Building block assembling structure, demolding method, mold insert pin, mold, building block and toy

Abstract

The invention relates to the technical field of toys, and provides a building block assembling structure, a demolding method, a mold insert pin, a mold, a building block and a toy, and the building block assembling structure comprises a horn mouth, a flat position and a groove position which are arranged in sequence; the flat position extends in the axial direction of the building block assembling structure to form a first width; the first width ranges from 0.3 mm to 0.6 mm. According to the mold insert pin, the first width of the flat position is set to be 0.3-0.6 mm, and the flat position is matched with the horn mouth and the groove position, so that the opening part of the mold insert pin is not easy to damage or white during demolding, the probability that the opening part is damaged or white by pulling is reduced, the product quality is improved, and the demolding cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of toy technology, specifically to a building block assembly structure, a demolding method, a mold insert, a mold, building blocks, and a toy. Background Technology

[0002] When molding holes or grooves, mold inserts need to be inserted into the holes or grooves. During demolding, the mold inserts should dislodge from the holes or grooves. However, during this dislodgement, the openings of the mold inserts are often damaged or whitened, affecting product quality. Figure 9 , Figure 10 , Figure 11 As shown, how to solve the problem of the mold insert being damaged or whitened when it comes out has become a technical challenge in the current demolding operation. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the purpose of this invention is to provide a building block assembly structure, a demolding method, a mold insert, a mold, building blocks, and a toy.

[0004] According to the present invention, a modular assembly structure includes a flared opening, a flat position, and a recessed position arranged sequentially. The flat position extends along the axial direction of the modular assembly structure to form a first width; The first width is 0.3 to 0.6 mm.

[0005] According to a demolding method for a modular assembly structure provided by the present invention, the first width of a flat surface disposed on the modular assembly structure is set to 0.3-0.6 mm, wherein the first width is formed by the flat surface extending along the axial direction of the modular assembly structure, wherein: The front and rear ends of the flat surface are respectively equipped with a flared opening and a recessed area.

[0006] Preferably, it further includes at least one of the following features: The undercut at the location of the groove is 0.05 to 0.08 mm; The flared opening extends along the axial direction of the modular assembly structure to form a second width, the second width being ≥0.2 mm; The draft angle of the flared mouth is >8°; The wall thickness at the location of the flat position is 1.2 to 2.5 mm.

[0007] Preferably, the first width is 0.4 to 0.5 mm.

[0008] Preferably, the undercut at the location of the groove is 0.06 to 0.07 mm.

[0009] Preferably, the second width is 0.3 to 0.6 mm.

[0010] Preferably, the second width is 0.4 to 0.5 mm.

[0011] Preferably, the wall thickness at the location of the flat position is 1.3 to 2.4 mm.

[0012] Preferably, the wall thickness at the location of the flat position is 1.4 to 2.3 mm.

[0013] Preferably, the wall thickness at the location of the level position is 1.5 to 2.2 mm.

[0014] Preferably, the wall thickness at the location of the flat position is 1.6 to 2.1 mm.

[0015] Preferably, the wall thickness at the location of the flat position is 1.7 to 2 mm.

[0016] Preferably, the wall thickness at the location of the flat position is 1.8 to 1.9 mm.

[0017] According to the present invention, a mold insert is provided to match the aforementioned building block assembly structure.

[0018] A mold according to the present invention includes the aforementioned mold insert pin.

[0019] The present invention provides a building block comprising the building block assembly structure or manufactured using the demolding method of the building block assembly structure.

[0020] A toy according to the present invention includes the aforementioned building blocks.

[0021] Compared with the prior art, the present invention has the following beneficial effects: This invention sets the first width of the flat part of the inner wall of the opening to 0.3 to 0.6 mm and coordinates it with the flared opening and the groove, so that the mold insert is less likely to be damaged or whitened during demolding, reducing the probability of the opening being damaged or whitened, improving product quality and reducing demolding costs. Attached Figure Description

[0022] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a cross-sectional schematic diagram of the hole or groove structure in this invention; Figure 2 A structural schematic diagram showing the wall thickness at the location of the horizontal position; Figure 3 This is a schematic diagram of the structure with the first width at the same level; Figure 4 A structural diagram showing the amount of backing at the flat position; Figure 5A schematic diagram showing the distance from the undercut to the orifice at the flat position. Figure 6 This is a structural schematic diagram of the draft angle of the bell mouth; Figure 7 This is a schematic diagram of the structure of a hole or groove in the prior art; Figure 8 This is a schematic cross-sectional view of a hole or groove in the prior art. Figure 9 This is a structural diagram of the product when it is pulled white during demolding; the arrow points to the area where the whitening occurs. Figure 10 This is a structural diagram of the product when it is pulled white during demolding; the arrow points to the area where the whitening occurs. Figure 11 This is a structural comparison diagram of a qualified product and a damaged product. The left side is the qualified product, and the right side is the product with a damaged opening. The damaged part is the area within the elliptical region. Figure 12 This is a schematic diagram of the structure of the mold insert pin.

[0023] The diagram shows: flat position 1; 2. Horn mouth; Groove position 3; 4. Mold insert pins. Detailed Implementation

[0024] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0025] Example 1: To address the problem of mold inserts 4 being damaged or whitened at the opening when ejecting from the building block assembly structure during toy part demolding, this invention provides a building block assembly structure comprising a flared opening 2, a flat position 1, and a recessed position 3 arranged sequentially, as shown below. Figure 1 As shown, the flat part 1 extends along the axial direction of the opening to form the first width. During demolding, the mold insert 4 mainly has extrusion friction with the flat part 1. The reason why the opening of the building block assembly structure is damaged or turned white is caused by the extrusion friction between the mold insert 4 and the flat part 1 when the building block assembly structure is removed. Experiments have shown that the damage or whitening of the opening of the building block assembly structure is related to the first width of the flat part 1. If the first width is too wide, the opening is prone to being turned white; if the first width is too narrow, the opening is prone to being damaged.

[0026] Furthermore, the first width of position 1 is denoted as N, such as Figure 3As shown, the value of N is set to 0.3~0.6 mm. In practical applications, the first width can be designed to be 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, etc., which can reduce the chance of the opening being damaged or whitened, thus improving the quality of the product.

[0027] The present invention also provides a demolding method for a building block assembly structure, wherein the first width of the flat position 1 configured on the building block assembly structure is set to 0.3 to 0.6 mm, the first width is formed by the flat position 1 extending along the axial direction of the building block assembly structure, the front end of the flat position 1 is provided with a flared mouth 2, and the rear end of the flat position 1 is provided with a groove position 3.

[0028] It should be noted that the block assembly structure, through the setting of the first width of the flat position 1, and in coordination with the structure of the flared mouth 2, the groove position 3, etc., can solve the problem of the opening of the block assembly structure being torn or whitened. This reduces the probability of the opening of the block assembly structure being torn or whitened when the mold insert 4 is removed from the block assembly structure, thus improving the appearance quality of the product.

[0029] Specifically, the parameters affecting the appearance quality of the product include the first width of the flat part 1, the draft angle of the flared mouth 2, the undercut amount at the location of the groove 3, and the wall thickness at the location of the flat part 1. All of these parameters will affect the appearance quality of the product. The combination of all the above parameters can better solve the problem of the opening of the building block assembly structure being damaged or whitened. The combination of all the above parameters can make the appearance quality of the building block assembly structure better.

[0030] The flared opening 2 extends along the axial direction of the modular assembly structure to form a second width, so as to play a better guiding role and facilitate production and processing.

[0031] like Figure 5 As shown, the second width is K, K≥0.2mm, and the preferred value of K is 0.3 to 0.6mm. For example, the specific values ​​of K can be 0.3mm, 0.4mm, 0.5mm, 0.6mm, etc.

[0032] Specifically, such as Figure 2 As shown, the wall thickness at position 1 is L. L can also affect the product quality during demolding. The value of L is 1.2 to 2.5 mm. For example, the specific values ​​of L can be 1.2 mm, 1.3 mm, 1.4 mm, 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2 mm, 2.1 mm, 2.2 mm, 2.3 mm, 2.4 mm, 2.5 mm, etc. The specific value can be flexibly selected according to the actual size of the product and the application scenario.

[0033] like Figure 4As shown, the undercut at groove position 3 is M, and the value of M ranges from 0.05 to 0.08 mm. For example, the specific values ​​of M can be 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, etc. It should be noted that the undercut here refers to the undercut on one side of the opening.

[0034] To ensure the initial width of the opening 1 is designed to be 0.3–0.6 mm, the ends of the modular assembly structure are transitioned by a flared opening 2 structure, with a draft angle >8°. Figure 6 As shown, on the one hand, by setting the horn-shaped structure 2, the first width of the flat position 1 can be flexibly adjusted; on the other hand, it is also conducive to rapid assembly and improves assembly efficiency.

[0035] The present invention also provides a mold insert for matching a building block assembly structure, specifically, as shown in the example. Figure 12 As shown, the modular assembly structure of this invention can be obtained by axial injection molding using a mold insert pin during the molding process.

[0036] The present invention also provides a mold, including a mold insert.

[0037] The present invention also provides a building block, including a building block assembly structure or a building block assembly structure demolding method.

[0038] The present invention also provides a toy, including the building blocks of the present invention.

[0039] This invention addresses the issue that during demolding of toy parts, the opening of the building block assembly structure is easily damaged or whitened when the mold insert 4 exits the assembly. Experiments have shown that this damage or whitening is related to the proper setting of parameters such as the first width of the flat part 1, the wall thickness at the flat part 1, the draft angle, and the undercut amount at the groove location. By setting the first width of the flat part 1 to 0.3–0.6 mm, this technical problem can be significantly improved. The wall thickness at the flat position 1 is set to 1.2-2.5 mm, the draft angle of the flared opening is set to >8°, and the undercut at the groove position is 0.05-0.08 mm. Through the coordinated cooperation of the flat position 1 with the flared openings 2 and groove positions 3 on both sides, the squeezing force between the mold insert 4 and the flat position 1 is moderate when the mold insert 4 comes out of the building block assembly structure. This can reduce or avoid the situation where the opening of the building block assembly structure is damaged or whitened, thereby improving the quality of the product and reducing the production cost of the product.

[0040] Example 2: This embodiment is the first preferred example of Embodiment 1.

[0041] In this embodiment, the front end of the building block assembly structure is equipped with a flared mouth 2, the rear end is equipped with a groove position 3, and the first width of the middle flat position 1 is set to 0.4 mm. When the mold insert pin 4 comes out of the building block assembly structure, the probability of the opening of the building block assembly structure being damaged or whitened is low, and most products have a good appearance.

[0042] Example 3: This embodiment is the second preferred example of Embodiment 1.

[0043] In this embodiment, the front end of the building block assembly structure is equipped with a flared mouth 2, the rear end is equipped with a groove position 3, the first width of the middle flat position 1 is set to 0.5 mm, and the wall thickness at the flat position 1 is set to 1.8 mm. When the mold insert pin 4 comes out of the building block assembly structure, the probability of the opening of the building block assembly structure being damaged or whitened is low, and most products have a good appearance.

[0044] Example 4: This embodiment is the third preferred example of Embodiment 1.

[0045] In this embodiment, the first width of the flat position 1 is set to 0.3 mm, the wall thickness of the flat position 1 is set to 2 mm, and the undercut at the groove position 3 is 0.07 mm. Through the coordinated cooperation of the flat position 1 with the flared mouth 2 and the groove position 3 on both sides, the probability of the opening of the block assembly structure being damaged or whitened when the mold insert pin 4 comes out of the block assembly structure is extremely low, and most products have a good appearance.

[0046] Example 5: This embodiment is the fourth preferred example of Embodiment 1.

[0047] In this embodiment, the first width of the flat position 1 is set to 0.3 mm, the wall thickness at the flat position 1 is set to 2 mm, the draft angle of the flared mouth 2 is 9°, and the undercut at the groove position 3 is 0.06 mm. Through the coordinated cooperation of the flat position 1 with the flared mouth 2 and the groove position 3 on both sides, the probability of the opening of the block assembly structure being damaged or whitened when the mold insert pin 4 comes out of the block assembly structure is extremely low, and most products have a good appearance.

[0048] Example 6: This embodiment is the fifth preferred example of Embodiment 1.

[0049] In this embodiment, the first width of the flat position 1 is set to 0.6 mm, the width of the flared mouth 2 is 0.6 mm, the draft angle of the flared mouth 2 is 9°, and the undercut at the location of the groove position 3 is 0.08 mm. Through the coordinated cooperation of the flat position 1 with the flared mouth 2 and the groove position 3 on both sides, the probability of the opening of the block assembly structure being damaged or whitened when the mold insert pin 4 comes out of the block assembly structure is extremely low, and most products have a good appearance.

[0050] Example 7: This embodiment is the sixth preferred example of Embodiment 1.

[0051] In this embodiment, the first width of the flat position 1 is set to 0.5 mm, the wall thickness at the flat position 1 is set to 1.5 mm, the width of the flared opening 2 is 0.3 mm, the draft angle of the flared opening 2 is 10°, and the undercut at the location of the groove position 3 is 0.05 mm. Through the coordinated cooperation of the flat position 1 with the flared openings 2 and groove positions 3 on both sides, when the mold insert 4 is removed from the building block assembly structure, no damage or whitening is found on the surface of the product's opening. Figure 11 As shown in the left-hand image.

[0052] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0053] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A building block structure, characterized by comprising: The horn mouth (2), the flat position (1), and the groove position (3) are arranged in sequence. The flat position (1) extends along the axial direction of the building block assembly structure to form a first width. The first width is 0.3-0.6mm.

2. A method of demolding a building block structure, characterized by The first width of the flat position (1) arranged on the building block assembly structure is set to 0.3-0.6mm, and the first width is formed by the flat position (1) extending along the axial direction of the building block assembly structure. The front end and the rear end of the flat position (1) are respectively provided with the horn mouth (2) and the groove position (3).

3. The building structure according to claim 1 or the building structure demolding method according to claim 2, characterized by, Further comprising at least one of the following features: The undercut amount at the groove position (3) is 0.05-0.08mm. The horn mouth (2) extends along the axial direction of the building block assembly structure to form a second width, and the second width is greater than or equal to 0.2mm. The draft angle of the horn mouth (2) is greater than 8°. The wall thickness at the flat position (1) is 1.2-2.5mm.

4. The building structure according to claim 1 or the building structure demolding method according to claim 2, characterized by, The first width is 0.4-0.5mm.

5. The building structure or building structure stripping method according to claim 3, characterized in that, The second width is 0.3-0.6mm.

6. The building structure or building structure stripping method according to claim 3, wherein Preferably, the second width is 0.4-0.5mm. The undercut amount at the groove position (3) is 0.06-0.07mm. The wall thickness at the flat position (1) is 1.3-2.4mm. Preferably, the wall thickness at the flat position (1) is 1.4-2.3mm. Preferably, the wall thickness at the flat position (1) is 1.5-2.2mm. Preferably, the wall thickness at the flat position (1) is 1.6-2.1mm. Preferably, the wall thickness at the flat position (1) is 1.7-2mm.

7. A mold pin characterized by, Preferably, the wall thickness at the flat position (1) is 1.8-1.9mm.

8. A mold characterized in that, The building block assembly structure according to any one of claims 1, 3-6.

9. A building block, characterized in that The mold pin according to claim 7.

10. A toy characterized by The building block assembly structure according to any one of claims 1, 3-6 or made by the demolding method according to any one of claims 2-6. The building block according to claim 9.

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