Quantitative feeding equipment for polyurethane foam processing

Abstract

The utility model relates to polyurethane foam processing equipment technical field especially relates to a kind of polyurethane foam processing is used in quantitative feeding equipment. It includes mounting bracket, the mounting bracket top four corners are evenly provided with support rod, several The top of support rod is provided with loading assembly, the bottom of loading assembly is provided with transparent measuring tube, the mounting bracket bottom is provided with driving assembly, the loading assembly one side is provided with feeding handheld assembly. The utility model controls the stroke of piston head in transparent measuring tube by telescopic cylinder, combines scale mark, realizes the accurate extraction and conveying of raw material, avoids the quality problems such as the uneven density of foam, the inconsistent thickness caused by feeding quantity error, ensures the performance stability and consistency of each batch of products.

Description

Technical Field

[0001] This utility model relates to the technical field of polyurethane foam processing equipment, and in particular to a quantitative feeding device for polyurethane foam processing. Background Technology

[0002] In the processing and production of polyurethane foam, the feeding stage plays a crucial role in product quality and production efficiency. Traditional polyurethane foam feeding methods mostly rely on manual weighing and manual conveying, which is not only inefficient and unable to meet the needs of large-scale production, but also suffers from poor metering accuracy, easily leading to quality defects such as uneven foam density and inconsistent thickness. Utility Model Content

[0003] The purpose of this invention is to provide a quantitative feeding device for polyurethane foam processing to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution, which includes a mounting frame, with support rods provided at the four corners of the top of the mounting frame, a loading assembly provided at the top of several support rods, a transparent metering tube provided at the bottom of the loading assembly, a driving assembly provided at the bottom of the mounting frame, and a feeding handheld assembly provided on one side of the loading assembly.

[0005] As a preferred embodiment of the present invention, the loading assembly includes a storage bucket disposed on top of several support rods, and a first one-way pressure valve is disposed at the bottom of the storage bucket.

[0006] As a preferred embodiment of this utility model, the transparent metering tube is disposed at the bottom of the storage hopper and covers the outside of the first one-way pressure valve nozzle. A sealing sliding sleeve is provided at the bottom of the transparent metering tube, a scale mark is provided on the outer wall of the front of the transparent metering tube, and a second one-way pressure valve nozzle is provided on the upper side of one side of the transparent metering tube.

[0007] As a preferred embodiment of the present invention, the drive assembly includes a telescopic cylinder disposed at the bottom of the mounting bracket, wherein the telescopic rod of the telescopic cylinder passes through a sealing sleeve and is placed inside a transparent metering tube, and a piston head is provided at the top end of the telescopic rod of the telescopic cylinder.

[0008] As a preferred embodiment of this utility model, the feeding handheld assembly includes an outlet tube disposed on one side of the transparent metering tube, the outlet tube being covered outside the second one-way pressure valve nozzle, a flexible tube being disposed on the other side of the outlet tube, and an outlet grip pen being disposed at the other end of the flexible tube.

[0009] As a preferred embodiment of the present invention, a mounting plate is provided on one side of the top of the mounting frame, and the feeding hand-held assembly further includes an air pump provided on the mounting plate. An L-shaped conveying pipe is provided on the output end of the air pump, and a third one-way pressure valve is provided at the end of the L-shaped conveying pipe away from the air pump. The third one-way pressure valve is located inside the outlet pipe.

[0010] Compared with the prior art, the above-mentioned technical solution of this utility model has the following beneficial technical effects:

[0011] This invention controls the stroke of the piston head within the transparent metering tube using a telescopic cylinder, combined with a scale, to achieve precise extraction and delivery of raw materials. This avoids quality problems such as uneven foam density and inconsistent thickness caused by errors in the amount of material fed, ensuring the performance stability and consistency of each batch of products.

[0012] This invention achieves automated control of raw material extraction, conveying, and feeding, reducing manual intervention. Operators only need to set parameters, start the equipment, and perform simple handheld operations to quickly complete the feeding process. Compared with traditional manual metering and feeding, it significantly shortens the production cycle and increases the production capacity per unit time. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the mounting bracket structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the loading assembly structure of this utility model;

[0016] Figure 4 This is a schematic diagram of the transparent measuring tube structure of this utility model;

[0017] Figure 5 This is a schematic diagram of the drive component structure of this utility model;

[0018] Figure 6 This is a schematic diagram of the feeding handheld component of this utility model;

[0019] Figure 7 This is a schematic diagram of the air pump structure of this utility model.

[0020] Reference numerals: Mounting bracket 1, Mounting plate 10, Support rod 11, Loading assembly 2, Storage bucket 20, First one-way pressure valve 21, Transparent metering tube 3, Scale mark 30, Second one-way pressure valve 31, Sealing sleeve 32, Drive assembly 4, Piston head 40, Telescopic cylinder 41, Feeding hand assembly 5, Discharge pipe 50, Hose 51, Discharge pen 52, Air pump 53, L-shaped delivery pipe 54, Third one-way pressure valve 55. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0022] like Figures 1-7 As shown, the present invention proposes a quantitative feeding device for polyurethane foam processing, which mainly consists of a mounting frame 1, support rods 11, a feeding assembly 2, a transparent metering tube 3, a drive assembly 4, and a feeding hand-held assembly 5. The mounting frame 1 serves as the basic load-bearing structure of the device, and four support rods 11 are vertically welded to the four corners of its top to support the feeding assembly 2.

[0023] The loading assembly 2 is located at the top of the support rod 11, and specifically includes a storage bucket 20. A first one-way pressure valve 21 is provided at the center of the bottom of the storage bucket 20. This valve only allows the raw material to flow downwards to prevent backflow.

[0024] The transparent metering tube 3 is cylindrical and is sealed at the bottom of the storage bucket 20, covering the first one-way pressure valve 21 inside. The bottom of the transparent metering tube 3 is provided with a sealing sliding sleeve 32, which is fitted onto the bottom end of the transparent metering tube 3 by a tight fit. This ensures that the telescopic rod of the telescopic cylinder 41 can slide freely and prevents raw material leakage. The outer wall of the front of the transparent metering tube 3 is provided with a scale mark 30, which makes it easy for operators to observe the raw material measurement. A second one-way pressure valve 31 is provided on one side of the transparent metering tube 3 for outputting the measured raw material.

[0025] The drive assembly 4 is installed at the bottom of the mounting frame 1 and is mainly composed of a telescopic cylinder 41. The telescopic cylinder 41 is fixed at the bottom of the mounting frame 1. Its telescopic rod passes vertically upward through the sealing sleeve 32 at the bottom of the transparent metering tube 3 and extends into the tube. The top of the telescopic rod is connected to a piston head 40. The outer diameter of the piston head 40 is matched with the inner diameter of the transparent metering tube 3 to ensure sealed pushing during the telescopic process.

[0026] The feeding handheld assembly 5 is distributed on one side of the transparent metering tube 3. The outlet tube 50 is fixed to the side wall of the transparent metering tube 3 and covers the second one-way pressure valve nozzle 31 inside for receiving the output raw materials. The other side of the outlet tube 50 is connected to the hose 51, and the other end of the hose 51 is connected to the feeding pen 52, which makes it convenient for the operator to hold and control the feeding.

[0027] In addition, a mounting plate 10 is welded to one side of the top of the mounting frame 1. The air pump 53 is mounted on the mounting plate 10. The output end of the air pump 53 is connected to an L-shaped conveying pipe 54. A third one-way pressure valve 55 is provided at the end of the L-shaped conveying pipe 54 away from the air pump 53. The valve is inserted into the outlet pipe 50 to ensure one-way gas input and push the raw material out of the outlet grip 52.

[0028] When in use, firstly, the polyurethane raw materials prepared according to the formula are injected into the equipment through the sealed feeding port at the top of the storage bucket 20. The operator sets the target feeding amount through the human-machine interface according to the fixed amount of the product to be produced. The system automatically converts it into the extension stroke parameters of the telescopic cylinder 41 and completes the initial position calibration of the piston head 40.

[0029] When the feeding command is initiated, the controller drives the telescopic cylinder 41 to move the piston head 40 downwards inside the transparent metering tube 3, creating a negative pressure environment. At this time, the first one-way pressure valve 21 automatically opens due to the internal and external pressure difference, and the raw material flows quickly from the storage bucket 20 into the metering tube. The first one-way pressure valve 21 remains closed due to the non-return structure to prevent the raw material from flowing back. The operator can observe the real-time feeding amount through the transparent window and the scale 30.

[0030] After the raw material is drawn to the set volume, the telescopic cylinder 41 switches to the forward pushing mode, the telescopic rod pushes out, and the piston head 40 pushes the raw material in the metering tube to the second one-way pressure valve 31. The valve opens under pressure, and the raw material is delivered to the outlet pipe 50 and the hose 51.

[0031] Next, the operator holds the discharge pen 52 and aligns it with the processing mold. Then, the air pump 53 is started through the controller. The high-pressure gas generated by the air pump 53 enters the pen through the air guide tube, and a certain amount of raw material is extruded at a constant flow rate. By adjusting the air pressure parameters and air supply time of the air pump 53, the discharge speed and flow rate can be finely adjusted to adapt to different mold filling requirements.

[0032] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. A quantitative feeding device for polyurethane foam processing, comprising a mounting frame (1), wherein support rods (11) are provided at the four corners of the top of the mounting frame (1), characterized in that: A loading assembly (2) is provided on the top of several support rods (11), a transparent metering tube (3) is provided at the bottom of the loading assembly (2), a driving assembly (4) is provided at the bottom of the mounting frame (1), and a feeding hand-held assembly (5) is provided on one side of the loading assembly (2).

2. The quantitative feeding device for polyurethane foam processing according to claim 1, characterized in that: The loading assembly (2) includes a storage bucket (20) disposed on top of several support rods (11), and a first one-way pressure valve (21) is disposed at the bottom of the storage bucket (20).

3. The quantitative feeding device for polyurethane foam processing according to claim 2, characterized in that: The transparent metering tube (3) is located at the bottom of the storage bucket (20) and covers the outside of the first one-way pressure valve (21). A sealing sleeve (32) is provided at the bottom of the transparent metering tube (3). A scale mark (30) is provided on the outer wall of the front of the transparent metering tube (3). A second one-way pressure valve (31) is provided on the upper side of one side of the transparent metering tube (3).

4. The quantitative feeding device for polyurethane foam processing according to claim 3, characterized in that: The drive assembly (4) includes a telescopic cylinder (41) disposed at the bottom of the mounting bracket (1). The telescopic rod of the telescopic cylinder (41) passes through the sealing sleeve (32) and is placed inside the transparent metering tube (3). A piston head (40) is provided at the top of the telescopic rod of the telescopic cylinder (41).

5. The quantitative feeding device for polyurethane foam processing according to claim 3, characterized in that: The feeding handheld assembly (5) includes an outlet pipe (50) disposed on one side of the transparent metering tube (3), the outlet pipe (50) is covered outside the second one-way pressure valve (31), a hose (51) is disposed on the other side of the outlet pipe (50), and a feeding pen (52) is disposed at the other end of the hose (51).

6. The quantitative feeding device for polyurethane foam processing according to claim 5, characterized in that: The mounting bracket (1) is provided with a mounting plate (10) on one side of the top. The feeding hand assembly (5) also includes an air pump (53) provided on the mounting plate (10). An L-shaped conveying pipe (54) is provided on the output end of the air pump (53). A third one-way pressure valve (55) is provided at the end of the L-shaped conveying pipe (54) away from the air pump (53). The third one-way pressure valve (55) is located inside the outlet pipe (50).

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