Self-lubricating sealing element mold

Abstract

The utility model discloses a self-lubricating sealing element mold, which belongs to the technical field of silica gel molds and comprises a lower mold component, the upper end of the lower mold component is connected with an upper mold component, and an ejection jig is arranged on one side of the lower mold component; the lower die assembly comprises a middle plate component and a lower plate component, the upper end of the middle plate component is connected with the lower end of the upper die assembly, and the lower end of the middle plate component is connected with the upper end of the lower plate component. Through the mode, the through hole in the lower end of the middle plate is matched with the inclination of the convex block at the upper end of the lower plate, and the first spring is arranged at the upper end of the middle plate, so that the middle plate and the lower plate are subjected to die assembly before material pressing is completed, and die deviation is avoided; the lower end of the upper die core and the upper end of the lower die core are chamfered, so that sharp corners are avoided; the upper mold core is fixed on the upper plate, and the lower mold core is fixed on the lower plate, so that the space during forced demolding is large, and a product can be prevented from being broken by extrusion; the upper mold core and the lower mold core are in inclined close fit, so that plug core burrs can be avoided.

Description

[Technical field]

[0001] The utility model relates to the technical field of silicone molds, in particular to a self-lubricating sealing component mold. [Background Technology]

[0002] Silica gel is a porous substance with different particle sizes formed by proper dehydration of silicic acid gel. Silica gel products have the advantages of high temperature resistance, easy cleaning and long service life. Oil-spitting silica gel is a silicone product with wavy horizontal grooves on the outside and two wavy through holes in the middle.

[0003] The current production mold includes an upper template, a middle template, a lower template, a mold core and a guide column. The bottom of the upper template is in contact with the upper end of the middle template. Through holes for the guide columns to pass through are opened on both sides of the upper template. A through hole identical to the product shape is opened in the middle part of the middle template. Guide columns are fixedly installed on the upper ends of both sides of the middle template. The guide columns are slidably connected to the through holes of the upper template. The upper end of the lower template is in contact with the lower end of the middle template. The upper end of the lower template is fixedly connected to two mold cores, and the upper end of the mold core is in contact with the upper template.

[0004] However, when the mold is in use, the middle template and the lower template are positioned only by guide pins, which creates a risk of offset during pouring. The offset will affect the precision of the product and also cause a large amount of burrs on the product. When the product is taken out, the product is easily scratched by the sharp corners on the upper end of the mold core and broken. Manual mold removal is inefficient and operators are also prone to hitting the outer wall of the material pool and getting burned.

[0005] Based on this, the utility model designs a self-lubricating seal mold to solve the above problems. [Contents of the utility model]

[0006] In view of the above-mentioned shortcomings of the prior art, the utility model provides a self-lubricating sealing component mold.

[0007] In order to achieve the above purpose, a self-lubricating seal mold is designed, including a mold lower component,

[0008] The upper end of the mold lower component is connected to the mold upper component, and an ejection fixture is provided on one side of the mold lower component;

[0009] The mold lower component comprises a middle plate component and a lower plate component, the upper end of the middle plate component is connected to the lower end of the mold upper component, and the lower end of the middle plate component is connected to the upper end of the lower plate component.

[0010] Furthermore, the middle plate component includes a middle plate and a first spring, two first springs are provided, and the two first springs are respectively located at the upper ends of the left and right sides of the middle plate, the upper end of the first spring is connected to the upper component of the mold, the lower end of the first spring is fixedly connected to the upper end of the middle plate, the upper end of the middle plate is connected to the upper component of the mold, and the lower end of the middle plate is connected to the lower plate component. A through hole is opened in the middle of the middle plate, and the upper and lower side walls of the through hole are inclined, the middle part of the through hole is the same as the shape of the product, and positioning holes are opened on both sides of the middle plate.

[0011] Furthermore, the lower plate component includes a lower plate and a lower mold core, a protrusion is provided at the middle upper end of the lower plate, the protrusion is adapted to the lower end of the through hole of the middle plate, a through groove is opened at the upper end of the protrusion, a through hole adapted to the lower mold core is opened in the middle of the lower plate, the lower mold core is located at the upper end of the through hole, the lower mold core and the lower plate are fixedly connected by bolts, the lower mold core plug is tightly fitted at an angle, and the upper end of the lower mold core is extended straight up and chamfered at a C angle.

[0012] Furthermore, the upper mold component includes an upper plate and an upper mold core. The two sides of the lower end of the upper plate are in contact with the upper end of the first spring, the lower end of the upper plate is slidably connected to the upper end of the middle plate, the lower end of the upper plate is provided with a through groove adapted to the lower mold core, the middle part of the upper plate is provided with a through hole adapted to the upper mold core, the upper mold core is located at the lower end of the through hole, the upper mold core is fixedly connected to the upper plate by bolts, the upper mold core plug core is tightly fitted at an angle, and the lower end of the upper mold core is adapted to the through groove opened at the upper end of the lower plate.

[0013] Furthermore, a second protrusion is provided at the lower middle end of the upper plate, and the second protrusion is adapted to the upper end of the through hole of the middle plate, and the lower end of the upper mold core is extended straight up and chamfered at a C angle.

[0014] Furthermore, the ejection fixture includes a top plate and a buffer positioning component, two buffer positioning components are provided, and the lower ends of the two buffer positioning components are connected to the upper end of the top plate.

[0015] Furthermore, a protrusion three is arranged at the middle upper end of the top plate, through grooves are opened at the upper ends of both sides of the top plate, and the top plate is made of bakelite.

[0016] Furthermore, the buffer positioning component includes a positioning column, a buffer plate and a second spring. The lower end of the positioning column is fixedly installed in the through groove at the upper end of the top plate. The buffer plate is slidably connected to the outside of the positioning column. The buffer plate is adapted to the through groove at the upper end of the top plate. The lower end of the buffer plate is fixedly connected to the upper end of the second spring. The lower end of the second spring is fixedly connected to the bottom of the through groove at the upper end of the top plate.

[0017] Compared with the prior art, the utility model has the following advantages:

[0018] (1) The utility model cooperates the inclination of the through hole at the lower end of the middle plate with the convex block at the upper end of the lower plate, and sets the first spring at the upper end of the middle plate, so that the middle plate is molded with the lower plate before the pressing is completed, thereby avoiding mold deviation;

[0019] (2) The utility model avoids the generation of sharp corners by setting the chamfers at the lower end of the upper mold core and the upper end of the lower mold core;

[0020] (3) The utility model fixes the upper mold core to the upper plate and the lower mold core to the lower plate, so that there is a large space for forced release, which can avoid squeezing the product;

[0021] (4) The upper mold core and the lower mold core of the utility model are tightly matched at an angle, which can avoid burrs on the plug core. [Drawings]

[0022] Figure 1 The three-dimensional self-lubricating seal mold of the utility model Figure 1 ;

[0023] Figure 2 It is a front view of the self-lubricating seal mold of the utility model;

[0024] Figure 3 It is a right side view of the self-lubricating seal mold of the utility model;

[0025] Figure 4 The three-dimensional self-lubricating seal mold of the utility model Figure 2 ;

[0026] Figure 5 For along Figure 3 AA direction cross-sectional view;

[0027] Figure 6 for Figure 5 The enlarged view of point B in the middle;

[0028] Figure 7 This is an exploded view of the self-lubricating seal mold of the utility model;

[0029] In the figure: 1, mold lower component 11, middle plate part 111, middle plate 112, first spring 113, positioning hole 12, lower plate part 121, lower plate 122, lower mold core 2, mold upper component 21, upper plate 22, upper mold core 3, ejection fixture 31, top plate 32, buffer positioning component 321, positioning column 322, buffer plate 323, second spring. [Specific implementation method]

[0030] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments:

[0031] Embodiment 1

[0032] In some embodiments, please refer to the attached instructions. Figure 1-7 , a self-lubricating seal mold, comprising a mold lower component 1,

[0033] The upper end of the mold lower component 1 is connected to the mold upper component 2, and an ejection fixture 3 is provided on one side of the mold lower component 1;

[0034] The mold lower component 1 includes a middle plate component 11 and a lower plate component 12 . The upper end of the middle plate component 11 is connected to the lower end of the mold upper component 2 , and the lower end of the middle plate component 11 is connected to the upper end of the lower plate component 12 .

[0035] The middle plate component 11 includes a middle plate 111 and a first spring 112. Two first springs 112 are provided. The two first springs 112 are respectively located at the upper ends of the left and right sides of the middle plate 111. The upper end of the first spring 112 is connected to the mold upper component 2. The lower end of the first spring 112 is fixedly connected to the upper end of the middle plate 111. The upper end of the middle plate 111 is connected to the mold upper component 2. The lower end of the middle plate 111 is connected to the lower plate component 12. A through hole is opened in the middle of the middle plate 111. The upper and lower end side walls of the through hole are inclined. The middle part of the through hole is the same shape as the product. Positioning holes 113 are opened on both sides of the middle plate 111.

[0036] The lower plate component 12 includes a lower plate 121 and a lower mold core 122. A protrusion is provided at the middle upper end of the lower plate 121, which is adapted to the lower end of the through hole of the middle plate 111. A through groove is provided at the upper end of the protrusion. A through hole adapted to the lower mold core 122 is provided in the middle of the lower plate 121. The lower mold core 122 is located at the upper end of the through hole. The lower mold core 122 is fixedly connected to the lower plate 121 by bolts. The lower mold core 122 is tightly fitted at an angle, and the upper end of the lower mold core 122 is extended straight up and chamfered at a C angle.

[0037] The mold upper component 2 includes an upper plate 21 and an upper mold core 22. The two sides of the lower end of the upper plate 21 are in contact with the upper end of the first spring 112, the lower end of the upper plate 21 is slidably connected to the upper end of the middle plate 111, the lower end of the upper plate 21 is provided with a through groove adapted to the lower mold core 122, the middle part of the upper plate 21 is provided with a through hole adapted to the upper mold core 22, the upper mold core 22 is located at the lower end of the through hole, the upper mold core 22 is fixedly connected to the upper plate 21 by bolts, the upper mold core 22 is tightly fitted with an inclined shape, and the lower end of the upper mold core 22 is adapted to the through groove opened at the upper end of the lower plate 121.

[0038] The middle lower end of the upper plate 21 is provided with a second protrusion, which is adapted to the upper end of the through hole of the middle plate 111. The lower end of the upper mold core 22 is extended straight up and chamfered to a C angle.

[0039] The ejection fixture 3 includes a top plate 31 and a buffer positioning component 32 . Two buffer positioning components 32 are provided, and the lower ends of the two buffer positioning components 32 are connected to the upper end of the top plate 31 .

[0040] A convex block 3 is disposed at the middle upper end of the top plate 31 , and through grooves are provided at the upper ends of both sides of the top plate 31 . The top plate 31 is made of bakelite.

[0041] The buffer positioning component 32 includes a positioning column 321, a buffer plate 322 and a second spring 323. The lower end of the positioning column 321 is fixedly installed in the through groove at the upper end of the top plate 31. The buffer plate 322 is slidably connected to the outer side of the positioning column 321. The buffer plate 322 is adapted to the through groove at the upper end of the top plate 31. The lower end of the buffer plate 322 is fixedly connected to the upper end of the second spring 323. The lower end of the second spring 323 is fixedly connected to the bottom of the through groove at the upper end of the top plate 31.

[0042] When the self-lubricating seal mold is used normally, the upper plate 21 is pressed downward, the first spring 112 contracts, the middle plate 111 and the lower plate 121 are closely fitted, the convex block in the middle of the upper plate 21 slides and fits with the inner wall of the through hole at the upper end of the middle plate 111, the upper mold core 22 moves into the through groove at the upper end of the lower plate 121, and the lower mold core 122 moves into the through groove at the lower end of the upper plate 21, and the liquid silicone is poured into the hollow part of the middle plate 111. After the product is formed, the upper plate 2 1 moves upward. Since the product has a larger contact surface with the inner wall of the middle plate 111, the product sticks to the middle part of the middle plate 111. The middle plate 111 is moved above the top plate 31, and the middle plate 111 is pressed downward. The positioning column 321 passes through the positioning hole 113. The lower end of the middle plate 111 contacts the upper end of the buffer plate 322. The middle plate 111 is pressed downward continuously. The buffer plate 322 squeezes the second spring 323. The middle plate 111 drives the product to be ejected by the convex block at the upper end of the top plate 31, thereby demoulding.

[0043] The utility model can completely prevent product breakage: the main reason for product breakage is the sharp corners at the top of the mold core and the right angles at the bottom. Since silicone itself is relatively brittle, the mold design needs to avoid sharp corners; at the same time, the utility model reduces the risk of product mold deviation: because the product uses a large amount of rubber, the three-layer board design only uses guide columns for positioning, which will cause the risk of displacement. The back of the middle plate is strengthened with an inclination to cooperate with the lower plate, and the spring is used to close the middle and lower plates in advance, which can avoid the risk of middle plate deviation; the middle plate has no deviation, and the outer diameter burrs can be easily removed; in addition, the utility model can improve the mold removal time efficiency: because the product uses a large amount of rubber, the mold adopts a casting structure, and there is a material pool at the upper end of the middle plate. The material pool will have a groove shape, which increases the difficulty of mold removal, and the operator's arm is easy to touch the outer wall of the material pool, causing scalding accidents. Therefore, a ejection jig is made of bakelite, and the product is ejected from the back of the middle plate with the jig, which not only improves the mold removal time efficiency but also avoids scalding accidents.

[0044] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in the field. The standard parts used can be purchased from the market, and special-shaped parts can be customized according to the records in the specification and drawings. The specific connection methods of each part adopt mature conventional means such as bolts, rivets, welding, etc. in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts the conventional connection method in the prior art, which will not be described in detail here.

[0045] The present invention is not limited to the above-mentioned implementation modes, and any other changes, modifications, substitutions, combinations, and simplifications made without departing from the spirit and principle of the present invention shall be considered as equivalent replacement modes and shall be included in the protection scope of the present invention.

Claims

1. A self-lubricating seal mold, comprising a mold lower component (1), characterized in that: The upper end of the mold lower component (1) is connected to the mold upper component (2), and an ejection fixture (3) is provided on one side of the mold lower component (1); The mold lower component (1) comprises a middle plate component (11) and a lower plate component (12), the upper end of the middle plate component (11) is connected to the lower end of the mold upper component (2), and the lower end of the middle plate component (11) is connected to the upper end of the lower plate component (12).

2. The self-lubricating seal mold according to claim 1, characterized in that: The middle plate component (11) comprises a middle plate (111), a first spring (112) and a positioning hole (113). Two first springs (112) are provided, and the two first springs (112) are respectively located at the upper ends of the left and right sides of the middle plate (111). The upper end of the first spring (112) is connected to the mold upper component (2), and the lower end of the first spring (112) is fixedly connected to the upper end of the middle plate (111). The upper end of the middle plate (111) is connected to the mold upper component (2), and the lower end of the middle plate (111) is connected to the lower plate component (12). A through hole is opened in the middle of the middle plate (111), and the upper and lower end side walls of the through hole are inclined. The middle part of the through hole is the same as the shape of the product. Positioning holes (113) are opened on both sides of the middle plate (111).

3. The self-lubricating seal mold according to claim 2, characterized in that: The lower plate component (12) comprises a lower plate (121) and a lower mold core (122). A protrusion is arranged at the middle upper end of the lower plate (121), and the protrusion is adapted to the lower end of the through hole of the middle plate (111). A through groove is arranged at the upper end of the protrusion. A through hole adapted to the lower mold core (122) is arranged in the middle of the lower plate (121). The lower mold core (122) is located at the upper end of the through hole. The lower mold core (122) is fixedly connected to the lower plate (121) by bolts. The lower mold core (122) is tightly fitted with an inclined shape. The upper end of the lower mold core (122) is extended straightly and has a C-angle chamfered.

4. The self-lubricating seal mold according to claim 3, characterized in that: The mold upper component (2) includes an upper plate (21) and an upper mold core (22). The lower ends of the upper plate (21) are in contact with the upper ends of the first springs (112). The lower ends of the upper plate (21) are slidably connected to the upper ends of the middle plates (111). The lower ends of the upper plates (21) are provided with a through groove adapted to the lower mold core (122). The middle portion of the upper plate (21) is provided with a through hole adapted to the upper mold core (22). The upper mold core (22) is located at the lower end of the through hole. The upper mold core (22) is fixedly connected to the upper plate (21) by bolts. The upper mold core (22) is tightly fitted with an inclined core. The lower end of the upper mold core (22) is adapted to the through groove provided at the upper end of the lower plate (121).

5. The self-lubricating seal mold according to claim 4, characterized in that: A second convex block is provided at the lower middle end of the upper plate (21), and the second convex block is adapted to the upper end of the through hole of the middle plate (111). The lower end of the upper mold core (22) is extended straight up and chamfered to a C angle.

6. The self-lubricating seal mold according to claim 5, characterized in that: The ejection jig (3) comprises a top plate (31) and a buffer positioning component (32), two buffer positioning components (32) are provided, and the lower ends of the two buffer positioning components (32) are connected to the upper end of the top plate (31).

7. The self-lubricating seal mold according to claim 6, characterized in that: A protrusion three is provided at the middle upper end of the top plate (31), and through grooves are provided at the upper ends of both sides of the top plate (31).

8. The self-lubricating seal mold according to claim 7, characterized in that: The buffer positioning component (32) comprises a positioning column (321), a buffer plate (322) and a second spring (323); the lower end of the positioning column (321) is fixedly installed in a through slot at the upper end of the top plate (31); the buffer plate (322) is slidably connected to the outer side of the positioning column (321); the buffer plate (322) is adapted to the through slot at the upper end of the top plate (31); the lower end of the buffer plate (322) is fixedly connected to the upper end of the second spring (323); and the lower end of the second spring (323) is fixedly connected to the bottom of the through slot at the upper end of the top plate (31).

Images