Feeding auxiliary mechanism and auxiliary method based on plastic processing injection molding machine

Abstract

The present invention relates to the technical field of injection molding machines, and discloses a feeding auxiliary mechanism based on a plastic processing injection molding machine, comprising a shell, a feeding pipe is fixedly installed on the top of the shell, a filter plate is slidably connected inside the feeding pipe, a connecting rod is fixedly installed in the middle of the bottom end of the filter plate, a contact is fixedly installed at the bottom end of the connecting rod, a resistor bar is fixedly installed on the rear end of the inner wall of the shell, a turntable is rotatably connected inside the shell, and a bending rod is movably connected to the front end of the turntable. The feeding auxiliary mechanism and auxiliary method based on the plastic processing injection molding machine adjust the air pressure inside the shell according to the speed at which the raw material passes through the shell, so that the air pressure inside the shell is higher than the normal external atmospheric pressure. At this time, the gas inside the shell is discharged to the outside of the shell through a discharge pipe, and the raw material is pushed during the movement of the gas, thereby accelerating the discharge of the raw material from the discharge pipe, thereby avoiding the phenomenon of blockage of the raw material discharge from the shell.

Description

Technical Field

[0001] The invention relates to the technical field of injection molding machines, in particular to a feeding auxiliary mechanism and an auxiliary method based on a plastic processing injection molding machine. Background Art

[0002] The injection molding machine injects viscous plastic into a mold, and when the viscous plastic solidifies, it is taken out to obtain the required workpiece. The products molded by the injection molding machine are mostly cheaper than other products, making injection molded products widely used in people's daily lives. When using the injection molding machine, a feeding device is required to assist in feeding to increase the efficiency of feeding.

[0003] The current feeding mechanism places the injection molding particles on the conveyor belt and transports them to the inside of the injection molding machine during feeding. When a large amount of raw materials are placed on the surface of the conveyor belt and the operator does not adjust the conveying speed in time, the feeding pipe of the injection molding machine will be blocked, which will lead to the failure of timely replenishment of raw materials inside the injection molding machine and reduce the processing rate.

[0004] The feeding auxiliary mechanism and auxiliary method based on the plastic processing injection molding machine adjust the air pressure inside the shell by the speed at which the raw material passes through the shell, so that the air pressure inside the shell is higher than the normal external atmospheric pressure. At this time, the gas inside the shell is discharged to the outside of the shell through the discharge pipe, and the raw material is pushed during the movement of the gas, thereby accelerating the discharge of the raw material from the discharge pipe, thereby avoiding the phenomenon of blockage of the raw material discharge from the shell. At the same time, when the raw material moves, the baffles are driven away from each other by the driven disk, and the discharge pipe is opened when the baffles are away from each other, and the increase in the cross-sectional area through which the raw material passes is directly proportional to the speed at which the raw material moves, thereby avoiding that all the raw material enters the injection molding machine when the discharge is slow, resulting in reduced injection molding quality. Summary of the invention

[0005] In order to achieve the above-mentioned purpose of preventing the injection molding machine from being blocked, the present invention provides the following technical solution: a feeding auxiliary mechanism based on a plastic processing injection molding machine, comprising a shell, a feeding pipe is fixedly installed on the top of the shell, a filter plate is slidably connected inside the feeding pipe, a connecting rod is fixedly installed in the middle of the bottom end of the filter plate, a contact is fixedly installed at the bottom end of the connecting rod, a resistor bar is fixedly installed at the rear end of the inner wall of the shell, a turntable is rotatably connected inside the shell, a bending rod is movably connected to the front end of the turntable, a push rod is rotatably connected to the end of the bending rod away from the turntable, an air cavity is fixedly installed on the left and right sides of the shell, a safety valve is fixedly installed inside the air cavity, a push block is slidably connected to the upper and lower sides of the safety valve, and one end of the push block close to the edge of the air cavity A fixing rod is fixedly installed, and a blocking block is fixedly installed on the end of the fixing rod away from the pushing block, and a fixing plate is fixedly installed inside the air cavity, and side plates are fixedly installed on the upper and lower sides of the air cavity near the middle end of the shell body, and an air spring is fixedly connected to the end of the inner wall side plates of the air cavity close to each other, and an air inlet is provided at the end of the air spring close to the air cavity, and an air valve is movably connected to the inner wall of the side plates close to each other, and a cross plate is fixedly installed on the bottom of the shell body, and support rods are fixedly installed on the front and rear ends of the cross plate, and a driven disk is provided at the bottom end of the cross plate, and a return spring is fixedly installed at the bottom end of the driven disk, and connecting rods are rotatably connected to the left and right sides of the driven disk, and the bottom end of the connecting rod is rotatably connected to a baffle, and a discharge pipe is fixedly installed on the bottom end of the shell.

[0006] As an optimization, the central rotation at the rear end of the turntable is connected to the driving end of the motor, and the motor and the resistor bar are electrically connected. The resistance of the resistor bar gradually decreases as the contact moves downward. When the contact moves, the amount of current flowing into the motor increases. The motor is driven and the rotation speed is directly proportional to the distance the contact moves.

[0007] As an optimization, the bent rod is rotatably connected by two rods, and the connecting ends of the two rods are rotatably connected to the edge of the turntable.

[0008] As an optimization, the push rod is slidably connected inside the air cavity, the shape of the air cavity is T-shaped, and a one-way valve opening to the air cavity is fixedly installed at one end where the shell surface and the air cavity are fixedly connected, and the gas outside the shell enters the air cavity through the one-way valve.

[0009] As an optimization, an air outlet pipe is fixedly installed at the upper and lower ends of the safety valve. The air outlet pipe runs through the upper and lower ends of the air cavity. The cross-sectional sizes of the air outlet pipe and the blocking block are adapted. The blocking block blocks the air outlet pipe to prevent gas from passing through the safety valve.

[0010] As an optimization, an air outlet is provided on the surface of the fixing plate, and one end of the fixing plate close to the push rod is movably connected to the push rod through a spring.

[0011] As an optimization, there are two transverse plates, the two transverse plates are fixedly connected by a straight rod, and the driven plate is slidably connected to the surface of the straight rod.

[0012] As an optimization, the baffle is slidably connected to the bottom end of the shell, the length of the baffle is greater than the cross-sectional diameter of the discharge pipe, and the baffle covers the discharge pipe in an initial state to prevent material leakage.

[0013] The auxiliary method based on the feeding auxiliary mechanism of the plastic processing injection molding machine has the following specific steps:

[0014] S1: Clean the inside of the shell, connect the bottom end of the discharge pipe with the injection molding machine feed pipe to complete the preparation work;

[0015] S2: placing the raw material to be injected on the top of the housing, and turning on the switch of the feed pipe to allow the raw material to enter the interior of the housing 1 through the feed pipe 2;

[0016] S3: When the raw material moves inside the housing 1 toward the discharge pipe, the discharge speed of the raw material is automatically controlled so that the raw material quickly passes through the discharge pipe and enters the injection molding machine;

[0017] S4: Start the injection molding machine to perform injection molding on the conveyed raw materials;

[0018] S5: After the injection molding is completed, the feed pipe and the discharge pipe are closed in sequence, and the shell 1 is cleaned after the raw materials inside the shell are discharged.

[0019] The beneficial effects of the present invention are as follows: the feeding auxiliary mechanism and auxiliary method based on the plastic processing injection molding machine adjust the air pressure inside the shell by the speed at which the raw material passes through the shell, so that the air pressure inside the shell is higher than the normal external atmospheric pressure. At this time, the gas inside the shell is discharged to the outside of the shell through the discharge pipe, and the raw material is pushed during the movement of the gas, thereby accelerating the discharge of the raw material from the discharge pipe, thereby avoiding the phenomenon of blockage of the raw material discharge from the shell. At the same time, when the raw material moves, the baffles are driven away from each other by the driven disk. When the baffles are away from each other, the discharge pipe is opened, and the increase in the cross-sectional area through which the raw material passes is directly proportional to the speed at which the raw material moves, thereby avoiding the raw material from entering the injection molding machine when the discharge is slow, thereby reducing the injection molding quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the internal structure of the present invention;

[0022] Figure 3 It is a schematic diagram of the air cavity structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the safety valve structure of the present invention;

[0024] Figure 5 For the present invention Figure 3 The enlarged structural diagram at A in the middle;

[0025] Figure 6 This is a schematic diagram of the connection of the driven disk structure of the present invention;

[0026] Figure 7 For the present invention Figure 6 Schematic diagram of the structure side view.

[0027] In the figure: 1. Shell; 2. Feed pipe; 3. Filter plate; 4. Connecting rod; 5. Contact; 6. Resistance bar; 7. Turntable; 8. Bending rod; 9. Push rod; 10. Air cavity; 11. Safety valve; 12. Push block; 13. Fixed rod; 14. Block; 15. Fixed plate; 16. Side plate; 17. Air spring; 18. Air inlet; 19. Air valve; 20. Cross plate; 21. Support rod; 22. Driven disk; 23. Return spring; 24. Connecting rod; 25. Baffle; 26. Discharge pipe. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0029] The auxiliary method based on the feeding auxiliary mechanism of the plastic processing injection molding machine has the following specific steps:

[0030] S1: Clean the interior of the housing 1 and connect the bottom end of the discharge pipe 26 to the feed pipe of the injection molding machine to complete the preparation work;

[0031] S2: placing the raw material to be injected on the top of the housing 1, and turning on the switch of the feed pipe 2 to allow the raw material to enter the interior of the housing 1 through the feed pipe 2;

[0032] S3: When the raw material moves inside the housing 1 toward the discharge pipe 26, the discharge speed of the raw material is automatically controlled so that the raw material quickly passes through the discharge pipe and enters the injection molding machine;

[0033] S4: Start the injection molding machine to perform injection molding on the conveyed raw materials;

[0034] S5: After the injection molding is completed, the feed pipe 2 and the discharge pipe 26 are closed in sequence, and the shell 1 is cleaned after the raw materials inside the shell 1 are discharged.

[0035] See also Figure 1-5The feeding auxiliary mechanism based on the plastic processing injection molding machine includes a shell 1, a feeding pipe 2 is fixedly installed on the top of the shell 1, a filter plate 3 is slidably connected inside the feeding pipe 2, a connecting rod 4 is fixedly installed in the middle of the bottom end of the filter plate 3, a contact 5 is fixedly installed at the bottom end of the connecting rod 4, a resistor bar 6 is fixedly installed at the rear end of the inner wall of the shell 1, a turntable 7 is rotatably connected inside the shell 1, and the center of the rear end of the turntable 7 is rotatably connected to the driving end of the motor, the motor and the resistor bar 6 are electrically connected, and the resistance value of the resistor bar 6 gradually decreases as the contact 5 moves downward. The contact 5 moves, and the amount of current flowing into the motor increases. The motor is driven, and the speed is proportional to the distance moved by the contact 5. The front end of the turntable 7 is movably connected with a bent rod 8, and the bent rod 8 is rotatably connected by two rods. The connecting ends of the two rods are rotatably connected to the edge of the turntable 7. The end of the bent rod 8 away from the turntable 7 is rotatably connected with a push rod 9. The push rod 9 is slidably connected to the inside of the air cavity 10. The shape of the air cavity 10 is T-shaped. A one-way valve opening to the air cavity 10 is fixedly installed at one end of the surface of the shell 1 that is fixedly connected to the air cavity 10. The gas outside the shell 1 passes through The one-way valve enters the air cavity 10, and the air cavity 10 is fixedly installed on the left and right sides of the shell 1. A safety valve 11 is fixedly installed inside the air cavity 10. An air outlet pipe is fixedly installed at the upper and lower ends of the safety valve 11. The air outlet pipe runs through the upper and lower ends of the air cavity 10. The cross-sectional sizes of the air outlet pipe and the blocking block 14 are adapted. The blocking block 14 blocks the air outlet pipe to prevent gas from passing through the safety valve 11. Push blocks 12 are slidably connected to the upper and lower sides of the safety valve 11. A fixed rod 13 is fixedly installed at one end of the push block 12 close to the edge of the air cavity 10, and the fixed rod 13 is away from the push block 12. A blocking block 14 is fixedly installed at one end of the block 12, a fixing plate 15 is fixedly installed inside the air cavity 10, an air outlet is provided on the surface of the fixing plate 15, the fixing plate 15 is movably connected to the push rod 9 at one end thereof through a spring, side plates 16 are fixedly installed on the upper and lower sides of one end of the air cavity 10 near the middle of the shell 1, an air spring 17 is fixedly connected to one end of the inner wall of the air cavity 10 near the side plates 16, an air inlet 18 is provided at one end of the air spring 17 near the air cavity 10, and an air valve 19 is movably connected to the inner wall of one end of the side plates 16 near each other.

[0036] See also Figure 1 , 2, 6 and 7, a transverse plate 20 is fixedly installed at the bottom of the shell 1, and there are two transverse plates 20. The two transverse plates 20 are fixedly connected by a straight rod, and a driven plate 22 is slidably connected to the surface of the straight rod. Support rods 21 are fixedly installed at both front and rear ends of the transverse plate 20, and a driven plate 22 is provided at the bottom end of the transverse plate 20. A return spring 23 is fixedly installed at the bottom end of the driven plate 22. The left and right sides of the driven plate 22 are rotatably connected with connecting rods 24, and the bottom end of the connecting rod 24 is rotatably connected with a baffle 25, which is slidably connected to the bottom end of the shell 1. The length of the baffle 25 is greater than the cross-sectional diameter of the discharge pipe 26. The baffle 25 covers the discharge pipe 26 in the initial state to prevent material leakage, and the discharge pipe 26 is fixedly installed at the bottom end of the shell 1.

[0037] When in use, the raw material is put into the shell 1 through the feed pipe 2. The material drives the filter plate 3 downward in the process of moving downward through the filter plate 3. When the filter plate 3 moves downward, it drives the contact 5 downward through the connecting rod 4. When the contact 5 moves, the resistance of the resistor bar 6 circuit is reduced, so that the motor electrically connected to the resistor bar 6 is driven. After the motor rotates, it drives the turntable 7 to rotate. The rotation of the turntable 7 drives the movable connected bent rod 8 to rotate. The rotation of the bent rod 8 drives the movable connected push rod 9 to reciprocate in the horizontal direction. When the push rod 9 moves in the direction away from the fixed plate 15, due to the decrease in the air pressure inside the air cavity 10, the gas outside the shell 1 flows into the inside of the air cavity 10 through the one-way valve, so that the air pressure inside the air cavity 10 is reduced. When the push rod 9 moves in the direction close to the fixed plate 15, the one-way valve is closed. At the same time, the gas enters the inside of the air spring 17 through the air inlet 18. The expansion of the air spring 17 pushes the air valve 19 to open, so that the inside of the air cavity 10 The gas is discharged to the inside of the shell 1 through the air valve 19, thereby increasing the air pressure inside the shell 1. When the gas is discharged to the outside through the discharge pipe 26, the speed of the raw material being discharged from the discharge pipe 26 is accelerated, thereby avoiding blockage during discharge. When the rotation speed of the turntable 7 is too fast, resulting in excessive gas inside the air cavity 10, the gas pushes the push block 12 through the safety valve 11, and the push block 12 drives the blocking block 14 to move away from the air cavity 10 through the fixed rod 13. When the blocking block 14 no longer blocks the air cavity 10, the gas inside the air cavity 10 is quickly discharged, thereby avoiding a large amount of gas accumulated inside the air cavity 10 to cause safety hazards. When the raw material is discharged from the discharge pipe 26 through the shell 1, the raw material pushes the driven disk 22 downward to compress the return spring 23. When the driven disk 22 moves, it drives the movably connected baffles 25 to move away from each other through the connecting rod 24, and the amplitude of movement of the baffle 25 is directly proportional to the speed at which the raw material passes through the shell 1, thereby achieving the purpose of automatically adjusting the size of the discharge pipe according to the raw material conveying speed.

[0038] To sum up, the feeding auxiliary mechanism and auxiliary method based on the plastic processing injection molding machine adjust the air pressure inside the shell 1 by the speed at which the raw material passes through the shell 1, so that the air pressure inside the shell 1 is higher than the normal atmospheric pressure outside. At this time, the gas inside the shell 1 is discharged to the outside of the shell 1 through the discharge pipe 26. The raw material is pushed during the movement of the gas, thereby accelerating the discharge of the raw material from the discharge pipe 26, thereby avoiding the phenomenon of blockage of the raw material discharge from the shell 1. At the same time, when the raw material moves, the baffles 25 are driven away from each other through the driven disk 22. When the baffles 25 are away from each other, the discharge pipe 26 is opened, and the increase in the cross-sectional area of ​​the raw material passing through 26 is directly proportional to the speed of the raw material movement, thereby avoiding that all the raw material enters the injection molding machine when the discharge is slow, resulting in reduced injection molding quality.

[0039] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A feeding auxiliary mechanism based on a plastic processing injection molding machine, comprising a housing (1), characterized in that: A feed pipe (2) is fixedly mounted on the top of the shell (1), a filter plate (3) is slidably connected to the inside of the feed pipe (2), a connecting rod (4) is fixedly mounted in the middle of the bottom end of the filter plate (3), a contact (5) is fixedly mounted on the bottom end of the connecting rod (4), a resistor bar (6) is fixedly mounted on the rear end of the inner wall of the shell (1), a rotating disk (7) is rotatably connected to the inside of the shell (1), a bent rod (8) is movably connected to the front end of the rotating disk (7), and the bent rod (8) A push rod (9) is rotatably connected to the end away from the rotating disk (7), an air cavity (10) is fixedly installed on both the left and right sides of the shell (1), a safety valve (11) is fixedly installed inside the air cavity (10), a push block (12) is slidably connected to both the upper and lower sides of the safety valve (11), a fixed rod (13) is fixedly installed on one end of the push block (12) close to the edge of the air cavity (10), and a blocking block (14) is fixedly installed on the end of the fixed rod (13) away from the push block (12) A fixing plate (15) is fixedly installed inside the air cavity (10), and side plates (16) are fixedly installed on both upper and lower sides of one end of the air cavity (10) close to the middle of the shell (1). An air spring (17) is fixedly connected to one end of the inner wall of the air cavity (10) where the side plates (16) are close to each other. An air inlet (18) is provided at one end of the air spring (17) close to the air cavity (10). An air valve (19) is movably connected to the inner wall of the side plates (16) where one end is close to each other. The shell (1 ) is fixedly installed at the bottom of the interior, support rods (21) are fixedly installed at both the front and rear ends of the transverse plate (20), a driven disk (22) is arranged at the bottom end of the transverse plate (20), a return spring (23) is fixedly installed at the bottom end of the driven disk (22), connecting rods (24) are rotatably connected to the left and right sides of the driven disk (22), a baffle (25) is rotatably connected to the bottom end of the connecting rod (24), and a discharge pipe (26) is fixedly installed at the bottom end of the shell (1); The center of the rear end of the rotating disk (7) is rotatably connected to the driving end of the motor, the motor is electrically connected to the resistor bar (6), and the resistance value of the resistor bar (6) gradually decreases as the contact (5) moves downward; The bent rod (8) is rotatably connected by two rods, and the connecting ends of the two rods are rotatably connected to the edge of the rotating disk (7); The push rod (9) is slidably connected inside the air cavity (10); the air cavity (10) is T-shaped; a one-way valve opening toward the air cavity (10) is fixedly mounted on one end of the housing (1) surface that is fixedly connected to the air cavity (10).

2. The feeding auxiliary mechanism based on the plastic processing injection molding machine according to claim 1 is characterized in that: An air outlet pipe is fixedly installed at the upper and lower ends of the safety valve (11), and the air outlet pipe runs through the upper and lower ends of the air cavity (10). The cross-sectional sizes of the air outlet pipe and the blocking block (14) are matched.

3. The feeding auxiliary mechanism based on the plastic processing injection molding machine according to claim 1 is characterized in that: An air outlet hole is provided on the surface of the fixing plate (15), and one end of the fixing plate (15) close to the push rod (9) is movably connected to the push rod (9) via a spring.

4. The feeding auxiliary mechanism based on the plastic processing injection molding machine according to claim 1 is characterized in that: There are two transverse plates (20), the two transverse plates (20) are fixedly connected by a straight rod, and the driven disc (22) is slidably connected to the surface of the straight rod.

5. The feeding auxiliary mechanism based on the plastic processing injection molding machine according to claim 1, characterized in that: The baffle (25) is slidably connected to the bottom end of the shell (1), and the length of the baffle (25) is greater than the cross-sectional diameter of the discharge pipe (26).

6. The auxiliary method based on the feeding auxiliary mechanism of the plastic processing injection molding machine according to claim 1, characterized in that: The auxiliary method of the feeding auxiliary mechanism has the following specific steps: S1: Clean the interior of the housing (1), and connect the bottom end of the discharge pipe (26) to the feed pipe of the injection molding machine to complete the preparation work; S2: placing the raw material to be injected on the top of the housing (1), and opening the switch of the feed pipe (2) to allow the raw material to enter the interior of the housing (1) through the feed pipe (2); S3: When the raw material moves from the inside of the housing (1) to the discharge pipe (26), the discharge speed of the raw material is automatically controlled so that the raw material quickly passes through the discharge pipe and enters the injection molding machine; S4: Start the injection molding machine to perform injection molding on the conveyed raw materials; S5: After the injection molding is completed, the feed pipe (2) and the discharge pipe (26) are closed in sequence, and the shell (1) is cleaned after the raw materials inside the shell (1) are discharged.

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