Double-material differential traction cold cutting device

Abstract

The utility model discloses a double material differential speed traction cold cutting equipment, including the frame, be equipped with a plurality of guide roller and cold cutting knife on the frame, its characterized in that: still be equipped with the first unwinding mechanism and the second unwinding mechanism of up and down staggered distribution or left and right distribution on the frame, and the first unwinding mechanism and the second unwinding mechanism are respectively equipped with the first traction mechanism and the second traction mechanism, be equipped with the spring winding traction roller group before the cold cutting knife, the material staggered that the first traction mechanism and the second traction mechanism draw enters the spring winding traction roller group, and the first traction mechanism and the upper roller of spring winding traction roller group synchronous linkage, the second traction mechanism and the lower roller of spring winding traction roller group synchronous linkage, the first traction mechanism and the second traction mechanism have different traction speed. The utility model discloses differential speed transmission, realizes the synchronous cutting of different long and short materials.

Description

Technical Field

[0001] This utility model relates to an improved invention of a cold cutting machine, and more particularly to an improved invention of a dual-material differential speed traction cold cutting device. Background Technology

[0002] The core pain point in color printing bag production is the uncontrollable cumulative error: During the continuous printing process, the elasticity difference of the material and the tension fluctuation cause the bag to stretch unevenly, resulting in a small error in the length direction; the problem of blank area processing: the accumulation of errors makes it impossible for the printed pattern to completely cover the bag surface, and the excess blank edges need to be trimmed. However, the length of the blank area of ​​different batches, and even the same batch of bags, is different, and traditional equipment cannot dynamically adapt to it.

[0003] The limitations of existing cold-cutting equipment are: single-layer rigid traction: it can only support uniform traction of a single roll of material and cannot process two rolls of material with different errors simultaneously; no differential speed compensation mechanism: the cutting blade position is fixed, making it difficult to match bags of different lengths, resulting in cutting deviation or material waste; efficiency bottleneck: it needs to process materials with different errors in batches, resulting in frequent downtime for material replacement and significant capacity loss. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a dual-material differential traction cold cutting device.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: This dual-material differential speed traction cold cutting equipment includes a frame, on which a plurality of guide rollers and cold cutting blades are provided. The frame is characterized by the following features: a first unwinding mechanism and a second unwinding mechanism are provided on the frame, staggered vertically or horizontally; the first unwinding mechanism and the second unwinding mechanism are respectively equipped with a first traction mechanism and a second traction mechanism; a coiled spring traction roller group is provided in front of the cold cutting blade; the material traction by the first traction mechanism and the second traction mechanism enters the coiled spring traction roller group in a staggered manner; the upper roller of the first traction mechanism and the coiled spring traction roller group are synchronously linked; the lower roller of the second traction mechanism and the coiled spring traction roller group are synchronously linked; and the first traction mechanism and the second traction mechanism have different traction speeds.

[0006] Both the first traction mechanism and the second traction mechanism include an upper traction roller and a lower traction roller that cooperate with each other. Any traction roller of the first traction mechanism is linked with the upper roller of the wound spring traction roller group, and any traction roller of the second traction mechanism is linked with the lower roller of the wound spring traction roller group.

[0007] The wound spring traction roller assembly includes a first upper roller, a first lower roller, a second upper roller, and a second lower roller. Springs are wound at intervals between the first upper roller and the second upper roller, and springs are wound at intervals between the first lower roller and the second lower roller.

[0008] Both the first unwinding mechanism and the second unwinding mechanism include an unwinding roller, and a tensioning mechanism, a correction mechanism, and a heat sealing mechanism are provided on the unwinding path.

[0009] The lower roller of the wound spring traction roller assembly is equipped with a magnetic powder brake.

[0010] The beneficial effect of this utility model is that the improved dual-material differential speed traction cold cutting equipment, through the differential transmission of the first traction mechanism and the second traction mechanism, combined with the differential isolation of the wound spring traction roller group, can adapt to materials with arbitrary length error, realize the synchronous cutting of materials of different lengths, and process two rolls of materials simultaneously, thereby improving the utilization rate of the equipment. Attached Figure Description

[0011] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings.

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 This is a structural diagram of the wound spring traction roller assembly of this utility model. Detailed Implementation

[0014] The accompanying drawings illustrate the structure of this utility model, and further details will be described below with reference to the drawings. In this embodiment, see the attached drawings. Figure 1-2 The dual-material differential traction cold cutting equipment includes a frame 1, on which several guide rollers and cold cutting blades 2 are provided. The frame 1 is also provided with a first unwinding mechanism 3 and a second unwinding mechanism 4 that are staggered vertically or horizontally. The first unwinding mechanism 3 and the second unwinding mechanism 4 are respectively equipped with a first traction mechanism 5 and a second traction mechanism 6. A spring-wound traction roller group 7 is provided in front of the cold cutting blade 2. The material pulled by the first traction mechanism 5 and the second traction mechanism 6 enters the spring-wound traction roller group 7 in a staggered manner. The upper roller of the first traction mechanism 5 and the spring-wound traction roller group 7 are synchronously linked, and the lower roller of the second traction mechanism 6 is synchronously linked. The first traction mechanism 5 and the second traction mechanism 6 have different traction speeds, which are determined according to the material error length.

[0015] As a further improved implementation, both the first traction mechanism 5 and the second traction mechanism 6 include upper and lower traction rollers that cooperate with each other. Any traction roller of the first traction mechanism 5 is linked to the upper roller of the spring-wound traction roller group 7, and any traction roller of the second traction mechanism 6 is linked to the lower roller of the spring-wound traction roller group 7. This creates a speed difference between the upper and lower rollers of the spring-wound traction roller group 7, corresponding to the conveying speeds of the two materials respectively, allowing the materials to be conveyed at their original speeds. The linkage can be achieved using a synchronous pulley or a synchronous belt.

[0016] As a further improved specific implementation, the wound spring traction roller group 7 includes a first upper roller 71, a first lower roller 72, a second upper roller 73, and a second lower roller 74. Springs 75 arranged at intervals are wound between the first upper roller 71 and the second upper roller 73, and springs 75 arranged at intervals are wound between the first lower roller 72 and the second lower roller 74. Spring mounting grooves are provided on the corresponding roller surfaces. That is, material conveying is achieved by using upper and lower springs, and there is a gap and deformation space between the upper and lower springs. Under differential speed conditions, and under the original traction force of the material, the material will slide between the upper and lower springs to maintain the original speed of conveying.

[0017] As a further improved implementation, both the first unwinding mechanism 3 and the second unwinding mechanism 4 include unwinding rollers, and a tensioning mechanism, a correction mechanism, and a heat sealing mechanism are provided on the unwinding path to realize the integration of the entire process of "unwinding → correction → heat sealing → cutting".

[0018] As a further improved specific implementation, the lower roller of the wound spring traction roller group 7 is equipped with a magnetic powder brake, which plays a role in transmitting torque and braking.

[0019] The working principle of this utility model is that two rolls of color-printed bag material with different errors are unwound by the first unwinding mechanism 3 and the second unwinding mechanism 4 respectively, and are distributed on a staggered path. The first traction mechanism 5 and the second traction mechanism 6 respectively perform differential traction according to different traction speeds set according to the error, so that the material enters the wound spring traction roller group 7 in a staggered manner, maintains the original speed, and forms support. Finally, it enters the cold cutting knife 2 for cutting, realizing the synchronous cutting of materials of different lengths.

[0020] In summary, the above are merely preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dual-material differential traction cold cutting device, comprising a frame, wherein the frame is provided with a plurality of guide rollers and cold cutting blades, characterized in that: The frame is also equipped with a first unwinding mechanism and a second unwinding mechanism that are staggered vertically or horizontally. The first unwinding mechanism and the second unwinding mechanism are respectively equipped with a first traction mechanism and a second traction mechanism. A spring-wound traction roller group is provided in front of the cold cutting knife. The material pulled by the first traction mechanism and the second traction mechanism enters the spring-wound traction roller group in a staggered manner. The upper roller of the first traction mechanism and the spring-wound traction roller group are synchronously linked, and the lower roller of the second traction mechanism is synchronously linked. The first traction mechanism and the second traction mechanism have different traction speeds.

2. The dual-material differential traction cold cutting equipment as described in claim 1, characterized in that: Both the first traction mechanism and the second traction mechanism include an upper traction roller and a lower traction roller that cooperate with each other. Any traction roller of the first traction mechanism is linked with the upper roller of the wound spring traction roller group, and any traction roller of the second traction mechanism is linked with the lower roller of the wound spring traction roller group.

3. The dual-material differential traction cold cutting equipment as described in claim 1, characterized in that: The wound spring traction roller assembly includes a first upper roller, a first lower roller, a second upper roller, and a second lower roller. Springs are wound at intervals between the first upper roller and the second upper roller, and springs are wound at intervals between the first lower roller and the second lower roller.

4. The dual-material differential traction cold cutting equipment as described in claim 1, characterized in that: Both the first unwinding mechanism and the second unwinding mechanism include an unwinding roller, and a tensioning mechanism, a correction mechanism, and a heat sealing mechanism are provided on the unwinding path.

5. The dual-material differential traction cold cutting equipment as described in claim 1, characterized in that: The lower roller of the wound spring traction roller assembly is equipped with a magnetic powder brake.

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