CN217252604U

CN217252604U - Mould core-pulling structure

Info

Publication number: CN217252604U
Application number: CN202123118992.2U
Authority: CN
Inventors: 陈庆庆
Original assignee: Ningbo Lougus Sanitary Ware Industry Co ltd
Current assignee: Ningbo Lougus Sanitary Ware Industry Co ltd
Priority date: 2021-12-13
Filing date: 2021-12-13
Publication date: 2022-08-23
Anticipated expiration: 2031-12-13

Abstract

The utility model discloses a mould core-pulling structure, which comprises an upper mould core and a lower mould core, wherein a cavity corresponding to the appearance of a product is formed between the upper mould core and the lower mould core; and a linear core-pulling mechanism and an arc core-pulling mechanism are arranged on the lower die core. The utility model discloses a mould core pulling structure, when the product drawing of patterns, straight line core pulling mechanism and arc core pulling mechanism move simultaneously, make the straight line core pulling rod pull away from the straight line part of die cavity, the arc core pulling rod pulls away from the arc part of die cavity; the product is fast to loose the core, and the precision of loosing the core is high for tap processing yield improves.

Description

Mould core-pulling structure

Technical Field

The utility model relates to a mould technical field, more specific relates to a circular arc loose core mould for tap makes.

Background

At present, numerous types of water taps on the market are produced in batches by opening the die, the main raw materials of the water taps are copper and zinc alloy, however, in the manufacturing process of the water taps, matched dies are often needed to manufacture corresponding water taps as a copy, however, the water taps are of special-shaped structures and often comprise arc-shaped parts and straight line parts connected with the arc-shaped parts, so that the water taps have the problem of difficulty in the demoulding process, and the finished product rate of the water taps is further influenced.

Based on the above problems, there is a need for improvement of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model provides a mould structure of loosing core to the not enough of existence among the prior art.

The utility model discloses a realize through following technical scheme: a core pulling structure of a mold comprises an upper mold core and a lower mold core, wherein two groups of cavities corresponding to the shape of a product are formed between the upper mold core and the lower mold core; the lower die core is provided with a linear core pulling mechanism and an arc core pulling mechanism, the linear core pulling mechanism comprises a first core pulling cylinder fixedly arranged on one side of the lower die core, a first sliding block is fixedly arranged on a cylinder rod of the first core pulling cylinder, two groups of linear core pulling rods are fixedly arranged at intervals at the end part of the first sliding block, the linear core pulling rods stretch into linear parts of each die cavity, the arc core pulling mechanisms are provided with two groups of arc guide rails which are arranged on the lower die core, the arc guide rails are communicated with arc parts in the die cavities, and second sliding blocks are arranged on the arc guide rails, one ends of the second sliding blocks are fixedly provided with the arc core pulling rods, and the linear core pulling mechanisms further drive the second sliding blocks to reciprocate along the arc guide rails.

In the technical scheme, the driving mechanism comprises a hinged block fixed with the second sliding block, a connecting shaft is arranged at one end of the hinged block, the connecting shaft penetrates through the lower mold core and is provided with a part penetrating out of the lower end of the lower mold core, a gear is fixed on the part, a rack meshed with the gear is arranged on one side of the gear, and the rack is driven by a second core-pulling cylinder fixedly arranged on one side of the lower mold core.

In the above technical scheme, the second core pulling cylinder and the rack are connected through a connecting piece, the connecting piece includes a first dovetail groove arranged on one side of the connecting piece and transversely distributed and a second dovetail groove arranged on the other side of the connecting piece and longitudinally distributed, and a dovetail part matched with the first dovetail groove and the second dovetail groove is arranged on the cylinder rod of the second core pulling cylinder and the rack.

In the technical scheme, a groove is formed in the rear end of the arc-shaped core pulling rod, and a protruding part is arranged at the front end of the linear core pulling rod and is positioned in the groove.

The utility model discloses following beneficial effect has: the utility model discloses a mould core pulling structure, when the product drawing of patterns, straight line core pulling mechanism and arc core pulling mechanism move simultaneously, make the straight line core pulling rod pull away from the straight line part of die cavity, the arc core pulling rod pulls away from the arc part of die cavity; the product is fast to loose the core, and the precision of loosing the core is high for tap processing yield improves.

Drawings

Fig. 1 is a schematic view of the three-dimensional structure of the present invention.

Fig. 2 is an exploded view of the present invention.

Fig. 3 is a schematic view of a part of the structure of the present invention.

Fig. 4 is a schematic perspective view of the driving mechanism.

Fig. 5 is a schematic diagram of the matching of the arc-shaped core rod and the linear core rod.

Fig. 6 is a schematic perspective view of the upper mold core.

Detailed Description

The invention will be described in further detail with reference to the following detailed description and accompanying drawings: referring to fig. 1 to 6, a core pulling structure of a mold includes an upper mold core 1 and a lower mold core 2, wherein a cavity 100 corresponding to the shape of a product is formed between the upper mold core 1 and the lower mold core 2, and the cavities 100 are provided in two groups; a linear core-pulling mechanism 3 and an arc core-pulling mechanism 4 are arranged on the lower die core 2, the linear core-pulling mechanism 3 comprises a first core-pulling cylinder 30 fixedly arranged on one side of the lower die core 2, a first slide block 31 is fixedly arranged on a cylinder rod of the first core pulling cylinder 30, two groups of linear core pulling rods 32 are fixedly arranged at the end part of the first slide block 31 at intervals, the linear core pulling rod 32 extends into the linear part of each cavity 100, two groups of arc core pulling mechanisms 4 are arranged, it comprises an arc guide rail 40 arranged on the lower die core 2, the arc guide rail 40 is communicated with the arc part in the die cavity 100, the arc-shaped guide rail 40 is provided with a second sliding block 41, one end of the second sliding block 41 is fixedly provided with an arc-shaped core-pulling rod 42, and the arc-shaped guide rail further comprises a driving mechanism 5 for driving the second sliding block 41 to reciprocate along the arc-shaped guide rail 40.

When a product is demoulded, the linear core pulling mechanism 3 and the arc core pulling mechanism 4 act simultaneously, wherein the linear core pulling mechanism 3 outputs power through the first core pulling cylinder 30 to drive the first slide block 31, and the first slide block 31 drives the linear core pulling rod 32, so that the linear core pulling rod 32 is pulled away from the linear part of the cavity; the arc core-pulling mechanism 4 drives the second slide block 41 to do arc motion along the arc guide rail 40 through the driving mechanism 5, and further pulls the arc core-pulling rod away from the arc part of the cavity. Above-mentioned structure, the product is loosed the core fast, and the precision of loosing core is high for tap processing yield improves.

The driving mechanism 5 comprises an articulated block 50 fixed with the second sliding block 41, a connecting shaft 51 is arranged at one end of the articulated block 50, the connecting shaft 51 penetrates through the lower die core 2 and is provided with a part penetrating out of the lower end of the lower die core 2, a gear 52 is fixed on the part, a rack 53 meshed with the gear 52 is arranged on one side of the gear 52, the rack 53 is driven by a second core-pulling cylinder 54 fixedly arranged on one side of the lower die core 2, specifically, the second core-pulling cylinder 54 is fixedly arranged on the lower die base 200, and the lower die core 2 is arranged on the lower die base 200.

The second core pulling cylinder 54 is connected with the rack 53 through a connecting piece 6, the connecting piece 6 comprises a first dovetail groove 60 which is arranged on one side of the connecting piece and transversely distributed and a second dovetail groove 61 which is arranged on the other side of the connecting piece and longitudinally distributed, and a dovetail part matched with the first dovetail groove 60 and the second dovetail groove 61 is arranged on a cylinder rod of the second core pulling cylinder 54 and the rack 53.

Preferably, a groove 420 is provided at the rear end of the arc-shaped pulling bar 42, and a protrusion 320 is provided at the front end of the linear pulling bar 32, wherein the protrusion 320 is located in the groove 420. Due to the matching structure of the protrusion 320 and the groove 420, the circular arc-shaped draw bar 42 and the linear draw bar 32 can be aligned more easily.

The foregoing shows and describes the basic principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments. The embodiments and descriptions described above in this application are merely illustrative of the principles of the invention and various changes and modifications can be made without departing from the spirit and scope of the invention. All such variations and modifications are intended to be within the scope of the claimed invention.

Claims

1. The mold core pulling structure is characterized by comprising an upper mold core (1) and a lower mold core (2), wherein a mold cavity (100) corresponding to the shape of a product is formed between the upper mold core (1) and the lower mold core (2), and the mold cavities (100) are provided with two groups; a linear core-pulling mechanism (3) and an arc core-pulling mechanism (4) are arranged on the lower die core (2), the linear core-pulling mechanism (3) comprises a first core-pulling cylinder (30) fixedly arranged on one side of the lower die core (2), a first sliding block (31) is fixedly arranged on a cylinder rod of the first core-pulling cylinder (30), two groups of linear core-pulling rods (32) are fixedly arranged at intervals at the end part of the first sliding block (31), the linear core-pulling rods (32) extend into the linear part of each die cavity (100), two groups of arc core-pulling mechanisms (4) are arranged, the two groups of arc core-pulling mechanisms comprise arc guide rails (40) arranged on the lower die core (2), the arc guide rails (40) are communicated with the arc parts in the die cavities (100), second sliding blocks (41) are arranged on the arc guide rails (40), and an arc core-pulling rod (42) is fixedly arranged at one end of the second sliding blocks (41), the device also comprises a driving mechanism (5) for driving the second sliding block (41) to reciprocate along the arc-shaped guide rail (40).

2. The mold core-pulling structure according to claim 1, wherein: the driving mechanism (5) comprises an articulated block (50) fixed with the second sliding block (41), a connecting shaft (51) is arranged at one end of the articulated block (50), the connecting shaft (51) penetrates through the lower die core (2) and is provided with a part penetrating out of the lower end of the lower die core (2), a gear (52) is fixed on the part, a rack (53) meshed with the gear (52) is arranged on one side of the gear (52), and the rack (53) is driven by a second core-pulling cylinder (54) fixedly arranged on one side of the lower die core (2).

3. The mold core-pulling structure of claim 2, wherein: the second core pulling air cylinder (54) is connected with the rack (53) through a connecting piece (6), the connecting piece (6) comprises a first dovetail groove (60) which is transversely distributed and is arranged on one side of the connecting piece and a second dovetail groove (61) which is longitudinally distributed and is arranged on the other side of the connecting piece, and a cylinder rod of the second core pulling air cylinder (54) and the rack (53) are provided with dovetail parts matched with the first dovetail groove (60) and the second dovetail groove (61).

4. The mold core-pulling structure according to claim 1, wherein: a groove (420) is formed in the rear end of the arc-shaped core pulling rod (42), a protruding part (320) is formed in the front end of the linear core pulling rod (32), and the protruding part (320) is located in the groove (420).