Universal simple mold for shock insulation rubber support

Abstract

A universal simple mold for a shock insulation rubber support comprises an upper mold cover plate, a two-section type middle mold, a half block fastening device and a lower mold cover plate, the two-section type middle mold is of an involution circular ring type structure and comprises an upper-section middle mold body and a lower-section middle mold body, and the upper-section middle mold body and the lower-section middle mold body are symmetrical in structure to form a circular ring structure; the upper middle mold and the lower middle mold are both of a semicircular ring structure, the two ends of the upper middle mold and the two ends of the lower middle mold abut against each other and then are fixed through a half block fastening device, an upper end opening of the two-section middle mold is sealed through an upper mold cover plate, and a lower end opening of the two-section middle mold is sealed through a lower mold cover plate; therefore, the die is simple in structure and convenient to operate, can be compatible with production of a first-type support and a second-type support, greatly reduces die investment of a manufacturing plant, facilitates field production management, adopts a two-section structure, greatly reduces die machining difficulty, improves die strength, and guarantees operation efficiency and product quality.

Description

Technical Field

[0001] The utility model relates to the technical field of seismic isolation bearing moulds, in particular to a universal simple mould which can be applied to type one / type two seismic isolation rubber bearings. Background Art

[0002] The existing seismic isolation bearing molds usually design the type one bearing and the type two bearing separately, resulting in that the type one bearing and the type two bearing molds cannot be used interchangeably and have no mutual compatibility.

[0003] Among them, a type of mold in the prior art: CN100410045C, a mold for manufacturing rubber seismic isolation bearings for buildings and bridges, is composed of an annular or square outer mold, a cylindrical radial positioning steel rod inner mold and upper and lower covers. At least three axial holes or grooves are opened inside or on the surface of the outer circular surface of the inner mold, or inside or on the surface of the inner circular surface of the outer mold, and a layered positioning mold strip is installed, which has horizontally distributed convex nails from top to bottom with a number of rows equal to the number of rubber layers.

[0004] Prior art type 2 mold: CN112318779A, a rubber seismic isolation bearing mold, including a middle mold, the middle mold including a first mold body and a second mold body, the first mold body and the second mold body are matched and docked to form a mold cavity, the upper step surface of the inner ring of the mold cavity is matched with a retaining ring; the bottom surface of the inner ring of the retaining ring extends downward to form a tapered portion, the outer tapered surface of the tapered portion is fitted with the inner surface of the lower step of the mold cavity, and the upper outer ring tapered surface of the retaining ring is fitted with the inner surface of the upper step of the mold cavity; a core is set at the rotation center of the middle mold, the upper end of the core is connected to the upper mold plate, and the lower end is connected to the conical bottom plate, and the conical bottom plate is matched in the conical hole of the lower mold plate.

[0005] CN203650752U, a shock-absorbing rubber bearing combination mold, includes a sliding template slidably arranged in a vulcanizer, a mold cavity assembly is arranged on the sliding template, and the mold cavity assembly consists of a symmetrically arranged left mold cavity and a right mold cavity, the left mold cavity and the right mold cavity are driven by a driving device and are slidably arranged on the sliding template, and locking blocks for locking the mold cavity assembly are arranged on the front and rear sides of the mold cavity assembly on the sliding template, and the locking blocks are driven by a locking driving device and are slidably arranged on the sliding template.

[0006] The above prior art still has the following defects:

[0007] 1. The current mold structure design on the market is unreasonable, which can easily cause mold deformation and is difficult to process.

[0008] 2. At present, the molds on the market usually adopt the overall middle mold setting, which makes it difficult to open the mold and requires a press to demould, which easily causes the product and mold to be scrapped and production efficiency to be reduced.

[0009] 3. Currently, Type 1 and Type 2 bearings on the market need to be produced using separate molds.

[0010] 4. The existing production mold for the Type II seismic isolation bearing is too complicated, and the bearing pre-assembly and mold closing process is relatively difficult.

[0011] 5. The existing mold overflow groove is not set up reasonably, and has poor adaptability to different soft and hard plastics, resulting in a low product qualification rate.

[0012] To this end, in view of the above-mentioned defects, the designers of the present invention have concentrated on research and design, combined with the experience and achievements of many years in related industries, and have researched and designed a universal simple mold for seismic isolation rubber bearings to overcome the above-mentioned defects. Utility Model Content

[0013] The purpose of the utility model is to provide a universal simple mold for seismic isolation rubber bearings, which has a simple structure and is easy to operate. It is compatible with the production of type one bearings and type two bearings, greatly reducing the mold investment of manufacturers and facilitating on-site production management. It adopts a two-petal structure, which greatly reduces the difficulty of mold processing, increases mold strength, and ensures operating efficiency and product quality.

[0014] To achieve the above purpose, the utility model discloses a universal simple mold for a seismic isolation rubber bearing, comprising an upper mold cover, a two-piece middle mold, a half block fastening device and a lower mold cover, and is characterized in that:

[0015] The two-petal middle mold is a matching circular ring structure, which includes an upper petal middle mold and a lower petal middle mold that are symmetrical in structure to form a circular ring structure. The upper petal middle mold and the lower petal middle mold are both semi-circular ring structures and are fixed by a half block fastening device after the two ends are close together. The upper end opening of the two-petal middle mold is closed by an upper mold cover plate, and the lower end opening is closed by a lower mold cover plate.

[0016] The mating parts on both sides of the upper middle mold and the lower middle mold extend outwards respectively and are provided with clamping blocks. After the clamping blocks on both sides are mated, they are fixed by the half block fastening device to fasten the upper middle mold and the lower middle mold to form a middle mold cavity.

[0017] Wherein: the upper mold cover plate and the lower mold cover plate have the same structure, both of which include a circular plate-shaped cover plate body, and a sink is provided in the middle of the inner side of the cover plate body.

[0018] Among them: a plurality of vertical annular glue overflow grooves extending up and down are evenly distributed on the inner walls of the upper middle mold and the lower middle mold, and a plurality of through glue overflow holes are symmetrically distributed in the middle of the upper middle mold and the lower middle mold.

[0019] Wherein: the upper and lower end surfaces of the upper-petal middle mold and the lower-petal middle mold are both provided with circumferential annular tearing grooves.

[0020] Wherein: the half block fastening device comprises a concave half block and a convex half block, both of which are L-shaped, the lower end mating surface of the concave half block is provided with a groove, and the upper end mating surface of the convex half block is provided with a protrusion inserted into the groove, so that after the protrusion is inserted into the groove, the concave half block and the convex half block can fasten and engage the two side blocks of the upper petal middle mold and the lower petal middle mold.

[0021] Wherein: the concave half block and the convex half block are provided with two corresponding bolt holes, so as to penetrate and fasten the concave half block and the convex half block through fastening bolts from one side of the concave half block and the convex half block respectively.

[0022] Wherein: the clamping block is vertically provided with a plurality of vertical bolt holes, and a plurality of longitudinal bolt holes are arranged at positions perpendicular to the vertical bolt holes.

[0023] Among them: the vertical positions of the concave half block and the convex half block corresponding to the vertical bolt holes are provided with multiple vertical waist-shaped holes, so that the vertical adjusting bolts can be screwed through the vertical bolt holes; the longitudinal positions of the concave half block and the convex half block corresponding to the longitudinal bolt holes are provided with multiple longitudinal waist-shaped holes, so that the longitudinal adjusting bolts can be screwed through the longitudinal bolt holes.

[0024] From the above content, it can be seen that the universal simple mold of the seismic isolation rubber bearing of the utility model has the following effects:

[0025] 1. The utility model adopts a two-petal structure, which greatly reduces the difficulty of mold processing. At the same time, the wall thickness can be increased and a half block fastening device is set to fix the mold to increase the strength of the mold.

[0026] 2. It effectively solves the difficulty of vulcanization mold opening of type I support and ensures operation efficiency and product quality.

[0027] 3. The image mold used is universal and can meet the production of type I and type II bearings at the same time, reducing the investment in molds and the difficulty of production management.

[0028] 4. By leaving the waist-shaped hole half block, the mold can be closed by gradually adjusting the bolt position, which effectively solves the problem of difficult mold closing and vulcanization of pre-installed uneven supports.

[0029] 5. The middle mold of this mold is respectively provided with vertical overflow glue groove, annular tear edge groove and middle overflow glue hole. It fully ensures the fluidity of the rubber during the vulcanization process of the support, avoids the occurrence of undesirable conditions such as lack of glue and air pocket inside the support, and at the same time, the setting of the annular tear edge groove can effectively reduce the occurrence of flash and rotten edges of the product.

[0030] 6. It can simultaneously meet the pre-molding vulcanization production of type I and type II seismic isolation rubber bearings for buildings, greatly improving production efficiency.

[0031] The details of the present invention can be obtained from the following description and the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The utility model shows a structural schematic diagram of a universal simple mold for a seismic isolation rubber bearing.

[0033] Figure 2 The schematic diagram of the structure of the utility model after removing the upper and lower mold cover plates is shown.

[0034] Figure 3 The schematic diagram of the structure of the upper and lower mold cover plates in the utility model is shown.

[0035] Figure 4 The schematic diagram of the structure of the two-piece middle mold in the utility model is shown.

[0036] Figure 5 The schematic diagram of the structure of the Hough block fastening device in the utility model is shown.

[0037] Reference numerals:

[0038] 10. Universal simple mold for seismic isolation rubber bearing; 20. Two-petal middle mold; 30. Half block fastening device; 40. Upper mold cover; 50. Lower mold cover; 21. Upper petal middle mold; 22. Lower petal middle mold; 23. Vertical annular glue overflow groove; 24. Glue overflow hole; 25. Annular tear edge groove; 26. Connecting channel; 27. Block; 28. Vertical bolt hole; 29. ​​Longitudinal bolt hole; 31. Concave half block; 32. Convex half block; 33. Bolt hole; 34. Fastening bolt; 35. Vertical waist hole; 36. Longitudinal waist hole; 41. Cover body; 42. Sink; 43. Through hole. DETAILED DESCRIPTION

[0039] See also Figures 1 to 5 , showing the universal simple mold for the seismic isolation rubber bearing of the utility model, which can be conveniently used for the vulcanization of type I / type II seismic isolation rubber bearings of buildings.

[0040] like Figure 1 and Figure 2 As shown, the universal simple mold 10 for seismic isolation rubber bearings includes an upper mold cover plate 40, a two-piece middle mold 20, a half block fastening device 30 and a lower mold cover plate 50. Figure 2 and Figure 4The two-petal middle mold 20 is a matching circular ring structure, which includes an upper petal middle mold 21 and a lower petal middle mold 22 that are symmetrical in structure to form a circular ring structure. The upper petal middle mold 21 and the lower petal middle mold 22 are both semi-circular ring structures and are fixed by a half block fastening device 30 after the two ends are close together. The upper end opening of the two-petal middle mold 20 is closed by an upper mold cover plate 40, and the lower end opening is closed by a lower mold cover plate 50.

[0041] See also Figure 3 The upper mold cover plate 40 and the lower mold cover plate 50 have the same structure and both include a circular plate-shaped cover plate body 41. A sink 42 is provided in the middle of the inner side of the cover plate body 41, so that the sink 42 can invade the cavity of the middle mold during mold closing, and is used to prevent the product contact surface from being rotten or exploded when producing a type of support. A through hole 43 is provided in the middle of the cover plate body 41.

[0042] See also Figure 4 The inner walls of the upper middle mold 21 and the lower middle mold 22 are evenly spaced with a plurality of vertical annular glue overflow grooves 23 extending up and down, and the middle parts of the upper middle mold 21 and the lower middle mold 22 are evenly spaced with a plurality of through glue overflow holes 24 symmetrically spaced.

[0043] The upper and lower end surfaces of the upper and lower middle molds 21 and 22 are both provided with an annular tearing groove 25 , and the annular tearing groove 25 is connected to the vertical annular glue overflow groove 23 through a plurality of connecting channels 26 .

[0044] Among them, the mating parts on both sides of the upper-petal middle mold 21 and the lower-petal middle mold 22 are respectively extended outward to provide corresponding clamping blocks 27. After the clamping blocks 27 on both sides are mated, they are fixed by the half block fastening device 30 to fasten the upper-petal middle mold 21 and the lower-petal middle mold 22 to form a middle mold cavity.

[0045] The block 27 is provided with a plurality of vertical bolt holes 28 in the vertical direction, and a plurality of longitudinal bolt holes 29 are provided at positions perpendicular to the vertical bolt holes 28. Figure 5 The half block fastening device 30 includes a concave half block 31 and a convex half block 32, both of which are L-shaped. The lower end mating surface of the concave half block 31 is provided with a groove, and the upper end mating surface of the convex half block 32 is provided with a protrusion inserted into the groove, so that after the protrusion is inserted into the groove, the concave half block 31 and the convex half block 32 can fasten and engage the two side blocks of the upper petal middle mold 21 and the lower petal middle mold 22.

[0046] The concave half block 31 and the convex half block 32 are provided with two corresponding bolt holes 33, so that the concave half block 31 and the convex half block 32 can be fastened by fastening bolts 34 from one side of the concave half block 31 and the convex half block 32 respectively. The concave half block 31 and the convex half block 32 are provided with a plurality of vertical waist holes 35 at the positions corresponding to the vertical bolt holes 28 in the vertical direction, so that the vertical adjusting bolts can be screwed into the vertical bolt holes 28; the concave half block 31 and the convex half block 32 are provided with a plurality of longitudinal waist holes 36 at the positions corresponding to the longitudinal bolt holes 29 in the longitudinal direction, so that the longitudinal adjusting bolts can be screwed into the longitudinal bolt holes 29.

[0047] Thus, by the spiral fixation of the fastening bolts 34 and the bolt holes 33, the externally arranged half block fastening device is docked and locked to the locking of the two-piece middle mold 20, the concave and convex two half blocks are matched, and waist-shaped holes and bolt holes are matched on the matching surfaces. The middle mold position is adjusted and leveled by the vertical adjusting bolts and the longitudinal adjusting bolts, which is used to adjust the matching displacement and facilitate the pre-molding and clamping of irregular rubber supports.

[0048] In the specific operation example:

[0049] Before the support is molded, the mold should be heated first. When the mold reaches a certain temperature, it can be assembled or pre-assembled for mold production.

[0050] For current mold assembly production, place the lower mold and the middle mold together on the flat vulcanizer, close the middle mold, connect the half block, tighten the fastening bolts, and insert the preset core rod. Load the sealing plate, steel plate, and rubber into the mold in sequence. After the mold assembly is completed, cover the mold cover plate, close the mold and send it to the flat vulcanizer for vulcanization production. After vulcanization, remove the upper mold cover plate, loosen the half block fastening device bolts, remove the half block, separate the two-piece middle mold, take out the product, and complete the product demoulding.

[0051] For pre-molded production, the lower mold of the mold is placed on a flat vulcanizer, one end of the half block is connected and fastened to the mold, the middle part is connected by bolts through the reserved waist hole, and placed at the maximum displacement position of the waist hole. The pre-installed rubber support is hoisted into the middle mold, the core rod is aligned with the reserved core rod position in the middle of the lower mold cover plate, and the upper and lower mold tightening bolts at both ends of the half block are pre-tightened respectively, and the mold clearance and balance of the middle mold are adjusted. When the mold is closed, tighten all the locking bolts of the half block. Cover the mold cover plate, close the mold and send it into the flat vulcanizer for vulcanization production. After the vulcanization is completed, remove the upper mold cover plate, loosen the half block fastening device bolts, remove the half block, separate the two-piece middle mold, take out the product, and complete the product demolding.

[0052] The second type of support can also be produced by current mold production or pre-molding, which is the same as the production of the first type of support, but the difference is that the second type of support does not have a sealing plate but needs a flange plate. When vulcanization production is molded, the upper and lower molds can be retained for production, or the upper and lower mold cover plates can be not retained for production, and only the middle mold can be used for production, and the upper and lower flange plates of the second type of support can be used instead of the upper and lower mold cover plates.

[0053] It can be seen that the advantages of the utility model are:

[0054] 1. The mold of the utility model is universal and can meet the production of type I support and type II support at the same time.

[0055] 2. The middle mold of this mold is respectively provided with vertical overflow glue groove, annular tear edge groove and middle overflow glue hole. It fully ensures the fluidity of the rubber during the vulcanization process of the support, avoids the occurrence of undesirable conditions such as lack of glue and air pocket inside the support, and at the same time, the setting of the annular tear edge groove can effectively reduce the occurrence of flash and rotten edges of the product.

[0056] 3. It can simultaneously meet the pre-molded vulcanization production of type I and type II seismic isolation rubber bearings for buildings, greatly improving production efficiency and avoiding product quality abnormalities.

[0057] 4. The displacement and flatness adjustment methods such as guide rails used in traditional middle molds are cancelled and replaced by half block adjustment and leveling bolts, which makes the structure simpler and more convenient to use.

[0058] It is obvious that the above description and record are only examples and are not intended to limit the disclosure, application or use of the utility model. Although the embodiments have been described in the embodiments and described in the drawings, the utility model is not limited to the specific examples of the teachings of the utility model as the best mode currently considered to implement the utility model by the drawings and described in the embodiments, and the scope of the utility model will include any embodiment falling within the previous description and the attached claims.

Claims

1. A universal simple mold for a seismic isolation rubber bearing, comprising an upper mold cover, a two-piece middle mold, a half block fastening device and a lower mold cover, characterized in that: The two-petal middle mold is a matching circular ring structure, which includes an upper petal middle mold and a lower petal middle mold that are symmetrical in structure to form a circular ring structure. The upper petal middle mold and the lower petal middle mold are both semi-circular ring structures and are fixed by a half block fastening device after the two ends are close together. The upper end opening of the two-petal middle mold is closed by an upper mold cover plate, and the lower end opening is closed by a lower mold cover plate. The mating parts on both sides of the upper middle mold and the lower middle mold extend outwards respectively and are provided with clamping blocks. After the clamping blocks on both sides are mated, they are fixed by the half block fastening device to fasten the upper middle mold and the lower middle mold to form a middle mold cavity.

2. The universal simple mold for seismic isolation rubber bearing according to claim 1, characterized in that: The upper mold cover plate and the lower mold cover plate have the same structure, both comprising a circular plate-shaped cover plate body, and a sink is provided in the middle of the inner side of the cover plate body.

3. The universal simple mold for seismic isolation rubber bearing according to claim 1, characterized in that: A plurality of vertical annular glue overflow grooves extending up and down are evenly distributed on the inner walls of the upper middle mold and the lower middle mold, and a plurality of through glue overflow holes are symmetrically distributed in the middle of the upper middle mold and the lower middle mold.

4. The universal simple mold for seismic isolation rubber bearing according to claim 1, characterized in that: The upper and lower end surfaces of the upper and lower middle molds are both provided with circumferential annular tearing grooves.

5. The universal simple mold for seismic isolation rubber bearing according to any one of claims 1 to 4, characterized in that: The half block fastening device includes a concave half block and a convex half block, both of which are L-shaped. The lower end mating surface of the concave half block is provided with a groove, and the upper end mating surface of the convex half block is provided with a protrusion inserted into the groove, so that after the protrusion is inserted into the groove, the concave half block and the convex half block can fasten and engage the two side blocks of the upper lobe middle mold and the lower lobe middle mold.

6. The universal simple mold for seismic isolation rubber bearing according to claim 5, characterized in that: The concave half block and the convex half block are provided with two corresponding bolt holes, so as to penetrate and fasten the concave half block and the convex half block through fastening bolts from one side of the concave half block and the convex half block respectively.

7. The universal simple mold for seismic isolation rubber bearing according to claim 5, characterized in that: The clamping block is vertically provided with a plurality of vertical bolt holes, and a plurality of longitudinal bolt holes are arranged at positions perpendicular to the vertical bolt holes.

8. The universal simple mold for seismic isolation rubber bearing according to claim 7, characterized in that: The concave half block and the convex half block are provided with a plurality of vertical waist-shaped holes at the positions corresponding to the vertical bolt holes in the vertical direction, so that the vertical adjusting bolts can be screwed through the vertical bolt holes; the concave half block and the convex half block are provided with a plurality of longitudinal waist-shaped holes at the positions corresponding to the longitudinal bolt holes in the longitudinal direction, so that the longitudinal adjusting bolts can be screwed through the longitudinal bolt holes.

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