CN211843048U

CN211843048U - Mould cylinder device of vertical injection molding machine

Info

Publication number: CN211843048U
Application number: CN202020173850.2U
Authority: CN
Inventors: 万志明
Original assignee: SHENZHEN XINJINLI MACHINERY CO Ltd
Current assignee: SHENZHEN XINJINLI MACHINERY CO Ltd
Priority date: 2020-02-14
Filing date: 2020-02-14
Publication date: 2020-11-03
Anticipated expiration: 2030-02-14

Abstract

The utility model discloses a mould jar device of vertical injection molding machine. The die cylinder comprises a die cylinder body, a die cylinder mandrel, a rear end flange, a rear end oil seal, a front end flange, a front end oil seal, a plurality of rear end locking screws and a plurality of front end locking screws; a rear end locking hole distributed around the central axis of the die cylinder body is formed in the port surface of the rear port of the die cylinder body, and a body of the rear end locking screw penetrates through the rear end flange and is inserted, combined and locked in the corresponding rear end locking hole; the front end locking holes distributed around the central axis of the die cylinder body are formed in the port surface of the front port of the die cylinder body, and the body of the front end locking screw penetrates through the front end flange and then is inserted, combined and locked in the corresponding front end locking hole. The rear end flange and the front end flange are respectively attached and fastened with the front end and the rear end of the die cylinder body through respective locking screws, so that the problem of so-called deflection distortion does not exist between the rear end flange and the front end flange, the assembly difficulty of the die cylinder device can be effectively reduced, the phenomenon that an oil seal is abraded due to assembly deviation can be effectively reduced, and the oil leakage and oil leakage probability is greatly reduced.

Description

Mould cylinder device of vertical injection molding machine

Technical Field

The utility model belongs to the technical field of injection moulding equipment technique and specifically relates to a mould jar device of vertical injection molding machine.

Background

Fig. 1 and 2 show a mold cylinder device of a conventional injection molding apparatus (especially a vertical injection molding machine), which mainly comprises a mold cylinder body 1, a mold cylinder mandrel 2 coaxially inserted into the mold cylinder body 1 from the front end of the mold cylinder body 1, a rear flange 3 inserted into and covering the rear end of the mold cylinder body 1 from the rear end of the mold cylinder body 1, a rear oil seal 4 sleeved on the rear flange 3 and clamped between the rear end of the mold cylinder body 1 and the rear flange 3, a front flange 5 sleeved on the mold cylinder mandrel 2 and covering the front end of the mold cylinder body 1, a front oil seal 6 sleeved on the front flange 5 and clamped between the front end of the mold cylinder body 1 and the front flange 5, and a plurality of axial pull rods 7 uniformly distributed around the mold cylinder body 1; the rear end of the axial pull rod 7 is screwed and locked on the rear end flange 3, the front end of the axial pull rod penetrates through the front end flange 5 and is locked with the front end flange 5 through a spring washer 8 and a locking nut 9, and therefore the front end flange 5 and the rear end flange 3 are locked into a whole by the axial pull rod 7, the die cylinder body 1 is firmly clamped between the front end flange 5 and the rear end flange 3, and finally the whole die cylinder device is assembled.

However, the foregoing cylinder device has the following drawbacks: in the actual assembly process of the mold cylinder, due to the technical experience difference of operators, the problem that the coaxiality of hole positions (namely hole positions for inserting the axial pull rod 7) on the front end flange 5 and the rear end flange 3 is insufficient or the angle deviation occurs frequently occurs, so that the axial pull rod 7 is inclined and deviated due to the fact that the axial pull rod 7 cannot be kept parallel to the axial direction of the mold cylinder body 1, when the axial pull rod 7 is locked by the spring washer 8 and the locking nut 9, the front end flange 5 or the rear end flange 3 is often subjected to uneven stress to form a large structural gap between the front end flange 5 or the rear end flange and the mold cylinder body 1, and further the oil leakage phenomenon occurs at the front end and/or the rear end of the mold cylinder body 1; meanwhile, the whole assembly quality of the die cylinder depends on the technical experience of operators, so that the assembly quality cannot be guaranteed, and the assembly process is time-consuming and labor-consuming.

SUMMERY OF THE UTILITY MODEL

To the deficiencies of the prior art, an object of the utility model is to provide a mould jar device of vertical injection molding machine.

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

a mould cylinder device of a vertical injection molding machine comprises a mould cylinder body, a mould cylinder core shaft which is coaxially inserted into the mould cylinder body from the front end of the mould cylinder body, a rear end flange which is inserted into and covers the rear end port of the mould cylinder body from the rear end of the mould cylinder body, a rear end oil seal which is sleeved on the rear end flange and clamped between the rear end port and the rear end flange of the mould cylinder body, a front end flange which is sleeved on the mould cylinder core shaft and covers the front end port of the mould cylinder body, and a front end oil seal which is sleeved on the front end flange and clamped between the front end port and the front end flange of the mould cylinder body; the device also comprises a plurality of rear-end locking screws and a plurality of front-end locking screws;

the end port surface of the rear end port of the die cylinder body is provided with a plurality of rear end locking holes distributed around the central axis of the die cylinder body, and the body of the rear end locking screw penetrates through the rear end flange and then is inserted and locked in the corresponding rear end locking hole;

the front end locking screw is characterized in that a plurality of front end locking holes distributed around the central axis of the die cylinder body are formed in the port face of the front port of the die cylinder body, and the body of the front end locking screw penetrates through the front end flange and then is inserted and locked in the corresponding front end locking hole.

Preferably, the peripheral wall of the die cylinder body is provided with at least one oil nozzle communicated with the inner space of the die cylinder body.

Due to the adoption of the scheme, the rear end flange and the front end flange of the utility model are respectively attached and fastened with the front end and the rear end of the die cylinder body and are locked by respective locking screws, so that the problem of so-called oblique distortion does not exist between the rear end flange and the front end flange, thereby not only effectively reducing the assembly difficulty of the die cylinder device and achieving the effect of time and labor saving, but also effectively reducing the phenomenon of abrasion of an oil seal due to assembly deviation because the die cylinder core shaft slides very smoothly in the die cylinder body, and greatly reducing the oil leakage and oil leakage probability of the die cylinder device; the novel electric heating cooker has the advantages of simple and compact structure, convenience and rapidness in assembly, time saving and labor saving, and very high practical value and market popularization value.

Drawings

FIG. 1 is an exploded axial structural view of a prior art die cylinder assembly;

FIG. 2 is a schematic axial sectional view of a prior art die cylinder assembly;

fig. 3 is an exploded view of the axial structure of an embodiment of the present invention;

fig. 4 is a schematic axial sectional view of an embodiment of the present invention.

Detailed Description

The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.

As shown in fig. 3 and 4, the mold cylinder device of the vertical injection molding machine provided in this embodiment includes a mold cylinder body 1, a mold cylinder core shaft 2 coaxially inserted into the mold cylinder body 1 from the front end of the mold cylinder body 1, a rear end flange 3 inserted into and covering the rear port of the mold cylinder body 1 from the rear end of the mold cylinder body 1, a rear end oil seal 4 sleeved on the rear end flange 3 and clamped between the rear port of the mold cylinder body 1 and the rear end flange 3, a front end flange 5 sleeved on the mold cylinder core shaft 2 and covering the front port of the mold cylinder body 1, a front end oil seal 6 sleeved on the front end flange 5 and clamped between the front port of the mold cylinder body 1 and the front end flange 5, a plurality of rear end locking screws 10, and a plurality of front end locking screws 11; a plurality of rear end locking holes 12 distributed around the central axis of the die cylinder body 1 are formed in the port surface of the rear port of the die cylinder body 1, and the body of the rear end locking screw 10 penetrates through the rear end flange 3 and then is inserted and locked in the corresponding rear end locking hole 12; meanwhile, a plurality of front end locking holes 13 distributed around the central axis of the die cylinder body 1 are formed in the port surface of the front port of the die cylinder body 1, and the body of the front end locking screw 11 penetrates through the front end flange 5 and then is inserted and locked in the corresponding front end locking hole 13.

Therefore, when the die cylinder device is assembled, the rear end oil seal 4 can be firstly arranged at the front end side of the rear end flange 3, then the rear end flange 3 is inserted and covered on the rear end port of the die cylinder body 1 so as to eliminate the gap between the rear end port of the die cylinder body 1 and the rear end flange 3 by using the rear end oil seal 4, and finally the rear end flange 3 is firmly locked on the die cylinder body 1 by using the matching of the rear end locking screw 10 and the rear end locking hole 12; thirdly, inserting the die cylinder mandrel 2 into the die cylinder body 1 from the front end of the die cylinder body 1 and assembling the front end flange 5 and the front end oil seal 6 according to the assembly mode of the rear end flange 3 and the rear end oil seal 4, so that the front end flange 5 is firmly locked on the die cylinder body 1 by utilizing the matching of the front end locking screw 11 and the front end locking hole 13; in the whole assembly process, the rear end flange 3 and the front end flange 5 are respectively attached and fastened with the front end and the rear end of the die cylinder body 1 and are locked by respective locking screws, so that the problem of so-called skew distortion does not exist between the rear end flange 3 and the front end flange, namely, the front flange and the rear flange do not need to be adjusted and maintained coaxially like the traditional die cylinder device, the assembly difficulty of the die cylinder device can be effectively reduced, the time-saving and labor-saving effects are achieved, the die cylinder core shaft 2 slides very smoothly in the die cylinder body 1, the phenomenon that an oil seal is abraded due to assembly deviation can be effectively reduced, and the oil leakage and oil leakage probability of the die cylinder device is greatly reduced.

In view of the limitation of the thinness of the peripheral wall of the die cylinder body 1 of the conventional die cylinder device, a corresponding hole position lengthening structure needs to be welded on the peripheral wall of the die cylinder body 1 in advance so as to insert and weld the oil nozzle on the die cylinder body 1; however, the inner wall of the mold cylinder 1 is easily deformed during the welding process, which not only affects the cylindricity of the mold cylinder 1, but also increases the risk of oil leakage due to the fact that the weld seam or the desoldering seam is located inside the mold cylinder 1. In view of this, since the die cylinder body 1 of the present embodiment needs to be provided with corresponding lock holes, the wall thickness of the die cylinder body 1 of the present embodiment is increased to a greater extent than that of the conventional die cylinder, so that the sufficient wall thickness of the die cylinder body 1 of the present embodiment is fully utilized to directly provide the oil nozzles 14 on the peripheral wall of the die cylinder body 1. Therefore, the processes such as welding and the like do not exist, and series problems caused by welding are avoided.

In addition, in order to facilitate quick assembly or disassembly of the entire cylinder device for maintenance, the rear locking screw 10 of the present embodiment is preferably an inner hexagonal screw, and the front locking screw 11 is preferably an outer hexagonal screw. So, when fastening the locking screw, only need with the lockhole that corresponds carry out centering operation can, compare in the mode that traditional mould jar device adopted pull rod locking, the operation is more simple and convenient, the degree of difficulty is littleer.

The above only is the preferred embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent flow changes made by the contents of the specification and the drawings, or directly or indirectly applied to other related technical fields, are included in the same way in the protection scope of the present invention.

Claims

1. A mold cylinder device of a vertical injection molding machine comprises a mold cylinder body (1), a mold cylinder mandrel (2) which is coaxially inserted into the mold cylinder body (1) from the front end of the mold cylinder body (1), a rear end flange (3) which is inserted and covered on the rear end port of the mold cylinder body (1) from the rear end of the mold cylinder body (1), a rear end oil seal (4) which is sleeved on the rear end flange (3) and clamped between the rear end port of the mold cylinder body (1) and the rear end flange (3), a front end flange (5) which is sleeved on the mold cylinder mandrel (2) and covered on the front end port of the mold cylinder body (1), and a front end oil seal (6) which is sleeved on the front end flange (5) and clamped between the front end port of the mold cylinder body (1) and the front end flange (5); the method is characterized in that: the device also comprises a plurality of rear-end locking screws (10) and a plurality of front-end locking screws (11);

a plurality of rear end locking holes (12) distributed around the central axis of the die cylinder body (1) are formed in the port surface of the rear port of the die cylinder body (1), and the body of the rear end locking screw (10) penetrates through the rear end flange (3) and then is inserted, combined and locked in the corresponding rear end locking hole (12);

the front end locking structure is characterized in that a plurality of front end locking holes (13) distributed around the central axis of the die cylinder body (1) are formed in the port face of the front port of the die cylinder body (1), and a body of the front end locking screw (11) penetrates through the front end flange (5) and then is inserted into and locked in the corresponding front end locking hole (13).

2. The cylinder device of a vertical injection molding machine according to claim 1, wherein: the peripheral wall of the die cylinder body (1) is provided with at least one oil nozzle (14) communicated with the inner space of the die cylinder body (1).