A multi-stage mixing extrusion device for foamed materials

Abstract

The utility model relates to a kind of multistage mixing extrusion device for foamed material, especially in the technical field of mixing processing equipment.It includes mixing box, feeding rod, helical blade, rotating motor, water tank, water pipe, discharge pipe, connecting piece, anti-blocking mechanism.The problem that the existing extrusion screw is easily damaged due to heating caused by long time high-speed rotation is overcome, and the current foamed material is easily blocked in the process of extrusion.

Description

Technical Field

[0001] This utility model relates to the field of mixing and processing equipment technology, and in particular to a multi-stage mixing and extrusion device for foamed materials. Background Technology

[0002] Currently, in the field of polymer material processing, plastic extruders are widely used in the processing and manufacturing of films, pipes, profiles, foamed products, and polymer composite materials. Single-screw extruders are one of the most commonly used types of plastic extruders.

[0003] Extrusion screws are prone to damage due to overheating when rotating at high speeds for extended periods. At the same time, the material near the screw is at a high temperature, which increases the viscosity of the material, reduces its flowability, and causes some material to scorch, affecting the extrusion molding process and the quality of the final product. In addition, the discharge port of current foamed materials is prone to blockage during the extrusion process. Utility Model Content

[0004] (1) Technical problems to be solved

[0005] This invention provides a multi-stage compounding and extrusion device for foamed materials, which overcomes the problem that existing extrusion screws are easily damaged due to heat generation during long-term high-speed rotation; and that the discharge port of current foamed materials is prone to blockage during the extrusion process.

[0006] (2) Technical solution

[0007] To solve the above-mentioned technical problems, this utility model provides a multi-stage mixing and extrusion device for foamed materials, including a mixing box, a feeding rod, a spiral blade, a rotating motor, a water tank, a water pipe, a discharge pipe, a connector, and an anti-blocking mechanism.

[0008] A pair of feeding rods are rotatably mounted inside the mixing box; the outer ends of the feeding rods are provided with spiral blades; the outer walls of both sides of the mixing box are provided with rotating motors that drive the feeding rods to rotate; a feed inlet is provided on the top left side of the mixing box; an exhaust pipe is provided on the top right upper part of the mixing box; a connecting plate is provided on the outer side wall of the mixing box; a water tank is provided at the upper end of the connecting plate; the feeding rods have a hollow internal structure, and the water tank and the inside of the feeding rods are connected by a water pipe; a discharge port is provided at the bottom right side of the mixing box; the discharge port is connected to the discharge pipe through a connector; the discharge pipe is provided with an anti-clogging mechanism.

[0009] Preferably, the bottom of the mixing box is provided with several support legs.

[0010] Preferably, the connector includes a fixing block, a snap-fit ​​groove, a first spring, and a snap-fit ​​ball;

[0011] The outer wall of the mixing box is also provided with the fixing block, and the fixing block and the discharge pipe are provided with the snap-fit ​​groove; the snap-fit ​​groove inside the fixing block is provided with the first spring; the other end of the first spring is provided with the snap-fit ​​ball; the snap-fit ​​ball can snap onto the discharge pipe.

[0012] Preferably, the anti-blocking mechanism includes a rotating bearing, a rotating rod, a connecting rod, and a scraper;

[0013] The rotating bearing is provided inside the side wall of the mixing box; the rotating rod is provided in the direction of the rotating bearing toward the discharge port; the scraper is connected to both sides of the rotating rod through the connecting rod.

[0014] Preferably, one end of the rotating rod is provided with a rotating groove, and a rotating rod can be engaged inside the rotating groove.

[0015] Preferably, the rotating rod includes a rod body and a locking block; the two ends of the head of the rod body are connected to the locking block by a second spring.

[0016] (3) Beneficial effects

[0017] This invention provides a multi-stage compounding and extrusion device for foamed materials, which overcomes the problem that existing extrusion screws are easily damaged due to heat generation during long-term high-speed rotation; and that the discharge port of current foamed materials is prone to blockage during the extrusion process.

[0018] 1. This utility model avoids damage caused by overheating when the feeding rod is rotated at high speed for a long time by setting an internal water-cooled feeding rod.

[0019] 2. By setting an anti-blocking mechanism, this utility model allows the discharge pipe to be cleaned regularly or replaced regularly, thus avoiding the phenomenon that traditional discharge ports are prone to blockage. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of a multi-stage compounding and extrusion device for foamed materials proposed in this utility model;

[0021] Figure 2 This is a schematic diagram of the feeding rod connection in this utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the discharge pipe in this utility model;

[0023] Figure 4 This is a schematic diagram of the internal structure of the rotating rod in this utility model;

[0024] Reference numerals: 1-Mixing box, 2-Feeding rod, 3-Spiral blade, 4-Rotating motor, 5-Inlet, 6-Exhaust pipe, 7-Connecting plate, 8-Water tank, 9-Water pipe, 10-Outlet, 11-Outlet pipe, 12-Connecting piece, 121-Fixing block, 122-Snap-fit ​​groove, 123-First spring, 124-Snap-fit ​​ball, 13-Anti-blocking mechanism, 131-Rotating bearing, 132-Rotating rod, 133-Connecting rod, 134-Scraper, 14-Support leg, 15-Second spring, 16-Rotating rod, 161-Rod body, 162-Snap-fit ​​block. Detailed Implementation

[0025] The present invention will be further described in conjunction with the accompanying drawings and embodiments.

[0026] like Figures 1-4 As shown, the multi-stage mixing and extrusion device for foamed materials described in this utility model includes a mixing box 1, a feeding rod 2, a spiral blade 3, a rotating motor 4, a water tank 8, a water pipe 9, a discharge pipe 11, a connector 12, and an anti-blocking mechanism 13.

[0027] A pair of feeding rods 2 are rotatably mounted inside the mixing box 1; the outer ends of the feeding rods 2 are provided with spiral blades 3; the outer walls on both sides of the mixing box 1 are provided with rotating motors 4 that drive the feeding rods 2 to rotate; the top left side of the mixing box 1 is provided with a feed inlet 5; the top right side of the mixing box 1 is provided with an exhaust pipe 6; the outer side wall of the mixing box 1 is provided with a connecting plate 7; the upper end of the connecting plate 7 is provided with a water tank 8; the inside of the feeding rods 2 is a hollow structure, and the water tank 8 and the inside of the feeding rods 2 are connected by a water pipe 9; the bottom right side of the mixing box 1 is provided with a discharge port 10; the discharge port 10 is connected to the discharge pipe 11 through the connector 12; the discharge pipe 11 is provided with an anti-blocking mechanism 13.

[0028] The bottom of the mixing box 1 is provided with several support legs 14.

[0029] The connector 12 includes a fixing block 121, a snap-fit ​​groove 122, a first spring 123, and a snap-fit ​​ball 124;

[0030] The outer wall of the mixing box 1 is also provided with the fixing block 121, and the fixing block 121 and the discharge pipe 11 are provided with the snap-fit ​​groove 122; the snap-fit ​​groove 122 inside the fixing block 121 is provided with the first spring 123; the other end of the first spring 123 is provided with the snap-fit ​​ball 124; the snap-fit ​​ball 124 can be snapped onto the discharge pipe 11; the snap-fit ​​ball 124 is made of iron.

[0031] The anti-blocking mechanism 13 includes a rotating bearing 131, a rotating rod 132, a connecting rod 133, and a scraper 134;

[0032] The mixing box 1 has a rotating bearing 131 inside its side wall; the rotating bearing 131 has a rotating rod 132 facing the discharge port 10; the rotating rod 132 has scrapers 134 connected to both sides of the scraper 134 by the connecting rod 133.

[0033] One end of the rotating rod 132 is provided with a rotating groove, and a rotating rod 16 can be engaged inside the rotating groove.

[0034] The rotating rod 16 includes a rod body 161 and a locking block 162; the two ends of the head of the rod body 161 are connected to the locking block 162 by a second spring 15.

[0035] Working principle: The powder to be foamed is fed into the mixing box through the inlet. At this time, the rotating motor 4 on the left and right side walls of the mixing box 1 is turned on, so that the rotating motor 4 drives the feeding rod 2 to rotate, thereby mixing the foaming material. The mixed material is discharged through the outlet 10.

[0036] During the mixing process, cooling water from inside the water tank 8 is introduced into the screw through the water pipe 9 to cool the feeding rod 2, preventing the temperature around the feeding rod 2 from becoming too high. The clamping block 1322 is pinched, and then the rod body 1321 is pushed into the rotating groove. Rotation of the rod body 1321 allows the rotating rod 132 to rotate, while the scraper 134 scrapes the inner wall of the discharge pipe 11. Simultaneously, the external magnetite attracts the clamping ball 124, causing it to detach from the clamping groove 122, thus removing the discharge pipe 11 from the fixing block 121, facilitating subsequent cleaning. Content not described in detail in this specification belongs to prior art known to those skilled in the art.

[0037] The embodiments described above are merely preferred embodiments of the present invention, and are described in a relatively specific and detailed manner. However, the present invention is not limited to these embodiments. It should be noted that for those skilled in the art, any improvements made without departing from the spirit of the present invention fall within the protection scope of the present invention. Therefore, the protection scope of this patent should be determined by the appended claims.

Claims

1. A multi-stage compounding and extrusion apparatus for foamed materials, characterized in that, Includes a mixing box (1), a feeding rod (2), a spiral blade (3), a rotating motor (4), a water tank (8), a water pipe (9), a discharge pipe (11), a connector (12), and an anti-blocking mechanism (13); The mixing box (1) is equipped with a pair of feeding rods (2) that are rotatably mounted inside; the outer end of the feeding rods (2) is provided with the spiral blades (3); the outer walls of both sides of the mixing box (1) are provided with the rotating motors (4) that drive the feeding rods (2) to rotate; the top left side of the mixing box (1) is provided with a feed inlet (5); the top right side of the mixing box (1) is provided with an exhaust pipe (6); the outer side wall of the mixing box (1) is provided with a connecting plate (7); the upper end of the connecting plate (7) is provided with a water tank (8); the inside of the feeding rods (2) is a hollow structure, and the water tank (8) and the inside of the feeding rods (2) are connected by the water pipe (9); the bottom right side of the mixing box (1) is provided with a discharge port (10); the discharge port (10) is connected to the discharge pipe (11) through the connector (12); the discharge pipe (11) is provided with the anti-blocking mechanism (13).

2. The multi-stage compounding and extrusion apparatus for foamed materials according to claim 1, characterized in that, The bottom of the mixing box (1) is provided with several support legs (14).

3. The multi-stage compounding and extrusion apparatus for foamed materials according to claim 1, characterized in that, The connector (12) includes a fixing block (121), a snap-fit ​​groove (122), a first spring (123), and a snap-fit ​​ball (124). The outer wall of the mixing box (1) is also provided with the fixing block (121), and the fixing block (121) and the discharge pipe (11) are provided with the snap-fit ​​groove (122); the snap-fit ​​groove (122) inside the fixing block (121) is provided with the first spring (123); the other end of the first spring (123) is provided with the snap-fit ​​ball (124); the snap-fit ​​ball (124) can be snapped onto the discharge pipe (11).

4. A multi-stage compounding and extrusion apparatus for foamed materials according to claim 1, characterized in that, The anti-blocking mechanism (13) includes a rotating bearing (131), a rotating rod (132), a connecting rod (133), and a scraper (134). The mixing box (1) is provided with the rotating bearing (131) inside the side wall; the rotating bearing (131) is provided with the rotating rod (132) facing the discharge port (10); the rotating rod (132) is connected to the scraper (134) on both sides by the connecting rod (133).

5. A multi-stage compounding and extrusion apparatus for foamed materials according to claim 4, characterized in that, One end of the rotating rod (132) is provided with a rotating groove, and a rotating rod (16) can be engaged inside the rotating groove.

6. A multi-stage compounding and extrusion apparatus for foamed materials according to claim 5, characterized in that, The rotating rod (16) includes a rod body (161) and a locking block (162); the two ends of the head of the rod body (161) are connected to the locking block (162) by a second spring (15).

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