CN114914040B - Spin forming method for cylindrical head suspension type porcelain insulator blank - Google Patents
Spin forming method for cylindrical head suspension type porcelain insulator blank Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 24
- 229910052573 porcelain Inorganic materials 0.000 title claims abstract description 24
- 239000000725 suspension Substances 0.000 title claims abstract description 24
- 239000012212 insulator Substances 0.000 title claims abstract description 23
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 68
- 239000010959 steel Substances 0.000 claims abstract description 68
- 238000009987 spinning Methods 0.000 claims abstract description 30
- 238000003825 pressing Methods 0.000 claims abstract description 16
- 238000005520 cutting process Methods 0.000 claims abstract description 4
- 238000007664 blowing Methods 0.000 claims description 20
- 230000007306 turnover Effects 0.000 claims description 8
- 238000005507 spraying Methods 0.000 claims description 6
- 238000001035 drying Methods 0.000 claims description 4
- 238000007493 shaping process Methods 0.000 abstract description 14
- 238000012545 processing Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 abstract description 5
- 230000008859 change Effects 0.000 abstract description 3
- 239000004927 clay Substances 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000003754 machining Methods 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 43
- 239000000047 product Substances 0.000 description 23
- 238000009423 ventilation Methods 0.000 description 13
- 238000010586 diagram Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- 230000000903 blocking effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
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Abstract
A spin forming method of a cylindrical head suspension porcelain insulator body comprises the following steps: s1, processing a blank by a vacuum pugging machine, and then cutting the blank into a mud section with a fixed length; s2, preliminary shaping of the fixed-length mud section is achieved through an outer shaping pressing table and an outer shaping die, so that blanks can be formed; s3, enabling the blank to be overturned along with the external forming press table through the demolding station and fall into the air-permeable steel lower die to effectively attach to the air-permeable steel lower die; s4, pressing the inner forming die of the spinning station to the air-permeable steel lower die through multiple times of rotation so as to realize spinning forming of the blank, thereby obtaining a finished product with excellent and stable quality; the scheme can effectively avoid the problem that the blank is too large in extension in the inner forming process, further reduces or avoids the problem that the strength of a finished product is reduced, the internal clay layer is broken and the like, and the strength defect of the finished product is influenced due to the fact that the machining stress is too high and the like caused by the severe shape change of the blank, and finally, the finished product with stable quality and good consistency is obtained.
Description
Technical Field
The invention relates to the field of spin forming methods of suspension porcelain insulator blanks, in particular to a spin forming method of a cylindrical head suspension porcelain insulator blank.
Background
From the product structure, the line suspension porcelain insulator has two product structures, namely a cylindrical head and a conical head. Compared with the conical head disc type porcelain suspension insulator, the cylindrical head disc type porcelain suspension insulator has the characteristics of excellent electrical performance, light weight and small raw material energy consumption, meets the international IEC standard, is easy to realize automatic production, has obvious competitive advantage, and is a technical development trend of suspension type circuit porcelain in future. Therefore, the research and development of the spin forming technology of the cylindrical head disk-type suspension porcelain insulator and related key equipment have very important significance.
Disclosure of Invention
The invention aims to provide a cylindrical head suspension type porcelain insulator blank spinning forming method which is convenient for full-automatic production and has excellent and stable production quality.
In order to solve the problems, the invention provides a cylindrical head suspension porcelain insulator blank spinning forming method, which comprises the following steps:
S1, placing the blank into a vacuum pugging machine for treatment, and cutting the treated blank into a mud section with a fixed length according to a preset length;
S2, moving the fixed-length mud section to an outer forming press table of a feeding station, spraying mold release oil on the surface of the fixed-length mud section, then conveying the outer forming press table to a stamping station provided with an outer forming die, pressing the outer forming press table and the outer forming die, forming a blank after the outer forming die presses the fixed-length mud section into a required primary shape, and then separating the outer forming press table from the outer forming die;
s3, conveying an outer forming press table of the stamping station to the demolding station, turning over the outer forming press table to invert the blank, separating the inverted blank from the outer forming press table and dropping the inverted blank into a gas-permeable steel lower die of the demolding station, and then conveying the gas-permeable steel lower die of the demolding station to a spinning station provided with an inner forming die;
s4, spraying mold release oil on the surface of a blank at a spinning station, then pressing the inner forming die to the air-permeable steel lower die for spinning forming while rotating for a plurality of times, and removing excess pug extruded from between the inner forming die and the air-permeable steel lower die until the blank is formed into a finished product;
s5, conveying the air-permeable steel lower die containing the finished product to a demolding station provided with a tray, overturning the air-permeable steel lower die to enable the finished product to be restored to a normal state, blowing the air-permeable steel lower die, separating the finished product from the air-permeable steel lower die by utilizing air pressure, and falling the finished product to the tray to finish demolding.
Compared with the prior art, the scheme has the advantages that the preliminary shaping of the fixed-length mud section is realized through the pressing action of the outer shaping pressing table and the outer shaping die, the blank can form a blank with a rough shape, then the blank can be overturned along with the outer shaping pressing table through the arrangement of the demolding station and falls into the breathable steel lower die to be effectively attached to the breathable steel lower die, and the inner shaping die of the spinning station is pressed to the breathable steel lower die through multiple times of rotation and pressing, so that the blank is subjected to spinning forming, and a finished product with excellent and stable quality is obtained; it should be noted that the above-mentioned "multiple times" means that the inner forming die is pressed to the lower die of the air-permeable steel at least twice, so as to reduce the molding deformation degree of the blank in each spinning forming process, avoid the blank from being too large in extension in the inner forming process, further reduce or avoid the problems of product strength attenuation, internal clay layer fracture and the like caused by factors such as too high processing stress and the like caused by severe shape change of the blank, and finally obtain the product with stable quality and good consistency.
Preferably, the inner forming die comprises a preforming die, a middle forming die and a final forming die which are sequentially arranged, the forming surface of the preforming die is smooth, a plurality of annular middle forming grooves which are distributed along the radial direction are formed in the forming surface of the middle forming die, a plurality of annular final forming grooves which are distributed along the radial direction are formed in the forming surface of the final forming die, the groove depth of the final forming grooves is larger than that of the middle forming grooves, in step S4, the forming surfaces of the preforming die, the middle forming die and the final forming die are sequentially rotated and pressed to the blank on the lower breathable steel die, and release oil is sprayed on the surface of the blank before each spinning forming, and redundant pug is removed after each spinning forming. The blank is rotationally pressed through the preforming die, the middle forming die and the final forming die for three times, so that the blank is better subjected to internal forming processing at the spinning station, the processing stress of the internal forming die which is applied to the blank and rotationally pressed is further weakened, and the quality of a finished product is improved.
Preferably, the middle parts of the molding surfaces of the pre-molding mold, the middle molding mold and the final molding mold are respectively provided with a convex pre-molding boss, a middle molding boss and a final molding boss, and the heights of the protrusions of the pre-molding boss, the middle molding boss and the final molding boss are sequentially increased, so that the blank can be better changed into a required shape.
Preferably, a middle mud outlet is formed between the bottom of the middle forming groove and one side, far away from the blank, of the middle forming die, and a final mud outlet is formed between the bottom of the final forming groove and one side, far away from the blank, of the final forming die, so that redundant mud can be stably extruded from the middle mud outlet and the final mud outlet along with the rotary pressing of the middle forming die and the final forming die relative to the blank, and the blank can be better processed into the shapes required by the processing positions of the middle forming groove and the final forming groove.
Preferably, the aperture of the end, close to the blank, of the middle mud outlet is smaller than that of the end, far away from the blank, of the end, close to the blank, of the final mud outlet is smaller than that of the end, far away from the blank, so that redundant mud can be extruded more stably, and the blocking problem of the middle mud outlet and the final mud outlet is avoided.
Preferably, the release station in the step S3 comprises a release clamping jaw for clamping the outer forming press table, a release power piece for driving the release clamping jaw to turn over, and a release blowing assembly for blowing air to the outer forming press table so as to separate a blank from the outer forming die.
Preferably, the demolding station in the step S5 comprises a demolding clamping jaw for clamping the breathable steel lower mold, a demolding power piece for driving the demolding clamping jaw to turn over, and a demolding blowing assembly for providing gas.
Preferably, the temperature of the outer forming die in the step S2 is 150-300 ℃, so that the fixed-length mud section can be quickly and better deformed into a blank with a rough shape, and the processing efficiency is improved.
Preferably, after the finished product falls onto the tray in step S5, the tray is transported to a drying area to dry the finished product.
Preferably, the outer forming press table in the step S3 is turned over again after being separated from the blank, and is moved to a feeding station to realize resetting; and after the breathable steel lower die in the step S5 is separated from the finished product, the breathable steel lower die is turned over again and moved to a die release station for resetting, so that the outer forming press table and the breathable steel lower die can be recycled, and the processing efficiency is effectively improved.
Drawings
FIG. 1 is a press-fit state diagram of an outer forming press table and an outer forming die of a cylindrical head suspension porcelain insulator blank spin forming method;
FIG. 2 is a state diagram showing a preform mold of a cylindrical head suspension porcelain insulator body spin forming method pressed onto a gas permeable steel lower mold;
FIG. 3 is a state diagram showing the middle forming die of the cylindrical head suspension porcelain insulator blank spin forming method pressed to the lower air permeable steel die;
fig. 4 is a state diagram of pressing the final forming die of the cylindrical head suspension porcelain insulator blank body to the lower air permeable steel die by the spinning forming method.
Reference numerals illustrate:
a0, an external forming press table; b0, an outer forming die; c0, breathable steel lower die; d1, preforming a die; d11, preforming a boss; d2, an intermediate forming die; d21, a middle mud outlet; d22, a middle forming groove; d23, middle forming boss; d3, final forming die; d31, finally discharging mud holes; d32, a final forming groove; d33, finally forming the boss.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof which are illustrated in the appended drawings. The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention. It should be further noted that, in the embodiments of the present invention, all directional indications (such as up, down, left, right, front, back, inner, and outer) are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indication is correspondingly changed.
Referring to fig. 1 to 4, the spin forming method for a cylindrical head suspension porcelain insulator blank provided by the embodiment of the invention comprises the following steps:
s1, placing the blanks into a vacuum pugging machine for treatment, extruding the treated blanks to a conveyor belt, and cutting the blanks on the conveyor belt into mud segments with fixed lengths according to preset lengths;
S2, moving the fixed-length mud section to an outer forming press table a0 of a feeding station through a transfer manipulator, spraying mold release oil on the surface of the fixed-length mud section, and then conveying the outer forming press table a0 to a stamping station provided with an outer forming die b 0; the outer forming die b0 is in a concave arc shape and is fixedly arranged at the upper position of the outer forming press table a 0; the outer shaping pressing table a0 and the outer shaping die b0 are mutually pressed by pushing the outer shaping pressing table a0 upwards through an oil cylinder or a similar power piece, a blank is formed after the outer shaping die b0 presses the upper surface of the fixed-length mud section into a required preliminary shape, and then the outer shaping pressing table a0 is separated from the outer shaping die b 0;
S3, conveying an outer forming press table a0 of a stamping station to a demolding station, turning the outer forming press table a0 by 180 degrees to enable a blank to be in an inverted state, separating the inverted blank from the outer forming press table a0 and falling into a ventilation steel lower die c0 of the demolding station, wherein the ventilation steel lower die c0 is similar to the outer forming die b0 in shape, and meanwhile an inner concave surface of the ventilation steel lower die c0 is initially arranged upwards, so that the blank can fall into and be effectively attached to the inner concave surface of the ventilation steel lower die c 0; then the air-permeable steel lower die c0 of the demolding station is conveyed to a spinning station provided with an inner molding die, and the outer molding press table a0 is turned over 180 degrees again and is moved to a feeding station to realize resetting;
S4, spraying mold release oil on the surface of a blank at a spinning station, then pressing the inner forming die to the air-permeable steel lower die c0 for spinning forming while rotating for a plurality of times, and removing excessive pug extruded from between the inner forming die and the air-permeable steel lower die c0 until the blank is formed into a finished product;
S5, conveying the air-permeable steel lower die c0 containing the finished product to a demolding station provided with a tray, turning over the air-permeable steel lower die c0 for 180 degrees to enable the finished product to be in a normal state, then blowing air to the air-permeable steel lower die c0, separating the finished product from the air-permeable steel lower die c0 by air pressure and dropping the air-permeable steel lower die c0 to the tray to finish demolding, turning over the air-permeable steel lower die c0 for 180 degrees again, and moving the air-permeable steel lower die c0 to the demolding station to reset.
The "multiple times" in the above step S4 means that the inner forming die is pressed to the air-permeable steel lower die c0 at least by rotating twice, and compared with the prior art, the above scheme can reduce the molding deformation degree of the blank in each spinning forming process, avoid the blank from being too large in extension in the inner forming process, and further reduce or avoid the occurrence of the problems of product strength defect influence caused by product strength attenuation, internal clay layer fracture and the like due to too high processing stress and other factors caused by severe shape change of the blank.
In this embodiment, the inner forming mold includes a preformed mold d1, an intermediate forming mold d2, and a final forming mold d3, which are sequentially disposed, and one side of the preformed mold d1, the intermediate forming mold d2, and the final forming mold d3 facing the blank is a forming surface. In step S4, the blank of the lower gas permeable steel mold c0 is sequentially and respectively subjected to spin forming by the pre-forming mold d1, the middle forming mold d2 and the final forming mold d3, and a release oil is sprayed on the surface of the blank, which is not covered by the lower gas permeable steel mold c0, before each spin forming, and the excessive pug is removed after each spin forming.
Specifically, a pre-forming die d1, an intermediate forming die d2 and a final forming die d3 are sequentially arranged from front to back above the spinning station, and the pre-forming die d1, the intermediate forming die d2 and the final forming die d3 are driven by a motor to rotate and driven by an oil cylinder to lift. The molding surface of the preformed mold d1 is smooth; the molding surface of the middle molding die d2 is provided with a plurality of annular middle molding grooves d22 distributed along the radial direction, and the middle molding grooves d22 are used for contacting with the blank to realize the molding of the blank; the molding surface of the final molding die d3 is provided with a plurality of annular final molding grooves d32 distributed along the radial direction, the final molding grooves d32 are used for contacting with the blank to mold the blank, and the groove depth of the final molding grooves d32 is larger than that of the middle molding groove d 22. The lower permeable steel die c0 is moved from front to back under the spinning station by a stepping device or a conveyor device in the prior art, when the lower permeable steel die c0 is moved under the preforming die d1, the stripping oil is sprayed to the blank for the first time, then the preforming die d1 is rotated and pressed down until the preforming die d1 is abutted against the blank to realize the first spinning forming, meanwhile, the extruded surplus mud between the preforming die d1 and the lower permeable steel die c0 is removed, then the preforming die d1 is lifted to be separated from the blank, the lower permeable steel die c0 is moved under the middle forming die d2, the stripping oil is sprayed to the blank for the second time, then the middle forming die d2 is rotated and pressed down until the middle forming die d2 is abutted against the blank to realize the second spinning forming, meanwhile, the extruded surplus mud between the middle forming die d2 and the lower permeable steel die c0 is removed, then the middle forming die is lifted to be separated from the blank, the air permeable steel die c0 is moved to the lower end of the spinning forming die d3, the third time is sprayed to the middle forming die d2, the surplus mud is pressed down to realize the blank is pressed down to be separated from the blank by the middle forming die d3, and finally the blank is pressed down to be separated by the middle forming die d3, and finally, the surplus mud is separated from the blank is separated by the middle forming die 3, and finally, and the surplus mud is separated.
In addition, according to the shape required by the finished product, the middle parts of the molding surfaces of the pre-molding die d1, the middle molding die d2 and the final molding die d3 are respectively provided with a convex pre-molding boss d11, a middle molding boss d23 and a final molding boss d33, and the convex heights of the pre-molding boss d11, the middle molding boss d23 and the final molding boss d33 are sequentially increased, so that the blank can be better changed into the required shape.
In this embodiment, a middle mud hole d21 is formed between the bottom of the middle forming groove d22 and the side of the middle forming die d2 away from the blank, and a final mud hole d31 is formed between the bottom of the final forming groove d32 and the side of the final forming die d3 away from the blank, so that as the middle forming die d2 and the final forming die d3 are pressed against the blank in a rotating manner, excessive mud can be stably extruded from the middle mud hole d21 and the final mud hole d31, and the blank can be better processed by the middle forming groove d22 and the final forming groove d 32. Further, the aperture of the end, close to the blank, of the middle mud outlet d21 is smaller than that of the end, far away from the blank, of the end, close to the blank, of the final mud outlet d31 is smaller than that of the end, far away from the blank, so that redundant mud can be extruded more stably, and the problem of blocking of the middle mud outlet d21 and the final mud outlet d31 is avoided. Of course, the surplus sludge may be extruded not only from the intermediate sludge outlet d21 or the final sludge outlet d31, but also from the gap between the preform die d1 and the air-permeable steel lower die c0, or the gap between the intermediate molding die d2 and the air-permeable steel lower die c0, or the gap between the final molding die d3 and the air-permeable steel lower die c0 during the rotary press-fitting.
In this embodiment, the outer molding press a0 is provided with a plurality of ventilation holes penetrating through the upper end face and the lower end face, and the ventilation steel lower die c0 is also provided with a plurality of ventilation holes penetrating through the upper end face and the lower end face, that is, the outer molding press a0 and the ventilation steel lower die c0 are both porous ventilation structures. In step S3, the mold release station includes a mold release clamping jaw for clamping the outer molding press table a0, a mold release power piece for driving the mold release clamping jaw to turn over, and a mold release blowing assembly for blowing air to the outer molding press table a0 to separate the blank from the outer molding die b 0; the demolding station in the step S5 comprises a demolding clamping jaw for clamping the breathable steel lower die c0, a demolding power piece for driving the demolding clamping jaw to turn over and a demolding blowing assembly for providing gas. The demolding clamping jaw and the demolding clamping jaw are mechanical clamping jaws in the prior art; the demolding power piece and the demolding power piece are motors arranged in the transverse direction, and output shafts of the demolding power piece and the demolding power piece are respectively connected with the demolding clamping jaw and the demolding clamping jaw so as to respectively drive the demolding clamping jaw and the demolding clamping jaw; the demolding blowing assembly and the demolding blowing assembly are air nozzles capable of blowing out compressed air. The release blowing assembly is arranged above the outer forming press table a0 in a turnover downward state, and compressed air blown out by the release blowing assembly passes through the air holes of the outer forming press table a0 to enable blanks below the outer forming press table a0 to fall off; similarly, by arranging the demoulding and blowing assembly above the ventilation steel lower die c0 in a turnover downward state, the compressed air blown by the demoulding and blowing assembly passes through the ventilation holes of the ventilation steel lower die c0 so that a finished product positioned below the ventilation steel lower die c0 falls off.
As an optimization of the present embodiment, the temperature of the outer forming die b0 in step S2 is 150-300 ℃, preferably 200 ℃, so that the fixed-length mud section can be deformed into a blank with a rough shape more quickly and better, and the processing efficiency is improved.
As an extension of this embodiment, after the finished product in step S5 falls onto the tray, the tray is transported to the drying area to achieve drying of the finished product.
Although the present disclosure is described above, the scope of protection of the present disclosure is not limited thereto. Various changes and modifications may be made by one skilled in the art without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the scope of the invention.
Claims (7)
1. The spin forming method of the cylindrical head suspension type porcelain insulator blank is characterized by comprising the following steps of:
S1, placing the blank into a vacuum pugging machine for treatment, and cutting the treated blank into a mud section with a fixed length according to a preset length;
S2, moving the fixed-length mud section to an outer forming press table (a 0) of a feeding station, spraying mold release oil on the surface of the fixed-length mud section, then conveying the outer forming press table (a 0) to a stamping station provided with an outer forming die (b 0), pressing the outer forming press table (a 0) and the outer forming die (b 0), forming a blank after the outer forming die (b 0) presses the fixed-length mud section into a required preliminary shape, and then separating the outer forming press table (a 0) from the outer forming die (b 0);
S3, conveying an outer forming press table (a 0) of the stamping station to the demolding station, turning over the outer forming press table (a 0) to invert the blank, separating the inverted blank from the outer forming press table (a 0) and falling into a gas-permeable steel lower die (c 0) of the demolding station, and then conveying the gas-permeable steel lower die (c 0) of the demolding station to a spinning station provided with an inner forming die;
S4, spraying mold release oil on the surface of a blank at a spinning station, then pressing the inner forming die to the air-permeable steel lower die (c 0) for spinning forming while rotating for a plurality of times, and removing excess pug extruded from between the inner forming die and the air-permeable steel lower die (c 0) until the blank is formed into a finished product;
S5, conveying the air-permeable steel lower die (c 0) containing the finished product to a demolding station provided with a tray, overturning the air-permeable steel lower die (c 0) to enable the finished product to be restored to a normal state, blowing the air-permeable steel lower die (c 0), separating the finished product from the air-permeable steel lower die (c 0) by utilizing air pressure, and falling the finished product to the tray to finish demolding;
The inner forming die comprises a preforming die (d 1), a middle forming die (d 2) and a final forming die (d 3) which are sequentially arranged, the forming surface of the preforming die (d 1) is smooth, a plurality of annular middle forming grooves (d 22) which are distributed in the radial direction are formed in the forming surface of the middle forming die (d 2), a plurality of annular final forming grooves (d 32) which are distributed in the radial direction are formed in the forming surface of the final forming die (d 3), the groove depth of the final forming groove (d 32) is larger than the groove depth of the middle forming groove (d 22), in step S4, the forming surfaces of the preforming die (d 1), the middle forming die (d 2) and the final forming die (d 3) are sequentially rotated and pressed to be a blank on a lower breathable steel die (c 0), spinning demolding oil is sprayed on the surface of the blank before each forming, and redundant pug is removed after each forming;
a middle mud outlet (d 21) is formed between the bottom of the middle forming groove (d 22) and one side, far away from the blank, of the middle forming die (d 2), and a final mud outlet (d 31) is formed between the bottom of the final forming groove (d 32) and one side, far away from the blank, of the final forming die (d 3);
The aperture of the end, close to the blank, of the middle mud outlet hole (d 21) is smaller than that of the end, far away from the blank, of the final mud outlet hole (d 31) is smaller than that of the end, close to the blank, of the final mud outlet hole (d 31).
2. The cylindrical head suspension porcelain insulator blank spinning forming method according to claim 1, wherein protruding preformed bosses (d 11), middle formed bosses (d 23) and final formed bosses (d 33) are respectively arranged in the middle of forming surfaces of the preformed die (d 1), the middle formed die (d 2) and the final formed die (d 3), and protruding heights of the preformed bosses (d 11), the middle formed bosses (d 23) and the final formed bosses (d 33) are sequentially increased.
3. The spin forming method of cylindrical head suspension porcelain insulator body according to claim 1, wherein the temperature of the outer forming die (b 0) in step S2 is 150-300 ℃.
4. The cylindrical head suspension porcelain insulator blank spinning forming method according to claim 1, wherein the outer forming press table (a 0) is of a porous and breathable structure, and the demolding station in the step S3 comprises a demolding clamping jaw for clamping the outer forming press table (a 0), a demolding power piece for driving the demolding clamping jaw to turn over and a demolding blowing assembly for blowing air to the outer forming press table (a 0) so as to enable the blank to be separated from the outer forming die (b 0).
5. The cylindrical head suspension porcelain insulator blank spinning forming method according to claim 1, wherein the demolding station in the step S5 comprises a demolding clamping jaw for clamping the air-permeable steel lower die (c 0), a demolding power piece for driving the demolding clamping jaw to turn over, and a demolding blowing assembly for blowing toward the air-permeable steel lower die (c 0).
6. The method for spin forming a cylindrical head suspension porcelain insulator blank according to claim 1, wherein after the finished product falls onto the tray in the step S5, the tray is transported to a drying area to dry the finished product.
7. The spin forming method of cylindrical head suspension porcelain insulator blank according to claim 1, wherein the outer forming press table (a 0) in step S3 is turned over again after being separated from the blank, and is moved to the feeding station to realize resetting; and (3) after the breathable steel lower die (c 0) in the step S5 is separated from the finished product, overturning again, and moving to a die stripping station for resetting.
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| CN202210532102.2A CN114914040B (en) | 2022-05-06 | 2022-05-06 | Spin forming method for cylindrical head suspension type porcelain insulator blank |
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| CN202210532102.2A CN114914040B (en) | 2022-05-06 | 2022-05-06 | Spin forming method for cylindrical head suspension type porcelain insulator blank |
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| CN114914040B true CN114914040B (en) | 2024-07-26 |
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| JPH06103845A (en) * | 1992-09-22 | 1994-04-15 | Ngk Insulators Ltd | Manufacture of suspension type lightning arresting insulator and body of insulator |
| CN1178380A (en) * | 1996-09-27 | 1998-04-08 | 日本碍子株式会社 | Rotary cutter for shaping suspension insulator |
| CN108214826A (en) * | 2018-01-25 | 2018-06-29 | 许新东 | A kind of ceramic roller machine is breathed freely steel mold |
| CN112201418A (en) * | 2020-10-28 | 2021-01-08 | 中材江西电瓷电气有限公司 | Spinning forming equipment for disc-shaped suspension type porcelain insulator |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102485451B (en) * | 2010-12-03 | 2014-07-02 | 贵州建新南海科技股份有限公司 | Die pressing method and device for blank of porcelain insulator |
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2022
- 2022-05-06 CN CN202210532102.2A patent/CN114914040B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06103845A (en) * | 1992-09-22 | 1994-04-15 | Ngk Insulators Ltd | Manufacture of suspension type lightning arresting insulator and body of insulator |
| CN1178380A (en) * | 1996-09-27 | 1998-04-08 | 日本碍子株式会社 | Rotary cutter for shaping suspension insulator |
| CN108214826A (en) * | 2018-01-25 | 2018-06-29 | 许新东 | A kind of ceramic roller machine is breathed freely steel mold |
| CN112201418A (en) * | 2020-10-28 | 2021-01-08 | 中材江西电瓷电气有限公司 | Spinning forming equipment for disc-shaped suspension type porcelain insulator |
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| CN114914040A (en) | 2022-08-16 |
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