Flame-retardant plastic filter tube injection molding machine

Abstract

The utility model discloses a flame-retardant plastic filter tube injection molding machine which comprises a main body structure, the main body structure comprises a syringe, an injection head and a hopper, a valve is installed on the hopper, the bottom of the syringe is supported by a support, the flame-retardant plastic filter tube injection molding machine further comprises a driving mechanism and a stirring mechanism, and the driving mechanism comprises a conveying motor and a conveying auger. The stirring mechanism comprises a stock bin and a stirring motor, the stock bin and the hopper are installed together through fixing screws, a feeding port is formed in the top of the stock bin, one end of an output shaft of the stirring motor is fixedly connected with a rotating shaft through a coupler, the rotating shaft is located in an inner cavity of the stock bin, and a stirring rod is welded to the rotating shaft. The heat preservation mechanism is used for preserving heat of the raw materials. The stirring device is simple in structure and convenient to use, the stirring mechanism is arranged for preventing condensation caused by too low flow speed of raw materials, the raw materials can be kept flowing all the time, and therefore normal production and processing of equipment are guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding equipment, in particular to a flame retardant plastic filter tube injection molding machine. Background Art

[0002] Flame retardant plastic filter pipe is a pipe specially designed to prevent the spread of flames and filter impurities in the fluid. They are usually made of plastic materials with flame retardant properties, such as polyvinyl chloride (PVC), polyethylene (PE) or polytetrafluoroethylene (PTFE), which will not release toxic gases when burned and can extinguish themselves after the fire source is removed.

[0003] Injection molding technology is a widely used plastic molding method. It heats the plastic raw material to a molten state, then injects the melt into a closed mold under high pressure, and obtains a plastic product of the desired shape after cooling and solidification. Flame-retardant plastic filter tubes are often processed by injection molding. After searching, the Chinese patent application number is: CN201510288093.7, which provides an injection device for an injection molding machine. The push rod plate constituting the injection device of the injection molding machine is divided into two, and these two push rod plates (first push rod plate, second push rod plate) can be combined and released with each other by bolts. The first push rod plate is provided for the installation of the injection screw and is supported on the base via a position adjustment mechanism. The second push rod plate is provided for the installation of a drive unit that enables the first push rod plate to move in the front and rear directions, and is supported by a connecting strip that connects the front plate and the rear plate.

[0004] There are still defects in the above technical solution. When the injection molding equipment is actually used, the raw materials are transported to the injection bin through the silo for injection. When the equipment is in use, the raw materials in the silo are prone to solidification due to the slow flow rate, which reduces the working efficiency of the equipment. In addition, when the equipment is shut down for maintenance, the raw materials in the silo are almost stopped and the probability of solidification is greater, making it difficult for the equipment to operate normally after maintenance. Therefore, we need to propose a flame-retardant plastic filter tube injection molding machine. Utility Model Content

[0005] The purpose of the utility model is to provide a flame retardant plastic filter tube injection molding machine. The device has a simple structure and is easy to use. By arranging a stirring mechanism to prevent the raw material from condensing due to a slow flow rate, the raw material can always remain flowing, thereby ensuring the normal production and processing of the equipment to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A flame retardant plastic filter tube injection molding machine comprises a main structure;

[0008] The main structure includes a syringe for raw material injection, an injection head at one end of the syringe, and a hopper connected to the syringe, a valve is installed on the hopper, and the bottom of the syringe is supported by a bracket;

[0009] It includes a driving mechanism for pushing the raw material in the injection barrel;

[0010] The pushing mechanism includes a conveying motor installed on a side wall of the injection barrel and a conveying auger rotatably installed in the inner cavity of the injection barrel, and the conveying auger is driven by the conveying motor;

[0011] including a stirring mechanism for preventing the raw materials from solidifying;

[0012] The stirring mechanism includes a silo for injecting raw materials and a stirring motor installed on the top of the silo, the silo is installed together with the hopper by fixing screws, a feed port is provided on the top of the silo, one end of the output shaft of the stirring motor is fixedly connected to a rotating shaft through a coupling, the rotating shaft is located in the inner cavity of the silo and a stirring rod is welded on the rotating shaft;

[0013] The utility model also comprises a heat preservation mechanism for keeping the raw materials warm.

[0014] Preferably, the heat-insulating mechanism comprises a jacket installed on the outer wall of the silo, and an insulating rod is installed inside the jacket.

[0015] Preferably, a plurality of groups of insulating rods are installed in the jacket at equal distances, and electric heating wires are wound around the insulating rods.

[0016] Preferably, the upper end of the hopper and the lower end of the silo are both provided with a rim, and the rim is provided with screw holes for installing fixing screws.

[0017] Preferably, a slot is provided at the upper edge of the hopper, and a sleeve is integrally formed at the lower edge of the silo, and the sleeve and the slot are matched.

[0018] Preferably, a filter screen plate for filtering impurities in the raw materials is clamped inside the clamping slot, and the bottom of the clamping slot abuts against the filter screen plate.

[0019] Preferably, the stirring rod comprises a main rod and support rods, and the support rods are arranged in a plurality of groups and are evenly distributed on both sides of the main rod.

[0020] Compared with the prior art, the utility model has the following beneficial effects: the device of the utility model has a simple structure and is easy to use. By arranging a stirring mechanism to prevent the raw material from condensing due to a slow flow rate, the raw material can always keep flowing, thereby ensuring the normal production and processing of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1It is a schematic diagram of the structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the syringe barrel of the utility model;

[0023] Figure 3 This is a structural schematic diagram of the silo of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure of the jacket of the utility model;

[0025] Figure 5 It is a structural schematic diagram of the card slot of the utility model.

[0026] In the figure: 1. syringe barrel; 2. injection head; 3. hopper; 4. silo; 5. feed port; 6. conveying motor; 7. conveying auger; 8. valve; 9. stirring motor; 10. rotating shaft; 11. stirring rod; 12. jacket; 13. insulating rod; 14. electric heating wire; 15. surrounding edge; 16. slot; 17. sleeve; 18. filter screen. DETAILED DESCRIPTION

[0027] 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.

[0028] like Figure 1-3 As shown, a flame retardant plastic filter tube injection molding machine comprises a main structure, the main structure comprises an injection barrel 1 for raw material injection, an injection head 2 located at one end of the injection barrel 1, and a hopper 3 connected to the injection barrel 1, a valve 8 is installed on the hopper 3, and the bottom of the injection barrel 1 is supported by a bracket;

[0029] It includes a driving mechanism for pushing the raw material in the injection barrel 1, the pushing mechanism includes a conveying motor 6 installed on a side wall of the injection barrel 1 and a conveying auger 7 rotatably installed in the inner cavity of the injection barrel 1, and the conveying auger 7 is driven by the conveying motor 6;

[0030] It includes a stirring mechanism for preventing the raw materials from solidifying, the stirring mechanism includes a silo 4 for injecting raw materials and a stirring motor 9 installed on the top of the silo 4, the silo 4 is installed together with the hopper 3 by fixing screws, the top of the silo 4 is provided with a feed port 5, one end of the output shaft of the stirring motor 9 is fixedly connected to a rotating shaft 10 through a coupling, the rotating shaft 10 is located in the inner cavity of the silo 4 and a stirring rod 11 is welded on the rotating shaft 10.

[0031] The device of the utility model has a simple structure and is easy to use. By arranging a stirring mechanism to prevent the raw material from condensing due to too slow a flow rate, the raw material can always be kept flowing, thereby ensuring the normal production and processing of the equipment.

[0032] For further information, see Figure 3 The stirring rod 11 includes a main rod and a support rod, and the support rods are evenly distributed in multiple groups on both sides of the main rod. The above design, by providing the stirring rod 11 including the main rod and the support rod, can make the stirring mechanism stir the raw materials more thoroughly and evenly, so that the raw materials have better activity.

[0033] For further information, see Figure 3-4 In order to keep the raw materials in the silo 4 in a molten state at all times, an insulation mechanism for keeping the raw materials warm is also included. The insulation mechanism includes a jacket 12 installed on the outer wall of the silo 4, and insulating rods 13 are installed inside the jacket 12. Several groups of insulating rods 13 are equidistantly installed in the jacket 12, and electric heating wires 14 are wound around the insulating rods 13.

[0034] The above design, by arranging a jacket 12 on the outer wall of the silo 4, installing an insulating rod 13 with an electric heating wire 14 in the jacket 12, the electric heating wire 14 can heat and keep the silo 4 warm when working, thereby avoiding the raw materials from easily condensing, and further improving the reliability of the device when in use.

[0035] For further information, see Figure 5 The upper end of the hopper 3 and the lower end of the silo 4 are both provided with a rim 15, and the rim 15 is provided with screw holes for installing fixing screws. The upper edge of the hopper 3 is provided with a slot 16, and the lower edge of the silo 4 is integrally formed with a sleeve 17, and the sleeve 17 is adapted to the slot 16.

[0036] The above design, by correspondingly arranging the surrounding edge 15 with screw holes at the upper end of the hopper 3 and the lower end of the silo 4, can facilitate the assembly and use and disassembly and cleaning of the hopper 3 and the silo 4. After a single processing is completed, the interior of the silo 4 can be deeply cleaned by dismantling it, so as to facilitate subsequent use;

[0037] A sleeve 17 is provided at the lower end of the silo 4 for inserting into the slot 16 at the upper end of the hopper 3 , which can not only play a positioning role when the hopper 3 and the silo 4 are combined, but also prevent the raw materials from overflowing, and has good sealing performance.

[0038] For further information, see Figure 5When the raw materials are prepared, there may be condensed plastic particles or condensed materials that have not yet reached the molten state. To avoid direct delivery to the mold, the inside of the card slot 16 is connected with a filter screen 18 for filtering impurities in the raw materials, and the bottom of the card slot 16 abuts against the filter screen 18. By arranging the filter screen 18 in the card slot 16 to filter large particles of impurities, it can be ensured that the raw materials delivered to the mold meet the standards, and the quality of the flame-retardant plastic filter tube products is guaranteed.

[0039] During specific use, the sleeve 17 at the bottom of the silo 4 is inserted into the slot 16 at the top of the hopper 3, and the hopper 3 and the silo 4 are installed by fixing screws. After completing the assembly and debugging of the equipment, the equipment is moved to the designated location, the equipment is connected to the power supply, the injection head 2 is connected to the pipeline for injecting into the mold, and the molten raw materials are injected through the feed port 5 at the top of the silo 4. The stirring mechanism can stir the raw materials to keep the raw materials flowing. The insulation mechanism can be started to insulate the raw materials in the silo 4 to prevent them from condensing and cooling. The valve 8 on the hopper 3 is opened to allow the raw materials to enter the injection barrel 1. The driving mechanism can inject the raw materials into the mold through the injection head 2.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations of the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A flame retardant plastic filter tube injection molding machine, characterized in that: The main structure includes a syringe for injecting raw materials, an injection head at one end of the syringe, and a hopper connected to the syringe, a valve is installed on the hopper, and the bottom of the syringe is supported by a bracket; It also includes a driving mechanism for pushing the raw material in the injection barrel, the driving mechanism includes a conveying motor installed on a side wall of the injection barrel and a conveying auger rotatably installed in the inner cavity of the injection barrel, and the conveying auger is driven by the conveying motor; It also includes a stirring mechanism for preventing the raw material from solidifying, the stirring mechanism includes a silo for injecting the raw material and a stirring motor installed on the top of the silo, the silo is installed together with the hopper by fixing screws, the top of the silo is provided with a feed inlet, one end of the output shaft of the stirring motor is fixedly connected to a rotating shaft through a coupling, the rotating shaft is located in the inner cavity of the silo and a stirring rod is welded on the rotating shaft; The utility model also comprises a heat preservation mechanism for keeping the raw materials warm.

2. The flame retardant plastic filter tube injection molding machine according to claim 1, characterized in that: The heat preservation mechanism comprises a jacket installed on the outer wall of the silo, and an insulating rod is installed inside the jacket.

3. The flame retardant plastic filter tube injection molding machine according to claim 2, characterized in that: A plurality of groups of insulating rods are equidistantly installed in the jacket, and electric heating wires are wound around the insulating rods.

4. The flame retardant plastic filter tube injection molding machine according to claim 1, characterized in that: The upper end of the hopper and the lower end of the silo are both provided with a rim, and screw holes for installing fixing screws are opened on the rim.

5. The flame retardant plastic filter tube injection molding machine according to claim 1, characterized in that: A clamping groove is provided on the upper edge of the hopper, and a clamping sleeve is integrally formed on the lower edge of the silo, and the clamping sleeve is matched with the clamping groove.

6. The flame retardant plastic filter tube injection molding machine according to claim 5, characterized in that: A filter screen plate for filtering impurities in the raw materials is clamped inside the clamping slot, and the bottom of the clamping slot abuts against the filter screen plate.

7. The flame retardant plastic filter tube injection molding machine according to claim 1, characterized in that: The stirring rod comprises a main rod and supporting rods, and the supporting rods are arranged in a plurality of groups and are evenly distributed on both sides of the main rod.

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