Go piece demolding device
By designing a Go piece demolding device including upper mold, lower mold, sealing pin, ejection cylinder and gas injection structure, the problem of easy damage to the arc surface of the traditional injection molding method is solved, and an efficient and damage-free mold demolding process is achieved.
Patent Information
- Application Number
- CN202420590163.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-26
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-26
AI Technical Summary
In the production of traditional Go pieces, injection molding methods make the thimble easy to destroy the arc surface and difficult to remove the mold efficiently.
A Go piece demolding device is designed, including an upper mold, a lower mold, a sealing pin, an ejection cylinder and an air injection structure. An ejection hole is opened on the bottom surface of the mold cavity of the lower mold, and the sealing pin is threadedly connected to the bottom surface of the lower mold. During the release, air is pumped through the air injection structure to separate the sealing pin from the lower mold, thereby causing the chess piece to break out of the mold cavity.
It realizes efficient mold release without destroying the arc surface during the demolding process of Go pieces, avoiding the problem of arc surface damage in traditional methods.
Smart Images
Figure CN222554134U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of go production, in particular to a go chess piece demoulding device. Background Art
[0002] Go is a strategic two-player board game, known as "Yi" in ancient China. It is popular in East Asian countries and is one of the four arts of music, chess, calligraphy and painting. Go originated in China and is said to have been created by Emperor Yao. There are records of it in the Spring and Autumn Period and the Warring States Period. It was introduced to Japan via Korea during the Sui and Tang Dynasties, and spread to Europe and the United States. Go contains the rich connotations of Chinese culture and it is the embodiment of Chinese culture and civilization.
[0003] There are two common shapes of Go pieces, one is a single-sided arc, also called a single-sided convex, and the other is a double-sided arc, also called a double-sided convex. During production, they are generally injected into the mold and then demolded. The traditional method is to remove the upper mold and eject the chess blank from the bottom to the top of the mold. Due to the injection molding method, the ejector pin can easily damage the arc surface.
[0004] In view of this, it is urgent to design a demoulding device for chess pieces, in which an ejection hole is opened on the bottom surface of the cavity of the lower mold, and a sealing pin is rotatably connected to the bottom surface of the lower mold. During injection molding, the sealing pin is threadedly connected to the bottom surface of the lower mold, so that the sealing pin and the bottom surface of the cavity are integrated. During demoulding, the sealing pin is separated from the lower mold by the action of the demoulding cylinder to form a gap, and then air is pumped in, so that the chess piece is separated from the cavity. Utility Model Content
[0005] In order to solve the deficiencies of the above-mentioned prior art, the purpose of the utility model is to provide a Go chess piece demolding device, comprising: an upper mold, a lower mold, a sealing pin, an ejector cylinder and an air injection structure, the upper mold and the lower mold cooperate with each other in the vertical direction, a mold cavity is formed between the upper mold and the lower mold, the bottom surface of the mold cavity is threadedly connected with the sealing pin, the bottom surface of the sealing pin is installed with the air injection structure, an ejector cylinder is arranged in the air injection structure, and the ejector cylinder is dynamically connected to the sealing pin.
[0006] Furthermore, the upper mold includes: an upper mold body, an injection head and an injection port, the injection head is fixedly installed on the top surface of the upper mold body, the injection port is installed at the center of the bottom surface of the upper mold body, and the injection port and the injection head are connected through a connecting pipe.
[0007] Furthermore, the lower mold comprises: a lower mold body, a mold cavity and a sealing port, the mold cavity is arranged on the top surface of the lower mold body, and the sealing port is opened on the bottom surface of the mold cavity.
[0008] Furthermore, the diameter of the sealing pin gradually decreases along the vertical direction, and a thread is engraved on the outer diameter surface of the sealing pin.
[0009] Furthermore, the gas injection structure includes: a base, an gas injection pump, a connecting hole and an expansion groove. The gas injection pump is fixedly installed on both sides of the base, the output end of the gas injection pump is connected to the connecting hole, an expansion groove is arranged between the connecting holes, and the expansion groove is arranged on the bottom surface of the sealing pin and forms a sealed cavity with the lower mold body.
[0010] Furthermore, the ejection cylinder is fixedly mounted on the bottom surface of the base, and the output end of the ejection cylinder is fixedly connected to the bottom surface of the sealing pin.
[0011] Beneficial effects:
[0012] The utility model provides a go chess piece demoulding device, wherein an ejection hole is provided on the bottom surface of the mold cavity of the lower mold, and a sealing pin is rotatably connected to the bottom surface of the lower mold. During injection molding, the sealing pin is threadedly connected to the bottom surface of the lower mold, so that the sealing pin and the bottom surface of the mold cavity are integrated. During demoulding, the sealing pin is separated from the lower mold by a demoulding cylinder to form a gap, and then air is pumped in, so that the chess piece is separated from the mold cavity. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 This is a schematic diagram of the structure of a Go chess piece demoulding device of the utility model;
[0014] Markings in the figure: 1-upper mold, 2-lower mold, 3-sealing pin, 4-ejection cylinder, 5-gas injection structure, 11-upper mold body, 12-injection head, 13-injection port, 14-connecting pipe, 21-lower mold body, 22-mold cavity, 23-sealing port, 51-base, 52-gas injection pump, 53-connecting hole, 54-expansion groove. DETAILED DESCRIPTION
[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the utility model.
[0016] As shown in the figure, the utility model discloses a Go chess piece demoulding device, comprising: an upper mold 1, a lower mold 2, a sealing pin 3, an ejector cylinder 4 and an air injection structure 5, the upper mold 1 and the lower mold 2 cooperate with each other in the vertical direction, and a mold cavity 22 is formed between the upper mold 1 and the lower mold 2, the bottom surface of the mold cavity 22 is threadedly connected with the sealing pin 3, the bottom surface of the sealing pin 3 is installed with the air injection structure 5, an ejector cylinder 4 is arranged in the air injection structure 5, and the ejector cylinder 4 is dynamically connected to the sealing pin 3.
[0017] In this embodiment, the upper mold 1 includes: an upper mold body 11, an injection head 12 and an injection port 13. The injection head 12 is fixedly installed on the top surface of the upper mold body 11, and the injection port 13 is installed at the center of the bottom surface of the upper mold body 11. The injection port 13 and the injection head 12 are connected through a connecting pipe 14.
[0018] In this embodiment, the lower mold 2 includes: a lower mold body 21 , a mold cavity 22 and a sealing port 23 . The mold cavity 22 is disposed on the top surface of the lower mold body 21 , and the sealing port 23 is opened on the bottom surface of the mold cavity 22 .
[0019] In this embodiment, the diameter of the sealing pin 3 gradually decreases along the vertical direction, and the outer diameter surface of the sealing pin 3 is engraved with threads.
[0020] In this embodiment, the gas injection structure 5 includes: a base 51, an gas injection pump 52, a connecting hole 53 and an expansion groove 54. The gas injection pump 52 is fixedly installed on the two side surfaces of the base 51, and the output end of the gas injection pump 52 is connected to the connecting hole 53. An expansion groove 54 is arranged between the connecting holes 53. The expansion groove 54 is arranged on the bottom surface of the sealing pin 3 and forms a sealed cavity with the lower mold body 21.
[0021] In this embodiment, the ejection cylinder 4 is fixedly mounted on the bottom surface of the base 51 , and the output end of the ejection cylinder 4 is fixedly connected to the bottom surface of the sealing pin 3 .
[0022] Working principle:
[0023] First, since an upper mold 1 and a lower mold 2 are provided, the upper mold 1 is composed of an upper mold body 11, an injection head 12 and an injection port 13. The injection head 12 is fixedly installed at the center of the top surface of the upper mold body 11, and the injection port 13 is arranged at the center of the bottom surface of the upper mold body 11. The injection head 12 and the injection port 13 are connected through a connecting pipe 14.
[0024] The lower mold 2 is composed of a lower mold body 21, a mold cavity 22 and a sealing port 23. The mold cavity 22 is provided at the center of the top surface of the lower mold body 21. The mold cavity 22 and the upper mold body 11 are molded together to form a sealed cavity, which matches the Go chess piece. The sealing port 23 is provided on the bottom surface of the mold cavity 22. The sealing port 23 matches the sealing pin 3. When the sealing pin 3 is connected to the lower mold body 21, the sealing pin 3 is filled in the sealing port 23, thereby closing the mold cavity 22.
[0025] The sealing pin 3 is gradually reduced in the vertical direction, and the outer diameter surface of the sealing pin 3 is engraved with a thread, so that the sealing pin 3 and the lower mold body 21 can be threadedly connected. When the sealing pin 3 is engaged in the lower mold body 21, the sealing pin 3 and the lower mold body 21 are sealed. After the sealing pin 3 is threaded out of the lower mold body 21, a gap is left between the lower mold body 21 and the sealing pin 3 due to the characteristic that the sealing pin 3 is gradually reduced in the vertical direction.
[0026] The gas injection structure 5 is composed of a base 51, a gas injection pump 52, a connecting hole 53 and an expansion groove 54. The base 51 is fixedly mounted on the bottom surface of the lower mold body 21. The gas injection pumps 52 are fixedly mounted on both sides of the base 51. The output end of the gas injection pump 52 is connected to the connecting hole 53. An expansion groove 54 is arranged between the connecting holes 53, and the expansion groove 54 is just arranged at the bottom of the sealing pin 3. When the sealing pin 3 is threaded out of the lower mold body 21, the gap left between the lower mold body 21 and the sealing pin 3 is connected to the expansion groove 54. The gas injection pump 52 injects air into the base 51, the air is pressurized in the expansion groove 54, and the air is injected into the gap, thereby ejecting the Go pieces.
[0027] Among them, the ejection cylinder 4 is fixedly installed on the bottom surface of the base 51, and the output end of the ejection cylinder 4 is fixedly connected to the bottom surface of the sealing pin 3. As the power end of the ejection cylinder 4 rotates and retracts, the sealing pin 3 is driven to be threadedly connected or withdrawn with the lower mold body 21 in the vertical direction.
[0028] The utility model provides a go chess piece demoulding device, in which an ejection hole is provided on the bottom surface of the mold cavity 22 of the lower mold 2, and a sealing pin 3 is rotatably connected to the bottom surface of the lower mold 2. During injection molding, the sealing pin 3 is threadedly connected to the bottom surface of the lower mold 2, so that the sealing pin 3 and the bottom surface of the mold cavity 22 are integrated. During demoulding, the sealing pin 3 is separated from the lower mold 2 by a demoulding cylinder to form a gap, and then air is pumped in, so that the chess piece is separated from the mold cavity 22.
[0029] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. All modifications, equivalent substitutions, improvements, etc. within the spirit and principles of the present invention should be included in the protection scope of the present invention.
Claims
1. A Go chess piece demoulding device, comprising: An upper mold (1), a lower mold (2), a sealing pin (3), an ejector cylinder (4) and an air injection structure (5), characterized in that the upper mold (1) and the lower mold (2) cooperate with each other in the vertical direction, a mold cavity (22) is formed between the upper mold (1) and the lower mold (2), the bottom surface of the mold cavity (22) is threadedly connected to the sealing pin (3), the bottom surface of the sealing pin (3) is installed with the air injection structure (5), an ejector cylinder (4) is arranged in the air injection structure (5), and the ejector cylinder (4) is dynamically connected to the sealing pin (3).
2. A Go chess piece demoulding device according to claim 1, characterized in that: The upper mold (1) comprises: an upper mold body (11), an injection head (12) and an injection port (13); the injection head (12) is fixedly mounted on the top surface of the upper mold body (11); the injection port (13) is mounted at the center of the bottom surface of the upper mold body (11); the injection port (13) and the injection head (12) are connected via a connecting pipe (14).
3. A Go chess piece demoulding device according to claim 2, characterized in that: The lower mold (2) comprises: a lower mold body (21), a mold cavity (22) and a sealing port (23); the mold cavity (22) is arranged on the top surface of the lower mold body (21), and the sealing port (23) is opened on the bottom surface of the mold cavity (22).
4. A Go chess piece demoulding device according to claim 3, characterized in that: The diameter of the sealing pin (3) gradually decreases in the vertical direction, and a thread is engraved on the outer diameter surface of the sealing pin (3).
5. A Go chess piece demoulding device according to claim 4, characterized in that: The gas injection structure (5) comprises: a base (51), a gas injection pump (52), a connecting hole (53) and an expansion groove (54); the gas injection pump (52) is fixedly mounted on two side surfaces of the base (51); the output end of the gas injection pump (52) is connected to the connecting hole (53); an expansion groove (54) is arranged between the connecting holes (53); the expansion groove (54) is arranged on the bottom surface of the sealing pin (3) and forms a sealed cavity with the lower mold body (21).
6. A Go chess piece demoulding device according to claim 5, characterized in that: The ejection cylinder (4) is fixedly mounted on the bottom surface of the base (51), and the output end of the ejection cylinder (4) is fixedly connected to the bottom surface of the sealing pin (3).