Polyurethane foaming stirring device

Abstract

The utility model discloses a polyurethane foaming stirring device which comprises a feeding assembly, the feeding assembly comprises a stirring bin, an open hole is formed in the top of the stirring bin, a feeding pipe is installed at the open hole, a connecting frame is installed at the bottom end of the feeding pipe, a driving motor is arranged on the outer wall of one side of the connecting frame, and the output end of the driving motor is connected with a fixing shaft. One end of the fixing shaft rotatably penetrates through the connecting frame, a baffle is installed at one end of the fixing shaft and matched with the feeding pipe, scale marks are formed in one side of the feeding pipe, a supporting frame is arranged on the outer wall of the top of the stirring bin, a hydraulic lifting rod is arranged on the outer wall of the top of the supporting frame, and the telescopic end of the bottom of the hydraulic lifting rod slidably penetrates through the supporting frame; a piston piece is installed at the end of the hydraulic lifting rod and matched with the feeding pipe, a stirring assembly used for stirring and mixing and a discharging assembly used for discharging are arranged on one side of the stirring bin, the stirring assembly comprises a speed regulating motor, and the speed regulating motor is fixed to the outer wall of the top of the stirring bin.

Description

Technical Field

[0001] This utility model relates to the field of polyurethane foaming and mixing technology, and in particular to a polyurethane foaming and mixing device. Background Technology

[0002] Polyurethane foaming is a process in which polyurethane prepolymer, foaming agent, catalyst and other components are mixed to generate gas inside and expand in volume. During polyurethane processing, foaming and stirring are required. Polyurethane foaming and stirring is a crucial step in the polyurethane production process, as it directly affects the performance and quality of the foam.

[0003] A search revealed Chinese patent application number 202420008870.2, which discloses a polyurethane foaming mixing device, including a mixing assembly. The mixing assembly includes a mixing tank, on the upper surface of which a first motor is mounted. The output end of the first motor passes through the upper surface of the mixing tank and is fixedly connected to a first drive shaft. A pair of stirring rods are provided on the upper side of the outer wall of the first drive shaft. The polyurethane foaming mixing device in the aforementioned patent has the following drawback: It lacks a quantitative material addition device during use, making it impossible to accurately add materials. This can lead to incorrect material proportions during addition, affecting the foaming effect. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a polyurethane foaming and mixing device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A polyurethane foaming mixing device includes a feeding assembly. The feeding assembly includes a mixing chamber with an opening at the top. A feeding pipe is installed at the opening, and a connecting frame is installed at the bottom of the feeding pipe. A drive motor is installed on one side of the connecting frame, and a fixed shaft is connected to the output end of the drive motor. One end of the fixed shaft is rotatably inserted through the connecting frame, and a baffle is installed at the other end of the fixed shaft. The baffle is adapted to the feeding pipe. A scale line is provided on one side of the feeding pipe. A support frame is provided on the top outer wall of the mixing chamber, and a hydraulic lifting rod is provided on the top outer wall of the support frame. The telescopic end of the hydraulic lifting rod is slidably inserted through the support frame, and a piston plate is installed at the end of the hydraulic lifting rod. The piston plate is adapted to the feeding pipe. A mixing assembly for mixing and a discharging assembly for discharging are provided on one side of the mixing chamber.

[0007] As a further embodiment of this utility model: the stirring assembly includes a speed-regulating motor, which is fixed to the top outer wall of the stirring chamber. A drive shaft is connected to the bottom of the speed-regulating motor, and one end of the drive shaft is rotatably connected to the inside of the stirring chamber. Several sets of stirring blades are arranged sequentially on the drive shaft.

[0008] As a further embodiment of this utility model: the discharge assembly includes a discharge port, which is connected to the bottom of the mixing chamber, and a control valve is installed at one end of the discharge port, the control valve being adapted to the discharge port.

[0009] As a further improvement of this utility model: a cutting blade is installed at one end of the drive shaft, and several groups of cutting blades are arranged in sequence.

[0010] As a further improvement of this utility model: a scraper is installed at one end of the drive shaft, and the size of the scraper is adapted to the mixing chamber.

[0011] As a further improvement of this utility model: a cooling chamber is provided on the outer wall of the mixing chamber, and two sets of connecting pipes are connected to one side of the cooling chamber.

[0012] As a further improvement of this utility model: the bottom outer wall of the mixing chamber is fixed with a support leg by bolts, and a rubber foot pad is installed at the bottom of the support leg.

[0013] As a further improvement of this utility model: a connecting flange is installed at the end of the connecting pipe of the cooling chamber, and the connecting flange has a groove through which a rubber gasket is installed.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. The feeding pipe can be closed by rotating the baffle. Raw materials can be added through the closed feeding pipe. The amount of raw materials added can be observed through the transparent feeding pipe with scale lines. Raw materials can be added or reduced as needed. After confirming the amount of raw materials, the baffle is opened to complete the quantitative addition of raw materials. The piston plate is lowered by the hydraulic lifting rod to scrape the raw materials adhering to the inner wall of the feeding pipe and let them enter the mixing chamber. The quantitative addition of raw materials can avoid the residue of raw materials when adding them, thus effectively avoiding the situation where the proportion of raw materials is incorrect and affects the foaming effect.

[0016] 2. The scraper is in close contact with the inner wall of the mixing chamber. During mixing, the drive shaft can drive the scraper to rotate synchronously. The scraper can scrape off the raw materials attached to the inner wall of the mixing chamber by contacting and rotating, thus facilitating comprehensive and efficient mixing.

[0017] 3. The mixing chamber is cooled down by injecting water into the cooling chamber, thus avoiding overheating. Two sets of connecting pipes facilitate water supply and drainage, making water replacement more convenient. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the polyurethane foaming and stirring device proposed in this utility model from a frontal perspective.

[0019] Figure 2 This is a schematic diagram of the structure of the support part of a polyurethane foaming and mixing device proposed in this utility model.

[0020] Figure 3 This is a schematic diagram of the stirring part of a polyurethane foaming mixing device proposed in this utility model.

[0021] Figure 4 This is a schematic diagram of the feeding section of a polyurethane foaming and mixing device proposed in this utility model.

[0022] In the diagram: 1-mixing chamber, 2-cooling chamber, 3-support leg, 4-foot pad, 5-discharge port, 6-control valve, 7-connecting flange, 8-speed regulating motor, 9-hydraulic lifting rod, 10-piston plate, 11-support frame, 12-feeding pipe, 13-baffle, 14-cutting blade, 15-scraper, 16-mixing blade, 17-drive shaft, 18-drive motor, 19-fixed shaft, 20-connecting frame. Detailed Implementation

[0023] The technical solution of this utility model will be further described in detail below with reference to specific embodiments.

[0024] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0025] Example 1

[0026] A polyurethane foam mixing device, such as Figure 1-4 As shown, the system includes a feeding assembly, which includes a mixing chamber 1. The top of the mixing chamber 1 has an opening, and a feeding pipe 12 is installed at the opening. A connecting frame 20 is installed at the bottom of the feeding pipe 12. A drive motor 18 is fixed to one side of the outer wall of the connecting frame 20 by bolts. The output end of the drive motor 18 is connected to a fixed shaft 19. One end of the fixed shaft 19 is rotatably inserted through the connecting frame 20. A baffle 13 is installed at one end of the fixed shaft 19. The baffle 13 is adapted to the feeding pipe 12. A scale line is opened on one side of the feeding pipe 12. A support frame 11 is fixed to the top outer wall of the mixing chamber 1 by bolts. A hydraulic lifting rod 9 is fixed to the top outer wall of the support frame 11 by bolts. The telescopic end of the bottom of the hydraulic lifting rod 9 is slidably inserted through the support frame 11. A piston plate 10 is installed at the end of the hydraulic lifting rod 9. The piston plate 10 is adapted to the feeding pipe 12. A mixing assembly for mixing and a discharging assembly for discharging are provided on one side of the mixing chamber 1.

[0027] In use, the feeding tube 12 is made of transparent material. During mixing, raw materials can be added into the feeding tube 12, which then feeds them into the mixing chamber 1. After the raw materials are added into the feeding tube 12, the baffle 13 prevents them from directly entering the mixing chamber 1. The amount of raw materials can be observed through the transparent feeding tube 12 and its graduated lines. Raw materials can be removed or added to the feeding tube 12 as needed. After adjusting to the required amount, the fixed shaft can be controlled by the drive motor 18. 19 and baffle 13 rotate, and the baffle 13 rotates to release the seal on the bottom of the feeding pipe 12, so that the raw material can be added into the mixing chamber 1. The piston plate 10 is controlled to descend by the hydraulic lifting rod 9, so that the piston plate 10 can enter the feeding pipe 12. As the piston plate 10 adheres to the inner wall of the feeding pipe 12 and continues to descend, the raw material attached to the inner wall of the feeding pipe 12 can be scraped off and put into the mixing chamber 1. The raw material can be added quantitatively and the residue of the raw material can be avoided when adding the raw material, thus effectively avoiding the situation of incorrect raw material ratio that affects the foaming effect.

[0028] The stirring assembly includes a speed-regulating motor 8, which is fixed to the top outer wall of the stirring chamber 1 by bolts. The bottom of the speed-regulating motor 8 is connected to a drive shaft 17, one end of which is rotatably connected to the stirring chamber 1. Several sets of stirring blades 16 are arranged sequentially on the drive shaft 17.

[0029] When in use, after various raw materials are quantitatively added into the mixing chamber 1, the transmission shaft 17 and the stirring blade 16 can be rotated by starting the speed-regulating motor 8. The rotation of the stirring blade 16 can fully stir the raw materials in the mixing chamber 1, thereby completing the foaming and stirring of polyurethane. The design of multiple sets of stirring blades 16 can increase the stirring efficiency.

[0030] The discharge assembly includes a discharge port 5, which is connected to the bottom of the mixing chamber 1. A control valve 6 is installed at one end of the discharge port 5, and the control valve 6 is adapted to the discharge port 5.

[0031] When in use, after mixing is complete, the polyurethane in the mixing chamber 1 can be discharged from the discharge port 5 by opening the control valve 6 for collection, so as to facilitate subsequent use.

[0032] To increase the efficiency of foaming and mixing, such as Figure 3 As shown, a cutting blade 14 is installed at one end of the drive shaft 17, and several groups of cutting blades 14 are arranged in sequence.

[0033] When in use, the cutting blade 14 can rotate synchronously when the drive shaft 17 rotates. The raw materials added to the mixing chamber 1 can be cut by the rotation of the cutting blade 14, and the raw materials can be processed into small pieces, thereby effectively increasing the efficiency of foaming and mixing.

[0034] In order to scrape off the raw materials adhering to the inner wall, such as Figure 3 As shown, a scraper 15 is installed at one end of the drive shaft 17, and the size of the scraper 15 is adapted to the mixing chamber 1.

[0035] When in use, the scraper 15 is in contact with the inner wall of the mixing chamber 1. During mixing, the scraper 15 can be driven to rotate synchronously through the drive shaft 17. The scraper 15 can scrape off the raw materials attached to the inner wall of the mixing chamber 1 by rotating in contact with the inner wall, thereby facilitating comprehensive and efficient mixing.

[0036] In order to cool down, such as Figure 1 , 2 As shown, a cooling chamber 2 is provided on the outer wall of the mixing chamber 1, and two sets of connecting pipes are connected to one side of the cooling chamber 2;

[0037] During use, the two sets of connecting pipes are located at the upper and lower ends of the cooling chamber 2, respectively. Water can be supplied and pumped through the two sets of connecting pipes. Water can be injected into the cooling chamber 2 first to cool the mixing chamber 1 and prevent the mixing chamber 1 from overheating. After the water in the cooling chamber 2 heats up, it can be pumped out through one set of connecting pipes and water can be added again to continuously cool the mixing chamber 1.

[0038] To support the device, such as Figure 2 As shown, the bottom outer wall of the mixing chamber 1 is fixed with a support leg 3 by bolts, and a rubber foot pad 4 is installed at the bottom of the support leg 3;

[0039] During use, the support legs 3 and foot pads 4 work together to support the device and maintain its stability. The rubber foot pads 4 increase the friction with the ground, thus preventing unnecessary sliding displacement of the device.

[0040] Example 2

[0041] To prevent water leakage during water cooling, refer to... Figure 2 A polyurethane foaming and mixing device, in this embodiment, the following improvements are made compared to embodiment 1: a connecting flange 7 is installed at the end of the connecting pipe of the cooling chamber 2, the connecting flange 7 has a groove, and a rubber gasket is installed through the groove.

[0042] When in use, the connection flange 7 can be used to reinforce the connection when connecting the water pipe to the connecting pipe, thereby preventing the connection from breaking and causing water leakage during transportation. The rubber gasket can be used to fill the gaps at the connection, thereby preventing the gaps from causing water leakage.

[0043] The above description is only a preferred embodiment of the present utility model. For parts that do not require creative effort in circuit control, signal control and transmission, please refer to the prior art. However, the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A polyurethane foaming stirring device comprising a feeding assembly, characterized in that, The feeding assembly includes a stirring bin (1), the top of which is provided with an opening, and a feeding pipe (12) is installed at the opening, the bottom end of the feeding pipe (12) is provided with a connecting frame (20), one side of the outer wall of the connecting frame (20) is provided with a driving motor (18), the output end of the driving motor (18) is connected with a fixed shaft (19), one end of the fixed shaft (19) is rotatably arranged through the connecting frame (20), one end of the fixed shaft (19) is provided with a baffle (13), the baffle (13) is matched with the feeding pipe (12), one side of the feeding pipe (12) is provided with a scale line, the top of the outer wall of the stirring bin (1) is provided with a supporting frame (11), the top of the outer wall of the supporting frame (11) is provided with a hydraulic lifting rod (9), the telescopic end of the bottom of the hydraulic lifting rod (9) is slidably arranged through the supporting frame (11), the end of the hydraulic lifting rod (9) is provided with a piston sheet (10), the piston sheet (10) is matched with the feeding pipe (12), one side of the stirring bin (1) is provided with a stirring assembly for stirring and mixing and a discharging assembly for discharging.

2. The polyurethane foaming stirring device according to claim 1, wherein, The stirring assembly includes a speed regulating motor (8), the speed regulating motor (8) is fixed to the top of the outer wall of the stirring bin (1), the bottom of the speed regulating motor (8) is connected with a transmission shaft (17), one end of the transmission shaft (17) is rotatably connected in the stirring bin (1), a plurality of groups of stirring blades (16) are sequentially arranged and installed on the transmission shaft (17).

3. The polyurethane foaming stirring device according to claim 1, wherein, The discharging assembly includes a discharging port (5), the discharging port (5) is connected to the bottom of the stirring bin (1), one end of the discharging port (5) is provided with a control valve (6), the control valve (6) is matched with the discharging port (5).

4. The polyurethane foaming stirring device according to claim 2, wherein, One end of the transmission shaft (17) is provided with a cutting knife (14), and a plurality of groups of cutting knives (14) are sequentially arranged.

5. The polyurethane foaming stirring device according to claim 2, wherein, One end of the transmission shaft (17) is provided with a scraper (15), and the size of the scraper (15) is matched with the stirring bin (1).

6. The polyurethane foaming mixing device according to claim 1, wherein The outer wall of the stirring bin (1) is provided with a cooling bin (2), and two groups of connecting pipes are connected to one side of the cooling bin (2).

7. The polyurethane foaming stirring device according to claim 1, wherein, The bottom of the outer wall of the stirring bin (1) is provided with a supporting leg (3) through bolts, and a rubber foot pad (4) is installed at the bottom end of the supporting leg (3).

8. The polyurethane foaming stirring device according to claim 6, wherein, The end of the connecting pipe of the cooling bin (2) is provided with a connecting flange (7), the connecting flange (7) is provided with a groove, and a rubber gasket is installed in the groove.

Images