CN205381784U - Continuous coiling mechanism - Google Patents

Abstract

The utility model discloses a continuous winding device. The continuous winding device comprises: a pressure roller which is rotatably installed on a machine frame, and a wheel device located downstream of the pressure roller. The shifting and pressing device is located on one side of the frame; the wheel disc device includes a wheel disc driven by the wheel power device and two sets of shaft core units arranged on the wheel disc; each set of shaft core units includes a wheel driven by the shaft core power device The shaft core is parallel to the pressure roller; a cutter device is arranged between the pressure roller and the wheel device. During continuous winding, the material is wound on one of the shaft cores, and when the shaft core rotates to take up the material to a full roll, the wheel rotates to make the positions of the two shaft cores interchange, and the cutting knife will be positioned between the material roll and the press. The material between the rollers is cut off; the cut material is wound on another shaft core to continue coiling, and the roll change is completed without stopping the machine, which saves the time for roll change, realizes continuous production, and improves production efficiency.

Description

Continuous winding device

technical field

The utility model relates to the technical field of material rewinding, in particular to a continuous rewinding device and a continuous rewinding method, which can automatically and continuously collect materials.

Background technique

The winding device is widely used in the winding processing and production of paper rolls, cloth rolls, plastic rolls, metal coils and other materials. Taking the rewinding of die-cut self-adhesive and other materials by a traditional flexo printing machine as an example, the working principle of waste collection is shown in Figure 1: the material 9 is die-cut by the die-cutting unit 10, and passes through the guide roller 1 After the pair of rollers with the pressure roller 2, the finished product is separated from the waste material, and the finished product is collected after passing through the guide roller 3; the waste material is wound up on the paper core 40 after the pressure roller 2 and gradually integrated into a waste material roll 4, at one end of the waste material roll 4 The outer side is equipped with a sliding and pressing device; during the process of coiling and enlarging the waste material roll 4, the sliding and pressing device carries the waste material roll 4 and slides along the longitudinal direction of the machine body, and applies tension through a tensioning device such as a cylinder to make the waste material roll 4 It is always pressed on the pressure roller 2, and the pressure roller 2 plays the role of pressing and smoothing the waste material roll 4, so that the whole waste material roll 4 after winding is compact, smooth and beautiful, and the winding quality is improved. For details, please Refer to the Chinese utility model patent of ZL201220539168.6, "a printing machine waste discharge device". However, the problem with the waste discharge device of the printing machine is that after the waste material is fully collected, the paper roll needs to be stopped to replace the paper roll, which wastes a lot of time and reduces production efficiency.

Contents of the invention

In view of this, the first technical problem to be solved by the utility model is: to provide a continuous winding device, which can realize continuous production without stopping when changing rolls, save time and improve production efficiency.

In order to solve the above-mentioned first technical problem, the technical solution of the utility model is: a continuous winding device,

include:

Pressing rollers, the pressing rollers are horizontally arranged and rotatably mounted on the frame;

A roulette device, the roulette device is located downstream of the pressure roller and is arranged on a slipping and pressing device, and the sliding and pressing device is located on one side of the frame; the roulette device includes a vertical A rotatable wheel, a wheel power device connected to the wheel, and two sets of shaft core units arranged on the wheel; each set of the shaft core unit includes a rotating shaft core and the A shaft core power device connected to the shaft core, the shaft core is parallel to the pressure roller;

A cutter device, the cutter device is arranged between the pressing roller and the wheel device, and the cutter device includes a cutter and a cutter power device connected with the cutter.

Preferably, the shaft cores of the two sets of shaft core units are located in the same diameter direction of the wheel disk.

Preferably, the sliding and pressing device includes a guide rail arranged longitudinally, a carriage slidably disposed on the guide rail, and a tensioning device connected at one end to the carriage, and the wheel device is arranged on the carriage. on the shelf.

Preferably, the tension applying device is an air cylinder, a hydraulic cylinder or a tension spring.

Based on a general idea of the utility model, the second technical problem to be solved by the utility model is to provide a continuous winding method using the above-mentioned continuous winding device.

In order to solve the above-mentioned second technical problem, the technical solution of the present invention is: the winding method of the continuous winding device, comprising the following steps:

S1. The material is wound on one of the shaft cores by winding the pressure roller, and the power device of the shaft core drives the shaft core to rotate around the center of the shaft core to take up the material. During the roll enlargement process, the sliding and pressing device drives the wheel device to translate longitudinally and gradually move away from the pressure roller. During the translation process, the sliding and pressing device applies tension to keep the material roll and the roller surface of the pressing roller in contact and pressing;

S2. After the material roll reaches the specified size, the wheel power device drives the wheel to rotate around the center of the wheel, and the wheel drives the material roll and another shaft core to rotate; during the rotation of the wheel, the sliding and pressing device applies tension to make the wheel device Translate along the longitudinal direction and gradually approach the pressure roller, the material roll and the roller surface of the pressure roller are always in contact with each other, and the other axis is driven by the axis power device to rotate around its axis center;

S3. When the wheel turns to the other shaft core and the material roll is in contact with the pressure roller, the wheel drives the material roll back, the material roll is out of contact with the pressure roller, and the cutter power device drives the cutter to move, and will be positioned between the material roll and the pressure roller. Material cutting between rollers;

S4. The cut material is wound onto the other shaft core to complete the roll change; after that, steps S1, S2 and S3 are repeated.

Due to the adoption of the above-mentioned technical scheme, the continuous winding device of the present invention is provided with a wheel device on the sliding pressing device on one side of the frame downstream of the pressure roller, and the wheel device includes a rotatable wheel driven by a wheel power device. The vertically installed wheel disc and two sets of shaft core units are arranged on the wheel disc. Each set of shaft core unit includes a shaft core parallel to the pressure roller and driven by the shaft core power device. The gap between the pressure roller and the wheel disc device is There is a cutter device; when the continuous winding device of the utility model is used for continuous winding, the material is wound on one of the shaft cores through the pressure roller, and the shaft core rotates to take up the material, and the material roll reaches the specified size. , when the wheel rotates, it drives the roll and the other axis to rotate. When the other axis and the roll are in contact with the pressure roller, due to the interaction force between the other axis and the pressure roller, the other axis will The pressure roller exerts a thrust, and the pressure roller exerts a reaction force on the other shaft core, so that the wheel disk drives the material roll back, the material roll is out of contact with the pressure roller, and the material between the material roll and the pressure roller is cut off by the cutter; The cut material is wound on the other shaft core, and the material is continued to be coiled, and the roll change is completed without stopping the machine, which saves the time for roll change, realizes continuous production, and improves production efficiency.

Description of drawings

Figure 1 is a schematic diagram of the traditional flexographic printing machine for the collection of self-adhesive waste after die-cutting;

Fig. 2 is a schematic structural diagram of the continuous winding device of the present invention (initial state, shaft core A is ready to be wound);

Fig. 3 is a schematic diagram of the state of the shaft core A in Fig. 2 being fully rolled;

Fig. 4 is a schematic diagram of the state in which the wheel disc in Fig. 3 is turned to the shaft core B and the material roll is in contact with the pressure roller;

Fig. 5 is a schematic diagram of the state of the cutter cutting the material after the material roll and the pressure roller are out of contact in Fig. 4;

Fig. 6 is a schematic diagram of returning to the initial state of the shaft core B in Fig. 5 and preparing for winding;

In the figure: 1-guide roller; 2-pressure roller; 3-guide roller; 4-waste roll; 40-paper core; - cutter; 9-material; 91-backing paper; 92-waste; 10-die-cutting unit; A-shaft core; A0-shaft core center; B-shaft core; B0-shaft core center; L-L-guide rail.

detailed description

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail by taking the automatic continuous winding of the die-cut sticker waste by a flexographic printing machine as an example, combined with the accompanying drawings . It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

The "connection" mentioned in this article should be understood in a broad sense, and it can be that two components are directly connected or indirectly connected through an intermediary. For those of ordinary skill in the art, the meaning can be understood according to specific situations. The arrows in the figure show the direction of the material. Define the material entering the continuous winding device as "front", leaving it as "rear", and the direction from front to back as "longitudinal".

As shown in Figure 2, the continuous winding device of the present utility model comprises: the pressing roller 5 that is positioned at die-cutting unit 10 downstreams, and pressing roller 5 is arranged horizontally and is installed on the frame by bearing rotation; A roulette device, the roulette device is arranged on a sliding and pressing device, and the sliding and pressing device is located on one side of the frame; wherein, the roulette device includes a vertically arranged rotatable wheel driven by a roulette power device Disc 6, and two sets of shaft core units arranged on the wheel disc 6; wherein one set of shaft core units includes shaft core A driven by its shaft core power device, and the other set of shaft core units includes shaft core A driven by its shaft core power unit. The shaft core B driven by the power unit is rotated, and the shaft core A and the shaft core B are all arranged in parallel with the pressure roller 5. The shaft core A and the shaft core B are preferably positioned on the same diameter direction of the wheel disc 6, so that the coiling The radial size of the material roll is relatively large; as shown in Figure 5, a cutter device is provided between the pressure roller 5 and the wheel device, and the cutter device includes a cutter 8 driven by a cutter power device.

Above-mentioned roulette power unit, axle core power unit, for example, can adopt the belt transmission device, chain transmission device or gear transmission device driven by motor; The knife way, or the rotary cutting way, or the shearing way. These power devices are conventional power devices well known to those skilled in the art, and will not be described in detail here.

For the structure of the above-mentioned sliding and pressing device, please refer to the Chinese utility model patent of ZL201220539168.6, "A Waste Discharging Device for a Printing Machine", which will not be illustrated in detail here. Wherein, the sliding pressing device comprises a guide rail arranged longitudinally, a carriage slidingly arranged on the guide rail, and a tensioning device connected to the carriage at one end, wherein the wheel disc device is arranged on the carriage, and the tensioning device preferably adopts an air cylinder Of course, hydraulic cylinders or tension springs can also be used.

Utilize above-mentioned continuous winding device to carry out the method for continuous winding as follows:

S1, as shown in Figure 2, the die-cutting unit 10 die-cuts the material 9, and after passing through the pair of rollers, the guide roller 1 and the pressure roller 5, the backing paper 91 is separated from the waste material 92, and the backing paper 91 enters through the guide roller 3 In the next process, the waste material 92 is wound on the shaft core A around the pressure roller 5, and the shaft core power device drives the shaft core A to rotate clockwise around its shaft core center A0 (ie, rotation) to take up the waste material. During the coiling process, the material roll increases continuously. During the process of increasing the material roll, the carriage drives the wheel device to translate along the longitudinally arranged guide rail L-L (that is, the G-H direction in the figure), and gradually moves away from the pressure roller 5. During the translation process, the cylinder The slide rack applies a pulling force so that the roll surface of the material roll 7 and the pressure roller 5 is always kept in contact with each other, so that the material roll is tight, smooth and beautiful, and the winding quality is improved.

S2. As shown in Fig. 3, after the material roll 7 is fully rolled up to the specified size, the wheel power device drives the wheel 6 to rotate clockwise around the wheel center 60, and at the same time, the wheel 6 drives the material roll 7 and the shaft core B to rotate ( That is, revolution); during the rotation of the wheel disc 6, the cylinder exerts a pulling force on the carriage, and the wheel disc device translates along the longitudinal guide rail L-L, and gradually approaches the pressure roller 5, and the roll surface of the material roll 7 and the pressure roller 5 is always kept in contact with each other. However, the contact point between the material roll 7 and the pressure roller 5 is constantly changing, and the shaft core B is driven by the shaft core power device to accelerate and rotate around the axis center B0 until it is synchronized with the linear speed of the material roll 7;

S3. As shown in Figure 4, when the wheel 6 rotates to the point where the axis B and the material roll 7 are in contact with the pressure roller 5, the material roll 7 turns around the pressure roller 5 through a certain angle, and the distance between the axis B and the pressure roller 5 An interaction force is generated between them, the shaft core B exerts a thrust on the pressure roller 5, and the pressure roller 5 exerts a reaction force on the shaft core B, so that the wheel disc 6 drives the material roll 7 to retreat slightly, and the material roll 7 is out of contact with the pressure roller 5, as As shown in Fig. 5, the cutting knife power device drives the cutting knife 8 to move along the D direction, and cuts off the waste 92 located between the material roll 7 and the pressure roller 5;

S4, as shown in Figure 6, the waste material 92 after cutting is wound on the axle core B, completes changing roll, gets back to initial state, and axle core power device drives this axle core B to rotate clockwise around its axle core center B0 (promptly rotating ) so as to continue to take up the waste material, and the material roll 7 is unloaded from the shaft core A; after that, steps S1, S2 and S3 are repeated.

The continuous winding device of the utility model completes roll changing without stopping the machine, saves the time for changing rolls, realizes continuous production, and improves production efficiency.

The above is only taking the automatic continuous winding of the die-cut sticker waste by the flexographic printing machine as an example, and the continuous winding device and the continuous winding method of the utility model have been described in detail. Of course, the utility model is not limited to the field of flexographic printing machines, and can also be widely used in non-stop continuous winding of materials such as paper, cloth, plastic, and metal.

Claims (4)

1. The continuous winding device is characterized in that, comprising: Pressing rollers, the pressing rollers are horizontally arranged and rotatably mounted on the frame; A roulette device, the roulette device is located downstream of the pressure roller and is arranged on a slipping and pressing device, and the sliding and pressing device is located on one side of the frame; the roulette device includes a vertical A rotatable wheel, a wheel power device connected to the wheel, and two sets of shaft core units arranged on the wheel; each set of the shaft core unit includes a rotating shaft core and the A shaft core power device connected to the shaft core, the shaft core is parallel to the pressure roller; A cutter device, the cutter device is arranged between the pressure roller and the wheel device, and the cutter device includes a cutter and a cutter power device connected with the cutter. 2. The continuous winding device according to claim 1, wherein the shaft cores of the two sets of the shaft core units are located in the same diameter direction of the wheel disk. 3. The continuous winding device according to claim 1 or 2, wherein the sliding pressing device comprises a guide rail arranged longitudinally, a carriage slidingly arranged on the guide rail, and one end connected to the slide The tension applying device connected with the frame, the wheel device is arranged on the sliding frame. 4. The continuous winding device according to claim 3, characterized in that, the tension applying device is an air cylinder, a hydraulic cylinder or a tension spring.