Injection device for linear box foaming line

Abstract

The utility model discloses a material injection device for a linear box foaming line, which comprises a material mixing tank, a first magnetic flux valve is fixedly connected to the center of the bottom of the material mixing tank, a metering cylinder is fixedly connected to the bottom of the first magnetic flux valve, an observation port is arranged on the front side of the metering cylinder, a glass graduated scale is fixedly connected in the observation port, and a first magnetic flux valve and a second magnetic flux valve are fixedly connected in the glass graduated scale. A second magnetic flux valve is fixedly connected to the center of the bottom of the metering cylinder, an extrusion cylinder is fixedly connected to the bottom of the second magnetic flux valve, a screw rod is arranged on the inner side of the extrusion cylinder in a matched mode, a clamping sleeve is fixedly connected to the left side of the extrusion cylinder, and an extrusion motor is fixedly connected to the center of the left side of the clamping sleeve; the metering cylinder is arranged to be matched with the glass graduated scale to independently temporarily store foaming liquid and display the remaining amount, quantitative output of the foaming liquid is controlled through the first magnetic flux valve and the second magnetic flux valve, a proper amount of foaming liquid can be conveniently injected according to foaming molds of different sizes, and waste is avoided while the foaming effect of the foaming mold is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of foaming equipment, in particular to an injection device for a linear box foaming line. Background Art

[0002] The insulation layer of the refrigerator is generated by foaming a polymer foaming agent. The insulation foaming agent is poured into the refrigerator interlayer through a filling device. Due to its physical and chemical properties, the liquid foaming agent will expand rapidly within a certain period of time and fill the gaps between the refrigerator compartment, the freezer compartment and the refrigerator shell, thereby blocking the transfer of cold and heat inside and outside the refrigerator. The linear box foaming line is a commonly used refrigerator foaming production line. The linear box foaming line adopts a linear layout, that is, multiple foaming molds are arranged in a row and fixed, the outer clamp of the mold can be raised and lowered, the inner mold is fixed, and the filling equipment moves back and forth for filling. This foaming line is suitable for the production of boxes of different lengths, widths and heights, and has the advantages of compact structure, less environmental pollution, low labor intensity, small footprint, strong functions, high production efficiency, and flexible production of multiple varieties. The existing injection method is to directly pass the stirred and insulated foaming liquid into the foaming mold through the injection pipe. The amount of injection cannot be accurately controlled, and it is easy to have problems with low or high foaming density, resulting in reduced sealing or waste of raw materials, affecting the foaming quality. Utility Model Content

[0003] The utility model aims to solve the shortcomings in the prior art and proposes a material injection device for a linear box foaming line.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a material injection device for a linear box foaming line, comprising a mixing tank, a feeding port is provided on the left side of the top of the mixing tank, a stirring motor is fixedly connected to the center of the top of the mixing tank, a rotating shaft is fixedly connected to the bottom output end of the stirring motor, the bottom end of the rotating shaft extends into the interior of the mixing tank and a stirring rod is fixedly connected thereto, a heating ring plate is provided in the inner wall of the mixing tank, a ring frame is snap-connected to the lower outer side of the mixing tank, a plurality of support rods are cross-symmetrically provided at the bottom of the ring frame, a bottom plate is fixedly connected to the bottom of the support rods, a first magnetic flux valve is fixedly connected to the center of the bottom of the mixing tank, a metering cylinder is fixedly connected to the bottom of the first magnetic flux valve, an observation port is provided on the front side of the metering cylinder, a glass scale is fixedly connected in the observation port, and the metering A second magnetic flux valve is fixedly connected to the bottom center of the barrel, and an extrusion barrel is fixedly connected to the bottom of the second magnetic flux valve. A screw is matched with the inner side of the extrusion barrel, and a ferrule is fixedly connected to the left side of the extrusion barrel. An extrusion motor is fixedly connected to the left center of the ferrule, and the right output end of the extrusion motor extends into the interior of the extrusion barrel and is fixedly connected to the screw. A discharge port is arranged at the right center of the extrusion barrel, and an extension hose is snap-connected to the right side of the discharge port, and an injection head is fixedly connected to the right end of the extension hose, and the injection head is docked with the foaming mold for injection molding. A metering cylinder is provided in conjunction with a glass scale to independently store and display the remaining amount of the foaming liquid, and the quantitative output of the foaming liquid is controlled by the first magnetic flux valve and the second magnetic flux valve, so as to inject an appropriate amount of foaming liquid into foaming molds of different sizes, thereby improving the foaming effect and avoiding waste.

[0005] As a further description of the above technical solution: a dust cover is rotatably engaged on the top outer edge of the feed port to prevent dust from entering the tank body and causing pollution during the mixing process.

[0006] As a further description of the above technical solution: a non-slip pad is provided at the bottom of the base plate to maintain the stability of the overall device.

[0007] As a further description of the above technical solution: the outer sides of the metering cylinder and the extension hose are both provided with a heat-insulating layer to prevent the temperature of the foaming liquid from dropping during the outlet process and affecting the extrusion quality.

[0008] As a further description of the above technical solution: the left side of the injection head is fixedly connected with an insulating sleeve, and the inner side of the insulating sleeve is fixedly connected to the extension hose, which is convenient for manually assisting the injection head to dock with the foaming mold and adjust the docking object.

[0009] As a further description of the above technical solution: a plurality of racks are fixedly connected to the bottom of the extrusion cylinder, and the bottoms of the racks are fixedly connected to the bottom plate to maintain a stable extrusion operation of the extrusion cylinder.

[0010] The utility model has the following beneficial effects:

[0011] In the utility model, a metering cylinder is provided in conjunction with a glass scale to independently temporarily store and display the remaining amount of the foaming liquid, and the quantitative output of the foaming liquid is controlled by the first magnetic flux valve and the second magnetic flux valve, so that an appropriate amount of foaming liquid can be injected according to foaming molds of different sizes, thereby improving the foaming effect and avoiding waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the connection between a mixing tank and a metering cylinder in a material injection device for a linear box foaming line proposed by the utility model;

[0013] Figure 2 This is a schematic diagram of the connection between the metering cylinder and the extrusion cylinder in a material injection device for a linear box foaming line proposed by the utility model;

[0014] Figure 3 This is a schematic diagram of a glass scale in a material injection device for a linear box foaming line proposed by the utility model;

[0015] Figure 4 The utility model is a schematic diagram of an overall injection device for a linear box foaming line.

[0016] Among them, 1. mixing tank; 2. feed port; 3. stirring motor; 4. heating ring plate; 5. ring frame; 6. support rod; 7. bottom plate; 8. first magnetic flux valve; 9. metering cylinder; 10. observation port; 11. glass scale; 12. second magnetic flux valve; 13. extrusion cylinder; 14. screw; 15. ferrule; 16. extrusion motor; 17. discharge port; 18. extension hose; 19. thermal insulation sleeve; 20. injection head; 21. frame rod. DETAILED DESCRIPTION

[0017] 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.

[0018] Reference Figure 1-4, the utility model provides an embodiment: a linear box foaming line injection device, comprising a mixing tank 1, a feeding port 2 is provided on the left side of the top of the mixing tank 1, a stirring motor 3 is fixedly connected to the center of the top of the mixing tank 1, a rotating shaft is fixedly connected to the bottom output end of the stirring motor 3, the bottom end of the rotating shaft extends into the interior of the mixing tank 1 and is fixedly connected to a stirring rod, a heating ring plate 4 is provided in the inner wall of the mixing tank 1, a ring frame 5 is snap-connected to the lower outer side of the mixing tank 1, a plurality of support rods 6 are cross-symmetrically provided at the bottom of the ring frame 5, a bottom plate 7 is fixedly connected to the bottom of the support rod 6, a first magnetic flux valve 8 is fixedly connected to the center of the bottom of the mixing tank 1, a metering cylinder 9 is fixedly connected to the bottom of the first magnetic flux valve 8, an observation port 10 is provided on the front side of the metering cylinder 9, a glass scale 11 is fixedly connected to the observation port 10, a second magnetic flux valve 12 is fixedly connected to the center of the bottom of the metering cylinder 9, and the bottom of the second magnetic flux valve 12 is fixedly connected to An extrusion barrel 13 is connected, and a screw 14 is matched on the inner side of the extrusion barrel 13. A ferrule 15 is fixedly connected to the left side of the extrusion barrel 13, and an extrusion motor 16 is fixedly connected to the left center of the ferrule 15. The right output end of the extrusion motor 16 extends into the interior of the extrusion barrel 13 and is fixedly connected to the screw 14. A discharge port 17 is arranged at the right center of the extrusion barrel 13, and an extension hose 18 is snap-connected to the right side of the discharge port 17, and an injection head 20 is fixedly connected to the right end of the extension hose 18, and the injection head 20 is docked with the foaming mold for injection molding. A dust cover is rotatably snap-connected to the outer edge of the top of the feed port 2, and an anti-slip pad is arranged at the bottom of the bottom plate 7. Insulation layers are arranged on the outer sides of the metering barrel 9 and the extension hose 18, and an insulation sleeve 19 is fixedly connected to the left side of the injection head 20, and the inner side of the insulation sleeve 19 is fixedly connected to the extension hose 18. A plurality of rack rods 21 are fixedly connected to the bottom of the extrusion barrel 13, and the bottom of the rack rod 21 is fixedly connected to the bottom of the bottom plate 7.

[0019] Working principle: In the utility model, the foaming raw material is introduced into the mixing tank 1 from the feed port 2, and is heated and mixed by the stirring rod and the heating ring plate 4. The first magnetic flux valve 8 and the second magnetic flux valve 12 are opened, and the mixed foaming liquid is introduced and filled with the metering cylinder 9 and the extrusion cylinder 13, and then enters the injection head 20 along the extension hose 18 to reach an overflowing state. The injection head 20 is connected to the foaming mold, and the first magnetic flux valve 8 is closed. The extrusion motor 16 drives the screw 14 to extrude the foaming liquid in a straight line. The extrusion amount of the foaming liquid in the metering cylinder 9 can be observed in real time through the glass scale 11. It is convenient and quick, and it is easy to inject an appropriate amount of foaming liquid according to foaming molds of different sizes, thereby improving its foaming effect while avoiding waste.

[0020] 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 material injection device for a linear box foaming line, comprising a mixing tank (1), characterized in that: A feed port (2) is provided on the left side of the top of the mixing tank (1); a stirring motor (3) is fixedly connected to the center of the top of the mixing tank (1); a rotating shaft is fixedly connected to the bottom output end of the stirring motor (3); the bottom end of the rotating shaft extends into the interior of the mixing tank (1) and a stirring rod is fixedly connected thereto; a heating ring plate (4) is provided in the inner wall of the mixing tank (1); a ring frame (5) is snap-connected to the lower outer side of the mixing tank (1); a plurality of support rods (6) are cross-symmetrically provided at the bottom of the ring frame (5); a bottom plate (7) is fixedly connected to the bottom of the support rods (6); A first magnetic flux valve (8) is fixedly connected to the center of the bottom of the mixing tank (1); a metering cylinder (9) is fixedly connected to the bottom of the first magnetic flux valve (8); an observation port (10) is provided on the front side of the metering cylinder (9); a glass scale (11) is fixedly connected inside the observation port (10); and a second magnetic flux valve (12) is fixedly connected to the center of the bottom of the metering cylinder (9); The bottom of the second magnetic flux valve (12) is fixedly connected to an extrusion barrel (13), the inner side of the extrusion barrel (13) is matched with a screw (14), the left side of the extrusion barrel (13) is fixedly connected to a sleeve (15), the left center of the sleeve (15) is fixedly connected to an extrusion motor (16), the right output end of the extrusion motor (16) extends into the interior of the extrusion barrel (13) and is fixedly connected to the screw (14), a discharge port (17) is provided at the right center of the extrusion barrel (13), the right side of the discharge port (17) is snap-connected to an extension hose (18), the right end of the extension hose (18) is fixedly connected to an injection head (20), and the injection head (20) is connected to a foaming mold for injection molding.

2. The injection device for a linear box foaming line according to claim 1, characterized in that: A dust cover is rotatably engaged on the outer edge of the top of the feed port (2).

3. The injection device for a linear box foaming line according to claim 1, characterized in that: The bottom of the base plate (7) is provided with an anti-slip pad surface.

4. The injection device for a linear box foaming line according to claim 1, characterized in that: The outer sides of the metering cylinder (9) and the extension hose (18) are both provided with a heat-insulating layer.

5. The injection device for a linear box foaming line according to claim 1, characterized in that: The left side of the injection head (20) is fixedly connected with a heat insulation sleeve (19), and the inner side of the heat insulation sleeve (19) is fixedly connected with an extension hose (18).

6. The injection device for a linear box foaming line according to claim 1, characterized in that: A plurality of rack rods (21) are fixedly connected to the bottom of the extrusion cylinder (13), and the bottoms of the rack rods (21) are fixedly connected to the bottom plate (7).

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