阅读说明：本技术 粉末涂料加工用熔融挤出系统 (Melt extrusion system for powder coating processing ) 是由 李琳 于 2020-12-21 设计创作，主要内容包括：粉末涂料加工用熔融挤出系统,包括熔融挤出装置和缓存卸料装置,所述缓存卸料装置通过输料直管与所述熔融挤出装置的出料口连接。本发明通过在熔融挤出装置的出料口连接一缓存卸料装置,该缓存卸料装置的外缓存仓与内缓存仓采用可抽拉式设计,两者相互套接后可形成一个封闭的容置空间来暂时储存熔融料,大大降低了熔融料在一次出料完成前暴露在空气中的时间,而且熔融料自身的热量在这个封闭的空间内也不易散出,可以保持自身的挤出状态,这样等到熔融料在一次出料完成后,将内缓存仓抽拉出外缓存仓,熔融料团状体便可以从内缓存仓的底壁开口处落到下方的输送带上运送到下道压片加工工序。(The melt extrusion system for powder coating processing comprises a melt extrusion device and a buffer unloading device, wherein the buffer unloading device is connected with a discharge port of the melt extrusion device through a material conveying straight pipe. The discharge port of the melting extrusion device is connected with a buffer unloading device, the outer buffer bin and the inner buffer bin of the buffer unloading device are designed in a drawable mode, the outer buffer bin and the inner buffer bin can form a closed containing space after being sleeved with each other to temporarily store molten materials, the time of exposing the molten materials in the air before one-time discharging is completed is greatly shortened, the heat of the molten materials is not easy to dissipate in the closed space, the extrusion state of the molten materials can be kept, the inner buffer bin is drawn out of the outer buffer bin after one-time discharging of the molten materials is completed, and the molten material mass can be conveyed to a next tabletting process on a conveying belt which falls to the lower part from the opening of the bottom wall of the inner buffer bin.)

1. Powder coating processing is with melt extrusion system, including melt extrusion device (1), its characterized in that: the system also comprises a buffer unloading device (3), wherein the buffer unloading device (3) is connected with a discharge hole (1011) of the melt extrusion device (1) through a material conveying straight pipe (2); the buffer unloading device (3) comprises an outer buffer bin (301) with a square structure and an accommodating space, the outer buffer bin (301) is fixedly supported by a second bracket (302), one side wall of the outer buffer bin (301) is provided with an opening, a first through hole (3013) is arranged on the other side wall opposite to the opening, the inner cache bin (303) matched with the outer cache bin (301) is sleeved in a drawable manner, the bottom wall of the inner buffer bin (303) is opened, a second through hole (3031) is arranged on the side wall of the inner buffer bin (303) opposite to the first through hole (3013), one end of the material conveying straight pipe (2) is butted with the discharge hole (1011), the other end of the material conveying straight pipe sequentially penetrates through the first through hole (3013) and the second through hole (3031), the outer cache bin (301) and the inner cache bin (303) can form a closed accommodating space after being mutually sleeved.

2. A melt extrusion system for powder coating processing according to claim 1, wherein: and a second electric heating plate (3012) is arranged in a bin shell (3011) of the outer buffer bin (301).

3. A melt extrusion system for powder coating processing according to claim 2, wherein: the side face, opposite to the second through hole (3031), of the inner cache bin (303) is transversely and vertically connected with an expansion rod (305), the expansion rod (305) is pushed by an air cylinder (304) in an expansion and contraction mode, the air cylinder (304) is connected with an external air compressor (308) through an air inlet and outlet pipe (307), and the air cylinder (304) is fixedly supported through a third support (306).

4. A melt extrusion system for powder coating processing according to claim 1, wherein: the positions and the sizes of the first through hole (3013) and the second through hole (3031) are matched with the material conveying straight pipe (2).

5. A melt extrusion system for powder coating processing according to claim 3, wherein: an inclined block (3032) with a right-angled triangle-shaped longitudinal section is mounted on the inner side wall of the inner buffer bin (303) below the second through hole (3031), and the bottom surface of the inclined block (3032) is contacted with the inner bottom surface of the outer buffer bin (301).

6. A melt extrusion system for powder coating processing according to claim 2, wherein: the melt extrusion device (1) comprises a machine body (101), the machine body (101) is fixedly supported through a first support (102), a feed hopper (103) is arranged on the machine body (101), the machine body (101) comprises a machine barrel (1012), one end of the machine barrel (1012) is provided with a discharge port (1011), the other end of the machine barrel is provided with a driving motor (1014), an extrusion screw (1015) is horizontally arranged in the machine barrel (1012), one end of the extrusion screw (1015) is connected with a power output end of the driving motor (1014), and the other end of the extrusion screw extends to the discharge port (1011); a first electric heating plate (1013) is circumferentially arranged in the cylinder wall of the cylinder (1012).

7. A melt extrusion system for powder coating processing according to claim 6, wherein: the first and second electric heating plates (1013, 3012) and the drive motor (1014) are powered by an external power source.

Technical Field

The invention belongs to the technical field of powder coating processing, and particularly relates to a melt extrusion system for powder coating processing.

Background

The powder coating is a solid powder synthetic resin coating composed of solid resin, pigment, filler, auxiliary agent and the like. The powder coating processing needs to fully mix the raw materials according to a certain proportion, then melt and extrude, tablet and cut into semi-finished products, then crush and grind, remove the ultramicron part by using a cyclone separator, and then produce finished products, and then store the finished products in storage after detection and packaging.

However, in the conventional melt extrusion apparatus, after the premixed raw material is added, the discharge of the molten material is not completed at one time, but is continuously and slowly discharged, and when the discharge of the molten material is completed at one time, the molten material mass falling on the conveyor belt is exposed in the air for a relatively long time, so that a local hardening phenomenon occurs, which is not favorable for the tabletting process in the subsequent process, and therefore, improvement is needed.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a melt extrusion system for processing powder coating, which has the following specific technical scheme:

the melt extrusion system for processing the powder coating comprises a melt extrusion device and a buffer unloading device, wherein the buffer unloading device is connected with a discharge port of the melt extrusion device through a straight conveying pipe; the outer buffer storage bin of buffer storage discharge apparatus square structure including having the accommodation space, outer buffer storage bin passes through second support fixed stay, a lateral wall opening in outer buffer storage bin has seted up first through-hole on another lateral wall relative with this opening part, but outer buffer storage bin inner pull formula cup joints with it matched with inner buffer storage bin, inner buffer storage bin's diapire opening, inner buffer storage bin with the second through-hole has been seted up on the lateral wall relative with first through-hole, defeated material straight tube one end with the discharge gate butt joint, the other end passes in proper order first through-hole with the second through-hole, outer buffer storage bin with inner buffer storage bin can form a confined accommodation space after cup jointing each other.

Further, a second electric heating plate is arranged in the shell of the outer buffer bin.

Further, the inner buffer bin is transversely and vertically connected with a telescopic rod on the side face opposite to the second through hole, the telescopic rod is pushed by the telescopic cylinder in a telescopic mode, the cylinder is connected with an external air compressor through an air inlet and outlet pipe, and the cylinder is fixedly supported through a third support.

Furthermore, the positions and the sizes of the first through hole and the second through hole are matched with the material conveying straight pipe.

Furthermore, an inclined block with a right-angled triangle-shaped longitudinal section is installed on the inner side wall of the inner cache bin below the second through hole, and the bottom surface of the inclined block is in close contact with the inner bottom surface of the outer cache bin.

Further, the melt extrusion device comprises a machine body, the machine body is fixedly supported by a first support, a feed hopper is arranged on the machine body, the machine body comprises a machine barrel, one end of the machine barrel is provided with the discharge port, the other end of the machine barrel is provided with a driving motor, an extrusion screw is horizontally arranged in the machine barrel, one end of the extrusion screw is connected with a power output end of the driving motor, and the other end of the extrusion screw extends to the discharge port; and a first electric heating plate is circumferentially arranged in the cylinder wall of the machine cylinder.

Further, the first electric heating plate, the second electric heating plate and the driving motor are all powered by an external power supply.

The invention has the beneficial effects that:

the discharge port of the melting extrusion device is connected with a buffer unloading device, the outer buffer bin and the inner buffer bin of the buffer unloading device are designed in a drawable mode, the outer buffer bin and the inner buffer bin can form a closed containing space after being sleeved with each other to temporarily store molten materials, the time of exposing the molten materials in the air before one-time discharging is completed is greatly shortened, the heat of the molten materials is not easy to dissipate in the closed space, the extrusion state of the molten materials can be kept, the inner buffer bin is drawn out of the outer buffer bin after one-time discharging of the molten materials is completed, and the molten material mass can be conveyed to a next tabletting process on a conveying belt which falls to the lower part from the opening of the bottom wall of the inner buffer bin.

Drawings

FIG. 1 shows a side view of the structure of the present invention;

FIG. 2 shows a partial structural cross-sectional view of the present invention;

FIG. 3 is a schematic structural diagram of a buffer unloading device in the invention;

figure 4 shows a cross-sectional view of the outer buffer bin of the present invention.

Shown in the figure: 1. a melt extrusion device; 101. a body; 1011. a discharge port; 1012. a barrel; 1013. a first electrical heating plate; 1014. a drive motor; 1015. extruding a screw; 102. a first bracket; 103. a feed hopper; 2. a material conveying straight pipe; 3. a buffer discharging device; 301. an external cache bin; 3011. a bin shell; 3012. a second electrical heating plate; 3013. a first through hole; 302. a second bracket; 303. an internal cache bin; 3031. a second through hole; 3032. a sloping block; 304. a cylinder; 305. a telescopic rod; 306. a third support; 307. an air inlet pipe and an air outlet pipe; 308. an air compressor; 4. and (5) conveying the belt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1 and 2, the melt extrusion system for powder coating processing comprises a melt extrusion device 1, and further comprises a buffer unloading device 3, wherein the buffer unloading device 3 is connected with a discharge port 1011 of the melt extrusion device 1 through a straight conveying pipe 2; the buffer unloading device 3 comprises an outer buffer bin 301 with a square structure and an accommodating space, the outer buffer bin 301 is fixedly supported by a second support 302, one side wall of the outer buffer bin 301 is opened, the other side wall opposite to the opening is provided with a first through hole 3013, the inner buffer bin 301 is sleeved with an inner buffer bin 303 matched with the outer buffer bin in a drawable manner, the bottom wall of the inner buffer bin 303 is opened, the side wall of the inner buffer bin 303 opposite to the first through hole 3013 is provided with a second through hole 3031, one end of a material conveying straight pipe 2 is butted with a discharge hole 1011, the other end of the material conveying straight pipe sequentially penetrates through the first through hole 3013 and the second through hole 3031, and the outer buffer bin 301 and the inner buffer bin 303 are sleeved with each other to form a closed accommodating space; through the technical scheme, the buffer unloading device 3 is connected to the discharge port 1011 of the melt extrusion device 1, the outer buffer bin 301 and the inner buffer bin 303 of the buffer unloading device 3 are designed in a drawable manner, the buffer unloading device and the inner buffer bin 303 can form a closed accommodating space to temporarily store melt after being mutually sleeved, the time of exposing the melt in the air before one-time discharging is completed is greatly reduced, the heat of the melt is not easy to dissipate in the closed space, the extrusion state of the melt can be kept, the inner buffer bin 303 is drawn out of the outer buffer bin 301 after one-time discharging is completed, and the melt can be conveyed to a next tabletting process on the conveying belt 4 which falls to the lower part from the opening of the bottom wall of the inner buffer bin 303.

As shown in fig. 4, a second electric heating plate 3012 is arranged in the casing 3011 of the outer buffer bin 301; by the technical scheme, the added second heating plate 3012 can directly extrude and preserve the temperature of the molten material in the inner buffer bin 303.

As shown in fig. 1 to 3, a telescopic rod 305 is transversely and vertically connected to a side surface of the inner buffer bin 303 opposite to the second through hole 3031, the telescopic rod 305 is telescopically pushed by an air cylinder 304, the air cylinder 304 is connected to an external air compressor 308 by an air inlet and outlet pipe 307, and the air cylinder 304 is fixedly supported by a third bracket 306; by the technical scheme, the inner cache bin 303 and the outer cache bin 301 can be ensured to be transversely drawable.

As shown in fig. 2 and 3, the positions and sizes of the first through hole 3013 and the second through hole 3031 are both matched with the straight delivery pipe 2; by the technical scheme, the transverse movement of the inner buffer bin 303 is not influenced, and the infiltration of external air into the inner buffer bin 303 can be reduced.

As shown in fig. 2 and 3, an inclined block 3032 with a right-angled triangle-shaped longitudinal section is mounted on the inner side wall of the inner buffer bin 303 below the second through hole 3031, and the bottom surface of the inclined block 3032 is in surface contact with the inner bottom surface of the outer buffer bin 301; by this solution, the added oblique block 3032 helps the molten mass to fall smoothly onto the conveyor belt 4 below.

As shown in fig. 1 and 2, the melt extrusion apparatus 1 includes a body 101, the body 101 is fixedly supported by a first support 102, a feed hopper 103 is disposed on the body 101, the body 101 includes a cylinder 1012, one end of the cylinder 1012 is provided with a discharge port 1011, the other end is provided with a driving motor 1014, an extrusion screw 1015 is horizontally disposed in the cylinder 1012, one end of the extrusion screw 1015 is connected with a power output end of the driving motor 1014, and the other end extends to the discharge port 1011; a first electric heating plate 1013 is circumferentially arranged in the cylinder wall of the cylinder 1012; through the technical scheme, the base film plastic master batch is convenient to melt, extrude and discharge.

The first and second electric heating plates 1013 and 3012 and the driving motor 1014 are powered by an external power source.

When the melting extrusion device is implemented, firstly, the cylinder 304 drives the telescopic rod 305 to push the inner cache bin 303 into the outer cache bin 301, then rated plastic master batches of the base film are added into the feed hopper 103, the melting extrusion device 1 is started, a melting material is extruded from the discharge port 1011 and conveyed into a closed accommodating space formed by the inner cache bin 303 and the outer cache bin 301 through the delivery straight pipe 2, at the moment, the second electric heating plate 3012 is started to perform extrusion and heat preservation, after one-time discharging of the melting material is finished, the cylinder 304 is started to drive the telescopic rod 305 to pull the inner cache bin 303 out of the outer cache bin 301, and the melting material mass can fall onto the lower conveying belt 4 from the opening of the bottom wall of the inner cache bin 303 and conveyed to a next flattening processing procedure; the operation can be repeated to continue working.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.