CN112477202B - Processing and manufacturing method of glass fiber reinforced plastic electric meter box - Google Patents
Processing and manufacturing method of glass fiber reinforced plastic electric meter box Download PDFInfo
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- CN112477202B CN112477202B CN202011218635.0A CN202011218635A CN112477202B CN 112477202 B CN112477202 B CN 112477202B CN 202011218635 A CN202011218635 A CN 202011218635A CN 112477202 B CN112477202 B CN 112477202B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/40—Shaping or impregnating by compression not applied
- B29C70/50—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC]
- B29C70/504—Shaping or impregnating by compression not applied for producing articles of indefinite length, e.g. prepregs, sheet moulding compounds [SMC] or cross moulding compounds [XMC] using rollers or pressure bands
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/06—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices
- B29B7/10—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary
- B29B7/12—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft
- B29B7/16—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type with movable mixing or kneading devices rotary with single shaft with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/02—Mixing; Kneading non-continuous, with mechanical mixing or kneading devices, i.e. batch type
- B29B7/22—Component parts, details or accessories; Auxiliary operations
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
- B29B7/7466—Combinations of similar mixers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/001—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore a shaping technique combined with cutting, e.g. in parts or slices combined with rearranging and joining the cut parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
- B29C69/004—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore making articles by joining parts moulded in separate cavities, said parts being in said separate cavities during said joining
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/545—Perforating, cutting or machining during or after moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/54—Component parts, details or accessories; Auxiliary operations, e.g. feeding or storage of prepregs or SMC after impregnation or during ageing
- B29C70/546—Measures for feeding or distributing the matrix material in the reinforcing structure
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/34—Electrical apparatus, e.g. sparking plugs or parts thereof
- B29L2031/3481—Housings or casings incorporating or embedding electric or electronic elements
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Moulding By Coating Moulds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to a processing and manufacturing method of a glass fiber reinforced plastic electricity meter box, which uses a sheet forming device, wherein the sheet forming device comprises a bottom plate, a shaping device, a connecting frame and a pressing device, wherein the shaping device is arranged at the upper end of the bottom plate, the pressing device is arranged at the upper end of the shaping device, and the pressing device is connected with the bottom plate through the connecting frame; the specific method for processing and manufacturing the glass fiber reinforced plastic electricity meter box by adopting the sheet forming equipment comprises the following steps: sheet forming, film cutting, curing, mould pressing and combination assembling. According to the sheet forming equipment, the forming work of the single sheet is completed together through the matching of the forming device and the pressing device, after the forming, only the redundant thin film is cut off, the sheet does not need to be cut, the processing difficulty is obviously reduced, and the pressing device can stir the resin paste and the glass fiber in the forming process, so that the distribution uniformity of the resin paste and the glass fiber is improved.
Description
Technical Field
The invention relates to the technical field of glass fiber reinforced plastic electric meter boxes, in particular to a processing and manufacturing method of a glass fiber reinforced plastic electric meter box.
Background
Glass fiber reinforced plastic is a reinforced plastic which is different from toughened glass and is prepared by reinforcing unsaturated polyester, epoxy resin and phenolic resin matrix by glass fiber and taking glass fiber or products thereof as reinforcing materials.
The glass fiber reinforced plastic is light and hard, non-conductive, stable in performance, high in mechanical strength, less in recycling and corrosion-resistant, and is commonly used as a manufacturing material of an electric meter box. The process of manufacturing the glass fiber reinforced plastic electric meter box comprises the step of manufacturing sheet molding compound (hereinafter referred to as sheet material), and the process has some problems:
(1) in order to ensure that the glass fibers can be uniformly distributed in the resin paste, the glass fibers are required to be deposited on the resin paste coated on the lower bearing film and covered with the bearing film, and then the upper bearing film, the lower bearing film, the resin paste and the glass fibers can be tightly pressed through a plurality of roller arrays arranged in a staggered manner, so that the whole production line is long, the input cost is high, and the treatment efficiency is low;
(1) after the resin paste and the glass fiber are uniformly mixed, a continuous sheet is prepared, before the sheet is put into use, the sheet needs to be cut into a proper size according to actual needs, the strength of the sheet is high, the cutting difficulty is high, the cutting work cannot be efficiently finished, in addition, in the cutting process, the friction force between a cutter and the glass fiber reinforced plastic sheet is large, the generated heat quantity is high, and the cutter loss is large.
In order to solve the problems, the invention provides a processing and manufacturing method of a glass fiber reinforced plastic electricity meter box.
Disclosure of Invention
In order to achieve the purpose, the invention adopts the following technical scheme to realize the purpose:
a glass fiber reinforced plastic electricity meter box processing and manufacturing method uses a sheet forming device which comprises a bottom plate, a shaping device, a connecting frame and a pressing device, wherein the shaping device is installed at the upper end of the bottom plate, the pressing device is arranged at the upper end of the shaping device, and the pressing device is connected with the bottom plate through the connecting frame; the specific method for processing and manufacturing the glass fiber reinforced plastic electricity meter box by adopting the sheet forming equipment comprises the following steps:
s1, sheet molding: the sheet forming equipment is matched with the existing traction equipment and laminating equipment to complete the sheet forming work, and the adjacent sheets are connected through an upper film and a lower film;
s2, cutting the film: cutting the upper and lower films connecting the adjacent sheets by the existing cutting equipment to prepare single sheets;
s3, curing: putting the sheet into a curing furnace for curing treatment so as to improve the strength of the sheet;
s4, mould pressing treatment: placing the sheet into a mold heated to 120-140 ℃ for mold pressing, opening the mold after reaching the pressure maintaining specified time, and obtaining a molded SMC veneer after demolding;
s5, combining and assembling: after the surface of the SMC veneer is trimmed, arranging a mounting hole at a specified position, and combining and assembling the SMC veneer with a rubber sealing strip and a stainless steel bracket to obtain a glass fiber reinforced plastic electricity meter box;
the shaping device comprises a support rod, a working table, a shaping die, a connecting rod and a lifting cylinder, wherein the working table is arranged at the upper end of the bottom plate through the support rod, the upper end of the working table is attached to the lower end of the shaping die, the connecting rod is arranged on the left side wall and the right side wall of the shaping die and connected with the telescopic end of the lifting cylinder, and the fixed end of the lifting cylinder is arranged on the bottom plate; after a lower film passes through a gap between the lower end of a shaping mold and the upper end of a workbench top by the conventional traction equipment, a mixed resin paste and glass fibers are put into the shaping mold by a pressing device, the resin paste and the glass fiber mixture can be tightly pressed on the lower film by the extrusion action of a pressing block and the shaping action of the shaping mold, the mixture is pressed into a square sheet with a proper size, after the pressing is finished, the shaping mold is driven by a lifting cylinder to move upwards, so that the shaping mold can be separated from the sheet, the lower film drives the sheet to move rightwards under the traction of the traction equipment, an upper film can be pressed on the upper end surface of the sheet by a film covering device, and then the lifting cylinder drives the shaping mold to return to the original height so as to continuously cooperate with the pressing device to finish the shaping work of the sheet.
The pressing device comprises a working box, a feeding pipe, an extrusion rod, an auxiliary mechanism and a pressing block, the working box is arranged on the side wall of the connecting frame, a plurality of material storage tanks are uniformly arranged in the working box from left to right, the material storage tanks are of cylindrical structures, feed inlets communicated with the material storage tanks are formed in the front sides of the material storage tanks, feed ports communicated with the material storage tanks are formed in the lower sides of the material storage tanks, feed pipes are arranged at the lower ends of the feed ports, the middle parts of the feed pipes are connected with auxiliary mechanisms arranged on the rear side of the working box, the lower ends of the feed pipes are slidably connected with the inner wall of the pressing block, the front and back of the side wall of each feed pipe are symmetrically provided with the pressing rods, one ends of the pressing rods, far away from the side wall of each feed pipe, are of inclined plane structures with gradually increased heights from inside to outside, the upper ends of the pressing blocks are connected with the telescopic ends of the driving cylinders through the mounting frame, and the fixed ends of the driving cylinders are arranged on the side wall of the working box;
an extrusion block is slidably mounted on the inner wall of the storage tank and can move up and down relative to the inner wall of the storage tank, a threaded hole is formed in the middle of the extrusion block, the inner wall of the threaded hole is in threaded connection with the side wall of a threaded rod, a stirring frame is mounted at the lower end of the threaded rod, and the left threaded rod and the right threaded rod which are adjacent are connected through a transmission mechanism; resin paste and glass fiber after will weighing through the feed inlet drop into the work box, under drive mechanism's transmission, the threaded rod rotates at the uniform velocity, stir resin paste and glass fiber with driving the stirring frame, drive the extrusion piece downstream simultaneously, extrude from the pay-off mouth with constantly mixing resin paste and glass fiber, the mixture of extruding falls on the film down through the conveying pipe, later drive the briquetting and move down through driving actuating cylinder, under the mating reaction of design mould, alright suppress the mixture into the square sheet of appropriate size, in-process that the mixture falls down from the conveying pipe, complementary unit can prevent the mixture adhesion on the conveying pipe inner wall, accelerate the falling speed of mixture simultaneously, reach the purpose that improves work efficiency.
Preferably, the shaping mold comprises a frame body, a first stripping-assisting piece and a second stripping-assisting piece, the frame body is arranged between two connecting rods which are oppositely arranged left and right, a plurality of first stripping-assisting pieces are uniformly arranged in the middle of the frame body from left to right, the first stripping-assisting pieces and the feeding pipe are arranged left and right at intervals, and the second stripping-assisting pieces are arranged on the left and right side walls and the front and rear inner side walls of the frame body;
the first stripping-assisting piece comprises an extrusion strip, a contact plate, plugging heads, sliding rods, a linkage rod and a transverse moving strip, wherein the extrusion strip is arranged on the inner wall of a frame body and is of a bilateral symmetry structure, the left side wall and the right side wall of the extrusion strip are both of inclined surface structures with gradually increasing heights from inside to outside, the contact plate is symmetrically arranged on the left side and the right side of the extrusion strip, a spring is connected between the contact plate and the extrusion strip, the contact plate and the extrusion strip can move up and down relatively, a plurality of vent holes are uniformly formed in the side wall of the contact plate, the upper end of the vent hole positioned at the uppermost part of the contact plate is communicated with the vent hole through a sliding groove, the plugging heads made of rubber materials are arranged in the vent holes in a sliding mode, the inner side of each plugging head is connected with one end of each sliding rod, the other end of each sliding rod is connected with the outer side wall of the contact plate, the inner side wall of the contact plate is tightly attached to the outer side wall of the extrusion strip, and the linkage rods which are arranged in the sliding grooves in a sliding mode, a spring is connected between the linkage rod and the inner wall of the sliding groove;
the second stripping-assisting piece has basically the same structure as the first stripping-assisting piece, and the difference is that only one side of the left side wall and the right side wall of the extrusion strip arranged in the second stripping-assisting piece is of an inclined plane structure with gradually increasing height from inside to outside, the other side of the left side wall and the right side wall is of a plane structure, and only one side of the extrusion strip, which is of the inclined plane, is provided with a contact plate through a spring and is tightly attached with a transverse moving strip.
When the lifting cylinder drives the shaping die to move upwards, the extrusion strips arranged on the inner wall of the frame body synchronously move upwards along with the frame body, and the contact plate tightly attached to the sheet cannot immediately synchronously move along with the extrusion strips under the action of the viscosity, so that the extrusion strips move upwards relative to the contact plate, the outward thrust generated by the extrusion strips and the transverse moving strips tightly attached to the extrusion strips is reduced, the transverse moving strips drive the sliding rods to move inwards under the action of the elasticity of the springs connecting the linkage rods and the sliding grooves, when the blocking heads move inwards to a proper distance along with the extrusion strips, the air inlet holes are communicated with the air holes, outside air enters gaps between the contact plates and the sheet through the air inlet holes and the air holes, under the isolation action of the air, the viscosity between the contact plates is reduced, the contact area between the contact plates is gradually reduced until the contact plates and the sheet are completely separated, and the separation difficulty of the contact plates and the sheet can be effectively reduced, the condition that the sheet is deformed due to pulling caused by forcibly separating the sheet from the paper is avoided, the shape integrity of the sheet is ensured, and the separating speed of the sheet and the paper is improved.
Preferably, the pressing block comprises a clip block, a blocking piece, a moving frame and a return spring, mounting grooves are symmetrically formed in the front side and the rear side of the clip block, the blocking piece is slidably mounted in the mounting groove, the lower end face of the blocking piece is flush with the lower end face of the clip block, a moving groove communicated with the mounting groove is formed in the upper end of the mounting groove, the moving frame is slidably mounted in the moving groove, the return spring is connected between the side wall of the moving frame and the inner wall of the moving groove, the lower end of the moving frame is connected with the upper end of the blocking piece, and the inner wall of the moving frame is an inclined plane structure with gradually increasing height from inside to outside; when driving actuating cylinder and driving back the type piece and move down, the outside thrust that the extrusion pole applyed to removing the frame reduces, under reset spring's elastic force effect, removes the frame and inwards contracts gradually for before returning the type piece and the contact of mixture, two separation blades of front and back mutual disposition can hug closely each other, return the type piece and form complete square structure with the separation blade jointly, consequently can not leave the indentation at the sheet middle part at the in-process that carries out the suppression to the mixture, guaranteed the suppression effect.
Preferably, the stirring frame comprises a stirring shaft, mounting rings and stirring rods, the stirring shaft is mounted at the lower end of the threaded rod, a plurality of mounting rings are slidably mounted on the side wall of the stirring shaft from top to bottom, adjacent mounting rings are connected through springs, and a plurality of stirring rods are uniformly mounted on the side wall of each mounting ring along the circumferential direction of the mounting ring; the (mixing) shaft can carry out synchronous rotation along with the threaded rod to drive the puddler and carry out the homogeneous mixing to glass fiber and resin paste, along with the gradual reduction of extrusion piece height, receive extrusion piece extruded puddler and also move down thereupon, can not lead to the fact the hindrance to the normal removal of extrusion piece, simultaneously because the high change of puddler, the stirring scope of puddler also changes thereupon, can reach the effect that improves the stirring comprehensiveness.
Preferably, the transmission mechanism comprises a driven belt wheel, a first transmission belt, a second transmission belt, a driving belt wheel, a transmission rod and a driving motor, the driven belt wheel is arranged at the upper end of the threaded rod, the left driven belt wheel and the right driven belt wheel which are adjacent are connected through the first transmission belt, one driven belt wheel is connected with the driving belt wheel which is positioned on the rear side of the driven belt wheel through the second transmission belt, the transmission belt is arranged at the lower end of the driving belt wheel, the transmission belt is connected with an output shaft at the upper end of the driving motor through a coupler, the driving motor is a bidirectional output motor, and the driving motor is arranged on the side wall of the working box through a motor base; the transmission mechanism can drive the threaded rods to synchronously rotate forwards and backwards, so that the extrusion blocks are driven to do vertical linear motion, and the stirring frame is driven to stir the resin paste and the glass fibers.
Preferably, the auxiliary mechanism comprises a rotating rod, a rotating cam, an air bag and a connecting pipe, the upper end of the rotating rod is connected with an output shaft at the lower end of the driving motor through a coupler, the rotating cam is mounted at the lower end of the rotating rod, the air bag is arranged on the front side of the rotating cam, and the air bag is connected with the feeding pipe through the connecting pipe; under driving action of the driving motor, the rotating cam rotates circumferentially, can intermittently extrude the air bag in the rotating process, gas continuously enters the feeding pipe and is finally discharged from the air holes under the connecting action of the connecting pipe, and gas discharged from the air holes can prevent mixture of resin paste and glass fiber from being adhered to the inner wall of the feeding pipe, so that the mixture can normally fall, and normal operation of follow-up work is guaranteed.
Preferably, a plurality of ring channels have evenly been seted up from last down on the conveying pipe lateral wall, and adjacent ring channel communicates each other from top to bottom, and a plurality of gas pockets that are linked together rather than have evenly been seted up along its circumference direction in the ring channel inboard, and the connector has been seted up at the lateral wall middle part behind the conveying pipe, and the connector is linked together with at least one ring channel, and the connector outside is connected with the connecting pipe.
The invention has the beneficial effects that:
1. according to the sheet forming equipment, the forming device and the pressing device are matched to jointly complete the forming work of the single sheet, after the forming, only the redundant thin film needs to be cut off, the sheet does not need to be cut, the processing difficulty is obviously reduced, and the pressing device can stir the resin paste and the glass fiber in the forming process, so that the distribution uniformity of the resin paste and the glass fiber is improved.
2. The forming device provided by the invention can press the mixture of the resin paste and the glass fiber on the lower film through the extrusion effect of the pressing block and the forming effect of the forming die, and the mixture is pressed into a discontinuous square sheet with a proper size, the sheet does not need to be cut in the subsequent processing process, the processing difficulty is reduced, in addition, the separation difficulty of the contact plate and the sheet is effectively reduced through the first stripping-assisting piece and the second stripping-assisting piece arranged in the forming die, the phenomenon that the sheet is pulled and deformed due to forced separation of the contact plate and the sheet is avoided, the shape integrity of the sheet is ensured, and the separation speed of the contact plate and the sheet is improved.
3. The pressing device provided by the invention drives the threaded rod to periodically rotate forwards and backwards through the transmission mechanism, drives the extrusion block to continuously extrude the mixture, simultaneously drives the stirring frame to uniformly stir the mixture, the extruded mixture falls on the lower film through the feeding pipe, the mixture is pressed into a square sheet with a proper size through the matching of the pressing block and the shaping die, and the auxiliary mechanism can prevent the mixture from being adhered to the inner wall of the feeding pipe in the falling process of the mixture from the feeding pipe, accelerate the falling speed of the mixture and achieve the purpose of improving the working efficiency.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of a method of the present invention;
FIG. 2 is a front view of the sheet forming apparatus of the present invention;
FIG. 3 is a perspective view of the sizing die of the present invention;
FIG. 4 is a top view of the sizing die of the present invention;
FIG. 5 is a front cross-sectional view of a portion of the structure of the sizing die of the present invention;
FIG. 6 is a right side view of the connecting frame of the present invention with the pressing device;
FIG. 7 is a front cross-sectional view of a press apparatus of the present invention;
FIG. 8 is a right side sectional view of a portion of the pressing apparatus of the present invention;
fig. 9 is an enlarged view of the portion of the invention in fig. 5 from direction a.
Detailed Description
The embodiments of the invention will be described in detail below with reference to the drawings, but the invention can be implemented in many different ways as defined and covered by the claims.
As shown in fig. 1 to 9, a method for processing and manufacturing a glass fiber reinforced plastic electricity meter box uses a sheet forming device, the sheet forming device comprises a bottom plate 1, a shaping device 2, a connecting frame 3 and a pressing device 4, the shaping device 2 is installed at the upper end of the bottom plate 1, the pressing device 4 is arranged at the upper end of the shaping device 2, and the pressing device 4 is connected with the bottom plate 1 through the connecting frame 3; the specific method for processing and manufacturing the glass fiber reinforced plastic electricity meter box by adopting the sheet forming equipment comprises the following steps:
s1, sheet forming: the sheet forming equipment is matched with the existing traction equipment and laminating equipment to complete the sheet forming work, and the adjacent sheets are connected through an upper film and a lower film;
s2, cutting the film: cutting the upper and lower films connecting the adjacent sheets by the existing cutting equipment to prepare single sheets;
s3, curing: putting the sheet into a curing furnace for curing treatment so as to improve the strength of the sheet;
s4, mould pressing treatment: placing the sheet into a mold heated to 120-140 ℃ for mold pressing, opening the mold after reaching the pressure maintaining specified time, and obtaining a molded SMC veneer after demolding;
s5, combining and assembling: after the surface of the SMC veneer is trimmed, arranging a mounting hole at a specified position, and combining and assembling the SMC veneer with a rubber sealing strip and a stainless steel bracket to obtain a glass fiber reinforced plastic electricity meter box;
the shaping device 2 comprises a support rod 21, a working table 22, a shaping mold 23, a connecting rod 24 and a lifting cylinder 25, wherein the working table 22 is arranged at the upper end of the bottom plate 1 through the support rod 21, the upper end of the working table 22 is attached to the lower end of the shaping mold 23, the connecting rod 24 is arranged on the left side wall and the right side wall of the shaping mold 23, the connecting rod 24 is connected with the telescopic end of the lifting cylinder 25, and the fixed end of the lifting cylinder 25 is arranged on the bottom plate 1; after a lower film passes through a gap between the lower end of a shaping mold 23 and the upper end of a worktable 22 through the existing traction equipment, a pressing device 4 puts mixed resin paste and glass fibers into the shaping mold 23, the mixture of the resin paste and the glass fibers can be tightly pressed on the lower film through the extrusion effect of a pressing block 45 and the shaping effect of the shaping mold 23, the mixture is pressed into a square sheet with a proper size, after the pressing is finished, the shaping mold 23 is driven to move upwards through a lifting cylinder 25, so that the shaping mold 23 can be separated from the sheet, the lower film drives the sheet to move rightwards under the traction of the traction equipment, a film covering device can press an upper film on the upper end face of the sheet, and then the shaping mold 23 is driven to return to the original height through the lifting cylinder 25, so that the shaping work of the sheet can be finished by continuously matching with the pressing device 4.
The shaping mold 23 comprises a frame 231, a first stripping-assisting part 232 and a second stripping-assisting part 233, the frame 231 is arranged between the two connecting rods 24 which are oppositely arranged left and right, the middle part of the frame 231 is uniformly provided with a plurality of first stripping-assisting parts 232 from left to right, the first stripping-assisting parts 232 and the feeding pipe 42 are arranged left and right alternately, and the second stripping-assisting parts 233 are arranged on the left and right inner side walls and the front and back inner side walls of the frame 231;
the first release assisting piece 232 comprises an extrusion strip 232a, a contact plate 232b, a blocking head 232c, a sliding rod 232d, a linkage rod 232e and a transverse moving strip 232f, the extrusion strip 232a is installed on the inner wall of the frame 231, the extrusion strip 232a is of a bilateral symmetry structure, the left side wall and the right side wall of the extrusion strip 232a are of an inclined surface structure with gradually increased height from inside to outside, the contact plate 232b is symmetrically arranged on the left side and the right side of the extrusion strip 232a, a spring is connected between the contact plate 232b and the extrusion strip 232a, the contact plate 232b and the extrusion strip 232a can move up and down relatively, a plurality of vent holes are uniformly formed in the side wall of the contact plate 232b, the upper end of each vent hole positioned at the uppermost part of the contact plate 232b is provided with a vent hole communicated with the vent hole, the blocking head 232c made of rubber is installed in the vent hole in a sliding mode, and the inner side of the blocking head 232c is connected with one end of the sliding rod 232d, the other end of the sliding rod 232d is connected with the outer side wall of the contact plate 232b, the inner side wall of the contact plate 232b is tightly attached to the outer side wall of the extrusion strip 232a, the vertically adjacent sliding rods 232d are connected through a linkage rod 232e which is slidably arranged in the sliding groove, and a spring is connected between the linkage rod 232e and the inner wall of the sliding groove;
the second release-assisting element 233 has substantially the same structure as the first release-assisting element 232, and is different therefrom only in that only one of the left and right side walls of the pressing strip 232a provided in the second release-assisting element 233 has a slope structure whose height gradually increases from the inside to the outside, and the other side thereof has a plane structure, and only one side of the pressing strip 232a, which is a slope, is provided with a contact plate 232b through a spring and is closely attached with a lateral moving strip 232 f.
When the lifting cylinder 25 drives the shaping mold 23 to move upwards, the extrusion strip 232a mounted on the inner wall of the frame 231 moves upwards synchronously with the frame 231, and the contact plate 232b attached to the sheet cannot move synchronously with the extrusion strip 232a immediately under the action of the viscosity, so that the extrusion strip 232a moves upwards relative to the contact plate 232b, the outward thrust generated by the extrusion strip 232a and the traverse strip 232f attached to the extrusion strip 232a is reduced, the traverse strip 232f drives the sliding rod 232d to move inwards under the action of the elasticity of the spring connecting the linkage rod 232e and the sliding groove, when the plugging head 232c moves inwards to a proper distance, after the air inlet hole can be communicated with the vent hole, the outside air enters the gap between the contact plate 232b and the sheet through the air inlet hole and the vent hole, and the viscosity between the contact plate 232b and the sheet is reduced under the isolation action of the air, contact area between contact plate 232b and the sheet reduces gradually, and until the two separates completely, can effectively reduce the separation degree of difficulty of contact plate 232b and sheet, avoid forcing the two to separate and lead to the sheet to receive to drag and the condition emergence of warping, both guaranteed the integrity of sheet shape, improved the separation speed of the two again.
The pressing device 4 comprises a working box 41, a feeding pipe 42, an extrusion rod 43, an auxiliary mechanism 44, a pressing block 45, an installation frame 46, a driving cylinder 47, an extrusion block 48, a threaded rod 49, a stirring frame 410 and a transmission mechanism 411, wherein the working box 41 is installed on the side wall of the connection frame 3, a plurality of material storage tanks are uniformly arranged inside the working box 41 from left to right, each material storage tank is of a cylindrical structure, a feeding hole communicated with the material storage tank is formed in the front side of the material storage tank, a feeding hole communicated with the material storage tank is formed in the lower side of the material storage tank, the feeding pipe 42 is installed at the lower end of the feeding hole, the middle of the feeding pipe 42 is connected with the auxiliary mechanism 44 installed at the rear side of the working box 41, the lower end of the feeding pipe 42 is connected with the inner wall of the pressing block 45 in a sliding manner, the extrusion rod 43 is symmetrically installed on the front and back of the side wall of the feeding pipe 42, one end, far away from the side wall of the extrusion rod 43, is of an inclined plane structure with gradually increasing height from inside to outside, the upper end of the pressing block 45 is connected with the telescopic end of the driving cylinder 47 through the installation frame 46, the fixed end of the driving cylinder 47 is arranged on the side wall of the working box 41;
an extrusion block 48 is slidably mounted on the inner wall of the storage tank, the extrusion block 48 can move up and down relative to the inner wall of the storage tank, a threaded hole is formed in the middle of the extrusion block 48, the inner wall of the threaded hole is in threaded connection with the side wall of a threaded rod 49, a stirring frame 410 is mounted at the lower end of the threaded rod 49, and the left threaded rod 49 and the right threaded rod 49 which are adjacent are connected through a transmission mechanism 411; the weighed resin paste and the glass fibers are put into the working box 41 through the feeding hole, under the transmission action of the transmission mechanism 411, the threaded rod 49 rotates at a constant speed to drive the stirring frame 410 to stir the resin paste and the glass fibers, and simultaneously drive the extrusion block 48 to move downwards to continuously extrude the mixed resin paste and the glass fibers from the feeding hole, the extruded mixture falls on a lower film through the feeding pipe 42, then the extrusion block 45 is driven to move downwards through the driving air cylinder 47, under the matching action of the shaping mold 23, the mixture can be pressed into a square sheet with a proper size, in the process that the mixture falls down from the feeding pipe 42, the auxiliary mechanism 44 can prevent the mixture from being adhered to the inner wall of the feeding pipe 42, meanwhile, the falling speed of the mixture is accelerated, and the purpose of improving the working efficiency is achieved.
The auxiliary mechanism 44 comprises a rotating rod 441, a rotating cam 442, an air bag 443 and a connecting pipe 444, the upper end of the rotating rod 441 is connected with an output shaft at the lower end of a driving motor 4116 through a coupling, the rotating cam 442 is installed at the lower end of the rotating rod 441, the air bag 443 is arranged at the front side of the rotating cam 442, and the air bag 443 is connected with the feeding pipe 42 through the connecting pipe 444; under the driving action of driving motor 4116, rotating cam 442 performs circumferential rotation, and in the rotation process, rotating cam 442 can extrude gasbag 443 intermittently, and under the connecting action of connecting pipe 444, gas constantly gets into in the conveying pipe 42 and finally discharges from the gas pocket, and gas discharging from the gas pocket can prevent that resin paste and glass fiber's mixture from adhering on the conveying pipe 42 inner wall for the mixture can normally fall, has guaranteed the normal clear of follow-up work.
A plurality of ring channels have evenly been seted up from last down on the conveying pipe 42 lateral wall, and adjacent ring channel from top to bottom communicates each other, and a plurality of gas pockets that are linked together rather than have evenly been seted up along its circumferential direction to the ring channel inboard, and the connector has been seted up at conveying pipe 42 back lateral wall middle part, and the connector is linked together with at least one ring channel, and the connector outside is connected with connecting pipe 444.
The pressing block 45 comprises a shaping block 451, a blocking piece 452, a moving frame 453 and a return spring 454, mounting grooves are symmetrically formed in the front side and the rear side of the shaping block 451, the blocking piece 452 is slidably mounted in the mounting grooves, the lower end face of the blocking piece 452 is flush with the lower end face of the shaping block 451, a moving groove communicated with the mounting grooves is formed in the upper end of the mounting grooves, the moving frame 453 is slidably mounted in the moving groove, the return spring 454 is connected between the side wall of the moving frame 453 and the inner wall of the moving groove, the lower end of the moving frame 453 is connected with the upper end of the blocking piece 452, and the inner wall of the moving frame 453 is of a slope structure with the height gradually increasing from inside to outside; when the driving cylinder 47 drives the returning block 451 to move downwards, the outward thrust applied by the extrusion rod 43 to the moving frame 453 is reduced, the moving frame 453 retracts inwards gradually under the elastic action of the return spring 454, so that two blocking pieces 452 oppositely arranged front and back can be tightly attached to each other before the returning block is contacted with a mixed material, the returning block 451 and the blocking pieces 452 jointly form a complete square structure, and therefore, an indentation cannot be left in the middle of a sheet in the process of pressing the mixed material, and the pressing effect is guaranteed.
The stirring frame 410 comprises a stirring shaft 4101, mounting rings 4102 and stirring rods 4103, wherein the stirring shaft 4101 is arranged at the lower end of the threaded rod 49, a plurality of mounting rings 4102 are arranged on the side wall of the stirring shaft 4101 in a sliding manner from top to bottom, the adjacent mounting rings 4102 are connected through springs, and a plurality of stirring rods 4103 are uniformly arranged on the side wall of each mounting ring 4102 along the circumferential direction; the stirring shaft 4101 can synchronously rotate along with the threaded rod 49 to drive the stirring rod 4103 to uniformly mix the glass fiber and the resin paste, along with the gradual reduction of the height of the extrusion block 48, the stirring rod 4103 extruded by the extrusion block 48 also moves downwards along with the gradual reduction of the height of the extrusion block 48, so that the normal movement of the extrusion block 48 cannot be hindered, and meanwhile, due to the change of the height of the stirring rod 4103, the stirring range of the stirring rod 4103 also changes along with the gradual reduction of the height of the stirring rod 4103, so that the effect of improving the stirring comprehensiveness can be achieved.
The transmission mechanism 411 comprises a driven belt wheel 4111, a first transmission belt 4112, a second transmission belt 4113, a driving belt wheel 4114, a transmission rod 4115 and a driving motor 4116, wherein the driven belt wheel 4111 is installed at the upper end of a threaded rod 49, the left driven belt wheel 4111 and the right driven belt wheel 4111 which are adjacent are connected through the first transmission belt 4112, one driven belt wheel 4111 is connected with the driving belt wheel 4114 which is located on the rear side of the driven belt wheel 4113, the lower end of the driving belt wheel 4114 is provided with the transmission belt, the transmission belt is connected with an output shaft at the upper end of the driving motor 4116 through a coupler, the driving motor 4116 is a bidirectional output motor, and the driving motor 4116 is installed on the side wall of the work box 41 through a motor base; the transmission mechanism 411 can drive the plurality of threaded rods 49 to synchronously rotate forwards and backwards, so as to drive the extrusion block 48 to do linear motion up and down, and drive the stirring frame 410 to stir the resin paste and the glass fibers.
The present invention is not limited to the above-described embodiments, which are described in the specification and illustrated only to illustrate the principle of the present invention, but various changes and modifications may be made within the scope of the present invention as claimed without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A glass fiber reinforced plastic electricity meter box processing and manufacturing method uses a sheet forming device, the sheet forming device comprises a bottom plate, a shaping device, a connecting frame and a pressing device, the shaping device is mounted at the upper end of the bottom plate, the pressing device is arranged at the upper end of the shaping device, and the pressing device is connected with the bottom plate through the connecting frame; the method is characterized in that: the specific method for processing and manufacturing the glass fiber reinforced plastic electricity meter box by adopting the sheet forming equipment comprises the following steps:
s1, sheet forming: the sheet forming equipment is matched with the existing traction equipment and laminating equipment to complete the sheet forming work, and the adjacent sheets are connected through an upper film and a lower film;
s2, cutting the film: cutting the upper and lower films connecting the adjacent sheets by the existing cutting equipment to prepare single sheets;
s3, curing: putting the sheet into a curing furnace for curing treatment so as to improve the strength of the sheet;
s4, mould pressing treatment: placing the sheet into a mold heated to 120-140 ℃ for mold pressing, opening the mold after reaching the pressure maintaining specified time, and demolding to obtain a molded SMC veneer;
s5, combining and assembling: after the surface of the SMC veneer is trimmed, arranging a mounting hole at a specified position, and combining and assembling the SMC veneer with a rubber sealing strip and a stainless steel bracket to obtain a glass fiber reinforced plastic electricity meter box;
the shaping device comprises a supporting rod, a working table, a shaping mold, a connecting rod and a lifting cylinder, wherein the working table is arranged at the upper end of the bottom plate through the supporting rod, the upper end of the working table is attached to the lower end of the shaping mold, the connecting rod is arranged on the left side wall and the right side wall of the shaping mold and connected with the telescopic end of the lifting cylinder, and the fixed end of the lifting cylinder is arranged on the bottom plate;
the pressing device comprises a working box, a feeding pipe, an extrusion rod, an auxiliary mechanism and a pressing block, the working box is arranged on the side wall of the connecting frame, a plurality of material storage tanks are uniformly arranged in the working box from left to right, the material storage tanks are of cylindrical structures, feed inlets communicated with the material storage tanks are formed in the front sides of the material storage tanks, feed ports communicated with the material storage tanks are formed in the lower sides of the material storage tanks, feed pipes are arranged at the lower ends of the feed ports, the middle parts of the feed pipes are connected with auxiliary mechanisms arranged on the rear side of the working box, the lower ends of the feed pipes are connected with the inner wall of the pressing block in a sliding mode, the front and the rear of the side wall of each feed pipe are symmetrically provided with the pressing rods, one ends of the pressing rods, far away from the side wall of each feed pipe, are of inclined plane structures with gradually increased heights from inside to outside, the upper ends of the pressing blocks are connected with the telescopic ends of the driving cylinders through the connecting frame, and the fixed ends of the driving cylinders are arranged on the side wall of the working box;
an extrusion block is slidably mounted on the inner wall of the storage tank and can move up and down relative to the inner wall of the storage tank, a threaded hole is formed in the middle of the extrusion block, the inner wall of the threaded hole is in threaded connection with the side wall of a threaded rod, a stirring frame is mounted at the lower end of the threaded rod, and the left threaded rod and the right threaded rod which are adjacent are connected through a transmission mechanism;
the shaping mold comprises a frame body, a first stripping-assisting piece and a second stripping-assisting piece, the frame body is arranged between two connecting rods which are oppositely arranged left and right, a plurality of first stripping-assisting pieces are uniformly arranged in the middle of the frame body from left to right, the first stripping-assisting pieces and the feeding pipe are arranged left and right at intervals, and the second stripping-assisting pieces are arranged on the left and right side walls and the front and rear inner side walls of the frame body;
the first stripping-assisting piece comprises an extrusion strip, a contact plate, plugging heads, a sliding rod, a linkage rod and a transverse moving strip, wherein the extrusion strip is arranged on the inner wall of a frame body, the extrusion strip is of a bilateral symmetry structure, the left side wall and the right side wall of the extrusion strip are both of inclined plane structures with gradually increasing heights from inside to outside, the contact plate is symmetrically arranged on the left side and the right side of the extrusion strip, the contact plate is arranged on the inner wall of the frame body, a spring is connected between the contact plate and the extrusion strip, the contact plate and the extrusion strip can move up and down relatively, a plurality of vent holes are uniformly formed in the side wall of the contact plate, the vertically adjacent vent holes are communicated through a sliding groove, the upper end of the vent hole positioned at the uppermost part of the contact plate is provided with an air inlet hole communicated with the contact plate, a rubber plugging head is arranged in the vent hole in a sliding mode, the inner side of the plugging head is connected with one end of the sliding rod, the other end of the sliding rod is connected with the outer side wall of the contact plate, and the inner side wall of the contact plate is tightly attached to the outer side wall of the extrusion strip, the upper and lower adjacent sliding rods are connected through a linkage rod which is arranged in the sliding groove in a sliding mode, and a spring is connected between the linkage rod and the inner wall of the sliding groove;
the second stripping-assisting piece is basically the same as the first stripping-assisting piece in structure, and is only characterized in that only one side of the left side wall and the right side wall of an extrusion strip arranged in the second stripping-assisting piece is of an inclined surface structure with gradually increasing height from inside to outside, the other side of the left side wall and the right side wall is of a plane structure, and only one side of the extrusion strip, which is of an inclined surface, is provided with a contact plate through a spring and is tightly attached with a transverse moving strip.
2. The processing and manufacturing method of the glass fiber reinforced plastic electricity meter box according to claim 1, characterized in that: the briquetting is including returning type piece, the separation blade, remove frame and reset spring, the mounting groove has been seted up to bilateral symmetry around returning the type piece, slidable mounting has the separation blade in the mounting groove, terminal surface and the type piece looks parallel and level down under the separation blade, the mounting groove upper end is provided with rather than communicating shifting chute, slidable mounting has the removal frame in the shifting chute, be connected with reset spring between removal frame lateral wall and the shifting chute inner wall, it is connected with the separation blade upper end to remove the frame lower extreme, it is from inside to outside the gradually crescent inclined plane structure of height to remove the frame inner wall.
3. The processing and manufacturing method of the glass fiber reinforced plastic electricity meter box according to claim 1, characterized in that: the stirring frame comprises a stirring shaft, mounting rings and stirring rods, wherein the stirring shaft is arranged at the lower end of the threaded rod, a plurality of mounting rings are arranged on the side wall of the stirring shaft from top to bottom in a sliding manner, adjacent mounting rings are connected through springs, and a plurality of stirring rods are uniformly arranged on the side wall of each mounting ring along the circumferential direction of the side wall of the mounting ring.
4. The processing and manufacturing method of the glass fiber reinforced plastic electricity meter box according to claim 1, characterized in that: the transmission mechanism comprises a driven belt wheel, a first transmission belt, a second transmission belt, a driving belt wheel, a transmission rod and a driving motor, wherein the driven belt wheel is arranged at the upper end of the threaded rod, the left and right adjacent driven belt wheels are connected through the first transmission belt, one driven belt wheel is connected with the driving belt wheel positioned at the rear side of the driven belt wheel through the second transmission belt, the transmission belt is arranged at the lower end of the driving belt wheel, the transmission belt is connected with an output shaft at the upper end of the driving motor through a coupler, the driving motor is a bidirectional output motor, and the driving motor is arranged on the side wall of the working box through a motor base.
5. The processing and manufacturing method of the glass fiber reinforced plastic electricity meter box according to claim 4, characterized in that: the auxiliary mechanism comprises a rotating rod, a rotating cam, an air bag and a connecting pipe, the upper end of the rotating rod is connected with an output shaft at the lower end of the driving motor through a coupler, the rotating cam is installed at the lower end of the rotating rod, the air bag is arranged on the front side of the rotating cam, and the air bag is connected with the feeding pipe through the connecting pipe.
6. The processing and manufacturing method of the glass fiber reinforced plastic electricity meter box according to claim 5, characterized in that: a plurality of ring channels are evenly arranged on the side wall of the feeding pipe from top to bottom, the ring channels which are adjacent from top to bottom are communicated with each other, a plurality of air holes communicated with the ring channels are evenly arranged on the inner side of each ring channel along the circumferential direction of the ring channel, a connector is arranged in the middle of the rear side wall of the feeding pipe and is communicated with at least one ring channel, and the outer side of the connector is connected with a connecting pipe.
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| CN202011218635.0A CN112477202B (en) | 2020-11-04 | 2020-11-04 | Processing and manufacturing method of glass fiber reinforced plastic electric meter box |
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| CN201344943Y (en) * | 2008-12-11 | 2009-11-11 | 天津市正方工业有限公司 | Combined-type all-isolated glass fiber reinforced plastic electricity meter box |
| CN206406471U (en) * | 2016-11-07 | 2017-08-15 | 王浩 | A kind of continuously shaped equipment of fiberglass |
| CN110154420A (en) * | 2019-07-09 | 2019-08-23 | 邵阳千两新型环保建材有限公司 | A kind of glass toughening manure pit cylinder production method |
| CN210190866U (en) * | 2019-06-10 | 2020-03-27 | 湖州凯达包装印刷股份有限公司 | Automatic device that adds of packaging press printing ink |
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2020
- 2020-11-04 CN CN202011218635.0A patent/CN112477202B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201344943Y (en) * | 2008-12-11 | 2009-11-11 | 天津市正方工业有限公司 | Combined-type all-isolated glass fiber reinforced plastic electricity meter box |
| CN206406471U (en) * | 2016-11-07 | 2017-08-15 | 王浩 | A kind of continuously shaped equipment of fiberglass |
| CN210190866U (en) * | 2019-06-10 | 2020-03-27 | 湖州凯达包装印刷股份有限公司 | Automatic device that adds of packaging press printing ink |
| CN110154420A (en) * | 2019-07-09 | 2019-08-23 | 邵阳千两新型环保建材有限公司 | A kind of glass toughening manure pit cylinder production method |
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Effective date of registration: 20220609 Address after: 223900 north of Shanghu road and east of Songshan Road, Changsi Industrial Park, Sihong County, Suqian City, Jiangsu Province Applicant after: JIANGSU YUETENG ELECTRIC Co.,Ltd. Address before: 314416 industrial functional zone, Yuanhua Town, Haining City, Jiaxing City, Zhejiang Province Applicant before: Fu Xinyi |
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