CN215151348U

CN215151348U - Guide assembly for injection mold

Info

Publication number: CN215151348U
Application number: CN202120967099.8U
Authority: CN
Inventors: 王斌
Original assignee: Dalian Fuhua Renhe Precision Mould Co ltd
Current assignee: Dalian Fuhua Renhe Precision Mould Co ltd
Priority date: 2021-05-08
Filing date: 2021-05-08
Publication date: 2021-12-14
Anticipated expiration: 2031-05-08

Abstract

The utility model discloses a guide component for an injection mold, which comprises a lower die holder, wherein the bottom end of the lower die holder is provided with a through hole, the lower die holder is movably connected with a push rod through the hole, the top end of the lower die holder is provided with a guide sleeve hole, the guide sleeve hole at the top end of the lower die holder is fixedly connected with a guide sleeve, the top end of the lower die holder is fixedly connected with an ejection spring, the top end of a backing plate is fixedly connected with a movable die, the top end of the movable die is fixedly connected with a core, the side surface of the movable die is movably sleeved with a square ring, the inner part of the guide sleeve is movably connected with a guide pillar, the top end of the guide pillar is fixedly connected with an upper die holder, the utility model is provided with a gear, a chain, a rack and a square ring, when the upper die and the lower die are closed, besides the traditional guide pillar and guide sleeve are matched, the square ring can also wrap the movable die and the fixed die, and the square ring offsets partial lateral stress, the deviation generated by the cavity and the core is reduced, and the possibility of generating large welding marks is reduced.

Description

Guide assembly for injection mold

Technical Field

The utility model relates to an injection mold technical field, more specifically say, the utility model relates to a direction subassembly for injection mold.

Background

The injection mold is a part which endows plastics with certain shape and size in the injection molding process, the injection molding is a method for producing and molding industrial products, and rubber and plastics are generally used for injection molding.

The prior art is not enough: injection mold relies on the guide pillar guide pin bushing to fix a position at the forming process, knows to be made pottery for tolerance fit, can have certain deviation, and pouring the in-process, the core can produce lateral stress with the die cavity finished piece, makes last finished piece can produce great weld mark, and during the finished piece drawing of patterns, can have the finished piece can't be ejecting, or has to depend on the push rod top after ejecting, needs the condition of manual drawing of patterns.

SUMMERY OF THE UTILITY MODEL

In order to overcome the above-mentioned defect of prior art, the embodiment of the utility model provides an injection mold is with direction subassembly to solve the problem that exists among the above-mentioned background art.

As shown in fig. 1-3, to achieve the above purpose, the present invention provides the following technical solutions: a guide assembly for an injection mold comprises a lower die holder, wherein a through hole is formed in the bottom end of the lower die holder, a push rod is movably connected in the through hole of the lower die holder, a guide sleeve hole is formed in the top end of the lower die holder, a guide sleeve is fixedly connected in the guide sleeve hole in the top end of the lower die holder, a pop-up spring is fixedly connected at the top end of the lower die holder, a plurality of push rod holes are formed in the middle of the top end of the lower die holder, push rods are movably connected in the push rod holes of the lower die holder, a backing plate is fixedly connected at the top end of the pop-up spring, a movable die is fixedly connected at the top end of the backing plate, a core is fixedly connected at the top end of the movable die, a square ring is movably sleeved on the side surface of the movable die, a guide pillar is fixedly connected in the guide sleeve, an upper die holder is fixedly connected at the top end of the guide pillar, and a fixed die holder is fixedly connected at the bottom of the fixed die holder, the four corners at the top end of the lower die holder are fixedly connected with fixing plates, one side of each fixing plate, which is far away from the guide pillar, is movably connected with a motor, the bottom end of each motor is movably connected with an output shaft, the middle part of the side surface of each output shaft is movably connected with two gears, the two sides of each square ring, which are close to the output shaft, are fixedly connected with two racks, the gears and the racks are mutually meshed, the top end of the side surface of each output shaft is movably sleeved with a gear, the outer edge of the gear is in transmission connection with a chain, the gears are in transmission connection with each other through the chain, the middle part of the side surface of each guide sleeve is fixedly connected with a fixing block, the top of one side of each fixing block, which is close to the guide sleeve, is movably connected with a fixing rod, the bottom of the side surface of each fixing rod is movably sleeved with a large gear, the top of the side surface of each fixing rod is movably sleeved with a pinion, the outer edge of the large gear is mutually meshed with the pinion, the side top fixedly connected with two support dead levers of fixed block, the middle part swing joint of two support dead levers on the side top of fixed block has the screw rod, the opposite side fixedly connected with stopper of screw rod, the side activity of screw rod has cup jointed and has pushed away the frame, push away the frame and be close to one side fixedly connected with ejecting body of die holder.

In a preferred embodiment, a spring is fixedly connected to the inner top end of the push-out lever, and a button is fixedly connected to the bottom end of the spring.

In a preferred embodiment, the ejection body is movably connected with the push frame, and the ejection body can be separated from the push frame.

In a preferred embodiment, the inner top end of the square ring is provided with a chamfer.

In a preferred embodiment, the gearwheel has a diameter which is twice the diameter of the pinion.

In a preferred embodiment, a movable groove is formed in the inner side of the bracket fixing rod, and a pushing frame is movably connected in the movable groove of the bracket fixing rod.

In a preferred embodiment, one side of the square ring close to the square ring is provided with an arch hole.

The utility model discloses a technological effect and advantage:

1. the utility model is provided with the gear, the chain, the rack and the square ring, which is beneficial to the precise matching between the upper die and the lower die, when the upper die and the lower die are closed, the square ring can wrap the movable die and the fixed die besides the traditional guide pillar and guide sleeve, so that the die cavity and the die core are more precisely matched, and the square ring can offset the generated lateral stress, so that the die cavity and the die core can not generate excessive deviation to generate larger welding marks;

2. the utility model discloses a be equipped with the gear, push away frame, ejecting body, dead lever, be favorable to ejecting with the finished piece, during the die sinking, release the realization and contact the core position, ejecting realization will can't be pushed out the finished piece or depend on the finished piece on the ejector pin and push down, need not to carry out the manual drawing of patterns, increase injection moulding efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a diagram of the overall structure of the explosion head of the present invention.

Fig. 3 is a schematic diagram of the ejection structure of the present invention.

The reference signs are: 1. an upper die holder; 2. fixing a mold; 3. a motor; 301. an output shaft; 302. a gear; 303. a fixing plate; 304. a chain; 305. a rack; 4. a guide post; 5. a base plate; 6. a lower die holder; 7. a guide sleeve; 8. pushing out the rod; 801. a button; 802. a spring; 9. a fixed block; 901. a screw; 902. a pinion gear; 903. a bull gear; 904. fixing the rod; 905. a bracket fixing rod; 906. pushing the frame; 907. ejecting the body; 908. a limiting block; 10. a push-out spring; 11. a push rod; 12. moving the mold; 13. a square ring; 1301. an arch-shaped hole; 14. and (3) a core.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in figures 1-3, the utility model provides a guide assembly for an injection mold, which comprises a lower die holder 6, a through hole is arranged at the bottom end of the lower die holder 6, a push rod 8 is movably connected in the through hole of the lower die holder 6, a guide sleeve hole is arranged at the top end of the lower die holder 6, a guide sleeve 7 is fixedly connected in the guide sleeve hole at the top end of the lower die holder 6, a pop-up spring 10 is fixedly connected at the top end of the lower die holder 6, a plurality of push rod holes are arranged at the middle part of the top end of the lower die holder 6, push rods 11 are movably connected in the push rod holes of the lower die holder 6, a backing plate 5 is fixedly connected at the top end of the pop-up spring 10, a movable die 12 is fixedly connected at the top end of the backing plate 5, a core 14 is fixedly connected at the top end of the movable die 12, a square ring 13 is movably sleeved at the side surface of the movable die 12, a fixed connection 15 of the movable die 12, a guide post 4 is movably connected in the guide sleeve 7, an upper die holder 1 is fixedly connected at the top end of the guide post 4, the bottom of the upper die holder 1 is fixedly connected with a fixed die 2, four corners of the top end of the lower die holder 6 are fixedly connected with a fixed plate 303, one side of the fixed plate 303, which is far away from the guide post 4, is movably connected with a motor 3, the bottom end of the motor 3 is movably connected with an output shaft 301, the middle part of the side surface of the output shaft 301 is movably connected with two gears 302, two sides of a square ring 13, which are close to the output shaft 301, are fixedly connected with two racks 305, the gears 302 and the racks 305 are mutually engaged, the top end of the side surface of the output shaft 301 is movably sleeved with the gear 302, the outer edge of the gear 302 is movably connected with a chain 304, the middle part of the side surface of the guide sleeve 7 is fixedly connected with a fixed block 9, the top of one side of the fixed block 9, which is close to the guide sleeve 7, is movably connected with a fixed rod 904, the bottom of the side surface of the fixed rod 904 is movably sleeved with a large gear 903, the top of the side surface of the fixed rod 904 is movably sleeved with the gear 302, and the outer edge of the large gear 903 is movably connected with a small gear 902, the big gear 903 is meshed with the small gear 902, the top of the side of the fixed block 9 is fixedly connected with two support fixing rods 905, the middle parts of the two support fixing rods 905 at the top of the side of the fixed block 9 are movably connected with a screw 901, the other side of the screw 901 is fixedly connected with a limit block 908, the side of the screw 901 is movably sleeved with a push frame 906, and one side of the push frame 906 close to the lower die holder 6 is fixedly connected with an ejector 907

Further, the spring 802 is fixedly connected to the top end of the inside of the ejector rod 8, the button 801 is fixedly connected to the bottom end of the spring 802, and when the button 801 is triggered when contacting the bottom end of the injection molding machine, the motor can automatically operate without manual operation, and the efficiency is improved.

Further, the ejection body 907 is movably connected with the pushing frame 906, and the ejection body 907 can be separated from the pushing frame 906, so that when the cavity and the core of the mold are modified, the ejection body 907 can be detached for modification, and the ejection task can be better completed.

Further, the top end of the inner part of the square ring 13 is provided with a chamfer, and the square ring 13 can wrap the fixed die 2 into the chamfer more smoothly in the ascending process.

Further, the diameter of the large gear 903 is twice that of the small gear 902, the moving distance of the ejection body 907 is twice that of the rack 305, and the gears need corresponding diameter ratios.

Further, a movable groove is formed in the inner side of the support fixing rod 905, and a pushing frame 906 is movably connected in the movable groove of the support fixing rod 905, so that the support fixing rod 905 can only move back and forth in the movable groove.

Furthermore, one side of the square ring 13 close to the cooling water channel 15 is provided with an arc-shaped hole 1301, and the arc-shaped hole 1301 is away from the position of the cooling water channel, so that the square ring 13 can move up and down without contacting the cooling water channel.

The utility model discloses the theory of operation:

step one, when a mold is closed and injection molding is carried out, a motor 3 and an injection molding machine are started simultaneously, an output shaft of the motor 3 drives an output shaft 301 to rotate, the output shaft 301 rotates to drive a gear 302 to rotate, the gear 302 rotates to drive a rack 305 to move upwards, the gear 302 is driven by a chain 304, the motor drives a gear 302 on the other side to rotate, the gear 302 on the other side drives a rack 305 on the other side to move upwards, the racks 305 on two sides synchronously move upwards, the gear 302 synchronously rotates with a large gear 903 through a fixed rod 904, and the large gear 903 drives a small gear 902 to rotate; the pinion 902 drives the screw 901 to rotate, the screw 901 rotates to drive the pushing frame 906 to move backwards, the rack 305 moving upwards drives the square ring 13 to move upwards, and the fixed die 2 and the movable die 12 are positioned in the square ring 13 at the same time;

and step two, during ejection, the mold is opened, the lower mold moves downwards until 801 contacts the bottom, 801 is triggered, the motor 3 rotates reversely, the motor 3 drives the gear 302 to rotate reversely, the gear 302 rotates reversely to drive the large gear 903 to rotate reversely, the large gear 903 drives the small gear 902 to rotate reversely, the small gear 902 rotates reversely to drive the limiting block 908 to rotate reversely, the limiting block 908 drives the ejection body 907 to move forwards, the ejection body 907 contacts the mold core, and the product which is not ejected is ejected and falls off, so that demolding is completed.

The points to be finally explained are: first, in the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounted," "connected," and "connected" should be understood broadly, and may be a mechanical connection or an electrical connection, or a communication between two elements, and may be a direct connection, and "upper," "lower," "left," and "right" are only used to indicate a relative positional relationship, and when the absolute position of the object to be described is changed, the relative positional relationship may be changed;

secondly, the method comprises the following steps: in the drawings of the disclosed embodiments of the present invention, only the structures related to the disclosed embodiments are referred to, and other structures can refer to the common design, and under the condition of no conflict, the same embodiment and different embodiments of the present invention can be combined with each other;

and finally: the above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides a direction subassembly for injection mold, includes die holder (6), its characterized in that die holder (6): the punching die is characterized in that a through hole is formed in the bottom end of the lower die holder (6), a push rod (8) is movably connected into the through hole of the lower die holder (6), a guide sleeve hole is formed in the top end of the lower die holder (6), a guide sleeve (7) is fixedly connected into the guide sleeve hole in the top end of the lower die holder (6), a pop-up spring (10) is fixedly connected to the top end of the lower die holder (6), a plurality of push rod holes are formed in the middle of the top end of the lower die holder (6), push rods (11) are movably connected into the push rod holes of the lower die holder (6), a backing plate (5) is fixedly connected to the top end of the pop-up spring (10), a movable die (12) is fixedly connected to the top end of the backing plate (5), a core (14) is fixedly connected to the top end of the movable die (12), a square ring (13) is movably sleeved on the side surface of the movable die (12), and a fixed connection (15) of the movable die (12), the guide sleeve (7) is movably connected with a guide pillar (4) inside, the top end of the guide pillar (4) is fixedly connected with an upper die holder (1), the bottom of the upper die holder (1) is fixedly connected with a fixed die (2), four corners of the top end of the lower die holder (6) are fixedly connected with fixed plates (303), one side, far away from the guide pillar (4), of each fixed plate (303) is movably connected with a motor (3), the bottom end of each motor (3) is movably connected with an output shaft (301), the middle part of the side surface of the output shaft (301) is movably connected with two gears (302), two racks (305) are fixedly connected to two sides, close to the output shaft (301), of each square ring (13), the gears (302) and the racks (305) are mutually meshed, the gears (302) are movably sleeved on the top end of the side surface of the output shaft (301), and chains (304) are connected to the outer edge of the gears (302) in a transmission manner, the gear (302) is in transmission connection through a chain (304), a fixing block (9) is fixedly connected to the middle of the side face of the guide sleeve (7), a fixing rod (904) is movably connected to the top of one side, close to the guide sleeve (7), of the fixing block (9), a large gear (903) is movably sleeved at the bottom of the side face of the fixing rod (904), the gear (302) is movably sleeved at the top of the side face of the fixing rod (904), a small gear (902) is movably connected to the outer edge of the large gear (903), the large gear (903) is mutually meshed with the small gear (902), two support fixing rods (905) are fixedly connected to the top of the side face of the fixing block (9), a screw (901) is movably connected to the middle of the two support fixing rods (905) at the top end of the side face of the fixing block (9), a limiting block (908) is fixedly connected to the other side face of the screw (901), and a pushing frame (906) is movably sleeved on the side face of the screw (901), one side of the push frame (906) close to the lower die holder (6) is fixedly connected with an ejection body (907).

2. The guide assembly of claim 1, wherein: the spring (802) is fixedly connected to the top end of the inside of the push-out rod (8), and the button (801) is fixedly connected to the bottom end of the spring (802).

3. The guide assembly of claim 1, wherein: the ejection body (907) is movably connected with the push frame (906), and the ejection body (907) can be separated from the push frame (906).

4. The guide assembly of claim 1, wherein: and a chamfer is arranged at the top end of the inner part of the square ring (13).

5. The guide assembly of claim 1, wherein: the diameter of the gearwheel (903) is twice the diameter of the pinion (902).

6. The guide assembly of claim 1, wherein: the inner side of the support fixing rod (905) is provided with a movable groove, and a pushing frame (906) is movably connected in the movable groove of the support fixing rod (905).

7. The guide assembly of claim 1, wherein: one side of the square ring (13) close to the square ring (15) is provided with an arch-shaped hole (1301).