A mold having a fastening bolt inlay structure

Abstract

The utility model relates to a mould with fastening bolt inlay structure. Current rubber mould high frequency use fastening bolt to easily cause damage to mould. The utility model discloses upper die, middle die, lower die and mould fastening bolt, the upper die the middle die and the lower die are set gradually from top to bottom, the bottom of upper die is provided with nut placing hole, the nut placing hole is provided with round gasket subassembly, the lower die is provided with inlay subassembly corresponding with round gasket subassembly, the mould fastening bolt is sequentially penetrated round gasket subassembly, the middle die and inlay subassembly from the nut placing hole downward. The utility model direct contact of mould fastening bolt is round gasket and bolt hole inlay piece, and the influence to middle die is less, thereby avoided directly to mould cause damage, only need to replace round gasket and bolt hole inlay piece, thereby prolonged the service life of mould.

Description

Technical Field

[0001] This utility model relates to the field of mold processing technology, specifically to a mold with a fastening bolt inlay structure. Background Technology

[0002] In rubber mold structure design, due to various reasons, fastening bolts are frequently used to securely connect two molds that need to be combined. Typically, the middle and lower molds need to be connected. During the production of each product, the bolts are tightened tightly; after each product is produced, the bolts are loosened and removed to take out the product. If this product is produced several times a day, the bolts need to be repeatedly tightened and loosened several times. Figure 2 As shown, after the fastening bolts are tightened, the bottom plane of the nut is close to the upper surface of the intermediate mold. Frequent tightening over a long period can cause pits on the upper surface of the intermediate mold, with varying depths. This further increases the risk of damaging the threads when tightening the bolts. Simultaneously, high-frequency use of the fastening bolts often leads to stripped threads in the bolt holes, requiring re-tapping for repair and reuse. In severe cases, two irreparable situations may occur: first, damage to the bolt holes may be caused by improper operation by the operator; second, the bolt holes may rust when the bolts are reused due to lack of lubrication during storage. When the damage is irreparable, the bolt holes can be enlarged and re-machined at the original location. However, this will result in bolts of varying sizes within the same mold, causing problems for subsequent production operations. In more severe cases, it may require remachining the mold and re-drilling the holes, increasing mold processing costs.

[0003] Therefore, there is an urgent need for a type of mold that is less likely to be damaged by fastening bolts when used frequently. Summary of the Invention

[0004] The purpose of this invention is to provide a mold with a fastening bolt inlay structure, so as to at least solve the problem that the high frequency of use of fastening bolts in current rubber molds can easily damage the mold.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A mold with a fastening bolt inlay structure includes an upper mold, a middle mold, a lower mold and mold fastening bolts. The upper mold, the middle mold and the lower mold are arranged sequentially from top to bottom. The bottom of the upper mold has a nut placement hole and a circular washer assembly is arranged in the nut placement hole. The lower mold has an inlay assembly corresponding to the circular washer assembly. The mold fastening bolt passes through the circular washer assembly, the middle mold, and the inlay assembly sequentially from the nut placement hole downwards.

[0006] Furthermore, the circular gasket assembly includes a circular gasket and a plurality of circular gasket fastening bolts. The circular gasket is disposed on the upper surface of the intermediate mold, and the circular gasket fastening bolts penetrate from the upper surface of the circular gasket into the interior of the intermediate mold.

[0007] Furthermore, a gasket bolt hole is provided through the center of the circular gasket.

[0008] Furthermore, the circular washer fastening bolts are evenly distributed around the outer periphery of the washer bolt holes. Furthermore, the inlay assembly includes bolt hole inserts and multiple insert fastening bolts; the bolt hole inserts are disposed within the lower mold, and the insert fastening bolts pass through the bolt hole inserts and the lower mold sequentially from bottom to top.

[0009] Furthermore, the bolt hole insert has a through bolt hole in the middle.

[0010] Furthermore, the fastening bolts of the insert are evenly distributed around the outer periphery of the bolt holes of the insert.

[0011] Furthermore, the vertical cross-section of the bolt hole insert is inverted T-shaped.

[0012] Furthermore, the intermediate mold has through-holes for intermediate mold bolts.

[0013] Furthermore, the gasket bolt holes, the intermediate mold bolt holes, and the insert bolt holes are respectively provided to form through bolt holes, and the mold fastening bolts are provided in the through bolt holes.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides a mold with a fastening bolt inlay structure. The nut placement hole is set at the bottom of the upper mold, reducing damage to the middle mold. A circular washer is set in the nut placement hole, and a bolt hole inlay corresponding to the circular washer is set in the lower mold. The mold fastening bolt passes through the circular washer, the middle mold, and the bolt hole inlay sequentially from top to bottom. The mold fastening bolt directly contacts the circular washer and the bolt hole inlay, and has little impact on the middle mold, thus avoiding direct damage to the mold. Only the circular washer and the bolt hole inlay need to be replaced, thereby extending the service life of the mold.

[0015] 2. The circular gasket and bolt hole insert of this utility model are made of a better material than the mold material, which extends the service life of the gasket bolt hole and insert bolt hole, thereby reducing the replacement frequency of the circular gasket and bolt hole insert. In addition, this utility model does not require a lot of time to repair and reprocess the mold. After quickly replacing the circular gasket and bolt hole insert on the production site, it can be put into production, which greatly improves production efficiency and product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained from these drawings without creative effort.

[0017] Figure 1 This is a vertical sectional view of the present invention; Figure 2 This is a schematic diagram of the prior art in the background art of this utility model; The diagram is labeled as follows: 1-Upper mold, 2-Middle mold, 3-Lower mold, 4-Circular gasket, 5-Circular gasket fastening bolt, 6-Mold fastening bolt, 7-Bolt hole insert, 8-Insert fastening bolt. Detailed Implementation

[0018] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. The drawings illustrate preferred embodiments of this utility model. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the disclosure of this utility model.

[0019] In the description of this utility model, it should be understood that the terms "center", "upper", "lower", "front", "rear", "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 utility model 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 utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0021] Example: like Figure 1As shown, this embodiment provides a mold with a fastening bolt inlay structure, including an upper mold 1, a middle mold 2, a lower mold 3 and mold fastening bolts 6, with the upper mold 1, middle mold 2 and lower mold 3 arranged sequentially from top to bottom.

[0022] To ensure the strength and quality of the middle mold 2, a nut placement hole is provided at the bottom of the upper mold 1, and a circular washer assembly is provided in the nut placement hole. An inlay assembly corresponding to the circular washer assembly is provided in the lower mold 3. The mold fastening bolt 6 passes through the circular washer assembly, the middle mold 2 and the inlay assembly sequentially from the nut placement hole downwards.

[0023] Specifically, the circular gasket assembly includes a circular gasket 4 and three circular gasket fastening bolts 5. The circular gasket 4 is tightly attached to the upper surface of the intermediate mold 2, and a gasket bolt hole is opened through the center of the circular gasket 4.

[0024] Among them, the circular washer 4 is a metal washer with a thickness of 3 to 5 mm. The outer diameter of the circular washer 4 is 20 to 25 mm larger than the outer diameter of the nut of the mold fastening bolt 6. In other embodiments, the thickness of the circular washer 4 can be adjusted according to the size of the mold fastening bolt.

[0025] Three circular washer fastening bolts 5 are evenly distributed around the outer perimeter of the washer bolt holes. The circular washer 4 and the top of the middle mold 2 are respectively provided with fastening screw holes. The circular washer fastening bolts 5 pass through the fastening screw holes from the upper surface of the circular washer 4 into the middle mold 2, thereby fixing the circular washer 4.

[0026] Among them, the size of the circular washer fastening bolt 5 is two size grades smaller than that of the mold fastening bolt 6. The circular washer fastening bolt 5 does not need to be frequently installed and removed during the use of the mold. It only needs to be disassembled and installed when the circular washer 4 is damaged and needs to be replaced. If the washer bolt hole has problems after long-term use, only the circular washer 4 needs to be replaced.

[0027] Specifically, the middle mold 2 has a through hole for the middle mold bolts, which are the through holes for the mold fastening bolts 6.

[0028] In this embodiment, the lower mold 3 has an installation hole, and the inlay component is disposed in the installation hole and fits into the installation hole. The inlay component includes a bolt hole inlay 7 and three inlay fastening bolts 8. The bolt hole inlay 7 is disposed in the lower mold 3, and the bolt hole inlay 7 has an inlay bolt hole through the middle.

[0029] Among them, the outer diameter of the bolt hole insert 7 is 20-25mm larger than the diameter of the bolt hole of the insert, the height of the bolt hole insert 7 is less than the height of the lower mold 3, the upper surface of the bolt hole insert 7 is 0.1mm lower than the upper surface of the lower mold 3, and the lower surface of the bolt hole insert 7 is 0.1mm lower than the lower surface of the lower mold 3.

[0030] Specifically, three insert fastening bolts 8 are evenly distributed around the bolt holes of the inserts. The bolt hole inserts 7 and the lower mold 3 are respectively provided with fastening bolt holes. The insert fastening bolts 8 pass through the bolt hole inserts 7 and the lower mold 3 from bottom to top, thereby fixing the bolt hole inserts 7.

[0031] Among them, the size of the insert fastening bolt 8 is two size grades smaller than that of the mold fastening bolt 6. The insert fastening bolt 8 does not need to be frequently installed and removed during the use of the mold. It only needs to be disassembled and installed when the bolt hole insert 7 is damaged and needs to be replaced.

[0032] In this embodiment, the bolt hole insert 7 is a stepped structure formed by two cylinders, and the vertical cross section of the bolt hole insert 7 is inverted T-shaped. The bolt hole insert 7 is installed into the mold from the bottom of the lower mold 3. The stepped structure can prevent the bolt hole insert 7 from being pulled out during use, and can also play a self-tightening role for the bolt hole insert 7. If the bolt hole of the insert has a problem after long-term use, it is only necessary to replace the bolt hole insert 7.

[0033] Specifically, the gasket bolt holes, the middle mold bolt holes, and the insert bolt holes are respectively set with corresponding diameters and have the same diameter to form through bolt holes. The mold fastening bolt 6 passes through the through bolt holes from top to bottom, thereby fixing the middle mold 2 and the lower mold 3. When disassembling and installing the mold fastening bolt 6, the circular gasket 4 and the bolt hole insert 7 are in direct contact, and the impact on the middle mold 2 is small, thus avoiding direct damage to the mold. Only the circular gasket 4 and the bolt hole insert 7 need to be replaced, which extends the service life of the mold.

[0034] In this embodiment, the circular washer 4 and the bolt hole insert 7 are made of the same material. The material has higher hardness and quality than the mold, so that the circular washer 4 and the bolt hole insert 7 are not easily damaged during the repeated loading and unloading of the mold fastening bolt 6.

[0035] The above-described specific examples are for illustrative purposes only and are not intended to limit the scope of this invention. Those skilled in the art to which this invention pertains can make various simple deductions, modifications, or substitutions based on the concept of this invention.

Claims

1. A mold with a fastening bolt inlay structure, comprising an upper mold (1), a middle mold (2), a lower mold (3), and mold fastening bolts (6), wherein the upper mold (1), the middle mold (2), and the lower mold (3) are arranged sequentially from top to bottom, characterized in that: The bottom of the upper mold (1) is provided with a nut placement hole, and a circular washer assembly is provided in the nut placement hole. The lower mold (3) is provided with an inlay assembly corresponding to the circular washer assembly. The mold fastening bolt (6) passes through the circular gasket assembly, the middle mold (2) and the inlay assembly sequentially from the nut placement hole downwards.

2. The mold with a fastening bolt inlay structure according to claim 1, characterized in that: The circular gasket assembly includes a circular gasket (4) and a plurality of circular gasket fastening bolts (5). The circular gasket (4) is disposed on the upper surface of the intermediate mold (2), and the circular gasket fastening bolts (5) penetrate from the upper surface of the circular gasket (4) into the interior of the intermediate mold (2).

3. A mold with a fastening bolt inlay structure according to claim 2, characterized in that: The circular gasket (4) has a gasket bolt hole through the middle.

4. A mold with a fastening bolt inlay structure according to claim 3, characterized in that: The circular washer fastening bolts (5) are evenly distributed around the outer periphery of the washer bolt holes.

5. A mold with a fastening bolt inlay structure according to claim 3, characterized in that: The inlay assembly includes a bolt hole inlay (7) and a plurality of inlay fastening bolts (8). The bolt hole inlay (7) is disposed in the lower mold (3), and the inlay fastening bolts (8) pass through the bolt hole inlay (7) and the lower mold (3) from bottom to top.

6. A mold with a fastening bolt inlay structure according to claim 5, characterized in that: The bolt hole insert (7) has a through bolt hole in the middle.

7. A mold with a fastening bolt inlay structure according to claim 6, characterized in that: The insert fastening bolts (8) are evenly distributed around the bolt holes of the insert.

8. A mold with a fastening bolt inlay structure according to claim 5, characterized in that: The vertical cross-section of the bolt hole insert (7) is inverted T-shaped.

9. A mold with a fastening bolt inlay structure according to claim 6, characterized in that: The middle mold (2) has a through-hole for bolts.

10. A mold with a fastening bolt inlay structure according to claim 9, characterized in that: The gasket bolt hole, the middle mold bolt hole, and the insert bolt hole are respectively provided and form a through bolt hole. The mold fastening bolt (6) is provided in the through bolt hole.

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