CN212331723U

CN212331723U - Segmented core-pulling mechanism

Info

Publication number: CN212331723U
Application number: CN202020739203.3U
Authority: CN
Inventors: 钟海; 蔡发前
Original assignee: Sichuan Ruilite Precision Mould Co ltd
Current assignee: Sichuan Ruilite Precision Mould Co ltd
Priority date: 2020-05-07
Filing date: 2020-05-07
Publication date: 2021-01-12
Anticipated expiration: 2030-05-07

Abstract

The utility model discloses a mechanism of loosing core in segmentation, its characterized in that: the core pulling device comprises a sliding block (1), a plurality of core pulling devices connected to the sliding block (1), and a core positioning device connected to the core pulling devices; the core pulling device comprises an end part block (3) arranged on the core positioning device, and a push pipe core (9) with one end connected with the sliding block (1) and the other end penetrating through the end part block (3); the pipe pushing core (9) can move in the end plugging block (3) and can drive the end plugging block (3) to move. The utility model discloses simple structure, processing is convenient, adopts the mode of loosing core in the segmentation, and the effectual product of having solved pulls when loosing core, the problem of breaking. Additionally, the utility model discloses a parts such as sprue recess, guide pillar drive the fixture block and slide to realize the chucking or loosen the tip sprue, reach the purpose that the secondary was loosed the core, avoided the uncontrollable nature that parts such as use springs brought.

Description

Segmented core-pulling mechanism

Technical Field

The utility model relates to the technical field of mold, specifically indicate a mechanism of loosing core in segmentation.

Background

When the side wall of the plastic product is provided with a through hole, a boss or a groove, the injection mold is designed with a core pulling mechanism, and before the plastic product is demoulded, the side core pulling is completed firstly, so that the plastic product is demoulded safely. When the outer side surface of the plastic product is provided with the tubular bulges or the reinforcing ribs, the tubular bulges or the reinforcing ribs on the product are easily damaged by pulling the core once, so that the plastic product is damaged, and the rejection rate of the product is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned problem, provide one kind and can segment the core of loosing to the power of loosing core when solving once and too big and damage the segmentation mechanism of loosing core of product.

The purpose of the utility model is realized through the following technical scheme: a segmented core-pulling mechanism comprises a sliding block, a plurality of core-pulling devices connected to the sliding block, and a core positioning device connected to the core-pulling devices; the core pulling device comprises an end part block arranged on the core positioning device, and a push pipe core with one end connected with the sliding block and the other end penetrating through the end part block; the pipe pushing core can move in the end plugging block and can drive the end plugging block to move.

Furthermore, a through hole is formed in the end part plugging block, and a shaft shoulder check ring is arranged in the through hole; the push pipe mold core penetrates through the through hole, a shaft shoulder is arranged on the push pipe mold core, and the shaft shoulder can abut against the shaft shoulder check ring when the push pipe mold core moves.

The mold core positioning device comprises a fixed block and a clamping device connected to the fixed block; the fixed block is provided with a block mounting hole, a guide pillar mounting hole and a fixture block mounting hole communicated with the block mounting hole and the guide pillar mounting hole; the end part plugging block extends into the plugging block mounting hole.

The clamping device comprises a guide pillar with one end connected with the sliding block and the other end provided with a guide pillar concave part, and a clamping block arranged in the clamping block mounting hole; the end part plugging block is provided with a plugging block groove, and the guide pillar extends into the guide pillar mounting hole; the fixture block can slide along the fixture block mounting hole, one end of the fixture block can extend into the fixture block groove when the fixture block slides, and the other end of the fixture block can extend into the guide pillar groove.

And arc chamfers are arranged at two ends of the clamping block.

Compared with the prior art, the utility model, have following advantage and beneficial effect: the utility model discloses simple structure, processing is convenient, adopts the mode of loosing core in the segmentation, and the effectual product of having solved pulls when loosing core, the problem of breaking. Additionally, the utility model discloses a parts such as sprue recess, guide pillar drive the fixture block and slide to realize the chucking or loosen the tip sprue, reach the purpose that the secondary was loosed the core, avoided the uncontrollable nature that parts such as use springs brought.

Drawings

Fig. 1 is a cross-sectional view of the utility model before loosing core.

Fig. 2 is the cross-sectional view after the utility model discloses once loosing core.

Fig. 3 is the utility model discloses the cross-sectional view after the secondary is loosed core.

Fig. 4 is a sectional view of the fixing block of the present invention.

The reference numbers in the above figures refer to: the structure comprises a sliding block 1, a sliding block 2, a fixing block 3, an end block 4, a product 5, a guide column concave part 6, a guide column 7, a shaft shoulder 8, a clamping block 9, a pipe pushing core 10, a through hole 11, a block groove 12, a guide column mounting hole 13, a block mounting hole 14, a clamping block mounting hole and a shaft shoulder retainer ring 15.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Examples

As shown in figures 1-3, the utility model discloses a mechanism of loosing core in segmentation, including slider 1, device and core positioner loose core. The core pulling device is fixedly connected to the sliding block 1, the number of the core pulling devices is set according to products to be produced, and the number of the core pulling devices is two. The core positioning device is connected to the core pulling device and used for fixing the core pulling device.

The core-pulling device comprises an end part plugging block 3 and a push pipe mold core 9; this tip sprue 3 is installed on core positioner to seted up through-hole 10 on the tip sprue 3, be provided with shoulder retainer ring 15 in the through-hole 10. One end of the push pipe mold core 9 is fixed on the slide block 1, and the other end of the push pipe mold core penetrates through the through hole 10; when the slide block 1 moves, the push pipe mold core 9 can move in the through hole 10; the push tube core 9 is provided with a shaft shoulder 7, and the shaft shoulder 7 can abut against a shaft shoulder retainer ring 15 when the push tube core 9 moves in the through hole 10, so that the end part plugging block 3 moves along.

The mold core positioning device comprises a fixing block 2 and a clamping device connected to the fixing block 2. The fixed block 2 is provided with a block mounting hole 13, a guide post mounting hole 12 and a fixture block mounting hole 14 for communicating the block mounting hole 13 with the guide post mounting hole 12, as shown in fig. 4. The end block 3 extends through the block mounting hole 13.

The clamping device comprises a guide post 6 and a clamping block 8, one end of the guide post 6 is fixedly connected with the sliding block 1, and the guide post 6 can be driven to move when the sliding block 1 slides; the other end of the guide post 6 passes through the post mounting hole 12, so that the guide post 6 can move in the post mounting hole 12. The latch 8 is fitted into the latch fitting hole 14, and the latch 8 can slide along the latch fitting hole 14.

One end of the guide post 6, which is far away from the slide block 1, is provided with a guide post concave part 5, and the end part block 3 is provided with a block groove 11; when the block 8 slides, one end of the block can extend into the block groove 11, and the other end of the block can extend into the guide post concave part 5. When the end part block 3 and the guide post 6 move, the clamping block 8 can be extruded, so that the clamping block 8 slides. And arc chamfers are arranged at two ends of the clamping block 8, so that the clamping block 8 can be better extruded by the end part plugging block 3 and the guide pillar 6.

After the product is injection molded, the end part of the push pipe mold core 9 is positioned in the product, the end part of the end part block 3 blocks the end part of the product 4, as shown in fig. 1, the guide post 6 penetrates through the fixing block 2, and one end of the clamping block 8, which is far away from the guide post 6, is inserted into the block groove 11 due to the extrusion of the guide post 6, so that the end part block 3 is fixed; at this time, the push tube core 9 and the end block 3 need to be pulled away from the product, that is, the core of the product is pulled. When loosing core, whole mechanism is located the workstation, promotes slider 1, makes slider 1 slide to the one side of keeping away from fixed block 2, and slider 1 drives and pushes away tub core 9 and remove this moment, and guide pillar 6 also removes along with slider 1 simultaneously, pushes away the slow product 4 of taking out of tub core 9, accomplishes once loosing core, as shown in fig. 2. Continue to promote slider 1, when the shoulder 7 extrusion tip sprue 15 in the push away pipe core 9 on the tip sprue 3, tip sprue 3 receives the thrust, while guide pillar 6 continues to follow slider 1 and removes, at the in-process that removes, because be provided with guide pillar recess 5 on the guide pillar 6, fixture block 8 is no longer extruded to guide pillar 6, again because tip sprue 3 receives the thrust of push away pipe core 9, fixture block 8 breaks away from sprue groove 11, make tip sprue 3 can remove to the one side of keeping away from the product, until tip sprue 3 breaks away from product 4, accomplish the secondary and loose core, as shown in fig. 3.

As described above, the utility model discloses alright fine realization.

Claims

1. A segmented core-pulling mechanism is characterized in that: the core pulling device comprises a sliding block (1), a plurality of core pulling devices connected to the sliding block (1), and a core positioning device connected to the core pulling devices; the core pulling device comprises an end part block (3) arranged on the core positioning device, and a push pipe core (9) with one end connected with the sliding block (1) and the other end penetrating through the end part block (3); the pipe pushing core (9) can move in the end plugging block (3) and can drive the end plugging block (3) to move.

2. The segmented core pulling mechanism according to claim 1, wherein: a through hole (10) is formed in the end part plugging block (3), and a shaft shoulder check ring (15) is arranged in the through hole (10); the push pipe mold core (9) penetrates through the through hole (10), a shaft shoulder (7) is arranged on the push pipe mold core (9), and the shaft shoulder (7) can abut against the shaft shoulder check ring (15) when the push pipe mold core (9) moves.

3. The segmented core pulling mechanism according to claim 2, wherein: the mold core positioning device comprises a fixed block (2) and a clamping device connected to the fixed block (2); the fixed block (2) is provided with a block mounting hole (13), a guide pillar mounting hole (12) and a block mounting hole (14) for communicating the block mounting hole (13) with the guide pillar mounting hole (12); the end part block (3) extends into the block mounting hole (13).

4. The segmented core pulling mechanism according to claim 3, wherein: the clamping device comprises a guide post (6) and a clamping block (8), wherein one end of the guide post (6) is connected with the sliding block (1), and the other end of the guide post (6) is provided with a guide post concave part (5); the end part plugging block (3) is provided with a plugging block groove (11), and the guide post (6) extends into the guide post mounting hole (12); the clamping block (8) can slide along the clamping block mounting hole (14), one end of the clamping block (8) can extend into the clamping block groove (11) when sliding, and the other end of the clamping block can extend into the guide post concave part (5).

5. The segmented core pulling mechanism according to claim 4, wherein: and arc chamfers are arranged at two ends of the clamping block (8).