CN113547689A

CN113547689A - An injection molding device for machining

Info

Publication number: CN113547689A
Application number: CN202110881943.XA
Authority: CN
Inventors: 丁娇; 陈阳; 柯晨铖; 葛兴亮
Original assignee: Anhui Institute of Information Engineering
Current assignee: Anhui Institute of Information Engineering
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2021-10-26

Abstract

The invention discloses an injection molding device for machining, which relates to the technical field of injection molding and includes a mounting frame, a mounting frame, a mold, an H-shaped sliding rod, an injection gun, a motor, an intermittent driving mechanism, a resettable rotating mechanism and an opening and closing assembly The invention has simple structure and high degree of automation. During the rotation of the intermittent driving mechanism, the intermittent opening or closing of the mold is realized through the opening and closing components, and when the mold is closed, the injection gun is driven along the mold by the resettable rotating mechanism. The injection port moves at a uniform speed, so that the material in the injection gun is injected into the mold at a uniform speed, which solves the problem that single-hole injection may cause the material to not completely fill the entire mold, resulting in molding failure. The muzzle of the injection gun is quickly moved into the limit slot to avoid waste of materials. On the other hand, it can keep the material in the mold for a period of time, which is convenient for the molding of the material in the mold.

Description

Injection molding device for machining

Technical Field

The invention belongs to the technical field of injection molding, and particularly relates to an injection molding device for machining.

Background

Injection molding, also known as injection molding, is a method of molding by injection and molding. The injection molding process can be roughly divided into the following 6 steps of mold closing, glue injection, pressure maintaining, cooling, mold opening and product taking out.

The existing injection molding device mostly adopts single-hole injection, for a long-strip-shaped mold, on one hand, the injection time is long, the production efficiency is low, on the other hand, the single-hole injection can cause the material to be incapable of being completely filled in the whole mold, and meanwhile, in the injection process, the material in the mold can be cooled and molded when the mold is not fully filled, so that the molding failure is caused.

Disclosure of Invention

The invention aims to provide an injection molding device for machining, which aims to overcome the defects caused in the prior art.

An injection molding device for machining comprises a mounting frame, a mounting frame is mounted on the mounting frame through a mounting column, a mould is arranged in the mounting frame, an H-shaped sliding rod is connected on the mounting frame in a sliding manner, an injection molding gun is arranged on the H-shaped sliding rod, the mounting rack is provided with a motor, an intermittent driving mechanism, a resettable rotating mechanism and an opening and closing assembly, the opening and closing assembly is used for realizing the opening or closing of the mold, the resettable rotating mechanism is used for realizing the movement of the injection molding gun, the motor drives the intermittent driving mechanism to rotate, the intermittent driving mechanism periodically drives the mold to open or close through the opening and closing assembly in the rotating process, and in the closed state of the mold, meanwhile, the intermittent driving mechanism drives the resettable rotating mechanism to rotate in the intermittent period from the closed state to the open state of the mold, and the resettable rotating mechanism automatically resets after rotating.

Preferably, the intermittent driving mechanism comprises two gears III which are rotatably connected with the mounting frame, the two gears III are mutually meshed, one gear III is coaxially fixed with the output shaft of the motor, a circular turntable is coaxially arranged on the gear III, the side wall of the round turntable is provided with an incomplete gear, the round turntable is provided with a first annular clamping groove and a second annular clamping groove, a communicating part is arranged between the first annular clamping groove and the second annular clamping groove, a first rotating guide block and a second rotating guide block which correspond to the communicating part are rotatably connected on the circular turntable, the first rotary guide block and the second rotary guide block are both connected with the circular turntable through a second torsion spring, the first rotary guide block is matched with the annular clamping groove, the rotating guide block II is matched with the annular clamping groove I, and a limiting rod I matched with the rotating guide block I and a limiting rod II matched with the rotating guide block are fixedly installed on the circular turntable.

Preferably, the opening and closing assembly comprises a push-pull rod and a guide rod in sliding connection with the mounting frame, one end of the guide rod is connected with the die, the other end of the guide rod is connected with a U-shaped connecting rod, one end of the push-pull rod is fixedly connected with the U-shaped connecting rod, and the other end of the push-pull rod is provided with a limiting protrusion matched with the first annular clamping groove or the second annular clamping groove.

Preferably, the slewing mechanism that can reset includes the installation piece with mounting bracket sliding connection, it is connected with the pivot to rotate on the installation piece, fixedly connected with gear one and gear two in the pivot, the push-and-pull rod with the pivot is rotated and is connected, torsional spring one has been cup jointed in the pivot, gear one is connected with the mounting bracket through torsional spring one, gear one incomplete gear cooperation, be equipped with the rack on the H shape slide bar, gear two with the rack cooperation.

Preferably, the installing frame is equipped with the muzzle complex spacing groove with the rifle of moulding plastics, be equipped with the conveyer belt that is used for carrying the shaping back product between mounting bracket and the installing frame, carry and be located the mould under.

Preferably, the mounting frame is provided with a guide block, the push-pull rod is connected with the guide block in a sliding manner, and the support legs of the mounting frame are provided with foot supports.

The invention has the advantages that: (1) the structure is simple, the automation degree is high, the motor drives the intermittent driving mechanism to rotate, in the rotating process of the intermittent driving mechanism, the intermittent opening or closing of the mold is realized through the opening and closing assembly, and in the closed state of the mold, the intermittent driving mechanism drives the H-shaped sliding rod and the injection molding gun to move at a constant speed along the injection port of the mold through the resettable rotating mechanism, so that the material in the injection molding gun is injected into the mold at a constant speed, the problem that the whole mold cannot be completely filled with the material due to single-hole injection and the molding fails is solved, meanwhile, after the injection molding is finished, on one hand, the muzzle of the injection molding gun can be quickly moved into the limiting groove to avoid the waste of the material, on the other hand, the material can remain one end time in the mold to facilitate the molding of the material in the mold, and the intermittent driving mechanism can not drive the rotation of the rotating resetting mechanism to rotate when the mold is opened, therefore, the muzzle of the injection molding gun is always positioned in the limiting groove in the period of time, and the waste of materials is further avoided;

(2) through setting up the conveyer belt, can be convenient for shift out the shaping region with the product after the shaping to be convenient for the collection of shaping product.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the intermittent drive mechanism of the present invention.

Fig. 3 is a schematic structural diagram of the resettable rotating mechanism of the present invention.

Fig. 4 is a schematic structural view of the opening and closing assembly of the present invention.

Fig. 5 is a schematic structural view of the installation frame and the H-shaped sliding rod in the present invention.

Wherein, 1-a mounting frame, 101-supporting legs, 102-foot supports, 103-guide sliding grooves, 2-mounting columns, 3-a mounting frame, 301-limit grooves, 302-limit sliding grooves, 4-a conveying belt, 5-a mold, 51-an injection molding port, 6-an opening and closing component, 601-a guide rod, 602-a U-shaped connecting rod, 603-a push-pull rod, 604-limit protrusions, 7-a motor, 8-an intermittent driving mechanism, 801-a circular turntable, 802-an incomplete gear, 803-a ring clamping groove I, 804-a ring clamping groove II, 805-a rotating guide block I, 806-a rotating guide block II, 807-a limit rod I, 808-a limit rod II, 809-a gear III, 9-a resettable rotating mechanism and 901-a mounting block, 902-gear I, 903-torsion spring I, 904-rotating shaft, 905-gear II, 10-injection molding gun, 11-H-shaped sliding rod, 111-rack and 12-guide block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 5, an injection molding device for machining includes a mounting frame 1, a mounting frame 3 is mounted on the mounting frame 1 through a mounting column 2, a mold 5 is arranged in the mounting frame 3, the mold 5 includes two movable molds, openings are arranged on the movable molds, and when the two movable molds are closed, an injection opening 51 is formed by the two openings, a limit chute 302 is arranged on the mounting frame 3, an H-shaped sliding rod 11 is slidably connected in the limit chute 302, an injection gun 10 is arranged on the H-shaped sliding rod 11, a gun mouth of the injection gun 10 is matched with the injection opening 51 of the mold 5, a motor 7, an intermittent driving mechanism 8, a resettable rotating mechanism 9 and an opening and closing assembly 6 are arranged on the mounting frame 1, the opening and closing assembly 6 is used for opening or closing the mold 5, the resettable rotating mechanism 9 is used for moving the injection gun 10, the motor 7 drives the intermittent drive mechanism 8 to rotate, the intermittent drive mechanism 8 periodically drives the mold 5 to open or close through the opening and closing assembly 6 in the rotating process, and under the condition that the mold 5 is closed, the intermittent drive mechanism 8 drives the resettable rotating mechanism 9 to rotate in the intermittent period from the closed state to the open state of the mold 5, and the resettable rotating mechanism 9 automatically resets after rotating.

In this embodiment, the intermittent drive mechanism 8 includes two gears three 809 rotatably connected to the mounting frame 1, the two gears three 809 are engaged with each other, one of the gears three 809 is coaxially fixed to the output shaft of the motor 7, a circular turntable 801 is coaxially disposed on the gear three 809, an incomplete gear 802 is disposed on a side wall of the circular turntable 801, a first annular clamping groove 803 and a second annular clamping groove 804 are disposed on the circular turntable 801, a communicating portion is disposed between the first annular clamping groove 803 and the second annular clamping groove 804, a first rotation guide block 805 and a second rotation guide block 806 corresponding to the communicating portion are rotatably connected to the circular turntable 801, the first rotation guide block 805 and the second rotation guide block 806 are both connected to the circular turntable 801 through a second torsion spring, the first rotation guide block 805 is matched with the second annular clamping groove 804, and the second rotation guide block 806 is matched with the first annular clamping groove 803, a first limit rod 807 matched with a first rotary guide block 805 and a second limit rod 808 matched with a second rotary guide block 806 are fixedly installed on the circular rotary table 801, the motor 7 rotates to drive the gear three 809 to rotate anticlockwise, the gear three 809 drives the circular rotary table 801 to rotate anticlockwise, under normal conditions, the first rotary guide block 805 is in contact fit with the first limit rod 807 under the action of the second torsion spring, the second rotary guide block 806 is in contact fit with the second limit rod 808 under the action of the second torsion spring, when the limit bulge 604 in the opening and closing assembly 6 is positioned in the second annular clamping groove 804, the mold 5 is in a mold closing state under the action of the opening and closing assembly 6, the first gear 902 in the resettable rotary assembly can be meshed with the incomplete gear 802, the second gear 905 in the resettable rotary assembly is meshed with the rack 111, the resettable rotary mechanism 9 is driven to rotate by the incomplete gear 802 during one-circle rotation of the circular rotary table 801, the resettable rotating mechanism 9 automatically resets after rotating, when the limiting protrusion 604 reaches the communicating part, the limiting protrusion 604 drives the first rotating guide block 805 to rotate, the first rotating guide block 805 is switched into the first annular clamping groove 803 through the first rotating guide block 805, then the first rotating guide block 805 resets through the second torsion spring, at the moment, the mold 5 is in a mold opening state under the action of the opening and closing assembly 6, the first gear 902 in the resetting rotating assembly is not meshed with the incomplete gear 802, and the second gear 905 in the resettable rotating assembly is not meshed with the rack 111.

In this embodiment, the opening and closing assembly 6 includes a push-pull rod 603 and a guide rod 601 slidably connected to the mounting frame 3, one end of the guide rod 601 is connected to the mold 5, the other end of the guide rod 601 is connected to a U-shaped connecting rod 602, one end of the push-pull rod 603 is fixedly connected to the U-shaped connecting rod 602, the other end of the push-pull rod 603 is provided with a limit protrusion 604 matching with the first annular slot 803 or the second annular slot 804, the circular turntable 801 rotates to drive the limit protrusion 604 to switch in the first annular slot 803 or the second annular slot 804, when the limit protrusion 604 slides in the first annular slot 803, the push-pull rod 603 is far away from the axis of the circular turntable 801, the push-pull rod 603 pushes two movable molds to separate through the U-shaped connecting rod 602 and the guide rod 601, so that the mold 5 is opened to facilitate dropping of a molded product, when the limit protrusion 604 slides in the second annular slot 804, the push-pull rod 603 is close to the axis of the circular turntable 801, the U-shaped connecting rod 602 and the guide rod 601 push the two movable dies to be in close contact, so that die assembly is realized.

In this embodiment, the resettable rotating mechanism 9 includes an installation block 901, the installation block 901 slides in the guide chute 103 on the installation block 1, the installation block 901 is rotatably connected with a rotating shaft 904, the rotating shaft 904 is fixedly connected with a first gear 902 and a second gear 905, the push-pull rod 603 is rotatably connected with the rotating shaft 904, the rotating shaft 904 is sleeved with a first torsion spring 903, the first gear 902 is connected with the installation block 1 through the first torsion spring 903, the first gear 902 is matched with the incomplete gear 802, the H-shaped sliding rod 11 is provided with a rack 111, the second gear 905 is matched with the rack 111, when the limit protrusion 604 is switched to slide in the second annular clamping slot 804, the mold 5 is in a mold closing state, the push-pull rod 603 pulls the rotating shaft 904 and the installation block 901 to be close to the axis of the circular turntable 801, the incomplete gear 802 on the circular turntable 801 drives the rotating shaft 904 to rotate through the first gear 902, thereby enabling the second gear 905 to rotate, the second gear 905 rotates to drive the H-shaped sliding rod 11 to slide on the mounting frame 3 at a constant speed through the rack 111, the H-shaped mounting rod slides at a constant speed to drive the gun port of the injection gun 10 to slide on the injection port 51 of the mold 5 at a constant speed, materials are injected into the mold 5 at a constant speed, when the incomplete gear 802 is separated from the first gear 902, the gun port of the injection gun 10 just slides to the tail end of the injection port 51, the rotating shaft 904 is quickly reset under the action of the first torsion spring 903, one-time injection molding is completed, after the injection molding is completed, the limiting protrusion 604 still slides in the second annular clamping groove 804 for a period of time, the materials in the mold 5 are molded in the period of time, when the limiting protrusion 604 is switched into the second annular clamping groove 804, the mold 5 is switched to a mold opening state under the action of the opening and closing assembly 6, so that the molded product falls off, and the push-pull rod 603 pulls the rotating shaft 904 away from the circular turntable 801, the first gear 902 is not meshed with the incomplete gear 802, the incomplete gear 802 cannot be driven to rotate, the second gear 905 rotated by the reset component is not meshed with the rack 111, and the second gear 905 cannot drive the H-shaped sliding rod 11 to move through the rack 111 and the injection gun 10 cannot inject materials.

In this embodiment, installing frame 3 is equipped with and moulds plastics rifle 10's muzzle complex spacing groove 301, rotates reset block and resets the back, and the muzzle of the rifle 10 of moulding plastics cooperates with spacing groove 301, can prevent the outflow of the material in the rifle 10 of moulding plastics, be equipped with the conveyer belt 4 that is used for carrying the product behind the shaping between mounting bracket 1 and the installing frame 3, carry and be located mould 5 under, conveyer belt 4 can conveniently be located the region of moulding plastics with the product transportation department after the injection moulding, the collection of the follow-up product of being convenient for.

In this embodiment, the mounting frame 1 is provided with a guide block 12, the push-pull rod 603 is slidably connected to the guide block 12, the support legs 101 of the mounting frame 1 are provided with foot supports 102, the guide block 12 can support and limit the push-pull rod 603, and the foot supports 102 can improve the stability of the device during operation.

The working process of the invention is as follows: starting the motor 7, driving the gear three 809 to rotate counterclockwise by the rotation of the motor 7, driving the circular turntable 801 to rotate counterclockwise by the gear three 809, when the limiting protrusion 604 in the opening and closing assembly 6 is located on the second annular clamping groove 804 to slide, at this time, the push-pull rod 603 is close to the axis of the circular turntable 801, the U-shaped connecting rod 602 and the guide rod 601 push the two movable molds to be in close contact, the mold 5 is in a mold closing state, meanwhile, the push-pull rod 603 pulls the rotating shaft 904 and the mounting block 901 to be close to the axis of the circular turntable 801, the incomplete gear 802 on the rotation of the circular turntable 801 drives the rotating shaft 904 to rotate through the first gear 902, so as to enable the second gear 905 to rotate, the second gear 905 rotates to drive the H-shaped sliding rod 11 to slide on the mounting frame 3 at a constant speed by the rack 111, the H-shaped mounting rod slides at a constant speed to drive the gun mouth of the injection gun 10 to slide on the injection port 51 of the mold 5 at a constant speed, so as to inject the material into the mold 5 at a constant speed, when the incomplete gear 802 is separated from the first gear 902, the muzzle of the gun of the injection molding gun just slides to the end of the injection molding port 51, the rotating shaft 904 is quickly reset under the action of the first torsion spring 903, one-time injection molding is completed, the muzzle of the injection molding gun 10 slides into the limiting groove 301 on the mounting frame 3, the limiting protrusion 604 still slides in the second annular clamping groove 804 for a period of time, the material in the mold 5 is molded in the period of time, when the limiting protrusion 604 reaches the communicating part, the limiting protrusion 604 drives the first rotating guide block 805 to rotate, the first rotating guide block 805 is switched into the first annular clamping groove 803 through the first rotating guide block 805, then the first rotating guide block 805 is reset through the second torsion spring, the push-pull rod 603 is far away from the axis of the circular turntable 801, the push-pull rod 603 pushes the two movable molds to be separated through the U-shaped connecting rod 602 and the guide rod 601, so that the mold 5 is opened, and the molded product can conveniently fall to the conveying belt 4, and moving out of an injection molding area, simultaneously pulling the rotating shaft 904 away from the circular turntable 801 by the push-pull rod 603, wherein the first gear 902 is not meshed with the incomplete gear 802, the incomplete gear 802 cannot be driven to rotate, the second gear 905, which is rotated by the reset assembly, is not meshed with the rack 111, the second gear 905 cannot drive the H-shaped sliding rod 11 through the rack 111 to move the injection molding gun 10, so that the material cannot be injected, and when the limiting protrusion 604 is switched to the second annular clamping groove 804 to slide, the next injection molding is performed.

The invention has simple structure and high automation degree, the motor 7 drives the intermittent driving mechanism 8 to rotate, the intermittent driving mechanism 8 realizes intermittent opening or closing of the mould 5 through the opening and closing assembly 6 in the rotating process of the intermittent driving mechanism 8, and the intermittent driving mechanism drives the H-shaped sliding rod and the injection gun 10 to move at a constant speed along the injection port 51 of the mould 5 through the resettable rotating mechanism 9 in the closed state of the mould 5, thereby injecting the material in the injection gun 10 into the mould 5 at a constant speed, solving the problem that the material can not completely fill the whole mould 5 due to single-hole injection and causing forming failure, and simultaneously, after the injection is finished, on one hand, the gun port of the injection gun 10 can be quickly moved into the limiting groove 301 to avoid waste of the material, on the other hand, one end of time can be reserved in the mould 5 for the forming of the material in the mould 5, and the mould 5 is opened, intermittent type nature actuating mechanism rotates and can not drive and rotate canceling release mechanical system and rotate to can make the muzzle of the rifle 10 of moulding plastics lie in spacing groove 301 all the time in this period, further avoid the waste of material, through setting up conveyer belt 4, can be convenient for shift out the shaping region with the product after the shaping, thereby be convenient for the collection of shaping product.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The utility model provides an injection moulding device for machining which characterized in that: including mounting bracket (1), install installing frame (3) through erection column (2) on mounting bracket (1), be equipped with mould (5) in installing frame (3), sliding connection has H shape slide bar (11) on installing frame (3), be equipped with on the H shape slide bar (11) and mould plastics rifle (10), be equipped with motor (7), intermittent type actuating mechanism (8), slewing mechanism (9) that can reset and subassembly (6) that opens and shuts on mounting bracket (1), subassembly (6) that opens and shuts is used for realizing opening or closing of mould (5), slewing mechanism (9) that can reset is used for realizing the removal of moulding plastics rifle (10), motor (7) drive intermittent type actuating mechanism (8) rotate, periodic passing through of the in-process of intermittent type actuating mechanism (8) pivoted subassembly (6) that opens and shuts drive mould (5) and open or close, and under the state that the mould (5) is closed, the intermittent driving mechanism (8) drives the resettable rotating mechanism (9) to rotate in the intermittent period from the closed state to the open state of the mould (5), and the resettable rotating mechanism (9) automatically resets after rotating.

2. An injection molding apparatus for machining according to claim 1, wherein: the intermittent driving mechanism (8) comprises two third gears (809) rotatably connected with the mounting rack (1), the two third gears (809) are meshed with each other, one third gear (809) is coaxially fixed with an output shaft of the motor (7), a circular rotating disc (801) is coaxially arranged on the third gear (809), an incomplete gear (802) is arranged on the side wall of the circular rotating disc (801), a first annular clamping groove (803) and a second annular clamping groove (804) are arranged on the circular rotating disc (801), a communicating part is arranged between the first annular clamping groove (803) and the second annular clamping groove (804), a first rotating guide block (805) and a second rotating guide block (806) corresponding to the communicating part are rotatably connected to the circular rotating disc (801), and the first rotating guide block (805) and the second rotating guide block (806) are both connected with the circular rotating disc (801) through a second torsion spring, the first rotating guide block (805) is matched with the second annular clamping groove (804), the second rotating guide block (806) is matched with the first annular clamping groove (803), and a first limiting rod (807) matched with the first rotating guide block (805) and a second limiting rod (808) matched with the second rotating guide block (12) are fixedly installed on the circular rotating disc (801).

3. An injection molding apparatus for machining according to claim 2, wherein: the opening and closing assembly (6) comprises a push-pull rod (603) and a guide rod (601) which is connected with the mounting frame (3) in a sliding mode, one end of the guide rod (601) is connected with the mold (5), the other end of the guide rod is connected with a U-shaped connecting rod (602), one end of the push-pull rod (603) is fixedly connected with the U-shaped connecting rod (602), and the other end of the push-pull rod is provided with a limiting protrusion (604) which is matched with the first annular clamping groove (803) or the second annular clamping groove (804).

4. An injection molding apparatus for machining according to claim 3, wherein: but slewing mechanism (9) resets include installation piece (901) with mounting bracket (1) sliding connection, it is connected with pivot (904) to rotate on installation piece (901), fixedly connected with gear (902) and gear two (905) on pivot (904), push-and-pull rod (603) with pivot (904) rotate and are connected, pivot (904) are gone up and have been cup jointed torsional spring one (903), gear one (902) are connected with mounting bracket (1) through torsional spring one (903), gear one (902) incomplete gear (802) cooperation, be equipped with rack (111) on H-shaped slide bar (11), gear two (905) with rack (111) cooperation.

5. An injection molding apparatus for machining according to claim 4, wherein: installing frame (3) are equipped with and mould plastics muzzle complex spacing groove (301) of rifle (10), be equipped with between installing frame (1) and installing frame (3) and be used for carrying conveyer belt (4) of shaping back product, carry and be located mould (5) under.

6. An injection molding apparatus for machining according to claim 5, wherein: the mounting rack (1) is provided with a guide block (12), the push-pull rod (603) is connected with the guide block (12) in a sliding mode, and the support legs (101) of the mounting rack (1) are provided with foot supports (102).