CN202985872U

CN202985872U - Drain pipe elbow die

Info

Publication number: CN202985872U
Application number: CN 201220585908
Authority: CN
Inventors: 梁士科; 黄沛锋
Original assignee: GUANGXI WUZHOU WUYI PLASTIC PRODUCT CO Ltd
Current assignee: GUANGXI WUZHOU WUYI PLASTIC PRODUCT CO Ltd
Priority date: 2012-11-08
Filing date: 2012-11-08
Publication date: 2013-06-12
Anticipated expiration: 2022-11-08

Abstract

The utility model discloses a drain pipe elbow die which comprises a fixed module B, a movable module and a fixed module A, wherein the movable module is arranged on the fixed module A in an assembling mode, the lower half portion of the fixed module B is connected with the upper half portion of the movable module, and the fixed module B, the movable module and the fixed module A are connected to form a mandrel of the drain pipe elbow die. The drain pipe elbow die is characterized in that the diameter of the bottom face of a groove of the movable module is less of 3-8mm than the ring of a ring face of a ring body portion of the fixed module B, and the ring face of the ring body portion of the fixed module B and the cylinder face of a plug portion are connected in a panel or a curve mode. After the drain pipe elbow die is executed, the drain pipe elbow die can solve the problems that the top end of a groove edge of the groove of the movable groove in the prior art forms the shape of a sharp blade opening, and the movable module is easily damaged.

Description

The drain pipe elbow mould

Technical field

The utility model relates to injection mold manufacturing technology field, especially a kind of core of plastic draining pipe bend use in injection molding.

Background technology

The plastic draining pipe bend is in order to be connected with straight tube, its two ends are provided with the expansion pipeline section that inserts within it usually, this plastic draining pipe bend is in injection molding process, need one by external mold and be contained in the cavity that core in external mold surrounds a drain pipe elbow, drain pipe elbow is after injection mo(u)lding, and core will be deviate from from the plastic draining pipe bend, because the core of drain pipe elbow also has the little shape in large middle part, two ends, therefore, this core need to be made of a plurality of module combinations.the core of existing this drain pipe elbow has a kind of scheme by hole shape in a profile such as plastic draining pipe bend one end, the stuck-module first of two sections compound formations of cylinder that large the inner, outer end is little, an outer end is the identical cylinder of plastic draining pipe bend termination expansion segment endoporus, inner by being shaped to plastic draining pipe bend bending section outside anchor ring ring body section and the compound stuck-module second that consists of of intercalation part that the outside is the face of cylinder, and the active module that is connected between stuck-module first and stuck-module second consists of, adopt tapered spigot to engage with the mode of cone-shaped plug between active module and stuck-module first, being connected between active module and stuck-module second is that to insert the groove bottom that arranges on active module be the connection of the groove on the face of cylinder to the plug by the barrel portion on stuck-module second, the diameter on the groove face of cylinder is the diameter of plastic draining pipe bend bending section endoporus, as shown in Figure 1 and Figure 2.There is following deficiency in this scheme of prior art: because the diameter on the described groove face of cylinder is the diameter of plastic draining pipe bend bending section endoporus, therefore, the trough rim top of active module groove forms the shape of sharp cutting edge section, these two trough rim tops in use very easily be subject to touching on the one hand collapse lack and cause moulding plastic draining pipe bend air spots neat, when serious, replacing can only be repaired or scrap to this core; Be easy on the other hand injure operating personnel.

The utility model content

The purpose of this utility model is to provide a kind of drain pipe elbow mould, and this drain pipe elbow mould can solve the problem that it easily damaged and injured the operator.

In order to address the above problem, the technical solution adopted in the utility model is:

this drain pipe elbow mould, include the stuck-module first of two sections little compound formations of cylinder of large the inner, an outer end, an outer end is cylinder, the inner outside is the ring body section of anchor ring and the stuck-module second of the compound formation of intercalation part that the outside is the face of cylinder, between described stuck-module first and described stuck-module second, active module is housed, adopt tapered spigot to engage with the mode of cone-shaped plug between described active module and described stuck-module first, being connected between described active module and described stuck-module second is that the groove bottom of inserting on described active module by the intercalation part on described stuck-module second is the groove on the face of cylinder, it is characterized in that: the diameter of the groove groove bottom of described active module is less than 3～8 millimeters of described stuck-module second ring body section anchor ring circle diameters, the anchor ring of the ring body section of described stuck-module second is plane or curved surface with being connected of the face of cylinder of described intercalation part.

Owing to having adopted technique scheme, the utility model compared with prior art has following beneficial effect:

1, active module cutting edge thickness increase, intensity improve, and cutting edge is not yielding, and improve die life.

2, easy to maintenance, after maintenance, the active module cutting edge strength can not reduce yet.

3, core rod accurate positioning, product the overlap situation occurs and greatly reduce.

Description of drawings

Fig. 1 is the front view after oneself has technology drain pipe elbow mold core die combination.

Fig. 2 is the B-B cutaway view after oneself has technology drain pipe elbow mold core die combination.

Fig. 3 is the front view after the utility model drain pipe elbow mold core die combination.

Fig. 4 is the A-A cutaway view after the utility model drain pipe elbow mold core die combination.

The specific embodiment

The utility model is described in further detail below in conjunction with the accompanying drawing example:

The core of Fig. 3, drain pipe elbow mould shown in Figure 4.

embodiment 1 includes the stuck-module first 3 of two sections little compound formations of cylinder of large the inner, an outer end, an outer end is cylinder, the inner outside is the ring body section of anchor ring and the stuck-module second 1 of the compound formation of intercalation part that the outside is the face of cylinder, between stuck-module first 3 and stuck-module second 1, active module 2 is housed, adopt tapered spigot to engage with the mode of cone-shaped plug between active module 2 and stuck-module first 3, being connected between active module 2 and stuck-module second 1 is that the groove bottom of inserting on active module 2 by the intercalation part on stuck-module second 1 is the groove on the face of cylinder, the diameter of the groove groove bottom of active module 2 is less than 5.5 millimeters of stuck-module second 1 ring body section anchor ring circle diameters, the anchor ring of the ring body section of stuck-module second 1 is plane or curved surface with being connected of the face of cylinder of intercalation part.

Less than 3 millimeters of stuck-module second 1 ring body section anchor ring circle diameters, remainder is identical, repeats no more except the diameter of the groove groove bottom of active module 2 for embodiment 2 the present embodiment and embodiment 1.

Less than 8 millimeters of stuck-module second 1 ring body section anchor ring circle diameters, remainder is identical, repeats no more except the diameter of the groove groove bottom of active module 2 for embodiment 3 the present embodiment and embodiment 1.

during matched moulds, stuck-module second 1 ring body section anchor ring engages with the groove that active module 2 groove bottom are the face of cylinder, due to the diameter of the groove groove bottom of active module 2 less than stuck-module second 1 ring body section anchor ring circle diameter, the trough rim top of active module 2 grooves can not form sharp cutting edge, and form two platforms, make contacting by original line contact between stuck-module second 1 and active module 2 transfer present face contact to, contact area both increases to some extent, stuck-module second 1 and active module 2 location are more accurate, the resistance of failure on the trough rim top of active module 2 grooves improves greatly, also extended the interval time of mold repair.

Claims

1. drain pipe elbow mould, include the stuck-module first of two sections little compound formations of cylinder of large the inner, an outer end, an outer end is cylinder, the inner outside is the ring body section of anchor ring and the stuck-module second of the compound formation of intercalation part that the outside is the face of cylinder, between described stuck-module first and described stuck-module second, active module is housed, adopt tapered spigot to engage with the mode of cone-shaped plug between described active module and described stuck-module first, being connected between described active module and described stuck-module second is that the groove bottom of inserting on described active module by the intercalation part on described stuck-module second is the groove on the face of cylinder, it is characterized in that: the diameter of the groove groove bottom of described active module is less than 3～8 millimeters of described stuck-module second ring body section anchor ring circle diameters, the anchor ring of the ring body section of described stuck-module second is plane or curved surface with being connected of the face of cylinder of described intercalation part.