CN219055206U

CN219055206U - Direction-changing core pulling device

Info

Publication number: CN219055206U
Application number: CN202223494322.5U
Authority: CN
Inventors: 曾文; 韩迅; 陈建伟
Original assignee: Chongqing Yujiang Xingao Die Co ltd
Current assignee: Chongqing Yujiang Xingao Die Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-05-23
Anticipated expiration: 2032-12-27

Abstract

The utility model relates to the technical field of core pulling devices, in particular to a turning core pulling device which comprises a core pulling connecting shaft used for connecting core pulling, wherein a bent pin shaft used for turning is connected to the core pulling connecting shaft, and one end of the bent pin shaft is connected with a driving oil cylinder; the connecting end of the bent pin shaft and the loose core connecting shaft is provided with a rear limit step, a first clamping groove is formed in the loose core connecting shaft corresponding to the rear limit step, and the rear limit step is inserted and installed in the first clamping groove. After the back limiting step is added in the direction-changing core pulling process, the locking force requirement of the core pulling oil cylinder is reduced, and meanwhile stable operation in a limited space is ensured.

Description

Direction-changing core pulling device

Technical Field

The utility model relates to the technical field of core puller installation, in particular to a turning core puller.

Background

When the side wall of the plastic product is provided with a through hole, a groove or a boss, the plastic product cannot be directly taken out from the die, and the forming part of the through hole, the groove and the boss must be made into a movable part, and the movable forming part is called a movable core. The mechanism for completing the extraction and the resetting of the movable core is called a core pulling mechanism. The existing die core-pulling device is limited in installation direction, and the locking force of a core-pulling oil cylinder is excessively high.

Disclosure of Invention

The utility model aims to solve the technical problem of providing the turning core pulling device, which reduces the requirement of locking force of a core pulling cylinder after a back limit step is added on turning core pulling, and simultaneously ensures stable work in a limited space.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the turning core pulling device comprises a core pulling connecting shaft used for connecting core pulling, wherein a bent pin shaft used for turning is connected to the core pulling connecting shaft, and one end of the bent pin shaft is connected with a driving oil cylinder; the connecting end of the bent pin shaft and the loose core connecting shaft is provided with a rear limit step, a first clamping groove is formed in the loose core connecting shaft corresponding to the rear limit step, and the rear limit step is inserted and installed in the first clamping groove.

Further, the back limiting step comprises a straight inserted bar integrally formed and connected with one end of the tail end of the main body of the bent pin shaft, an inclined inserted bar is integrally formed and connected with the other end of the straight inserted bar, a through groove is formed in the inclined inserted bar perpendicular to the insertion direction, one side groove wall of the through groove is higher than the other side groove wall, and the inclined inserted bar and the straight inserted bar are inserted into the first clamping groove.

Further, an extension connecting piece is arranged above the straight inserting rod, the extension connecting piece is connected with the bent pin shaft in an integrated mode, and an independent second clamping groove is formed in the loose core connecting shaft corresponding to the extension connecting piece.

Further, an orientation block used for limiting the displacement direction and the position of the bent pin shaft is arranged on the bent pin shaft, and a mounting hole is formed in the orientation block.

Further, a guide shaft is arranged on the loose core connecting shaft.

The utility model has the beneficial effects that:

in the in-service use occasion, during operation, the bent pin axle is driven to the hydro-cylinder, promotes the connecting axle of loosing core and carries out the mould work of loosing core then, is equipped with certain angle of buckling between the connecting of loosing core take out and the bent pin axle, and the convenient reply can't carry out the mould part of sharp loose core, and back spacing step inserts and installs the axis body side of taking out at the connecting of loosing core, adopts the ladder grafting of distinguishing traditional mode of cut straightly for the connection of two is more firm, and the hydro-cylinder is when taking out, and the connecting axle of loosing core can be more firm to be connected at the bent pin epaxially. Compared with the condition that the existing turning shaft center is directly connected with the core-pulling connecting shaft, the utility model reduces the requirement of locking force of the core-pulling oil cylinder after the turning core-pulling is added with the rear limit step, and simultaneously ensures stable work in a limited space.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a schematic view of the whole cross-sectional structure of the present utility model;

fig. 3 is a schematic view of the rear limit step structure of the present utility model.

Reference numerals:

1-core pulling; 2-loose core connecting shafts; 21-a first clamping groove; 22-a second clamping groove; 3-bending the pin shaft; 31-a rear limit step; 311-a straight inserting rod; 312-oblique inserted bar; 313-through slot; 314-extending the connection piece; 32-orienting blocks; 321-mounting holes; 4-driving an oil cylinder; 5-guiding shaft.

Detailed Description

The utility model will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the utility model.

As shown in fig. 1 to 3, the present utility model provides a direction-changing core pulling device, which is characterized in that: the device comprises a core pulling connecting shaft 2 for connecting a core pulling shaft 1, wherein a bent pin shaft 3 for turning is connected to the core pulling connecting shaft 2, and one end of the bent pin shaft 3 is connected with a driving oil cylinder 4; the connecting end of the bent pin shaft 3 and the loose core connecting shaft 2 is provided with a rear limit step 31, the loose core connecting shaft 2 is provided with a first clamping groove 21 corresponding to the rear limit step 31, and the rear limit step 31 is inserted and installed in the first clamping groove 21.

In this embodiment, during operation, hydro-cylinder 4 drive curved round pin axle 3 promotes the connecting axle 2 of loosing core and carries out the mould work of loosing core then, is equipped with certain angle of buckling between the connecting axle 2 of loosing core and the curved round pin axle 3, and the convenient reply can't carry out the mould part of sharp loose core, and back spacing step 31 inserts and installs in the axis body side of the connecting axle 2 of loosing core, adopts the ladder grafting of distinguishing traditional mode of cut straightly for the connection of two is more firm, and the hydro-cylinder is when sending, and connecting axle 2 of loosing core can be more firm connect on curved round pin axle 3. Compared with the condition that the existing turning shaft center is directly connected with the core-pulling connecting shaft, the device reduces the locking force requirement of the core-pulling oil cylinder after the turning core-pulling is increased by the rear limit step, and meanwhile ensures stable operation in a limited space.

As shown in fig. 2 and 3, the rear limit step 31 includes a straight inserting rod 311 integrally connected with the main body end of the bent pin shaft 3 at one end, an inclined inserting rod 312 is integrally connected with the other end of the straight inserting rod 311, a through slot 313 is formed on the inclined inserting rod 312 perpendicular to the insertion direction, one side slot wall of the through slot 313 is higher than the other side slot wall, and the inclined inserting rod 312 and the straight inserting rod 311 are inserted into the first clamping slot 21; in this embodiment, the oblique insert rod 312 is inserted into the first clamping groove 21 to form a pull-hanging posture with the straight insert rod 311, and compared with a simple straight insert rod 311 in a straight insertion manner, the oblique insert rod 312 is further provided with a through groove 313 for clamping the protruding portion in the first clamping groove 21, so that the connection of the two is more compact.

As shown in fig. 2, an extending connecting piece 314 is disposed above the straight inserting rod 311, the extending connecting piece 314 is integrally connected with the bent pin shaft 3, and an independent second clamping groove 22 is formed on the loose core connecting shaft 2 corresponding to the extending connecting piece 314; in this embodiment, the extending connecting piece 314 and the second clamping groove 22 form an auxiliary fixing function, so that the contact area between the bent pin shaft 3 and the loose core connecting shaft 2 is increased, and the stress is dispersed, so as to prevent damage.

As shown in fig. 3, the bent pin shaft 3 is provided with an orientation block 32 for limiting the displacement direction and position of the bent pin shaft 3, and the orientation block 32 is provided with a mounting hole 321; in this embodiment, after determining the core pulling direction of the core pulling connection pump 2, the directional connection block 32 is fixed on a mold or other supporting tool, and the displacement direction of the core pulling is defined.

As shown in fig. 1, a guide shaft 5 is arranged on the loose core connecting shaft 2; in this embodiment, the guide shaft 5 is used to guide the displacement direction of the loose core connection shaft 2.

All technical features in the present embodiment can be modified in appearance according to actual needs.

The foregoing embodiments are preferred embodiments of the present utility model, and in addition, the present utility model may be implemented in other ways, and any obvious substitution is within the scope of the present utility model without departing from the concept of the present utility model.

Claims

1. The utility model provides a diversion core-pulling device which characterized in that: the device comprises a core-pulling connecting shaft (2) for connecting a core-pulling shaft (1), wherein a bent pin shaft (3) for turning is connected to the core-pulling connecting shaft (2), and one end of the bent pin shaft (3) is connected with a driving oil cylinder (4);

the connecting end of the bent pin shaft (3) and the loose core connecting shaft (2) is provided with a rear limit step (31), the loose core connecting shaft (2) is provided with a first clamping groove (21) corresponding to the rear limit step (31), and the rear limit step (31) is inserted and installed in the first clamping groove (21).

2. The direction-changing core pulling device according to claim 1, wherein: the rear limiting step (31) comprises a straight inserting rod (311) integrally formed and connected with the tail end of the main body of the bent pin shaft (3) at one end, an inclined inserting rod (312) is integrally formed and connected with the other end of the straight inserting rod (311), a through groove (313) is formed in the inclined inserting rod (312) perpendicular to the inserting direction, one side groove wall of the through groove (313) is higher than the other side groove wall, and the inclined inserting rod (312) and the straight inserting rod (311) are inserted into the first clamping groove (21).

3. The direction-changing core pulling device according to claim 2, wherein: an extending connecting sheet (314) is arranged above the straight inserting rod (311), the extending connecting sheet (314) is connected with the bent pin shaft (3) in an integrated manner, and an independent second clamping groove (22) is formed in the core-pulling connecting shaft (2) corresponding to the extending connecting sheet (314).

4. The direction-changing core pulling device according to claim 1, wherein: the bending pin shaft (3) is provided with an orientation block (32) used for limiting the displacement direction and the position of the bending pin shaft (3), and the orientation block (32) is provided with a mounting hole (321).

5. The direction-changing core pulling device according to claim 1, wherein: the core-pulling connecting shaft (2) is provided with a guide shaft (5).