Porous SMC insulator processing die

Abstract

The utility model discloses a porous SMC (sheet molding compound) insulator processing die, which relates to the technical field of die processing and comprises a male die, a female die matched with the male die, a pressing block and a pair of locking bolts. The female die is provided with a limiting cavity from top to bottom, a cavity is formed in the limiting cavity, the pressing block can be inserted into the limiting cavity, the female die is provided with a pair of threaded holes matched with the locking bolts, the threaded holes are located in the two sides of the limiting cavity respectively, one ends of the locking bolts are in threaded connection with the threaded holes respectively, and the other ends of the locking bolts can press the pressing block; the male die is provided with a pressing groove matched with the pressing block and a locking groove matched with the locking bolt, the upper end of the pressing block and the upper end of the locking bolt can be inserted into the pressing groove and the locking groove respectively, and the problems that when an existing machining die is used for SMC insulator production, demolding is not easy, a product is prone to hanging breakage and forced demolding, and the product yield is low are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of mold processing, in particular to a processing mold for a porous SMC insulator. Background Art

[0002] An SMC insulator is a composite insulator made by a molding method and is composed of basic materials such as fiberglass cloth and epoxy resin or unsaturated polyester resin. The SMC insulator has excellent insulation performance, electrical arc breakdown resistance, mechanical strength and corrosion resistance, and is widely used in insulation equipment in fields such as electrical equipment, battery boxes, and transformers. Its manufacturing process is simple, the cost is low, it is easy to process and maintain, and it is an ideal insulating material.

[0003] Currently, when producing SMC insulators, the traditional molding process is generally adopted. In the traditional molding process, strong ejection is processed on the inner side of the lower mold. When the mold is demolded, the product is strongly retained on the lower mold by the strong ejection on the side. However, sometimes the product gets caught on the strong ejection and still remains on the upper mold. This molding method results in a low product yield, thus affecting the production efficiency of the product. Therefore, when the processing mold used in the traditional molding process is used for the production of SMC insulators, there are problems such as difficult demolding, the product is prone to getting caught on the strong ejection, and the product yield is relatively low.

[0004] In the invention with the application number: CN202110280741.X and the publication number: CN113001903A, an injection mold for producing porous rubber parts is disclosed, including: a front mold core, a front mold core insert, a rear mold core, an exhaust steel insert, an upper adjusting block, a beryllium copper part, a lower adjusting block, an upper fixing block, a lower fixing block, a connecting rod, a backing plate, a support plate, a thimble panel, and a thimble bottom plate. Although it facilitates the filling of molten rubber, when it is used for the production of SMC insulators, there are still problems such as difficult demolding, the product is prone to getting caught on the strong ejection, and the product yield is relatively low. Content of the Utility Model

[0005] Based on this, in view of the above problems, the utility model provides a processing mold for a porous SMC insulator, which solves the problems of difficult demolding, the product being prone to getting caught on the strong ejection, and the relatively low product yield when the current processing mold is used for the production of SMC insulators.

[0006] The technical solution of the utility model is as follows:

[0007] A processing mold for a porous SMC insulator includes a punch, a die matching with the punch, a pressure block and a pair of locking bolts, and the punch is arranged above the die;

[0008] The female die is provided with a limiting cavity, and a cavity is arranged in the limiting cavity. A pressing block can be inserted into the limiting cavity. The female die is provided with a pair of threaded holes which are arranged in cooperation with locking bolts. The pair of threaded holes are respectively located on both sides of the limiting cavity. One ends of the pair of locking bolts are respectively threadedly connected with the threaded holes, and the other ends can press the pressing block to realize the fixation of the pressing block;

[0009] The male die is provided with a pressing groove arranged in cooperation with the pressing block and a locking groove arranged in cooperation with the locking bolt. When the male die and the female die are buckled, the upper ends of the pressing block and the locking bolt can be respectively inserted into the pressing groove and the locking groove.

[0010] Preferably, arc-shaped positioning grooves arranged in cooperation with the locking bolts are arranged on both sides of the pressing block. One end of the locking bolt can be inserted into the threaded hole and threadedly connected with the threaded hole, and the other end can cooperate with the arc-shaped positioning groove for positioning and locking the pressing block.

[0011] Preferably, the male die is provided with a feeding port.

[0012] Preferably, an auxiliary assembly is further included. The auxiliary assembly includes a top plate, a bottom plate and four sliding rods arranged between the top plate and the bottom plate. The female die and the male die are arranged between the top plate and the bottom plate, and both the female die and the male die are slidably connected with the sliding rods. The male die is arranged below the top plate, the female die is arranged on the top of the bottom plate and is in contact with the bottom plate. A plurality of ejector rods are arranged on the bottom plate. The upper ends of the ejector rods penetrate through the female die and extend into the cavity of the female die. The lower ends of the ejector rods are fixedly connected with the bottom plate, and the upper ends are slidably connected with the female die. A first driving member for driving the male die to slide along the sliding rod is arranged on the top plate, and a second driving member for driving the female die to slide along the sliding rod is arranged on the bottom plate.

[0013] Preferably, there is a gap between the male die and the top plate.

[0014] Preferably, the male die is provided with four first connection blocks arranged in cooperation with the four sliding rods. The first connection blocks are fixedly connected with the male die. The first connection blocks are sleeved on the sliding rods and are slidably connected with the sliding rods. The male die is slidably connected with the sliding rods through the first connection blocks.

[0015] Preferably, the first driving member is a cylinder or a hydraulic cylinder. The first driving member is detachably connected with the top plate. The output end of the first driving member penetrates through the top plate and is fixedly connected with the top of the male die, and the output end of the first driving member is slidably connected with the top plate.

[0016] Preferably, a fixing plate is arranged on the first driving member. The fixing plate is sleeved on the first driving member and is fixedly connected with the first driving member. The fixing plate and the top plate are detachably connected by bolts.

[0017] Preferably, the female die is provided with four second connection blocks arranged in cooperation with the four sliding rods. The second connection blocks are fixedly connected with the female die. The second connection blocks are sleeved on the sliding rods and are slidably connected with the sliding rods. The female die is slidably connected with the sliding rods through the second connection blocks.

[0018] Preferably, the second driving member is a cylinder or a hydraulic cylinder. An installation groove is provided on the bottom plate, the second driving member is arranged in the installation groove, and the output end of the second driving member is fixedly connected to the bottom of the female mold.

[0019] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0020] During use, the pressing block is locked with the female mold through the locking bolts. After the SMC insulator is cooled and formed, since the pressing block presses the SMC insulator strongly in the female mold, when the male mold is pulled out, the SMC insulator will not remain on the male mold, and the SMC insulator can be smoothly demolded from the male mold. Then, the locking bolts are screwed out, and after the pressing block is taken out, the SMC insulator can be taken out from the female mold, thereby completing the demolding of the SMC insulator. This solves the problems that in the current processing mold for SMC insulator production, demolding is not easy, the product is prone to being hung up and forcibly demolded, and the product qualification rate is relatively low. Description of the Drawings

[0021] Figure 1 is a schematic structural diagram of a porous SMC insulator processing mold described in an embodiment of the present utility model;

[0022] Figure 2 is a partial structural schematic diagram of a porous SMC insulator processing mold described in an embodiment of the present utility model Figure 1 ;

[0023] Figure 3 is a partial structural schematic diagram of a porous SMC insulator processing mold described in an embodiment of the present utility model Figure 2 ;

[0024] Figure 4 is a partial structural schematic diagram of a porous SMC insulator processing mold described in an embodiment of the present utility model Figure 3 ;

[0025] Figure 5 is a partial structural schematic diagram of an auxiliary component described in an embodiment of the present utility model;

[0026] Description of the Reference Numerals:

[0027] 10 - male mold, 100 - pressing groove, 101 - locking groove, 102 - feed port, 103 - first connecting block, 20 - female mold, 200 - limiting cavity, 201 - cavity, 202 - threaded hole, 203 - second connecting block, 30 - pressing block, 300 - arc-shaped positioning groove, 40 - locking bolt, 50 - auxiliary component, 500 - top plate, 501 - bottom plate, 502 - sliding rod, 503 - ejecting rod, 504 - first driving member, 505 - second driving member, 506 - fixed disk, 507 - installation groove. Specific embodiments

[0028] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0029] Embodiment:

[0030] As Figures 1 to 3 shown, in order to solve the above problems, this embodiment discloses a porous SMC insulator processing mold, which includes a male mold 10, a female mold 20 adapted to the male mold 10, a pressure block 30 and a pair of locking bolts 40. The male mold 10 is arranged above the female mold 20;

[0031] The female mold 20 is provided with a limiting cavity 200 arranged from top to bottom. A cavity 201 is arranged in the limiting cavity 200. The pressure block 30 can be inserted into the limiting cavity 200. The female mold 20 is provided with a pair of threaded holes 202 arranged in cooperation with the locking bolts 40. The pair of threaded holes 202 are respectively located on both sides of the limiting cavity 200. One ends of the pair of locking bolts 40 are respectively threadedly connected to the threaded holes 202, and the other ends can press the pressure block 30 to realize the fixation of the pressure block 30;

[0032] The male mold 10 is provided with a pressing groove 100 arranged in cooperation with the pressure block 30 and a locking groove 101 arranged in cooperation with the locking bolts 40. When the male mold 10 and the female mold 20 are buckled, the upper ends of the pressure block 30 and the locking bolts 40 can be respectively inserted into the pressing groove 100 and the locking groove 101. The upper end of the pressure block 30 is inserted into the pressing groove 100, and the upper end of the locking bolt 40 is inserted into the locking groove 101.

[0033] During use, the pressure block 30 is locked with the female mold 20 through the locking bolts 40. When the SMC insulator is cooled and formed, since the pressure block 30 presses the SMC insulator strongly in the female mold 20, when the male mold 10 is pulled out, the SMC insulator will not remain on the male mold 10, and the SMC insulator can be smoothly demolded from the male mold 10. Then, the locking bolts 40 are screwed out, and after the pressure block 30 is taken out, the SMC insulator can be taken out from the female mold 20, thereby completing the demolding of the SMC insulator. It solves the problems that the current processing mold is not easy to demold, the product is easy to be hung up and forcibly demolded, and the product qualification rate is relatively low when used for the production of SMC insulators.

[0034] Among them, the settings of the pressing groove 100 and the locking groove 101 can enable the male mold 10 and the female mold 20 to be buckled better.

[0035] As Figure 4As shown, in order to facilitate the locking of the locking bolt 40 to the pressing block 30 and prevent the pressing block 30 from detaching, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that arc-shaped positioning grooves 300 are provided on both sides of the pressing block 30 and are arranged in cooperation with the locking bolt 40. One end of the locking bolt 40 can be inserted into the threaded hole 202 and threadedly connected to the threaded hole 202, and the other end can cooperate with the arc-shaped positioning groove 300 for positioning and locking the pressing block 30.

[0036] During use, only need to screw one end of the locking bolt 40 into the threaded hole 202 so that the other end thereof forms a cooperation with the arc-shaped positioning groove 300, then the locking and positioning of the pressing block 30 can be completed.

[0037] As Figure 4 shown, preferably, a feed inlet 102 is provided on the punch 10.

[0038] The feed inlet 102 can be set according to actual needs, and the setting of the feed inlet 102 can refer to the prior art. The heat dissipation holes on the punch 10 and the die 20 can be set according to actual needs, and the setting of the heat dissipation holes can refer to the prior art. The formation of multiple holes on the SMC insulator can be achieved by setting corresponding hole-forming structures on the punch 10, and the formation of multiple holes can refer to the prior art.

[0039] As Figure 1 、 Figure 2 、 Figure 4 、 Figure 5 shown, in order to further facilitate the demolding of the SMC insulator, this embodiment is modified based on the above embodiment. The difference from the above embodiment is that it further includes an auxiliary component 50. The auxiliary component 50 includes a top plate 500, a bottom plate 501, and four sliding rods 502 arranged between the top plate 500 and the bottom plate 501. The die 20 and the punch 10 are arranged between the top plate 500 and the bottom plate 501, and both the die 20 and the punch 10 are slidably connected to the sliding rods 502. The punch 10 is arranged below the top plate 500, the die 20 is arranged on the top of the bottom plate 501 and is in contact with the bottom plate 501. A plurality of ejector rods 503 are provided on the bottom plate 501. The upper end of the ejector rod 503 penetrates through the die 20 and extends into the cavity 201 of the die 20. The lower end of the ejector rod 503 is fixedly connected to the bottom plate 501, and the upper end is slidably connected to the die 20. A first driving member 504 for driving the punch 10 to slide along the sliding rod 502 is provided on the top plate 500, and a second driving member 505 for driving the die 20 to slide along the sliding rod 502 is provided on the bottom plate 501.

[0040] During use, first, the second driving member 505 is used to raise the female mold 20 along the sliding rod 502 so that the upper end of the ejector rod 503 is flush with the bottom of the cavity 201. Then, the first driving member 504 is used to drive the male mold 10 to engage with the female mold 20 to complete the mold closing. When demolding is required, first, the first driving member 504 is used to drive the male mold 10 to separate from the female mold 20. Then, the locking bolt 40 is unscrewed, the pressing block 30 is removed, and then the second driving member 505 is used to drive the female mold 20 to descend so that the upper end of the ejector rod 503 can eject the formed SMC insulator from the cavity 201, thereby completing the demolding of the SMC insulator. This demolding method can improve the yield rate of the SMC insulator to a certain extent.

[0041] Preferably, there is a gap between the male mold 10 and the top plate 500. The setting of the gap can facilitate the connection of the feed inlet 102 to the feeding device.

[0042] As Figure 4 shown, for the convenience of the sliding of the male mold 10 and the installation of the first driving member 504, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that four first connection blocks 103 are provided on the male mold 10 and are arranged in cooperation with the four sliding rods 502. The first connection blocks 103 are fixedly connected to the male mold 10. The first connection blocks 103 are sleeved on the sliding rods 502 and are slidably connected to the sliding rods 502. The male mold 10 is slidably connected to the sliding rods 502 through the first connection blocks 103.

[0043] Preferably, the first driving member 504 is a cylinder or a hydraulic cylinder. The first driving member 504 is detachably connected to the top plate 500. The output end of the first driving member 504 penetrates through the top plate 500 and is fixedly connected to the top of the male mold 10, and the output end of the first driving member 504 is slidably connected to the top plate 500.

[0044] Preferably, a fixing plate 506 is provided on the first driving member 504. The fixing plate 506 is sleeved on the first driving member 504 and is fixedly connected to the first driving member 504. The fixing plate 506 is detachably connected to the top plate 500 through bolts.

[0045] During use, the detachable connection between the first driving member 504 and the top plate 500 through the fixing plate 506 by bolts can facilitate the installation and disassembly of the first driving member 504. The setting of the first connection blocks 103 can facilitate the sliding connection between the male mold 10 and the sliding rods 502. The first driving member 504 can drive the male mold 10, and then the first connection blocks 103 slide on the sliding rods 502, and then the male mold 10 slides on the sliding rods 502 along with the first connection blocks 103.

[0046] As Figure 4As shown, for the convenience of the sliding of the female mold 20 and the installation of the second driving member 505, this embodiment is modified on the basis of the above embodiment. The difference from the above embodiment is that four second connection blocks 203 are provided on the female mold 20 and are arranged in cooperation with the four sliding rods 502. The second connection blocks 203 are fixedly connected to the female mold 20. The second connection blocks 203 are sleeved on the sliding rods 502 and are slidably connected to the sliding rods 502. The female mold 20 is slidably connected to the sliding rods 502 through the second connection blocks 203.

[0047] As Figure 5 shown, preferably, the second driving member 505 is a cylinder or a hydraulic cylinder. An installation groove 507 is provided on the bottom plate 501. The second driving member 505 is arranged in the installation groove 507. The output end of the second driving member 505 is fixedly connected to the bottom of the female mold 20.

[0048] During use, the second driving member 505 is installed in the installation groove 507 on the bottom plate 501, which can facilitate the contact between the bottom plate 501 and the female mold 20, effectively reduce the overall height of the present invention, and also facilitate the installation of the second driving member 505; the setting of the second connection blocks 203 can facilitate the sliding connection between the female mold 20 and the sliding rods 502. The second driving member 505 can drive the female mold 20, so that the second connection blocks 203 slide on the sliding rods 502, and then the female mold 20 slides on the sliding rods 502 along with the second connection blocks 203.

[0049] The working principle of the present invention:

[0050] During use, the pressing block 30 is locked to the female mold 20 through the locking bolt 40. After the SMC insulator is cooled and formed, since the pressing block 30 presses the SMC insulator strongly in the female mold 20, when the male mold 10 is pulled out, the SMC insulator will not remain on the male mold 10, and the SMC insulator can be smoothly demolded from the male mold 10. Then, the locking bolt 40 is screwed out, and after the pressing block 30 is taken out, the SMC insulator can be taken out from the female mold 20, thus completing the demolding of the SMC insulator.

[0051] The above-described embodiments only represent the specific embodiments of the present invention, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. A porous SMC insulator processing mold, characterized in that: It comprises a male mold (10), a female mold (20) adapted to the male mold (10), a pressing block (30) and a pair of locking bolts (40), wherein the male mold (10) is arranged above the female mold (20); The concave die (20) is provided with a limiting cavity (200), a mold cavity (201) is provided in the limiting cavity (200), a pressing block (30) can be inserted into the limiting cavity (200), a pair of threaded holes (202) arranged in cooperation with a locking bolt (40) are provided on the concave die (20), the pair of threaded holes (202) are respectively located on both sides of the limiting cavity (200), one end of a pair of locking bolts (40) is respectively threadedly connected to the threaded holes (202), and the other end can press the pressing block (30) to achieve the fixation of the pressing block (30); The punch (10) is provided with a pressing groove (100) which is arranged in cooperation with the pressing block (30) and a locking groove (101) which is arranged in cooperation with the locking bolt (40). When the punch (10) and the die (20) are engaged, the upper ends of the pressing block (30) and the locking bolt (40) can be inserted into the pressing groove (100) and the locking groove (101) respectively.

2. A porous SMC insulator processing mold according to claim 1, characterized in that: Arc-shaped positioning grooves (300) are provided on both sides of the pressing block (30) for cooperating with the locking bolt (40); one end of the locking bolt (40) can be inserted into the threaded hole (202) and threadedly connected with the threaded hole (202), and the other end can cooperate with the arc-shaped positioning groove (300) for positioning and locking the pressing block (30).

3. A porous SMC insulator processing mold according to claim 2, characterized in that: The male die (10) is provided with a feed port (102).

4. A porous SMC insulator processing mold according to claim 1 or 3, characterized in that: The invention also includes an auxiliary component (50), wherein the auxiliary component (50) includes a top plate (500), a bottom plate (501) and four sliding rods (502) arranged between the top plate (500) and the bottom plate (501), the concave mold (20) and the convex mold (10) are arranged between the top plate (500) and the bottom plate (501), and the concave mold (20) and the convex mold (10) are both slidably connected to the sliding rods (502), the convex mold (10) is arranged below the top plate (500), and the concave mold (20) is arranged on the top of the bottom plate (501) and is in contact with the bottom plate (501). A plurality of ejector rods (503) are provided on the bottom plate (501), the upper ends of the ejector rods (503) penetrate the die (20) and extend into the cavity (201) of the die (20), the lower ends of the ejector rods (503) are fixedly connected to the bottom plate (501), and the upper ends are slidably connected to the die (20), the top plate (500) is provided with a first driving member (504) for driving the punch (10) to slide along the slide bar (502), and the bottom plate (501) is provided with a second driving member (505) for driving the die (20) to slide along the slide bar (502).

5. A porous SMC insulator processing mold according to claim 4, characterized in that: There is a gap between the male mold (10) and the top plate (500).

6. A porous SMC insulator processing mold according to claim 5, characterized in that: The punch (10) is provided with four first connection blocks (103) which are arranged in cooperation with the four slide bars (502); the first connection blocks (103) are fixedly connected to the punch (10); the first connection blocks (103) are sleeved on the slide bars (502) and are slidably connected to the slide bars (502); the punch (10) is slidably connected to the slide bars (502) via the first connection blocks (103).

7. A porous SMC insulator processing mold according to claim 6, characterized in that: The first driving member (504) is a cylinder or a hydraulic cylinder. The first driving member (504) is detachably connected to the top plate (500). The output end of the first driving member (504) passes through the top plate (500) and is fixedly connected to the top of the punch (10). The output end of the first driving member (504) is slidably connected to the top plate (500).

8. A porous SMC insulator processing mold according to claim 7, characterized in that: A fixing plate (506) is provided on the first driving member (504). The fixing plate (506) is sleeved on the first driving member (504) and fixedly connected to the first driving member (504). The fixing plate (506) is detachably connected to the top plate (500) via bolts.

9. The porous SMC insulator processing mold according to claim 4, characterized in that: The die (20) is provided with four second connection blocks (203) which are arranged in cooperation with the four slide bars (502); the second connection blocks (203) are fixedly connected to the die (20); the second connection blocks (203) are sleeved on the slide bars (502) and are slidably connected to the slide bars (502); the die (20) is slidably connected to the slide bars (502) via the second connection blocks (203).

10. A porous SMC insulator processing mold according to claim 9, characterized in that: The second driving member (505) is a cylinder or a hydraulic cylinder. A mounting groove (507) is provided on the bottom plate (501). The second driving member (505) is arranged in the mounting groove (507). The output end of the second driving member (505) is fixedly connected to the bottom of the concave mold (20).

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