CN113601805A

CN113601805A - Production equipment for high-voltage cable intermediate joint

Info

Publication number: CN113601805A
Application number: CN202110898167.4A
Authority: CN
Inventors: 钟柏松
Original assignee: Guangzhou Hongxin Intelligent Technology Co ltd
Current assignee: Guangzhou Hongxin Intelligent Technology Co ltd
Priority date: 2021-08-05
Filing date: 2021-08-05
Publication date: 2021-11-05

Abstract

The invention discloses production equipment for a high-voltage cable intermediate joint, which comprises a rack, a control electric box, a processing mold, a mold locking device, a heating and cooling system and a mold assembling and disassembling device, wherein the control electric box, the processing mold, the mold locking device, the heating and cooling system and the mold assembling and disassembling device are fixed on the rack; the heating and cooling system is connected with the movable mould, the fixed mould and the core rod, the die-filling and demolding device is positioned between the movable mould and the fixed mould, and the die-locking device, the heating and cooling system and the die-filling and demolding device are respectively and electrically connected with the control electric box. The production equipment has higher automation degree, can automatically realize the production of the high-voltage cable intermediate joint, and improves the production efficiency and the qualification rate of products.

Description

Production equipment for high-voltage cable intermediate joint

Technical Field

The invention relates to the technical field of production equipment of a cable intermediate connector, in particular to production equipment of a high-voltage cable intermediate connector.

Background

The cable joint is an indispensable component in a cable line, and when a circuit is long, two or more sections of cables need to be connected through the cable joint by using the cable joint.

The traditional high-voltage cable intermediate joint is generally produced by the following two methods:

1. a mould for producing a high-voltage cable connector is locked by a screw, then materials are injected into the mould, and the mould is placed into an oven for heating and forming after the materials are injected.

2. The other method is to lock the die by a large-scale die spotting machine, then inject the material in the die, and heat the material by a hot water machine after the material injection is finished.

However, in the process of implementing the present invention, the inventors found the following problems in the prior art: the two production modes have low automation degree, and more manual participation operations, thus leading to low production efficiency and low product percent of pass.

Disclosure of Invention

The production equipment provided by the invention has higher automation degree, can automatically realize the production of the high-voltage cable intermediate joint, and improves the production efficiency and the product percent of pass.

The technical scheme is as follows:

a production device for a high-voltage cable intermediate joint comprises a rack, and a control electric box, a processing mold, a mold locking device, a heating and cooling system and a mold assembling and disassembling device which are fixed on the rack, wherein the processing mold comprises a core rod, a fixed mold and a movable mold which is arranged opposite to the fixed mold in the left-right direction, the core rod is positioned in mold cavities of the fixed mold and the movable mold, two ends of the core rod are respectively movably connected with the fixed mold and the movable mold, and the fixed mold and the movable mold are locked through the mold locking device; the heating and cooling system is connected with the movable mould, the fixed mould and the core rod, the demoulding device is arranged between the movable mould and the fixed mould, and the mould locking device, the heating and cooling system and the demoulding device are respectively and electrically connected with the control electric box.

Further, the fixed die and the movable die are both provided with plugging mechanisms, the fixed die and the movable die are both provided with exhaust holes, each plugging mechanism comprises a plugging driving piece and a sealing needle, the plugging driving pieces are connected with the sealing needles, the plugging driving pieces drive the plugging sealing needles to move in the direction away from or close to the exhaust holes, and the plugging mechanisms plug the exhaust holes through the sealing needles.

Further, the mold locking device comprises a transverse mold closing mechanism and a longitudinal mold locking mechanism, the transverse mold closing mechanism is connected with the movable mold, the transverse mold closing mechanism drives the movable mold to move towards or away from the fixed mold, the longitudinal mold locking mechanism is located between the fixed mold and the movable mold, and the fixed mold and the movable mold are locked through the longitudinal mold locking mechanism.

Further, vertical clamping mechanism is including last clamping unit and with last clamping unit matched with lower clamping unit, it includes locking ring and two locking driving pieces on to go up the clamping unit, lower clamping unit includes locking ring and two locking driving pieces down, go up the locking ring with lower locking ring sets up relatively, two go up the locking driving piece respectively with the both ends of going up the locking ring link to each other, two lower locking driving piece respectively with the both ends of lower locking ring link to each other, during the locking, the inner wall of going up the locking ring the inner wall of lower locking ring respectively with fixed mould the movable mould closely laminates.

Furthermore, two locking buckles are respectively arranged on the inner wall of the upper locking ring and the inner wall of the lower locking ring, locking grooves are respectively arranged at corresponding positions of the fixed die and the movable die, and the locking buckles are matched with the locking grooves; the fixed die and the movable die are respectively provided with a circle of locking groove, the inner wall of the upper locking ring and the inner wall of the lower locking ring are respectively provided with a locking convex part matched with the locking groove, and the locking groove is positioned on the inner wall of the locking groove.

Furthermore, dress shedder is including dress drawing of patterns PMKD, fixed baseplate, elevating system and stop gear, elevating system the stop gear all is fixed in dress drawing of patterns PMKD is last, fixed baseplate with elevating system links to each other, elevating system drives fixed baseplate reciprocates, dress shedder passes through stop gear is right elevating system's rise is spacing, fixed baseplate's upper surface is the arc structure.

Further, elevating system includes two direction subassemblies, stop gear includes two spacing subassemblies, two spacing subassembly sets up respectively in two the side of direction subassembly, spacing subassembly includes spacing cylinder and stopper, spacing cylinder with the stopper links to each other, spacing cylinder drives the stopper is to keeping away from or being close to the direction of direction subassembly removes.

Further, the heating and cooling system comprises a heating assembly and a cooling assembly, the heating assembly is connected with the cooling assembly, a first water channel is arranged on the fixed die, a second water channel is arranged on the movable die, a third water channel is arranged on the mandrel, the heating assembly and the cooling assembly are respectively communicated with the first water channel, the second water channel and the third water channel, and the third water channel is communicated with one end of the mandrel.

Furthermore, the production equipment further comprises an injection nozzle, the injection nozzle is fixed on the fixed die, the injection nozzle comprises an injection main body, an injection channel is arranged on the injection main body, an injection feed inlet and an injection discharge outlet are respectively arranged at two ends of the injection channel, the injection discharge outlet is communicated with a die cavity of the fixed die, a pressure sensor is further arranged on the injection main body and arranged on the side edge of the injection channel, and the injection main body monitors the pressure in the injection channel through the pressure sensor.

Furthermore, a cooling water channel is further arranged on the material injection main body, a cold water inlet and a cold water outlet are formed in the material injection main body, and the cold water inlet and the cold water outlet are respectively communicated with the cooling water channel.

The following illustrates the advantages or principles of the invention:

the production equipment comprises a processing die, a die locking device, a heating and cooling system and a die loading and unloading device. When the production equipment is adopted to produce the high-voltage cable intermediate joint, firstly, the core rod is arranged on the fixed die and the movable die by means of the die assembling and demolding device, and then the fixed die and the movable die are locked by the die locking device. Then injecting liquid silica gel into the mold cavity, and heating through a heating and cooling system after injection is finished to vulcanize the liquid silica gel; after the vulcanization is finished, the mixture is cooled by a heating and cooling system. And after cooling, the locking device loosens the locking of the fixed die and the movable die and drives the movable die to move, and the demolding operation of the high-voltage cable intermediate connector is realized by means of the demolding device. The production equipment has higher automation degree, realizes the automatic production of the high-voltage cable intermediate joint by the processing mould, the mould locking device, the heating and cooling system and the mould assembling and disassembling device, and improves the production efficiency and the qualification rate of products.

Drawings

FIG. 1 is a perspective view of the production apparatus of the present embodiment;

FIG. 2 is a bottom view of the production apparatus of the present embodiment;

FIG. 3 is a schematic structural view of the working mold of the present embodiment;

fig. 4 is a sectional view of the working mold of the present embodiment;

FIG. 5 is a perspective view of the mold clamping device of the present embodiment in combination with a processing mold;

FIG. 6 is a front view of the mold clamping device of the present embodiment in combination with a processing mold;

fig. 7 is a sectional view of the mode locking device of the present embodiment in a locked state;

fig. 8 is a sectional view of the mode locking device of the present embodiment in an unlocked state;

fig. 9 is a force-receiving schematic view of the mode-locking device of the present embodiment in the locked state;

FIG. 10 is a perspective view of the mold loading and unloading apparatus of the present embodiment;

FIG. 11 is a schematic view showing the structure of the core rod mounting and dismounting apparatus of this embodiment;

fig. 12 is a schematic structural view of the mold loading and unloading device of the present embodiment when removing the high-voltage cable joint;

FIG. 13 is a perspective view of the injection nozzle of the present embodiment;

FIG. 14 is a front view of the injection nozzle of the present embodiment;

FIG. 15 is a sectional view of the injection nozzle of the present embodiment;

FIG. 16 is a schematic structural view of the heating and cooling system of the present embodiment during heating;

fig. 17 is a schematic structural view of the heating and cooling system of the present embodiment when cooling;

description of reference numerals:

1. a frame; 2. controlling an electric box; 3. processing a mould; 4. a mold locking device; 5. a heating and cooling system; 6. a mold loading and unloading device; 30. a core rod; 31. fixing the mold; 32. a movable mold; 33. a mold cavity; 34. fixing the cover plate; 35. a connecting portion; 41. a transverse mould clamping mechanism; 42. a longitudinal clamping mechanism; 411. a transverse hydraulic cylinder; 412. a mold slide base plate; 413. a transverse slide rail; 421. an upper locking ring; 422. an upper die drive member; 423. a lower locking ring; 424. a lower mold locking driving member; 425. a mold locking fixing frame; 426. a mold locking driving frame; 427. a locking groove; 428. a locking projection; 429. a locking buckle; 430. a locking groove; 61. installing and demolding a fixed bottom plate; 62. a fixed base; 63. a lifting mechanism; 631. a lifting cylinder; 632. a lifting bottom plate; 633. a guide assembly; 6331. a guide connecting plate; 6332. a guide bar; 64. a limiting component; 641. a limiting cylinder; 642. a limiting block; 7. a material injection nozzle; 70. injecting a material main body; 71. a material injection channel; 72. a pressure sensor; 73. a material injection control mechanism; 731. controlling the driving member; 732. a needle sealing fixing seat; 733. injecting and sealing a needle; 74. a sliding cavity; 711. a first feed section; 712. a second feed section; 713. a third feed section; 79. a cooling water channel; 75. a cold water inlet; 76. a temperature detection hole; 77. a quick coupling; 771. a material injection cavity; 78. a handle; 50. a first water channel; 51. a second water channel; 52. a third water channel; 53. a first water inlet pipe; 54. a second water inlet pipe; 55. a third water inlet pipe; 56. a control switch; 57. a first water outlet pipe; 58. a second water outlet pipe; 59. a third water outlet pipe; 5a, a water temperature machine; 5b, a hot water pipe; 5c, a first control valve; 5d, a water cooling machine; 5e, a cold water pipe; 5f, a second control valve; 5e, a water conveying pipe; 5g of circulating water pipe; 36. an exhaust hole; 37. a plugging mechanism; 371. sealing and sealing the needle; 372. plugging the driving piece; 373. plugging the fixed seat.

Detailed Description

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "middle", "inner", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the invention easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the invention.

As shown in fig. 1 and fig. 2, the present embodiment discloses a production apparatus for a high-voltage cable intermediate joint, which includes a frame 1, and a control electrical box 2, a processing mold 3, a mold locking device 4, a heating and cooling system 5, and a mold loading and unloading device 6 fixed on the frame 1. The processing mold 3 comprises a core rod 30, a fixed mold 31 and a movable mold 32 arranged opposite to the fixed mold 31 in the left-right direction, mold cavities 33 are respectively arranged inside the fixed mold 31 and the movable mold 32, one end of the core rod 30 is arranged in the mold cavity 33 of the fixed mold 31, the other end of the core rod 30 is arranged in the mold cavity 33 of the movable mold 32, and two ends of the core rod 30 are movably connected with the fixed mold 31 and the movable mold 32 respectively. The fixed mold 31 and the movable mold 32 are locked by the mold locking device 4; the heating and cooling system 5 is connected with the movable die 32, the fixed die 31 and the core rod 30, and the mold loading and unloading device 6 is positioned between the movable die 32 and the fixed die 31. The mold locking device 4, the heating and cooling system 5 and the mold loading and unloading device 6 are respectively electrically connected with the control electric box 2.

When the production equipment is used for producing the high-voltage cable intermediate joint, firstly, the core rod 30 is installed on the fixed die 31 and the movable die 32 by the aid of the mold installing and demolding device 6, and then the fixed die 31 and the movable die 32 are locked by the mold locking device 4. Then, injecting liquid silica gel into the mold cavity 33, and heating the mold cavity through the heating and cooling system 5 after the injection is finished so as to vulcanize the liquid silica gel; after the completion of the vulcanization, the resultant is cooled by the heating and cooling system 5. After cooling, the locking device 4 releases the locking of the fixed mold 31 and the movable mold 32 and drives the movable mold 32 to move, and the demolding operation of the high-voltage cable intermediate joint is realized by the aid of the mold loading and demolding device 6. The production equipment of this embodiment has higher degree of automation, realizes the automated production of high tension cable intermediate head through mold processing 3, mode locking device 4, heating and cooling system 5 and dress shedder 6, has improved the qualification rate of production efficiency and product.

As shown in fig. 3 and 4, in order to connect the mandrel bar 30 to the fixed die 31 and the movable die 32, a fixed cover plate 34 is fixed to one end of the fixed die 31 remote from the movable die 32, and a fixed cover plate 34 is also fixed to one end of the movable die 32 remote from the fixed die 31. The two ends of the core rod 30 are respectively provided with a connecting part 35, the two fixed cover plates 34 are respectively provided with a connecting hole matched with the connecting part 35, and the connecting parts 35 at the two ends of the core rod 30 are respectively arranged in the connecting holes.

The high-voltage cable joint finished product produced by the processing die 3 forms a circle of joint line on the peripheral surface of the longitudinal center of the high-voltage cable joint finished product. For leaving two joint lines on the finished lateral direction of cable joint for current, the finished joint line of high tension cable joint that adopts the processing mould 3 production of this embodiment is shorter, and the outward appearance of product is comparatively pleasing to the eye.

Before injecting the liquid silicone rubber into the cavities 33 of the fixed mold 31 and the movable mold 32, one end of the core rod 30 needs to be fixed to the movable mold 32, the movable mold 32 is moved in a direction approaching the fixed mold 31 by the mold locking device 4, and the fixed mold 31 and the movable mold 32 are locked after being closed.

As shown in fig. 5 to 9, the clamping device 4 includes a lateral clamping mechanism 41 and a vertical clamping mechanism 42 in order to clamp and lock the movable mold 32 and the fixed mold 31. The transverse clamping mechanism 41 is connected to the movable mold 32, and the transverse clamping mechanism 41 drives the movable mold 32 to move toward or away from the fixed mold 31. The longitudinal clamping mechanism 42 is located between the fixed die 31 and the movable die 32, and the fixed die 31 and the movable die 32 are locked by the longitudinal clamping mechanism 42.

When the movable mold 32 and the fixed mold 31 need to be locked, the transverse clamping mechanism 41 drives the movable mold 32 to approach the fixed mold 31, and when the movable mold 32 moves to a predetermined position, the longitudinal clamping mechanism 42 locks the movable mold 32 and the longitudinal mold. When the movable mold 32 is separated from the fixed mold 31, the movable mold 32 is locked and separated from the fixed mold 31 by the longitudinal mold-locking mechanism 42, and then the movable mold 32 is driven by the transverse mold-clamping mechanism 41 to move away from the fixed mold 31. In this embodiment, the movable mold 32 and the fixed mold 31 can be locked by the transverse clamping mechanism 41 and the longitudinal clamping mechanism 42, and the locking is convenient. Compared with locking by a clamping machine, the longitudinal clamping mechanism 42 of the embodiment has smaller volume and small floor area.

In order to drive the movable mold 32 to move left and right, the transverse clamping mechanism 41 of the present embodiment includes two transverse hydraulic cylinders 411, a mold slide base plate 412, and two transverse slide rails 413. The two transverse sliding rails 413 are oppositely arranged on two side edges of the movable mold 32, the movable mold 32 is fixed on the mold sliding bottom plate 412, the mold sliding bottom plate 412 is respectively connected with the two transverse sliding rails 413 through sliders, and the two transverse hydraulic cylinders 411 are respectively connected with the mold sliding bottom plate 412.

When the movable mold 32 needs to be driven to move towards a direction close to or away from the fixed mold 31, the mold sliding bottom plate 412 is driven to move on the two transverse sliding rails 413 through the transverse hydraulic oil cylinder 411, and the movable mold 32 is driven to move by the mold sliding bottom plate 412 in the moving process. In this embodiment, the movement of the movable mold 32 is controlled by the transverse hydraulic cylinder 411, and the movement control effect of the movable mold 32 is good.

The transverse clamping mechanism 41 drives the movable mold 32 to move towards the direction close to the fixed mold 31, and after the movable mold 32 is attached to one end of the fixed mold 31, the fixed mold 31 and the movable mold 32 are locked by the longitudinal clamping mechanism 42, so that the fixed mold 31 is closely attached to one end of the movable mold 32.

In order to lock the movable mold 32 and the fixed mold 31, the longitudinal clamping mechanism 42 includes an upper clamping assembly and a lower clamping assembly, and the upper clamping assembly and the lower clamping assembly are matched. One end of the movable mold 32 and one end of the fixed mold 31 are located between the upper and lower mold assemblies.

Further, the upper mold assembly includes an upper locking ring 421 and two upper mold locking drivers 422, and the lower mold assembly includes a lower locking ring 423 and two lower mold locking drivers 424. The upper locking ring 421 and the lower locking ring 423 are both semicircular structures. The upper locking ring 421 and the lower locking ring 423 are disposed opposite to each other, the two upper mold driving members 422 are connected to both ends of the upper locking ring 421, and the two lower mold driving members 424 are connected to both ends of the lower locking ring 423. When locking, the inner walls of the upper locking ring 421 and the lower locking ring 423 are respectively closely attached to the fixed mold 31 and the movable mold 32. Preferably, the upper and lower mold

locking driving members

422 and 424 of the present embodiment are driving cylinders or driving cylinders.

During the mode locking, drive lower locking ring 423 rebound through two lower mode locking driving piece 424, drive two upper locking ring 421 downshifts through two upper mode locking driving piece 422. To facilitate driving the movement of the upper and lower locking rings 421 and 423. The longitudinal mold clamping mechanism 42 of the present embodiment further includes a mold clamping fixing frame 425 and a mold clamping driving frame 426 located above the mold clamping fixing frame 425, and both the mold clamping fixing frame 425 and the mold clamping driving frame 426 are located below the fixed mold 31. The two lower mold-locking driving members 424 are respectively and oppositely disposed on the mold-locking fixing frame 425, the two lower mold-locking driving members 424 are respectively connected to the mold-locking driving frame 426, and the mold-locking driving frame 426 is connected to both ends of the lower locking ring 423.

When the lower locking ring 423 needs to be driven to move upwards or downwards, the two lower mold locking driving pieces 424 drive the mold locking driving rack 426 to move upwards or downwards, and the mold locking driving rack 426 drives the lower locking ring 423 to move upwards or downwards.

The two upper mold driving members 422 are respectively disposed on the mold locking driving frame 426, and the driving shafts of the two upper mold driving members 422 respectively penetrate through both ends of the lower locking ring 423 and then are connected to the upper locking ring 421. After the upper mold driving member 422 is activated, the upper locking ring 421 is driven to move upward or downward.

In order to further lock the movable mold 32 and the fixed mold 31, a ring of locking grooves 427 are provided on the outer circumferential surfaces of the fixed mold 31 and the movable mold 32, respectively, and locking protrusions 428 that are matched with the locking grooves 427 are provided on the inner walls of the upper and lower locking rings 423 of the inner wall of the upper locking ring 421, respectively. When locked by the upper and lower locking rings 421 and 423, the two locking protrusions 428 of the upper locking ring 421 are respectively located in the locking grooves 427 of the movable mold 32 and the fixed mold 31.

The inner wall of the upper locking ring 421 and the inner wall of the lower locking ring 423 are respectively provided with two locking buckles 429, the corresponding positions of the fixed die 31 and the movable die 32 are respectively provided with a locking groove 430, and the locking buckles 429 are matched with the locking grooves 430. The locking groove 430 is located on an inner wall of the locking groove 427.

Further, a bottom portion of the locking buckle 429 located at the upper locking ring 421 extends obliquely downward from a middle portion of the upper locking ring 421; the bottom of the locking button 429 located at the lower locking ring 423 extends obliquely below the middle of the lower locking ring 423.

When the movable mold 32 is locked to the fixed mold 31, the movable mold 32 is first moved in a direction approaching the fixed mold 31 by the lateral clamping mechanism 41 until one end of the movable mold 32 comes into contact with one end of the fixed mold 31. Then the lower mold driving member 424 drives the lower locking ring 423 to move upward, the upper mold driving member 422 drives the upper locking ring 421 to move downward, and the locking button 429 is disposed in the locking slot 430. After locking, the upper locking ring 421 and the lower locking ring 423 exert a longitudinal locking force on the movable mold 32 and the fixed mold 31, the locking button 429 and the locking groove 430 exert a locking force on the movable mold 32 approaching the fixed mold 31, and the locking button 429 and the locking groove 430 exert a locking force on the fixed mold 31 approaching the fixed movable mold 32, so that the upper locking ring 421 and the lower locking ring 423 lock the movable mold 32 and the fixed mold 31, and the locking effect is good.

When the mold is locked and separated, the upper locking ring 421 is driven by the upper mold driving member 422 to move upward, the lower locking ring 423 is driven by the lower mold driving member 424 to move downward, and then the movable mold 32 is driven by the transverse mold clamping mechanism 41 to move in a direction away from the fixed mold 31.

As shown in fig. 10 to 12, the installation of the mandrel 30 and the demolding of the high-voltage cable end product are both completed by the mold assembling and disassembling device 6. The mold loading and unloading device 6 of the present embodiment includes a mold loading and unloading fixing base plate 61, a fixing base 62, and a lifting mechanism 63. The lifting mechanism 63 is fixed on the mold assembling and disassembling fixing bottom plate 61, and the fixing base 62 is located above the mold assembling and disassembling fixing bottom plate 61. The fixed base 62 is connected with the lifting mechanism 63, and the lifting mechanism 63 can drive the fixed base 62 to move up and down. The upper surface of the fixed base 62 is of an arc structure, and the arc structure on the upper surface of the fixed base 62 is designed, so that the core rod 30 or the cable joint finished product can be conveniently placed on the fixed base 62, and the core rod 30 or the cable joint finished product is prevented from falling off from the fixed base 62.

When the fixed base 62 is required to support the mandrel 30 or the finished cable joint product, the lifting mechanism 63 drives the fixed base 62 to move upwards to a preset position, and after the support is completed, the lifting mechanism 63 drives the fixed base 62 to move downwards to reset.

In order to realize the lifting of the fixed base 62, the lifting mechanism 63 includes a lifting cylinder 631 and a lifting base plate 632, the lifting cylinder 631 is fixed at the bottom of the mold assembling and disassembling fixed base plate 61, the lifting base plate 632 is located above the mold assembling and disassembling fixed base plate 61, the lifting cylinder 631 is connected with the lifting base plate 632, and the fixed base 62 is fixed on the lifting base plate 632. After the lifting cylinder 631 is activated, the lifting base plate 632 is driven to move upward or downward relative to the mold assembling and disassembling fixing base plate 61, so as to drive the fixing base 62 to move upward or downward.

In order to guide the movement of the lifting base plate 632, the lifting mechanism 63 of this embodiment further includes two guiding assemblies 633, the two guiding assemblies 633 are respectively disposed at two opposite sides of the lifting cylinder 631, and the two guiding assemblies 633 are respectively connected to the lifting base plate 632. The lifting base plate 632 is guided by two guide assemblies 633 during the movement.

Further, two direction subassemblies 633 all include direction connecting plate 6331 and two guide bars 6332, and two guide bars 6332 set up relatively, and the one end of two guide bars 6332 links to each other with direction connecting plate 6331 respectively, and the other end of two guide bars 6332 links to each other with lift bottom plate 632 respectively. Preferably, the guide connecting plate 6331 is located below the mold assembling and disassembling fixing base plate 61, four guide holes penetrating up and down are formed in the mold assembling and disassembling fixing base plate 61, and the other ends of the four guide rods 6332 penetrate through the guide holes and then are connected to the lifting base plate 632.

When the lifting cylinder 631 drives the lifting base plate 632 to ascend or descend, the four guide rods 6332 move upwards or downwards in the guide holes, so that the lifting base plate 632 is guided by the guide rods 6332 and the guide holes, and the position of the lifting base plate 632 is prevented from shifting in the lifting process.

The fixing base 62 is raised to a height lower than that of the mandrel bar 30 when supporting the cable end product, and the mold assembling and disassembling device 6 further includes a stopper mechanism for controlling the height of the fixing base 62. The limiting mechanism of the present embodiment is fixed to the mold mounting/dismounting fixing base plate 61. In order to realize that the ascending height of the lifting mechanism 63 is limited, the limiting mechanism comprises two limiting assemblies 64, the two limiting assemblies 64 are respectively arranged on the side edges of the two guide assemblies 633, and the limiting mechanism limits the ascending height of the two guide assemblies 633 through the two limiting assemblies 64.

The limiting assembly 64 comprises a limiting cylinder 641 and a limiting block 642, the limiting cylinder 641 is connected with the limiting block 642, and the limiting cylinder 641 drives the limiting block 642 to move in a direction away from or close to the guide rod 6332. The stop block 642 is located between the guide connecting plate 6331 and the mold clamping and stripping fixing base plate 61. Preferably, the limiting block 642 is located between two oppositely arranged guide rods 6332, and the limiting cylinder 641 is located at the side of the mold clamping and demolding fixed base plate 61.

When the limiting assembly 64 is in an initial state, the limiting block 642 is located at the side edges of the two guide rods 6332, and when the limiting is needed, the limiting cylinder 641 drives the limiting block 642 to move in a direction close to the guide rods 6332, so that the limiting block 642 is disposed between the guide connecting plate 6331 and the mold assembling and disassembling fixing base plate 61. The guide link 6331 is driven by the guide rod 6332 to move upwards during the upward movement, and the height of the upward movement is limited by the limit block 642 during the upward movement of the guide link 6331. The height of the limiting block 642 of the embodiment can be set according to actual use requirements.

When the mandrel 30 is attached, one end of the mandrel 30 is first fixed to the movable die 32, and then the movable die 32 moves the mandrel 30 in a direction approaching the fixed die 31. Before the mandrel 30 moves, the fixed base 62 is first moved upward by the lifting cylinder 631, and the mandrel 30 is supported by the fixed base 62. After the production of the high-voltage cable joint finished product is completed, the movable mold 32 drives the core rod 30 and the cable joint finished product to move in the direction away from the fixed mold 31, and in the moving process, the lifting cylinder 631 drives the fixed base 62 to move upwards, so that the cable joint finished product is supported by the fixed base 62. During the upward movement of the fixed base 62, the upward movement height is limited by the limiting block 642.

As shown in fig. 13 to 15, after the fixed mold 31 and the movable mold 32 are locked, the liquid silicone rubber can be injected into the cavity 33, and the injection nozzle 7 is provided at the bottom of the fixed mold 31 for facilitating the injection of the liquid silicone rubber. The material injection nozzle 7 of the embodiment comprises a material injection main body 70, wherein the material injection main body 70 is provided with a material injection channel 71, two ends of the material injection channel 71 are respectively provided with a material injection inlet and a material injection outlet, and the material injection outlet of the material injection nozzle 7 is communicated with the die cavity 33 of the fixed die 31. During material injection, the liquid silica gel enters the material injection channel 71 through the material injection inlet and then enters the die cavity 33 through the material injection outlet.

In order to accurately control the injection amount of the liquid silicone rubber in the mold cavity 33, the injection main body 70 of the present embodiment is further provided with a pressure sensor 72 and an injection control mechanism 73, the pressure sensor 72 is disposed at the side of the injection channel 71, and the injection main body 70 monitors the pressure in the injection channel 71 through the pressure sensor 72. The pressure sensor 72 is located at a side close to the injection material outlet, and since the injection material outlet is communicated with the mold cavity 33 of the fixed mold 31, the pressure value measured by the pressure sensor 72 is the pressure value in the mold cavity 33.

The material injection control mechanism 73 of this embodiment is located on the other side of the material injection channel 71, and the material injection main body 70 controls the on-off of the material injection channel 71 through the material injection control mechanism 73. Further, the injection control mechanism 73 includes a control driving part 731, a needle sealing fixing seat 732, and an injection needle sealing 733, and preferably, the control driving part 731 is a driving cylinder. The needle sealing fixing seat 732 is connected with the control driving part 731, and the injection needle sealing 733 is connected with the needle sealing fixing seat 732. The control driving part 731 can drive the needle sealing fixing seat 732 to move, so as to drive the injection needle sealing 733 to move towards or away from the injection channel 71, and the injection control mechanism 73 controls the on-off of the injection channel 71 through the injection needle sealing 733.

In order to facilitate the movement of the needle sealing fixing seat 732 and limit the movement of the needle sealing fixing seat 732, a sliding cavity 74 is formed in the injection main body 70, and the control driving part 731 drives the needle sealing fixing seat 732 to slide in the sliding cavity 74.

The injection channel 71 of the present embodiment includes a first feeding section 711, a second feeding section 712, and a third feeding section 713 that are connected, and the first feeding section 711, the second feeding section 712, and the third feeding section 713 form a Z-shaped structure. One end of the injection pin 733 is located at the side of the connection of the second feeding section 712 and the third feeding section 713, and the third feeding section 713 is opposite to the injection pin 733. When the driving part 731 is controlled to drive the injection pin sealer 733 to approach the third feeding section 713, the injection pin sealer 733 blocks the connection between the second feeding section 712 and the third feeding section 713, and the liquid silica gel cannot enter the third feeding section 713. When feeding is required, the control driving part 731 drives the injection needle 733 to move in a direction away from the third feeding section 713.

When the injection nozzle 7 is used for injecting materials, when the pressure sensor 72 measures that the pressure in the die cavity 33 reaches a preset value after the materials are injected, the injection control mechanism 73 cuts off the injection channel 71 to prevent the liquid silica gel from being injected into the die cavity 33 again. In the embodiment, the pressure sensor 72 is used for monitoring the pressure state in the mold cavity 33, and the injection control mechanism 73 is used for controlling the on-off of the injection channel 71, so that the injection amount of the liquid silica gel can be more accurately controlled, and the excessive or insufficient injection amount of the liquid silica gel in the mold cavity 33 can be avoided.

When the temperature of the injection main body 70 is too high, the liquid silicone rubber may be solidified in the injection passage 71, thereby forming a blockage, which affects the injection of the liquid silicone rubber. In order to prevent the liquid silica gel from solidifying in the material injection main body 70, in this embodiment, a cooling water channel 79 is further disposed on the material injection main body 70, a cold water inlet 75 and a cold water outlet are disposed on the material injection main body 70, and the cold water inlet 75 and the cold water outlet are respectively communicated with the cooling water channel 79.

When the temperature of the material injection main body 70 is too high, cold water is conveyed into the cooling water channel 79, in order to monitor the temperature of the material injection main body 70, a temperature detection hole 76 and a temperature sensor are arranged on the material injection main body 70, the temperature detection hole 76 extends along the side edge of the material injection main body 70 to the direction close to the material injection channel 71, and a probe of the temperature sensor is arranged in the temperature detection hole 76.

In the process of material injection, the temperature of the material injection main body 70 is monitored through the temperature sensor, and when the monitored temperature value exceeds the set temperature value, cold water can be conveyed into the cold water channel through the cold water inlet 75, so that the purpose of cooling the material injection main body 70 is realized, and the liquid silica gel is prevented from being solidified in the material injection channel 71.

In order to connect the material injection nozzle 7 with the material injection machine, the material injection main body 70 of the present embodiment is further provided with a quick coupling 77, the middle part of the quick coupling 77 is provided with a material injection cavity 771, and the material injection cavity 771 is communicated with the material injection channel 71. Liquid silica gel in the material injection machine enters the material injection channel 71 through the quick connector 77, the quick connector 77 can realize the quick connection between the material injection machine and the material injection nozzle 7, and meanwhile, the material injection nozzle 7 is suitable for various material injection machines.

In order to facilitate carrying of the injection nozzle 7, a handle 78 is further arranged on the injection main body 70, and the handle 78 is rotatably hinged with the injection main body 70.

In order to exhaust the pressure in the mold cavity and maintain a certain pressure value in the mold cavity, the fixed mold 31 and the movable mold 32 are respectively provided with an exhaust hole 36, the exhaust hole 36 is communicated with the mold cavity 33 of the fixed mold 31 and the movable mold 32, and the gas in the mold cavity 33 can be exhausted through the exhaust hole 36. In order to avoid the gas from discharging from the gas vent 36, the fixed mold 31 and the movable mold 32 are both provided with a plugging mechanism 37, the plugging mechanism 37 at least comprises a plugging sealing needle 371, and the plugging mechanism 37 plugs the gas vent 36 through the plugging sealing needle 371.

In order to control the plugging of the exhaust hole 36, the plugging mechanism 37 further includes a plugging driving member 372 and a plugging fixing seat 373. On shutoff fixing base 373 was fixed in fixed mould 31, movable mould 32, shutoff driving piece 372 was fixed in on shutoff fixing base 373, and shutoff driving piece 372 links to each other with shutoff needle 371, and shutoff driving piece 372 drives shutoff needle 371 to keeping away from or being close to the direction removal of exhaust hole 36.

When the gas in the mold cavity 33 needs to be exhausted, the plugging driving member 372 drives the plugging sealing pin 371 to move in the direction away from the exhaust hole 36, so that the plugging sealing pin 371 leaves from the exhaust hole 36. When the exhaust hole 36 needs to be sealed, the sealing driving member 372 drives the sealing needle 371 to move towards the direction close to the exhaust hole 36, and the exhaust hole 36 is sealed by the sealing needle 371.

Liquid silica gel needs to heat processing mould 3 when vulcanizing, then needs to cool off processing mould 3 after the vulcanization is accomplished, in order to realize the heating and the cooling of processing mould 3, this heating and cooling system 5 includes heating element and cooling element. As shown in fig. 16 and 17, the heating assembly is connected to the cooling assembly, the fixed mold 31 is provided with a first water channel 50, the movable mold 32 is provided with a second water channel 51, the mandrel 30 is provided with a third water channel 52, and the heating assembly and the cooling assembly are respectively communicated with the first water channel 50, the second water channel 51 and the third water channel 52. Preferably, the first water passage 50 is provided around the cavity 33 of the stationary mold 31, the second water passage 51 is provided around the cavity 33 of the movable mold 32, the third water passage 52 penetrates from one end of the core rod 30 to the other end of the core rod 30, and the third water passage 52 is located in the middle of the core rod 30.

When heating is needed, the heating assembly heats through the first water channel 50, the second water channel 51 and the third water channel 52, the first water channel 50 and the second water channel 51 heat simultaneously, and the heating time of the third water channel 52 and the heating time of the first water channel 50 and the heating time of the third water channel 52 and the heating time of the second water channel 51 are staggered; during cooling, cooling is performed through the first water passage 50, the second water passage 51, and the third water passage 52. In the present embodiment, the heating and cooling are performed by the fixed die 31, the movable die 32, and the mandrel 30, so that the heating and cooling time is shortened, and the heating and cooling efficiency is improved.

In order to realize heating and cooling through the first water channel 50, the second water channel 51 and the third water channel 52, the heating and cooling system 5 of the embodiment further includes a first water inlet pipe 53, a second water inlet pipe 54 and a third water inlet pipe 55. The heating assembly and the cooling assembly are respectively communicated with one ends of the first water inlet pipe 53, the second water inlet pipe 54 and the third water inlet pipe 55, and the other ends of the first water inlet pipe 53, the second water inlet pipe 54 and the third water inlet pipe 55 are respectively communicated with a water inlet of the first water channel 50, a water inlet of the second water channel 51 and a water inlet of the third water channel 52. Preferably, the third water inlet pipe 55 is provided with a control switch 56, the control switch 56 is a through switch, and the on/off of the third water channel 52 is controlled by the control switch 56.

When heated, hot water from the heating assembly enters the first water channel 50 through the first water inlet pipe 53, enters the second water channel 51 through the second water inlet pipe 54, and enters the third water channel 52 through the third water inlet pipe 55. When cooling, the cooling assembly's cold water enters the first waterway 50 through the first inlet tube 53, the second waterway 51 through the second inlet tube 54, and the third waterway 52 through the third inlet tube 55.

In order to discharge the water in the first water channel 50, the second water channel 51 and the third water channel 52, the heating and cooling system 5 further includes a first water outlet pipe 57, a second water outlet pipe 58 and a third water outlet pipe 59. One ends of the first water outlet pipe 57, the second water outlet pipe 58 and the third water outlet pipe 59 are respectively communicated with a water outlet of the first water channel 50, a water outlet of the second water channel 51 and a water outlet of the third water channel 52, and the other ends of the first water outlet pipe 57, the second water outlet pipe 58 and the third water outlet pipe 59 are respectively communicated with the cooling assembly.

In order to realize heating, the heating assembly of the present embodiment includes a water temperature controller 5a, a hot water pipe 5b and a first control valve 5 c. Preferably, the water temperature controller 5a is any water temperature controller 5a currently used in the market, and can heat water and adjust water temperature. The first control valve 5c is provided with three water outlets and two water inlets, the water outlet of the water temperature machine 5a is connected with one end of the hot water pipe 5b, and the other end of the hot water pipe 5b is connected with one water inlet of the first control valve 5 c. One ends of the first water inlet pipe 53, the second water inlet pipe 54 and the third water inlet pipe 55 are respectively connected with three water outlets of the first control valve 5 c.

To achieve cooling, the cooling assembly includes a water cooler 5d, a cold water pipe 5 e. Preferably, the water cooler 5d is any one of water coolers 5d currently used in the market, and cooling of water can be achieved. The water outlet of the water cooler 5d is connected with one end of a cold water pipe 5e, and the other end of the cold water pipe 5e is connected with the other water inlet of the first control valve 5 c. Further, the cooling assembly further comprises a second control valve 5f, three water inlets and one water outlet are arranged on the second control valve 5f, the other ends of the first water outlet pipe 57, the second water outlet pipe 58 and the third water outlet pipe 59 are respectively connected with the three water inlets of the second control valve 5f, and the water outlet of the second control valve 5f is connected with the water inlet of the water cooler 5d through a water conveying pipe 5 e.

In order to realize the recycling of water, the cooling assembly further comprises a circulating water pipe 5g, a third control valve is arranged on the cold water pipe 5e, one end of the circulating water pipe 5g is connected with a water outlet of the third control valve, and the other end of the circulating water pipe 5g is connected with a water inlet of the water temperature machine 5 a.

When the fixed mold 31, the movable mold 32 and the mandrel 30 need to be heated, as shown by arrows in fig. 16, the hot water heated by the water heater 5a enters the first control valve 5c through the hot water pipe 5b, and enters the first water inlet pipe 53, the second water inlet pipe 54 and the third water inlet pipe 55 through the first control valve 5c, respectively. Then, the hot water in the first water inlet pipe 53 enters the first water channel 50, passes through the first water channel 50, enters the first water outlet pipe 57 from the water outlet of the first water channel 50, and enters the water cooler 5d through the water pipe 5 e. The hot water in the second water inlet pipe 54 enters the second water channel 51, passes through the second water channel 51, enters the second water outlet pipe 58 from the water outlet of the second water channel 51, and enters the water cooler 5d through the water pipe 5 e. The hot water in the third water inlet pipe 55 enters the third water channel 52, passes through the third water channel 52, enters the third water outlet pipe 59 from the water outlet of the third water channel 52, and enters the water cooler 5d through the water pipe 5 e.

When the fixed die 31, the movable die 32, and the mandrel 30 need to be cooled, as shown by the arrow in fig. 17, the cold water cooled by the water cooler 5d enters the first control valve 5c through the cold water pipe 5e, and enters the first water inlet pipe 53, the second water inlet pipe 54, and the third water inlet pipe 55 through the first control valve 5c, respectively. Then, the cold water in the first water inlet pipe 53 enters the first water channel 50, passes through the first water channel 50, enters the first water outlet pipe 57 from the water outlet of the first water channel 50, and enters the water cooler 5d through the water pipe 5 e. The cold water in the second water inlet pipe 54 enters the second water channel 51, passes through the second water channel 51, enters the second water outlet pipe 58 from the water outlet of the second water channel 51, and enters the water cooler 5d through the water pipe 5 e. The cold water in the third water inlet pipe 55 enters the third water channel 52, passes through the third water channel 52, enters the third water outlet pipe 59 from the water outlet of the third water channel 52, and enters the water cooler 5d through the water pipe 5 e.

Water entering the water cooling machine can also enter the water temperature machine 5a through the circulating water pipe 5g, so that the water is recycled, and water resources are saved.

The embodiments of the present invention are not limited thereto, and according to the above-mentioned contents of the present invention, the present invention can be modified, substituted or combined in other various forms without departing from the basic technical idea of the present invention.

Claims

1. The production equipment of the high-voltage cable intermediate joint is characterized by comprising a rack, a control electric box, a processing mold, a mold locking device, a heating and cooling system and a mold assembling and disassembling device, wherein the control electric box, the processing mold, the mold locking device, the heating and cooling system and the mold assembling and disassembling device are fixed on the rack; the heating and cooling system is connected with the movable mould, the fixed mould and the core rod, the demoulding device is arranged between the movable mould and the fixed mould, and the mould locking device, the heating and cooling system and the demoulding device are respectively and electrically connected with the control electric box.

2. The apparatus for producing an intermediate joint of a high voltage cable according to claim 1, wherein the fixed mold and the movable mold are provided with a plugging mechanism, the fixed mold and the movable mold are provided with an exhaust hole, the plugging mechanism comprises a plugging driving member and a plugging sealing pin, the plugging driving member is connected to the plugging sealing pin, the plugging driving member drives the plugging sealing pin to move away from or close to the exhaust hole, and the plugging mechanism plugs the exhaust hole through the sealing pin.

3. The apparatus for manufacturing an intermediate joint of a high-voltage cable according to claim 1, wherein the mold clamping device comprises a transverse clamping mechanism and a longitudinal clamping mechanism, the transverse clamping mechanism is connected to the movable mold, the transverse clamping mechanism drives the movable mold to move toward or away from the fixed mold, the longitudinal clamping mechanism is located between the fixed mold and the movable mold, and the fixed mold and the movable mold are locked by the longitudinal clamping mechanism.

4. The apparatus for manufacturing an intermediate joint of a high-voltage cable according to claim 3, wherein the longitudinal clamping mechanism comprises an upper clamping assembly and a lower clamping assembly coupled to the upper clamping assembly, the upper clamping assembly comprises an upper locking ring and two upper locking driving members, the lower clamping assembly comprises a lower locking ring and two lower clamping driving members, the upper locking ring is disposed opposite to the lower locking ring, the two upper locking driving members are respectively connected to two ends of the upper locking ring, the two lower clamping driving members are respectively connected to two ends of the lower locking ring, and when the intermediate joint is locked, inner walls of the upper locking ring and the lower locking ring are tightly attached to the fixed mold and the movable mold, respectively.

5. The production equipment for the intermediate joint of the high-voltage cable as claimed in claim 4, wherein the inner wall of the upper locking ring and the inner wall of the lower locking ring are respectively provided with two locking buckles, the corresponding positions of the fixed die and the movable die are respectively provided with a locking groove, and the locking buckles are matched with the locking grooves; the fixed die and the movable die are respectively provided with a circle of locking groove, the inner wall of the upper locking ring and the inner wall of the lower locking ring are respectively provided with a locking convex part matched with the locking groove, and the locking groove is positioned on the inner wall of the locking groove.

6. The production equipment for the intermediate joint of the high-voltage cable according to any one of claims 1 to 5, wherein the mold loading and unloading device comprises a mold loading and unloading fixing bottom plate, a fixing base, a lifting mechanism and a limiting mechanism, the lifting mechanism and the limiting mechanism are both fixed on the mold loading and unloading fixing bottom plate, the fixing base is connected with the lifting mechanism, the lifting mechanism drives the fixing base to move up and down, the mold loading and unloading device limits the lifting height of the lifting mechanism through the limiting mechanism, and the upper surface of the fixing base is of an arc structure.

7. The production equipment of the high-voltage cable intermediate joint as claimed in claim 6, wherein the lifting mechanism comprises two guide assemblies, the limiting mechanism comprises two limiting assemblies, the two limiting assemblies are respectively arranged at the sides of the two guide assemblies, the limiting assembly comprises a limiting cylinder and a limiting block, the limiting cylinder is connected with the limiting block, and the limiting cylinder drives the limiting block to move towards the direction far away from or close to the guide assemblies.

8. The apparatus for producing an intermediate joint of a high-voltage cable according to any one of claims 1 to 5, wherein the heating and cooling system includes a heating element and a cooling element, the heating element is connected to the cooling element, the stationary mold is provided with a first water channel, the movable mold is provided with a second water channel, the mandrel is provided with a third water channel, the heating element and the cooling element are respectively communicated with the first water channel, the second water channel and the third water channel, and the third water channel extends from one end of the mandrel to the other end of the mandrel.

9. The production equipment of the high-voltage cable intermediate joint according to any one of claims 1 to 5, further comprising an injection nozzle fixed on the fixed mold, wherein the injection nozzle comprises an injection main body, the injection main body is provided with an injection channel, two ends of the injection channel are respectively provided with an injection feed inlet and an injection discharge outlet, the injection discharge outlet is communicated with a mold cavity of the fixed mold, the injection main body is further provided with a pressure sensor, the pressure sensor is arranged on a side edge of the injection channel, and the injection main body monitors the pressure in the injection channel through the pressure sensor.

10. The apparatus for producing an intermediate joint of a high-voltage cable as claimed in claim 9, wherein the material injection main body further comprises a cooling water channel, the material injection main body further comprises a cold water inlet and a cold water outlet, and the cold water inlet and the cold water outlet are respectively communicated with the cooling water channel.