Independent cutter differential mechanism for flat seaming machine

Abstract

The utility model discloses an independent cutter differential mechanism for a flat seaming machine, which belongs to the technical field of flat seaming machines and comprises an independent cutter component, a differential amount adjusting component and a synchronizing component, the independent cutter component comprises a first motor, a transmission part and a cutter, the differential amount adjusting component comprises a second motor and an adjusting part, and the first motor is connected with the second motor. The synchronous assembly is connected with the first motor and the second motor, one end of the transmission part is indirectly connected with the first motor, the other end of the transmission part is connected with the cutter, the adjusting part is arranged on the transmission part, and the second motor is in driving connection with the adjusting part. The second motor and the adjusting piece which drive the differential amount adjusting assembly are driven by the synchronizing assembly to control the first motor and the second motor to rotate synchronously, the working speed and the position of the cutter are changed, and the tension and the conveying speed of cloth in the flat seaming process can be indirectly affected.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of binding sewing machine, especially relate to a independent cutter differential mechanism for binding sewing machine. BACKGROUND

[0002] Binding sewing machine is a kind of high-efficiency, accurate sewing equipment, mainly used for the sewing of two or more layers of sewing material, and is especially suitable for sewing close-fitting knitted garments, such as sweatshirts, underpants, sportswear, etc. Its working principle is based on the cooperation of shuttle and needle, and the sewing of cover chain stitch is completed through the coordinated operation of head, table plate and rack.

[0003] In the existing binding sewing machine, the cutter mechanism and the differential amount adjusting device are usually separately arranged, each responsible for different functions. The cutter mechanism is mainly used to control the thread cutter or cutter of the binding sewing machine to cut off the excess thread on the cloth. The differential amount adjusting device is mainly used to control the differential device of the binding sewing machine to realize the speed difference between the left and right binding mechanisms.

[0004] Therefore, the cutter mechanism of the existing binding sewing machine cannot indirectly adjust the differential amount by controlling its own movement. SUMMARY

[0005] In order to solve the problem that the cutter mechanism of the existing binding sewing machine cannot indirectly affect the adjustment of the differential amount by controlling its own movement, the utility model provides an independent cutter differential mechanism for binding sewing machine which can indirectly adjust the differential amount by controlling its own movement.

[0006] The technical scheme of the utility model is characterized in that:

[0007] The independent cutter differential mechanism for binding sewing machine comprises an independent cutter assembly, a differential amount adjusting assembly and a synchronization assembly. The independent cutter assembly comprises a first motor, a transmission member and a cutter. The differential amount adjusting assembly comprises a second motor and an adjusting member. The synchronization assembly is connected with the first motor and the second motor. One end of the transmission member is indirectly connected with the first motor. The other end of the transmission member is connected with the cutter. The adjusting member is arranged on the transmission member. The second motor is drivingly connected with the adjusting member.

[0008] Further, the transmission member comprises a transmission rod, an eccentric wheel and a swing arm. One end of the transmission rod is indirectly connected with the first motor. The other end of the transmission rod is connected with the eccentric wheel. One end of the swing arm is connected with the eccentric wheel. The other end of the swing arm is connected with the cutter.

[0009] Further, the adjusting member comprises a helical tooth and a worm wheel. The helical tooth is arranged on the transmission rod. The worm wheel is meshingly connected with the helical tooth.

[0010] Further, the transmission member further comprises a limiting arm, an extension rod, a connecting seat and a spring, one end of the limiting arm is connected with the swing arm, the other end of the limiting arm is fixedly connected with one end of the extension rod, the extension rod is arranged in the connecting seat, the spring is sleeved on the extension rod, and the spring is located in the connecting seat, and the other end of the extension rod is connected with the cutter.

[0011] Further, the limiting arm is provided with a displacement hole, and the swing arm is movably arranged in the displacement hole.

[0012] Further, the first motor and the second motor are each provided with an output shaft, the output shaft of the first motor is further connected with a shaft coupling and a main shaft, one end of the shaft coupling is connected with the output shaft of the first motor, the other end of the shaft coupling is connected with the main shaft, and the main shaft is indirectly connected with the transmission rod.

[0013] Further, the synchronous assembly comprises a first synchronous wheel, a second synchronous wheel and a synchronous belt, the first synchronous wheel is fixedly arranged on the main shaft, the second synchronous wheel is fixedly arranged on the output shaft of the second motor, and the synchronous belt is sleeved on the first synchronous wheel and the second synchronous wheel.

[0014] The utility model discloses the beneficial effect lies in:

[0015] On the basis of the independent cutter assembly, the differential amount adjusting assembly and the synchronous assembly are arranged, so that the independent cutter assembly has the function of cutting off the thread end, when the differential amount needs to be adjusted, the second motor of the differential amount adjusting assembly and the adjusting part are driven, under the driving of the synchronous assembly, the first motor and the second motor are controlled to rotate synchronously, the working speed and the position of the cutter are changed, the tension and the conveying speed of the cloth in the taping process can be indirectly influenced, and another function of indirectly adjusting the differential amount by controlling the motion of the cutter is realized. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is an overall structure diagram of the independent cutter differential mechanism for the taping machine Figure 1 ;

[0017] Figure 2 It is an overall structure diagram of the independent cutter differential mechanism for the taping machine Figure 2 ;

[0018] Figure 3 It is an overall structure diagram of the independent cutter differential mechanism for the taping machine

[0019] Label: 1, independent cutter assembly, 11, first motor, 12, transmission part, 121, transmission rod, 122, eccentric wheel, 123, swing arm, 124, limit arm, 1241, displacement hole, 125, extension rod, 126, connecting seat, 127, spring, 13, cutter, 14, coupling, 15, main shaft, 2, differential quantity adjusting assembly, 21, second motor, 22, adjusting part, 221, helical tooth, 222, worm wheel, 3, synchronization assembly, 31, first synchronization wheel, 32, second synchronization wheel, 33, synchronization belt, 4, output shaft. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects of the present application more clearly understood, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and do not limit the present application.

[0021] It should be noted that when an element is referred to as "mounted on", "provided on", "covered on", "sleeved on", "clamped on" another element, it can be directly on the other element or indirectly on the other element.

[0022] It should be understood that in the description of the present application, the meaning of "several" is two or more than two, unless otherwise explicitly specified.

[0023] In addition, the terms "inner", "upper", "between", "two sides", "one side", "top", "bottom", "side" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] It should be noted that the terms "first", "second", "third" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second", "third" and the like can explicitly or implicitly include one or more of the features.

[0025] It should be noted that "and / or" in this paper is only a description of the association between the associated objects, which means that there are three kinds of relationships, for example, A and / or B, which means that there are three kinds of situations: A alone, A and B exist together, and B alone. Wherein, A and B can be singular or plural.

[0026] Example 1

[0027] Please refer toFigures 1-3 The utility model provides a kind of independent cutter differential mechanism for binding machine, including independent cutter component 1, differential quantity adjusting component 2 and synchronous component 3, the independent cutter component 1 includes first motor 11, transmission member 12 and cutter 13, the differential quantity adjusting component 2 includes second motor 21 and adjusting member 22, the synchronous component 3 is connected with the first motor 11 and second motor 21, one end of the transmission member 12 is indirectly connected the first motor 11, the other end of the transmission member 12 is connected the cutter 13, the adjusting member 22 is located on the transmission member 12, the second motor 21 is driven connection adjusting member 22;So that independent cutter component 1 except having the function of cutting off thread end, when needing to carry out differential quantity adjustment, drive differential quantity adjusting component 2's second motor 21 and adjusting member 22, under the driving of synchronous component 3, control first motor 11 and second motor 21 synchronous rotation, change the working speed and position of cutter 13, can indirectly affect the tension and conveying speed of cloth in binding process, to realize another function of indirectly adjusting differential quantity by controlling its own movement;In addition, when not needing to carry out differential quantity adjustment, can only control first motor 11 work, drive cutter 13 to do reciprocating motion.

[0028] Specifically, the transmission member 12 includes a transmission rod 121, an eccentric wheel 122, a swing arm 123, a limiting arm 124, an extension rod 125, a connecting seat 126, and a spring 127. One end of the transmission rod 121 is indirectly connected to the first motor 11. The other end of the transmission rod 121 is connected to the eccentric wheel 122. One end of the swing arm 123 is connected to the eccentric wheel 122. The other end of the swing arm 123 is connected to one end of the limiting arm 124. The other end of the limiting arm 124 is fixedly connected to one end of the extension rod 125. The extension rod 125 is arranged in the connecting seat 126. The spring 127 is sleeved on the extension rod 125 and located in the connecting seat 126. The other end of the extension rod 125 is connected to the cutter 13. Therefore, when the first motor 11 drives to work, the transmission rod 121 is driven to rotate, the transmission rod 121 drives the eccentric wheel 122 to rotate, the eccentric wheel 122 drives the swing arm 123, the swing arm 123 drives the limiting arm 124, the limiting arm 124 drives the extension rod 125, and the extension rod 125 drives the cutter 13 to perform reciprocating motion. The spring 127 is elastically deformed during the reciprocating motion of the cutter 13. When the spring 127 restores, a pushing force is applied to the cutter 13 to reset the cutter 13. Through the eccentric wheel 122, the swing arm 123, the limiting arm 124, the extension rod 125, the connecting seat 126, and the spring 127, the cutter 13 is accurately controlled, and the cutting effect is accurate and reliable.

[0029] Further, the limiting arm 124 is provided with a displacement hole 1241, and the swing arm 123 is movably arranged in the displacement hole 1241, and the swing range of the swing arm 123 is limited through the displacement hole 1241, so that the cutter 13 reciprocates in a certain range.

[0030] Further, the adjusting member 22 comprises a helical tooth 221 and a worm wheel 222, the helical tooth 221 is arranged on the transmission rod 121, and the worm wheel 222 is in meshing connection with the helical tooth 221, when the transmission rod 121 rotates, the helical tooth 221 rotates along with the transmission rod 121, and the transmission rod 121 drives the worm wheel 222 to rotate, so that the rotation of the transmission rod 121 is converted into linear motion, and the swing arm swings back and forth.

[0031] Further, the first motor 11 and the second motor 21 are both provided with an output shaft 4, the output shaft 4 of the first motor 11 is further connected with a shaft coupling 14 and a main shaft 15, one end of the shaft coupling 14 is connected with the output shaft 4 of the first motor 11, the other end of the shaft coupling 14 is connected with the main shaft 15, and the main shaft 15 is indirectly connected with the transmission rod 121.

[0032] Further, the synchronous assembly 3 comprises a first synchronous wheel 31, a second synchronous wheel 32 and a synchronous belt 33, the first synchronous wheel 31 is fixedly arranged on the main shaft 15, the second synchronous wheel 32 is fixedly arranged on the output shaft 4 of the second motor 21, and the synchronous belt 33 is sleeved on the first synchronous wheel 31 and the second synchronous wheel 32, so that the first motor 11 and the second motor 21 rotate synchronously, and the cord sewing machine has coordination and stability when conveying cloth or performing other functions.

[0033] Embodiment 2

[0034] The difference from the embodiment 1 is that the limiting arm 124, the extension rod 125, the connecting seat 126 and the spring 127 can be omitted, one end of the transmission rod 121 is indirectly connected with the first motor 11, the other end of the transmission rod 121 is connected with the eccentric wheel 122, one end of the swing arm 123 is connected with the eccentric wheel 122, and the other end of the swing arm 123 is connected with the cutter 13, and the reciprocating motion of the cutter 13 is realized only through the swing arm.

[0035] The above embodiments only express several implementation manners of the utility model, and the description is relatively specific and detailed, but it cannot be understood as the limitation of the patent range of the utility model. It should be pointed out that, for ordinary skilled persons in the art, without departing from the concept of the utility model, a plurality of modifications and improvements can be made, and these all belong to the protection range of the utility model. Therefore, the protection range of the utility model patent should be subject to the appended claims.

Claims

1. A self-contained cutter differential mechanism for a flat seaming machine, characterized by, The application relates to a cutting machine, which comprises an independent cutter assembly (1), a differential quantity adjusting assembly (2) and a synchronization assembly (3), wherein the independent cutter assembly (1) comprises a first motor (11), a transmission member (12) and a cutter (13), the differential quantity adjusting assembly (2) comprises a second motor (21) and an adjusting member (22), the synchronization assembly (3) is connected with the first motor (11) and the second motor (21), one end of the transmission member (12) is indirectly connected with the first motor (11), the other end of the transmission member (12) is connected with the cutter (13), the adjusting member (22) is arranged on the transmission member (12), and the second motor (21) is drivingly connected with the adjusting member (22).

2. The independent cutter differential mechanism for a flat seaming machine according to claim 1, wherein The transmission member (12) comprises a transmission rod (121), an eccentric wheel (122) and a swing arm (123), one end of the transmission rod (121) is indirectly connected with the first motor (11), the other end of the transmission rod (121) is connected with the eccentric wheel (122), one end of the swing arm (123) is connected with the eccentric wheel (122), and the other end of the swing arm (123) is connected with the cutter (13).

3. The independent cutter differential mechanism for a flat seaming machine of claim 2, wherein, The transmission member (12) further comprises a limiting arm (124), an extension rod (125), a connecting seat (126) and a spring (127), one end of the limiting arm (124) is connected with the swing arm (123), the other end of the limiting arm (124) is fixedly connected with one end of the extension rod (125), the extension rod (125) is arranged in the connecting seat (126), the spring (127) is sleeved on the extension rod (125) and located in the connecting seat (126), and the other end of the extension rod (125) is connected with the cutter (13).

4. The independent cutter differential mechanism for a flat seaming machine according to claim 3, wherein A displacement hole (1241) is arranged on the limiting arm (124), and the swing arm (123) is movably arranged in the displacement hole (1241).

5. The independent cutter differential mechanism for a flat seaming machine of claim 2, wherein, The first motor (11) and the second motor (21) are both provided with output shafts (4), the output shaft (4) of the first motor (11) is further connected with a shaft coupling (14) and a main shaft (15), one end of the shaft coupling (14) is connected with the output shaft (4) of the first motor (11), the other end of the shaft coupling (14) is connected with the main shaft (15), and the main shaft (15) is indirectly connected with the transmission rod (121).

6. The independent cutter differential mechanism for a flat seaming machine of claim 5, wherein, The synchronization assembly (3) comprises a first synchronization wheel (31), a second synchronization wheel (32) and a synchronization belt (33), the first synchronization wheel (31) is fixedly arranged on the main shaft (15), the second synchronization wheel (32) is fixedly arranged on the output shaft (4) of the second motor (21), and the synchronization belt (33) is sleeved on the first synchronization wheel (31) and the second synchronization wheel (32).

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