CN211843017U

CN211843017U - Two-plate mold front mold slide core pulling structure

Info

Publication number: CN211843017U
Application number: CN201922282126.3U
Authority: CN
Inventors: 冯松伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-11-03
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses a two-plate mold front mould slide core pulling structure, including last mould and lower mould, be equipped with the chamber of moulding plastics on the end lateral wall of last mould, be equipped with the module structure on the up end of lower mould, the symmetry is equipped with two runners of moulding plastics that communicate with the chamber of moulding plastics on the end lateral wall of last mould, four installation pieces of symmetry fixedly connected with on the up end of lower mould. The utility model discloses a two plate structure designs, cooperation draw-in groove and driving motor have reduced a die sinking, and normal three-plate mould takes off the front mould by the slider structure, and this structure needs more to open a mould, and bicolor mould, jumbo size mould, and more open a mould, production efficiency can receive great influence, so this two-plate mould front mould position of loosing core structure can accomplish the drawing of core drawing of patterns operation before the die sinking, has consequently reduced a die sinking operation to the efficiency of die sinking and the production efficiency of injection moulding product have been improved.

Description

Two-plate mold front mold slide core pulling structure

Technical Field

The utility model relates to an injection mold structure technical field of loosing core especially relates to a two-plate mold front mould line position structure of loosing core.

Background

In the existing plastic products, in order to ensure that the products have complete structures and precise dimensions, the plastic products are generally required to be injection molded by an injection mold. For some special plastic products requiring processing holes, a core-pulling structure is usually required on the injection mold.

The existing injection mold generally adopts a sliding block structure to drive a core-pulling structure, so that in the mold opening process, the sliding block structure is utilized to drive the core-pulling structure to complete core-pulling and demolding, and therefore, one mold is required to be opened more than once when the mold is opened, the mold opening times are increased, and one mold is opened more than once, so that the injection molding production efficiency of plastic products is greatly influenced.

SUMMERY OF THE UTILITY MODEL

The purpose of the utility model is to solve the shortcoming that exists among the prior art, if: the existing injection mold generally adopts a sliding block structure to drive a core-pulling structure, so that in the mold opening process, the sliding block structure is utilized to drive the core-pulling structure to complete core-pulling and demolding, and therefore, one mold is required to be opened more than once when the mold is opened, the mold opening times are increased, and one mold is opened more than once, so that the injection molding production efficiency of plastic products is greatly influenced.

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

a front mold position core pulling structure of a two-plate mold comprises an upper mold and a lower mold, wherein an injection molding cavity is arranged on the bottom side wall of the upper mold, a module structure is arranged on the upper end surface of the lower mold, two injection molding runners communicated with the injection molding cavity are symmetrically arranged on the bottom side wall of the upper mold, four mounting blocks are symmetrically and fixedly connected to the upper end surface of the lower mold, a positioning device is arranged between the upper mold and the lower mold, and the upper mold and the lower mold are buckled together by virtue of the positioning device;

install the structure of loosing core on the lateral wall of lower mould, the structure of loosing core includes that two are the dog that the symmetry set up, two the equal fixed connection of dog is on the lateral wall of lower mould, be equipped with the spout on the up end of dog, sliding connection has the ejector pin in the spout, the symmetry is equipped with four dead slots on the both sides lateral wall of last mould, four all be equipped with the spacing groove on one side inner wall of dead slot, sliding connection has the slide bar in the dead slot, the slide bar is equipped with the slot in being close to the one end of dead slot, the joint has the gag lever post in the slot, gag lever post sliding connection is in the spacing groove, spacing groove and injection molding chamber intercommunication, the one end of ejector pin is.

Preferably, the module structure includes that two are the cushion that the symmetry set up, two equal fixed connection of cushion is on the up end of lower mould, fixedly connected with mould on the up end of cushion, be equipped with the locating hole that runs through the mould in the mould.

Preferably, positioner includes six holding rings that are the symmetry and set up, six the holding ring all sets up on the end lateral wall of last mould, six all be equipped with the screw hole that runs through last mould in the holding ring, be equipped with the screw hole corresponding with the holding ring on the lower mould.

Preferably, drive arrangement includes the draw-in groove, the draw-in groove sets up on one of ejector pin, the joint has the fixture block in the draw-in groove, fixedly connected with dead lever on the lateral wall of ejector pin is kept away from to the fixture block, the dead lever is kept away from one of fixture block and is served fixedly connected with mounting panel, the mounting panel is kept away from and is equipped with the thread groove on one lateral wall of dead lever, thread groove female connection has the threaded rod, the threaded rod is kept away from one of mounting panel and is served fixedly connected with driving motor, driving motor is close to the fixedly connected with setting element on the lateral wall of mounting panel.

Preferably, a point gate is arranged at the joint of the injection molding runner and the injection molding cavity.

Preferably, the ejector pin is equipped with two inclined planes on being close to a lateral wall of lower mould, the slide bar is close to the one end of ejector pin and is the scarf setting, the slide bar is kept away from the one end of last mould and is supported on the inclined plane.

The utility model has the advantages that: through two plate structure design, cooperation draw-in groove and driving motor have reduced a die sinking, and normal three-plate mould takes off the front mould by the slider structure, need open a mould more than this structure, and the bicolor mould, jumbo size mould, open a mould more, and production efficiency can receive great influence, so this two-plate mould front mould slide core pulling structure can accomplish the operation of loosing core before the die sinking, has consequently reduced a die sinking operation to the efficiency of die sinking and the production efficiency of injection moulding product have been improved.

Drawings

Fig. 1 is a three-dimensional perspective view of a two-plate mold front mold slide core pulling structure provided by the present invention;

fig. 2 is a perspective view of an upper die structure of a two-plate die front die position core pulling structure provided by the present invention;

fig. 3 is the utility model provides a two former front mould line position structure of loosing core's lower mould structure sketch map.

In the figure: the device comprises an upper die 1, a lower die 2, an injection molding cavity 3, a cushion block 4, a die 5, an injection molding runner 6, a mounting block 7, a positioning ring 8, a hollow groove 9, a limiting groove 10, a sliding rod 11, a slot 12, a limiting rod 13, a stop block 14, a top rod 15, an inclined plane 16, a clamping groove 17, a clamping block 18, a fixing rod 19, a mounting plate 20, a positioning piece 21 and a driving motor 22.

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. 1-3, a two-plate mold front mold position core pulling structure comprises an upper mold 1 and a lower mold 2, wherein an injection molding cavity 3 is arranged on the bottom side wall of the upper mold 1, a module structure is arranged on the upper end face of the lower mold 2, the module structure comprises two cushion blocks 4 which are symmetrically arranged, the two cushion blocks 4 are fixedly connected to the upper end face of the lower mold 2, a mold 5 is fixedly connected to the upper end face of the cushion blocks 4, a positioning hole penetrating through the mold 5 is arranged in the mold 5, and two injection molding flow channels 6 communicated with the injection molding cavity 3 are symmetrically arranged on the bottom side wall of the upper mold 1.

The runner 6 of moulding plastics is equipped with a little runner with the junction of moulding plastics chamber 3, use some runner as the mouth of moulding plastics, it is very nimble to confirm the position of runner, can make the velocity of flow increase when the melting plastics flow passes through the runner, in addition the effect of friction, the temperature that the plastics flowed risees, thus, can obtain the appearance clear, the piece of moulding of surperficial gloss, and the some runner can break automatically after the die sinking, be favorable to automated operation, and after getting rid of the runner, the vestige that leaves on the piece of moulding is unobvious, do not influence the pleasing to the eye on the piece surface of moulding, four installation pieces 7 of symmetry fixedly connected with on the up end of.

Go up and be equipped with positioner between mould 1 and the lower mould 2, positioner includes six holding rings 8 that are the symmetry and set up, six holding rings 8 all set up on the end lateral wall of last mould 1, all be equipped with the screw hole that runs through last mould 1 in six holding rings 8, be equipped with the screw hole corresponding with holding ring 8 on the lower mould 2, with the help of the bolt, can be through the threaded connection effect between bolt and the screw hole, the pressfitting that will go up mould 1 firmly is on lower mould 2, make and go up mould 1 and lower mould 2 fixed connection together, thereby make the leakproofness of moulding plastics chamber 3 good, because it fixes to adopt threaded connection's mode, consequently, it is all very convenient to dismantle the installation, thereby the die sinking operation has been.

Go up mould 1 and lower mould 2 and be in the same place with the help of positioner lock, install the structure of loosing core on the lateral wall of lower mould 2, the structure of loosing core includes that two are the dog 14 that the symmetry set up, two equal fixed connection of dog 14 are on the lateral wall of lower mould 2, be equipped with the spout on the up end of dog 14, sliding connection has ejector pin 15 in the spout, it is equipped with four dead slots 9 to go up the symmetry on the both sides lateral wall of mould 1, all be equipped with spacing groove 10 on one side inner wall of four dead slots 9, sliding connection has slide bar 11 in the dead slot 9, slide bar 11 is equipped with slot 12.

The limiting rod 13 is connected in the slot 12 in a clamping mode, the limiting rod 13 is connected in the limiting groove 10 in a sliding mode, a jack corresponding to the limiting rod 13 is arranged on the die 5, when one end of the limiting rod 13 is inserted into the jack, machining of an upper hole of an injection molding product can be completed through the limiting rod 13, the limiting groove 10 is communicated with the injection molding cavity 3, two inclined planes 16 are arranged on one side wall, close to the lower die 2, of the ejector rod 15, one end, close to the ejector rod 15, of the slide rod 11 is arranged in a chamfered plane mode, and one end, far away from the upper die 1, of the.

During die assembly, when the ejector rod 15 slides along the slide groove on the stop block 14, under the extrusion of the inclined plane 16 of the side wall of the ejector rod 15, the slide rod 11 slides along the empty groove 9, thereby pushing the limiting rod 13 to slide along the limiting groove 10, and inserting one end of the limiting rod 13 close to the die 5 into the through hole on the side wall of the die 5, so as to complete the processing of the upper hole of the injection product, one end of the ejector rod 15 is provided with a driving device, the driving device comprises a clamping groove 17, the clamping groove 17 is arranged at one end of the ejector rod 15, a clamping block 18 is clamped in the clamping groove 17, and the clamping block 18 is far away from a fixed rod.

One of dead lever 19 is kept away from fixture block 18 and is served fixedly connected with mounting panel 20, be equipped with the thread groove on the lateral wall that dead lever 19 was kept away from to mounting panel 20, thread groove female connection has the threaded rod, one of mounting panel 20 was kept away from to the threaded rod serves fixedly connected with driving motor 22, driving motor 22 is step motor (step motor belongs to prior art, its theory of operation and connected mode do not do detailed description here again), driving motor 22 is close to fixedly connected with setting element 21 on the lateral wall of mounting panel 20, the threaded rod runs through setting element 21.

The lower die 2 and the positioning piece 21 are both fixed on a workbench (not shown), then the driving motor 22 is started, the driving motor 22 drives the threaded rod to rotate, so that the limiting effect of the clamping groove 17 on the clamping block 18 is utilized to limit the fixed rod 19 from rotating, the mounting plate 20 is driven by the rotation of the threaded rod, the ejector rod 15 is driven by the fixed rod 19 to slide along the sliding groove, the inclined surface 16 of one side wall of the ejector rod 15 extrudes the sliding rod 11, and the limiting rod 13 is inserted into the inserting hole in the die 5.

When accomplishing the loose core of moulding plastics, start driving motor 22 and reverse, thereby drive ejector pin 15 and reset, inclined plane 16 no longer extrudes slide bar 11 this moment, through pulling slide bar 11 after that, take gag lever post 13 out, can accomplish the drawing of core drawing the drawing of patterns, this structure of loosing core adopts two plate structure designs, through draw-in groove 17 and driving motor 22, once die sinking has been reduced, normal three-plate mould is taken off the front mould by the slider structure, this structure needs to open the mould more, and the double-colored mould, jumbo size mould, open the mould more, production efficiency can receive great influence, so this two-plate mould front mould slide core structure can accomplish the drawing of patterns operation of loosing core before the die sinking, consequently, once die sinking operation has been reduced, thereby the efficiency of die sinking and the production efficiency of injection moulding product have been improved.

In the utility model, the upper die 1 and the lower die 2 can be fixedly connected together by means of bolts, then the driving motor 22 is started, the driving motor 22 drives the threaded rod to rotate, so that the mounting plate 20 is driven to drive the fixing rod 19 by means of the threaded connection effect, the ejector rod 15 is driven to slide along the sliding groove on the stop block 14, the inclined plane 16 on the side wall of the ejector rod 15 extrudes the slide rod 11, the slide rod 11 enters the empty groove 9, the limiting rod 13 is driven to slide along the limiting groove 10, one end of the limiting rod 13 is inserted into the inserting hole on the die 5, and the die assembly is completed;

injecting raw materials into the injection molding cavity 3 along the injection molding runner 6, finishing the processing of an upper eyelet of an injection molding product by virtue of the limiting rod 13, starting the driving motor 22 to rotate reversely after cooling molding, so as to drive the ejector rod 15 to reset, the inclined plane 16 does not extrude the slide rod 11 any more, then drawing out the limiting rod 13 by pulling the slide rod 11, and finishing core-pulling and demolding before mold opening.

The utility model discloses a two plate structure designs, cooperation draw-in groove 17 and driving motor 22 have reduced a die sinking, and normal three-plate mould takes off the front mould by the slider structure, and more this structure need open a mould more, and bicolor mould, jumbo size mould, open a mould more, and production efficiency can receive great influence, so this two-plate mould front mould line position core pulling structure can accomplish the drawing of patterns operation of loosing core before the die sinking, has consequently reduced a die sinking operation to the efficiency of die sinking and the production efficiency of injection moulding product have been improved.

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.

Claims

1. A two-plate mold front mold slide core pulling structure comprises an upper mold (1) and a lower mold (2), and is characterized in that an injection molding cavity (3) is formed in the bottom side wall of the upper mold (1), a module structure is arranged on the upper end face of the lower mold (2), two injection molding runners (6) communicated with the injection molding cavity (3) are symmetrically arranged on the bottom side wall of the upper mold (1), four mounting blocks (7) are symmetrically and fixedly connected to the upper end face of the lower mold (2), a positioning device is arranged between the upper mold (1) and the lower mold (2), and the upper mold (1) and the lower mold (2) are buckled together by means of the positioning device;

the outer side wall of the lower die (2) is provided with a core pulling structure, the core pulling structure comprises two symmetrically arranged stop blocks (14), the two stop blocks (14) are both fixedly connected to the outer side wall of the lower die (2), a sliding groove is arranged on the upper end surface of the stop block (14), a mandril (15) is connected in the sliding groove in a sliding way, four empty grooves (9) are symmetrically arranged on the side walls of the two sides of the upper die (1), a limiting groove (10) is arranged on the inner wall of one side of each empty groove (9), a sliding rod (11) is connected in the empty groove (9) in a sliding way, a slot (12) is arranged in one end of the sliding rod (11) close to the empty groove (9), a limiting rod (13) is clamped in the slot (12), the limiting rod (13) is connected in the limiting groove (10) in a sliding way, the limiting groove (10) is communicated with the injection molding cavity (3), and one end of the ejector rod (15) is provided with a driving device.

2. The front mold slide core pulling structure of the two-plate mold according to claim 1, wherein the mold set structure comprises two symmetrically arranged cushion blocks (4), both cushion blocks (4) are fixedly connected to the upper end surface of the lower mold (2), a mold (5) is fixedly connected to the upper end surface of the cushion block (4), and a positioning hole penetrating through the mold (5) is formed in the mold (5).

3. The front mold slide core pulling structure of the two-plate mold according to claim 1, wherein the positioning device comprises six positioning rings (8) symmetrically arranged, the six positioning rings (8) are all arranged on the bottom side wall of the upper mold (1), threaded holes penetrating through the upper mold (1) are all arranged in the six positioning rings (8), and threaded holes corresponding to the positioning rings (8) are arranged on the lower mold (2).

4. The front mold slide core pulling structure of a two-plate mold according to claim 1, the driving device comprises a clamping groove (17), the clamping groove (17) is arranged at one end of the ejector rod (15), a clamping block (18) is clamped in the clamping groove (17), a fixing rod (19) is fixedly connected to one side wall of the clamping block (18) far away from the ejector rod (15), one end of the fixed rod (19) far away from the clamping block (18) is fixedly connected with a mounting plate (20), a thread groove is arranged on one side wall of the mounting plate (20) far away from the fixed rod (19), a threaded rod is connected with the inner thread of the threaded groove, a driving motor (22) is fixedly connected with one end of the threaded rod far away from the mounting plate (20), the driving motor (22) is close to a side wall of the mounting plate (20) and is fixedly connected with a positioning piece (21), and the threaded rod penetrates through the positioning piece (21).

5. The front mold slide core pulling structure of the two-plate mold according to claim 1, wherein a point gate is arranged at the joint of the injection runner (6) and the injection cavity (3).

6. The front mold slide core pulling structure of the two-plate mold according to claim 1, wherein two inclined planes (16) are arranged on one side wall of the ejector rod (15) close to the lower mold (2), one end of the sliding rod (11) close to the ejector rod (15) is arranged in an inclined plane, and one end of the sliding rod (11) far away from the upper mold (1) abuts against the inclined plane (16).