Mixing device for polyurethane production

Abstract

The utility model discloses a mixing device for polyurethane production, which comprises a stirring shaft, a box body and a mounting cover, a driving device is arranged on the mounting cover, the driving device is connected with the stirring shaft through a connecting piece, a plurality of mounting grooves are arranged on the arc-shaped outer wall of the stirring shaft, mounting blocks are arranged in the plurality of mounting grooves, and the mounting blocks are arranged in the mounting grooves. An extrusion groove is formed in the outer wall of the mounting block, a positioning rod is arranged in the extrusion groove through an extrusion mechanism, and a plurality of positioning holes which correspond to the positioning rod and are communicated with the mounting groove are formed in the arc-shaped outer wall of the stirring shaft. By arranging the mounting groove, the mounting block, the positioning rod, the positioning hole and the like, the stirring rod can be conveniently disassembled and assembled relative to the stirring shafts, the number of the stirring shafts can be conveniently adjusted according to the quantity of materials, the stirring shaft assembly can be rapidly replaced when damaged, and the use convenience of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of polyurethane production, in particular to a mixing device for polyurethane production. Background Art

[0002] Polyurethane production involves chemical reactions, mixing various raw materials together, and then preparing polyurethane materials through specific process conditions. This process requires strict control of parameters such as temperature, pressure, reaction time, etc. to ensure the quality and performance of the product. In polyurethane production, common raw materials include isocyanates, polyols, additives, etc. These raw materials are mixed in specific proportions and then reacted to produce polyurethane. The production process may also involve process steps such as injection molding, foaming, and coating to obtain polyurethane products with different forms and properties.

[0003] The mixing device used for the above-mentioned polyurethane production relies on a stirring assembly to complete the mixing. The stirring rod on the common stirring assembly is connected to the stirring shaft by a bolt assembly or welding. Both the bolt assembly connection and the welding connection have the disadvantage of inconvenient disassembly and assembly. The former requires the use of wrench-like tools to complete the disassembly and assembly, and the latter requires strong destruction to complete the disassembly. When the height of the material in the box is not high, it is unnecessary to set too many stirring shafts. The stirring shafts connected in the above two ways are not easy to adjust in time. In order to improve it, a mixing device for polyurethane production is proposed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a mixing device for polyurethane production.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A mixing device for polyurethane production, comprising a stirring shaft, a box body and a mounting cover, wherein the mounting cover is provided with a driving device, and the driving device is connected to the stirring shaft through a connecting piece, a plurality of mounting grooves are provided on the arc-shaped outer wall of the stirring shaft, and a mounting block is provided in each of the plurality of mounting grooves, an extrusion groove is provided on the outer wall of the mounting block, a positioning rod is provided in the extrusion groove through an extrusion mechanism, a plurality of positioning holes corresponding to the positioning rod and connected to the mounting groove are provided on the arc-shaped outer wall of the stirring shaft, a stirring rod is installed on the mounting block, a toggle groove is provided on the stirring shaft, a sliding rod is fixedly provided in the toggle groove, two toggle plates are sleeved on the outer wall of the sliding rod through an elastic mechanism, a mounting ring is sleeved on the outside of the stirring shaft, a fixing groove corresponding to the toggle plate is provided on the arc-shaped inner wall of the mounting ring, and a plurality of tilting rods are provided on the outside of the mounting ring.

[0007] More specifically, in the above technical solution, the extrusion mechanism includes an extrusion elastic member arranged in the extrusion groove, and two ends of the extrusion elastic member are elastically connected to the outer wall of the positioning rod and the inner wall of the extrusion groove respectively.

[0008] More specifically, in the above technical solution, the elastic mechanism includes a connecting elastic member sleeved on the outside of the slide rod, and two ends of the connecting elastic member are elastically connected to the outer walls of the two toggle plates respectively.

[0009] More specifically, in the above technical solution, bolts are installed on the installation cover, and fixing holes corresponding to the bolts are provided on the outer wall of the box body.

[0010] More specifically, in the above technical solution, the installation groove and the installation block are both T-shaped in cross-section, and the arc-shaped outer wall of the stirring shaft is provided with a plurality of disassembly and assembly ports that are connected to the installation groove and correspond to the installation block.

[0011] More specifically, in the above technical solution, the plurality of stirring rods in each layer are distributed at equal intervals in the circumferential direction, and the upper and lower stirring rods are distributed at equal intervals.

[0012] Beneficial effects of the utility model:

[0013] 1. By setting up components such as mounting grooves, mounting blocks, positioning rods and positioning holes, the stirring rod can be easily disassembled and assembled relative to the stirring shaft, the number of stirring shafts can be conveniently adjusted according to the amount of materials, and the stirring shaft assembly can be quickly replaced when it is damaged, ensuring the convenience of using the device.

[0014] 2. By providing a mounting ring, a toggle plate, a connecting elastic member and a mounting groove, etc., when the stirring shaft assembly is in the box, the above-mentioned components can be relied on to provide stability, and the stirring shaft and the mounting ring can be conveniently disassembled, thereby improving the convenience of using the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of components such as a stirring shaft and a stirring rod;

[0016] Figure 2 It is a schematic diagram of the vertical section structure of the box body and the installation cover;

[0017] Figure 3 It is a schematic diagram of the structure of the mounting block, stirring rod and other components.

[0018] Figure 4 It is a structural schematic diagram of the toggle plate, the slide rod and the connecting elastic member.

[0019] In the figure: 1 agitator shaft, 2 mounting groove, 3 disassembly opening, 4 mounting block, 5 agitator rod, 6 positioning hole, 7 mounting ring, 8 tilting rod, 9 toggle groove, 10 toggle plate, 11 connecting piece, 12 housing, 13 mounting cover, 14 driving device, 15 bolt, 16 fixing hole, 17 extrusion groove, 18 positioning rod, 19 slide rod, 20 connecting elastic piece. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0023] References to "one embodiment" or "some embodiments" etc. described in the specification of the utility model mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0024] Reference Figure 1-4The present application proposes a mixing device for polyurethane production, including a stirring shaft 1, a box body 12 and a mounting cover 13. The box body 12 and the mounting cover 13 can be connected to form a sealed connection by relying on the existing technology. A temperature adjustment component and a pressure adjustment component can also be set on the box body 12. With the help of the above-mentioned existing technology products, the parameters in the box body 12 can be adjusted. The above-mentioned components are not drawn or described in detail in this scheme. This scheme only improves the stirring component.

[0025] A driving device 14 is provided on the mounting cover 13, and the driving device 14 is connected to the stirring shaft 1 through a connecting piece 11. A plurality of mounting grooves 2 are provided on the arc-shaped outer wall of the stirring shaft 1, and mounting blocks 4 are provided in the plurality of mounting grooves 2. An extrusion groove 17 is provided on the outer wall of the mounting block 4, and a positioning rod 18 is provided in the extrusion groove 17 through an extrusion mechanism. A plurality of positioning holes 6 corresponding to the positioning rod 18 and connected to the mounting groove 2 are provided on the arc-shaped outer wall of the stirring shaft 1, and a stirring rod 5 is installed on the mounting block 4. A toggle groove 9 is provided on the stirring shaft 1, and a slide bar 19 is fixedly provided in the toggle groove 9. Two toggle plates 10 are sleeved on the outer wall of the slide bar 19 through an elastic mechanism. A mounting ring 7 is sleeved on the outside of the stirring shaft 1, and a fixing groove corresponding to the toggle plate 10 is provided on the arc-shaped inner wall of the mounting ring 7. A plurality of tilting rods 8 are provided on the outside of the mounting ring 7, and the tilting rod 8 realizes the stirring of the material on the bottom wall of the box body 12 to avoid accumulation at the bottom without being stirred and mixed, thereby reducing the stirring dead angle of the stirring assembly.

[0026] It should be noted that the elastic member in the present application may be a spring or the like.

[0027] like Figure 3 As shown, in some embodiments, the extrusion mechanism includes an extrusion elastic member disposed in the extrusion groove 17 , and two ends of the extrusion elastic member are elastically connected to the outer wall of the positioning rod 18 and the inner wall of the extrusion groove 17 respectively.

[0028] like Figure 3 As shown, in some embodiments, the extrusion elastic member realizes the extrusion and pushing out of the positioning rod 18 , and can squeeze the positioning rod 18 into the positioning hole 6 to complete the stable installation of the mounting block 4 in the mounting groove 2 .

[0029] like Figure 4 As shown, in some embodiments, the elastic mechanism includes a connecting elastic member 20 sleeved on the outside of the slide rod 19, and the two ends of the connecting elastic member 20 are elastically connected to the outer walls of the two toggle plates 10 respectively. The connecting elastic member 20 realizes the extrusion separation of the toggle plates 10, so that the two toggle plates 10 are horizontally partially inserted through the stirring shaft 1 and enter into the fixed groove on the arc-shaped inner wall of the mounting ring 7.

[0030] like Figure 2As shown, in some embodiments, bolts 15 are installed on the mounting cover 13, and fixing holes 16 corresponding to the bolts 15 are provided on the outer wall of the box body 12, and threads corresponding to the bolts 15 are provided on the inner wall of the fixing holes 16 to ensure the stability of the mounting cover 13 after being installed in the box body 12.

[0031] like Figure 1 As shown, in some embodiments, the installation groove 2 and the installation block 4 are both T-shaped in cross-section, and a plurality of disassembly and assembly ports 3 connected to the installation groove 2 and corresponding to the installation block 4 are provided on the arc-shaped outer wall of the stirring shaft 1.

[0032] When the installation block 4 is moved into the disassembly opening 3 , it can be directly taken out from the installation slot 2 .

[0033] like Figure 1 As shown, in some embodiments, the plurality of stirring rods 5 in each layer are circumferentially evenly spaced, and the upper and lower stirring rods 5 are evenly spaced.

[0034] The same plane is arranged with equal spacing in the circumferential direction and equal spacing in the upper and lower directions to ensure that the stirring rods 5 are evenly distributed, thereby ensuring the uniformity of stirring and mixing.

[0035] When the utility model is used, the driving device 14 can cooperate with the connecting piece 11 to drive the stirring shaft 1 to rotate. The stirring shaft 1 can rotate stably under the support of the mounting ring 7 and cooperate with the multiple stirring rods 5 to achieve stirring and mixing of materials.

[0036] It can be understood that the number of stirring rods 5 can be adjusted according to the depth of the material, and the stirring rods 5 can be easily disassembled relative to the stirring shaft 1, so that the damaged stirring rods 5 can be quickly replaced. Specifically: press the positioning rod 18 in the positioning hole 6 to compress and squeeze the elastic part, and disengage the positioning rod 18 from the positioning hole 6, and then lift the mounting block 4 from top to bottom to move it to the position of the disassembly port 3, and then move the mounting block 4 horizontally to realize the disassembly operation of the stirring rod 5 and other components.

[0037] like Figure 1 As shown, in some embodiments, by moving the two toggle plates 10 in the toggle grooves 9 closer together, the ends of the toggle plates 10 can be disengaged from the fixed grooves on the arc-shaped inner wall of the mounting ring 7, thereby realizing convenient disassembly of the mounting ring 7 and the tilting rod 8 relative to the stirring shaft 1.

[0038] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A mixing device for polyurethane production, comprising a stirring shaft, a box body and a mounting cover, characterized in that: The mounting cover is provided with a driving device, the driving device is connected to the stirring shaft through a connecting piece, a plurality of mounting grooves are provided on the outer wall of the stirring shaft, a plurality of mounting grooves are provided with mounting blocks, a positioning rod is provided on the mounting block, a plurality of positioning holes corresponding to the positioning rods are provided on the outer wall of the stirring shaft, and the mounting grooves are communicated with the positioning holes; The mounting block is also provided with a stirring rod, the stirring shaft is provided with a toggle groove, a slide rod is fixedly provided in the toggle groove, two toggle plates are sleeved on the outer wall of the slide rod through an elastic mechanism, a mounting ring is sleeved on the outside of the stirring shaft, a fixing groove corresponding to the toggle plate is provided on the inner wall of the mounting ring, and a plurality of tilting rods are provided on the outside of the mounting ring.

2. The mixing device for polyurethane production according to claim 1, characterized in that: The mounting block is provided with an extrusion groove, and the positioning rod is arranged in the extrusion groove via an extrusion mechanism.

3. The mixing device for polyurethane production according to claim 2, characterized in that: The extrusion mechanism comprises an extrusion elastic member arranged in the extrusion groove, and two ends of the extrusion elastic member are elastically connected to the outer wall of the positioning rod and the inner wall of the extrusion groove respectively.

4. The mixing device for polyurethane production according to claim 3, characterized in that: The elastic mechanism comprises a connecting elastic member sleeved on the outside of the slide rod, and two ends of the connecting elastic member are respectively connected to the outer walls of the two toggle plates.

5. The mixing device for polyurethane production according to claim 1, characterized in that: Bolts are installed on the installation cover, and fixing holes corresponding to the bolts are provided on the outer wall of the box body.

6. The mixing device for polyurethane production according to claim 1, characterized in that: The cross-sectional views of the mounting groove and the mounting block are both T-shaped, and the outer wall of the stirring shaft is provided with a plurality of disassembly and assembly openings which are connected with the mounting groove and correspond to the mounting block.

7. The mixing device for polyurethane production according to any one of claims 1 to 6, characterized in that: The plurality of stirring rods in each layer are circumferentially distributed at equal intervals, and the upper and lower stirring rods are distributed at equal intervals.

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