CN208978190U - A kind of inner slide core-pulling die - Google Patents

Abstract

The utility model discloses a kind of inner slide core-pulling dies, including die ontology and convex block, the bottom wall of the die ontology is equipped with pedestal, type chamber is offered on the roof of the die ontology, the convex block is located in the inner bottom wall of type chamber, it is offered on the bottom wall in the intracavitary portion of type and the mutually matched loose slot of convex block, movable span is offered on the bottom wall of the loose slot, it is vertically-mounted on the bottom wall of the convex block to have motion bar, the bottom end of the motion bar is equipped with drive rod, the bottom end of the drive rod is equipped with first bevel gear, the bottom end of the movable span offers installation cavity, and first bevel gear is located in installation cavity.The utility model devises profiled part of mobilizable convex block as plastic part, when needing core pulling, can first withdraw convex block, type core can smoothly be removed, situations such as avoiding molding plastic part from generating breakage, scratch, not only increases working efficiency, while improving the quality of molding plastic part.

Description

A kind of inner slide core-pulling die

Technical field

The utility model relates to injection mold technology more particularly to a kind of inner slide core-pulling dies.

Background technique

Injection mold is a kind of tool for producing plasthetics, is also to confer to plasthetics complete structure and accurate dimension Tool.Injection molding is a kind of processing method used when producing certain complex-shaped components in batches.It refers specifically to melt heated Plastics by injection molding machine high pressure inject die cavity obtain formed products after cooling and solidifying.

Plastic part is manufactured using injection mold, if the inner wall in plastic part is formed with hole or slot, when demoulding needs from plastic part Inside carries out core pulling, and traditional mode mostly uses strong core pulling, i.e., type core end is made chamfering or spherical surface, and when demoulding passes through Stripper plate by force releases plastic part, its disadvantages are that: plastic part is easy breakage, especially plastic part inner wall in abjection Hole or groove location cracky, deformation, production of plastics parts high rejection rate, stripping rate is slow, influences production efficiency, while plastic part Appearance is also easy damaged, scuffing, influences product beauty.

Utility model content

Purpose of the utility model is to solve not easy mold releases when plastic part inner wall is formed with hole or slot in the prior art Problem, and a kind of inner slide core-pulling die proposed.

To achieve the goals above, the utility model adopts the technical scheme that

The bottom wall of a kind of inner slide core-pulling die, including die ontology and convex block, the die ontology is equipped with pedestal, institute It states and offers type chamber on the roof of die ontology, the convex block is located in the inner bottom wall of type chamber, on the bottom wall in the intracavitary portion of type Offer with the mutually matched loose slot of convex block, movable span is offered on the bottom wall of the loose slot, on the bottom wall of the convex block Vertically-mounted to have motion bar, the bottom end of the motion bar is equipped with drive rod, and the bottom end of the drive rod is equipped with the first cone tooth Wheel, the bottom end of the movable span offers installation cavity, and first bevel gear is located in installation cavity, the side of the first bevel gear It is engaged with second bevel gear, the side of the second bevel gear is connected with connecting rod and knob.

Preferably, operation port is offered on the lateral wall of the die ontology, the inside of the operation port is equipped with knob, institute Connecting rod is stated to extend to the inside of operation port through installation cavity and be fixedly connected with knob.

Preferably, the drive rod is threaded rod, and the bottom end of the motion bar offers and the mutually matched spiral shell of drive rod Pit.

Preferably, fixing bearing is installed, the fixing bearing is fixedly mounted on activity on the lateral wall of the drive rod On the inner sidewall in hole.

Preferably, it offers and rises as high as the banks on the knob.

Preferably, the outside wallflow of the connecting rod is equipped with limit plate, and the inside of the die ontology offers and limits The position mutually matched board slot of plate.

Compared with prior art, the utility model has the beneficial effects that: the utility model devises mobilizable convex block As the profiled part of plastic part, when needing core pulling, first convex block can be withdrawn, type core can smoothly be removed, avoid forming Plastic part generate damaged, situations such as scratching, not only increase working efficiency, while improving the quality of molding plastic part.

Detailed description of the invention

Fig. 1 be the utility model proposes a kind of inner slide core-pulling die perspective view；

Fig. 2 be the utility model proposes a kind of inner slide core-pulling die front section view；

Fig. 3 be the utility model proposes a kind of inner slide core-pulling die part A structure enlarged drawing.

In figure: 1 die ontology, 2 pedestals, 3 type chambers, 4 loose slots, 5 convex blocks, 6 motion bars, 7 movable spans, 8 drive rods, 9 One bevel gear, 10 installation cavitys, 11 second bevel gears, 12 connecting rods, 13 knobs, 14 fixing bearings.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.

In the description of the present invention, it should be understood that term " on ", "lower", "front", "rear", "left", "right", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.

Referring to Fig.1-3, a kind of inner slide core-pulling die, including die ontology 1 and convex block 5 are set on the bottom wall of die ontology 1 There is pedestal 2, type chamber 3 is offered on the roof of die ontology 1, convex block 5 is located in the inner bottom wall of type chamber 3, and convex block 5 is in injection molding When the profiled part of hole or slot is provided, offered and the mutually matched loose slot 4 of convex block 5, convex block 5 on the bottom wall inside type chamber 3 Can be in loose slot 4 flexibly up and down, the slit design between convex block 5 and loose slot 4 is tiny as far as possible, avoids penetrating into injection molding former Material, offers movable span 7 on the bottom wall of loose slot 4, vertically-mounted on the bottom wall of convex block 5 to have motion bar 6, the bottom end of motion bar 6 Drive rod 8 is installed, drive rod 8 is threaded rod, the bottom end of motion bar 6 offer with the mutually matched threaded hole of drive rod 8, when When drive rod 8 rotates, motion bar 6 is by screw drive power, and the shape of convex block 5 itself, which limits motion bar 6, to be rotated, therefore Motion bar 6 can move up or down, and fixing bearing 14 is equipped on the lateral wall of drive rod 8, and fixing bearing 14 is fixedly mounted On the inner sidewall of movable span 7, drive rod 8 is installed, while not influencing its rotation.

The bottom end of drive rod 8 is equipped with first bevel gear 9, and the bottom end of movable span 7 offers installation cavity 10, and the first cone tooth Wheel 9 is located in installation cavity 10, and the side of first bevel gear 9 is engaged with second bevel gear 11, when second bevel gear 11 rotates, i.e., First bevel gear 9 can be driven to rotate, and then drive rod 8 is driven to control motion bar 6, the side connection of second bevel gear 11 There are connecting rod 12 and knob 13, operation port is offered on the lateral wall of die ontology 1, the inside of operation port is equipped with knob 13, even Extension bar 12 extends to the inside of operation port and is fixedly connected with knob 13 through installation cavity 10, and rotation knob 13 can be rotated second Bevel gear 11 offers on knob 13 and rises as high as the banks, convenient to be controlled by screwdriver knob 13, the outside wallflow of connecting rod 12 Limit plate is installed, the inside of die ontology 1 offer with the mutually matched board slot of limit plate, connecting rod 12 is limited, Second bevel gear 11 is avoided to be detached from the engagement of first bevel gear 9.

The working principle of the utility model are as follows: when molding terminates to need core pulling, rotate knob 13, connection using screwdriver Bar 12 drives the rotation of second bevel gear 11, and then first bevel gear 9 is driven to rotate, and drive rod 8 rotates, and due to drive rod 8 and lives The engagement of 6 screw thread of lever, therefore when the rotation of drive rod 8, motion bar 6 can move up and down, and drive convex block 5 to move up and down, moving direction Depending on the rotation direction of drive rod 8, therefore correct rotation knob 13 can be such that convex block 5 moves down, by convex block 5 from type core hole or Extraction in slot, can easily unload mo(u)ld bottom half core at this time, and subsequently reverse direction rotates knob 13, convex block 5 is resetted, remains to form next time.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein, and should not treat any reference in the claims as limiting Related claim.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (6)

1. a kind of inner slide core-pulling die, including die ontology (1) and convex block (5), the bottom wall of the die ontology (1) are equipped with Pedestal (2) offers type chamber (3) on the roof of the die ontology (1), and the convex block (5) is located at the inner bottom wall of type chamber (3) On, it is characterised in that: offered on the internal bottom wall of the type chamber (3) with convex block (5) mutually matched loose slot (4), it is described It is offered on the bottom wall of loose slot (4) movable span (7), it is vertically-mounted on the bottom wall of the convex block (5) to have motion bar (6), it is described The bottom end of motion bar (6) is equipped with drive rod (8), and the bottom end of the drive rod (8) is equipped with first bevel gear (9), the work The bottom end of dynamic hole (7) offers installation cavity (10), and first bevel gear (9) is located in installation cavity (10), the first bevel gear (9) side is engaged with second bevel gear (11), and the side of the second bevel gear (11) is connected with connecting rod (12) and knob (13).

2. a kind of inner slide core-pulling die according to claim 1, it is characterised in that: the outside of the die ontology (1) Operation port is offered on wall, the inside of the operation port is equipped with knob (13), and the connecting rod (12) is prolonged through installation cavity (10) It extends to the inside of operation port and is fixedly connected with knob (13).

3. a kind of inner slide core-pulling die according to claim 1, it is characterised in that: the drive rod (8) is threaded rod, The bottom end of the motion bar (6) offers and drive rod (8) mutually matched threaded hole.

4. a kind of inner slide core-pulling die according to claim 1, it is characterised in that: the lateral wall of the drive rod (8) On be equipped with fixing bearing (14), the fixing bearing (14) is fixedly mounted on the inner sidewall of movable span (7).

5. a kind of inner slide core-pulling die according to claim 1, it is characterised in that: offered on the knob (13) flat Slot.

6. a kind of inner slide core-pulling die according to claim 1, it is characterised in that: the lateral wall of the connecting rod (12) Row is equipped with limit plate, and the inside of the die ontology (1) offers and the mutually matched board slot of limit plate.