CN210211187U

CN210211187U - V-shaped pipe injection mold

Info

Publication number: CN210211187U
Application number: CN201920875297.4U
Authority: CN
Inventors: Linjun Sun; 孙林军
Original assignee: Suzhou Leshoe Precision Casting Co Ltd
Current assignee: Suzhou Leshao Precision Machinery Technology Co ltd
Priority date: 2019-06-12
Filing date: 2019-06-12
Publication date: 2020-03-31
Anticipated expiration: 2029-06-12

Abstract

The utility model discloses a V type pipe injection mold, including the external mold that has the die cavity, can set up the mold core in the die cavity, and the runner, be linked together runner with runner and die cavity, there is the interval mold core and die cavity inner wall, the mold core is including all loosing core and the second is loosed core for columnar first, the external mold is seted up and is supplied first loose core cooperation ground male first intercommunicating pore, and supply the second to loose core cooperation ground male second intercommunicating pore, the external mold is linked together with the external world through first intercommunicating pore and second intercommunicating pore, first loosing core and the second is loosed core and can be connected through coupling mechanism, coupling mechanism is including setting up the protruding muscle on first loosing core, and be used for supplying protruding muscle cooperation to insert and set up the recess on the second is loosed core, first loose core is including first core and second core, first core is including the inner arc portion that is used for making the inner bend. The V-shaped pipe injection mold is simple in structure and capable of conveniently and rapidly producing the cooling water elbow.

Description

V-shaped pipe injection mold

Technical Field

The utility model relates to a V type pipe injection mold.

Background

In a pure electric vehicle, a part of a motor cooling water pipe is a V-shaped bent pipe, the structure of the bent pipe is that two sections of cylindrical pipelines are connected together in a V-shaped manner, as shown in fig. 1, the V-shaped bent pipe comprises two sections of straight pipes, the two sections of straight pipes are connected through one section of bent pipe, and the bent pipe comprises an inner bent part 1000 with a smaller curvature radius and an outer bent part 2000 with a larger curvature radius. The existing mould for producing the elbow in the mould industry generally has the following defects: the design structure is complex, the cost is high, the processing period is long, the maintenance is difficult, and the like. In particular, the required shape of some bent pipes is high, and the core pulling for forming the inner bent portion 1000 is difficult to extract.

Disclosure of Invention

The utility model aims at overcoming the above-mentioned not enough and providing a V type pipe injection mold.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the utility model provides a V type pipe injection mold for return bend injection moulding, the return bend includes interior bending part and outer bending part, V type pipe injection mold is including the external mold that has the die cavity, can set up the mold core in the die cavity to and the runner, with the runner that the runner is linked together with the die cavity, the mold core with there is the interval in die cavity inner wall, the external mold is including first external mold and the second external mold that can cooperate ground lock each other, form the die cavity behind first external mold and the second external mold lock, the mold core is loosed core and the second is loosed core for columnar first, the external mold is seted up and is supplied first loose core cooperation ground male first intercommunicating pore and supply the second loose core cooperation ground male second intercommunicating pore, the die cavity passes through first intercommunicating pore and second intercommunicating pore are linked together with the external world, first core and the second core including mutual detachable connection of loosing core, first core include extending direction with the parallel spout of first core extending direction, the second core sets up including can sliding fit the splice bar in the spout, first core is including being used for making the fashioned inner arc portion of the interior bending portion of return bend, the tip of first core is provided with protruding muscle, the tip that the second was loosed core is provided with the confession protruding muscle cooperation male recess.

Preferably, a surface where the first core body and the second core body meet is parallel to an extending direction of the first core back.

Preferably, the extending direction of the rib is parallel to the extending direction of the first loose core.

Preferably, a first limiting block is arranged at the end part, far away from the second loose core, of the first loose core, and the cross-sectional area of the first limiting block is larger than that of the first communication hole; and a second limiting block is arranged at the end part, far away from the first loose core, of the second loose core, and the cross sectional area of the second limiting block is larger than that of the second communicating hole.

Preferably, the cross sections of the first limiting block and the second limiting block are rectangular, and the outer die is provided with a rectangular hole for the first limiting block and the second limiting block to be inserted in a matched mode.

Further preferably, the first stopper is disposed on the second core.

Preferably, the end of the first loose core, which is far away from the second loose core, is provided with a first threaded hole, and the end of the second loose core, which is far away from the first loose core, is provided with a second threaded hole.

Preferably, the cross section of each position of the first loose core in the axial direction is smaller than the cross section of the end part of the first loose core far away from the second loose core.

Preferably, the number of the cavities of the outer die is two, each cavity is provided with a group of the mold cores, and the two cavities are arranged symmetrically in the outer die.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage: this V type pipe injection mold can be used for producing the higher return bend of curved surface quality requirement, first core can be used for the shaping of inner bend portion, because be detachable between first core and the second core, consequently can be when the end of moulding plastics need be taken first loose core out, can take out the second core earlier, take out first core again, like this, this injection mold has both guaranteed high quality shaping, its structure of loosing core is comparatively simple again, the part quantity of this mould is few, its equipment is quick, high production efficiency, can produce various return bends fast.

Drawings

FIG. 1 is an axial schematic view of a bend;

FIG. 2 is a schematic axial view of a V-tube injection mold;

FIG. 3 is a schematic view of the internal structure of a V-tube injection mold;

FIG. 4 is an axial schematic view of the mold core;

FIG. 5 is an axial view of the mold core at another angle;

wherein: 1. first loose cores; 11. a first stopper; 12. a first threaded hole; 13. a first core; 131. an inner arc portion; 132. a chute; 14. a second core; 141. connecting ribs; 2. second loose cores; 21. a second limiting block; 22. a second threaded hole; 3. a first communication hole; 4. a second communication hole; 5. a rib is protruded; 6. a groove; 7. a gate; 8. a pouring channel; 10. a cavity; 100. an outer mold; 101. a first outer mold; 102. a second outer mold; 103. a rectangular hole; 200. a mold core; 1000. an inner curved portion; 2000. an outer curved portion.

Detailed Description

The technical solution of the present invention will be further explained with reference to the accompanying drawings.

Referring to fig. 2 to 5, the pure electric vehicle motor cooling water pipe bending mold comprises an outer mold 100 with a cavity 10, a mold core 200 capable of being arranged in the cavity 10, a gate 7 and a pouring channel 8 communicating the gate 7 with the cavity 10, wherein the mold core 200 is spaced from the inner wall of the cavity 10. The outer mold 100 includes a first outer mold 101 and a second outer mold 102 that can be engaged with each other, and the first outer mold 101 and the second outer mold 102 are engaged to form the cavity 10. Mold core 200 is including all loosing core 1 and the second 2 of loosing core for columnar first, and external mold 100 offers and supplies the first 1 first intercommunicating pore of loosing core and supplies the second to loose core 2 and cooperatedly and insert second intercommunicating pore 4, and die cavity 10 is linked together with the external world through first intercommunicating pore 3 and second intercommunicating pore 4, and first 1 and the second of loosing core are loosed core 2 and can be connected through coupling mechanism, and coupling mechanism is including setting up protruding muscle 5 on the first 1 of loosing core and be used for supplying protruding muscle 5 cooperation to insert and set up recess 6 on the second is loosed core 2. The first core back 1 includes a first core 13 and a second core 14, and the first core 13 includes an inner arc portion 131 for shaping an inner bend portion 1000 of a bend. After the elbow is formed by using the pure electric vehicle motor cooling water elbow die, when the first core 1 needs to be pulled out, the inner arc part 131 of the first core 13 is blocked by the elbow and cannot be pulled out, so that the second core 14 and the second core 2 are pulled out first, and the first core 13 can be completely pulled out at the moment. This pure electric vehicles motor cooling water bending mould can be used for the return bend to take shape, even 1000 curved surface quality requirements of interior bending portion of return bend are higher moreover, because first 1 of loosing core are components of a whole that can function independently, also can realize first 1 of loosing core take out.

The surface where the first core 13 and the second core 14 meet is parallel to the extending direction of the first core back 1, which facilitates the extraction of the second core 14.

The first core 13 includes a slide groove 132 extending in parallel with the extending direction of the first core 1, and the second core 14 includes a connecting rib 141 slidably fitted in the slide groove 132. The sliding grooves 132 and the connecting ribs 141 are matched with each other, so that the first core body 13 and the second core body 14 can be conveniently assembled into the first core back 1. When the second core 14 is extracted, the second core 14 can be extracted in the direction of the tie bar 141.

The extending direction of the convex rib 5 is parallel to the extending direction of the first loose core 1, so that the first loose core 1 can be conveniently drawn out from the cavity 10, and then the second loose core 2 is drawn out. The extending direction of the groove 6 may be set to be parallel to the extending direction of the second core back 2, and in this setting, the second core back 2 is firstly drawn out, and then the first core back 1 is drawn out.

A first limiting block 11 is arranged at the end part of the first loose core 1 far away from the second loose core 2, and the cross-sectional area of the first limiting block 11 is larger than that of the first communication hole 3; the end part of the second loose core 2, which is far away from the first loose core 1, is provided with a second limiting block 21, and the cross-sectional area of the second limiting block 21 is larger than that of the second communicating hole 4. The first limiting block 11 and the second limiting block 21 play a role in limiting the movement of the mold core 200 and simultaneously can prevent injection molding materials from flowing out of the mold cavity 10.

The cross sections of the first limiting block 11 and the second limiting block 21 are rectangular, and the outer die 100 is provided with a rectangular hole 103 for the first limiting block 11 and the second limiting block 21 to be inserted in a matching manner, and the rectangular hole can assist in positioning the mold core 200 and prevent the mold core 200 from being inserted into the mold cavity 10 by mistake and causing damage to the mold.

The end of the first loose core 1 far away from the second loose core 2 is provided with a first threaded hole 12, and the end of the second loose core 2 far away from the first loose core 1 is provided with a second threaded hole 22. When the mold core 10 is extracted or inserted, the clamp can be screwed on the first loose core 1 and the second loose core 2, so that the operation is convenient. Wherein, the axis of the first threaded hole 12 and the axis of the first loose core 1 extend in a collinear manner, and the axis of the second threaded hole 22 and the axis of the second loose core 2 extend in a collinear manner. In this embodiment, the first threaded hole 12 is provided on the first stopper 11, and the second threaded hole 22 is provided on the second stopper 21. Preferably, the first stopper 11 is provided on the second core 14 because the second core 14 is drawn out prior to the first core 13.

The cross section of each position of the first loose core 1 in the axial direction is smaller than that of the end part of the first loose core 1 far away from the second loose core, similarly, the cross section of each position of the second loose core 2 in the axial direction is smaller than that of the end part of the second loose core 2 far away from the first loose core 1, and therefore the mold core 20 can be pulled out of a formed water pipe.

The two cavities 10 of the outer die 100 are arranged, and each cavity 10 is provided with a group of die cores 200, so that the efficiency of producing water pipes by using the die is high. The two cavities 10 are symmetrically arranged in the outer die 100, so that the consistency of the molding quality is ensured.

Preferably, in some embodiments, the ribs 5 are cross ribs and the grooves 6 are cross grooves matching with the cross ribs, so as to ensure that the first core back 1 and the second core back 2 are stably connected.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose of the embodiments is to enable people skilled in the art to understand the contents of the present invention and to implement the present invention, which cannot limit the protection scope of the present invention. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. The utility model provides a V type pipe injection mold for return bend injection moulding, the return bend includes interior bending part and outer bending part, V type pipe injection mold is including the external mold that has the die cavity, can set up mold core in the die cavity to and runner, general the runner with the runner that the die cavity is linked together, the mold core with there is interval, its characterized in that in the die cavity inner wall: the outer die comprises a first outer die and a second outer die which are mutually matched and buckled, the die cavity is formed after the first outer die and the second outer die are buckled, the die core comprises a first loose core and a second loose core which are columnar, the outer die is provided with a first communicating hole for the first loose core to be fittingly inserted and a second communicating hole for the second loose core to be fittingly inserted, the die cavity is communicated with the outside through the first communicating hole and the second communicating hole, the first loose core comprises a first core body and a second core body which are mutually detachably connected, the first core body is provided with a sliding groove of which the extending direction is parallel to the extending direction of the first core body, the second core body is provided with a connecting rib which can be arranged in the sliding groove in a sliding fit manner, the first core body is provided with an inner arc part for forming the inner bending part of the bent pipe, and the end part of the first core body is provided with a convex rib, and a groove for the convex rib to be inserted in a matched manner is formed in the end part of the second loose core.

2. The V-tube injection mold according to claim 1, characterized in that: the surface of the first core body, which is connected with the second core body, is parallel to the extending direction of the first loose core.

3. The V-tube injection mold according to claim 1, characterized in that: the extending direction of the convex rib is parallel to the extending direction of the first loose core.

4. The V-tube injection mold according to claim 1, characterized in that: a first limiting block is arranged at the end part, far away from the second loose core, of the first loose core, and the cross-sectional area of the first limiting block is larger than that of the first communication hole; and a second limiting block is arranged at the end part, far away from the first loose core, of the second loose core, and the cross sectional area of the second limiting block is larger than that of the second communicating hole.

5. The V-tube injection mold according to claim 4, characterized in that: the cross sections of the first limiting block and the second limiting block are rectangular, and the outer die is provided with rectangular holes for the first limiting block and the second limiting block to be inserted in a matched mode.

6. The V-tube injection mold according to claim 4, characterized in that: the first limiting block is arranged on the second core body.

7. The V-tube injection mold according to claim 1, characterized in that: the end portion, away from the second core, of the first core is provided with a first threaded hole, and the end portion, away from the first core, of the second core is provided with a second threaded hole.

8. The V-tube injection mold according to claim 1, characterized in that: the cross section of each position of the first loose core in the axial direction is smaller than that of the end part of the first loose core, which is far away from the second loose core.

9. The V-tube injection mold according to claim 1, characterized in that: the mold comprises an outer mold and an outer mold, wherein the outer mold is provided with two cavities, each cavity is internally provided with a group of mold cores, and the two cavities are symmetrically arranged in the outer mold.