Buffering device of cloth cutting machine

Abstract

The utility model provides a temporary storage device of a cloth cutting machine, and effectively solves the problems that an existing temporary storage device of the cloth cutting machine is limited in adjusting range and cannot adjust the trend of cloth. According to the technical scheme, the device comprises a rack, a middle roller arranged in the front-back direction is arranged in the middle of the rack and can rotate, and the left side and the right side of the middle roller are each provided with a buffering unit; each buffer unit comprises two buffer rollers arranged in the front-back direction, the two buffer rollers located in the same buffer unit are symmetrically arranged up and down, two rotating plates are arranged in each buffer unit, and the ends of the buffer rollers are installed on the rotating plates. The two rotating plates and the two buffering rollers in the same buffering unit form a rectangular frame structure, a rotating shaft is fixed to the middle of each rotating plate, and the rotating shafts and the rack are hinged together through torsional springs. The cloth tensioning device is ingenious in structure, capable of keeping the cloth in the best tensioning state, large in adjusting range, capable of adjusting the trend of the cloth and adjusting the cloth for multiple times, and capable of guaranteeing the follow-up cutting quality.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to a buffer device for a fabric cutting machine. Background Art

[0002] During the cutting process of a cloth cutting machine, there are often cloth rolls with irregular winding. These cloths are adjusted by a buffer device after being unfolded, and then can achieve the effects of tensioning and direction adjustment, improving the cutting quality of the cloth cutting machine. In the prior art, the Chinese patent document CN205772254U discloses a buffer device for a fabric cutting machine, which uses two cloth rollers of a horizontally arranged frame and a horizontal roller at the top of the bracket. When the cloth passes through one cloth roller, the horizontal roller and the other cloth roller in sequence, the inertia of the driving roller in the cloth pulling device is buffered, ensuring the smooth transmission of the cloth. During the transmission process, as the cloth is pulled, the frame will rise along the vertical rod until it reaches the top of the bracket, ensuring that the cloth is smoothly sent onto the table board of the fabric cutting machine. After each version of the cloth is sent, the motor of the cloth pulling device stops working. Due to the inertia of the driving roller, a part of the cloth will continue to be transmitted forward. At this time, the frame falls to the bottom of the vertical rod under the action of its own gravity, just caching the cloth transmitted by the inertia of the driving roller in the buffer device, ensuring the flatness of the cloth in the entire fabric cutting machine from the cloth roll to the table board. However, in the specific use process, this structure cannot fully play the role of buffering, its tensioning and adjustment effects are poor, and it cannot achieve the claimed purpose.

[0003] In view of this, there is provided a buffer device for a fabric cutting machine, which can keep the cloth in the best tension state, has a large adjustment range, can adjust the direction of the cloth, and can adjust the cloth multiple times to ensure the subsequent cutting quality. Summary of the Utility Model

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a buffer device for a fabric cutting machine, effectively solving the problems that the adjustment range of the existing buffer device of the cloth cutting machine is limited and it cannot adjust the direction of the cloth.

[0005] The technical solution it adopts is that it includes a frame, there is a middle roller arranged in the front-rear direction in the middle of the frame, the middle roller can rotate, and there is a buffer unit on each of the left and right sides of the middle roller;

[0006] The buffer unit includes two buffer rollers arranged in the front-rear direction. The two buffer rollers in the same buffer unit are symmetrically arranged up and down. There are two rotating plates in each buffer unit, and the end of the buffer roller is installed on the rotating plate; the two rotating plates and the two buffer rollers in the same buffer unit form a rectangular frame structure. A rotating shaft is fixed in the middle of the rotating plate, and the rotating shaft is hinged to the frame through a torsion spring.

[0007] Further, the middle roller includes a fixed shaft, the end of the fixed shaft is fixed on the frame, and a rotatable outer cylinder is sleeved on the fixed shaft.

[0008] Further, the buffer roller includes a round rod, and a rotatable rotating cylinder is sleeved outside the round rod.

[0009] Further, rubber layers are covered on the outer circumferential surfaces of the outer cylinder and the rotating cylinder.

[0010] The structure of the utility model is ingenious, which can keep the fabric in the best tension state, has a large adjustment range, can adjust the direction of the fabric, can adjust the fabric multiple times, and ensure the subsequent cutting quality. Description of the Drawings

[0011] Figure 1 is the front view of the utility model.

[0012] Figure 2 is the side view of the utility model.

[0013] Figure 3 is the front view cross-sectional view of the utility model.

[0014] Figure 4 is the side view cross-sectional view of the utility model.

[0015] Figure 5 is the working state diagram of the utility model. Detailed Description of the Preferred Embodiments

[0016] The following further elaborates the detailed description of the preferred embodiments of the utility model with reference to the drawings.

[0017] As shown by Figures 1 to 5 the utility model includes a frame 1, a middle roller 2 arranged in the front-rear direction is provided in the middle of the frame 1, the middle roller 2 is rotatable, and there is a buffer unit on each of the left and right sides of the middle roller 2;

[0018] The buffer unit includes two buffer rollers 3 arranged in the front-rear direction. The two buffer rollers 3 in the same buffer unit are symmetrically arranged up and down. There are two rotating plates 4 in each buffer unit, and the ends of the buffer rollers 3 are installed on the rotating plates 4; the two rotating plates 4 and the two buffer rollers 3 in the same buffer unit form a rectangular frame structure. A rotating shaft 5 is fixed in the middle of the rotating plate 4, and the rotating shaft 5 is hinged to the frame 1 through a torsion spring.

[0019] In order to reduce the resistance during the movement of the fabric, the middle roller 2 includes a fixed shaft 6, the end of the fixed shaft 6 is fixed on the frame 1, and a rotatable outer cylinder 7 is sleeved on the fixed shaft 6.

[0020] In order to further reduce the resistance during the movement of the fabric, the buffer roller 3 includes a round rod 8, and a rotatable rotating cylinder 9 is sleeved outside the round rod 8.

[0021] To protect the surface of the fabric from being scratched, rubber layers are covered on the outer circumferential surfaces of the outer cylinder 7 and the rotating cylinder 9.

[0022] It should be noted that bearings are installed between the outer cylinder 7 and the fixed shaft 6, and bearings are installed between the round rod 8 and the rotating cylinder 9.

[0023] In the initial state as Figure 1 、 3 shown, when in use, as Figure 5 shown, the fabric enters from the left side. The fabric first bypasses the buffer roller 3 on the upper side inside the left buffer unit, then bypasses the buffer roller 3 on its lower side, then passes through the upper side of the middle roller 2, then bypasses the lower buffer roller 3 inside the right buffer unit, and finally bypasses the buffer roller 3 on the upper side inside the right buffer unit, and finally moves to the right waiting for cutting. The whole process is as Figure 5 shown.

[0024] Compared with the prior art, two buffer structures are adopted in the present utility model. When the fabric passes through the two buffer units, the fabric has sufficient time to adjust its direction. The two buffers can also prompt the structure to have a large range of adjustment space, ensuring that the fabric can always be in the best taut state.

[0025] The structure of the present utility model is ingenious, can keep the fabric in the best tension state, has a large adjustment range, can adjust the running direction of the fabric, and can adjust the fabric multiple times to ensure the subsequent cutting quality.

Claims

1. A buffer device for a cloth cutting machine, characterized in that: The machine comprises a frame (1), wherein a middle roller (2) is arranged in the front-rear direction in the middle of the frame (1), the middle roller (2) is rotatable, and a buffer unit is provided on both the left and right sides of the middle roller (2); The buffer unit comprises two buffer rollers (3) arranged in a front-to-rear direction. The two buffer rollers (3) in the same buffer unit are arranged symmetrically up and down. Each buffer unit has two rotating plates (4). The ends of the buffer rollers (3) are mounted on the rotating plates (4). The two rotating plates (4) and the two buffer rollers (3) in the same buffer unit form a rectangular frame structure. A rotating shaft (5) is fixed in the middle of the rotating plate (4). The rotating shaft (5) and the frame (1) are hinged together via a torsion spring.

2. The buffer device of the cloth cutting machine according to claim 1, characterized in that: The middle roller (2) comprises a fixed shaft (6), the end of which is fixed on the frame (1), and a rotatable outer cylinder (7) is mounted on the fixed shaft (6).

3. The buffer device of the cloth cutting machine according to claim 2, characterized in that: The buffer roller (3) comprises a round rod (8), and a rotatable drum (9) is sleeved on the outer side of the round rod (8).

4. The buffer device of the cloth cutting machine according to claim 3, characterized in that: The outer circumferential surfaces of the outer cylinder (7) and the rotating cylinder (9) are both covered with a rubber layer.

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