A foaming agent injection device for producing an insulation board

Abstract

The application discloses a foaming agent injection device for producing thermal insulation board, which comprises a base, a conveying mechanism and an injection assembly. The injection assembly is provided with a first injection pipe, a second injection pipe and a retaining piece. The foaming agent injection device for producing thermal insulation board directly inserts the first injection pipe into the first injection hole and the second injection pipe into the second injection hole, and then only needs to push the retaining rod. The movement of the retaining rod drives the elastic plate to be deformed under stress, so that the elastic plate drives the second injection pipe to be inclined in the second injection hole. The retaining rod is placed in the limiting notch to limit the position, so that the first injection pipe and the second injection pipe can be prevented from moving during injection of raw materials. Meanwhile, since the second injection pipe is kept inclined and inserted, the white material and the black material can be gathered in the air at the same time of injection, the mixing time of the raw materials is shortened, and the pipeline can be quickly disassembled and assembled.

Description

Technical Field

[0001] This invention relates to injection technology, and more particularly to a foaming agent injection device for producing thermal insulation boards. Background Technology

[0002] In the production of thermal insulation boards, foaming agents are used as raw materials. During production, white and black components of the foaming agent are mixed and stirred. After a certain period, a chemical reaction occurs between the white and black components, causing expansion. When injecting the white and black components, pipes are needed to connect them, ensuring stable injection. Therefore, a structure is required that facilitates and maintains stable injection of the raw materials. Summary of the Invention

[0003] To address the shortcomings of the existing technology, this invention proposes a foaming agent injection device for producing thermal insulation boards.

[0004] A foaming agent injection device for producing thermal insulation boards, characterized in that it comprises:

[0005] The base has symmetrically arranged support columns, and a mixing mechanism is provided between the support columns. The mixing mechanism has a mixing cylinder, and a cover plate is provided on the mixing cylinder. A first motor is provided on the cover plate, and a stirring shaft is provided at the lower end of the first motor. A hinge plate is hinged to the cover plate, and a first injection hole and a second injection hole are provided on the hinge plate.

[0006] A conveying mechanism is mounted on the base. The conveying mechanism includes a second motor and a conveying cylinder. The second motor has a conveying shaft, and the conveying shaft has a spiral component. The spiral component is located inside the conveying cylinder, and the conveying cylinder is connected to the lower end of the mixing cylinder.

[0007] And an injection assembly disposed on the hinge plate, wherein the injection assembly is provided with a first injection tube, a second injection tube and a retainer, the first injection tube and the second injection tube are disposed on the retainer, the first injection tube is inserted into the first injection hole and the second injection tube is inserted into the second injection hole, the first injection tube is inserted into the first injection hole in a vertical state and the second injection tube is inserted into the second injection hole in an inclined state;

[0008] The retaining member consists of a bearing plate and an elastic plate. One end of the elastic plate is connected to the middle of the bearing plate. A retaining rod is provided between the elastic plate and the bearing plate. The first injection tube is disposed on the bearing plate and the second injection tube is disposed on the elastic plate. When the retaining rod slides between the elastic plate and the bearing plate, it pushes the elastic plate to deform under force, thereby causing the vertical second injection tube to remain in an inclined state within the second injection hole.

[0009] The center line of the second injection pipe extends downward and intersects with the center line of the first injection pipe, and the materials discharged from the first injection pipe and the second injection pipe are premixed at the intersection of the center lines.

[0010] In the present application, the bearing plate is composed of a first mounting section, a connecting section, and symmetrically arranged first and second support arms, the connecting section is arranged obliquely, the first and second support arms are arranged vertically, and the first support arm and the first support arm and the second support arm and the second support arm form a movable area, and the elastic plate is arranged in the movable area.

[0011] In the present application, the first mounting section forms a first mounting hole, the first injection pipe is arranged in the first mounting hole, the lower end of the first mounting section is provided with a first thickened portion, and the first thickened portion is arranged on the hinged plate.

[0012] In the present application, the second support arm and the second support arm are connected by a bearing arm, the lower end of the bearing arm forms a bearing surface, and the bearing surface is arranged on the hinged plate.

[0013] In the present application, the elastic plate is composed of a sliding section and a second mounting section, the sliding section is arranged obliquely when the second injection pipe is in a vertical state, and the second mounting section is arranged horizontally.

[0014] In the present application, the sliding section is located in the movable area, the sliding section and the first support arm form a clamping area, the elastic plate and the first support arm are connected by an extension section, and the extension section is connected to the sliding section by an arc-shaped section.

[0015] In the present application, the lower end surface of the sliding section and the second mounting section is provided with a second thickened portion, and the diameter of the second thickened portion is greater than the inner diameter of the second injection hole.

[0016] In the present application, the second mounting section is provided with a contact inclined surface.

[0017] In the present application, the lower end surface of the first support arm is provided with a limiting recess matched with a retaining rod, both ends of the retaining rod are provided with threaded portions, and the threaded portions are provided with nuts.

[0018] The foaming agent injection device for producing thermal insulation boards according to this invention has the following advantages: This foaming agent injection device for producing thermal insulation boards directly inserts a first injection tube into a first injection hole and a second injection tube into a second injection hole. Then, simply pushing the holding rod causes the elastic plate to deform under force, causing the elastic plate to tilt the second injection tube within the second injection hole. Furthermore, placing the holding rod in a limiting recess prevents the first and second injection tubes from moving during material injection. Simultaneously, because the second injection tube is inserted at an angle, it allows the white and black components to converge in the air for pre-mixing during injection, shortening the mixing time and enabling rapid assembly and disassembly of the pipes. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the foaming agent injection device for producing thermal insulation boards according to the present invention.

[0020] Figure 2 for Figure 1 Top view;

[0021] Figure 3 for Figure 2 Cross-sectional view at point AA;

[0022] Figure 4 for Figure 1 Internal structure diagram;

[0023] Figure 5 This is a schematic diagram of the hinge plate and injection assembly structure in this invention;

[0024] Figure 6 for Figure 5 Top view;

[0025] Figure 7 for Figure 6 Cross-sectional view at point BB in the middle;

[0026] Figure 8 for Figure 5 Exploded view;

[0027] Figure 9 for Figure 8 A schematic diagram of the injection component structure in the diagram;

[0028] Figure 10 for Figure 9 Cross-sectional view;

[0029] Figure 11 for Figure 10 Enlarged view of section C in the image;

[0030] Figure 12 This is a force analysis diagram of the injection component structure in this invention.

[0031] In the figure: base 1, mixing mechanism 2, conveying mechanism 3, injection assembly 4, support 5, mixing cylinder 6, cover plate 7, first motor 8, support 9, stirring shaft 10, stirring rod 11, stirring blade 12, hinged plate 13, hinge 14, first injection hole 15, second injection hole 16, second motor 17, conveying cylinder 18, conveying shaft 19, spiral 20, discharge pipe 21, first injection pipe 22, second injection pipe 23, retaining piece 24, bearing plate 25, elastic plate 26, retaining rod 27, first mounting section 28, connecting section 29, first support arm 30, second support arm 31, active area 32, first mounting hole 33, first thickened portion 34, bearing arm 35, bearing surface 36, sliding section 37, second mounting section 38, sliding surface 39, clamping area 40, extension section 41, arc section 42, second thickened portion 43, contact inclined surface 44, limiting recess 45, threaded portion 46, nut 47, second mounting hole 48. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application.

[0033] As Figures 1 to 12 shown, the foaming agent injection device for producing insulation board of the present application comprises a base 1, a mixing mechanism 2, a conveying mechanism 3, and an injection assembly 4. The base 1 is used to bear the mixing mechanism 2 and the conveying mechanism 3, and the mixing mechanism 2 is used to mix black material and white material. The conveying mechanism 3 is used to output the mixed raw material. The black material and the white material are raw materials known to those skilled in the art. The main component of the black material is polymeric MDI (diphenylmethane diisocyanate), which is a brown or yellow viscous liquid. Its function is to react with the hydroxyl group in the white material to generate polyurethane foam, and it is the provider of active groups for the foaming reaction. The main component of the white material is a mixture of polyether polyol, catalyst, etc., which is a light yellow or grass green liquid. Its main function is to provide the required hydroxyl group for the reaction, and to react with the isocyanate group in the black material to form a foam structure, while adjusting the foaming process.

[0034] The base 1 is provided with symmetrically arranged support posts 5, and a mixing mechanism 2 is arranged between the support posts 5. The mixing mechanism 2 is provided with a mixing cylinder 6, and a cover plate 7 is arranged on the mixing cylinder 6. A first motor 8 is arranged on the cover plate 7 through a support 9. A stirring shaft 10 is arranged at the lower end of the first motor 8. A plurality of stirring rods 11 are arranged on the stirring shaft 10, and stirring blades 12 are arranged on the stirring rods 11. A hinged plate 13 is hingedly connected to the cover plate 7 through a hinge 14. The hinged plate 13 is provided with a first injection hole 15 and a second injection hole 16. A fixing buckle (not shown in the figure) can be arranged on the cover plate 7. The fixing buckle can be of the prior art, and thus will not be described in detail here. The fixing buckle is used to fix the cover plate 7 to the mixing cylinder 6, so as to prevent the cover plate 7 from being deviated.

[0035] A conveying mechanism 3 is arranged on the base 1. The conveying mechanism 3 is provided with a second motor 17 and a conveying cylinder 18. A conveying shaft 19 is arranged on the second motor 17. A spiral member 20 is arranged on the conveying shaft 19 and arranged in the interior of the conveying cylinder 18. The conveying cylinder 18 is in communication with the lower end of the mixing cylinder 6. The black material and the white material are mixed and stirred through the mixing mechanism 2, and then output through the spiral member 20. A discharge pipe 21 is arranged at the lower end of the conveying cylinder 18, and used to discharge the mixed raw materials.

[0036] As shown in FIG. 1, Figure 3 the injection assembly 4 is arranged on the hinged plate 13 and away from the stirring shaft 10. The materials in the first injection pipe 22 and the second injection pipe 23 can be kept for a period of time for preliminary reaction, and then flow to the position of the stirring shaft 10. Figure 1 and Figure 2 the injection assembly 4 is not shown, but only the positions of the first injection hole 15 and the second injection hole 16 are shown. Since the attached Figure 3 is a sectional view, it is beneficial to show the injection assembly 4. Therefore, the position of the injection assembly 4 is shown in the attached Figure 3 , so as to facilitate observation that the injection assembly 4 is arranged at the end away from the stirring shaft 10 and a certain distance exists between the injection assembly 4 and the stirring shaft 10.

[0037] The injection assembly 4 is arranged on the hinged plate 13. The injection assembly 4 is provided with the first injection pipe 22, the second injection pipe 23, and a retaining member 24. The first injection pipe 22 and the second injection pipe 23 are arranged on the hinged plate 13 through the retaining member 24. The first injection pipe 22 and the second injection pipe 23 are arranged on the retaining member 24. The first injection pipe 22 is inserted into the first injection hole 15, and the second injection pipe 23 is inserted into the second injection hole 16. The first injection pipe 22 is inserted into the first injection hole 15 in a vertical state, and the second injection pipe 23 is inserted into the second injection hole 16 in an inclined state. The inner diameter of the second injection hole 16 is greater than the outer diameter of the second injection pipe 23.

[0038] The holder 24 is composed of a bearing plate 25 and an elastic plate 26, one end of the elastic plate 26 is connected to the middle of the bearing plate 25, a holding rod 27 is arranged between the elastic plate 26 and the bearing plate 25, the first injection pipe 22 is arranged on the bearing plate 25, the second injection pipe 23 is arranged on the elastic plate 26, the holding rod 27 pushes the elastic plate 26 to deform when the elastic plate 26 and the bearing plate 25 slide, and drives the second injection pipe 23 in the vertical state to keep in the inclined state in the second injection hole 16.

[0039] As shown in Figure 7 the center line N of the second injection pipe 23 extends downward to intersect the center line M of the first injection pipe 22, so that the material injected from the second injection pipe 23 can be pre-mixed with the material injected from the first injection pipe 22 in the air, thereby accelerating the mixing efficiency and shortening the stirring time. That is, the material in the first injection pipe 22 and the material in the second injection pipe 23 are mixed in contact in the air when being injected, and the position of the injection assembly 4 can be kept fixed by the inclined second injection pipe 23, so that the first injection pipe 22, the second injection pipe 23 and the holder 24 are fixed to the hinged plate 13. That is, when the second injection pipe 23 is in the inclined state, the position of the holder 24, the first injection pipe 22 and the second injection pipe 23 is limited by the second injection pipe 23 in the inclined state.

[0040] The bearing plate 25 is composed of a first mounting section 28, a connecting section 29 and symmetrically arranged first and second support arms 30 and 31, the connecting section 29 is arranged in an inclined manner, the first and second support arms 30 and 31 are arranged vertically, the first support arm 30 is arranged horizontally, and the second support arm 31 is arranged vertically, so that the first and second support arms 30 and 31 are kept in a vertical state. An active area 32 is formed between the first support arm 30 and the first support arm 30, and between the second support arm 31 and the second support arm 31. The elastic plate 26 is arranged in the active area 32, and the holding rod 27 pushes the elastic plate 26 to deform under stress in the active area 32. The second mounting section 38 is provided with a second mounting hole 48 matched with the second injection pipe 23.

[0041] The first mounting section 28 is provided with a first mounting hole 33, and the first injection pipe 22 is arranged in the first mounting hole 33. The lower end of the first mounting section 28 is provided with a first thickened portion 34, and the first thickened portion 34 is arranged on the hinged plate 13. The outer diameter of the first thickened portion 34 is larger than the inner diameter of the first mounting hole 33, so that the first thickened portion 34 cannot be arranged in the first mounting hole 33, thereby keeping the position of the first thickened portion 34 supporting the first mounting section 28, and keeping the first mounting section 28 in a fixed state, that is, keeping the position of the first injection pipe 22 fixed.

[0042] The second support arm 31 and the second support arm 31 are connected by the bearing arm 35, and the lower end of the bearing arm 35 forms the bearing surface 36, which is placed on the hinged plate 13. At the same time, since the other end of the bearing plate 25 forms the bearing arm 35, the support of the bearing plate 25 can be achieved through the bearing arm 35, and at the same time, the bearing plate 25 can also be kept elastically buffered, so that when the first injection pipe 22 injects the material, the reverse force generated by the first injection pipe 22 can be pushed out, so that it can be buffered by the bearing plate 25.

[0043] The elastic plate 26 is composed of a sliding section 37 and a second mounting section 38. When the second injection pipe 23 is in a vertical state, the sliding section 37 is arranged obliquely, and the second mounting section 38 is arranged horizontally. The sliding section 37 is provided with a sliding surface 39, and the retaining rod 27 slides on the sliding surface 39. The sliding section 37 is located in the active area 32, and the sliding section 37 and the first support arm 30 form a clamping area 40. The elastic plate 26 and the first support arm 30 are connected through an extension section 41, and the extension section 41 is connected with the sliding section 37 through an arc section 42. The size of the clamping area 40 changes with the sliding of the retaining rod 27, as shown in Figure 12 When the retaining rod 27 is pushed to reset, it slides in the direction of F1, so that the elastic plate 26 can be reset through the arc section 42, and the elastic plate 26 rotates around the direction of F2.

[0044] The lower end surface of the sliding section 37 and the second mounting section 38 is provided with a second thickening part 43, and the diameter of the second thickening part 43 is greater than the inner diameter of the second injection hole 16, so that the second thickening part 43 cannot enter the second injection hole 16, thereby keeping the position of the second injection pipe 23.

[0045] The second mounting section 38 is provided with a contact inclined surface 44, which can keep the second mounting section 38 in contact with the hinged plate 13 when it is in an inclined state, and cooperates with the second thickening part 43 to limit the position of the elastic plate 26, that is, to limit the position of the second injection pipe 23.

[0046] The lower end surface of the first support arm 30 is provided with a limiting recess 45 matched with the retaining rod 27, and the two ends of the retaining rod 27 are provided with threaded parts 46, and the threaded parts 46 are provided with nuts 47. When the retaining rod 27 is pushed, the retaining rod 27 can slide in the clamping area 40, so that the retaining rod 27 gradually pushes the sliding section 37, so that the arc section 42 is subjected to external force, and the arc section 42 is deformed under force, so that the elastic plate 26 rotates in the direction close to the bearing arm 35.

[0047] When the second injection pipe 23 is installed in an inclined state, the material injected in the second injection pipe 23 is pre-mixed with the material injected in the first injection pipe 22 in the air, and then flows into the mixing drum 6, and is stirred by the stirring shaft 10. Since the materials in the first injection pipe 22 and the second injection pipe 23 are pre-mixed in the air, the stirring time of the stirring shaft 10 can be shortened, which is beneficial to reduce the stirring time and accelerate the mixing efficiency of the materials.

[0048] In addition, the second injection pipe 23 arranged in an inclined state limits the position of the second injection pipe 23, so that the second injection pipe 23 cannot be separated from the second injection hole 16, thereby improving the stability of the installation of the first injection pipe 22 and the second injection pipe 23 on the hinged plate 13. The position of the first injection pipe 22 and the second injection pipe 23 is not affected by the recoil force generated by the material sprayed when the materials are injected. The first injection pipe 22 is separated from the first injection hole 15, and the second injection pipe 23 is separated from the second injection hole 16. That is, when the position of the second injection pipe 23 is limited, the center line of the second injection pipe 23 arranged in an inclined state does not coincide with the center line of the second injection hole 16, and maintains a crossing state therebetween, thereby offsetting the recoil force generated when the materials are sprayed from the first injection pipe 22 and the second injection pipe 23. The first injection pipe 22 and the second injection pipe 23 are not separated from the first injection hole 15 and the second injection hole 16, which is beneficial to the stable injection of the materials.

[0049] In addition, the second injection pipe 23 arranged in an inclined state limits the position of the second injection pipe 23, so that the second injection pipe 23 cannot be separated from the second injection hole 16, thereby improving the stability of the installation of the first injection pipe 22 and the second injection pipe 23 on the hinged plate 13. The position of the first injection pipe 22 and the second injection pipe 23 is not affected by the recoil force generated by the material sprayed when the materials are injected. The first injection pipe 22 is separated from the first injection hole 15, and the second injection pipe 23 is separated from the second injection hole 16. That is, when the position of the second injection pipe 23 is limited, the center line of the second injection pipe 23 arranged in an inclined state does not coincide with the center line of the second injection hole 16, and maintains a crossing state therebetween, thereby offsetting the recoil force generated when the materials are sprayed from the first injection pipe 22 and the second injection pipe 23. The first injection pipe 22 and the second injection pipe 23 are not separated from the first injection hole 15 and the second injection hole 16, which is beneficial to the stable injection of the materials.

[0050] The second injection pipe 23 in the inclined state can keep the sprayed material in contact with the sprayed material of the first injection pipe 22 in the air to realize premixing, and can also make the center line of the second injection pipe 23 in the inclined state not coincide with the center line of the second injection hole 16 to form a cross state, thereby limiting the positions of the first injection pipe 22 and the second injection pipe 23, improving the stability of the first injection pipe 22 and the second injection pipe 23 after installation, and offsetting the recoil force caused by the sprayed material. When the pushing retaining rod 27 is pushed to move in the direction of the second injection pipe 23, not only can the second injection pipe 23 be kept from changing from the vertical state to the inclined state to realize premixing when the material is sprayed, but also the elastic plate 26 on the retaining piece 24 can be deformed under stress to drive the second thickened part 43 to reach the upper end of the second injection hole 16 to realize the plugging of the second injection hole 16.

[0051] The above only describes the preferred embodiments of the present application and is not used to limit the present application. Any modification, equivalent replacement and improvement within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A foaming agent injection device for producing an insulation board, characterized by, The utility model relates to a mixing device for mixing materials, comprising: a base, which is provided with symmetrically arranged support posts, a mixing mechanism arranged in the middle of the support posts, a mixing cylinder arranged in the mixing mechanism, a cover plate arranged on the mixing cylinder, a first motor arranged on the cover plate, a stirring shaft arranged at the lower end of the first motor, a hinged plate hingedly connected to the cover plate, and a first injection hole and a second injection hole arranged on the hinged plate; a conveying mechanism arranged on the base, which is provided with a second motor and a conveying cylinder, a conveying shaft arranged on the second motor, a spiral member arranged on the conveying shaft, and the spiral member arranged in the interior of the conveying cylinder, and the conveying cylinder in communication with the lower end of the mixing cylinder; and an injection assembly arranged on the hinged plate, which is provided with a first injection pipe, a second injection pipe, and a retaining member, the first injection pipe and the second injection pipe arranged on the retaining member, the first injection pipe inserted into the first injection hole, the second injection pipe inserted into the second injection hole, the first injection pipe inserted into the first injection hole in a vertical state, and the second injection pipe inserted into the second injection hole in an inclined state; wherein the retaining member is composed of a bearing plate and an elastic plate, one end of the elastic plate connected to the middle of the bearing plate, a retaining rod arranged between the elastic plate and the bearing plate, the first injection pipe arranged on the bearing plate, the second injection pipe arranged on the elastic plate, and the retaining rod sliding between the elastic plate and the bearing plate to push the elastic plate to deform under stress and drive the second injection pipe in the vertical state to maintain the inclined state in the second injection hole; the center line of the second injection pipe extended downward to intersect with the center line of the first injection pipe, and the materials discharged from the first injection pipe and the second injection pipe pre-mixed at the intersection of the center lines, the bearing plate composed of a first mounting section, a connecting section, and symmetrically arranged first and second support arms, the connecting section arranged in an inclined manner, the first and second support arms arranged perpendicularly, the first support arm and the second support arm forming a movable area between them, and the elastic plate arranged in the movable area, a first mounting hole formed in the first mounting section, the first injection pipe arranged in the first mounting hole, a first thickened portion arranged at the lower end of the first mounting section, and the first thickened portion arranged on the hinged plate, the second support arm and the second support arm connected through a bearing arm, a bearing surface formed at the lower end of the bearing arm, and the bearing surface arranged on the hinged plate, the elastic plate composed of a sliding section and a second mounting section, the sliding section arranged in an inclined manner when the second injection pipe is in a vertical state, and the second mounting section arranged in a horizontal manner.

2. The foaming agent injection device for producing an insulation board according to claim 1, wherein the sliding section located in the movable area, a clamping area formed between the sliding section and the first support arm, the elastic plate and the first support arm connected through an extension section, and the extension section connected to the sliding section through an arc-shaped section.

3. The foaming agent injection device for producing an insulation board according to claim 2, wherein a second thickened portion arranged on the lower end surface of the sliding section and the second mounting section, and the diameter of the second thickened portion greater than the inner diameter of the second injection hole.

4. The foaming agent injection device for producing an insulation board according to claim 3, wherein a contact inclined surface arranged on the second mounting section.

5. The foaming agent injection device for producing an insulation board according to claim 4, wherein The lower end surface of the first supporting arm is provided with a limiting recess matched with the holding rod, both ends of the holding rod are provided with threaded parts, and the threaded parts are provided with nuts.

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