CN201240034Y

CN201240034Y - Composite long rod insulator injection molding machine

Info

Publication number: CN201240034Y
Application number: CNU200820118300XU
Authority: CN
Inventors: 白玉成
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-05-29
Filing date: 2008-05-29
Publication date: 2009-05-20
Anticipated expiration: 2018-05-29

Abstract

The utility model discloses an injection moulding machine for a composite long rod insulator which comprises a hydraulic moulding machine, a hydraulic system, more than two rubber injection machines, a mould comprising an upper mould, a lower mould, a plurality of core rod positioning devices, a core rod tensioning device and a glue injecting nozzle which can be matched into a whole mould, a temperature controlling device, an automatic control system and a device for controlling piston rods to move synchronously. The hydraulic system is provided with a plurality of oil cylinders; the lower ends of the piston rods are fixed on an identical slide block; and the core rod positioning devices are uniformly and symmetrically distributed in a hollow cavity formed by the upper mould and the lower mould, and comprise positioning ejector rods with racks, gears meshed with the racks of the positioning ejector rods and connecting lever spanners fixed with a gear shaft. The utility model can realize the single-forming of a composite long rod-shaped insulator and uniform extrusion pressure of core rods, thereby greatly improving the quality and the service life of the composite long rod insulator, reducing the rejection rate during the production, reducing the leftovers, saving the raw materials, greatly improving the production efficiency, and reducing the production cost. Furthermore, the injection moulding machine is easy to clean.

Description

Composite long rod insulator injection molding machine

One, technical field:

The utility model relates to a kind of production equipment of high pressure composite long rod insulator, relates in particular to the injection (mo(u)lding) machine of high pressure composite long rod insulator.

Two, background technology:

Because long plug is difficult for the location in mould, in the process of HTHP injection colloidal silica, be easy to distortion, so, the composite insulator injection (mo(u)lding) machine that uses both at home and abroad has only an injector at present, mould is very short, the length of per injection moulding is very short, can't finish the once-forming of long rod insulator, can only carry out stage injection and be shaped.Stage injection is shaped, because injection pressure is very big, be easy to the silica gel extruding dislocation that vulcanizates previously, cause the glue and the gluing of plug that vulcanizate previously a bit of bone phenomenon of taking off to occur with face, perhaps phenomenons such as circumferential weld, dislocation or umbrella distortion appear in every section joint, the position of taking off bone, circumferential weld can produce partial discharge phenomenon when high voltage moves, the long-time running meeting makes the insulator brittle failure, dislocation or umbrella distortion are then because the insufficient strength of local full skirt, long-time running also can make the insulator brittle failure, and above-mentioned several situations have all reduced the service life of insulator.Stage injection technology owing to squeeze pressure, has reduced the quality and the quality of product, and product is short service life, causes large-area power-cuts, brings about great losses to the country and people.Stage injection is time-consuming, and production efficiency is low, has increased leftover bits and pieces, has wasted raw material, has increased production cost of products.And the Jiao Dao in the injection (mo(u)lding) machine adopts vertical Jiao Dao, solation guidance tape of following connection of vertical Jiao Dao, and the solation road on the solation guidance tape and the position of the full skirt die cavity on the mould are complementary, and its manufacture craft requires high, and making is complicated, the cost height; And Jiao Dao is long, and the silica gel amount that is trapped in the glue road is big, and easy to clean is not wasted a large amount of silica gel.

Three, summary of the invention

The utility model solves the above-mentioned problems in the prior art exactly, and a kind of composite long rod insulator injection molding machine that the shot of high pressure grade composite long rod insulator can be shaped is provided.

For addressing the above problem, the technical solution of the utility model is: a kind of composite long rod insulator injection molding machine, and it comprises that hydraulic forming machine, hydraulic system, the vertical or level more than two are installed in the device that rubber injection machine, mould, temperature regulating device, automatic control system and the control piston bar of hydraulic forming machine one side are synchronized with the movement; Upper bracket is arranged at hydraulic forming machine top, lower carriage is arranged at the bottom, be fixed with a plurality of oil cylinders of hydraulic system on the upper bracket, the lower end of piston rod all is fixed on the same slide block, and the lower end of slide block is fixed with heating plate, and the lower end of last heating plate is fixed with patrix, the upper end of lower carriage is fixed with base, the upper end of base is fixed with down heating plate, and the upper end of following heating plate is fixed with counterdie, and oil cylinder is connected the hydraulic power unit of hydraulic system with switch by oil pipe; Mould comprises and can become the upper die and lower die of a unitary mould, a plurality of mandrel positioning device, plug take-up device and adhesive pouring nozzle by matched moulds; Its center is plug and full skirt die cavity behind the upper die and lower die matched moulds; Mandrel positioning device is distributed in the cavity of upper die and lower die symmetrically, it comprises the positioning mandril of being with tooth bar, the gear that is meshed with the tooth bar of positioning mandril and the connecting lever spanner of fixing with gear shaft, positioning mandril, gear and gear shaft place in the cavity of patrix or counterdie, the front end of positioning mandril is the circular arc that is complementary with plug, and the positioning mandril of symmetry holds out against the upper and lower side at plug respectively when injection; On the edge of upper and lower mould, be fixed with the locating piece of connecting lever spanner, have two locating holes of connecting lever spanner on the locating piece; The spacing distance that adhesive pouring nozzle requires according to injection glue amount is distributed in the front end or the rear end of patrix or counterdie, adhesive pouring nozzle connects plug and full skirt die cavity by the Jiao Dao of patrix or counterdie surface cross direction profiles, and the plug take-up device that is connected two ends, the plug left and right sides is fixed on the two ends of hydraulic forming machine; Every rubber injection machine has a plurality of injection-tube outlets, and each outlet of injection-tube is all by the adhesive pouring nozzle on the mould of pipeline connection correspondence; Injection-tube has temperature regulating device outward; Hydraulic forming machine top is fixed on the lower carriage of hydraulic forming machine bottom by shore supports.

Above-mentioned described plug take-up device is the mechanical type take-up device, it is made up of spline housing, splined shaft, handwheel, handwheel positioning sleeve, bearing gland, bearing block and the pressure bearing of casing, casing inner end maintenance, the outer end of splined shaft has screw thread, female handwheel is threaded in the threaded portion of splined shaft, handwheel is fixed on the casing outer end by handwheel positioning sleeve, bearing gland, bearing block and pressure bearing, and the inner end of splined shaft is connected on the plug by gold utensil.

Above-mentioned described plug take-up device is the fluid pressure type take-up device, and the piston rod of fluid pressure type take-up device is connected on the plug by gold utensil.

Above-mentioned described temperature regulating device is included in the pipeline that the injection-tube periphery is wrapped with, liquid and the liquid heating in the pipeline, and the inlet of liquid heating and liquid outlet are sealedly connected on the liquid outlet and inlet on the pipeline by liquid line.Reconcile the fluid temperature in the pipeline, can guarantee the temperature of injection-tube, so that better inject silica gel.

Be fixed with heat-insulation layer respectively on the front and rear end of above-mentioned described counterdie, following heating plate and base, to save energy.

The device that above-mentioned described control piston bar is synchronized with the movement comprises tooth bar, gear and is connected axis, connects axis and is fixed on the slide block by bearing block, and its left and right end portions is overlapped inherent gear respectively, and corresponding upper bracket of gear and base between be fixed with tooth bar.

Because the utility model has increased mandrel positioning device in mould, make plug in the process of injection silica gel, hold up the plug location, under the squeeze pressure and temperature of injection silica gel, not redeformation of plug, the quality requirement that has met insulator fully, and after injection is finished, before high-temperature shaping, fall back on during the mandrel positioning device postscript in the cavity of mould, because silica gel also is in flow regime, before vulcanization forming, the timely levelling mandrel positioning device of silica gel energy is positioned at the position of plug and full skirt die cavity, makes the insulator silica gel cluster parachute of moulding even, do not have omission, quality is good.So the utility model can design a plurality of adhesive pouring nozzles, many injector can realize making the once-forming of whole composite long rod insulator composite long rod insulator segment no longer occur and take off bone, and phenomenons such as circumferential weld, dislocation or umbrella distortion no longer appear in the joint.Improve the quality and the life-span of composite long rod insulator greatly, greatly reduced the percent defective in the production process, reduced leftover bits and pieces, saved raw material.The production time of producing a composite long rod insulator has been saved in shot moulding, has improved production efficiency greatly, has saved manually, has reduced production cost.Glue road cross direction profiles in the mould of the present utility model, and be distributed in the surface of patrix or counterdie, so, easy to clean, the product one-shot forming, a product also only needs cleaning once, has saved artificial widely.The device that the control piston bar is synchronized with the movement is forced each piston rod synchronous operation, makes slide block always keep level in the bottom surface in the process of operation, makes the squeeze pressure of plug even.

Four, description of drawings

Below in conjunction with accompanying drawing, the utility model is described in further detail:

Fig. 1 is a front view of the present utility model;

Fig. 2 is a rearview of the present utility model;

Fig. 3 is a left view of the present utility model;

Fig. 4 is the structural representation of counterdie in the utility model;

Fig. 5 looks cutaway view for a mandrel positioning device left side in the utility model;

Fig. 6 is the AA cutaway view of Fig. 4;

Fig. 7 looks cutaway view for the master of take-up device in the utility model.

Five, the specific embodiment

As Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6 and shown in Figure 7, present embodiment comprises that hydraulic forming machine, hydraulic system, the level more than two are installed in the device that the rubber injection machine 12 of hydraulic forming machine front, mould, temperature regulating device, automatic control system and control piston bar are synchronized with the movement.Upper bracket 2 is arranged at hydraulic forming machine top, lower carriage 11 is arranged at the bottom, evenly be fixed with a plurality of oil cylinders 1 of hydraulic system on the upper bracket 2, the lower end of piston rod 4 all is fixed on the same slide block 5, between slide block 5 and the last heating plate 6, between base 10 and the following heating plate 9 one deck heat-insulation layer is arranged respectively.The lower end of slide block 5 is fixed with heating plate 6, the lower end of last heating plate 6 is fixed with patrix 30, and the upper end of lower carriage 11 is fixed with base 10, and the upper end of base 10 is fixed with down heating plate 9, the upper end of following heating plate 9 is fixed with counterdie 14, and oil cylinder 1 is connected the hydraulic power unit of hydraulic system with switch by oil pipe.Mould comprises that the energy matched moulds becomes patrix 30, counterdie 14, a plurality of mandrel positioning device, plug take-up device and the adhesive pouring nozzle 15 of a unitary mould; Its center is plug and full skirt die cavity 20 behind patrix 30 and counterdie 14 matched moulds.Mandrel positioning device is distributed in the cavity of the patrix 30 of mould and counterdie 14 symmetrically, it comprises the positioning mandril 21 of being with tooth bar, the gear 24 that is meshed with the tooth bar of positioning mandril 21 and the connecting lever spanner of fixing with gear shaft 22 23, positioning mandril 21, gear 24 and gear shaft 22 place in the cavity of patrix 30 or counterdie 14, the front end of positioning mandril 21 is the circular arc that is complementary with plug, and the positioning mandril 21 of symmetry holds out against the upper and lower side at plug respectively when injection.On the edge of upper and

lower mould

30,14, be fixed with the locating piece 31 of connecting lever spanner 23, have two locating holes 17,18 of connecting lever spanner 23 on the locating piece 31.The spacing distance that adhesive pouring nozzle 15 requires according to injection glue amount is distributed in the rear end of counterdie 14, and adhesive pouring nozzle 15 connects plug and full skirt die cavity 20 by the glue road 35 of counterdie surface cross direction profiles.The outlet of every rubber injection machine 12 connects an injection-tube 32, and an end of injection-tube 32 corresponding moulds has a plurality of injection-tube outlets, and each injection-tube outlet is all by the adhesive pouring nozzle 15 on the mould of pipeline connection correspondence.Temperature regulating device is arranged outside the injection-tube 32, temperature regulating device is included in the pipeline 13 that injection-tube 32 peripheries are wrapped with, liquid and the liquid heating in the pipeline 13, and the inlet of liquid heating and liquid outlet are sealedly connected on the liquid outlet and inlet on the pipeline 13 by liquid line.Plug take-up device 7 is for being connected the mechanical type take-up device that the plug two ends connect, it is made up of spline housing 33, splined shaft 29, handwheel 25, handwheel positioning sleeve 26, bearing gland 36, bearing block 19 and the pressure bearing 27 of casing 28, casing 28 inner end maintenances, the outer end of splined shaft 29 has screw thread, female handwheel 25 is threaded in the threaded portion of splined shaft 29, handwheel 25 is fixed on casing 28 outer ends by handwheel positioning sleeve 26, bearing gland 36, bearing block 19 and pressure bearing 27, and the inner end of splined shaft 29 is connected on the plug by gold utensil 34.Hydraulic forming machine upper bracket 2 is supported and fixed on the lower carriage 11 of hydraulic forming machine bottom by pillar 3 and nut 40.Hydraulic forming machine is fixed on the ground 16.The device that the control piston bar is synchronized with the movement comprises tooth bar 37, gear 38 and is connected axis 39, connecting axis 39 is fixed on the slide block 5 by bearing block 41, its left and right end portions is overlapped inherent gear 38 respectively, and gear 38 corresponding upper brackets 2 and base 10 between be fixed with tooth bar 37.

Claims

1, a kind of injection (mo(u)lding) machine of composite long rod insulator, it comprises hydraulic forming machine, hydraulic system, rubber injection machine, mould and automatic control system; It is characterized in that: further comprising the device that temperature regulating device and control piston bar are synchronized with the movement; Rubber injection machine is more than two, and every vertical or level is installed in the hydraulic forming machine side; Upper bracket is arranged at hydraulic forming machine top, lower carriage is arranged at the bottom, be fixed with a plurality of oil cylinders of hydraulic system on the upper bracket, the lower end of piston rod all is fixed on the same slide block, and the lower end of slide block is fixed with heating plate, and the lower end of last heating plate is fixed with patrix, the upper end of lower carriage is fixed with base, the upper end of base is fixed with down heating plate, and the upper end of following heating plate is fixed with counterdie, and oil cylinder is connected the hydraulic power unit of hydraulic system with switch by oil pipe; Mould comprises and can become the upper die and lower die of a unitary mould, a plurality of mandrel positioning device, plug take-up device and adhesive pouring nozzle by matched moulds; Its center is plug and full skirt die cavity behind the upper die and lower die matched moulds; Mandrel positioning device is distributed in the cavity of upper die and lower die symmetrically, it comprises the positioning mandril of being with tooth bar, the gear that is meshed with the tooth bar of positioning mandril and the connecting lever spanner of fixing with gear shaft, positioning mandril, gear and gear shaft place in the cavity of patrix or counterdie, the front end of positioning mandril is the circular arc that is complementary with plug, and the positioning mandril of symmetry holds out against the upper and lower side at plug respectively when injection; On the edge of upper and lower mould, be fixed with the locating piece of connecting lever spanner, have two locating holes of connecting lever spanner on the locating piece; The spacing distance that adhesive pouring nozzle requires according to injection glue amount is distributed in the front end or the rear end of patrix or counterdie, adhesive pouring nozzle connects plug and full skirt die cavity by the Jiao Dao of patrix or counterdie surface cross direction profiles, and the plug take-up device that is connected two ends, the plug left and right sides is fixed on the two ends of hydraulic forming machine; Every rubber injection machine has a plurality of injection-tube outlets, and each outlet of injection-tube is all by the adhesive pouring nozzle on the mould of pipeline connection correspondence; Injection-tube has temperature regulating device outward; Hydraulic forming machine top is fixed on the lower carriage of hydraulic forming machine bottom by shore supports.

2, the injection (mo(u)lding) machine of composite long rod insulator according to claim 1, it is characterized in that: described plug take-up device (7) is the mechanical type take-up device, it is by casing (28), the spline housing (33) of casing (28) inner end maintenance, splined shaft (29), handwheel (25), handwheel positioning sleeve (26), bearing gland (36), bearing block (19) and pressure bearing (27) are formed, the outer end of splined shaft (29) has screw thread, female handwheel (25) is threaded in the threaded portion of splined shaft (29), handwheel (25) is by handwheel positioning sleeve (26), bearing gland (36), bearing block (19) and pressure bearing (27) are fixed on casing (28) outer end, and the inner end of splined shaft (29) is connected on the plug by gold utensil (34).

3, the injection (mo(u)lding) machine of composite long rod insulator according to claim 1 is characterized in that: described plug take-up device is the fluid pressure type take-up device, and the piston rod of fluid pressure type take-up device is connected on the plug by gold utensil.

4, according to the injection (mo(u)lding) machine of claim 1 or 2 or 3 described composite long rod insulators, it is characterized in that: described temperature regulating device is included in the pipeline (13) that injection-tube (32) periphery is wrapped with, liquid and the liquid heating in the pipeline (13), and the inlet of liquid heating and liquid outlet are sealedly connected on the liquid outlet and inlet on the pipeline (13) by liquid line.

5, the injection (mo(u)lding) machine of composite long rod insulator according to claim 4, it is characterized in that: between described slide block (5) and the last heating plate (6), between base (10) and the following heating plate (9) one deck heat-insulation layer is arranged respectively, described counterdie (14), be fixed with heat-insulation layer respectively on the front and rear end of heating plate (9) and base (10) down.

6, the injection (mo(u)lding) machine of composite long rod insulator according to claim 5, it is characterized in that: the outlet of described every rubber injection machine (12) connects an injection-tube (32), one end of the corresponding mould of injection-tube (32) has a plurality of injection-tube outlets, and each injection-tube outlet is all by the adhesive pouring nozzle (15) on the mould of pipeline connection correspondence.

7, the injection (mo(u)lding) machine of composite long rod insulator according to claim 6, it is characterized in that: the device that described control piston bar is synchronized with the movement comprises tooth bar (37), gear (38) and is connected axis (39), connecting axis (39) is fixed on the slide block (5) by bearing block (40), its left and right end portions is overlapped inherent gear (38) respectively, and corresponding upper bracket of gear (38) (2) and base (10) between be fixed with tooth bar (37).

8, the injection (mo(u)lding) machine of composite long rod insulator according to claim 4, it is characterized in that: the outlet of described every rubber injection machine (12) connects an injection-tube (32), one end of the corresponding mould of injection-tube (32) has a plurality of injection-tube outlets, and each injection-tube outlet is all by the adhesive pouring nozzle (15) on the mould of pipeline connection correspondence.

9, according to the injection (mo(u)lding) machine of claim 1 or 2 or 3 described composite long rod insulators, it is characterized in that: the outlet of described every rubber injection machine (12) connects an injection-tube (32), one end of the corresponding mould of injection-tube (32) has a plurality of injection-tube outlets, and each injection-tube outlet is all by the adhesive pouring nozzle (15) on the mould of pipeline connection correspondence.

10, the injection (mo(u)lding) machine of composite long rod insulator according to claim 5, it is characterized in that: the device that described control piston bar is synchronized with the movement comprises tooth bar (37), gear (38) and is connected axis (39), connecting axis (39) is fixed on the slide block (5) by bearing block (41), its left and right end portions is overlapped inherent gear (38) respectively, and corresponding upper bracket of gear (38) (2) and base (10) between be fixed with tooth bar (37).