CN221809548U - Automatic feeding high-speed injection molding machine - Google Patents

Abstract

The utility model discloses an automatic feeding high-speed injection molding machine, which relates to the technical field of injection molding and comprises a base, wherein an injection cylinder is arranged on the base, a liquefaction bin is arranged on the injection cylinder, a heating component is arranged on the injection cylinder, a storage box is arranged on the liquefaction bin, a feeding mechanism for automatically conveying raw materials into the storage box is arranged on the storage box, a rotating mechanism is arranged on the feeding mechanism, a feeding barrel is arranged on the feeding mechanism, and a mounting frame is arranged on the feeding barrel.

Description

Automatic feeding high-speed injection molding machine

Technical Field

The utility model relates to the technical field of injection molding, in particular to an automatic feeding high-speed injection molding machine.

Background Art

Injection molding is a method for producing industrial products. Products usually use rubber injection molding and plastic injection molding. Injection molding can also be divided into injection molding and die casting. The injection molding machine is the main molding equipment that uses plastic molding molds to make plastic products of various shapes from thermoplastics or thermosetting materials. Injection molding is achieved through injection molding machines and molds. The Chinese patent announcement number CN102320113B discloses an injection molding method and an injection molding device, including: a barrel; a screw that is rotatable and can move forward and backward inside the barrel; a screw drive mechanism that allows the screw to rotate and move forward and backward inside the barrel; and a heating mechanism for heating the barrel. The heating device, the injection molding device is configured to be freely movable on the guide rail, and the injection molding device is controlled by the injection molding control unit that operates together with the mold control unit 54 described later, melts the molding material in the cylinder, and injects the molten molding material into the cavity of the mold clamped by the clamping device through a nozzle arranged at the front end. It has the advantage of fixing the mold opening amount in the slight mold opening state even when the mold clamping position in the clamping state is changed due to temperature changes, etc., thereby being able to produce a molding with stable quality through injection molding with a slight mold opening state.

In the prior art, the principle of open mold injection molding is to add the crystals of the injection raw material into the barrel at the top of the injection molding machine, melt them at high temperature in the melting chamber, and then rotate and push the screw to inject the molten plastic into the mold through the injection port at the head of the injection tube, cool and mold, and take them out. This feeding method has poor maneuverability and cannot screen the plastic particles. When the particle size of the input plastic raw material is large or not uniform, it affects the molding quality, and at this time it is necessary to add masterbatch to adjust the ingredients, but the proportion of this process is not easy to control. For this reason, an automatic feeding high-speed injection molding machine is proposed.

Summary of the invention

The purpose of the utility model is to solve the problem that the principle of open mold injection molding is to add the crystals of the injection raw material into the barrel at the top of the injection molding machine, melt them at high temperature in the melting bin, and then inject the molten plastic into the mold through the injection port of the injection tube head through the rotation and pushing of the screw, and then cool and mold them out. This feeding method has poor maneuverability and cannot screen the plastic particles. When the particle size of the input plastic raw material is large or not uniform, it affects the molding quality, and at this time it is necessary to add masterbatch to adjust the components, but the proportion of this process is not easy to control. The utility model provides an automatic feeding high-speed injection molding machine.

In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

An automatic feeding high-speed injection molding machine comprises a base, a syringe is mounted on the base, a liquefaction bin is mounted on the syringe, a heating assembly is mounted on the syringe, and the machine is characterized in that: a storage box is mounted on the liquefaction bin, a feeding mechanism for automatically conveying raw materials to the storage box is mounted on the storage box, a rotating mechanism is mounted on the feeding mechanism, a feeding barrel is mounted on the feeding mechanism, a mounting frame is mounted on the feeding barrel, an alarm mechanism for reminding to add raw materials is mounted on the mounting frame, a compensation mechanism for reducing the generation of bubbles in the melted raw materials is mounted on the syringe, a screening mechanism for screening raw material particles with large particle sizes is mounted on the storage box, and a movable mechanism for taking out raw materials with excessively large particle sizes is mounted on the screening mechanism. When the injection molding process is carried out by the injection molding machine, , put the raw materials into the feeding barrel, and the plastic granule raw materials are automatically transported to the storage box through the feeding mechanism. The raw materials entering the storage box are repeatedly screened by the screening mechanism so that the raw materials that meet the particle size can enter the injection barrel to melt and perform the injection molding process, thereby preventing the product from generating bubbles due to excessive or uneven raw material particle size. After the screening is completed, the plastic particles that do not meet the particle size are taken out by rotating the movable mechanism. In this process, the rotation of the rotating mechanism prevents the raw materials with excessive particle size from accumulating on the screening mechanism, thereby ensuring the normal operation of the screening mechanism. At the same time, when bubbles are generated in the injection barrel, the compensation mechanism can be adjusted to cause partial negative pressure to suck the molten plastic into the injection barrel through the compensation mechanism to further prevent bubbles from being brought into the mold.

Furthermore, the feeding mechanism includes a U-shaped tube, which is installed on the top side of the storage box, a fan is installed on the U-shaped tube, a connecting tube is installed on the fan, a suction port is opened on the feeding barrel, and the connecting tube is installed on the suction port, wherein the feeding mechanism refers to that after adding plastic raw materials into the feeding barrel, the fan is started to suck the plastic raw materials into the connecting tube through the suction port and then into the storage box through the U-shaped tube to complete the automatic feeding process.

Furthermore, the alarm mechanism includes a sliding rod, a sliding hole is provided on the mounting frame, the sliding rod is slidably installed in the sliding hole, a pressure plate is installed at one end of the sliding rod, the pressure plate is adapted to the feed barrel, a contact block is installed at the other end of the sliding rod, a control switch is installed on the mounting frame, the control switch is located on the bottom side of the contact block, a wire is electrically connected to the control switch, an alarm is electrically connected to the wire, the alarm is installed on the mounting frame, a spring is movably sleeved on the sliding rod, one end of the spring is installed on the mounting frame, and the other end of the spring is installed on the pressure plate, wherein the alarm mechanism refers to that as the plastic raw material in the feed barrel decreases, the pressure plate decreases as the plastic raw material decreases under the action of the spring and the pressure plate, thereby driving the contact block to contact the alarm to alarm when the raw material in the feed barrel is about to run out, thereby reminding the operator to feed.

Furthermore, the feed barrel is provided with a scale mark, which is located on the top side of the suction port. The quantitative feeding process is realized by setting the scale mark. In addition, when master batches need to be added to adjust the composition of the plastic raw materials, it is convenient to control the proportion.

Furthermore, the compensation mechanism includes an L-shaped branch pipe, one end of the L-shaped branch pipe is installed on the injection barrel, and the other end of the L-shaped branch pipe is installed on the liquefaction bin, the L-shaped branch pipe is connected with the injection barrel and the liquefaction bin, a ball valve body is movably installed on the L-shaped branch pipe, a through hole is opened on the ball valve body, a rotating shaft is installed on the ball valve body, the rotating shaft is rotatably installed on the L-shaped branch pipe, a rotating block is installed on the rotating shaft, and the rotating block is located on the top side of the L-shaped branch pipe, wherein the compensation mechanism drives the rotating shaft and the ball valve body to rotate by rotating the rotating block, thereby changing the direction of the through hole, so as to change the flow rate of the molten plastic raw material in the L-shaped branch pipe, so that when the front end injection part of the injection barrel contains air, it can escape to the branch mouth of the L-shaped branch pipe to prevent it from entering the mold during the injection process.

Furthermore, the screening mechanism includes a conical bottom, which is installed on a storage box, a sieve plate is installed on the conical bottom, a plurality of through holes suitable for raw materials of different particle sizes are provided on the sieve plate, a groove is provided between the storage box and the conical bottom, a conical baffle is installed on the storage box, the conical baffle is located on the top side of the groove, a connecting hole is provided on the storage box, a connecting pipe is installed on the connecting hole, and the connecting pipe is installed on the connecting pipe, wherein the screening mechanism refers to the plastic particles entering the storage box after being screened by the sieve plate, the raw material particles that meet the particle size pass through the conical bottom evenly into the liquefaction bin for melting, the raw materials that do not meet the particle size and some of the raw material particles that meet the particle size will bounce into the groove, and the screening process is repeated multiple times through the connecting pipe, so that the plastic raw materials that do not meet the particle size remain in the groove, which is beneficial to the molding process.

Furthermore, the rotating mechanism includes a limiting ring, a limiting rotating groove is provided on the U-shaped tube, the limiting ring is rotatably installed in the limiting rotating groove, a turning page is installed on the limiting ring, a connecting rod is installed on the turning page, a shifting rod is installed on the connecting rod, and the shifting rod is in contact with the screen plate. The rotating mechanism refers to that in the process of the U-shaped tube blowing the raw materials into the storage box, the limiting ring will be driven to rotate in the limiting rotating groove under the limiting action of the turning page, thereby driving the shifting rod to rotate on the screen plate through the connecting rod, and the residual raw materials are shifted into the groove to prevent the screen plate from being blocked, thereby ensuring the continuous normal operation of the screen plate.

Furthermore, the movable mechanism includes a movable ring, which is provided with an external thread, and a thread groove is provided on the storage box. The movable ring is threadedly installed in the thread groove, and a handle is installed on the movable ring. The handle is located on the top side of the liquefaction bin. The movable mechanism means that after the injection molding process is completed, the handle is rotated to drive the movable ring to rotate on the thread groove, and the movable ring can be removed to remove the plastic raw material in the groove that does not meet the particle size. This further improves the practicality and scientificity of the structure.

The beneficial effects of the utility model are as follows:

The utility model arranges a fan, a feeding barrel, a U-shaped tube, a sieve plate, a conical bottom, etc. After plastic raw materials are added into the feeding barrel, the fan is started to suck the plastic raw materials into the connecting tube through the suction port and into the storage box through the U-shaped tube to complete the automatic feeding process, thereby eliminating the process of manual feeding. Raw material particles that meet the particle size evenly enter the liquefaction bin through the conical bottom to be melted, and raw material particles that do not meet the particle size and partially meet the particle size will bounce into the groove, and the screening process is repeated for many times through the connecting tube, so that the plastic raw materials that do not meet the particle size are left in the groove, which is beneficial to the molding process.

The utility model, through the arrangement of the alarm, the pressure plate, the sliding rod and the like, as the plastic raw material in the feed barrel decreases, the pressure plate is caused to descend with the decrease of the plastic raw material under the action of the spring cooperating with the pressure plate, so that when the raw material in the feed barrel is about to be exhausted, the contact block is driven to contact the alarm to sound an alarm, reminding the operator to feed the material, thereby improving the practicality and scientificity of the structure.

The utility model realizes the quantitative feeding process by setting the scale mark. In addition, when it is necessary to add masterbatch to adjust the composition of the plastic raw material, it is convenient to control the proportion.

The utility model, through the arrangement of the L-shaped branch pipe, the ball valve body, etc., rotates the rotating block to drive the rotating shaft and the ball valve body to rotate, thereby changing the direction of the through hole, so as to change the flow rate of the molten plastic raw material in the L-shaped branch pipe, so that when the front end injection part of the injection cylinder contains air, it can overflow to the branch port of the L-shaped branch pipe, thereby preventing it from entering the mold during the injection process.

The utility model, through the arrangement of the limit ring, the push rod and the like, during the process of blowing the raw materials into the storage box, the limit ring will be driven to rotate in the limit rotation groove under the limiting action of the turning page, so that the push rod is driven to rotate on the screen plate through the connecting rod, and the residual raw materials are pushed into the groove, so as to prevent the screen plate from being blocked and ensure the continuous normal operation of the screen plate.

BRIEF DESCRIPTION OF THE DRAWINGS

Fig. 1 is a schematic diagram of the three-dimensional structure of the utility model;

FIG2 is a schematic structural diagram of the connecting pipe of the utility model;

FIG3 is a schematic structural diagram of a feed barrel of the present utility model;

FIG4 is a schematic structural diagram of a scale mark of the present invention;

5 is a schematic cross-sectional view of the storage box of the utility model;

FIG6 is a schematic structural diagram of a connection hole of the present invention;

FIG7 is a schematic structural diagram of the lever of the utility model;

FIG8 is a schematic structural diagram of an L-shaped branch pipe of the present invention;

FIG. 9 is a schematic structural diagram of a ball valve body of the present invention.

Figure numerals: 1, base; 2, injection cylinder; 3, liquefaction bin; 4, storage box; 5, feeding mechanism; 5001, U-shaped tube; 5002, fan; 5003, connecting pipe; 5004, suction port; 6, feeding barrel; 7, mounting frame; 8, alarm mechanism; 8001, sliding hole; 8002, sliding rod; 8003, pressing plate; 8004, contact block; 8005, control switch; 8006, wire; 8007, alarm; 8008, scale mark; 8009, spring; 9, compensation mechanism; 9001, L-shaped branch pipe; 90 02. Ball valve body; 9003. Rotating shaft; 9004. Rotating block; 9005. Through hole; 10. Screening mechanism; 1001. Conical bottom; 1002. Screen plate; 1003. Groove; 1004. Conical baffle; 1005. Connecting hole; 1006. Connecting pipe; 11. Rotating mechanism; 1101. Limiting ring; 1102. Limiting rotating groove; 1103. Turning page; 1104. Connecting rod; 1105. Push rod; 12. Movable mechanism; 1201. Movable ring; 1202. Threaded groove; 1203. Handle; 13. Heating assembly.

DETAILED DESCRIPTION

In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. In addition, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

In the description of the embodiments of the present invention, it should be noted that the terms "inside", "outside", "upper", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

1-9, an automatic feeding high-speed injection molding machine includes a base 1, an injection cylinder 2 is installed on the base 1, a liquefaction bin 3 is installed on the injection cylinder 2, and a heating component 13 is installed on the injection cylinder 2, characterized in that: a storage box 4 is installed on the liquefaction bin 3, a feeding mechanism 5 for automatically conveying raw materials to the storage box 4 is installed on the storage box 4, a rotating mechanism 11 is installed on the feeding mechanism 5, a feeding barrel 6 is installed on the feeding mechanism 5, a mounting frame 7 is installed on the feeding barrel 6, an alarm mechanism 8 for reminding to add raw materials is installed on the mounting frame 7, a compensation mechanism 9 for reducing the generation of bubbles in the melted raw materials is installed on the injection cylinder 2, a screening mechanism 10 for screening raw material particles with large particle size is installed on the storage box 4, and a movable mechanism 12 for taking out raw materials with too large particle size is installed on the screening mechanism 10, and the raw materials are removed by injection. When the plastic machine is performing the injection molding process, the raw material is placed in the feed barrel 6, and the plastic particle raw material is automatically transported to the storage box 4 through the feeding mechanism 5. The raw material entering the storage box 4 is repeatedly screened by the screening mechanism 10 so that the raw material that meets the particle size can enter the injection barrel 2 to melt and perform the injection molding process, thereby preventing the product from generating bubbles due to excessive or uneven raw material particle size. After the screening is completed, the plastic particles that do not meet the particle size are taken out by rotating the movable mechanism 12. In this process, the rotation of the rotating mechanism 11 prevents the raw material with too large a particle size from being pushed and accumulated on the screening mechanism 10, thereby ensuring the normal operation of the screening mechanism 10. At the same time, when bubbles are generated in the injection barrel 2, the compensation mechanism 9 can be adjusted to cause partial negative pressure to suck the molten plastic into the injection barrel 2 through the compensation mechanism 9 to further prevent bubbles from being brought into the mold.

1-6, in the embodiment of the utility model, the feeding mechanism 5 includes a U-shaped tube 5001, which is installed on the top side of the storage box 4, and a fan 5002 is installed on the U-shaped tube 5001, and a connecting tube 5003 is installed on the fan 5002. A suction port 5004 is opened on the feeding barrel 6, and the connecting tube 5003 is installed on the suction port 5004. The feeding mechanism 5 refers to that after adding plastic raw materials into the feeding barrel 6, the fan 5002 is started to suck the plastic raw materials into the connecting tube 5003 through the suction port 5004 and then sucked into the storage box 4 through the U-shaped tube 5001 to complete the automatic feeding process.

1-4, in the embodiment of the utility model, the alarm mechanism 8 includes a sliding rod 8002, a sliding hole 8001 is provided on the mounting frame 7, the sliding rod 8002 is slidably installed in the sliding hole 8001, a pressing plate 8003 is installed at one end of the sliding rod 8002, the pressing plate 8003 is adapted to the feeding barrel 6, a contact block 8004 is installed at the other end of the sliding rod 8002, a control switch 8005 is installed on the mounting frame 7, the control switch 8005 is located at the bottom side of the contact block 8004, the control switch 8005 is electrically connected to a wire 8006, and the wire 8006 is electrically connected to An alarm 8007 is connected, and the alarm 8007 is installed on the mounting frame 7. A spring 8009 is movably sleeved on the sliding rod 8002. One end of the spring 8009 is installed on the mounting frame 7, and the other end of the spring 8009 is installed on the pressure plate 8003. The alarm mechanism 8 refers to the pressure plate 8003 that decreases as the plastic raw material in the feeding barrel 6 decreases under the action of the spring 8009 and the pressure plate 8003. When the raw material in the feeding barrel 6 is about to run out, the contact block 8004 is driven to contact the alarm 8007 to alarm, reminding the operator to feed the material.

1-9, in the embodiment of the utility model, a scale mark 8008 is provided on the feed barrel 6, and the scale mark 8008 is located on the top side of the suction port 5004. By setting the scale mark 8008, a quantitative feeding process is realized. In addition, when it is necessary to add masterbatch to adjust the composition of the plastic raw material, it is convenient to control the proportion.

1-9, in the embodiment of the utility model, the compensation mechanism 9 includes an L-shaped branch pipe 9001, one end of the L-shaped branch pipe 9001 is installed on the injection cylinder 2, and the other end of the L-shaped branch pipe 9001 is installed on the liquefaction bin 3. The L-shaped branch pipe 9001 is connected with the injection cylinder 2 and the liquefaction bin 3. A ball valve body 9002 is movably installed on the L-shaped branch pipe 9001, and a through hole 9005 is opened on the ball valve body 9002. A rotating shaft 9003 is installed on the ball valve body 9002, and the rotating shaft 9003 is rotatably installed on the L-shaped branch pipe. On the tube 9001, a rotating block 9004 is installed on the rotating shaft 9003, and the rotating block 9004 is located on the top side of the L-shaped branch pipe 9001. The compensation mechanism 9 drives the rotating shaft 9003 and the ball valve body 9002 to rotate by rotating the rotating block 9004, thereby changing the direction of the through hole 9005, so as to change the flow rate of the molten plastic raw material in the L-shaped branch pipe 9001, so that when there is air in the front end injection part of the injection cylinder 2, it can escape to the branch port of the L-shaped branch pipe 9001 to prevent it from entering the mold during the injection process.

1-8, in the embodiment of the utility model, the screening mechanism 10 includes a conical bottom 1001, the conical bottom 1001 is installed on the storage box 4, a sieve plate 1002 is installed on the conical bottom 1001, a plurality of through holes suitable for the particle size of the raw material are provided on the sieve plate 1002, a groove 1003 is provided between the storage box 4 and the conical bottom 1001, a conical baffle 1004 is installed on the storage box 4, the conical baffle 1004 is located on the top side of the groove 1003, a connecting hole 1005 is provided on the storage box 4, and a connecting hole 1005 is provided on the connecting hole 1005. A connecting pipe 1006 is provided, and the connecting pipe 1006 is installed on the connecting pipe 5003, wherein the screening mechanism 10 refers to the plastic particles entering the storage box 4, after being screened by the screen plate 1002, the raw material particles that meet the particle size pass through the conical bottom 1001 and evenly enter the liquefaction bin 3 for melting, the raw materials that do not meet the particle size and some of the raw material particles that meet the particle size will bounce into the groove 1003, and the screening process is repeated many times through the connecting pipe 1006, so that the plastic raw materials that do not meet the particle size are left in the groove 1003, which is beneficial to the molding process.

1-7, in the embodiment of the utility model, the rotating mechanism 11 includes a limit ring 1101, a limit rotation groove 1102 is provided on the U-shaped tube 5001, the limit ring 1101 is rotatably installed in the limit rotation groove 1102, a turning page 1103 is installed on the limit ring 1101, a connecting rod 1104 is installed on the turning page 1103, a lever 1105 is installed on the connecting rod 1104, and the lever 1105 is in contact with the sieve plate 1002, wherein the rotating mechanism 11 refers to that in the process of the U-shaped tube 5001 blowing the raw material into the storage box 4, the limit ring 1101 will be driven to rotate in the limit rotation groove 1102 under the limiting action of the turning page 1103, thereby driving the lever 1105 to rotate on the sieve plate 1002 through the connecting rod 1104, and the residual raw material is pushed into the groove 1003 to prevent the sieve plate 1002 from being blocked, thereby ensuring the continuous normal operation of the sieve plate 1002.

1-6, in the embodiment of the utility model, the movable mechanism 12 includes a movable ring 1201, the movable ring 1201 is provided with an external thread, the storage box 4 is provided with a thread groove 1202, the movable ring 1201 is threadedly installed in the thread groove 1202, and the movable ring 1201 is provided with a handle 1203, and the handle 1203 is located on the top side of the liquefaction tank 3, wherein the movable mechanism 12 refers to that after the injection molding process is completed, the handle 1203 is rotated to drive the movable ring 1201 to rotate on the thread groove 1202, and the movable ring 1201 is removed to remove the plastic raw material that does not meet the particle size in the groove 1003, thereby further improving the practicability and scientificity of the structure.

In summary, when the injection molding process is carried out by the injection molding machine, the raw material is placed in the feed barrel 6, and the plastic granular raw material is automatically transported to the storage box 4 through the feeding mechanism 5. The raw material entering the storage box 4 is repeatedly screened by the screening mechanism 10 so that the raw material that meets the particle size can enter the injection barrel 2 to melt and perform the injection molding process, thereby preventing the product from generating bubbles due to excessive or uneven raw material particle size. After the screening is completed, the plastic particles that do not meet the particle size are taken out by rotating the movable mechanism 12. In this process, the rotation of the rotating mechanism 11 prevents the raw material with too large a particle size from being pushed and accumulated on the screening mechanism 10, thereby ensuring the normal operation of the screening mechanism 10. At the same time, when bubbles are generated in the injection barrel 2, the compensation mechanism 9 can be adjusted to cause partial negative pressure to melt the molten plastic through the compensation mechanism. Mechanism 9 sucks into the injection barrel 2 to further prevent bubbles from being brought into the mold, wherein the feeding mechanism 5 refers to after adding plastic raw materials into the feeding barrel 6, starting the fan 5002 to suck the plastic raw materials into the connecting pipe 5003 through the suction port 5004 and suck them into the storage box 4 through the U-shaped tube 5001 to complete the automatic feeding process, wherein the alarm mechanism 8 refers to as the plastic raw materials in the feeding barrel 6 decrease, under the action of the spring 8009 and the pressing plate 8003, the pressing plate 8003 decreases as the plastic raw materials decrease, so that when the raw materials in the feeding barrel 6 are about to run out, the contact block 8004 contacts the alarm 8007 to alarm, reminding the operator to feed, and the quantitative feeding process is realized by setting the scale mark 8008. In addition, when it is necessary to add masterbatch to adjust the composition of the plastic raw materials , which is convenient for controlling the ratio. The compensation mechanism 9 drives the rotating shaft 9003 and the ball valve body 9002 to rotate by rotating the rotating block 9004, thereby changing the direction of the through hole 9005, so as to change the flow rate of the molten plastic raw material in the L-shaped branch pipe 9001, so that when there is air in the front injection part of the injection cylinder 2, it can escape to the branch mouth of the L-shaped branch pipe 9001 to prevent it from entering the mold during the injection process. The screening mechanism 10 refers to the plastic particles entering the storage box 4 after being screened by the screen plate 1002. The raw material particles that meet the particle size pass through the conical bottom 1001 and evenly enter the liquefaction bin 3 for melting. The raw materials that do not meet the particle size and some of the raw material particles that meet the particle size will bounce into the groove 1003, and the screening process will be repeated many times through the connecting pipe 1006, so that The plastic raw materials that do not meet the particle size are left in the groove 1003, which is beneficial to the molding process. The rotating mechanism 11 refers to the process in which the U-tube 5001 blows the raw materials into the storage box 4. Under the limiting action of the turning page 1103, the limiting ring 1101 will be driven to rotate in the limiting rotating groove 1102, thereby driving the lever 1105 to rotate on the sieve plate 1002 through the connecting rod 1104, and the remaining raw materials are pushed into the groove 1003 to prevent the sieve plate 1002 from being blocked, thereby ensuring the normal and continuous operation of the sieve plate 1002. The plastic raw materials that do not meet the particle size in the groove 1003 can be taken out by turning the handle 1203 to drive the movable ring 1201 to rotate on the threaded groove 1202 and removing the movable ring 1201, thereby further improving the practicality and scientificity of the structure.

The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may have various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims (8)

1. An automatic feeding high-speed injection molding machine, comprising a base (1), a syringe (2) mounted on the base (1), a liquefaction bin (3) mounted on the syringe (2), a heating assembly (13) mounted on the syringe (2), characterized in that: a storage box (4) is mounted on the liquefaction bin (3), a feeding mechanism (5) for automatically conveying raw materials into the storage box (4) is mounted on the storage box (4), a rotating mechanism (11) is mounted on the feeding mechanism (5), a feeding barrel (6) is mounted on the feeding barrel (6), a mounting frame (7) is mounted on the feeding barrel (6), an alarm mechanism (8) for reminding to add raw materials is mounted on the mounting frame (7), a compensation mechanism (9) for reducing the generation of bubbles in the melted raw materials is mounted on the syringe (2), a screening mechanism (10) for screening raw material particles with large particle sizes is mounted on the storage box (4), and a movable mechanism (12) for removing raw materials with excessively large particle sizes is mounted on the screening mechanism (10). 2. An automatic feeding high-speed injection molding machine according to claim 1, characterized in that the feeding mechanism (5) includes a U-shaped tube (5001), the U-shaped tube (5001) is installed on the top side of the storage box (4), a fan (5002) is installed on the U-shaped tube (5001), a connecting pipe (5003) is installed on the fan (5002), a suction port (5004) is opened on the feeding barrel (6), and the connecting pipe (5003) is installed on the suction port (5004). 3. An automatic feeding high-speed injection molding machine according to claim 1, characterized in that the alarm mechanism (8) includes a sliding rod (8002), a sliding hole (8001) is opened on the mounting frame (7), the sliding rod (8002) is slidably installed in the sliding hole (8001), a pressing plate (8003) is installed at one end of the sliding rod (8002), the pressing plate (8003) is adapted to the feeding barrel (6), a contact block (8004) is installed at the other end of the sliding rod (8002), and a A control switch (8005) is provided, the control switch (8005) is located at the bottom side of the contact block (8004), the control switch (8005) is electrically connected to a wire (8006), the wire (8006) is electrically connected to an alarm (8007), the alarm (8007) is mounted on a mounting frame (7), a spring (8009) is movably sleeved on the sliding rod (8002), one end of the spring (8009) is mounted on the mounting frame (7), and the other end of the spring (8009) is mounted on the pressure plate (8003). 4. An automatic feeding high-speed injection molding machine according to claim 2, characterized in that a scale mark (8008) is provided on the feeding barrel (6), and the scale mark (8008) is located on the top side of the suction port (5004). 5. An automatic feeding high-speed injection molding machine according to claim 1, characterized in that the compensation mechanism (9) includes an L-shaped branch pipe (9001), one end of the L-shaped branch pipe (9001) is installed on the injection cylinder (2), and the other end of the L-shaped branch pipe (9001) is installed on the liquefaction bin (3), the L-shaped branch pipe (9001) is connected with the injection cylinder (2) and the liquefaction bin (3), a ball valve body (9002) is movably installed on the L-shaped branch pipe (9001), a through hole (9005) is opened on the ball valve body (9002), a rotating shaft (9003) is installed on the ball valve body (9002), the rotating shaft (9003) is rotatably installed on the L-shaped branch pipe (9001), a rotating block (9004) is installed on the rotating shaft (9003), and the rotating block (9004) is located on the top side of the L-shaped branch pipe (9001). 6. An automatic feeding high-speed injection molding machine according to claim 2, characterized in that the screening mechanism (10) includes a conical bottom (1001), the conical bottom (1001) is installed on the storage box (4), a sieve plate (1002) is installed on the conical bottom (1001), a plurality of through holes suitable for the particle size of raw materials are provided on the sieve plate (1002), a groove (1003) is provided between the storage box (4) and the conical bottom (1001), a conical baffle (1004) is installed on the storage box (4), the conical baffle (1004) is located on the top side of the groove (1003), a connecting hole (1005) is provided on the storage box (4), a connecting pipe (1006) is installed on the connecting hole (1005), and the connecting pipe (1006) is installed on the connecting pipe (5003). 7. An automatic feeding high-speed injection molding machine according to claim 2, characterized in that the rotating mechanism (11) includes a limit ring (1101), a limit rotation groove (1102) is opened on the U-shaped tube (5001), the limit ring (1101) is rotatably installed in the limit rotation groove (1102), a turning page (1103) is installed on the limit ring (1101), a connecting rod (1104) is installed on the turning page (1103), a shifting rod (1105) is installed on the connecting rod (1104), and the shifting rod (1105) is in contact with the screen plate (1002). 8. An automatic feeding high-speed injection molding machine according to claim 1, characterized in that the movable mechanism (12) includes a movable ring (1201), the movable ring (1201) is provided with an external thread, the material storage box (4) is provided with a thread groove (1202), the movable ring (1201) is threadedly installed in the thread groove (1202), and a handle (1203) is installed on the movable ring (1201), and the handle (1203) is located on the top side of the liquefaction bin (3).