CN216831957U

CN216831957U - Injection molding machine with automatic demolding function and used for machining parts with internal threads

Info

Publication number: CN216831957U
Application number: CN202122137026.9U
Authority: CN
Inventors: 黄飞龙
Original assignee: Shenyang Xinyang Polyurethane Technology Co ltd
Current assignee: Shenyang Xinyang Polyurethane Technology Co ltd
Priority date: 2021-09-06
Filing date: 2021-09-06
Publication date: 2022-06-28
Anticipated expiration: 2031-09-06

Abstract

The invention relates to the technical field of new energy automobile accessory production, and discloses an injection molding machine with an automatic demolding function and used for machining an internal thread part. This injection molding machine with automatic drawing of patterns function is used for processing female screw part drives the third connecting rod through the base and removes, drives first connecting rod and removes left, and first connecting rod drives the bed die and removes, and the bed die drives the pinion and removes, and the pinion drives the pivot rotation through the rack on the mould box, and the pivot drives the thimble rotation, and the rotatory in-process of thimble breaks away from with the part, realizes the automatic drawing of patterns function of part, improves production efficiency, reduces the operation danger.

Description

Injection molding machine with automatic demolding function and used for machining parts with internal threads

Technical Field

The invention relates to the technical field of new energy automobile accessory production, in particular to an injection molding machine with an automatic demolding function and used for processing parts with internal threads.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. The injection moulding machine can heat plastics, and apply high pressure to molten plastics to make them be injected into mould cavity, and its working principle is similar to that of injection syringe for injection, and it utilizes the thrust of screw (or plunger) to inject the plasticized molten plastics into the closed mould cavity, and after solidification and forming, the injection mould is a tool for producing plastic product, also is a tool for giving complete structure and accurate size to the plastic product. The injection mold consists of a movable mold and a fixed mold, wherein the movable mold is arranged on a movable template of the injection molding machine, and the fixed mold is arranged on a fixed template of the injection molding machine. During injection molding, the movable mold and the fixed mold are closed to form a pouring system and a cavity, plastic products are molded in the cavity, and the movable mold and the fixed mold are separated during mold opening so as to take out the plastic products.

The injection molding workpiece is often required to be processed with an internal thread structure so as to be conveniently connected with other parts. However, the internal thread is difficult to separate from the mold after injection molding, manual demolding is needed, the demolding is time-consuming and labor-consuming, the demolding efficiency is low, and automatic demolding cannot be realized; when having higher requirement to the mould design, the drawing of patterns must be in time and the mould temperature is high, easily causes the injury to operating personnel, and the operation risk is high, and production efficiency is low.

Disclosure of Invention

Technical problem to be solved

Aiming at the defects of the prior art, the invention provides the injection molding machine with the automatic demolding function for processing the parts with the internal threads, which has the advantages of automatic demolding, high production efficiency, safe operation and the like, and solves the problems that the conventional equipment needs manual demolding, the production efficiency is low and the operation risk is high.

(II) technical scheme

In order to solve the technical problems, the invention provides the following technical scheme: an injection molding machine with an automatic demolding function and used for machining parts with internal threads comprises a machine body, wherein a guide rail is fixedly connected to the right side of the top of the machine body, a sliding block is connected to the top of the guide rail in a sliding mode, a base is fixedly connected to the top of the sliding block, an injection cylinder body is fixedly connected to the top of the base, a hydraulic cylinder is fixedly connected to the right side of the injection cylinder body, a piston is movably connected to the inside of the hydraulic cylinder, a motor is fixedly connected to the right end of the piston, a screw rod is fixedly connected to the left end of the piston, a check valve is fixedly connected to the left end of the screw rod, a hopper is fixedly connected to the right side of the top of the injection cylinder body, a heater is fixedly connected to the inside of the injection cylinder body, a machine frame is fixedly connected to the left side of the top of the machine frame, a mold box body is fixedly connected to the top of the machine frame, a female mold is slidably connected to the bottom of the mold box body, a rotating shaft is movably connected to the bottom of the female mold, a pinion is fixedly connected to the bottom of the rotating shaft, a first bevel gear is fixedly connected to the top of the rotating shaft, the right side of the female die is movably connected with a thimble, the left end of the thimble is fixedly connected with a second bevel gear, the right side of the interior of the die box body is fixedly connected with a male die, the middle part of the top of the lathe bed is fixedly connected with a support frame, the top of the support frame is hinged with a second connecting rod, the top of the second connecting rod is hinged with a first connecting rod, and the bottom of the second connecting rod is hinged with a third connecting rod.

Preferably, the bottom of the die box body is provided with a hole matched with the pinion for mounting the pinion, so that the pinion can move left and right conveniently.

Preferably, the bottom of the die box body is provided with a tooth form matched with the pinion for driving the pinion to rotate.

Preferably, the first bevel gear and the second bevel gear are engaged with each other for transmitting the movement of the pinion to the thimble.

Preferably, the right end of the thimble is provided with a thread matched with the part for processing qualified parts.

Preferably, a groove matched with the third connecting rod is formed in the left side of the base and used for installing the third connecting rod, and the third connecting rod can be conveniently moved up and down.

Preferably, the bottom of the female die is provided with a boss matched with the first connecting rod for mounting the first connecting rod.

Preferably, the distance between the position where the second connecting rod is hinged to the support frame and the top of the second connecting rod is larger than the distance between the position where the second connecting rod is hinged to the support frame and the bottom of the second connecting rod, and the distance is used for amplifying the displacement difference between the base and the female die, so that the injection cylinder and the female die can be in place simultaneously.

(III) advantageous effects

Compared with the prior art, the invention provides an injection molding machine with an automatic demolding function for processing parts with internal threads, which has the following beneficial effects:

1. the injection molding machine with the automatic demolding function for processing the internal thread parts drives the injection cylinder body to move rightwards through the base to move rightwards, the injection cylinder body moves rightwards and is far away from the mold box body to stop injection, the third connecting rod is driven to move rightwards in the rightwards process of the base, the bottom of the second connecting rod is driven to move rightwards in the rightwards process of the third connecting rod, the second connecting rod rotates anticlockwise under the action of the support frame, the first connecting rod is driven to move leftwards while rotating anticlockwise of the second connecting rod, the first connecting rod drives the female mold to move leftwards, the female mold drives the pinion to move leftwards during moving, the pinion contacts with the rack on the mold box body during moving leftwards, so as to drive the pinion to rotate, the pinion rotates to drive the rotating shaft to rotate, the rotating shaft is meshed with the bevel gear to drive the thimble to rotate, and the parts cannot rotate due to the limitation, therefore, the ejector pin is gradually separated from the part in the rotating process, when the female die moves to the left, the part is thoroughly separated from the ejector pin to finish processing, the automatic demoulding function of the part is realized through the process, the production efficiency is improved, and the operation danger is reduced.

2. The injection molding machine with the automatic demolding function for processing the internal thread part drives the third connecting rod to move leftwards by moving the base leftwards, the third connecting rod drives the bottom of the second connecting rod to move leftwards, the second connecting rod rotates clockwise under the action of the support frame, the first connecting rod is driven to move rightwards by rotating the second connecting rod clockwise, the female mold is driven to move rightwards by moving the first connecting rod in the process of moving the right direction, the injection cylinder body is driven to move leftwards by moving the base leftwards, when the injection cylinder body moves rightwards to be in place, the female mold moves rightwards to be in place and contacts with the male mold to form a cavity, when the female mold and the injection cylinder body are in place, the motor is started to drive the screw rod to rotate, raw materials melted by heating of the heater in the injection cylinder body are extruded and injected into the mold to complete the injection molding process in the process of the injection molding, and the continuous processing after the automatic demolding is realized, the production efficiency is improved.

Drawings

FIG. 1 is a front view in elevation of the present invention;

FIG. 2 is a left side view of the present invention;

FIG. 3 is an enlarged view of the structure of FIG. 1A according to the present invention;

FIG. 4 is an enlarged view of the structure of FIG. 1B according to the present invention.

In the figure: 1. a bed body; 2. a guide rail; 3. a slider; 4. a base; 5. an injection cylinder; 6. a hydraulic cylinder; 7. a piston; 8. a motor; 9. a screw; 10. a check valve; 11. a hopper; 12. a heater; 13. a frame; 14. a mold box body; 15. a female die; 16. a rotating shaft; 17. a pinion gear; 18. a first bevel gear; 19. a thimble; 20. a second bevel gear; 21. a male mold; 22. a support frame; 23. a second link; 24. a first link; 25. a third link.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an injection molding machine with automatic demolding function for processing internal thread parts comprises a machine body 1, a guide rail 2 is fixedly connected to the right side of the top of the machine body 1, a slide block 3 is slidably connected to the top of the guide rail 2, a base 4 is fixedly connected to the top of the slide block 3, an injection cylinder 5 is fixedly connected to the top of the base 4, a hydraulic cylinder 6 is fixedly connected to the right side of the injection cylinder 5, a piston 7 is movably connected to the inside of the hydraulic cylinder 6, a motor 8 is fixedly connected to the right end of the piston 7, a screw 9 is fixedly connected to the left end of the piston 7, a check valve 10 is fixedly connected to the left end of the screw 9, a hopper 11 is fixedly connected to the right side of the top of the injection cylinder 5, a heater 12 is fixedly connected to the left side of the top of the machine body 1, a mold box 14 is fixedly connected to the top of the machine frame 13, a female mold 15 is slidably connected to the bottom of the mold box 14, the bottom of the female die 15 is provided with a boss matched with the first connecting rod 24 and used for installing the first connecting rod 24, the bottom of the female die 15 is movably connected with a rotating shaft 16, the bottom of the rotating shaft 16 is fixedly connected with a pinion 17, the bottom of the die box body 14 is provided with a hole matched with the pinion 17 and used for installing the pinion 17, the pinion 17 is convenient to move left and right, and the bottom of the die box body 14 is provided with a tooth form matched with the pinion 17 and used for driving the pinion 17 to rotate.

The top of the rotating shaft 16 is fixedly connected with a first bevel gear 18, the right side of the female die 15 is movably connected with a thimble 19, the right end of the thimble 19 is provided with a thread matched with a part for processing qualified parts, the left end of the thimble 19 is fixedly connected with a second bevel gear 20, the first bevel gear 18 and the second bevel gear 20 are mutually meshed for transmitting the motion of the pinion 17 to the thimble 19, the right side in the die box 14 is fixedly connected with a male die 21, the middle part of the top of the machine body 1 is fixedly connected with a support frame 22, the top of the support frame 22 is hinged with a second connecting rod 23, the distance between the hinged position of the second connecting rod 23 and the support frame 22 and the top of the second connecting rod 23 is larger than the distance between the hinged position of the second connecting rod 23 and the bottom of the second connecting rod 23, and the displacement difference between the base 4 and the female die 15 is amplified, so that the injection cylinder body 5 and the female die 15 can be in place simultaneously, the top of the second connecting rod 23 is hinged with a first connecting rod 24, and the bottom of the second connecting rod 23 is hinged with a third connecting rod 25, the left side of the base 4 is provided with a groove matched with the third connecting rod 25 for installing the third connecting rod 25 and facilitating the up-and-down movement of the third connecting rod 25.

The working principle is as follows: the base 4 moves rightwards to drive the injection cylinder 5 to move rightwards, the injection cylinder 5 moves rightwards to be far away from the die box body 14 to stop injection, the third connecting rod 25 moves rightwards in the rightwards process of the base 4, the bottom of the second connecting rod 23 moves rightwards in the rightwards process of the third connecting rod 25, the second connecting rod 23 rotates anticlockwise under the action of the supporting frame 22, the first connecting rod 24 moves leftwards while the second connecting rod 23 rotates anticlockwise, the first connecting rod 24 drives the female die 15 to move leftwards, the pinion 17 moves leftwards during the leftward movement of the female die 15, the pinion 17 contacts a rack on the die box body 14 to further drive the pinion 17 to rotate, the pinion 17 rotates to drive the rotating shaft 16 to rotate, the rotating shaft 16 drives the thimble 19 to rotate through the meshing of the bevel gears, and the thimble 19 gradually separates from the parts during the rotation because the parts are restricted from rotating, when the female die 15 moves to the left, the part is completely separated from the ejector pin 19 to complete processing, the automatic demoulding function of the part is realized through the process, the production efficiency is improved, and the operation risk is reduced.

The base 4 moves leftwards to drive the third connecting rod 25 to move leftwards, the third connecting rod 25 drives the bottom of the second connecting rod 23 to move leftwards, the second connecting rod 23 rotates clockwise under the action of the supporting frame 22, the second connecting rod 23 rotates clockwise and drives the first connecting rod 24 to move rightwards, the female die 15 is driven to move rightwards in the process that the first connecting rod 24 moves rightwards, meanwhile, the injection cylinder 5 is driven to move leftwards in the process that the base 4 moves leftwards, when the injection cylinder 5 moves leftwards to a proper position, the female die 15 moves rightwards to a proper position and contacts the male die 21 to form a die cavity, when the female die 15 and the injection cylinder body 5 are in place, the motor 8 is started to drive the screw rod 9 to rotate, and in the rotating process of the screw rod 9, the raw materials in the injection cylinder body 5 which are heated and melted by the heater 12 are extruded and injected into the die to complete the injection molding process, so that continuous processing after automatic demolding is realized, and the production efficiency is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an injection molding machine with automatic drawing of patterns function is used for processing there is internal thread part, includes lathe bed (1), its characterized in that: the injection molding machine is characterized in that a guide rail (2) is fixedly connected to the right side of the top of the machine body (1), a slide block (3) is slidably connected to the top of the guide rail (2), a base (4) is fixedly connected to the top of the slide block (3), an injection cylinder body (5) is fixedly connected to the top of the base (4), a hydraulic cylinder (6) is fixedly connected to the right side of the injection cylinder body (5), a piston (7) is movably connected to the inside of the hydraulic cylinder (6), a motor (8) is fixedly connected to the right end of the piston (7), a screw (9) is fixedly connected to the left end of the piston (7), a check reflux valve (10) is fixedly connected to the left end of the screw (9), a hopper (11) is fixedly connected to the right side of the top of the injection cylinder body (5), a heater (12) is fixedly connected to the inside of the injection cylinder body (5), a machine frame (13) is fixedly connected to the left side of the top of the machine body (1), and a mold box body (14) is fixedly connected to the top of the machine frame (13), inside bottom sliding connection of mould box (14) has bed die (15), bed die (15) bottom swing joint has pivot (16), pivot (16) bottom fixedly connected with pinion (17), pivot (16) top fixedly connected with first bevel gear (18), bed die (15) right side swing joint has thimble (19), thimble (19) left end fixedly connected with second bevel gear (20), inside right side fixedly connected with formpiston (21) of mould box (14), lathe bed (1) top middle part fixedly connected with support frame (22), support frame (22) top articulates there is second connecting rod (23), second connecting rod (23) top articulates there is first connecting rod (24), second connecting rod (23) bottom articulates there is third connecting rod (25).

2. The injection molding machine with automatic demolding function for processing parts with internal threads as claimed in claim 1, wherein: the bottom of the die box body (14) is provided with a hole matched with the pinion (17).

3. The injection molding machine with automatic demolding function for processing parts with internal threads as claimed in claim 1, wherein: the bottom of the die box body (14) is provided with a tooth form matched with the pinion (17).

4. The injection molding machine with automatic demolding function for processing parts with internal threads as claimed in claim 1, wherein: the first bevel gear (18) and the second bevel gear (20) are meshed with each other.

5. The injection molding machine with automatic demolding function for processing parts with internal threads as claimed in claim 1, wherein: the right end of the thimble (19) is provided with a thread matched with the part.

6. The injection molding machine with automatic demolding function for processing parts with internal threads as claimed in claim 1, wherein: and a groove matched with the third connecting rod (25) is formed in the left side of the base (4).

7. The injection molding machine with automatic demolding function for processing parts with internal threads as claimed in claim 1, wherein: and a boss matched with the first connecting rod (24) is arranged at the bottom of the female die (15).

8. The injection molding machine with automatic demolding function for processing parts with internal threads as claimed in claim 1, wherein: the distance between the hinged position of the second connecting rod (23) and the supporting frame (22) and the top of the second connecting rod (23) is larger than the distance between the hinged position of the second connecting rod (23) and the bottom of the second connecting rod (23).