CN219254052U

CN219254052U - Disposable precision casting forming die

Info

Publication number: CN219254052U
Application number: CN202320235699.4U
Authority: CN
Inventors: 李春荣; 白巧玲; 邓自坤; 张加亮
Original assignee: Zhangzhou Birch Plastic Products Co ltd
Current assignee: Zhangzhou Birch Plastic Products Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-06-27
Anticipated expiration: 2033-02-17

Abstract

The utility model discloses a mold for one-time precision casting forming, which comprises a base, wherein a rotating shaft is rotatably arranged in the base, a plurality of cams are arranged on the rotating shaft, a motor is arranged on one side of the base, the rotating shaft is arranged on the output end of the motor, a positioning plate is arranged in the base, the positioning plate is positioned above the cams, a plurality of ejector rods are slidably arranged in the positioning plate, each ejector rod corresponds to each cam respectively.

Description

Disposable precision casting forming die

Technical Field

The utility model relates to the technical field of casting molds, in particular to a mold for one-time precision casting forming.

Background

The casting mould is to make the structural shape of the part by using other materials which are easy to mold in advance, then put the part into a sand mould, so that a cavity with the same structural size as the part is formed in the sand mould, and then pour the fluidity liquid into the cavity, and the liquid can be cooled and solidified to form the part with the same structural shape as the mould.

When the existing disposable casting forming die is used, flowing liquid is poured into the die generally, bubbles are easy to generate in the liquid, but the bubbles in the liquid are not removed in the prior art, so that holes are easy to appear on the surface of a formed product, the precision and the appearance sensitivity are reduced, and the disposable precision casting forming die is required to meet the requirements.

Disclosure of Invention

The utility model aims to provide a mold for one-time precision casting forming, which solves the problems that bubbles in liquid are not removed, holes are easy to appear on the surface of a formed product, and precision and appearance sensitivity are reduced in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a mould of disposable precision casting shaping, includes the base, the pivot is installed to the base internal rotation, installs a plurality of cam in the pivot, the motor is installed to one side of base, the pivot is installed on the output of motor, install the locating plate in the base, the locating plate is located the top of cam, and sliding installation has a plurality of ejector pin in the locating plate, and every ejector pin corresponds each other with every cam respectively, all installs the rubber tup on every ejector pin, be provided with the interior mould on the base, the rubber tup is located the bottom of interior mould, movable mounting has first outer mould and second outer mould on the base, and the top coincidence department of first outer mould and second outer mould is provided with the pouring hole.

Preferably, a cavity is formed in the base, and the cams and the positioning plates are located in the cavity.

Preferably, the positioning plate is provided with a plurality of sliding holes, and each ejector rod is respectively and slidably arranged in the corresponding sliding hole.

Preferably, each ejector rod is sleeved with a tension spring on the outer wall, one end of the tension spring is arranged on the positioning plate, and the other end of the tension spring is arranged on the rubber hammer.

Preferably, the ejector rod is rotatably provided with a roller at one end close to the cam, the outer wall of the cam is provided with an annular groove, and the roller is adapted in the annular groove.

Preferably, two parallel trapezoidal sliding grooves are formed in the base, trapezoidal sliding blocks are arranged at the bottom ends of the first outer die and the second outer die, and the trapezoidal sliding blocks are slidably arranged in the trapezoidal sliding grooves.

Preferably, the same side of the first outer die and the second outer die is provided with mounting lug plates, fastening bolts are slidably arranged in the two mounting lug plates, and fastening nuts are connected to the fastening bolts in a threaded mode.

The beneficial effects of the utility model are as follows:

according to the utility model, through the arrangement of the motor, the rotating shaft, the cam, the ejector rod and the rubber hammer, when the motor is connected through the rotating shaft and drives the cam to rotate in one direction, the ejector rod can drive the rubber hammer to beat the bottom end of the inner die in a circulating way, so that the inner die has a vibration effect, liquid poured among the first outer die, the second outer die and the inner die can vibrate, bubbles are discharged, the phenomenon that holes appear in a formed product is avoided, and the precision and the appearance degree of the product are guaranteed.

Drawings

FIG. 1 is a schematic diagram of a mold for one-time precision casting according to the present utility model;

FIG. 2 is a schematic diagram showing a front cross-sectional structure of a mold for one-time precision casting according to the present utility model;

FIG. 3 is a schematic diagram showing a partial structure of a cam profile of a mold for one-time precision casting according to the present utility model;

FIG. 4 is a schematic side view of a trapezoid chute of a mold for one-time precision casting according to the present utility model;

fig. 5 is a schematic top view sectional partial structure of a mounting ear plate of a disposable precision casting mold according to the present utility model.

In the figure: 1. a base; 2. a rotating shaft; 3. a cam; 4. a motor; 5. a positioning plate; 6. a push rod; 7. rubber hammer; 8. an inner mold; 9. a first outer mold; 10. a second outer mold; 11. pouring holes; 12. a cavity; 13. a slide hole; 14. a tension spring; 15. a roller; 16. an annular groove; 17. a trapezoidal chute; 18. a trapezoidal slider; 19. installing an ear plate; 20. a fastening bolt; 21. and (5) fastening the nut.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.

Referring to fig. 1-5, a mold for disposable precision casting forming comprises a base 1, a rotating shaft 2 is rotatably installed in the base 1, a plurality of cams 3 are installed on the rotating shaft 2, a motor 4 is installed on one side of the base 1, the rotating shaft 2 is installed on the output end of the motor 4, a positioning plate 5 is installed in the base 1, the positioning plate 5 is positioned above the cams 3, a plurality of ejector rods 6 are slidably installed in the positioning plate 5, each ejector rod 6 corresponds to each cam 3, a rubber hammer 7 is installed on each ejector rod 6, an inner mold 8 is arranged on the base 1, the rubber hammer 7 is positioned at the bottom end of the inner mold 8, a first outer mold 9 and a second outer mold 10 are movably installed on the base 1, pouring holes 11 are formed at the overlapping positions of the top ends of the first outer mold 9 and the second outer mold 10, the first outer die 9 and the second outer die 10 are mounted on the base 1 and are temporarily fixed, at the moment, liquid is poured into the first outer die 9 and the second outer die 10 through the pouring holes 11, a power supply is connected, the motor 4 is driven, an output shaft of the motor 4 drives the rotating shaft 2 to rotate unidirectionally in the base 1, the rotating shaft 2 drives the cam 3 to synchronously rotate, the ejector rod 6 and the cam 3 are matched, the ejector rod 6 performs circular reciprocating vertical movement in the positioning plate 5, the rubber hammer 7 is driven to circularly hammer the bottom end of the inner die 8, vibration of the inner die 8 is further achieved, bubbles in the liquid in the first outer die 9 and the second outer die 10 can rise to the surface of the liquid and are removed, the phenomenon that holes appear in a formed product is avoided, and precision and appearance of the product are guaranteed.

Referring to fig. 2-3, in the present embodiment, a cavity 12 is formed in the base 1, and a plurality of cams 3 and positioning plates 5 are all located in the cavity 12, and the cavity 12 provides sufficient rotation space for the cams 3.

Referring to fig. 3, in the present embodiment, a plurality of sliding holes 13 are formed on the positioning plate 5, each ejector rod 6 is slidably mounted in a corresponding sliding hole 13, and the sliding holes 13 provide sliding space and movement guiding for the ejector rod 6, so that the ejector rod 6 is ensured to slide smoothly and simultaneously the ejector rod 6 is promoted to move in the vertical direction.

Referring to fig. 3, in this embodiment, an extension spring 14 is sleeved on the outer wall of each ejector rod 6, one end of the extension spring 14 is installed on the positioning plate 5, the other end of the extension spring 14 is installed on the rubber hammer 7, when the outer wall of one end of the cam 3 far away from the rotating shaft 2 contacts with the ejector rod 6, the ejector rod 6 drives the rubber hammer 7 to rise, so that the extension spring 14 stretches and deforms, when the cam 3 rotates to the position, close to the outer wall of one end of the rotating shaft 2, of the cam 3 contacts with the ejector rod 6, the ejector rod 6 is driven to slide downwards by the counterforce after the extension spring 14, so that the falling efficiency of the ejector rod 6 is improved, the ejector rod 6 is always attached to the cam 3, and transmission between the cam 3 and the ejector rod 6 is ensured.

Referring to fig. 3, in this embodiment, a roller 15 is rotatably installed at one end of the ejector rod 6 near the cam 3, an annular groove 16 is formed on the outer wall of the cam 3, the roller 15 is adapted in the annular groove 16, and the cooperation of the roller 15 and the annular groove 16 reduces friction between the ejector rod 6 and the cam 3, so that transmission between the ejector rod 6 and the cam 3 is smoother.

Referring to fig. 4, in this embodiment, two parallel trapezoidal sliding grooves 17 are formed in the base 1, trapezoidal sliding blocks 18 are installed at the bottom ends of the first outer mold 9 and the second outer mold 10, the trapezoidal sliding blocks 18 are slidably installed in the trapezoidal sliding grooves 17, and the trapezoidal sliding grooves 17 and the trapezoidal sliding blocks 18 provide lateral limiting for the first outer mold 9 and the second outer mold 10, so that the first outer mold 9 and the second outer mold 10 are prevented from shaking on the base 1.

Referring to fig. 1 and 5, in the present embodiment, the first outer mold 9 and the second outer mold 10 are both installed with the installation lugs 19 on the same side, the fastening bolts 20 are slidably installed in the two installation lugs 19, the fastening nuts 21 are screwed on the fastening bolts 20, and the cooperation between the installation lugs 19, the fastening bolts 20 and the fastening nuts 21 realizes the fixation between the first outer mold 9 and the second outer mold 10, and makes the mold convenient to install and detach.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. The utility model provides a mould of disposable precision casting shaping, includes base (1), its characterized in that: the novel plastic casting machine is characterized in that the base (1) is rotationally provided with the rotating shaft (2), the rotating shaft (2) is provided with the plurality of cams (3), one side of the base (1) is provided with the motor (4), the rotating shaft (2) is provided with the output end of the motor (4), the base (1) is internally provided with the positioning plate (5), the positioning plate (5) is located above the cams (3), the positioning plate (5) is internally provided with the plurality of ejector rods (6), each ejector rod (6) corresponds to each cam (3) respectively, each ejector rod (6) is provided with the rubber hammer head (7), the base (1) is provided with the inner die (8), the rubber hammer head (7) is located the bottom end of the inner die (8), the top of the first outer die (9) and the second outer die (10) are movably arranged on the base (1), and pouring holes (11) are formed in the superposition positions of the top ends of the first outer die (9) and the second outer die (10).

2. The disposable precision casting mold according to claim 1, wherein: a cavity (12) is formed in the base (1), and the cams (3) and the positioning plates (5) are all located in the cavity (12).

3. The disposable precision casting mold according to claim 1, wherein: the positioning plate (5) is provided with a plurality of sliding holes (13), and each ejector rod (6) is respectively and slidably arranged in the corresponding sliding hole (13).

4. The disposable precision casting mold according to claim 1, wherein: and an extension spring (14) is sleeved on the outer wall of each ejector rod (6), one end of the extension spring (14) is installed on the locating plate (5), and the other end of the extension spring (14) is installed on the rubber hammer head (7).

5. The disposable precision casting mold according to claim 1, wherein: the ejector rod (6) is rotatably mounted at one end close to the cam (3), an annular groove (16) is formed in the outer wall of the cam (3), and the roller (15) is fit in the annular groove (16).

6. The disposable precision casting mold according to claim 1, wherein: two parallel trapezoidal sliding grooves (17) are formed in the base (1), trapezoidal sliding blocks (18) are arranged at the bottom ends of the first outer die (9) and the second outer die (10), and the trapezoidal sliding blocks (18) are slidably arranged in the trapezoidal sliding grooves (17).

7. The disposable precision casting mold according to claim 1, wherein: the two outer dies (9) and (10) are respectively provided with a mounting lug plate (19) on the same side, a fastening bolt (20) is slidably mounted in each mounting lug plate (19), and a fastening nut (21) is connected to the fastening bolt (20) in a threaded manner.