Continuous foaming equipment for polyurethane plates

Abstract

The utility model relates to the technical field of polyurethane processing, and discloses polyurethane plate continuous foaming equipment which comprises a mixing tank body, the mixing tank body is in an inverted cone shape, the upper end of the mixing tank body is connected with a feeding hopper, the bottom end of the mixing tank body is connected with a discharging pipe, a motor is fixedly installed in the center of the upper surface of the mixing tank body, and the motor is connected with the discharging pipe. The driving end of the motor extends into the mixing tank body and is fixedly connected with a rotating shaft, and the surface of the rotating shaft is fixedly connected with stirring blades in a spiral shape. The rotating shaft and the stirring blades are arranged, the stirring blades are arranged to be of a big-end-up conical spiral structure, the structure of the stirring blades is closer to the inner shape of the mixing tank body, raw materials in the mixing tank body can be fully stirred, and the situation that part of the raw materials cannot be fully mixed is avoided; the screw pitch of the stirring blades is gradually increased from bottom to top, so that the raw materials accumulated at the bottom of the mixing tank body can be further fully mixed, and the mixing effect is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to polyurethane processing technical field, specifically a kind of polyurethane board continuous foaming equipment. BACKGROUND

[0002] Polyurethane foaming equipment is the special equipment of polyurethane foam plastic pouring foaming, polyurethane foaming equipment can be used for automobile interior, thermal insulation wall spraying, thermal insulation pipeline manufacturing, bicycle and motorcycle saddle sponge processing, and raw materials need to be uniformly mixed by premixing device before polyurethane foaming.

[0003] Chinese patent discloses raw material premixing device of polyurethane high-pressure foaming equipment, and the authorized announcement number is CN218593504U, in the patent technology, by setting motor one, rotating frame, motor two, shaft and helical blade, in the mixing process, motor two drives shaft rotation, and then makes helical blade transport and tumble raw materials upwards, and cooperates motor one and drives it to rotate in mixing tank by rotating frame, can be mixed and mixed to raw materials in all directions. However, the setting has certain drawbacks, rotating frame has certain length in horizontal direction, so that the part of raw materials in vertical direction of rotating frame cannot be effectively mixed and mixed, which affects the subsequent foaming process to some extent.

[0004] Therefore, the person skilled in the art provides a kind of polyurethane board continuous foaming equipment to solve the problems raised in the above background art. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of polyurethane board continuous foaming equipment to solve the problems raised in the above background art.

[0006] To achieve the above object, the utility model provides the following technical scheme:

[0007] A kind of polyurethane board continuous foaming equipment, including mixing tank body, the outside of the mixing tank body is equipped with support, the mixing tank body is inverted conical, the upper end of the mixing tank body is connected with feed hopper, the surface of the feed hopper is provided with feed valve, the bottom end of the mixing tank body is connected with discharge pipe, the surface of the discharge pipe is provided with discharge valve, the upper surface of the mixing tank body is fixedly installed with motor in the middle position, the drive end of the motor extends to the inside of the mixing tank body and is fixed with shaft, the surface of the shaft is helically fixed with stirring vane.

[0008] As a further scheme of the utility model: the stirring vane is the conical helical structure of big down small.

[0009] As a further scheme of the utility model: the pitch of the stirring vane gradually increases from bottom to top.

[0010] As a further scheme of the utility model: the surface of the rotating shaft is fixedly connected with a cross branch, and the tail end of the cross branch is fixedly connected with a scraper.

[0011] As a further scheme of the utility model: the scraper and the inner wall of the mixing tank body are in sliding contact.

[0012] As a further scheme of the utility model: the scraper is in a sectional structure.

[0013] Compared with the prior art, the utility model has the advantages of:

[0014] Through the setting of the rotating shaft and the stirring blade, and the setting of the stirring blade into a conical spiral structure with the upper part being large and the lower part being small, the structure is closer to the internal shape of the mixing tank body, can fully stir the raw materials in the mixing tank body, avoids that part of the raw materials cannot be fully mixed, and the pitch of the stirring blade is set into a gradually increasing state from bottom to top, can further fully mix the raw materials accumulated at the bottom of the mixing tank body, and the scraper is further set, under the action of the scraper, can prevent the raw materials from being attached to the inner wall of the mixing tank body for a long time and cannot be stirred and mixed, thereby guaranteeing the mixing effect. BRIEF DESCRIPTION OF DRAWINGS

[0015] Fig. 1 It is a structural schematic view of a polyurethane board continuous foaming equipment;

[0016] Fig. 2 It is an internal structure schematic view in a polyurethane board continuous foaming equipment.

[0017] In the drawing: 1, mixing tank body;2, support;3, feed hopper;4, feed valve;5, motor;6, discharge pipe;7, discharge valve;8, rotating shaft;9, stirring blade;10, scraper. DETAILED DESCRIPTION

[0018] Please refer to Figs. 1-2 In the utility model embodiment, a polyurethane board continuous foaming equipment, including mixing tank body 1, the outside of mixing tank body 1 is installed with support 2, mixing tank body 1 is inverted conical, the upper end of mixing tank body 1 is connected with feed hopper 3, the surface of feed hopper 3 is provided with feed valve 4, the bottom of mixing tank body 1 is connected with discharge pipe 6, the surface of discharge pipe 6 is provided with discharge valve 7, the upper surface of mixing tank body 1 is fixedly installed with motor 5 in the middle position, the driving end of motor 5 extends to the inside of mixing tank body 1 and is fixedly connected with rotating shaft 8, the surface of rotating shaft 8 is spirally fixedly connected with stirring blade 9.

[0019] Preferably, the stirring blade 9 is a conical spiral structure with the upper part being large and the lower part being small.

[0020] Preferably, the pitch of the stirring blade 9 gradually increases from bottom to top.

[0021] Preferably, the surface of the rotating shaft 8 is fixed with horizontal branches, and the end of the horizontal branches is fixed with the scraper 10.

[0022] Preferably, the scraper 10 and the inner wall of the mixing tank 1 are in sliding contact.

[0023] Preferably, the scraper 10 is in a segmented structure.

[0024] The working principle of the utility model is: when the device is used to mix raw materials, the raw materials can be put into the inside of the mixing tank 1 from the feeding hopper 3 by opening the feeding valve 4, and the rotating shaft 8 and the stirring blade 9 are rotated by starting the motor 5, the raw materials are mixed by the stirring blade 9, the stirring blade 9 adopts the conical spiral structure design of wide top and narrow bottom, which is closer to the shape structure of the mixing tank 1, and the raw materials in the mixing tank 1 can be fully stirred, and in the stirring process, a large amount of raw materials will accumulate at the bottom of the mixing tank 1 under the condition of its own gravity, by setting the pitch of the stirring blade 9 to gradually increase from bottom to top, the raw materials accumulated at the bottom of the mixing tank 1 can be further fully mixed, and under the action of the scraper 10, the raw materials can be prevented from adhering to the inner wall of the mixing tank 1 for a long time and cannot be stirred and mixed, so as to ensure the mixing effect, and finally the mixed materials are discharged from the discharge pipe 6.

[0025] The above is only the preferred specific implementation manner of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the utility model within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A continuous foaming equipment for polyurethane sheets, comprising a mixing tank (1), wherein a support (2) is installed on the outside of the mixing tank (1), characterized in that: The mixing tank (1) is inverted cone shape. The upper end of the mixing tank (1) is connected to a feed hopper (3). The surface of the feed hopper (3) is provided with a feed valve (4). The bottom end of the mixing tank (1) is connected to a discharge pipe (6). The surface of the discharge pipe (6) is provided with a discharge valve (7). A motor (5) is fixedly installed at the center of the upper surface of the mixing tank (1). The drive end of the motor (5) extends into the interior of the mixing tank (1) and is fixedly connected to a rotating shaft (8). The surface of the rotating shaft (8) is spirally fixedly connected to a stirring blade (9). The stirring blade (9) is a conical spiral structure with a larger upper part and a smaller lower part. The pitch of the stirring blade (9) gradually increases from bottom to top.

2. The continuous foaming equipment for polyurethane sheets according to claim 1, characterized in that: A horizontal branch is fixed to the surface of the rotating shaft (8), and a scraper (10) is fixed to the end of the horizontal branch.

3. The continuous foaming equipment for polyurethane sheets according to claim 2, characterized in that: The scraper (10) and the inner wall of the mixing tank (1) are in sliding contact.

4. The continuous foaming equipment for polyurethane sheets according to claim 2, characterized in that: The scraper (10) is a segmented structure.

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