Improved upper pulling machine

Abstract

The invention discloses an improved upper pulling machine, a guide wheel device comprises a movable support rotatably mounted at the side part of a main machine, a guide wheel driving motor and a guide wheel unit, the movable support comprises a rotary radial arm, a rotary transverse arm and a rotary inclined arm, a first end of the rotary radial arm is rotatably mounted at the side part of the main machine, and a second end of the rotary transverse arm is rotatably mounted at the side part of the main machine; a clutch driving device is connected to the clutch driving device; the first end of the rotating cross arm is connected with the second end of the rotating radial arm, and the rotating cross arm is perpendicular to the rotating radial arm; the upper end of the rotating inclined arm is connected with the second end of the rotating cross arm, the rotating inclined arm is arranged downwards in an inclined mode towards the feeding wheel device, the guiding wheel unit is rotationally installed at the lower end of the rotating inclined arm, and the guiding wheel driving motor is fixed to the rotating cross arm or the rotating inclined arm and is in driving connection with the guiding wheel unit. Compared with the prior art, the movable support supports and is provided with the independently-driven guide wheel device, operation is easy, and shoe uppers are prevented from being scratched.

Description

technical field [0001] The present invention relates to the technical field of pulling machines, in particular to an improved pulling machine. Background technique [0002] After the existing pulling machine is used for sewing, the user must cut the suture manually, resulting in low production efficiency. Therefore, a pulling machine with an automatic thread cutting mechanism has also been developed in the prior art. It is mainly composed of a main body, a feeding device, a driving device and a thread cutting device. The feeding device is assembled on the main body and has a feeding shaft and a feeding wheel assembled with each other. The driving device can drive the feeding wheel to rotate. The fixing base, the cutting assembly and the driving source assembled on the fixing base, and the thread hooking assembly connected to the driving source, wherein the driving source can drive the thread hooking assembly to be pulled from the thread hooking position above the feeding whe...

AI Technical Summary

Problems solved by technology

[0002] After the existing gluing machine performs the sewing operation, the user must cut the suture manually, resulting in low production efficiency. Therefore, a gluing machine with an automatic thread cutting mechanism has also been developed in the prior art. It is mainly composed of a body, a feeding device, a driving device and a thread cutting device. The feeding device is assembled on the body, and has a feeding shaft and a feeding wheel assembled with each other. The driving device can drive the feeding wheel to rotate. The thread cutting device has a The fixing base, the cutting assembly and the driving source assembled on the fixing base, and the thread hooking assembly connected to the driving source, wherein the driving source can drive the thread hooking assembly to be pulled from the thread hooking position above the feeding wheel until the suture contacts the cutting assembly cut off position

However, the above-mentioned lasting machine has the following defects: 1. It needs to set up an additional hooking assembly, and needs to accurately control the stroke of the hooking assembly to ensure that the suture can be accurately hooked, resulting in a complex overall structure and high precision requirements. If the suture cannot be accurately hooked, the subsequent thread trimming action cannot be completed, resulting in low production efficiency; 2. The suture is cut by relying on the elastic pressure of the contact end of the elastic sheet on the thread hook assembly, thereby The suture is pushed to the blade of the cutting assembly by the elastic thrust for cutting, but the elastic force of the elastic sheet will become worse after a long time of use, and it cannot meet the elastic requirements of pushing the suture to the blade to achieve cutting, so the seam is roughly The thread cannot be cut, which affects the efficiency of production; 3. The suture is first hooked by the thread hook assembly and pulled to the cutting assembly for cutting, so that the suture thread ends after being cut on the sewing material are longer, and it is still necessary to Manual trimming, low production efficiency; 4. The operation is complicated when the guide wheel of the lasting machine is separated, it is difficult to separate from the upper, and it is easy to cause scratches on the upper

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