Quantitative carbon dioxide foaming agent injection device for extruded sheet production

Abstract

The utility model discloses a carbon dioxide foaming agent quantitative injection device for extruded sheet production, which comprises a workbench, the top end of the workbench is fixedly communicated with a blanking pipe, and the outer surface of the blanking pipe is fixedly communicated with a quantitative pipe. The lifting air cylinder is pressed downwards to drive the adjusting plug to slide in the discharging pipe, so that the flow guide groove located in the upper edge of the adjusting plug is communicated with the quantitative pipe, the double-end air cylinder is started to drive the material pumping plug to move, the carbon dioxide foaming agent located in the material storage box is pumped into the quantitative pipe, and quantitative pumping is conducted; then the lifting air cylinder shrinks to drive the adjusting plug to move upwards, so that the flow guide groove located in the lower edge of the adjusting plug is communicated with the quantitative pipe, the double-head air cylinder pushes the material pumping plug to move to push the quantified foaming agent into the reaction pipeline for reaction, quantitative discharging of the foaming agent is achieved, and feeding of the foaming agent is accurately conducted; and the phenomenon that the foaming agent injected into the mixture is too much or too little is effectively avoided, and the quality of the product after the extruded sheet is produced is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of extruded board production, in particular to a carbon dioxide foaming agent quantitative injection device for extruded board production. Background Art

[0002] Extruded board is a new type of building material that is lightweight, high-strength, water-resistant, fire-resistant, heat-insulating and sound-insulating. It is widely used in residential buildings, commercial and industrial buildings, and cold storage warehouses. In the production process, carbon dioxide foaming agent is one of the key materials for making extruded board. It can make materials such as polystyrene resin form a continuous and uniform surface layer and a closed-cell honeycomb structure during the extrusion process, thereby producing good thermal insulation and compression resistance.

[0003] Most of the current carbon dioxide foaming agent injection devices usually inject directly when working, making it impossible to determine the injection amount of carbon dioxide foaming agent in a certain volume of raw materials. When too much is injected, it is easy to cause the bubbles in the extruded board to be too large or unstable, which will affect the overall structure and performance of the board and reduce the quality of the extruded board. Utility Model Content

[0004] The utility model aims to provide a device for quantitatively injecting a carbon dioxide foaming agent for producing an extruded board, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a device for quantitatively injecting a carbon dioxide foaming agent for producing extruded boards, comprising a workbench, the top of the workbench is fixedly connected to a feed pipe, the outer surface of the feed pipe is fixedly connected to a quantitative pipe, the inside of the quantitative pipe is slidably connected to a draw plug, the top of the workbench is fixedly connected to a double-headed cylinder, one of the telescopic ends of the double-headed cylinder is fixedly connected to one side of the draw plug, the top of the feed pipe is fixedly connected to a lifting cylinder, the telescopic end of the lifting cylinder is fixedly connected to a connecting rod, the other end of the connecting rod is fixedly connected to an adjusting plug, the outer surface of the adjusting plug is slidably connected to the inside of the feed pipe, and the outer surface of the adjusting plug is provided with guide grooves at the upper and lower edge positions.

[0006] As a further preferred embodiment of the present technical solution, an adjusting block is fixedly connected to the top of the workbench, a screw is rotatably connected inside the adjusting block, a slider is meshed on the outer surface of the screw, a baffle is fixedly connected to the top of the slider, and a limit plate is fixedly connected to the outer surface of the other telescopic end of the double-headed cylinder, and the baffle and the limit plate are located at the same horizontal position.

[0007] As a further preferred embodiment of the technical solution, limit blocks are fixedly connected on both sides of the slider, limit grooves are provided on both side walls inside the adjustment block, and the outer surfaces of the two limit blocks are slidably connected to the inside of the two limit grooves respectively.

[0008] As a further preferred embodiment of the present technical solution, a scale plate is fixedly connected to one side of the adjustment block, and a pointer is fixedly connected to one side of the baffle.

[0009] As a further preferred embodiment of the present technical solution, the outer surface of the feed pipe is fixedly connected to a feed pipe, the other end of the feed pipe is fixedly connected to a storage box, and the bottom end of the storage box is fixedly connected to the top end of the workbench.

[0010] As a further preferred embodiment of the technical solution, a square through hole is penetrated through one side of the storage box, and a transparent plate is fixedly connected to the inside of the square through hole.

[0011] The utility model provides a device for quantitatively injecting carbon dioxide foaming agent for producing extruded boards, which has the following beneficial effects:

[0012] (1) The utility model drives the regulating plug to slide inside the discharge pipe by pressing down the lifting cylinder, so that the guide groove located on the upper edge of the regulating plug is connected with the metering pipe, and the double-headed cylinder is started to drive the extraction plug to move so that the carbon dioxide foaming agent located inside the storage box is drawn into the metering pipe for quantitative extraction. Then, the lifting cylinder contracts and drives the regulating plug to move upward so that the guide groove located on the lower edge of the regulating plug is connected with the metering pipe. The double-headed cylinder pushes the extraction plug to move and pushes the quantitative foaming agent into the reaction pipe for reaction, thereby realizing quantitative discharge of the foaming agent and accurately feeding the foaming agent, effectively avoiding the phenomenon of too much or too little foaming agent being injected into the mixed material, and improving the quality of the extruded board after production.

[0013] (2) The utility model drives the slider to move by rotating the screw rod, thereby changing the position of the baffle plate, thereby increasing or decreasing the range of motion of the limit plate, thereby controlling the elongation of the telescopic end of the double-headed cylinder, achieving quantitative measurement of the amount of foaming agent required for different needs, and improving the practicality of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure between the feeding pipe and the regulating block of the utility model;

[0016] Figure 3 It is a schematic diagram of the internal structure of the feeding pipe and the quantitative pipe of the utility model;

[0017] Figure 4 It is a schematic diagram of the internal structure of the regulating block of the utility model.

[0018] In the figure: 1. workbench; 2. feeding pipe; 3. metering pipe; 4. extraction plug; 5. double-headed cylinder; 6. lifting cylinder; 7. connecting rod; 8. adjusting plug; 9. guide groove; 10. feeding pipe; 11. storage box; 12. square through hole; 13. transparent plate; 14. adjusting block; 15. screw rod; 16. slider; 17. baffle; 18. limit block; 19. limit groove; 20. scale plate; 21. pointer; 22. limit plate. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] The utility model provides a technical solution: Figure 1-3 As shown, in the present embodiment, a quantitative injection device for a carbon dioxide foaming agent for producing an extruded board comprises a workbench 1, a feed pipe 2 is fixedly connected to the top of the workbench 1, a quantitative pipe 3 is fixedly connected to the outer surface of the feed pipe 2, a pumping plug 4 is slidably connected to the inside of the quantitative pipe 3, a double-headed cylinder 5 is fixedly connected to the top of the workbench 1, one of the telescopic ends of the double-headed cylinder 5 is fixedly connected to one side of the pumping plug 4, a lifting cylinder 6 is fixedly connected to the top of the feed pipe 2, a connecting rod 7 is fixedly connected to the telescopic end of the lifting cylinder 6, an adjusting plug 8 is fixedly connected to the other end of the connecting rod 7, the outer surface of the adjusting plug 8 is slidably connected to the inside of the feed pipe 2, a guide groove 9 is provided on the outer surface of the adjusting plug 8 at the upper and lower edge positions, wherein the feed pipe 2 is provided for guiding the material, and the adjusting plug 8 is provided for controlling the upper and lower ends of the feed pipe 2 to be connected to the quantitative pipe 3.

[0021] like Figure 2 and Figure 4 As shown, an adjusting block 14 is fixedly connected to the top of the workbench 1, a screw rod 15 is rotatably connected inside the adjusting block 14, a slider 16 is meshed on the outer surface of the screw rod 15, a baffle 17 is fixedly connected to the top of the slider 16, and a limit plate 22 is fixedly connected to the outer surface of the other telescopic end of the double-headed cylinder 5, the baffle 17 and the limit plate 22 are located at the same horizontal position, by setting the screw rod 15, the slider 16 can be driven to move, and by setting the baffle 17, the limit plate 22 can be blocked to achieve control of the movable range of the extraction plug 4.

[0022] like Figure 4 As shown, limit blocks 18 are fixedly connected on both sides of the slider 16, and limit grooves 19 are provided on both side walls inside the adjustment block 14. The outer surfaces of the two limit blocks 18 are slidably connected to the inside of the two limit grooves 19 respectively. By setting the limit grooves 19 and the limit blocks 18, the slider 16 can be positioned to prevent skewing.

[0023] like Figure 4As shown, a scale plate 20 is fixedly connected to one side of the adjustment block 14, and a pointer 21 is fixedly connected to one side of the baffle 17. By setting the scale plate 20 and the pointer 21, precise adjustment of the quantitative amount can be achieved.

[0024] like Figure 1 As shown, the outer surface of the feed pipe 2 is fixedly connected to a feed pipe 10, and the other end of the feed pipe 10 is fixedly connected to a storage box 11, and the bottom end of the storage box 11 is fixedly connected to the top of the workbench 1 for storing the foaming agent.

[0025] like Figure 1 As shown, a square through hole 12 is formed through one side of the storage box 11, and a transparent plate 13 is fixedly connected inside the square through hole 12, so that the remaining amount of the foaming agent can be easily observed and timely added.

[0026] The utility model provides a carbon dioxide foaming agent quantitative injection device for extruded board production, and the specific working principle is as follows:

[0027] During the production of extruded plates, the lifting cylinder 6 is pressed downward to drive the regulating plug 8 to slide inside the discharge pipe 2, so that the guide groove 9 located on the upper edge of the regulating plug 8 is connected with the quantitative tube 3, and the double-headed cylinder 5 is started to drive the extraction plug 4 to move so that the carbon dioxide foaming agent located inside the storage box 11 is drawn into the quantitative tube 3 for quantitative extraction. Then, the lifting cylinder 6 contracts and drives the regulating plug 8 to move upward so that the guide groove 9 located at the lower edge of the regulating plug 8 is connected with the quantitative tube 3. The double-headed cylinder 5 pushes the extraction plug 4 to move and pushes the quantitative foaming agent into the reaction pipe for reaction, and quantitatively discharges the foaming agent. When the quantitative amount needs to be changed, the screw rod 15 is rotated to drive the slider 16 to move, change the position of the baffle 17, and thereby increase or decrease the range of motion of the limit plate 22, thereby changing the elongation of the telescopic end of the double-headed cylinder 5, and quantitatively measuring the amount of foaming agent required for different requirements.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for quantitatively injecting carbon dioxide foaming agent for producing extruded boards, comprising a workbench (1), characterized in that: The top of the workbench (1) is fixedly connected to a feeding pipe (2), the outer surface of the feeding pipe (2) is fixedly connected to a quantitative pipe (3), the quantitative pipe (3) is slidably connected to a material extraction plug (4), the top of the workbench (1) is fixedly connected to a double-headed cylinder (5), one of the telescopic ends of the double-headed cylinder (5) is fixedly connected to one side of the material extraction plug (4), the top of the feeding pipe (2) is fixedly connected to a lifting cylinder (6), the telescopic end of the lifting cylinder (6) is fixedly connected to a connecting rod (7), the other end of the connecting rod (7) is fixedly connected to an adjusting plug (8), the outer surface of the adjusting plug (8) is slidably connected to the inside of the feeding pipe (2), and the outer surface of the adjusting plug (8) is provided with guide grooves (9) at the upper edge and the lower edge.

2. A carbon dioxide foaming agent quantitative injection device for extruded board production according to claim 1, characterized in that: The top of the workbench (1) is fixedly connected to an adjusting block (14), the adjusting block (14) is rotatably connected to a screw rod (15) inside, the outer surface of the screw rod (15) is meshed with a slider (16), the top of the slider (16) is fixedly connected to a baffle (17), the outer surface of the other telescopic end of the double-headed cylinder (5) is fixedly connected to a limit plate (22), and the baffle plate (17) and the limit plate (22) are located at the same horizontal position.

3. A carbon dioxide foaming agent quantitative injection device for extruded board production according to claim 2, characterized in that: The slider (16) is fixedly connected to limit blocks (18) on both sides, and the inner side walls of the adjustment block (14) are provided with limit grooves (19), and the outer surfaces of the two limit blocks (18) are respectively slidably connected to the inside of the two limit grooves (19).

4. A carbon dioxide foaming agent quantitative injection device for extruded board production according to claim 3, characterized in that: A scale plate (20) is fixedly connected to one side of the adjustment block (14), and a pointer (21) is fixedly connected to one side of the baffle (17).

5. The device for quantitatively injecting carbon dioxide foaming agent for producing extruded board according to claim 1, characterized in that: The outer surface of the feed pipe (2) is fixedly connected to a feed pipe (10), and the other end of the feed pipe (10) is fixedly connected to a storage box (11), and the bottom end of the storage box (11) is fixedly connected to the top end of the workbench (1).

6. A carbon dioxide foaming agent quantitative injection device for extruded board production according to claim 5, characterized in that: A square through hole (12) is formed through one side of the material storage box (11), and a transparent plate (13) is fixedly connected inside the square through hole (12).

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