Injection molding machine with protection function

Abstract

The utility model provides an injection molding machine with a protection function, and relates to the technical field of injection molding machines, the injection molding machine comprises a main frame body, a guide rod, a sliding frame and a charging barrel, an injection molding mechanism is arranged in the charging barrel, one end of the charging barrel is fixedly provided with a heater, the top of the charging barrel is communicated with a feeding hopper, and a protection mechanism is arranged on the main frame body; the output end of the rotating air cylinder is hinged to the protection frame through the connecting arm and the pin shaft, the output end of the rotating air cylinder can drive the protection frame to rotate around the hinge point of the protection frame and the main frame body, and therefore the top of the protection frame rotates to the top of the feeding hopper, and the top of the protection frame automatically separates the top of the feeding hopper. The threaded rod can be screwed to drive the end cover to move downwards, so that the end cover covers the top of the feeding hopper and is used for completely sealing the top of the feeding hopper, the machine body is prevented from being collided and damaged by other foreign matters or the service life of the machine body is prevented from being influenced by dust accumulation, and the protection mechanism can automatically relieve limitation on the top of the feeding hopper and is convenient to use.

Description

Technical Field

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

[0002] Injection molding machine, also known as injection molding machine or injection machine, is the main molding equipment for thermoplastic plastics or thermosetting plastics using plastic molding molds to make plastic products of various shapes. 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.

[0003] After the injection molding machine is used, in order to prevent other foreign objects from colliding and damaging the machine body, or to prevent dust accumulation from affecting the service life of the machine body, a cover will be used to shield and cover the feed hopper of the injection molding machine, thereby forming an injection molding machine with a protective function. For the above-mentioned injection molding machines, the existing injection molding machines have general convenience in disassembly and assembly of the cover, which increases the labor intensity of the staff, and the disassembly and assembly time is long, which affects the subsequent injection molding production. Therefore, the utility model proposes an injection molding machine with a protective function to solve the above problems. Utility Model Content

[0004] In view of the above problems, the present invention proposes an injection molding machine with a protective function to solve the problems in the prior art that the disassembly and assembly of the cover of the injection molding machine is generally inconvenient, which increases the labor intensity of the staff and takes a long time for disassembly and assembly.

[0005] To achieve the purpose of the utility model, the utility model is implemented through the following technical solutions: an injection molding machine with a protective function, including a main frame, a guide rod, a sliding frame and a barrel, the top of the main frame is symmetrically fixedly connected with the guide rod, the outer side of the guide rod is slidably connected with the sliding frame, the interior of the sliding frame is fixedly installed with a barrel, the interior of the barrel is provided with an injection molding mechanism, a heater is fixedly installed at one end of the barrel, the top of the barrel is connected to a feed hopper, and a protective mechanism is provided on the main frame.

[0006] Further improvements are: the protective mechanism includes a protective frame, a rotating cylinder and a connecting arm, the top of the main frame is hinged with the protective frame, one side of the main frame is hinged with the rotating cylinder, the output end of the rotating cylinder is fixedly connected to the connecting arm, and one side of the connecting arm is hinged to one side of the protective frame through a pin shaft.

[0007] A further improvement is that the top of the protective frame is threadedly connected to a threaded rod, the bottom end of the threaded rod is rotatably connected to an end cover, and the diameter of the end cover is equal to the diameter of the top of the feed hopper.

[0008] A further improvement is that the injection molding mechanism includes a screw and a self-locking motor, the screw is rotatably connected inside the barrel, a self-locking motor is installed on one side of the sliding frame, and the output end of the self-locking motor is fixedly connected to one end of the screw.

[0009] A further improvement is that: a conical structure is provided at one end of the barrel, an injection port is provided at one end of the conical structure, and a driving mechanism is provided on the inner side of the main frame.

[0010] Further improvements are: the driving mechanism includes a rotating motor and a screw, the inner side of the main frame is rotatably connected to the screw, one side of the main frame is fixedly installed with a rotating motor, the output end of the rotating motor is fixedly connected to one end of the screw, and one end of the screw passes through the bottom of the sliding frame and is threadedly connected to it.

[0011] A further improvement is that a protective shell is provided on the outside of the self-locking motor and the rotating motor, and a group of bolts are symmetrically provided on both sides of the protective shell. The two protective shells are detachably connected to the sliding frame and one side of the main frame through the bolts.

[0012] The beneficial effects of the present invention are as follows: the output end of the rotating cylinder is hinged to the protective frame through a connecting arm and a pin shaft, and the output end of the rotating cylinder can drive the protective frame to rotate around the hinge point between the protective frame and the main frame, so that the top of the protective frame rotates to the top of the feed hopper, or rotates out of the top range of the feed hopper, so that the top of the protective frame automatically separates or releases the restriction on the top of the feed hopper. When the top of the protective frame hovers directly above the feed hopper, the threaded rod can be screwed to drive the end cover to move downward, so that the end cover is closed on the top of the feed hopper to completely seal the top of the feed hopper, avoiding other foreign objects from colliding with the machine body or dust accumulation affecting the service life of the machine body, and the protective mechanism can automatically release the restriction on the top of the feed hopper, which is easy to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is the main view of the utility model;

[0014] Figure 2 This is a diagram of the protective mechanism of the utility model in the released state;

[0015] Figure 3 This is a schematic structural diagram of the injection molding machine of the present utility model;

[0016] Figure 4 This is a schematic diagram of the internal structure of the injection molding machine of the present invention.

[0017] In the figure: 1. Main frame; 2. Guide rod; 3. Sliding frame; 4. Barrel; 5. Heater; 6. Feed hopper; 7. Protective frame; 8. Threaded rod; 9. End cover; 10. Rotating cylinder; 11. Connecting arm; 12. Screw; 13. Self-locking motor; 14. Rotating motor; 15. Screw. DETAILED DESCRIPTION

[0018] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments. The embodiments are only used to explain the present invention and do not constitute a limitation on the scope of protection of the present invention.

[0019] according to Figure 1 、 2 As shown in Figures 3 and 4, this embodiment proposes an injection molding machine with a protective function, including a main frame 1, a guide rod 2, a sliding frame 3 and a barrel 4. The top of the main frame 1 is symmetrically fixedly connected with the guide rod 2, the outer side of the guide rod 2 is slidably connected with the sliding frame 3, the interior of the sliding frame 3 is fixedly installed with a barrel 4, an injection molding mechanism is provided inside the barrel 4, one end of the barrel 4 is fixedly installed with a heater 5, the top of the barrel 4 is connected with a feed hopper 6, and a protective mechanism is provided on the main frame 1. When the injection molding machine is in use, plastic particles are injected into the barrel 4 through the feed hopper 6, and the plastic particles inside the barrel 4 are heated by the heater 5 to heat the plastic particles into a liquid state. The liquid plastic is then driven to move toward one end of the barrel 4 through the injection molding mechanism, and the liquid plastic can be automatically injected into the mold, wherein the protective mechanism can separate the top of the feed hopper 6 to prevent other foreign objects from colliding with the machine body or affecting the service life of the machine body due to dust accumulation, and the protective mechanism can automatically release the restriction on the top of the feed hopper 6, which is easy to use.

[0020] The protective mechanism includes a protective frame 7, a rotating cylinder 10 and a connecting arm 11. The top of the main frame 1 is hinged with the protective frame 7, and one side of the main frame 1 is hinged with the rotating cylinder 10. The output end of the rotating cylinder 10 is fixedly connected to the connecting arm 11, and one side of the connecting arm 11 is hinged to one side of the protective frame 7 through a pin shaft. The output end of the rotating cylinder 10 is hinged to the protective frame 7 through the connecting arm 11 and the pin shaft. The output end of the rotating cylinder 10 can drive the protective frame 7 to rotate around the hinge point between it and the main frame 1, so that the top of the protective frame 7 rotates to the top of the feed hopper 6, or rotates out of the top range of the feed hopper 6, so that the top of the protective frame 7 automatically separates or releases the restriction on the top of the feed hopper 6, and the rotating cylinder 10 can also rotate with the protective frame 7 to avoid interfering with the rotation of the protective frame 7.

[0021] The top of the protective frame 7 is threadedly connected to a threaded rod 8, and the bottom end of the threaded rod 8 is rotatably connected to an end cover 9. The diameter of the end cover 9 is equal to the diameter of the top of the feed hopper 6. When the top of the protective frame 7 hovers just above the feed hopper 6, the threaded rod 8 can be screwed to drive the end cover 9 to move downward so that the end cover 9 covers the top of the feed hopper 6 to completely close the top of the feed hopper 6, so that the protection effect is better. When it is necessary to add material to the feed hopper 6, the threaded rod 8 is screwed in the opposite direction to drive the end cover 9 to move upward and separate from the top of the feed hopper 6. After the protective frame 7 drives the end cover 9 to rotate out of the range of the top of the feed hopper 6, the height of the end cover 9 is greater than the height of the top of the feed hopper 6, and will not interfere with the movement of the barrel 4.

[0022] The injection molding mechanism includes a screw 12 and a self-locking motor 13. The screw 12 is rotatably connected to the inside of the barrel 4. The self-locking motor 13 is installed on one side of the sliding frame 3. The output end of the self-locking motor 13 is fixedly connected to one end of the screw 12. One end of the barrel 4 is provided with a conical structure, and one end of the conical structure is provided with an injection port. The output end of the self-locking motor 13 can drive the screw 12 to rotate inside the barrel 4, and the plastic particles are transported to the inside of the barrel 4 through the feed hopper 6. The screw 12 drives the plastic particles to move toward the conical structure. During this period, the plastic particles pass through the range of the heater 5 and are heated into a liquid state. After that, the screw 12 can drive the liquid plastic to continue to move forward and inject the liquid plastic into the mold through the injection port.

[0023] The inner side of the main frame 1 is provided with a driving mechanism, which includes a rotating motor 14 and a screw rod 15. The inner side of the main frame 1 is rotatably connected to the screw rod 15, and a rotating motor 14 is fixedly installed on one side of the main frame 1. The output end of the rotating motor 14 is fixedly connected to one end of the screw rod 15, and one end of the screw rod 15 passes through the bottom of the sliding frame 3 and is threadedly connected thereto. The rotating motor 14 can drive the screw rod 15 to rotate on the inner side of the main frame 1, and the screw rod 15 is threadedly engaged with the bottom end of the sliding frame 3. The guide rod 2 limits the moving trajectory of the sliding frame 3. When the screw rod 15 rotates forward and backward, it can drive the sliding frame 3 to move back and forth in a straight line outside the guide rod 2. The barrel 4 is connected to the sliding frame 3 as a whole, so as to drive the barrel 4 to move back and forth in a straight line, so that the injection port of the barrel 4 is docked with the feed port of the mold, and the liquid plastic is injected into the mold, and then the injection port of the barrel 4 is separated from the feed port.

[0024] The outer sides of the self-locking motor 13 and the rotating motor 14 are both provided with protective shells, and a group of bolts are symmetrically provided on both sides of the protective shells. The two protective shells are detachably connected to the sliding frame 3 and one side of the main frame body 1 respectively through the bolts.

[0025] In this injection molding machine, the output end of the rotating cylinder 10 is hinged to the protective frame 7 through the connecting arm 11 and the pin shaft. The output end of the rotating cylinder 10 can drive the protective frame 7 to rotate around the hinge point between it and the main frame 1, so that the top of the protective frame 7 rotates to the top of the feed hopper 6, or rotates out of the top range of the feed hopper 6, so that the top of the protective frame 7 automatically separates or releases the restriction on the top of the feed hopper 6. When the top of the protective frame 7 hovers just above the feed hopper 6, the threaded rod 8 can be screwed to drive the end cover 9 to move downward, so that the end cover 9 covers the top of the feed hopper 6, so as to completely seal the top of the feed hopper 6, so as to prevent other foreign objects from colliding with the machine body or dust accumulation from affecting the service life of the machine body, and the protective mechanism can automatically release the restriction on the top of the feed hopper 6, which is easy to use.

[0026] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in this invention is defined by the appended claims and their equivalents.

Claims

1. An injection molding machine with a protective function, comprising a main frame (1), a guide rod (2), a sliding frame (3) and a barrel (4), characterized in that: The top of the main frame (1) is symmetrically fixedly connected to a guide rod (2), the outer side of the guide rod (2) is slidably connected to a sliding frame (3), a barrel (4) is fixedly installed inside the sliding frame (3), an injection molding mechanism is provided inside the barrel (4), a heater (5) is fixedly installed at one end of the barrel (4), and a feed hopper (6) is connected to the top of the barrel (4), and a protective mechanism is provided on the main frame (1); The protection mechanism comprises a protection frame (7), a rotating cylinder (10) and a connecting arm (11); the top of the main frame (1) is hingedly connected to the protection frame (7); one side of the main frame (1) is hingedly connected to the rotating cylinder (10); the output end of the rotating cylinder (10) is fixedly connected to the connecting arm (11); and one side of the connecting arm (11) is hingedly connected to one side of the protection frame (7) via a pin.

2. The injection molding machine with a protective function according to claim 1, characterized in that: The top of the protective frame (7) is threadedly connected to a threaded rod (8), and the bottom end of the threaded rod (8) is rotatably connected to an end cover (9), and the diameter of the end cover (9) is equal to the diameter of the top of the feed hopper (6).

3. The injection molding machine with a protective function according to claim 1, characterized in that: The injection molding mechanism comprises a screw (12) and a self-locking motor (13); the interior of the barrel (4) is rotatably connected to the screw (12); a self-locking motor (13) is installed on one side of the sliding frame (3); and an output end of the self-locking motor (13) is fixedly connected to one end of the screw (12).

4. The injection molding machine with a protective function according to claim 3, characterized in that: One end of the barrel (4) is provided with a conical structure, and one end of the conical structure is provided with an injection port, and the inner side of the main frame (1) is provided with a driving mechanism.

5. The injection molding machine with a protective function according to claim 4, characterized in that: The driving mechanism comprises a rotating motor (14) and a screw rod (15); the screw rod (15) is rotatably connected to the inner side of the main frame (1); the rotating motor (14) is fixedly mounted on one side of the main frame (1); the output end of the rotating motor (14) is fixedly connected to one end of the screw rod (15); and one end of the screw rod (15) passes through the bottom of the sliding frame (3) and is threadedly connected thereto.

6. The injection molding machine with a protective function according to claim 5, characterized in that: The outer sides of the self-locking motor (13) and the rotating motor (14) are both provided with protective shells, and a group of bolts are symmetrically provided on both sides of the protective shells. The two protective shells are detachably connected to the sliding frame (3) and one side of the main frame (1) respectively through the bolts.

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