Injection molding machine

Abstract

The utility model discloses an injection molding machine which comprises a working table, an injection assembly is arranged on one side of the upper surface of the working table, a discharging tank is arranged at the output end of the injection assembly, and a fixed mold assembly is installed on the upper surface of the working table and located on the left side of the discharging tank. An inner tank is installed in the discharging tank, and a heating pad is arranged at the interval between the discharging tank and the inner tank; a limiting pipe is installed at the output end of the discharging tank in an inserted mode, and a rotating disc is rotationally installed in the limiting pipe. Raw materials fed into the discharging tank are blocked through the arranged inner filter pot, the motor drives the feeding scraping plate to rotate, the feeding scraping plate is attached to the inner wall of the inner filter pot to push out the wet and caked raw materials, and therefore the raw materials become loose and fine, meanwhile, the feeding scraping plate and the rotating shaft are installed in an inserted mode, and after the raw materials leak out of the inner filter pot, the raw materials are conveyed into the discharging tank through the rotating shaft. Further stirring and dispersing are conducted through a stirring rod, a heating pad installed in the discharging tank in an attached mode can heat the raw materials, and the humidity of the raw materials is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of injection molding machines, in particular to an injection molding machine. Background Art

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting plastics. It is divided into vertical, horizontal, and all-electric types. The injection molding machine can heat the plastic and apply high pressure to the molten plastic to make it eject and fill the mold cavity. The injection molding machine needs to complete the feeding work through the hopper.

[0003] According to patent number CN 213353317 U, an injection molding machine hopper is disclosed, including a cone hopper, a barrel and a dryer, the barrel is arranged on the cone hopper, the dryer is connected to the cone hopper, the barrel includes a barrel body, an agitator, a pusher and a drying filter, the barrel body is arranged on the cone hopper and is a hollow cavity structure with a bottom opening, the agitator is arranged on the barrel body, the pusher is arranged on the barrel body and is located below the agitator, the drying filter is arranged on the barrel body and is located at the bottom opening, the pusher includes a support rod, a fixed plate, a movable mesh plate, a scissor frame and an electric push rod, the support rods are arranged on the inner wall of the barrel body at intervals, the fixed plate is arranged between the support rods, the movable mesh plate can be slidably sleeved on the support rod and is arranged in a rectangular structure, the movable mesh plate is located on both sides of the fixed plate, and the scissor frame is symmetrically arranged on the fixed plate and the movable mesh plate. The utility model relates to the field of injection molding machine hopper design, specifically refers to an injection molding machine hopper.

[0004] The existing injection molding machine hoppers usually have simple functions. Some hoppers have added drying functions considering the high humidity of the raw materials. However, in actual operation, uneven drying often occurs, and the stickiness of the raw material particles will also have a certain impact on the quality of subsequent injection molding products. Therefore, an injection molding machine is needed now. Utility Model Content

[0005] The purpose of the utility model is to provide an injection molding machine, which ensures that the raw materials can be filtered for the first time after being put into the feeding tank by setting an internal filter pot to block the relatively wet or agglomerated raw materials, and further stirs and heats the raw materials in the feeding tank by a heating pad to solve the technical problems mentioned in the background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: an injection molding machine, comprising a workbench, an injection assembly is arranged on one side of the upper surface of the workbench, a material discharge tank is arranged at the output end of the injection assembly, a fixed mold assembly is arranged on the upper surface of the workbench at the left side of the material discharge tank, and a demoulding assembly is arranged on the output side of the fixed mold assembly;

[0007] An inner tank is installed inside the feed tank, and a heating pad is provided between the feed tank and the inner tank;

[0008] The output end of the feed tank is plugged and installed with a limit tube, and a rotating disk is rotatably installed inside the limit tube;

[0009] An inner filter pot is mounted in the feed tank, a rotating shaft is rotatably mounted at the center of the inner filter pot, and a stirring rod is fixedly mounted at the bottom of the rotating shaft;

[0010] The top end of the discharge tank is covered with a sealing cover plate, a motor is installed at the center of the upper part of the sealing cover plate, a connecting shaft is key-connected and installed at the output end of the motor, the connecting shaft is plug-connected with the rotating shaft, and a feeding scraper is fixedly installed on the outer side of the connecting shaft.

[0011] Preferably, the discharge tank and the inner tank are not in contact with each other, and the inner and outer arc surfaces of the heating pad are respectively in contact with the discharge tank and the inner tank arc surfaces, and the heating pad is electrically connected to a controller installed, and the controller is installed on the outside of the discharge tank.

[0012] Preferably, a discharge pipe is connected to the bottom end of the discharge tank, a discharge hole is opened through the center of the limiting tube, and a group of connecting pipes are respectively inserted into the discharge holes opened at the upper and lower ends of the limiting tube, and a matching window is opened on one side of the outer arc surface of the limiting tube.

[0013] Preferably, a filter is installed through the center of the rotating disk, and several groups of auxiliary balls are rotatably installed on the upper and lower surfaces of the rotating disk respectively. The outer arc surface of each group of auxiliary balls rotates in contact with the inner wall of the limiting tube, and several groups of external teeth are equidistantly installed on the outer arc surface of the rotating disk, and the external teeth extend from the inside of the mating window.

[0014] Preferably, an injection tube is locked and installed at the bottom of the limiting tube, a positioning plate is sleeved and installed on the outside of the injection tube, a driving seat is installed on the upper surface of the positioning plate, a control gear is key-connected and installed on the conveying end of the driving seat, and a locking cap is threadedly installed on the outer arc surface of the limiting tube at the lower part of the positioning plate.

[0015] Preferably, a plurality of positioning grooves are provided on the upper inner wall of the workbench, a limiting plate is fixedly installed on the outer arc surface of the inner filter pot, the limiting plate is inserted into the positioning groove and installed, and a rotating hole is provided through the center of the inner filter pot.

[0016] Preferably, a bottom plate is fixedly mounted on the outer arc surface of the rotating shaft, the bottom plate is arranged to fit the lower surface of the inner filter pot, and the rotating shaft located inside the inner filter pot is limited by a positioning nut.

[0017] Preferably, a connecting plug is provided at the top end of the rotating shaft, and a connecting plug plate is provided at the bottom end of the connecting shaft, and the connecting plug and the connecting plug plate are plug-connected and installed.

[0018] Preferably, a feed pipe is installed through one side of the sealing cover plate.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] 1. The raw materials put into the discharge tank are blocked by the inner filter pot, and the feeding scraper is driven by the motor to rotate, so that the feeding scraper fits the inner wall of the inner filter pot to push out the relatively wet and agglomerated raw materials, thereby making the raw materials looser and finer. At the same time, the feeding scraper is plugged and installed with the rotating shaft. After the raw materials leak out of the inner filter pot, they are further stirred by the stirring rod, and the heating pad installed in the discharge tank can heat them to further reduce the humidity of the raw materials.

[0021] 2. The rotating disk is driven to rotate by the control gear, and the filter inside the rotating disk is located inside the limit tube and rotates in close proximity to the bottom of the discharge pipe, which can effectively prevent the discharge pipe from being blocked during the discharge process to meet the demand for stable feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the feed tank of the utility model;

[0024] Figure 3 This is a schematic diagram of the overall structure of the feed tank of the utility model;

[0025] Figure 4 This is a schematic diagram of the installation structure of the heating pad of the utility model;

[0026] Figure 5 This is a disassembled diagram of the installation structure of the limit tube of the utility model;

[0027] Figure 6 This is a schematic diagram of the split installation structure of the rotating disk of the utility model;

[0028] Figure 7 This is a schematic diagram of the splitting of the rotating shaft installation structure of the utility model;

[0029] Figure 8 This is a disassembled diagram of the feeding scraper installation structure of the utility model.

[0030] In the figure: 1. workbench; 2. injection assembly; 3. discharge tank; 4. inner tank; 5. heating pad; 6. controller; 7. positioning groove; 8. discharge pipe; 9. limit tube; 10. connecting plug; 11. matching window; 12. rotating disk; 13. filter screen; 14. auxiliary ball; 15. external gear; 16. injection pipe; 17. positioning plate; 18. control gear; 19. locking cap; 20. inner filter pot; 21. limit plate; 22. rotating shaft; 23. bottom plate; 24. positioning nut; 25. stirring rod; 26. connecting plug; 27. sealing cover plate; 28. motor; 29. ​​feed pipe; 30. connecting shaft; 31. connecting plug plate; 32. feeding scraper; 33. fixed mold assembly; 34. demoulding assembly. DETAILED DESCRIPTION

[0031] 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.

[0032] The utility model provides: an injection molding machine, such as Figure 1-Figure 8 As shown, it includes a workbench 1, an injection assembly 2 is arranged on one side of the upper surface of the workbench 1, a feeding tank 3 is arranged at the output end of the injection assembly 2, a fixed mold assembly 33 is installed on the upper surface of the workbench 1 on the left side of the feeding tank 3, and a demoulding assembly 34 is installed on the output side of the fixed mold assembly 33; an inner tank 4 is installed inside the feeding tank 3, and a heating pad 5 is arranged at the interval between the feeding tank 3 and the inner tank 4; a limit tube 9 is plugged and installed at the output end of the feeding tank 3, and a rotating disk 12 is rotatably installed inside the limit tube 9; an inner filter pot 20 is clamped and installed inside the feeding tank 3, a rotating shaft 22 is rotatably installed at the center of the inner filter pot 20, and a stirring rod 25 is fixedly installed at the bottom of the rotating shaft 22; a sealing cover plate 27 is covered on the top end of the feeding tank 3, a motor 28 is installed at the center of the upper part of the sealing cover plate 27, a connecting shaft 30 is key-connected and installed at the output end of the motor 28, the connecting shaft 30 is plugged and installed with the rotating shaft 22, and a feeding scraper 32 is fixedly installed on the outside of the connecting shaft 30.

[0033] Preferably, the discharge tank 3 and the inner tank 4 are not in contact with each other, and the inner and outer arc surfaces of the heating pad 5 are respectively in contact with the arc surfaces of the discharge tank 3 and the inner tank 4. The heating pad 5 is electrically connected and installed with a controller 6, and the controller 6 is installed on the outside of the discharge tank 3. The heating pad 5 is protected by the inner tank 4 to prevent the heating pad 5 from directly contacting the raw materials, and the internal temperature of the heating pad 5 can be flexibly controlled by the controller 6, so that the internal temperature of the heating pad 5 can be heated more efficiently.

[0034] Furthermore, a discharge pipe 8 is installed at the bottom end of the discharge tank 3, a discharge hole is opened through the center of the limiting tube 9, and a group of connecting plugs 10 are respectively inserted into the discharge holes opened at the upper and lower parts of the limiting tube 9, and a matching window 11 is opened on one side of the outer arc surface of the limiting tube 9. The connecting plugs 10 installed at the upper and lower parts of the limiting tube 9 are used to connect the discharge pipe 8 and the injection pipe 16 to ensure that the raw materials can stably pass through the rotating disk 12 installed inside the limiting tube 9, so that the rotating disk 12 can complete the auxiliary discharge work during the rotation process.

[0035] Furthermore, a filter screen 13 is installed through the center of the rotating disk 12, and several groups of auxiliary balls 14 are rotatably installed on the upper and lower surfaces of the rotating disk 12 respectively. The outer arc surface of each group of auxiliary balls 14 fits the inner wall of the limiting tube 9 and rotates. Several groups of external teeth 15 are equidistantly installed on the outer arc surface of the rotating disk 12, and the external teeth 15 extend from the inside of the matching window 11. The filter screen in the center of the rotating disk 12 can further filter the undried raw materials, and the auxiliary balls 14 on the upper and lower surfaces of the rotating disk 12 fit with the inner wall of the limiting tube 9, thereby reducing the friction of the rotating disk 12 and allowing the rotating disk 12 to rotate better. The raw materials blocked at the discharge pipe 8 can be discharged through the rotation of the rotating disk 12, causing the filter screen 13 to rub the blocked raw materials.

[0036] It is worth mentioning that a filling tube 16 is locked and installed at the bottom of the limiting tube 9, and a positioning plate 17 is installed on the outside of the filling tube 16. A driving seat is installed on the upper surface of the positioning plate 17, and a control gear 18 is key-connected and installed at the conveying end of the driving seat. The lower part of the positioning plate 17 is located on the outer arc surface of the limiting tube 9 and a locking cap 19 is threadedly installed on the positioning plate 17 to limit the driving seat, and an electric driver is arranged inside the driving seat to control the control gear 18 to rotate forward and reversely, and the control gear 18 extends into the matching window 11 and is meshed with the outer teeth 15 on the outer arc surface of the rotating disk 12 to ensure the unloading of blocked raw materials.

[0037] Specifically, a plurality of groups of positioning grooves 7 are provided on the upper inner wall of the workbench 1, and a limiting plate 21 is fixedly installed on the outer arc surface of the inner filter pot 20. The limiting plate 21 is inserted into the positioning groove 7 and installed. A rotating hole is provided through the center of the inner filter pot 20. The positioning grooves 7 provided inside the workbench 1 and the limiting plate 21 installed on the outer arc surface of the inner filter pot 20 are engaged with each other, so that the inner filter pot 20 can be stably installed in the positioning grooves 7 without being affected by the rotation of the feeding scraper 32. The feeding scraper 32 can push the material against the inner filter pot 20 during the rotation process, and push the relatively dry and loose raw materials out of the inner filter pot 20.

[0038] In addition, a bottom plate 23 is fixedly installed on the outer arc surface of the rotating shaft 22, and the bottom plate 23 is arranged to fit the lower surface of the inner filter pot 20. The rotating shaft 22 located inside the inner filter pot 20 is limited by a positioning nut 24. The bottom plate 23 at the bottom of the rotating shaft 22 and the positioning nut 24 on the outer arc surface of the rotating shaft 22 cooperate to determine the use position of the rotating shaft 22, but the positioning nut 24 does not press against the inner filter pot 20, so that the positioning nut 24 and the bottom plate 23 are not subjected to force with the inner filter pot 20, and are only for determining the use position of the inner filter pot 20, so as not to affect the rotation of the rotating shaft 22. After the raw materials are sent out from the inner filter pot 20, the stirring rod 25 can further stir the raw materials, and cooperate with the heating of the heating pad 5 to make the heating more uniform.

[0039] Preferably, a connecting plug 26 is provided at the top of the rotating shaft 22, and a connecting plug plate 31 is provided at the bottom of the connecting shaft 30. The connecting plug 26 and the connecting plug plate 31 are plugged together and installed, so that the rotating shaft 22 can be stably plugged with the connecting shaft 30, and the connecting shaft 30 can rotate stably during the process of rotation controlled by the motor 28. Moreover, since the connecting shaft 30 and the rotating shaft 22 are in a plug-in relationship, when the sealing cover plate 27 is opened, they will be in direct contact with the plug-in relationship, and thus will not affect the use of the stirring rod 25.

[0040] In addition, a feed pipe 29 is installed through one side of the sealing cover plate 27. The feed pipe 29 can feed stably, ensure the use requirements of the device, and improve the working efficiency of the injection molding machine.

[0041] 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. An injection molding machine, characterized in that: It comprises a workbench (1), an injection assembly (2) is arranged on one side of the upper surface of the workbench (1), a material discharge tank (3) is arranged at the output end of the injection assembly (2), a fixed mold assembly (33) is installed on the upper surface of the workbench (1) on the left side of the material discharge tank (3), and a demoulding assembly (34) is installed on the output side of the fixed mold assembly (33); An inner tank (4) is installed inside the unloading tank (3), and a heating pad (5) is arranged between the unloading tank (3) and the inner tank (4); The output end of the unloading tank (3) is plugged and installed with a limit tube (9), and a rotating disk (12) is rotatably installed inside the limit tube (9); An inner filter pot (20) is mounted in a clamped manner inside the feed tank (3); a rotating shaft (22) is rotatably mounted at the center of the inner filter pot (20); and a stirring rod (25) is fixedly mounted at the bottom of the rotating shaft (22); The top end of the discharge tank (3) is covered with a sealing cover plate (27), a motor (28) is installed at the center of the upper part of the sealing cover plate (27), a connecting shaft (30) is key-connected and installed at the output end of the motor (28), the connecting shaft (30) is plug-connected and installed with the rotating shaft (22), and a feeding scraper (32) is fixedly installed on the outer side of the connecting shaft (30).

2. An injection molding machine according to claim 1, characterized in that: The unloading tank (3) and the inner tank (4) are not in contact with each other, and the inner and outer arc surfaces of the heating pad (5) are respectively in contact with the arc surfaces of the unloading tank (3) and the inner tank (4). The heating pad (5) is electrically connected and installed with a controller (6), and the controller (6) is installed on the outside of the unloading tank (3).

3. An injection molding machine according to claim 2, characterized in that: The bottom end of the discharge tank (3) is connected to a discharge pipe (8), a discharge hole is provided through the center of the limit tube (9), and a group of connecting plugs (10) are respectively inserted into the discharge holes provided at the top and bottom of the limit tube (9), and a matching window (11) is provided on one side of the outer arc surface of the limit tube (9).

4. An injection molding machine according to claim 3, characterized in that: A filter screen (13) is installed through the center of the rotating disk (12), and a plurality of groups of auxiliary balls (14) are rotatably installed on the upper and lower surfaces of the rotating disk (12), and the outer arc surface of each group of the auxiliary balls (14) is in contact with the inner wall of the limit tube (9) for rotation. A plurality of groups of external teeth (15) are equidistantly installed on the outer arc surface of the rotating disk (12), and the external teeth (15) extend from the inside of the matching window (11).

5. An injection molding machine according to claim 4, characterized in that: The bottom of the limiting tube (9) is locked with an injection tube (16), the outside of the injection tube (16) is sleeved with a positioning plate (17), the upper surface of the positioning plate (17) is mounted with a driving seat, the conveying end of the driving seat is key-connected with a control gear (18), and the lower part of the positioning plate (17) is threadedly mounted with a locking cap (19) on the outer arc surface of the limiting tube (9).

6. An injection molding machine according to claim 5, characterized in that: A plurality of groups of positioning grooves (7) are provided on the upper inner wall of the workbench (1); a limiting plate (21) is fixedly mounted on the outer arc surface of the inner filter pot (20); the limiting plate (21) is inserted into the positioning groove (7) and installed; and a rotation hole is provided through the center of the inner filter pot (20).

7. An injection molding machine according to claim 6, characterized in that: A bottom plate (23) is fixedly mounted on the outer arc surface of the rotating shaft (22), and the bottom plate (23) is arranged in contact with the lower surface of the inner filter pot (20). The rotating shaft (22) located inside the inner filter pot (20) is limited by a positioning nut (24).

8. An injection molding machine according to claim 7, characterized in that: The top end of the rotating shaft (22) is provided with a connecting plug (26), the bottom end of the connecting shaft (30) is provided with a connecting plug plate (31), and the connecting plug (26) and the connecting plug plate (31) are plug-connected and installed.

9. An injection molding machine according to claim 8, characterized in that: A feed pipe (29) is installed through one side of the sealing cover plate (27).

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