A combined plastic coloring machine

Abstract

The present invention belongs to the technical field of plastic processing equipment, and particularly refers to a combined plastic coloring machine, comprising a mixer, a powder spraying bin and a metering bin. A powder spraying gun is arranged on the powder spraying bin, and a plurality of powder spraying bins are stacked up and down. The color of the color powder sprayed by the powder spraying gun corresponding to each powder spraying bin is different. The discharge port of the powder spraying bin on the bottom layer and the feed port of the mixer, and the discharge port of the powder spraying bin on the upper layer and the feed port of the powder spraying bin on the lower layer are all connected through a detachable connecting structure, and the discharge port of the metering bin and the feed port of the powder spraying bin on the top layer are connected through a detachable connecting structure. The upper and lower adjacent powder spraying bins of the present invention are connected through a detachable connecting structure, that is, the type and quantity of the color powder actually required are adjusted by means of disassembly and assembly. Compared with the prior art, there is no need to replace the color powder sprayed by the powder spraying gun. It is convenient to use and simple to operate, and is not limited by the structure size of the powder spraying bin.

Description

Technical field:

[0001] The invention belongs to the technical field of plastic processing equipment, in particular to a combined plastic coloring machine. Background technology:

[0002] Plastic products are indispensable products in people's lives, such as tableware, tables and chairs, vehicle supplies, toys, etc. Traditionally, plastic coloring is done by direct spraying, which is relatively simple, but the coloring effect is not good enough and it is easy to fade. Therefore, the existing plastic coloring has a method of directly mixing the color powder with the plastic raw material and directly forming the main color, which makes the coloring effect excellent and will not fade.

[0003] The fully automatic plastic coloring machine disclosed in the Chinese invention patent (publication number: CN106217670B) obtained by the applicant includes a mixer, a feed port is provided on the upper side of the mixer, a metering bin is provided above the mixer, a discharge port is provided on the lower side of the metering bin, a feed port is provided on the upper side, and the feed port of the mixer is connected with the discharge port of the metering bin; a powder spraying bin is provided between the mixer and the metering bin, a feed port connected with the discharge port of the metering bin is provided on the upper side of the powder spraying bin, a discharge port connected with the feed port of the mixer is provided on the lower side of the powder spraying bin, and at least one powder spraying gun controlled by a controller is provided in the powder spraying bin to spray powder into the powder spraying bin. Its working principle is to control the powder spraying operation of the powder spraying gun and the stirring operation of the mixer respectively through the controller, so that the color powder and the plastic raw material can be automatically mixed in a certain proportion.

[0004] In the above-mentioned equipment, in order to achieve the effect of mixing colors, multiple powder spray guns can be set in the powder spray bin to spray different colors of toner. However, due to the size of the powder spray bin, the actual structure cannot be equipped with too many powder spray guns, so the number of color types and the spraying amount of toner are greatly limited, and the applicability is low, which cannot meet the colorful needs of modern plastics; at the same time, the toner replacement operation of the powder spray gun is more troublesome, and toner is easy to remain in the powder spray gun. After the toner is replaced, the next toner and the previous toner are often cross-mixed. Summary of the invention:

[0005] The object of the present invention is to provide a combined plastic coloring machine capable of arbitrarily combining the color types and quantities of color powder.

[0006] The present invention is achieved in that:

[0007] The outstanding advantages of the present invention compared with the prior art are:

[0008] A combined plastic coloring machine comprises a mixer, a powder spraying bin and a metering bin, wherein the mixer, the powder spraying bin and the metering bin are provided with a feed inlet on the upper side and a discharge outlet on the lower side, the powder spraying bin is provided with a powder spraying gun capable of spraying color powder into the inner cavity of the corresponding powder spraying bin, a plurality of powder spraying bins are stacked up and down, and the color of the color powder sprayed by the powder spraying gun corresponding to each powder spraying bin is different, the discharge outlet of the powder spraying bin located at the bottom layer is connected to the feed inlet of the mixer, and the discharge outlet of the powder spraying bin on the upper layer is connected to the feed inlet of the powder spraying bin on the lower layer through a detachable connection structure, and the discharge outlet of the metering bin is connected to the feed inlet of the powder spraying bin on the top layer through a detachable connection structure;

[0009] Or a feeding port is also provided on the upper side of the mixer, and the discharge port of the metering bin is connected to the feeding port of the mixer via a detachable connection structure.

[0010] In the above-mentioned combined plastic coloring machine, a plurality of metering bins are stacked up and down, the discharge port of the metering bin on the upper layer is connected to the feed port of the metering bin on the lower layer through a detachable connection structure, and a feeding window is provided on the side wall of the metering bin.

[0011] In the above-mentioned combined plastic coloring machine, valves for closing or opening the corresponding feed ports or discharge ports are arranged in the powder spraying bin, the metering bin and the feed port or discharge port of the mixer.

[0012] In the above-mentioned combined plastic coloring machine, the detachable connection structure includes a plug-in cylinder and a plug-in groove, the plug-in cylinder is formed by the inner edge of the corresponding feed port or loading port extending upward along its axial direction, and the plug-in groove is opened on the end face of the corresponding discharge port.

[0013] In the above-mentioned combined plastic coloring machine, the detachable connection structure includes an internal thread and an external thread that match the threads. The external thread is opened on the inner ring wall corresponding to the feed port or the loading port, and the internal thread is opened on the outer ring wall corresponding to the discharge port.

[0014] In the above-mentioned combined plastic coloring machine, the powder spray gun is fixedly arranged on the outer peripheral surface of the powder spray bin, and the nozzle end of the powder spray gun is inserted inwardly into the inner cavity of the powder spray bin. A powder adding port connected to its nozzle end is provided on the upper side of the powder spray gun, and a powder box for filling color powder is provided on the powder adding port.

[0015] In the above-mentioned combined plastic coloring machine, a plurality of powder spraying guns are arranged on each of the powder spraying bins, and the powder spraying guns are distributed circumferentially along the axis of the corresponding powder spraying bin.

[0016] 1. The two upper and lower adjacent powder spray bins of the present invention are connected by a detachable connection structure, that is, the type and quantity of the color powder actually required can be adjusted by means of disassembly and assembly. Compared with the prior art, there is no need to replace the color powder sprayed by the powder spray gun. It is convenient to use and simple to operate, and is not limited by the structure size of the powder spray bin;

[0017] 2. The present invention has a plurality of metering bins stacked up and down, and two adjacent metering bins are connected by a detachable connection structure, thereby achieving the purpose of mixing and coloring a variety of plastic raw materials. Description of the drawings:

[0018] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0019] Figure 2 It is a schematic diagram of the structure of the powder spraying bin, the powder spraying gun and the powder box of the present invention;

[0020] Figure 3 It is a structural schematic diagram of an embodiment of the present invention.

[0021] In the figure: 1. mixer; 2. powder spraying chamber; 3. metering chamber; 4. powder spraying gun; 5. feeding window; 6. plug-in cylinder; 7. powder box. Specific implementation method:

[0022] The present invention is further described below with reference to specific embodiments. Figure 1 —3:

[0023] Embodiment 1:

[0024] A combined plastic coloring machine comprises a mixer 1, a powder spraying bin 2 and a metering bin 3. The mixer 1, the powder spraying bin 2 and the metering bin 3 are all provided with a feed port on their upper side and a discharge port on their lower side. The powder spraying bin 2 is provided with a powder spraying gun 4 capable of spraying color powder into the inner cavity of the corresponding powder spraying bin 2. A plurality of powder spraying bins 2 are stacked up and down, and the color of the color powder sprayed by the powder spraying gun 4 corresponding to each powder spraying bin 2 is different. The discharge port of the powder spraying bin 2 at the bottom layer is connected to the feed port of the mixer 1, and the discharge port of the powder spraying bin 2 at the upper layer is connected to the feed port of the powder spraying bin 2 at the lower layer through a detachable connection structure. The discharge port of the metering bin 3 is connected to the feed port of the powder spraying bin 2 at the top layer through a detachable connection structure.

[0025] Among them, since the upper and lower adjacent powder spray bins 2 are connected by a detachable connecting structure, the number of upper and lower stacking of the powder spray bins 2 can be determined according to actual needs, that is, the color type and quantity of the color powder actually required can be adjusted by disassembly and assembly. Compared with the existing technology, there is no need to replace the color powder sprayed by the powder spray gun 4. It is easy to use and simple to operate, and is not limited by the structural size of the powder spray bin 2.

[0026] Furthermore, in this embodiment, in order to achieve the purpose of mixing and coloring a variety of plastic raw materials, the metering bins 3 are stacked in a plurality of layers, the discharge port of the metering bin 3 of the upper layer is connected to the feed port of the metering bin 3 of the lower layer through a detachable connection structure, and a feeding window 5 is provided on the side wall of the metering bin 3. That is, the metering bin 3 also adopts the same design concept as the powder spraying bin 2, and the two adjacent metering bins 3 are connected by a detachable connection structure. The number of stacked metering bins 3 can be determined according to actual needs, and different types of plastic raw materials can be filled into the metering bin 3 through the feeding window 5 of the corresponding metering bin 3, and then enter the powder spraying bin 2 through the discharge port of the metering bin 3 located at the bottom.

[0027] At the same time, in order to enable the plastic filling of the metering bin 3, the color powder spraying of the powder spray gun 4 and the stirring of the mixer 1 to be carried out in an orderly manner, valves for closing or opening the corresponding discharge ports are provided in the discharge ports of the powder spray bin 2, the metering bin 3 and the mixer 1.

[0028] The working process is as follows: first, the valves on the metering bin 3, the powder spraying bin 2 and the mixer 1 are all in a closed state; secondly, different types of plastic raw materials are filled into the corresponding metering bin 3 through the feeding window 5, and the different types of plastic raw materials are filled in a certain proportion with the help of the metering scale on the metering bin 3; then, all the valves on the metering bin 3 are controlled to be opened, so that the different types of plastic raw materials in the metering bin 3 enter the powder spraying bin 2 located on the top layer at the same time, and the powder spraying gun 4 on the powder spraying bin 2 located on the top layer sprays color powder, so that the mixed plastic raw materials are colored; then, the valves of the powder spraying bin 2 are controlled to be opened from top to bottom, and when the mixed plastic raw materials pass through each layer of the powder spraying bin 2, the powder spraying gun 4 on the corresponding powder spraying bin 2 sprays color powder; finally, the mixed plastic raw materials and the mixed color powder enter the mixer 1 together, and the mixer 1 performs stirring work to achieve full mixing of the mixed plastic raw materials and the mixed color powder.

[0029] Furthermore, an implementation mode of the detachable connection structure is: the detachable connection structure includes a plug-in cylinder 6 and a plug-in groove that are plug-matched, the plug-in cylinder 6 is formed by the inner edge of the corresponding feed port or loading port extending upward along its axial direction, and the plug-in groove is provided on the end face of the corresponding discharge port, and the detachable connection structure of this embodiment adopts this implementation mode.

[0030] Another embodiment of the detachable connection structure is: the detachable connection structure includes an internal thread and an external thread that are threaded together, the external thread is provided on the inner ring wall corresponding to the feed port or the loading port, and the internal thread is provided on the outer ring wall corresponding to the discharge port. Of course, the detachable connection structure can also adopt other existing technologies to achieve the purpose of detachable connection.

[0031] In addition, the specific installation structure of the powder spray gun 4 is as follows: the powder spray gun 4 is fixedly arranged on the outer peripheral surface of the powder spray bin 2, the nozzle end of the powder spray gun 4 is inserted inwardly into the inner cavity of the powder spray bin 2, and a powder adding port connected to its nozzle end is opened on the upper side of the powder spray gun 4, and a powder box 7 for filling color powder is arranged on the powder adding port.

[0032] In order to evenly spray the toner in the powder spraying bin 2 and increase the upper limit of the toner spraying amount, a plurality of powder spraying guns 4 are provided on each powder spraying bin 2 , and the powder spraying guns 4 are circumferentially distributed along the axis of the corresponding powder spraying bin 2 .

[0033] Embodiment 2:

[0034] The structure of this embodiment is basically the same as that of the first embodiment, and the main difference is that a feeding port is further provided on the upper side of the mixer 1, and the discharge port of the metering bin 3 is connected to the feeding port of the mixer 1 through a detachable connection structure. That is, the mixed plastic raw materials in the metering bin 3 and the mixed color powder in the powder spraying bin 2 are separately fed into the mixer 1 and stirred and mixed in the mixer 1.

[0035] The above embodiment is only one of the preferred embodiments of the present invention, and is not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes made based on the shape, structure, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A combined plastic coloring machine, comprising a mixer (1), a powder spraying bin (2) and a metering bin (3), wherein the mixer (1), the powder spraying bin (2) and the metering bin (3) are provided with a feed inlet on the upper side and a discharge outlet on the lower side, and the powder spraying bin (2) is provided with a powder spraying gun (4) capable of spraying color powder into the inner cavity of the corresponding powder spraying bin (2), characterized in that: The powder spraying bins (2) are stacked in a plurality of layers, and the powder spraying guns (4) corresponding to each powder spraying bin (2) spray different colors of toner. The discharge port of the powder spraying bin (2) at the bottom layer and the feed port of the mixer (1) are connected via a detachable connection structure, as are the discharge port of the powder spraying bin (2) at the upper layer and the feed port of the powder spraying bin (2) at the lower layer. The discharge port of the metering bin (3) and the feed port of the powder spraying bin (2) at the top layer are connected via a detachable connection structure. Alternatively, a loading port is also provided on the upper side of the mixer (1), and the discharge port of the metering bin (3) is connected to the loading port of the mixer (1) via a detachable connection structure.

2. A combined plastic coloring machine according to claim 1, characterized in that: A plurality of metering bins (3) are stacked up and down, the discharge port of the metering bin (3) of the upper layer is connected to the feed port of the metering bin (3) of the lower layer via a detachable connection structure, and a feeding window (5) is provided on the side wall of the metering bin (3).

3. A combined plastic coloring machine according to claim 1 or 2, characterized in that: The powder spraying bin (2), the metering bin (3) and the feed port or the discharge port of the mixer (1) are provided with valves for closing or opening the corresponding feed port or the discharge port.

4. A combined plastic coloring machine according to claim 1 or 2, characterized in that: The detachable connection structure comprises a plug-in barrel (6) and a plug-in groove, wherein the plug-in barrel (6) is formed by extending upward along the axial direction of the inner edge of the corresponding feed port or loading port, and the plug-in groove is arranged on the end face of the corresponding discharge port.

5. A combined plastic coloring machine according to claim 1 or 2, characterized in that: The detachable connection structure comprises an inner thread and an outer thread which are matched with each other. The outer thread is provided on an inner ring wall corresponding to a feed port or a loading port, and the inner thread is provided on an outer ring wall corresponding to a discharge port.

6. A combined plastic coloring machine according to claim 1, characterized in that: The powder spray gun (4) is fixedly arranged on the outer peripheral surface of the powder spray bin (2), the nozzle end of the powder spray gun (4) penetrates inwardly into the inner cavity of the powder spray bin (2), the upper side surface of the powder spray gun (4) is provided with a powder adding port connected to the nozzle end thereof, and a powder box (7) for filling color powder is arranged on the powder adding port.

7. A combined plastic coloring machine according to claim 1 or 2, characterized in that: A plurality of powder spray guns (4) are arranged on each of the powder spray bins (2), and the powder spray guns (4) are distributed circumferentially along the axis of the corresponding powder spray bin (2).

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