CN212736946U

CN212736946U - Clamping mechanism of injection molding machine

Info

Publication number: CN212736946U
Application number: CN202021142571.6U
Authority: CN
Inventors: 李波
Original assignee: Ningbo Yalis Plastic Machinery Co ltd
Current assignee: Ningbo Yalis Plastic Machinery Co ltd
Priority date: 2020-06-18
Filing date: 2020-06-18
Publication date: 2021-03-19
Anticipated expiration: 2030-06-18

Abstract

The utility model relates to an injection molding machine technical field just discloses a clamping mechanism of injection molding machine, including the mounting panel, the mid-mounting on mounting panel top has flexible pneumatic cylinder, the guide bar is all installed in the four corners of mounting panel bottom, the fixed block is installed to the bottom of guide bar, and fixed mould is installed jointly to one side of four fixed blocks, the middle part movable mounting of guide bar has the sliding sleeve. The utility model discloses a flexible pneumatic cylinder drives movable mould and moves on the guide bar to can make movable mould and fixed mould contact, and exert pressure to movable mould through flexible pneumatic cylinder, can satisfy injection molding machine injection mold's requirement, and when movable mould combines with fixed mould, the gag lever post alternates in the inside of spacing groove, can prevent that the skew of position takes place when movable mould contacts with fixed mould, thereby influence the cooperation between two moulds, the problem of deviation appears when having solved fixed mould and movable mould concatenation.

Description

Clamping mechanism of injection molding machine

Technical Field

The utility model relates to an injection molding machine technical field especially relates to a clamping mechanism of injection molding machine.

Background

An injection molding machine is also known as an injection molding machine or an injection machine. It is a main forming equipment for making various shaped plastic products from thermoplastic plastics or thermosetting plastics by using plastic forming mould. The device is divided into a vertical type, a horizontal type and a full-electric type. The injection molding machine can heat the plastic, apply high pressure to the molten plastic, and inject it to fill the mold cavity.

The clamping mechanism is an important component for fixing the fixed mold and the movable mold when the injection molding machine is used, but when the common clamping mechanism is used, because the movable mold rubs the guide rod for a long time, some deviation can occur when the fixed mold and the movable mold are spliced, so that qualified finished products cannot be obtained when injection molding is carried out, and the clamping mechanism of the injection molding machine is provided for solving the problems.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: because the movable mould rubs the guide bar for a long time, some deviations can appear when the fixed mould and the movable mould are spliced, and the clamping mechanism of the injection molding machine is provided.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a clamping mechanism of injection molding machine, includes the mounting panel, the mid-mounting on mounting panel top has flexible pneumatic cylinder, the guide bar is all installed in the four corners of mounting panel bottom, the fixed block is installed to the bottom of guide bar, and fixed mould is installed jointly to one side of four fixed blocks, the middle part movable mounting of guide bar has the sliding sleeve, and movable mould is installed jointly to one side of four sliding sleeves, the mid-mounting on movable mould top has fixed cover, the outside cover of fixed cover is equipped with the movable sleeve, the connecting block is installed on the top of movable sleeve, the output of flexible pneumatic cylinder passes the mounting panel and is connected with the connecting block, the equal vertical spacing groove of having seted up in four.

Preferably, the left side and the right side of the inside of the movable mold are both provided with hydraulic grooves which are symmetrical front and back, the top end of the movable mold is provided with a threaded hole communicated with the hydraulic grooves, the bottom end of the movable mold is provided with a sliding hole communicated with the hydraulic grooves, a limiting rod is movably inserted in the sliding hole, the top end of the limiting rod is inserted in the hydraulic grooves and provided with a piston block, and the limiting rod is movably inserted in the limiting grooves.

Preferably, the water conservancy diversion frame is installed on the top of mounting panel and the outside that is located flexible pneumatic cylinder, the internally mounted of screw hole has the pressure valve, hydraulic pressure oil pipe is installed on the top of pressure valve, hydraulic pressure oil pipe's top is passed the mounting panel and is linked together with the water conservancy diversion frame.

Preferably, the top end of the fixed sleeve is provided with an annular groove, a buffer spring is movably arranged in the annular groove, and the top end of the buffer spring is connected with the connecting block.

Preferably, the inside both sides of movable sleeve are all vertically seted up the spout, the middle part of fixed cover both sides is all installed the slider, the slider activity is alternates in the inside of spout.

Preferably, the middle part of the bottom end of the fixed die is provided with an injection molding pipe.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a flexible pneumatic cylinder drives movable mould and moves on the guide bar to can make movable mould and fixed mould contact, and exert pressure to movable mould through flexible pneumatic cylinder, can satisfy injection molding machine injection mold's requirement, and when movable mould combines with fixed mould, the gag lever post alternates in the inside of spacing groove, can prevent that the skew of position takes place when movable mould contacts with fixed mould, thereby influence the cooperation between two moulds, the problem of deviation appears when having solved fixed mould and movable mould concatenation.

(2) The utility model discloses an inside at the moving die sets up the hydraulic pressure groove to when two moulds splice each other, the gag lever post alternates in the inside of gag lever post, and the gag lever post upwards promotes the piston piece and removes in the inside in hydraulic pressure groove, and through the hydraulic oil that the hydraulic pressure inslot portion was filled, the piston piece extrudees hydraulic oil, can cushion the moving die utensil, when preventing that the moving die utensil from matching with the fixed die utensil, bumps and causes the damage to the mould.

Drawings

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

FIG. 2 is a schematic view of the internal structure of the moving mold of the present invention;

fig. 3 is a schematic top view of the fixed mold of the present invention;

fig. 4 is the schematic view of the mounting structure of the connecting block 3 and the movable sleeve of the present invention.

In the figure: 1. mounting a plate; 2. a guide bar; 3. connecting blocks; 4. a movable sleeve; 5. moving the mold; 6. a limiting rod; 7. a fixed block; 8. injection molding a tube; 9. fixing a mold; 10. a sliding sleeve; 11. a pressure valve; 12. a hydraulic oil pipe; 13. a flow guiding frame; 14. a telescopic hydraulic cylinder; 15. a threaded hole; 16. a hydraulic tank; 17. a piston block; 18. a limiting groove; 19. fixing a sleeve; 20. a chute; 21. a slider; 22. an annular groove; 23. a buffer spring; 24. and (4) a slide hole.

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.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-4, a mold clamping mechanism of an injection molding machine comprises a mounting plate 1, a telescopic hydraulic cylinder 14 is mounted in the middle of the top end of the mounting plate 1, a movable mold 5 can be pushed to slide on a guide rod 2 through the telescopic hydraulic cylinder 14, the movable mold 5 can be combined with a fixed mold 9 conveniently, the guide rods 2 are mounted at four corners of the bottom end of the mounting plate 1, a fixed block 7 is mounted at the bottom end of the guide rod 2, the fixed mold 9 is mounted at one side of each of the four fixed blocks 7, an injection molding pipe 8 is mounted in the middle of the bottom end of the fixed mold 9, a sliding sleeve 10 is movably mounted in the middle of the guide rod 2, the movable mold 5 is mounted at one side of each of the four sliding sleeves 10, a fixed sleeve 19 is mounted in the middle of the top end of the movable mold 5, an annular, the buffer spring 23 is arranged in an annular groove 22 formed in the fixed sleeve 19, when the telescopic hydraulic cylinder 14 runs and pushes the movable mold 5 to contact with the fixed mold 9, a buffer effect can be exerted on the movable mold 5, the movable sleeve 4 is sleeved outside the fixed sleeve 19, the connecting block 3 is arranged at the top end of the movable sleeve 4, sliding grooves 20 are vertically formed in two sides of the interior of the movable sleeve 4, sliding blocks 21 are arranged in the middle parts of two sides of the fixed sleeve 19, the sliding blocks 21 are movably inserted into the sliding grooves 20, the output end of the telescopic hydraulic cylinder 14 penetrates through the mounting plate 1 to be connected with the connecting block 3, four corners of the top end of the fixed mold 9 are vertically provided with limiting grooves 18, the left side and the right side of the interior of the movable mold 5 are provided with hydraulic grooves 16 which are symmetrical in the front and back direction, the top end of the movable mold 5 is provided with a threaded, the limiting rod 6 is movably inserted in the sliding hole 24, the top end of the limiting rod 6 is inserted in the hydraulic groove 16 and provided with a piston block 17, the limiting rod 6 is movably inserted in the limiting groove 18, hydraulic oil in the hydraulic groove 16 is extruded through the limiting rod 6 inserted in the limiting groove 18, the movable die 5 can be prevented from deviating when the movable die 5 is in contact with the fixed die 9, and the influence on injection molding is avoided, the flow guide frame 13 is arranged at the top end of the mounting plate 1 and positioned outside the telescopic hydraulic cylinder 14, the pressure valve 11 is arranged in the threaded hole 15, the hydraulic oil pipe 12 is arranged at the top end of the pressure valve 11, the top end of the hydraulic oil pipe 12 penetrates through the mounting plate 1 to be communicated with the flow guide frame 13, the pressure valve 11 is opened when the hydraulic groove 16 is under high pressure, the hydraulic oil in the hydraulic groove 16 is conveyed into the flow guide frame 13, and the pressure in the hydraulic groove 16 can be reduced, thereby enabling the movable mold 5 to be cushioned.

In the utility model, when the user uses the device, firstly, the telescopic hydraulic cylinder 14 is started to extend, the movable mould 5 can be pushed to move along the straight line direction on the guide rod 2 through the connecting block 3 and the movable sleeve 4, the telescopic hydraulic cylinder 14 continuously pushes the movable mould 5 to move, when the movable mould 5 is contacted with the fixed mould 9, the limiting rod 6 is inserted in the limiting groove 18, the telescopic hydraulic cylinder 14 continuously applies pressure to the movable mould 5, then the limiting rod 6 is pushed upwards to jack the piston block 17, meanwhile, the piston block 17 extrudes hydraulic oil in the hydraulic groove 16 to a certain degree, the pressure in the hydraulic groove 16 is increased, the pressure valve 11 is opened after detecting that the pressure in the hydraulic groove 16 reaches a certain value, the hydraulic oil is conveyed to the inside of the diversion frame 13 through the hydraulic oil pipe 12, thereby the pressure in the hydraulic groove 16 can be buffered, the pressure in the movable mould is balanced, and the movable mould 5 and the fixed mould 9 can be always kept in a mould closing state by continuously pushing the movable mould 5 through the telescopic hydraulic cylinder 14, so that the injection molding machine can conveniently inject molten plastics into the movable mould and the fixed mould.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Claims

1. The mold locking mechanism of the injection molding machine comprises a mounting plate (1) and is characterized in that a telescopic hydraulic cylinder (14) is mounted at the middle of the top end of the mounting plate (1), guide rods (2) are mounted at four corners of the bottom end of the mounting plate (1), fixed blocks (7) are mounted at the bottom ends of the guide rods (2), a fixed mold (9) is mounted at one side of each of the four fixed blocks (7), a sliding sleeve (10) is movably mounted at the middle of each of the guide rods (2), a movable mold (5) is mounted at one side of each of the four sliding sleeves (10), a fixed sleeve (19) is mounted at the middle of the top end of each of the movable molds (5), a movable sleeve (4) is sleeved at the outer side of each fixed sleeve (19), a connecting block (3) is mounted at the top end of each movable sleeve (4), and the output end, and limiting grooves (18) are vertically formed in four corners of the top end of the fixed die (9).

2. The mold locking mechanism of an injection molding machine according to claim 1, wherein the left side and the right side of the inside of the movable mold (5) are both provided with hydraulic grooves (16) which are symmetrical front and back, the top end of the movable mold (5) is provided with a threaded hole (15) communicated with the hydraulic grooves (16), the bottom end of the movable mold (5) is provided with a sliding hole (24) communicated with the hydraulic grooves (16), the inside of the sliding hole (24) is movably inserted with a limiting rod (6), the top end of the limiting rod (6) is inserted in the hydraulic grooves (16) and is provided with a piston block (17), and the limiting rod (6) is movably inserted in the limiting groove (18).

3. The clamping mechanism of an injection molding machine according to claim 2, wherein a flow guide frame (13) is installed at the top end of the mounting plate (1) and located outside the telescopic hydraulic cylinder (14), a pressure valve (11) is installed inside the threaded hole (15), a hydraulic oil pipe (12) is installed at the top end of the pressure valve (11), and the top end of the hydraulic oil pipe (12) penetrates through the mounting plate (1) to be communicated with the flow guide frame (13).

4. The clamping mechanism of an injection molding machine according to claim 1, wherein the top end of the fixed sleeve (19) is provided with an annular groove (22), a buffer spring (23) is movably mounted inside the annular groove (22), and the top end of the buffer spring (23) is connected with the connecting block (3).

5. The clamping mechanism of an injection molding machine according to claim 1, wherein sliding grooves (20) are vertically formed in both sides of the interior of the movable sleeve (4), sliding blocks (21) are mounted in the middle of both sides of the fixed sleeve (19), and the sliding blocks (21) are movably inserted in the sliding grooves (20).

6. The clamping mechanism of an injection molding machine according to claim 1, wherein an injection molding pipe (8) is installed in the middle of the bottom end of the stationary mold (9).