Injection molding device for acrylic prop

Abstract

The utility model discloses an injection molding device for acrylic props, which relates to the technical field of acrylic injection molding and comprises a control box, an extruder is mounted in the control box, a first heating jacket is mounted on the extruder, and a discharge end of the extruder penetrates through the control box and is positioned outside the control box. The control box is further provided with a driving assembly used for driving the extruder. The acrylic particle stirring device is reasonable in design structure, the stirring assembly is arranged in the material tank and comprises the rotating shaft, the dispersing rods, the stirring shaft and the stirring blades, acrylic particles can be fully stirred, heating uniformity of materials on the inner layer and the outer layer of the material tank is guaranteed, and the stirring efficiency is improved. The problem of poor drying effect caused by uneven heating in a traditional storage type heating mode is avoided, so that the softening effect and the drying efficiency of the acrylic particles are improved, and the defects of bubbles, gas marks and the like caused by residual water are reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to acrylic injection molding technical field, concretely is a kind of acrylic props's injection molding device. BACKGROUND

[0002] Acrylic is a kind of transparent, light and durable plastic material, is widely used in advertising, display, decoration, handicrafts and other fields, and acrylic props usually refers to various props or ornaments made of acrylic (organic glass, PMMA) material, in film and television, stage performance, acrylic material is often used to make light and durable props.

[0003] In the Chinese patent with publication number CN219191167U, an acrylic prop injection molding device is disclosed, which heats the low-temperature heating pipe to a temperature range of 80-90℃. The temperature can soften and dry the acrylic, reducing the moisture content inside the acrylic, ensuring that the melt does not form bubbles, air lines, and reduce transparency during injection molding, ensuring that the finished acrylic props do not have the above defects, and improving the yield

[0004] The above scheme uses a double-section heating method to reduce the moisture content inside the acrylic to reduce bubbles. However, only by storing the acrylic particles for softening and drying, it is easy to cause uneven heating and poor drying effect. In addition, the hot-melt acrylic may also cause slag inclusion and poor transparency when entering the threaded extruder due to large temperature difference. Therefore, we provide an acrylic prop injection molding device to solve the above problems. SUMMARY

[0005] I) Technical problems solved

[0006] The purpose of the utility model is to make up for the shortcomings of the prior art, and provide an acrylic prop injection molding device.

[0007] II) Technical solutions

[0008] To achieve the above purpose, the utility model provides the following technical solutions: an acrylic prop injection molding device, comprising:

[0009] A control box is provided with an extruder, a first heating jacket is installed on the extruder, and the discharge end of the extruder penetrates through the control box and is located outside the control box. A drive assembly is also provided on the control box for driving the extruder.

[0010] The material tank is fixedly connected with a feeding pipe, a suction assembly is detachably installed on the feeding pipe, a stirring assembly for stirring the material in the material tank is arranged on the material tank, the bottom end of the material tank is conical and located in a control box, a third heating jacket is installed on the conical part of the material tank, and a discharging pipe is fixedly connected to the bottom end of the material tank and the extruder.

[0011] Further, the driving assembly comprises a first motor installed on the control box and a driving shaft rotatably connected to the extruder, and the output rotating shaft of the first motor is in transmission connection with the driving shaft through a belt and a belt pulley.

[0012] Further, the extruder is fixedly connected with two supporting seats, and the supporting seats are fixedly connected in the control box.

[0013] Further, the suction assembly comprises an air pipe joint screw-connected to the feeding pipe, and an air suction pipe is fixedly connected to the air pipe joint and in communication with an air suction machine.

[0014] Further, the stirring assembly comprises a second motor installed on the material tank, an output rotating shaft of the second motor penetrates through the material tank and is installed with a rotating shaft, and a dispersing rod is fixedly connected to the rotating shaft.

[0015] Further, a connecting plate is fixedly connected to the rotating shaft, a stirring shaft is rotatably connected to the connecting plate, an inner gear ring is fixedly connected to the inner wall of the material tank, a gear is fixedly connected to one end of the stirring shaft and engaged with the inner gear ring, and stirring blades are fixedly connected to the other end of the stirring shaft.

[0016] Further, an electromagnetic valve is installed on the discharging pipe.

[0017] III) Beneficial effects:

[0018] Compared with the prior art, the injection molding device for the acrylic prop has the following beneficial effects:

[0019] Firstly, the stirring assembly arranged in the material tank, including the rotating shaft, the dispersing rod, the stirring shaft and the stirring blades, can fully stir the acrylic particles, ensure the uniformity of the heating of the inner layer and the outer layer of the material in the material tank, avoid the poor drying effect caused by uneven heating in the traditional storage heating mode, thereby improving the softening effect and the drying efficiency of the acrylic particles and reducing the defects such as bubbles and air lines caused by residual moisture.

[0020] The utility model discloses a first heating jacket is installed to extruder, and the third heating jacket is set up at the bottom of the material jar, can carry out heat preservation heating to acrylic melt, avoids the problem such as slag inclusion, poor transparency caused by too big temperature difference in the conveying process, adopts the design of multiple heating jacket, ensures that acrylic melt keeps stable temperature when entering extruder, thereby improve the transparency and overall quality of acrylic prop after injection molding. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the perspective view of the utility model;

[0022] Figure 2 It is the sectional view of the utility model;

[0023] Figure 3 It is the utility model Figure 2 The enlarged schematic view of structure in A place.

[0024] In the drawing: 1, control box;2, material jar;3, feeding pipe;4, gas pipe joint;5, air extraction pipe;6, blanking pipe;7, electromagnetic valve;8, extruder;9, support seat;10, drive shaft;11, first heating jacket;12, first motor;13, second motor;14, rotating shaft;15, connecting plate;16, inner tooth ring;17, stirring shaft;18, gear;19, stirring blade;20, second heating jacket;21, dispersion rod;22, third heating jacket. DETAILED DESCRIPTION

[0025] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor fall within the protection scope of the utility model.

[0026] As Figures 1-3 The utility model provides a kind of technical scheme: a kind of acrylic prop injection molding device, including control box 1 and material jar 2.

[0027] Extruder 8 is installed in control box 1, and extruder 8 is existing structure, not detailed in the present application, basic principle is that threaded rod rotates in extruder 8 to carry out extrusion delivery to acrylic melt, and two support seats 9 are fixedly connected on extruder 8, and support seat 9 is fixedly connected in control box 1, and extruder 8 is supported using support seat 9.

[0028] The extruder 8 is provided with a first heating jacket 11, which can heat the extruder 8 to avoid the temperature drop of the material in the extruder 8. The discharge end of the extruder 8 penetrates the control box 1 and is located outside the control box 1.

[0029] In the embodiment, the control box 1 is further provided with a driving assembly for driving the extruder 8. The driving assembly comprises a first motor 12 mounted on the control box 1 and a driving shaft 10 rotatably connected to the extruder 8. The output shaft of the first motor 12 is in transmission connection with the driving shaft 10 through a belt and a belt pulley. The driving shaft 10 is driven to rotate by the output shaft of the first motor 12 to provide driving force for the driving shaft 10.

[0030] The material tank 2 is fixedly connected with a feeding pipe 3. The feeding pipe 3 is used to add the acrylic particles into the material tank 2. The feeding pipe 3 is detachably provided with an air extraction assembly. The air extraction assembly comprises an air pipe joint 4 which is threadedly connected to the feeding pipe 3. The air pipe joint 4 is fixedly connected with an air extraction pipe 5. The air extraction pipe 5 is in communication with an air extractor. When the material is not added into the material tank 2, the air extraction pipe 5 is connected to the feeding pipe 3 through the air pipe joint 4. The gas generated during the drying and softening of the acrylic particles is collected outside through the air extraction pipe 5.

[0031] The material tank 2 is provided with a stirring assembly for stirring the material in the material tank 2. The stirring assembly comprises a second motor 13 mounted on the material tank 2. The output shaft of the second motor 13 penetrates the material tank 2 and is provided with a rotating shaft 14. The rotating shaft 14 is fixedly connected with a dispersion rod 21. The dispersion rod 21 on the rotating shaft 14 is driven to rotate by the output shaft of the second motor 13 to stir the acrylic particles in the material tank 2.

[0032] The rotating shaft 14 is fixedly connected with a connecting plate 15. The connecting plate 15 is rotatably connected with a stirring shaft 17. The inner wall of the material tank 2 is fixedly connected with an inner gear ring 16. One end of the stirring shaft 17 is fixedly connected with a gear 18. The gear 18 is in engagement with the inner gear ring 16. The other end of the stirring shaft 17 is fixedly connected with a stirring blade 19.

[0033] When the rotating shaft 14 rotates, the connecting plate 15 drives the stirring shaft 17 to rotate. Under the engagement of the gear 18 and the inner gear ring 16, the stirring shaft 17 rotates in a circular motion. The stirring blade 19 stirs the material to ensure the uniformity of the heating of the inner layer material and the outer layer material in the material tank 2.

[0034] The bottom end of the material tank 2 is conical and located in the control box 1, the conical part of the material tank 2 is provided with a third heating jacket 22, the bottom end of the material tank 2 is fixedly communicated with a discharging pipe 6, the discharging pipe 6 is fixedly communicated with an extruder 8, an electromagnetic valve 7 is installed on the discharging pipe 6, the PMMA at the bottom end of the material tank 2 is high-temperature melted through the third heating jacket 22, and the PMMA melt is transported into the extruder 8 through the discharging pipe 6, and the flow state of the discharging pipe 6 can be adjusted through the electromagnetic valve 7.

[0035] The first heating jacket 11, the second heating jacket 20 and the third heating jacket 22 can all adopt the resistance wire heating mode to provide heat.

[0036] It should be noted that, in this article, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance, in addition, unless otherwise explicitly specified and limited, the terms "fixedly arranged", "arranged", "connected", "connected" should be understood in a broad sense, for example, "arranged" can be fixedly connected, or can be detachably connected, or integrally connected; "connected" can be mechanical connection, or electrical connection; "connected" can be directly connected, or indirectly connected through an intermediate medium, or the communication between two elements. For ordinary skilled persons in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances.

[0037] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An injection molding apparatus for acrylic props, characterized by, The utility model relates to a kind of extrusion machine, including: Control box (1), extruder (8) is installed in the control box (1), first heating jacket (11) is installed on the extruder (8), the discharge end of the extruder (8) penetrates control box (1) and is located outside control box (1), and drive assembly for driving extruder (8) is further provided on control box (1); Tank (2), the feeding pipe (3) is fixedly connected on the tank (2), and the air extraction assembly is detachably installed on the feeding pipe (3), the stirring assembly for stirring material in the tank (2) is provided on the tank (2), the bottom end of the tank (2) is conical, and is located in control box (1), the third heating jacket (22) is installed on the conical part of the tank (2), and the discharge pipe (6) is fixedly connected on the bottom end of the tank (2), and the discharge pipe (6) is fixedly connected on the extruder (8).

2. The injection molding device for acrylic props of claim 1, wherein: The drive assembly includes a first motor (12) mounted on the control box (1) and a drive shaft (10) rotatably connected to the extruder (8), and the output shaft of the first motor (12) is drivingly connected to the drive shaft (10) by a belt and a belt pulley.

3. The injection molding device for acrylic props of claim 1, wherein: The extruder (8) is fixedly connected with two support seats (9), and the support seats (9) are fixedly connected in the control box (1).

4. The injection molding device for acrylic props of claim 1, wherein: The air extraction assembly includes an air pipe joint (4) screwedly connected to the feeding pipe (3), the air pipe joint (4) is fixedly connected with an air extraction pipe (5), and the air extraction pipe (5) is connected with an air extractor.

5. The injection molding device for acrylic props of claim 1, wherein: The stirring assembly includes a second motor (13) mounted on the tank (2), the output shaft of the second motor (13) penetrates the tank (2) and is mounted with a rotating shaft (14), and the rotating shaft (14) is fixedly connected with a dispersion rod (21).

6. The injection molding device for acrylic props of claim 5, wherein: The rotating shaft (14) is fixedly connected with a connecting plate (15), the connecting plate (15) is rotatably connected with a stirring shaft (17), the inner wall of the tank (2) is fixedly connected with an internal gear ring (16), one end of the stirring shaft (17) is fixedly connected with a gear (18), and the gear (18) is engaged with the internal gear ring (16), the other end of the stirring shaft (17) is fixedly connected with a stirring blade (19).

7. The injection molding device for acrylic props of claim 1, wherein: The discharge pipe (6) is provided with a solenoid valve (7).

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