阅读说明：本技术 一种适用于口小肚大容器的压铸装置及压铸工艺 (Die-casting device and die-casting process suitable for container with small belly ) 是由 盛一原 盛世民 于 2020-08-08 设计创作，主要内容包括：本发明公开一种适用于口小肚大容器的压铸装置及压铸工艺,压铸装置包括盛液模具、压封板、充气胶套、通气芯子、第一推杆及第二推杆,第一推杆的升降端安装有通气芯子,通气芯子具有通气道,通气道的末端位于通气芯子的下部,充气胶套的开口端围绕通气道的末端密封于通气芯子的下部,充气胶套充气后的最终形状与预加工容器内壁的形状相一致,压封板装设于第二推杆的升降端,且能随第二推杆升降端升降密封/脱离盛液模具,压封板的中心具有第一通孔,通气芯子局部能够升降穿设于第一通孔,且充气胶套展开时的上端外壁紧贴于第一通孔的内壁。本发明的压铸装置,加工口小肚大的锡制品用料少,压铸保压时间和数控加工时间短,成品率高。(The invention discloses a die-casting device and a die-casting process suitable for a container with a small mouth and a big belly, wherein the die-casting device comprises a liquid containing die, a pressure sealing plate, an inflatable rubber sleeve, an air venting core, a first push rod and a second push rod, the lifting end of the first push rod is provided with the air venting core, the air venting core is provided with an air duct, the tail end of the air duct is positioned at the lower part of the air venting core, the opening end of the inflatable rubber sleeve surrounds the tail end of the air duct and is sealed at the lower part of the air venting core, the final shape of the inflated inflatable rubber sleeve is consistent with the shape of the inner wall of a container to be processed, the pressure sealing plate is arranged at the lifting end of the second push rod and can lift and seal/separate from the liquid containing die along with the lifting end of the second push rod, the center of the pressure sealing plate is provided with a first through hole, the part of. The die-casting device provided by the invention has the advantages that the used material of the tin product with a big and small processing opening is less, the die-casting pressure maintaining time and the numerical control processing time are short, and the yield is high.)

1. The utility model provides a die-casting device suitable for big container of small belly, includes flourishing liquid mould (101), the upper end of flourishing liquid mould (101) is open end, its characterized in that:

the liquid filling mold further comprises a press sealing plate (105), an air inflation rubber sleeve (103), a ventilation core (104), a first push rod (106), a second push rod (107) and an installation platform (108), wherein the installation platform (108) is fixedly arranged right above the open end of the liquid containing mold (101), the first push rod (106) and the second push rod (107) are both connected with the lower seat surface of the installation platform (108), the second push rods (107) are two and are positioned on two sides of the first push rod (106), the ventilation core (104) is installed at the lifting end of the first push rod (106), the ventilation core (104) is of a stepped structure with a large upper part and a small lower part, the ventilation core (104) is provided with a ventilation channel (104a), the tail end of the ventilation channel (104a) is positioned at the lower part of the ventilation core (104), and the tail end of the air inflation rubber sleeve (103) surrounding the ventilation channel (104a) is sealed at the lower part of the ventilation core (104), the final shape of the inflated rubber sleeve (103) is consistent with the shape of the inner wall of the preprocessing container, the press sealing plate (105) is arranged at the lifting end of the second push rod (107) and can lift along with the lifting end of the second push rod (107) to seal/separate from the opening end of the liquid containing mold (101), a first through hole is formed in the center of the press sealing plate (105), the lower step of the ventilation core (104) can lift to penetrate through the first through hole, and the outer wall of the upper end of the inflated rubber sleeve (103) is tightly attached to the inner wall of the first through hole when the inflated rubber sleeve (103) is unfolded.

2. The die casting apparatus for a belly-sized container according to claim 1, wherein: the ventilation core (104) is of a three-step structure, a flanging is arranged at the opening of the air inflation rubber sleeve (103), and the flanging is bonded to the lower step surface of the ventilation core (104).

3. The die casting apparatus for a belly-sized container according to claim 1, wherein: the inflatable rubber sleeve (103) is a silicone rubber mold capable of bearing high temperature of at least 600 degrees.

4. A die-casting device for a belly-sized container according to claim 3, wherein: the wall thickness of the opening part of the inflatable rubber sleeve (103) is 2 times of the wall thickness of the bulging belly.

5. The die casting apparatus for a belly-sized container according to claim 1, wherein: the liquid containing mold is characterized in that a second through hole is formed in the center of the bottom of the liquid containing mold (101), a demolding rod (110) penetrates through the second through hole, the upper end of the demolding rod (110) is connected with a supporting plate (109) located on the bottom surface of the liquid containing mold (101), and the lower end of the demolding rod (110) is connected with a third push rod (111) located below the liquid containing mold (101).

6. The die casting apparatus for a belly-sized container according to claim 1, wherein: the press sealing plate (105) is in a cap structure.

7. A construction process for processing a container with a small belly is characterized in that: the method comprises the following steps:

s1, manufacturing an inflatable rubber sleeve (103) which is consistent with the shape of the inner wall of the prefabricated container, and sealing the open end of the inflatable rubber sleeve (103) at the lower part of the ventilation core (104) around the tail end of the ventilation channel (104 a);

s2, utilizing the air duct (104a) to pump air to the inflatable rubber sleeve (103) so as to enable the inflatable rubber sleeve (103) to be in a vacuum state;

s3, starting a second push rod (107) until a pressure seal plate (105) covers the upper end of the liquid containing mould (101) and stops;

s4, injecting a fixed amount of tin liquid (102) into the liquid containing mold (101);

s5, starting the first push rod (106) to enable the lower end of the ventilation core (104) to extend into the liquid containing mold (101) from the first through hole until the lower step surface of the ventilation core (104) abuts against the upper end surface of the press seal plate (105) and then stops;

s6, inflating the inflatable rubber sleeve (103) until the air pressure intensity in the inflatable rubber sleeve (103) reaches 10Kg/mL, maintaining the pressure for a certain time, opening the die, performing vacuum air suction, moving the air core (104) upwards, taking the workpiece and conveying the workpiece to the next station.

8. The construction process for processing the container with the small belly according to claim 7 is characterized in that: in S6, the dwell time was 30S.

9. The construction process for processing the container with the small belly according to claim 7 is characterized in that: and the method also comprises a step S2a, wherein release agents are sprayed on the inner wall of the liquid containing mould (101), the upper surface of the supporting plate (109) and the outer wall of the inflatable rubber sleeve (103).

Technical Field

The invention relates to the technical field of tin product manufacturing, in particular to a die-casting device and a die-casting process suitable for a container with a small belly.

Background

The metallic tin is a metal with soft texture, and has low melting point and strong plasticity. The tin product is a traditional, elegant, luxurious, beautiful and practical metal handicraft, and is mainly used for tableware, wine sets, tea sets, sacrificial utensils, stationery, smoking sets, coffee sets, vases, trophies, ornaments and the like. It is elaborately made by adopting high-purity refined tin through a plurality of complicated procedures.

Disclosure of Invention

Aiming at the defects in the prior art, the invention provides a die casting device and a die casting process suitable for a container with a small belly, so that the wall thickness of the container is uniform, and the manufacturing cost is reduced.

In order to achieve the purpose, the invention adopts the following technical scheme:

the invention provides a die-casting device suitable for a container with a small mouth and a large belly, which comprises a liquid containing die, a press sealing plate, two inflatable rubber sleeves, a ventilating core, a first push rod, a second push rod and a mounting platform, wherein the upper end of the liquid containing die is an open end, the mounting platform is fixedly arranged right above the open end of the liquid containing die, the first push rod and the second push rod are both connected with the lower seat surface of the mounting platform, the two second push rods are positioned at two sides of the first push rod, the lifting end of the first push rod is provided with the ventilating core, the ventilating core is provided with a ventilating channel, the tail end of the ventilating channel is positioned at the lower part of the ventilating core, the opening end of the inflatable rubber sleeves surrounds the tail end of the ventilating channel and is sealed at the lower part of the ventilating core, the final shape of the inflated inflatable rubber sleeves is consistent with the shape of the inner wall of a pre-processing container, the press sealing plate is arranged at, and the sealing/separating device can lift and seal/separate from the open end of the liquid containing mould along with the lifting end of the second push rod, a first through hole is formed in the center of the press sealing plate, the lower step of the ventilation core can lift and penetrate through the first through hole, and the outer wall of the upper end of the inflatable rubber sleeve is tightly attached to the inner wall of the first through hole when the inflatable rubber sleeve is unfolded.

As an improved technical scheme, the ventilation core is of a three-step structure, a flanging is arranged at the opening of the inflatable rubber sleeve, and the flanging is bonded on the lower step surface of the ventilation core.

As an improved technical scheme, the inflatable rubber sleeve is a silicon rubber mold capable of bearing high temperature of at least 600 degrees.

As an improved technical scheme, the wall thickness of the opening part of the inflatable rubber sleeve is 2 times of that of the bulging wall.

As an improved technical scheme, a second through hole is formed in the center of the bottom of the liquid containing mold, a demolding rod penetrates through the second through hole, the upper end of the demolding rod is connected with a supporting plate located on the bottom surface of the liquid containing mold, and the lower end of the demolding rod is connected with a third push rod located below the liquid containing mold.

As an improved technical scheme, the press sealing plate is in a cap structure.

The second aspect of the invention provides a construction process for processing a container with a small belly, which comprises the following steps:

s1, manufacturing an inflatable rubber sleeve which is consistent with the shape of the inner wall of the prefabricated container, and sealing the open end of the inflatable rubber sleeve at the lower part of the ventilation core around the tail end of the ventilation channel;

s2, exhausting air from the inflatable rubber sleeve by using the air duct to enable the inflatable rubber sleeve to be in a vacuum state;

s3, starting the second push rod until the press seal plate covers the upper end of the liquid containing mould and stops;

s4, injecting a certain amount of tin liquid into the liquid containing mold;

s5, starting the first push rod to enable the lower end of the ventilation core to extend into the liquid containing mould from the first through hole until the lower step surface of the ventilation core is pressed against the upper end surface of the press sealing plate and then stops;

and S6, inflating the inflatable rubber sleeve until the air pressure strength in the inflatable rubber sleeve reaches 10Kg/mL, maintaining the pressure for a certain time, opening the mold, performing vacuum air suction, moving the venting core upwards, taking the workpiece and conveying the workpiece to the next station.

As a modified solution, in S6, the dwell time is 30S.

As an improved technical scheme, the method also comprises a step S2a, wherein release agents are sprayed on the inner wall of the liquid containing mould, the upper surface of the supporting plate and the outer wall of the inflatable rubber sleeve.

The die-casting device and the die-casting process provided by the invention are suitable for the container with the small mouth and the big belly, the used materials for processing the tin product with the small mouth and the big belly are less, the die-casting pressure maintaining time and the numerical control processing time are short, and the yield is high.

Drawings

In order to more clearly illustrate the detailed description of the invention or the technical solutions in the prior art, the drawings that are needed in the detailed description of the invention or the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a die-casting device suitable for a container with a small belly according to an embodiment of the invention;

FIG. 2 is an enlarged view taken at A in FIG. 1;

reference numerals: the device comprises a liquid containing mold 101, an inflatable rubber sleeve 103, a ventilating core 104, a ventilating channel 104a, a press sealing plate 105, a first push rod 106, a second push rod 107, a mounting platform 108, a supporting plate 109, a demoulding rod 110 and a third push rod 111.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be embodied in many different forms than those herein described and it will be apparent to those skilled in the art that similar modifications can be made without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the embodiments set forth herein.

It will be understood that when an element is referred to as being "secured to," "disposed on," or "mounted on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, a die casting device suitable for a small belly container comprises a liquid containing die 101, a press sealing plate 105, an air inflation rubber sleeve 103, a ventilation core 104, a first push rod 106, a second push rod 107 and a mounting platform 108.

Specifically, the upper end of the liquid containing mold 101 is an open end, the mounting platform 108 is fixedly arranged right above the open end of the liquid containing mold 101, the first push rod 106 and the second push rod 107 are both connected with the lower seat surface of the mounting platform 108, the second push rods 107 are two and are positioned at two sides of the first push rod 106, the lifting end of the first push rod 106 is provided with the vent core 104, the vent core 104 is in a step-shaped structure with a large upper part and a small lower part, the vent core 104 is provided with a vent passage 104a, the tail end of the vent passage 104a is positioned at the lower part of the vent core 104, the opening end of the inflatable rubber sleeve 103 is sealed at the lower part of the vent core 104 around the tail end of the vent passage 104a, the final shape of the inflated rubber sleeve 103 is consistent with the shape of the inner wall of the preprocessing container, the press sealing plate 105 is arranged at the lifting end of the second push rod 107 and can lift and seal/separate from the open end of, the center of the pressure sealing plate 105 is provided with a first through hole, the lower step of the ventilation core 104 can be lifted and penetrated through the first through hole, and the outer wall of the upper end of the inflatable rubber sleeve 103 when being unfolded is tightly attached to the inner wall of the first through hole.

In this embodiment, the liquid containing mold 101 may be in a regular shape or a shape matched with the inflation state of the inflatable rubber sleeve 103, when the liquid containing mold 101 is in a regular shape, a shaping member adapted to the outer wall of the prefabricated tank body needs to be installed in the liquid containing mold 101, and when the liquid containing mold 101 is in a shape matched with the inflation state of the inflatable rubber sleeve 103, the liquid containing mold 101 is opened in a double-opening manner.

In this embodiment, the end of the air duct 104a is provided with a plurality of mutually communicated high-pressure air inlet and outlet holes or a plurality of mutually communicated high-pressure air inlet and outlet grooves, and the shape thereof is sufficient for quick air suction and air inlet, and is not limited to a specific shape.

As a preferred technical scheme, the vent core 104 is of a three-step structure, a flanging is arranged at an opening of the inflatable rubber sleeve 103, the flanging is adhered to a lower step surface of the vent core 104, and during die casting, the flanging is clamped between the lower step surface of the vent core 104 and an upper end surface of the press seal plate 105 to play a role in sealing, so that air leakage between the lower step surface of the vent core 104 and the press seal plate 105 can be avoided.

In this embodiment, the inflatable rubber sleeve 103 is a silicone rubber mold capable of at least bearing a high temperature of 600 degrees, the inflatable rubber sleeve 103 has good flexibility and elasticity, the inner wall of the tin workpiece is positioned through the inflatable rubber sleeve 103, and the production efficiency is high, the deformation is small, and the precision is high.

In this embodiment, a second through hole is formed in the center of the bottom of the liquid containing mold 101, a demolding rod 110 penetrates through the second through hole, the upper end of the demolding rod 110 is connected to a supporting plate 109 located on the bottom surface of the liquid containing mold 101, the lower end of the demolding rod 110 is connected to a third push rod 111 located below the liquid containing mold 101, and the supporting plate 109 moves up and lifts the tin product by being pushed by the third push rod 111 to perform forced demolding.

In this embodiment, the pressure sealing plate 105 is a cap structure, and the thickness of the opening of the inflatable rubber sleeve 103 is 2 times of the thickness of the bulge.

In the present embodiment, the first push rod 106, the second push rod 107, and the third push rod 111 are any one of an air cylinder, a hydraulic cylinder, and an electric push rod.

Based on the above, the embodiment provides a construction process for processing a container with a small mouth and a big belly, which includes the following steps:

s1, manufacturing an inflatable rubber sleeve 103 which is consistent with the shape of the inner wall of the prefabricated container, and sealing the open end of the inflatable rubber sleeve 103 at the lower part of the ventilation core 104 around the tail end of the ventilation channel 104 a;

s2, utilizing the air duct 104a to pump air to the inflatable rubber sleeve 103, so that the inflatable rubber sleeve 103 is in a vacuum state;

s3, starting the second push rod 107 until the press seal plate 105 covers the upper end of the liquid containing mould 101 and stops;

s4, injecting a certain amount of molten tin 102 into the liquid containing mold 101;

s5, starting the first push rod 106 to make the lower end of the ventilation core 104 extend into the liquid containing mould 101 from the first through hole until the lower step surface of the ventilation core 104 is pressed against the upper end surface of the press close plate 105 and then stops;

s6, inflating the inflatable rubber sleeve 103 until the air pressure intensity in the inflatable rubber sleeve 103 reaches 10Kg/mL, maintaining the pressure for a certain time, opening the die, performing vacuum air suction, moving the air core 104 upwards, taking the workpiece and conveying the workpiece to the next station.

In S6, the dwell time was 30S.

And S2a, spraying release agents on the inner wall of the liquid containing mold 101, the upper surface of the supporting plate 109 and the outer wall of the inflatable rubber sleeve 103.

In summary, according to the die-casting device suitable for the container with the small belly, provided by the embodiment, since the molding member of the inner wall of the container is the telescopic inflatable rubber sleeve 103, the inner wall of the container can be molded at one time, so that the consumption of the molten tin 102 is reduced, the die-casting pressure maintaining time and the numerical control processing time are shortened, and the yield is improved.

On the premise of using an outer wall plastic part with the same process, in the process test of the same molten tin 102 workpiece, the die casting device provided by the invention and the die casting device adopting the common straight barrel core pulling in the prior art have the advantages that the material consumption is reduced by 4/5, the pressure maintaining time is shortened by 9/10, the numerical control processing time is shortened by 2/3, and the yield is improved to 98% from the original 90%.