CN211440985U

CN211440985U - Core-pulling structure of one-outlet long-large elbow die

Info

Publication number: CN211440985U
Application number: CN201922194385.0U
Authority: CN
Inventors: 刘康民
Original assignee: Taizhou Huangyan Feilida Plastic Co ltd
Current assignee: Taizhou Huangyan Feilida Plastic Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-08
Anticipated expiration: 2029-12-09

Abstract

The utility model relates to the technical field of mold, the utility model provides a two bend mould core pulling structures of growing up, including cope match-plate pattern and lower bolster, be equipped with mould benevolence in the cope match-plate pattern, be equipped with lower mould benevolence in the lower bolster, it has two die cavities that are used for the shaping elbow pipe fitting to go up between mould benevolence and the lower mould benevolence, the one end of every die cavity is equipped with first mechanism of loosing core, the other end is equipped with the second mechanism of loosing core, the die cavity has the segmental arc at least and locates the first straight section of this segmental arc one end, first mechanism of loosing core is including the first straight core that lies in the first straight section of die cavity under the compound die state, this first straight core lies in die cavity one end axial extension, and first straight core is close to outer arc one side of die cavity segmental arc and has the shaping face that corresponds with this segmental arc, the inner of mechanism of loosing core of. The space occupied by the arc-shaped core is reduced, and meanwhile, the arc-shaped size of the inner end part of the arc-shaped core is greatly reduced, so that the requirement on the rotating precision is lowered.

Description

Core-pulling structure of one-outlet long-large elbow die

Technical Field

The utility model belongs to the technical field of the mould, a mould core pulling structure is related to, especially, relate to a two elbow mould core pulling devices of growing up.

Background

The core-pulling device is used for a demoulding process in a mould, the core-pulling device in a pipe fitting mould, particularly a pipe fitting elbow mould, is particularly complex, and the traditional elbow mould core-pulling device adopts a rack to drive a gear to rotate, so that the structure is complex, the manufacturing cost is high, the occupied area is large, and the mould is not convenient to use.

The utility model discloses a chinese utility model patent [ patent number 201720326510.7] discloses a structure of loosing core in linkage of injection moulding elbow mould, it is including the movable mould that is equipped with the injection moulding elbow die cavity, injection moulding elbow die cavity both ends are equipped with two sliders respectively, two sliders are installed respectively and are sheathe in corresponding slider is fixed, the fixed cover of second slider is connected with the hydro-cylinder, the fixed cover one end of first slider is passed through the location bearing and is set up on the movable mould, two fixed covers of slider pass through connecting rod swing joint, after injection moulding accomplished, the hydro-cylinder drives the fixed cover of second slider and connecting rod outwards removal, the connecting rod drives the fixed cover of first slider and carries out clockwise rotation around using location bearing as the center, when the second slider breaks away from the mould completely.

Above-mentioned technical scheme saves the required time of loosing core, has simplified the mould structure, reduces mould manufacturing cost, has improved production efficiency, but this rotation radian of loosing core structure is great, and to growing up elbow mould, occupation space is great.

Disclosure of Invention

The utility model aims at the problems and provides a core-pulling structure for a mould with two long and large elbows; the technical problem that the elbow core pulling structure in the prior art occupies a large space in rotation is solved.

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

the utility model provides a two elbow mould core pulling structures of growing up is creatively provided, including cope match-plate pattern and lower bolster, be equipped with mould benevolence in the cope match-plate pattern, be equipped with lower mould benevolence in the lower bolster, it has two die cavities that are used for shaping elbow pipe fitting to go up between mould benevolence and the lower mould benevolence, the one end of every die cavity is equipped with first mechanism of loosing core, the other end is equipped with the second mechanism of loosing core, the die cavity has the segmental arc at least and locates the first straight type section of this segmental arc one end, first mechanism of loosing core is including the first straight type core that lies in the first straight type section of die cavity under the compound die state, this first straight type core lies in die cavity one end axial extension, and first straight type core is close to outer arc one side of die cavity segmental arc and has the profile that corresponds with this segmental arc, the inner that the mechanism of loosing core of second.

In the core pulling structure for the two-large-elbow mold, the cavity comprises an arc-shaped section, a first straight section and a second straight section, the first straight section and the second straight section are respectively connected to two ends of the arc-shaped section, the second core pulling mechanism comprises a second straight core, a guide rod and an arc-shaped core, the guide rod is movably arranged in the second straight core along the axial direction, the arc-shaped core is connected to the inner side end of the guide rod, and the inner side of the arc-shaped core is provided with an arc surface matched with the inner end of the first straight core.

In the core pulling structure for the two-large-elbow mold, the first core pulling mechanism further comprises a first slide way arranged on the outer side of the lower template, and the first straight core is matched with the first slide way.

In the core pulling structure for the first and second large-elbow moulds, the second core pulling mechanism further comprises a second slide way arranged on the outer side of the lower template, and the second straight core is matched with the second slide way.

In the core pulling structure of the die with the two long and large elbows, the outer side end of the arc-shaped core is connected with the guide rod through the inserted rod arranged in the radial direction.

In the core pulling structure of the one-out two-long elbow die, the two cavities are symmetrically arranged along the central line of the lower die core.

In the core pulling structure of the one-out-two long-large elbow die, the upper die core and the lower die core are provided with the runners, the runners are communicated with the two die cavities, and the arc-shaped section of the runner connecting die cavity is close to the outer arc-shaped surface of the first straight section.

In the core pulling structure of the one-out-two long and large elbow die, the bottom of the lower die plate is provided with the ejection mechanism, the ejection mechanism comprises an ejection plate and an ejector rod arranged on the ejection plate, and the top end of the ejector rod is connected with the die cavity.

In the core pulling structure for the two-long elbow mold, the second core pulling mechanism comprises an arc-shaped core, and the inner side of the arc-shaped core is provided with the arc surface matched with the inner end of the first straight core.

Compared with the prior art, the utility model has the advantages of:

through the design of the end face of the first straight core, the length of the first straight core is prolonged, so that the space occupied by the arc core in the rotating process is reduced, meanwhile, the arc size of the end part in the arc core is greatly reduced, and the requirement on the rotating precision is lowered.

Drawings

Fig. 1 is a schematic structural diagram provided by the present invention.

Fig. 2 is a cross-sectional view provided by the present invention.

Fig. 3 is an exploded view provided by the present invention.

In the figure, an upper template 1, an upper mold core 10, a lower template 2, a lower mold core 20, a cavity 100, an arc-shaped section 101, a first straight section 102, a second straight section 103, a runner 110, a first core pulling mechanism 3, a first straight mold core 30, a molding surface 300, a first slide way 31, a second core pulling mechanism 4, an arc-shaped core 40, an arc-shaped surface 400, a second straight core 41, a guide rod 42, a second slide way 43, an inserting rod 44, an ejection mechanism 5, an ejection plate 50, an ejector rod 51 and a rotation driving device 6.

Detailed Description

The invention is further illustrated by the following examples.

Example one

As shown in fig. 1 and 2, the utility model provides a two big elbow mould structure of loosing core of growing up creatively, including cope match-plate pattern 1 and lower bolster 2, be equipped with mould benevolence 10 in the cope match-plate pattern 1, be equipped with lower mould benevolence 20 in the lower bolster 2, two die cavities 100 that are used for the shaping elbow pipe fitting have between the lower mould benevolence 10 and the lower mould benevolence 20, two die cavities 100 set up along the central line symmetry of lower mould benevolence 20, the one end of every die cavity 100 is equipped with first mechanism 3 of loosing core, the other end is equipped with second mechanism 4 of loosing core, die cavity 100 includes segmental arc 101 and connects respectively in first rectilinear section 102 and the straight section 103 of second at segmental arc 101 both ends, the cross section radius of first rectilinear section 102 and the straight section 103 of second is greater than segmental arc 101.

With reference to fig. 2 and 3, the first core pulling mechanism 3 includes a first straight core 30 and a first slideway 31, the first slideway 31 is connected to the outer side of the lower template 2, and the first straight core 30 and the first slideway 31 cooperate to reciprocate along the axial direction; the first straight core 30 is located in the first straight section 102 of the cavity 100 in a mold closing state, the first straight core 30 is located at one end of the cavity 100 and extends axially, one side of the first straight core 30 close to the outer arc of the arc-shaped section 101 of the cavity 100 is provided with a forming surface 300 corresponding to the arc-shaped section 101, and the first straight core 30 is driven by a first oil cylinder (not shown in the figure) connected with the first straight core 30.

Referring to fig. 2 and 3, the second core pulling mechanism 4 includes a second straight core 41, a guide rod 42, an arc core 40, and a second slide 43, and the second straight core 41 moves to the front end of the guide rod 42 to be inserted into the arc core 40 in the mold closing state. The second slide way 43 is connected to the outer side of the lower template 2, the second slide way 43 is hinged with the lower template 2 and can be driven to rotate along a shaft by the rotary driving device 6 arranged on the lower template 2, the rotating direction is the same as the core pulling radian of the arc-shaped core 40, and the arc-shaped core 40 can be successfully pulled; the second straight core 41 is matched with the second slide way 43 to reciprocate along the axial direction, and the second straight core 41 is driven by a second oil cylinder (not shown in the figure) connected with the second straight core 41; the cross section of the guide rod 42 is rectangular and is movably arranged in the second straight core along the axial direction; the inner end of the arc-shaped core 40 is provided with an arc surface 400 matched with the inner end of the first straight core 30, and the arc-shaped core 40 is connected to the inner side end of the guide rod 42 through an inserting rod 44 arranged in the radial direction to realize fixed connection, so that the second slide way 43 can drive the arc-shaped core 40 to smoothly loose core through the second straight core 41 and the guide rod 42 in sequence when rotating.

The rotary drive 6 is preferably a cylinder.

As shown in fig. 2, the upper mold core 10 and the lower mold core 20 are provided with a flow passage 110, the flow passage 110 communicates with the two mold cavities 100, and the flow passage 110 connects the arc-shaped section 101 of the mold cavity 100 to the outer arc-shaped surface of the first straight section 102.

As shown in fig. 1, an ejection mechanism 5 is disposed at the bottom of the lower mold plate 2, the ejection mechanism 5 includes an ejection plate 50 and an ejector rod 51 disposed on the ejection plate 50, and a top end of the ejector rod 51 is connected to the cavity 100 for ejecting a product after core pulling.

The working principle of the utility model is as follows:

in the core pulling process, the first straight core 30 is driven by external force to slide outwards along the first slide rail and be pulled out, the second straight core 41 is driven by external force to slide outwards along the second slide rail and be pulled out to be connected with the tail end of the guide rod 42, the external force drives the second core pulling mechanism 4 to rotate, the arc-shaped core 40 is smoothly pulled out of the cavity 100, the size of a rotating part is reduced, and the core pulling mechanism is suitable for elbow pipe fittings with straight sections at two ends.

Example two

This embodiment is substantially the same as the first embodiment, except that:

referring to fig. 2, the mold cavity 100 includes an arc-shaped section 101 and a first straight section 102 connected to one end of the arc-shaped section 101; the second core pulling mechanism 4 comprises an arc-shaped core 40, the inner side of the arc-shaped core 40 is provided with an arc surface 400 matched with the inner end of the first straight core 30, the lower template 2 is connected with a rotary driving device 6, the rotary driving device 6 is connected with the arc-shaped core 40, the rotary driving device 6 drives the rotation along the shaft, the rotation direction is the same as the core pulling radian of the arc-shaped core 40, and the smooth core pulling of the arc-shaped core 40 is just realized.

The working principle of the utility model is as follows:

in the core pulling process, the first straight core 30 is driven by external force to slide outwards along the first slide rail and be pulled out, the second core pulling mechanism 4 is driven by the external force to rotate, the arc-shaped core 40 is smoothly pulled out of the cavity 100, the size of a rotating part is reduced, and the core pulling mechanism is suitable for elbow pipe fittings with one straight section.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms of the lower mold plate 1, the cavity 10, the injection molding channel 11, the secondary glue feeding channel 12, the rib 13, the groove 14, the fixing seat 2, the seesaw 3, the first end 31, the second end 32, the core pulling seat 4, the core pulling rod 40, the first return rod 51, the second return rod 52, the bottom plate 6, the guide post 7, etc. are used more frequently, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention and should not be interpreted as imposing any additional limitations that are contrary to the spirit of the present invention.

Claims

1. The utility model provides a two elbow mould core pulling structures of growing up, includes cope match-plate pattern (1) and lower bolster (2), be equipped with upper die benevolence (10) in cope match-plate pattern (1), be equipped with lower mould benevolence (20) in lower bolster (2), go up mould benevolence (10) and have two die cavities (100) that are used for the shaping elbow pipe fitting between lower mould benevolence (20), the one end of every die cavity (100) is equipped with first mechanism (3) of loosing core, and the other end is equipped with second mechanism (4) of loosing core, its characterized in that: the core pulling mechanism is characterized in that the cavity (100) at least comprises an arc-shaped section (101) and a first straight section (102) arranged at one end of the arc-shaped section (101), the first core pulling mechanism (3) comprises a first straight core (30) which is positioned in the first straight section (102) of the cavity (100) in a mold closing state, the first straight core (30) is positioned at one end of the cavity (100) and extends axially, a forming surface (300) corresponding to the arc-shaped section (101) is arranged on one side, close to the outer arc of the arc-shaped section (101), of the first straight core (30), and an arc surface (400) matched with the inner end of the first straight core (30) is arranged at the inner end of the second core pulling mechanism (4).

2. The core pulling structure for the die with the two large and large elbows according to claim 1, wherein: the core pulling device is characterized in that the cavity (100) comprises an arc-shaped section (101), a first straight section (102) and a second straight section (103) which are connected to two ends of the arc-shaped section (101) respectively, the second core pulling mechanism (4) comprises a second straight core (41), a guide rod (42) which is movably arranged in the second straight core (41) along the axial direction and an arc-shaped core (40) which is connected to the inner side end of the guide rod (42), and the inner side of the arc-shaped core (40) is provided with the arc surface (400) which is matched with the inner end of the first straight core (30).

3. The core pulling structure for the die with the two large and large elbows according to claim 1, wherein: the first core pulling mechanism (3) further comprises a first slide way (31) arranged on the outer side of the lower template (2), and the first straight core (30) is matched with the first slide way (31).

4. The core pulling structure for the die with the two large and large elbows according to claim 2, wherein: the second core pulling mechanism (4) further comprises a second slide way (43) arranged on the outer side of the lower template (2), and the second straight core (41) is matched with the second slide way (43).

5. The core pulling structure for the die with the two large and large elbows according to claim 2, wherein: the outer end of the arc-shaped core (40) is connected with the guide rod (42) through an inserted rod (44) arranged in the radial direction.

6. The core pulling structure for the die with the two large and large elbows according to claim 1, wherein: the two cavities (100) are symmetrically arranged along the central line of the lower mold core (20).

7. The core pulling structure for the die with the two large and large elbows according to claim 1, wherein: the upper mold core (10) and the lower mold core (20) are provided with a flow passage (110), the flow passage (110) is communicated with the two mold cavities (100), and the flow passage (110) is connected with the outer arc surface of the arc section (101) of the mold cavity (100) close to the first straight section (102).

8. The core pulling structure for the die with the two large and large elbows according to claim 1, wherein: the bottom of the lower template (2) is provided with an ejection mechanism (5), the ejection mechanism (5) comprises an ejection plate (50) and an ejector rod (51) arranged on the ejection plate (50), and the top end of the ejector rod (51) is connected with the cavity (100).

9. The core pulling structure for the die with the two large and large elbows according to claim 1, wherein: the second core pulling mechanism (4) comprises an arc-shaped core (40), and the inner side of the arc-shaped core (40) is provided with the arc surface (400) matched with the inner end of the first straight core (30).