CN213564151U

CN213564151U - Die lifter floating ejection balance mechanism

Info

Publication number: CN213564151U
Application number: CN202021576167.XU
Authority: CN
Inventors: 阳斌; 杨盛林; 李茂君; 席刚; 郭芝忠; 林岗
Original assignee: Baoligen Chengdu Precision Industry Co ltd
Current assignee: Baoligen Chengdu Precision Industry Co ltd
Priority date: 2020-07-31
Filing date: 2020-07-31
Publication date: 2021-06-29
Anticipated expiration: 2030-07-31

Abstract

The utility model provides a mould pushes up ejecting balance mechanism that floats to one side relates to medical instrument mould technical field, and it is including setting up in the template and keeping away from the balancing piece of type chamber end, is provided with the guiding hole that supplies oblique footstock to pass on the balancing piece, and it has the floating distance to reserve between balancing piece and the template, and the balancing piece is connected in the template through making it float apart from gliding relocation mechanism in the floating, is provided with unsteady guiding mechanism on the balancing piece. The problem of among the prior art can't use the balancing piece to push out to the top to one side to the mould that the oblique footstock can't stretch into in the template and lead is solved.

Description

Die lifter floating ejection balance mechanism

Technical Field

The utility model relates to the technical field of medical instrument moulds, especially relate to a mould pushes up ejecting balance mechanism that floats to one side.

Background

The pitched roof is also called a pitched pin, and is a die mechanism used for forming barbs in a product in die forming. In the demolding process of the mold with the inclined top, the ejection mechanism drives the inclined top to move upwards through the inclined top seat to perform demolding, in order to ensure the accuracy of the position of the inclined top to move upwards, the balance block needs to be used for guiding the movement of the inclined top seat, the inclined top ejection balance block of the conventional mold is designed on the mold plate, the inclined top seat needs to stretch into the mold plate in a state of more than 10mm when the inclined top seat is not ejected, but in some molds, due to the limitation of the mold structure, the inclined top seat cannot stretch into the mold plate for a long distance, for example, a mold for molding fine products is formed, the thickness of the mold plate cannot provide enough space for installing the balance block, in the mold, the conventional inclined top ejection balance block structure cannot guide the inclined top seat to cause the balance block to be incapable of being applied, and the demolding quality of the.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned problem among the prior art, the utility model provides a mould pushes up ejecting balance mechanism that floats to one side has solved among the prior art and can't use the balancing piece to pushing up ejecting the problem of leading to one side to the mould in can't stretching into the template to one side footstock.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows:

the utility model provides a mould pushes up ejecting balance mechanism that floats to one side, it is including setting up in the template far away from the balancing piece of type chamber end, is provided with the guiding hole that supplies oblique footstock to pass on the balancing piece, reserves the floating distance between balancing piece and the template, and the balancing piece is connected on the template through the floating mechanism that can make it slide in the floating distance, is provided with the guiding mechanism that floats on the balancing piece.

The utility model has the advantages that: the balancing piece that will lead to oblique footstock sets up the one end of keeping away from the die cavity at the template, does not occupy the space of template towards die cavity one end to the thickness that makes the balancing piece through floating mechanism equals the balancing piece adds the floating distance, is guaranteeing to push up ejecting balanced in-process to one side, has saved the mould space greatly, has reduced the thickness of template, and then has reduced the manufacturing cost of mould.

Meanwhile, because the thickness of the template is reduced, a relatively small machine table can be selected in the molding process of the mold so as to save the production cost of the product. For example, for a smaller product, if a large machine can only be selected if the template is thick, during injection molding production, the rubber material melted in the charging barrel cannot be used up within a certain time, and the performance of the rubber material changes at a high temperature for a long time, so that the product quality is affected, and the rejection rate is increased.

Drawings

Fig. 1 is a schematic sectional structure view of a die lifter floating ejection balancing mechanism.

Fig. 2 is a schematic perspective view of a die lifter floating ejection balancing mechanism.

FIG. 3 is a schematic view of the ejector plate contacting the counterbalance.

FIG. 4 is a schematic diagram of the counterweight moving up to its limit position.

Wherein, 1, a template; 11. ejecting a limit groove from the inclined top; 2. a counterbalance; 21. a guide hole; 3. a floating mechanism; 31. a limiting rod; 32. a limiting baffle disc; 33. a threaded hole; 4. a floating guide mechanism; 41. a guide post; 42. a guide sleeve; 5. a slanted ejecting seat; 6. an elastic device; 61. a spring slot; 7. a floating distance; 8. ejecting the plate; 9. and (5) obliquely ejecting.

Detailed Description

The following description of the embodiments of the present invention is provided to facilitate the understanding of the present invention by those skilled in the art, but it should be understood that the present invention is not limited to the scope of the embodiments, and various changes will be apparent to those skilled in the art as long as they are within the spirit and scope of the present invention as defined and defined by the appended claims, and all inventions contemplated by the present invention are protected.

As shown in fig. 1 and 2, the mold lifter floating ejection balancing mechanism includes a balancing block 2 disposed at a far end of a mold cavity of a mold plate 1, the balancing block 2 is provided with a guide hole 21 for a lifter base 5 to pass through, a floating distance 7 is reserved between the balancing block 2 and the mold plate 1, the balancing block 2 is connected to the mold plate 1 through a floating mechanism 3 capable of sliding in the floating distance 7, and the balancing block 2 is provided with a floating guide mechanism 4.

In a conventional mold, the balance weight 2 is arranged on one side of the mold plate 1 facing the cavity so as to accurately guide the inclined top seat 5 to keep the inclined top seat 5 balanced in the ejection process, the arrangement requires that the mold plate has enough thickness to install the balance weight, and the inclined top seat 5 at least needs to extend into the mold plate by 1 cm to ensure balance. In this scheme, set up balancing piece 2 in template 1 one side far away from the die cavity, can not occupy the inside position of template 1, during oblique footstock 5 also need not stretch into the template before ejecting for the thickness of template only need consider fashioned technical requirement, and need not consider the technical requirement of ejecting structure, can the greatly reduced thickness of template. The template 1 in the scheme is a supporting bottom plate connected to the bottom surface of a lower template (B plate), and a cavity for forming a product is formed between the lower template (B plate) and an upper template (A plate).

The floating mechanism 3 at least comprises two limiting rods 31 with the top ends being adjustably connected to the template 1, a limiting baffle disc 32 is fixed at the bottom end of each limiting rod 31, and the balance block 2 is sleeved on the limiting rods 31 in a sliding mode and supported through the limiting baffle discs 32. Preferably, a non-full threaded hex bolt is used as the stop rod 31 and a hexagonal disc at the end is used as the stop plate 32. The non-full-thread hexagon bolt means that only external threads connected with the threaded holes 33 on the template 1 are processed on the limiting rod 31 from the top end to the middle part, and the limiting rod 31 between the middle part and the limiting stop disc 22 is a polished rod, so that the balance block 2 is in sliding sleeve connection.

The number and the positions of the limiting rods 31 are set to meet the requirement that the balance weight 2 is always in a horizontal state. For example, the balance weight 2 is a rectangular block, and the four right angles of the rectangular block are respectively provided with one limiting rod 31, and the four limiting rods 31 are symmetrically arranged relative to the central axis of the rectangular block.

An inclined ejection limiting groove 11 for embedding the balance block 2 is formed in the bottom surface of the template 1, and a gap is reserved between the inner wall of the inclined ejection limiting groove 11 and the outer wall of the balance block 2. The top surface of the inclined top ejection limiting groove 11 is used as the limiting end surface of the maximum distance that the inclined top 9 can move upwards.

The floating mechanism 3 is provided with an elastic device 6 for returning the balance weight 2 to the initial position. The elastic device 6 can help the balance weight 2 to automatically return to the initial position after sliding along the floating distance 7 so as to wait for the next use, thereby improving the reliability.

The elastic device 6 is a pressure spring, a spring groove 61 for inserting and abutting the lower end of the pressure spring is arranged on the balance block 2, the upper end of the pressure spring abuts against the template 1, and specifically, the upper end of the pressure spring abuts against the top surface of the inclined ejection limiting groove 11. The balancing piece 2 moves up the in-process along the gag lever post 31 axial, can compress the pressure spring, and when 2 external forces of balancing pieces lost, the pressure spring recovered deformation with balancing piece 2 propelling movement to initial position, and when 2 initial position of balancing piece indicated 2 bottom surfaces of balancing piece and spacing fender dish 32 butt, at initial position, the pressure spring was in natural noncompression state.

The floating guide mechanism 4 comprises a guide post 41 fixed on the template 1, the guide post 41 penetrates through the top end of the template 1 and extends towards the lower part of the template 1, a guide sleeve 42 is sleeved on the part, located below the template 1, of the guide post 41, the guide sleeve 42 is in clearance fit with the guide post 41, and the guide sleeve 42 is fixedly connected with the balance block 2. In the sliding process of the balance weight 2 along the limiting rod 31, the balance weight 2 is guided by the guide function of the guide post 41 on the guide sleeve 42.

The guide sleeve 42 is embedded in the balance block 2, and the top surface and the bottom surface of the guide sleeve 42 are respectively flush with the top surface and the bottom surface of the balance block 2, so that the structure is more compact, and the volume of the whole die is reduced.

The top end and the bottom end of the inclined top seat 5 are respectively fixedly connected with an inclined top 9 and an ejector plate 8, and the inclined top 9 obliquely penetrates through the balance block 2 and the template 1 in sequence and is led into the cavity. The top surface of the ejector plate 8 can be abutted against the bottom surface of the balance block 2, so that a via hole for the guide pillar 41, the limiting baffle disc 32 and the limiting rod 31 to pass through is formed in the ejector plate 8, and the top surface of the ejector plate 8 is always abutted against the bottom surface of the balance block 2 in the process of ejecting the inclined ejector 9.

The working principle of the die lifter floating ejection balance mechanism is as follows: the balancing piece is supported by the pressure spring and is kept motionless when ejecting at the top to one side, 9 and oblique footstock 5 upwards move in balancing piece 2 in proper order, when ejecting plate 8 moves the bottom surface butt of top surface and balancing piece 2, as shown in fig. 3, make balancing piece 2 upwards move together through the compression pressure spring and continue to lead to oblique footstock 5, until the top surface of balancing piece 2 is supported the top surface of ejecting spacing groove 11 of oblique top, as shown in fig. 4, accomplish ejecting of 9 to one side, when ejecting plate 8 retreats, retreat balancing piece 2 is moved back to the initial position through the pressure spring.

Claims

1. The utility model provides a mould pushes up ejecting balance mechanism that floats to one side which characterized in that, is including setting up in template (1) balancing piece (2) far away from type chamber end, be provided with guiding hole (21) that supply oblique footstock (5) to pass on balancing piece (2), balancing piece (2) with reserve between template (1) has floating distance (7), balancing piece (2) through can make its unsteady mechanism (3) of gliding in floating distance (7) connect in on template (1), be provided with unsteady guiding mechanism (4) on balancing piece (2).

2. The mold lifter floating ejection balance mechanism according to claim 1, characterized in that the floating mechanism (3) is provided with an elastic device (6) for returning the balance weight (2) to an initial position.

3. The mold lifter floating ejection balance mechanism according to claim 2, wherein the elastic device (6) is a compression spring, the balance block (2) is provided with a spring groove (61) for inserting and abutting against the lower end of the compression spring, and the upper end of the compression spring abuts against the mold plate (1).

4. The mold lifter floating ejection balance mechanism according to claim 1, wherein the floating mechanism (3) comprises at least two limiting rods (31) with top ends adjustably connected to the mold plate (1), a limiting disc (32) is fixed to the bottom end of each limiting rod (31), and the balance weight (2) is slidably sleeved on the limiting rods (31) and supported by the limiting discs (32).

5. The die lifter floating ejection balancing mechanism according to claim 4, characterized in that the top end of the limiting rod (31) is screwed into a threaded hole (33) provided on the die plate (1).

6. The mold lifter floating ejection balance mechanism according to claim 1, wherein a lifter ejection limiting groove (11) for the balance weight (2) to be embedded is formed in the bottom surface of the mold plate (1), and a gap is formed between the inner wall of the lifter ejection limiting groove (11) and the outer wall of the balance weight (2).

7. The mold lifter floating ejection balance mechanism according to claim 1, wherein the floating guide mechanism (4) comprises a guide post (41) fixed on the mold plate (1), a guide sleeve (42) is slidably sleeved on the guide post (41), and the guide sleeve (42) is fixedly connected with the balance block (2).

8. The mold lifter floating ejection balance mechanism according to claim 7, wherein the guide sleeve (42) is embedded in the balance block (2), and the top surface and the bottom surface of the guide sleeve (42) are flush with the top surface and the bottom surface of the balance block (2), respectively.

9. The mold inclined top floating ejection balance mechanism according to claim 1, wherein the top end and the bottom end of the inclined top seat (5) are respectively and fixedly connected with an inclined top (9) and an ejection plate (8), the inclined top (9) obliquely penetrates through the balance block (2) and the mold plate (1) in sequence to enter the cavity, and the top surface of the ejection plate (8) can be abutted against the bottom surface of the balance block (2).

10. The mold lifter floating ejection balancing mechanism according to claim 1, characterized in that the mold plate (1) is a support bottom plate of a lower mold plate.