Automatic thread cutting device of multi-needle machine

Abstract

The utility model discloses an automatic thread cutting device of a multi-needle machine, and relates to the technical field of thread cutting devices. The device comprises a supporting plate, wherein a motor driving mechanism, a sliding mechanism and a connecting mechanism are arranged on the supporting plate; the motor driving mechanism comprises a rotating shaft rotationally penetrating through the middle axis of the supporting plate, a motor is fixedly connected to the extending part of the bottom side of the rotating shaft, a rotating disc is fixedly connected to the extending part of the top side of the rotating shaft, a rotating groove is formed in the middle axis of the supporting plate, and a clamping ring is fixedly connected to the outer wall of the rotating shaft; the outer wall of the clamping ring extends into the rotating groove and is rotationally connected with the rotating groove. According to the utility model, the motor driving mechanism is arranged, so that the problem of energy waste caused by more energy consumed by cylinder driving in the multi-needle machine of the thread cutting device which needs to be frequently used is solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of thread cutting devices, in particular to an automatic thread cutting device for a multi-needle machine. Background Art

[0002] In the related technology, an automatic thread cutting device in a multi-needle machine is disclosed with publication number CN101696536A. The contact surface between the guide block and the movable tool holder of the device is designed to be an inclined surface, which can effectively improve the sliding accuracy of the movable tool holder and prevent the movable tool holder from jumping up and down after being vibrated by the multi-needle machine; the inclined contact surface can also correct the clearance generated by the movable tool holder and the guide block after long-term work by adjusting the distance between the two guide blocks, thereby restoring the sliding accuracy of the movable tool holder.

[0003] However, the device adopts a cylinder drive for driving the thread trimming device, and in a multi-needle machine that needs to use the thread trimming device frequently, the cylinder drive consumes more energy, thereby causing energy waste. Utility Model Content

[0004] The utility model aims to provide an automatic thread trimming device for a multi-needle machine, which solves the problem that the cylinder drive consumes more energy and causes energy waste in a multi-needle machine that needs to use the thread trimming device frequently by setting a motor drive mechanism.

[0005] In order to solve the above technical problems, the utility model is realized by the following technical solutions:

[0006] The utility model is an automatic thread trimming device for a multi-needle machine, comprising a support plate, on which a motor drive mechanism, a sliding mechanism and a connecting mechanism are arranged;

[0007] The motor drive mechanism comprises a rotating shaft which rotates and passes through the central axis of the support plate, a bottom extension portion of the rotating shaft is fixedly connected with a motor, and a top extension portion of the rotating shaft is fixedly connected with a turntable.

[0008] Furthermore, a rotation groove is provided at the central axis of the support plate, a clamping ring is fixedly connected to the outer wall of the rotation shaft, and the outer wall of the clamping ring extends into the rotation groove and is rotationally connected to the rotation groove.

[0009] Furthermore, the sliding mechanism comprises two support blocks fixedly connected to the top of the support plate, and trapezoidal sliding grooves are respectively provided on the sides of the two support blocks close to each other.

[0010] Furthermore, a moving block is slidably connected to the inner walls of the two trapezoidal slide grooves, and a slide groove is provided on the moving block, and the slide groove passes through the moving block.

[0011] Further, a sliding rod is slidably connected to the inner wall of the chute. The bottom side of the sliding rod is fixedly connected to the turntable, and a connecting rod is fixedly connected to the right side of the moving block.

[0012] Further, an adapter block is slidably connected to the outer wall of the connecting rod. The bottom of the adapter block is fixedly connected to the support plate. A plurality of rectangular limiting grooves are formed in the inner wall of the adapter block, and a plurality of rectangular limiting blocks are fixedly connected to the outer wall of the support plate. The rectangular limiting blocks penetrate through the adapter block and extend to the outside.

[0013] Further, the connecting mechanism includes a U-shaped frame fixedly connected to the side of the connecting rod away from the moving block. Gaskets are fixedly connected to the inner walls of the top and bottom of the U-shaped frame.

[0014] Further, a plurality of blades are slidably connected to the side where the two gaskets are close to each other. A plurality of bolts are threadedly penetrated through the U-shaped frame. The plurality of bolts penetrate through the plurality of blades, and the bolts are threadedly connected to the blades.

[0015] The utility model has the following beneficial effects:

[0016] 1. When it is necessary to use the device for tangent cutting, the motor can be started. The motor drives the rotating shaft to rotate in the rotating groove through the snap ring, thereby driving the turntable to rotate, so as to provide higher speed and acceleration, thus realizing faster tangent cutting operation, improving production efficiency. Moreover, compared with the cylinder drive, the motor drive can usually make more effective use of energy, reduce energy waste, lower production costs, and at the same time reduce the impact on the environment;

[0017] 2. When the turntable rotates, it will drive the moving block to rotate in the trapezoidal chute on the support block through the sliding rod in the chute, thereby pushing the blade on the connecting mechanism to cut the wire to be cut, so as to realize the accuracy of the tangent cutting operation, ensure that the tangent position and speed in the processing process are accurate, and can convert the rotational power of the motor into the power of linear motion, so as to drive the blade to cut the wire more stably.

[0018] Of course, when implementing any product of the utility model, it is not necessarily required to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1Schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 Schematic diagram of the rear cross-sectional structure of the present utility model;

[0022] Figure 3 Schematic diagram of a partial structure of the present utility model;

[0023] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the overall structure of A in;

[0024] Figure 5 For the present utility model Figure 2 Enlarged schematic diagram of the overall structure of B in;

[0025] Figure 6 For the present utility model Figure 3 Enlarged schematic diagram of the overall structure of C in.

[0026] In the drawings, the list of components represented by each reference numeral is as follows:

[0027] Support plate; 2. Motor drive mechanism; 21. Rotating shaft; 22. Motor; 23. Turntable; 24. Rotating groove; 25. Snap ring; 3. Sliding mechanism; 31. Support block; 32. Trapezoidal sliding groove; 33. Moving block; 34. Sliding groove; 35. Slide bar; 36. Connecting rod; 4. Adapter block; 5. Rectangular limiting groove; 6. Rectangular limiting block; 7. Connecting mechanism; 71. C-shaped frame; 72. Gasket; 73. Limiting groove; 75. Bolt. Detailed implementation manners

[0028] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts belong to the protection scope of the present utility model.

[0029] Please refer to Figure 1-6 As shown, the present utility model is a multi-needle machine automatic thread cutting device, including a support plate 1, and a motor drive mechanism 2, a sliding mechanism 3 and a connecting mechanism 7 are arranged on the support plate 1;

[0030] The motor drive mechanism 2 includes a rotating shaft 21 that rotates through the central axis of the support plate 1, a motor 22 is fixedly connected to the bottom extension of the rotating shaft 21, and a turntable 23 is fixedly connected to the top extension of the rotating shaft 21.

[0031] Among them, as Figure 4As shown, a rotation groove 24 is opened at the central axis of the support plate 1 , a clamping ring 25 is fixedly connected to the outer wall of the rotation shaft 21 , and the outer wall of the clamping ring 25 extends into the rotation groove 24 and is rotatably connected to the rotation groove 24 .

[0032] By providing the rotation groove 24 and the clamping ring 25 , a rotation limit can be provided for the rotation of the rotating shaft 21 , thereby increasing the stability of the device.

[0033] Among them Figure 1 As shown, the sliding mechanism 3 includes two support blocks 31 fixedly connected to the top of the support plate 1, and trapezoidal sliding grooves 32 are respectively provided on the sides of the two support blocks 31 close to each other.

[0034] By setting the sliding mechanism 3, the accuracy of the tangent operation can be achieved, ensuring that the tangent position and speed during the processing are accurate, and the rotational power of the motor can be converted into the power of linear motion, so that the blade can be driven to cut the line more stably.

[0035] As shown in FIG. 3 , a moving block 33 is slidably connected to the inner walls of the two trapezoidal slide grooves 32 , and a slide groove 34 is formed on the moving block 33 , and the slide groove 34 passes through the moving block 33 .

[0036] By providing the trapezoidal slide groove 32 , a sliding space can be provided for the movement of the moving block 33 , thereby making the operation of the device smoother.

[0037] Among them Figure 4 As shown, a slide rod 35 is slidably connected to the inner wall of the slide groove 34 , the bottom side of the slide rod 35 is fixedly connected to the turntable 23 , and a connecting rod 36 is fixedly connected to the right side of the moving block 33 .

[0038] By providing the slide bar 35 , when the rotating disk 23 rotates, the slide bar 35 can be driven to move, thereby driving the moving block 33 to slide through the slide groove 34 .

[0039] Among them Figure 5 As shown, an adapter block 4 is slidably connected to the outer wall of the connecting rod 36, the bottom of the adapter block 4 is fixedly connected to the support plate 1, a plurality of rectangular limit grooves 5 are opened on the inner wall of the adapter block 4, and a plurality of rectangular limit blocks 6 are fixedly connected to the outer wall of the support plate 1, and the rectangular limit blocks 6 penetrate the adapter block 4 and extend to the outside.

[0040] By providing the rectangular limiting groove 5 and the rectangular limiting block 6 , when the connecting rod 36 is pushed by the moving block 33 , the connecting rod 36 can slide on the adapting block 4 through the rectangular limiting groove 5 and the rectangular limiting block 6 .

[0041] Among them Figure 6As shown, the connecting mechanism 7 includes a U-shaped frame 71 fixedly connected to the side of the connecting rod 36 away from the moving block 33, and gaskets 72 are fixedly connected to the inner walls of the top and bottom of the U-shaped frame 71.

[0042] By providing the gasket 72, when the blade 74 cuts the line, the gasket 72 can limit the blade 74, thereby preventing the blade 74 from swinging during cutting, and thus improving the cutting quality of the device.

[0043] Among them, as Figure 6 shown, a plurality of blades 74 are slidably connected to the side of the two gaskets 72 close to each other. A plurality of bolts 75 are threaded through the U-shaped frame 71, and the plurality of bolts 75 penetrate through the plurality of blades 74, and the bolts 75 are threadedly connected to the blades 74.

[0044] By providing the bolts 75, the replacement of the blade 74 becomes simple and convenient, saving maintenance and repair time and improving production efficiency.

[0045] A specific application of this embodiment is as follows: Before use, first take out the blade 74, install it on the gasket 72, and then fix it on the U-shaped frame 71 through the bolt 75. At this time, install the device on the multi-needle machine. When the device is needed for tangent cutting, the motor 22 can be started. The motor 22 drives the rotating shaft 21 to rotate in the rotating groove 24 through the snap ring 25, thereby driving the turntable 23 to rotate, so as to provide higher speed and acceleration, and thus realize a faster tangent cutting operation, improve production efficiency. Moreover, compared with cylinder drive, motor drive can usually use energy more effectively, reduce energy waste, reduce production costs, and at the same time reduce the impact on the environment. When the turntable 23 rotates, it will drive the moving block 33 to rotate in the trapezoidal chute 32 of the support block 31 through the slide bar 35 in the chute 34, thereby pushing the blade 74 on the connecting mechanism 7 to cut the line to be cut, so that the accuracy of the tangent cutting operation can be realized, ensuring that the tangent position and speed during the processing are accurate. The rotational power of the motor 22 can be converted into the power of linear motion, so that the blade 74 can drive the line to be cut more stably.

[0046] In the description of this specification, the descriptions referring to terms such as "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0047] The preferred embodiments of the utility model disclosed above are only used to help explain the utility model. The preferred embodiments do not describe all the details in detail, nor do they limit the utility model to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the utility model, so that technicians in the relevant technical field can well understand and use the utility model. The utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An automatic thread cutting device for a multi-needle machine, comprising a support plate (1), characterized in that: A motor driving mechanism (2), a sliding mechanism (3) and a connecting mechanism (7) are arranged on the support plate (1); The motor driving mechanism (2) includes a rotating shaft (21) rotatably penetrating through the central axis of the support plate (1). A motor (22) is fixedly connected to the bottom extension of the rotating shaft (21). A turntable (23) is fixedly connected to the top extension of the rotating shaft (21). The sliding mechanism (3) includes two support blocks (31) fixedly connected to the top of the support plate (1). Trapezoidal chutes (32) are respectively formed on one side of the two support blocks (31) close to each other. The connecting mechanism (7) includes a C-shaped frame (71) fixedly connected to the side of the connecting rod (36) away from the moving block (33). A gasket (72) is fixedly connected to the inner wall of the C-shaped frame (71).

2. The automatic thread cutting device for a multi-needle machine according to claim 1, characterized in that: A rotating groove (24) is formed at the central axis of the support plate (1). A snap ring (25) is fixedly connected to the outer wall of the rotating shaft (21). The outer wall of the snap ring (25) extends into the rotating groove (24) and is rotatably connected to the rotating groove (24).

3. The automatic thread cutting device for a multi-needle machine according to claim 2, characterized in that: A moving block (33) is slidably connected to the inner walls of the two trapezoidal chutes (32). A chute (34) is formed in the moving block (33). The chute (34) penetrates through the moving block (33).

4. The automatic thread cutting device for a multi-needle machine according to claim 3, characterized in that: A sliding rod (35) is slidably connected to the inner wall of the chute (34). The bottom side of the sliding rod (35) is fixedly connected to the turntable (23). A connecting rod (36) is fixedly connected to the right side of the moving block (33).

5. The automatic thread cutting device for a multi-needle machine according to claim 4, characterized in that: An adapter block (4) is slidably connected to the outer wall of the connecting rod (36). The bottom of the adapter block (4) is fixedly connected to the support plate (1). A plurality of rectangular limiting grooves (5) are formed in the inner wall of the adapter block (4). A plurality of rectangular limiting blocks (6) are fixedly connected to the outer wall of the support plate (1). The rectangular limiting blocks (6) penetrate through the adapter block (4) and extend to the outside.

6. The automatic thread cutting device for a multi-needle machine according to claim 5, characterized in that: A plurality of blades (74) are slidably connected to the side of the two gaskets (72) close to each other. A plurality of bolts (75) are threadedly penetrated through the C-shaped frame (71). The plurality of bolts (75) penetrate through the plurality of blades (74). The bolts (75) are threadedly connected to the blades (74).

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