Automatic material changing device for plastic coating color masterbatch

Abstract

The automatic material changing device comprises at least two material barrels provided with pneumatic valves, a connecting plate, a rack, an air cylinder, a collecting barrel and an industrial personal computer, the connecting plate is connected to the rack in a sliding mode and located below a feeding mechanism, the material barrels are installed on the connecting plate, and the air cylinder is installed on the connecting plate. The collecting barrel is installed on the connecting plate and located below the connecting plate, the air cylinder is arranged on the rack to drive the connecting plate to slide, and the industrial personal computer is in communication connection with the air cylinder and the pneumatic valve. The device has the beneficial effects that residual raw materials are used up, and waste of the raw materials is reduced; the equipment is automatically driven to replace the color masterbatch, so that the production efficiency is improved, and the influence of shutdown and startup lifting speed on the product quality is improved; and the manual operation cost is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of optical fibers, and particularly relates to an automatic color masterbatch changing device for plastic sleeving. BACKGROUND

[0002] The plastic sleeving process in the optical cable production process is an important process in the optical cable manufacturing process. The optical cable with a loose sleeve structure is mainly used in the entire optical communication construction, and accounts for more than 98%. The main reason is that the optical cable with a loose sleeve structure can provide good tensile properties and temperature properties, thus meeting the two most important indicators of the optical cable, i.e., the mechanical properties and the environmental properties of the optical cable. Therefore, the secondary plastic sleeving of the optical fiber is indispensable and crucial in all optical cable manufacturing processes. The optical fiber loss, tensile properties, temperature properties, long-term stability and other main properties of the optical cable are largely dependent on the quality of the secondary plastic sleeving. The plastic sleeving is to add a layer of loose sleeve tube outside the optical fiber, and to fill the loose sleeve tube with water-blocking grease. When lateral pressure is applied to the optical fiber sleeve, the deformation of the sleeve tube will not directly act on the optical fiber. The optical fiber is provided with further mechanical protection against pressure and tension. The important process in the plastic sleeving process is the extrusion process. After the plastic sleeving material is melted in the furnace, it is uniformly extruded to the surface of the optical fiber through the die. Since there are different numbers of sleeve tubes in one optical cable, it is necessary to distinguish the sleeve tubes by color. The color masterbatch supply process is used to mix the color masterbatch with the PP material to make the sleeve tube have different colors.

[0003] The current color masterbatch is manually added to the color masterbatch box. The color masterbatch is uniformly mixed into the PP material by the variable frequency motor driving screw at the lower part of the box, so as to dye the PP material into different colors. The sleeve is arranged on the surface of the optical fiber and is used for distinguishing. When the color is changed, the production line needs to be stopped, and the remaining color masterbatch in the color masterbatch barrel is manually poured out, and the inner wall residue is cleaned. Then, the new color masterbatch is poured in. Since there is still some color masterbatch left in the feeding barrel after the change, in order to avoid affecting the next color, the empty pipe needs to be opened, and the residual color masterbatch and PP material are completely extruded until they are clean, and then the next color can be opened.

[0004] The current production method has great waste, and has the following disadvantages: 1. Much raw material is wasted. The residual color masterbatch PP material in the middle section needs to be extruded out during color changing, causing waste of raw materials. 2. The production efficiency is low. During the color masterbatch changing, the production line needs to be stopped for changing and cleaning. SUMMARY

[0005] The application aims to overcome the shortcomings of the prior art, and provides an automatic color masterbatch changing device for plastic sleeving. The automatic color masterbatch changing device for over-molding, which is located on a feeding mechanism, comprises at least two material barrels provided with pneumatic valves, a connecting plate, a rack, a cylinder, a collecting barrel and an industrial computer.

[0006] The automatic color masterbatch changing device for over-molding further comprises an active unit, which comprises a base plate, a slide rail and a slide block.

[0007] The automatic color masterbatch changing device for over-molding further comprises notches formed on both sides of the bottom for facilitating the entry of color masterbatch into the collecting barrel and a through hole formed on the bottom for connecting the feeding mechanism.

[0008] The automatic color masterbatch changing device for over-molding further comprises a fixed end of the cylinder and a free end of the cylinder.

[0009] The automatic color masterbatch changing device for over-molding further comprises two vertical plates.

[0010] The automatic color masterbatch changing device for over-molding further comprises an output end of the feeding mechanism and a mixer.

[0011] The automatic color masterbatch changing device for over-molding further comprises a material level observer provided on the material barrel.

[0012] The automatic color masterbatch changing device for over-molding further comprises a vibration generator provided on the material barrel.

[0013] The automatic color masterbatch changing device for over-molding further comprises a discharge port of the material barrel, a connecting sleeve and a connecting plate. Advantages

[0014] The automatic color masterbatch changing device of the application ensures a fixed volume cavity after the pneumatic valve is closed, which is convenient for the industrial computer to calculate the switching action time, ensures that the remaining raw materials are just used up, and reduces the waste of raw materials.

[0015] The automatic color masterbatch changing device of the application can automatically change the color masterbatch under the starting state, improve the production efficiency, improve the influence of the stop-start lifting speed on the product quality, and reduce the labor operation cost. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a three-dimensional structure schematic diagram of the automatic color masterbatch changing device.

[0017] Figure 2 It is a three-dimensional structure schematic diagram of the automatic color masterbatch changing device. Figure 1

[0018] Figure 3 It is a front view of the three-dimensional structure schematic diagram. Figure 1

[0019] Figure 4 It is a top view of the three-dimensional structure schematic diagram. Figure 1

[0020] Figure 5 It is a structure schematic diagram of the movable unit.

[0021] Figure 6 It is a bottom view of the bottom plate.

[0022] Figure 7 It is a structure schematic diagram of the movable unit. Figure 5 DETAILED DESCRIPTION

[0023] The application will be described in detail below in combination with the drawings and specific embodiments. Embodiment one

[0024] As Figures 1 to 4 ​​​​The automatic color masterbatch changing device of the embodiment is located on the feeding mechanism and mainly consists of two material barrels 4 provided with pneumatic valves 5, a connecting plate 1, a rack (not shown in the figure), a cylinder 7, a collecting barrel 3 and an industrial computer. The connecting plate 1 is slidably connected to the rack and located below the feeding mechanism, the material barrel 4 is installed on the connecting plate 1, the collecting barrel 3 is installed on the connecting plate 1 and located below the connecting plate 1, and the cylinder 7 is arranged on the rack to drive the connecting plate to slide. The industrial computer is in communication connection with the cylinder 7 and the pneumatic valve 5. When the industrial computer controls the cylinder to drive the connecting plate to slide to the set position, the industrial computer controls the pneumatic valve 5 to deliver the color masterbatch in the material barrel 4 to the feeding mechanism for mixing operation, and the industrial computer controls the pneumatic valve 5 to deliver the residual color masterbatch in the material barrel 4 to the collecting barrel for residual color masterbatch collection operation.

[0025] The automatic color masterbatch changing device of the embodiment is designed to ensure that a fixed volume cavity is formed after the pneumatic valve is closed, so that the industrial computer can calculate the switching action time, ensure that the remaining raw materials are just used up, and reduce the waste of raw materials. On the other hand, the device can automatically drive the color masterbatch to be replaced under the condition that the device is started, improve the production efficiency, improve the influence of the stop-start lifting speed on the product quality, and reduce the labor operation cost. Embodiment two

[0026] On the basis of embodiment one, the connecting plate 1 of the embodiment is slidably connected to the rack through a movable unit, as shown in Figure 5 . The movable unit mainly consists of a bottom plate 6, a slide rail 61 and a sliding block 11. The bottom plate 6 is fixed to the rack, the slide rail 61 is laid on the bottom plate 6, and the sliding block 11 is fixedly connected with the connecting plate 1 and slidably connected with the slide rail 61. The slide rail of the embodiment is two straight rails arranged in parallel, and a space for the bottom end of the material barrel to pass through is left between the two straight rails.

[0027] The bottom plate 6 is provided with notches 62 on both sides for facilitating the color masterbatch to enter the collecting barrel, and the bottom plate 6 is provided with through holes 64 for communicating with the feeding mechanism, as shown in Figure 6 .

[0028] As shown in Figure 3 , the connecting mode of the material barrel 4 and the connecting plate of the embodiment is that the discharge port of the material barrel 4 is connected with a connecting sleeve 41 through a corresponding pneumatic valve. The connecting sleeve 41 is connected with the connecting plate 1 to realize the fixed connection of the material barrel 4 and the connecting plate 1. The lower end surface of the connecting sleeve 41 is slightly higher than the upper surface of the bottom plate, and when the lower end port position of the connecting sleeve 41 overlaps with the through hole position, the color masterbatch in the material barrel can be delivered to the feeding mechanism.

[0029] The fixed end of the cylinder 7 is fixedly connected with the bottom plate 6 through a connecting seat 71, and the free end of the cylinder is fixedly connected with the connecting plate 1 through an angle steel 72, as shown in Figure 5 .

[0030] The collecting barrel 3 of the embodiment is connected with the connecting plate 1 through two vertical plates 2 (the vertical plate on the other side is not shown). The two ends of the vertical plate are respectively provided with long holes, and the connecting plate and the collecting barrel are respectively provided with pin holes corresponding to the long holes. The adjustable connection between the vertical plate and the connecting plate and the collecting barrel is realized by inserting a fixing pin into the long hole and the corresponding pin hole.

[0031] The feeding mechanism of the embodiment is an auger containing a closed inner cavity. The output end of the feeding mechanism is in communication with the mixer. The input end of the feeding mechanism is located below the bottom plate 6 and opposite to the through hole 64.

[0032] Further design is that the material cylinder is provided with a material level observer for collecting the liquid level information of the color master batch in the barrel and a vibration generator 42 for removing residual color master batch by shaking. See Figure 2 .

[0033] The specific working process of the automatic color master batch changing device of the embodiment is as follows: when the order starts to be produced, the industrial computer calculates the required amount of color master batch at the tail end according to the order specifications through a program. When the calculated amount is equal to the stock of the feeding mechanism, the changing program starts to be executed. The industrial computer sends a signal to the electromagnetic valve of the cylinder 7 to drive the cylinder 7 to push the material cylinder 4-B installed on the connecting plate 1 away from the discharging position. The discharging barrel 4A containing the color of the next batch of orders is moved to the discharging position. After the industrial computer calculates that the color master batch in the feeding mechanism is used up, the electromagnetic valve of the corresponding pneumatic valve of the material cylinder 4A is signaled to open the pneumatic valve, and the new color master batch is injected into the feeding mechanism to complete the automatic changing. Since the color master batch has small particles, residual color master batch will be spilled during changing. The lower part is designed to have a collecting barrel 3 for collecting residual color master batch. When the operator is free, the program can be operated to drive the color master batch barrel 4B to open, pour the remaining color master batch into the collecting barrel 3, and drive the vibration generator (not shown in the figure) through the electromagnetic valve to make the residual material in the color master batch barrel 4B vibrate into the collecting barrel 3. Then, the pneumatic valve is closed, and the color master batch required by the next order is added. This process can be completed when the machine is started, and there is no need to stop the machine for operation.

[0034] The technical solutions of the present application are not limited to the above embodiments. Any technical solution obtained by equivalent replacement falls within the scope of the present application.

Claims

1. A device for automatic change of plastic color masterbatch overmolding, said device is located on a feeding mechanism, characterized in that The application relates to a color masterbatch feeding device, which comprises at least two color masterbatch containers, a connecting plate, a rack, a cylinder, a collecting barrel and an industrial computer, the connecting plate is slidably connected to the rack and is located below a feeding mechanism, the color masterbatch containers are installed on the connecting plate, the collecting barrel is installed on the connecting plate and is located below the connecting plate, the cylinder is arranged on the rack to drive the connecting plate to slide, the industrial computer is in communication connection with the cylinder and the pneumatic valve, when the connecting plate is driven by the cylinder to slide to a set position, the industrial computer controls the pneumatic valve to feed color masterbatch in the color masterbatch container to the feeding mechanism for mixing operation, and the industrial computer controls the pneumatic valve to feed residual color masterbatch in the color masterbatch container to the collecting barrel for residual color masterbatch collection operation.

2. The automatic changing device for plastic color masterbatch over-molding according to claim 1, characterized in that The connecting plate is slidably connected to the rack through a movable unit, the movable unit comprises a bottom plate, a slide rail and a slide block, the bottom plate is fixed to the rack, the slide rail is laid on the bottom plate, and the slide block is fixedly connected with the connecting plate and is in sliding connection with the slide rail.

3. The automatic colorant changing device for the plastic sleeve colorant masterbatch according to claim 2, characterized in that Both sides of the bottom plate are provided with notches for facilitating color masterbatch to enter the collecting barrel, and the bottom plate is provided with a through hole for being communicated with the feeding mechanism.

4. The automatic changing device for plastic color masterbatch over-molding according to claim 3, characterized in that The fixed end of the cylinder is fixedly connected with the bottom plate, and the free end of the cylinder is fixedly connected with the connecting plate.

5. The automatic change device for plastic color masterbatch over-molding according to claim 1, characterized in that The collecting barrel is connected with the connecting plate through two vertical plates.

6. The automatic change device for plastic color masterbatch over-molding according to claim 2, characterized in that The output end of the feeding mechanism is communicated with a mixer, and the input end of the feeding mechanism is located below the bottom plate and is opposite to the through hole.

7. The automatic change device for plastic color masterbatch over-molding according to claim 1, characterized in that A material level observer is arranged on the color masterbatch container.

8. The automatic change device for plastic color masterbatch over-molding according to claim 1, characterized in that A vibration generator is arranged on the color masterbatch container.

9. The automatic change device for plastic color masterbatch over-molding according to claim 1, characterized in that A connecting sleeve is connected with a corresponding pneumatic valve at the discharge port of the color masterbatch container, and the connecting sleeve is in penetrating connection with the connecting plate to realize fixed connection of the color masterbatch container and the connecting plate.

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