmission eccentric shaft 5 through the cooperation of the synchronous gears and the timing belt, causing it to rotate.

[0058] The connection structure between the transmission eccentric shaft 5 and the connecting rod mechanism 6 is as follows: one end of the transmission eccentric shaft 5 is supported by the drive motor mounting base 3, and the other end is connected to the connecting rod mechanism 6 via a bearing. In this way, the rotational motion of the transmission eccentric shaft 5 can be converted into the rotational motion of the connecting rod mechanism 6.

[0059] The installation structure of the cutter fixing mechanism 8 and the cutter 10 is as follows: a connecting rod mechanism 6 is connected to the cutter fixing mechanism 8, driving the cutter fixing mechanism 8. The cutter 10 is fixed to the end of the cutter fixing mechanism 8, and the cutter 10 is directly opposite the position where the fabric passes. When the fabric passes, the cutter 10 will cut.

[0060] The limiting structure is as follows: in order to ensure that the cutter 10 can move along a specific direction (vertical direction in this example), two limiting mechanisms are provided: a first radial limiting mechanism 7 and a second radial limiting mechanism 9;

[0061] Specifically, the first radial limiting mechanism 7: one end of the mechanism is connected to the cutter fixing mechanism 8, and is used to limit the linear motion of the cutter fixing mechanism 8 in the vertical direction. In this embodiment, the first radial limiting mechanism 7 adopts a slider and rail structure to achieve the motion limiting effect;

[0062] Specifically, the second radial limiting mechanism 9 is fixed to the bottom plate 103, and the cutter fixing mechanism 8 slides freely in the vertical direction in the second radial limiting mechanism 9. In this way, the second radial limiting mechanism 9 not only provides stability for the cutter fixing mechanism 8 on the movement path, but also plays a guiding role.

[0063] The first radial limiting mechanism 7 and the second radial limiting mechanism 9 of the present application cooperate to ensure that the cutter fixing mechanism 8 is facing the position where the cloth passes and moves up and down in the vertical direction.

[0064] The operating method of this embodiment is as follows: When the drive motor 2 rotates, the driving force is transmitted to the eccentric transmission shaft 5 through the transmission mechanism 4, causing it to rotate. Because the eccentric transmission shaft 5 is eccentric, its eccentric side drives the connecting rod mechanism 6 to perform an elliptical rotational motion. The movement of the connecting rod mechanism 6 in turn drives the cutter fixing mechanism 8 to perform the same elliptical rotational motion. However, because the cutter fixing mechanism 8 is connected to the first radial limiter 7 and slides within the second radial limiter 9, these limiters restrict the cutter fixing mechanism 8 to vertical, linear, up and down motion. Therefore, when the fabric passes under the cutter 10, the cutter 10 cuts the fabric by moving up and down.

[0065] Example 2:

[0066] See Figure 8 , which is a schematic diagram of the assembly state of the cutter device and the sewing machine 11 in another embodiment of the present application.

[0067] The difference between this embodiment and the above-mentioned embodiment 1 lies in the different installation structure of the mechanism fixing plate 1 .

[0068] Specifically, in this embodiment, the mechanism fixing plate 1 fixes the entire set of cutter devices to the top of the sewing machine 11 (see Figure 8 This installation method allows the position of the mechanism fixing plate 1 to be adjusted according to the different types of sewing machines 11, allowing the cutter device to be flexibly adapted to various models of sewing machines. In addition, installing the cutter device on the top of the sewing machine may be more convenient for cutting operations, especially when processing high-positioned pieces.

[0069] Except for the installation position and method of the mechanism fixing plate, the implementation method of other parts of the structure in this embodiment is exactly the same as that in the above-mentioned embodiment 1.

[0070] Example 3:

[0071] The difference between this embodiment and the above-mentioned embodiment 1 lies in that the transmission mechanism 4 is implemented in a different manner.

[0072] In the first embodiment, the transmission mechanism 4 adopts a transmission mode of synchronous wheels and synchronous belts. However, the transmission mechanism 4 in this embodiment is not limited to synchronous wheel transmission. In this embodiment, the transmission mechanism 4 can adopt other forms of transmission, such as gear transmission or direct motor drive.

[0073] Gear transmission: The transmission mechanism 4 may include two meshing gears, one of which is fixed to the output end of the drive motor 2 and the other is fixedly connected to the transmission eccentric shaft 5. When the drive motor 2 rotates, the driving force is transmitted to the transmission eccentric shaft 5 through the meshing of the gears.

[0074] Direct motor drive: In some cases, a drive motor 2 may also be configured, and the output shaft of the drive motor 2 may be directly connected to the transmission eccentric shaft 5 through a coupling, thereby omitting the intermediate transmission mechanism.

[0075] Regardless of which transmission mode is adopted, the purpose of the transmission mechanism 4 is to transmit the driving force provided by the driving motor 2 to the transmission eccentric shaft 5 to drive the subsequent cutting action.

[0076] In this embodiment, except for the different implementation of the transmission mechanism 4, the implementation of other structures in this embodiment is exactly the same as that in the first embodiment, and their working principles and structural features are also consistent.

[0077] Example 4:

[0078] The difference between this embodiment and the above-mentioned embodiment 1 lies in the different structure of the limiting mechanism.

[0079] Regarding the structure of the first radial limiting mechanism 7: In the first embodiment, the first radial limiting mechanism 7 adopts a slider rail structure. However, the first radial limiting mechanism 7 in this embodiment is not limited to a slider rail structure. In this embodiment, the first radial limiting mechanism 7 can adopt a guide shaft or dovetail groove structure to achieve the same motion limiting effect.

[0080] Guide shaft: The first radial limiting mechanism 7 may include a guide shaft and a guide sleeve; the guide shaft is fixed on the cutter fixing mechanism 8, and the guide sleeve is fixed on the mechanism fixing plate 1; when the cutter fixing mechanism 8 moves, the guide shaft slides in the guide sleeve, thereby limiting its movement direction.

[0081] Dovetail groove: The first radial limiting mechanism 7 can also adopt a dovetail groove structure; the dovetail groove is fixed on the mechanism fixing plate 1, and a slider matching the dovetail groove is fixed on the cutter fixing mechanism 8; when the cutter fixing mechanism 8 moves, the slider slides in the dovetail groove, thereby limiting its movement direction.

[0082] In this embodiment, the structure of the first radial limiting mechanism 7 includes but is not limited to the combination of a guide shaft and a guide sleeve and the combination of a slider and a dovetail groove. However, no matter which form, the core function of the first radial limiting mechanism 7 is to limit the cutter fixing mechanism 8 to perform linear motion along a specific direction (vertical direction in this case).

[0083] Embodiment 5:

[0084] The difference between this embodiment and the above-mentioned embodiment 1 lies in the different structure of the mechanism fixing plate 1 .

[0085] In the first embodiment, the mechanism fixing plate 1 includes a sewing machine fixing plate 101, a transition plate 102 and a bottom plate 103, which are separate structures. However, the mechanism fixing plate 1 of the present invention can also be an integrated structure.

[0086] In actual work, the mechanism fixing plate 1 can adopt the form of a split structure or an integrated structure to adapt to different installation requirements and manufacturing convenience.

[0087] For example, the mechanism fixing plate 1 in this embodiment is an integrated structure, designed as an integral plate-like structure, on which a mounting surface for fixing the drive motor fixing seat 3 and other components is directly provided.

[0088] In this embodiment, except for the different implementation of the mechanism fixing plate 1, the implementation of other parts in this embodiment is exactly the same as that in the first embodiment. Therefore, their working principles and structural features are also consistent.

[0089] The present application uses an independent cutting knife device in conjunction with the sewing machine control, which can realize the lifting and lowering of the knife to cut the cloth at any time or position during the sewing process of the cut piece, which is more flexible; at the same time, it solves the problem that the flat sewing machine with its own cutter can only move together with the sewing machine needle during the stop cutting process and cannot avoid interference with the cutter when cutting at the arc or corner position of the cut piece, causing the cut piece to arch and affecting the forming effect of the cut piece; in the present application, when the cloth passes through, the cutter 10 cuts off the incoming cloth by moving up and down, which will not affect the forming effect of the cut piece.

[0090] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0091] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. An independent cutting device based on a flat car, characterized in that: include: Mechanism fixing plate, used to assemble the entire cutter device on the flat car; A drive motor is fixed on a drive motor fixing seat, and the drive motor fixing seat is fixed on the mechanism fixing plate; A transmission mechanism, used to transmit the driving force provided by the driving motor to the transmission eccentric shaft; The transmission eccentric shaft has one end supported by the drive motor fixing base and the other end connected to the connecting rod mechanism; A connecting rod mechanism is connected to the cutter fixing mechanism and is used to drive the cutter fixing mechanism to move; A cutter is fixed at the end of the cutter fixing mechanism and is aligned with the position where the cloth passes; At least one limiting mechanism is used to constrain the movement direction of the cutter fixing mechanism.

2. The independent cutter device based on a flat car according to claim 1, characterized in that: The limiting mechanism includes a first radial limiting mechanism and a second radial limiting mechanism; One end of the first radial limiting mechanism is connected to the cutter fixing mechanism, and is used to limit the cutter fixing mechanism from performing linear motion in the vertical direction; The cutter fixing mechanism and the second radial limiting mechanism are slidably matched to provide stability and guidance for the cutter fixing mechanism on the movement path.

3. The independent cutter device based on a flat car according to claim 2, characterized in that: The second radial limiting mechanism is fixed on the bottom plate of the mechanism fixing plate, and the cutter fixing mechanism is free to slide in the second radial limiting mechanism along the vertical direction.

4. The independent cutter device based on a flat car according to claim 3, characterized in that: The first radial limiting mechanism and the second radial limiting mechanism both limit the sliding of the cutter fixing mechanism in the vertical direction, and cooperate to make the cutter fixing mechanism face the position where the cloth passes and move up and down in the vertical direction.

5. The independent cutter device based on a flat car according to claim 1, characterized in that: The mechanism fixing plate comprises a sewing machine fixing plate, a transition plate and a bottom plate.

6. The independent cutter device based on a flat car according to claim 5, characterized in that: The sewing machine fixing plate, the transition plate and the bottom plate are an integrated structure and constitute an integral plate-like structure. A mounting surface for fixing the driving motor fixing seat is provided on the plate-like structure.

7. The independent cutter device based on a flat car according to claim 5, characterized in that: The sewing machine fixing plate, transition plate and bottom plate are split structures. The sewing machine fixing plate is fixed to the side or top surface of the sewing machine. One side of the bottom plate is connected to the sewing machine fixing plate through the transition plate, and the other side of the bottom plate is attached to the plane of the sewing machine.

8. The independent cutter device based on a flat car according to claim 1, characterized in that: The transmission mechanism includes two synchronous wheels, one of which is fixed to the output end of the drive motor, and the other is fixedly connected to the transmission eccentric shaft. The two synchronous wheels in the transmission mechanism cooperate with each other for synchronous transmission, so that the driving force output by the drive motor is transmitted to the transmission eccentric shaft.

9. The independent cutter device based on a flat car according to claim 8, characterized in that: The power transmission between the two synchronous wheels is achieved through a transmission medium, and the structure of the transmission medium is a transmission belt transmission structure, a chain transmission structure or a gear transmission structure.

10. The independent cutter device based on a flat car according to claim 1, characterized in that: The transmission eccentric shaft and the connecting rod mechanism are connected via a bearing.

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