CN218876127U - Front mould is bumped by oneself and is worn hank tooth mechanism - Google Patents

Abstract

The utility model provides a front mould bumps by oneself and wears hank tooth mechanism, including front mould and back mould, the front mould includes first template, the second template, third template and driver part, driver part includes the oil pump, the oil pump is connected with outer tooth cover through the gear chain structure, a plurality of planet wheel of outer tooth cover internal gearing, the joint has hank tooth axle in the planet wheel, hank tooth axle is the both threaded hank tooth axle of double-end, the one end of hank tooth axle stretches into the third template outside and is used for the screw thread of moulding plastics, the other end is connected in fixed screw thread seat that sets up in the second template, different with injection mold in the past, through stretching out and regressing of the hank tooth axle that sets up with double-end thread, deviate from by oneself at the front mould, do not need personnel to take out from the back mould, the step of dismantling the screw thread plastics has been saved, and use gear chain structure to connect outer tooth cover drive the planet wheel rotation, compare in traditional external meshing's mode, the meshing number of teeth of planet wheel has been increased, utilize big drive ratio transmission big moment of torsion, can realize not having the function of moulding plastics of injection molding of retaining ring screw thread plastics.

Description

Front mould is bumped by oneself and is worn hank tooth mechanism

Technical Field

The utility model relates to a front mould bumps by oneself and wears hank tooth mechanism belongs to the mould field.

Background

In injection mold, including front mould and back mould, general drawing of patterns process is all deviate from in the back mould, and present injection method to the screw thread piece all is moulded a peripheral setting round retaining ring at the screw thread and is used for the butt template to deviate from, if do not set up the retaining ring then hardly reach the effect that the screw thread piece demolded smoothly, and generally all deviate from at the back mould, if need make the screw thread piece of moulding that does not have the retaining ring, utilize current injection mold can not realize.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the defects existing in the prior art and providing a front mould self-collision threading twisting tooth mechanism.

The utility model provides a front mould bumps by oneself and wears hank tooth mechanism, includes front mould and back mould, the front mould includes first template, second template, third template and driver part, driver part includes the oil pump, the oil pump is connected with outer tooth cover through the gear chain structure, a plurality of planet wheel of outer tooth cover internal gearing, the joint has the hank tooth axle in the planet wheel, the hank tooth axle all has the screwed hank tooth axle for the double-end, the one end of hank tooth axle stretches into the third template outside and is used for the screw thread of moulding plastics, and the other end is connected in fixed screw thread seat that sets up in the second template, and is different with injection mold in the past, through stretching out and the regression of the hank tooth axle that sets up with the double-end screw thread, deviates from by oneself at the front mould, does not need personnel to take out from the back mould, has saved the step of dismantling the screw thread plastics, and uses the gear chain structure to connect outer tooth cover to drive the rotation of planet wheel, compares in the mode of traditional external gearing, has increased the number of teeth of planet wheel, utilizes big torque of big drive ratio transmission, can realize not having the function of moulding plastics of screw thread plastics who has not had the screw thread plastics.

Preferably, be equipped with the chain groove in the second template, gear chain structure including rotate the wheel and with the chain of rotating the wheel meshing, the chain sets up in the chain groove, second template bottom is equipped with the fixed die plate, rotate the wheel and rotate and install in the fixed die plate, start the oil pump and drive the chain and rotate, the chain drives the gear sleeve and rotates, the gear sleeve rotates and drives the planet wheel rotation, the planet wheel passes through the hank tooth axle and rotates to be connected in the screw thread seat, realizes stretching out and the shrink of hank tooth axle in the front mould.

Furthermore, a bearing is arranged in the second template, and the outer gear sleeve is sleeved in the bearing, so that the friction between the gear sleeve and the second template is reduced, and the gear sleeve can smoothly rotate.

Preferably, the back mould includes the fourth template, the correspondence is equipped with a plurality of and the optional shaping post that butts in hank tooth axle top in the fourth template, shaping post and hank tooth axle top butt when moulding plastics, form the hole at a screw thread plastic part top.

Preferably, an injection molding inlet is formed in the first template, the injection molding inlet is communicated with an injection molding pipeline, the injection molding pipeline penetrates through the second template and the third template to the fourth template, the injection molding pipeline is connected with injection molding branches respectively extending to the twisted tooth shafts at all positions, and the injection molding branches are arranged on the fourth template and communicated with forming holes for forming injection molding threads in the front mold.

Preferably, the middle part of the reamer shaft is provided with a clamping block, the planetary gear is internally provided with a clamping hole matched with the clamping block, and the reamer shaft and the planetary gear are fixedly connected by utilizing the clamping block and the clamping hole.

Further, the joint piece is the square, and the four corners of joint piece can also set up the chamfer, increases area of contact, and the installation is more firm, and the joint piece can also set to other shapes according to the size of planet wheel, is convenient for adapt to the piece of moulding of different specifications in a flexible way.

The utility model has the advantages as follows: different with injection mold in the past, through setting up stretching out and regressing of the hank tooth axle that has double thread, deviate from at the front mould by oneself, do not need personnel to take out from the back mould, saved the step that the piece was moulded to the dismantlement screw thread, and use the outer tooth cover of gear chain structural connection to drive the planet wheel rotation, compare in the mode of traditional external toothing, increased the meshing number of teeth of planet wheel, utilize big moment of torsion of big drive ratio transmission, can realize not having the function of moulding plastics that the piece was moulded to the retaining ring screw thread.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings obtained from these drawings still belong to the scope of the present invention without inventive laboriousness.

FIG. 1 is a schematic view of the main structure of the present invention;

FIG. 2 is a schematic view of the structure with the first template removed;

FIG. 3 is a schematic view of the structure with the first and second templates removed;

FIG. 4 is a schematic structural view with the first template, the second template, the third template, the fixed template and the bearing removed;

FIG. 5 is a schematic structural view with the first template, the second template, the third template, the fixed template, the bearing and the chain removed;

FIG. 6 is a schematic structural view of a front mold;

FIG. 7 is a schematic view of the front mold with the third mold plate removed;

FIG. 8 is a schematic structural view of the meshing of the outer gear sleeve and the planet gear;

FIG. 9 is a schematic structural view of a reamer shaft and a planet wheel;

FIG. 10 is a schematic structural view of a fourth template;

in the figure, 1, front mould; 2. a first template; 21. an injection molding inlet; 22. injecting a pipeline; 23. injection molding branches; 3. a second template; 31. an outer gear sleeve; 32. a planet wheel; 321. a clamping hole; 33. a thread twisting shaft; 331. a clamping block; 34. a threaded seat; 35. a chain groove; 36. a bearing; 4. a third template; 5. fixing the template; 6. a drive member; 61. an oil pump; 62. a gear chain structure; 621. a rotating wheel; 622. a chain; 7. a rear mold; 71. a fourth template; 711. forming a column; 712. and (5) forming holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.

It should be noted that all expressions using "first" and "second" in the embodiments of the present invention are used for distinguishing two entities with the same name but different names or different parameters, and it is understood that "first" and "second" are only used for convenience of expression and should not be understood as limitations to the embodiments of the present invention, and the following embodiments do not describe any more.

The terms of direction and position in the present invention, such as "up", "down", "front", "back", "left", "right", "inside", "outside", "top", "bottom", "side", etc., refer to the direction and position of the attached drawings. Accordingly, the use of directional and positional terms is intended to illustrate and understand the present invention and is not intended to limit the scope of the invention.

As shown in fig. 1-10, for the utility model relates to a front mould bumps by oneself and wears embodiment of hank tooth mechanism, including front mould 1 and back mould 7, front mould 1 includes first template 2, second template 3, third template 4 and driver part 6, driver part 6 includes oil pump 61, oil pump 61 is connected with outer tooth cover 31 through gear chain structure 62, a plurality of planet wheel 32 of outer tooth cover 31 internal gearing, the joint has hank tooth axle 33 in planet wheel 32, hank tooth axle 33 all takes the screwed hank tooth axle 33 for the double-end, the one end of hank tooth axle 33 stretches into the outside screw thread plastic member that is used for moulding plastics of third template 4, the other end is connected in fixed screw thread seat 34 that sets up in second template 3, different with injection mold in the past, through setting up stretching out and regressing of hank tooth axle 33 that has double-thread, it takes out from back mould 7 not needing the personnel to deviate from, the step of dismantling the screw thread plastic member has been saved, and use gear chain structure 62 to connect outer tooth cover drive 32, compare in the rotation of traditional external gearing, the mesh mode of planet wheel 32 has been increased, the big tooth number of transmission of the transmission that can utilize the planet wheel to mould plastics greatly.

Be equipped with chain groove 35 in the second template 3, gear chain structure 62 includes and rotates wheel 621 and with the chain 622 that rotates wheel 621 meshing, chain 622 sets up in chain groove 35, second template 3 bottom is equipped with fixed die plate 5, it rotates and installs in fixed die plate 5 to rotate wheel 621, it drives chain 622 and rotates to start oil pump 61, chain 622 drives the gear sleeve and rotates, the gear sleeve rotates and drives planet wheel 32 and rotate, planet wheel 32 rotates through hank tooth axle 33 and connects in screw thread seat 34, realize stretching out and the shrink of hank tooth axle 33 in front mould 1. The bearing 36 is arranged in the second template 3, and the outer gear sleeve 31 is sleeved in the bearing 36, so that the friction between the gear sleeve and the second template 3 is reduced, and the gear sleeve and the second template 3 can smoothly rotate.

The rear mould 7 comprises a fourth mould plate 71, a plurality of forming columns 711 which can be selectively abutted with the top of the twisted tooth shaft 33 are correspondingly arranged in the fourth mould plate 71, and the forming columns 711 are abutted with the top of the twisted tooth shaft 33 during injection molding to form holes at the top of a thread molding part. Be equipped with the import 21 of moulding plastics in the first template 2, the import 21 of moulding plastics communicates with the pipeline 22 of moulding plastics, and the pipeline 22 of moulding plastics passes in second template 3, third template 4 to fourth template 71, and the pipeline that moulds plastics is connected with the branch 23 of moulding plastics that extends to each department hank tooth axle 33 respectively, and the branch 23 of moulding plastics is located and is communicated with on the fourth template 71 and is had shaping hole 712 for it moulds plastics screw thread in front mould 1 and mould.

The middle of the cutter tooth shaft 33 is provided with a clamping block 331, a clamping hole 321 matched with the clamping block 331 is arranged in the planet wheel 32, and the cutter tooth shaft 33 and the planet wheel 32 are fixedly connected by utilizing the clamping block 331 and the clamping hole 321. The joint piece 331 is the square, and the four corners of joint piece 331 can also set up the chamfer, increases area of contact, and the installation is more firm, and other shapes can also be set to according to planet wheel 32's size to joint piece 331, are convenient for adapt to the piece of moulding of different specifications in a flexible way.

During the use, the compound die starts oil pump 61, oil pump 61 drives and rotates rotating wheel 621, rotating wheel 621 drives the rotation of meshing chain 622, gear sleeve with chain 622 external toothing rotates, planet wheel 32 with gear sleeve internal toothing rotates, the hank tooth axle 33 of joint in planet wheel 32 rotates, stretch out from screw thread seat 34 in to fourth template 71 with the shaping post 711 butt and mould plastics, the back of moulding plastics is accomplished, reverse rotation rotating wheel 621, hank tooth axle 33 also carries out reverse rotation according to the transmission route and returns to screw thread seat 34, the thrust that the screw thread was moulded the piece and is withdrawed from in the screw thread is moulded the piece through the butt of bottom and third template 4 and hank tooth axle 33, front mould 1 and back mould 7 separation, the screw thread is moulded the piece and is come off naturally in front mould 1, accomplish once moulding plastics.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

While the invention has been described with reference to several particular embodiments, it is to be understood that the invention is not limited to the specific embodiments disclosed. The invention is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.

Claims (7)

1. The utility model provides a front mould bumps by oneself and wears hank tooth mechanism which characterized in that: including front mould and back mould, the front mould includes first template, second template, third template and driver part, driver part includes the oil pump, the oil pump is connected with outer tooth cover through the gear chain structure, a plurality of planet wheel of outer tooth cover internal gearing, the joint has the hank tooth axle in the planet wheel, the hank tooth axle all takes the screwed hank tooth axle for the double-end, the one end of hank tooth axle stretches into the third template outside and is used for the screw thread of moulding plastics to mould plastics, and the other end is connected in fixed screw thread seat that sets up in the second template.

2. The front mold self-piercing threading mechanism of claim 1, characterized in that: the chain groove is formed in the second template, the gear chain structure comprises a rotating wheel and a chain meshed with the rotating wheel, the chain is arranged in the chain groove, a fixed template is arranged at the bottom of the second template, and the rotating wheel is rotatably installed in the fixed template.

3. The front mold self-piercing threading mechanism of claim 2, characterized in that: the second template is internally provided with a bearing, and the outer gear sleeve is sleeved in the bearing.

4. The front mold self-piercing threading mechanism of claim 1, characterized in that: the rear die comprises a fourth die plate, and a plurality of forming columns which can be selectively abutted against the top of the tooth twisting shaft are correspondingly arranged in the fourth die plate.

5. The front mold self-piercing threading mechanism of claim 1, characterized in that: the injection molding device is characterized in that an injection molding inlet is formed in the first template, the injection molding inlet is communicated with an injection molding pipeline, the injection molding pipeline penetrates through the second template and the third template to the fourth template, the injection molding pipeline is connected with injection molding branches respectively extending to the hinge shafts at all positions, and the injection molding branches are arranged on the fourth template and communicated with forming holes.

6. The front mold self-piercing threading mechanism of claim 1, characterized in that: the middle part of the hinge shaft is provided with a clamping block, and a clamping hole matched with the clamping block is formed in the planet wheel.

7. The front mold self-piercing threading mechanism of claim 6, characterized in that: the clamping blocks are square.

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