Concentrated curing glue-dripping-free vacuum impregnation device for insulating tube of insulating operating rod

Abstract

The utility model discloses a centralized curing glue-dripping-free vacuum impregnation device for an insulating tube of an insulating operating rod, and belongs to the technical field of production and manufacturing of the insulating operating rod. The device mainly comprises a heat sealing mechanism and a suspended pipe die, the pipe mold comprises a hollow pipe fitting and two glue injection assemblies, and the hollow pipe fitting is used for containing a core rod wound with an insulating material; the heat sealing mechanism comprises a positioning stand column, a glue overflow system, an upper hot cutting assembly, a sliding clamping mechanism, a glue injection system and a lower hot cutting assembly. According to the utility model, the production mode of the insulation tube is innovated, the centralized one-time curing is realized, the glue dripping phenomenon is avoided in the turnover process, the production period is short, the idle time is fully utilized, the production efficiency is high, the energy loss is low, the manufactured product is good in consistency and strong in practicability, and the production device has breakthrough significance in the technical field of insulation tube manufacturing.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the production and manufacturing technical field of insulating operating rod, concretely, especially relates to a kind of insulating pipe concentrated curing glue-free vacuum impregnation device of insulating operating rod insulating pipe, which changes the traditional production mode of insulating pipe, realizes the concentrated batch curing treatment of insulating pipe glue-free, effectively simplifies manufacturing procedure, structure design is unique and ingenious, self-adapting ability is strong, manufacturing implementation is easy, implementation cost is low, automation integration degree is high, workshop production environment is greatly improved, production efficiency is greatly improved, and energy is effectively saved. BACKGROUND

[0002] Insulating operating rod is a kind of insulating tool specially used for live working, maintenance and maintenance in power system, mainly composed of insulating pipe and connector and other components arranged at the end of insulating pipe. Insulating pipe is the core component of insulating operating rod, which is generally made of high-performance insulating materials such as glass fiber and epoxy resin.

[0003] The production and manufacturing of insulating pipe usually has "long rod cutting" mode and "direct forming" mode.

[0004] The so-called "long rod re-cutting" mode refers to first producing a whole rod and then cutting it into several rods of the required size. The Chinese patent with the publication number CN111605230B, the publication date of June 28, 2022, and the utility model creation name of insulating rod and its manufacturing method and manufacturing device discloses a manufacturing method for producing an insulating tube in the "long rod re-cutting" mode, mainly including "core rod forming, processing into a core rod with insulating material; covering fiber felt, soaking the fiber felt in foaming resin, and covering the soaked fiber felt outside the core rod; the foaming resin content of the soaked fiber felt is 30% to 50%; covering fiber dry yarn, covering the fiber dry yarn outside the fiber felt soaked with foaming resin according to the design of hoop direction and / or longitudinal direction and forming a semi-finished insulating rod; resin matrix impregnation, impregnating the semi-finished insulating rod with resin matrix by injection impregnation, and the injection pressure is 0.5~1.5bar, the resin matrix uses any one or more of epoxy resin, vinyl resin, single-component polyurethane or double-component polyurethane; curing forming, curing and forming the semi-finished insulating rod impregnated with resin matrix at high temperature; cutting, cutting the semi-finished insulating rod containing resin matrix after high-temperature curing and forming into several insulating rods". The glue used for producing the insulating tube has good flowability, and the traditional production method will have the phenomenon of glue dripping before the forming and curing process, which not only causes waste of glue and pollution of the workshop environment, but also easily makes the surface of the cured semi-finished product uneven, increases the workload and labor intensity of subsequent surface polishing. In addition, the "long rod re-cutting" mode has long semi-finished product length, large production space occupation, difficult turnover, and low production efficiency; and the forming and curing process needs to customize drying equipment, and the production cost is high.

[0005] The utility model discloses an "directly forming" mode's insulating pipe manufacturing method, mainly includes "step one: the accurate injection mold, after clean injection mold's outer mould inner chamber wall, the outer circle of core rod is daubed with release agent, step two: the fiber material is wound on the core rod, and the fiber material that the core rod is wound is wound to the same diameter as the forming cavity, then the core rod that has wound fiber material is assembled with upper end cap and is covered into the outer mould inner chamber, and the both ends port of outer mould is sealed through upper end cap and lower end cap, step three: the injection hole of lower end cap is sealed, the exhaust hole on the upper end cap is connected with vacuum pump, and the air in the forming cavity is removed to make it be in vacuum state, the heating device that is equipped in the inner chamber of core rod is opened, and the heating temperature is adjusted to 100 ~ 130 DEG C, so that the fiber material is high-temperature vacuum drying, and the residual air and moisture in the fiber material are removed, step four: according to the temperature condition under the requirement of vacuum impregnation process, the epoxy resin, curing agent and accelerator are mixed and stirred uniformly to obtain resin, and then vacuum degassing is prepared, step five: the heating temperature of heating device is adjusted to 40 ~ 60 DEG C, the resin obtained in step four is injected into the forming cavity from the lower to the upper through the injection hole by using injection equipment, after injecting the quantitative resin, the exhaust hole is communicated with the air compressor, and the dry air or inert gas is introduced into the forming cavity through the air compressor, so that the pressure in the forming cavity is kept at 0.5 ~ 0.6 Mpa, and the pressure is kept for 1 ~ 2 h under the pressure keeping pressure, so that the resin rapidly and completely penetrates the fiber material, step six: after the resin completely penetrates the fiber material, the temperature of heating device is adjusted to 140 ~ 180 DEG C, and the resin is heated and cured to form, and the time is 10 ~ 15 h, step seven: after the resin is cured to form, the heating device is closed, the mold is cooled, the outer mold and the upper end cap are removed, and the core rod is pulled out, to obtain the insulating rod, step eight: the insulating rod is put into the oven for secondary curing, step nine: the outer surface of the insulating rod treated in step eight is polished, and the solid part at the lower end and the uneven part at the upper end of the insulating rod are cut off, to obtain the smooth and flat tubular insulating rod.

[0006] Each insulating tube is generally about 1m, and each insulating tube is single cured, so that the next one cannot be directly injected with glue, and needs to wait for the residual heat of the previous mold to cool down before injecting glue, which takes a long time and has a long production cycle, resulting in low production efficiency.

[0007] There is natural heat loss during the curing process, and single curing will cause a part of heat to be lost naturally during the manufacturing process of each insulation tube, further reducing energy utilization and increasing enterprise production cost.

[0008] The single curing effect is poor, and the insulation tube still needs to enter an oven for secondary curing after demolding, thereby increasing production procedures, energy consumption and enterprise production cost.

[0009] The single curing mode is difficult to ensure that the curing conditions of each insulation tube are completely consistent (such as temperature), which will cause poor consistency and large performance fluctuation of the product. Practical new type content

[0010] The insulation operating rod insulation tube concentrated curing glue-free vacuum impregnation device changes the traditional production mode of the insulation tube, realizes concentrated batch curing treatment of the glue-free insulation tube, effectively simplifies the manufacturing procedure, has unique and ingenious structure design, has strong self-adaptation capability, is easy to manufacture and implement, has low implementation cost, has high automatic integration degree, greatly improves the workshop production environment, greatly improves the production efficiency, effectively saves energy, and the like.

[0011] The insulation operating rod insulation tube concentrated curing glue-free vacuum impregnation device is implemented through the following technical solutions:

[0012] An insulation operating rod insulation tube concentrated curing glue-free vacuum impregnation device, comprising a heat sealing mechanism and a pipe mold hung and placed;

[0013] The pipe mold comprises a hollow pipe and glue injection assemblies fixed at two ends of the hollow pipe, and the hollow pipe is used for accommodating a core rod wound with insulation material.

[0014] The heat sealing mechanism comprises a positioning stand column, a glue overflow system in closed communication with the upper glue injection assembly is arranged at the top position of the positioning stand column, an upper heat cutting assembly for high-temperature curing of glue in the upper glue injection assembly is fixedly arranged above the positioning stand column, a glue injection system in closed communication with the lower glue injection assembly is arranged below the lower glue injection assembly, and a lower heat cutting assembly for high-temperature curing of glue in the lower glue injection assembly is further arranged on one side of the lower glue injection assembly.

[0015] Preferably, the upper and lower hot-cutting assemblies are identical in structure, each comprising a heating seat with a heating rod embedded therein, and a contact groove is formed on the opposite surface of the heating seat to match the surface of the glue injection assembly, and the heating seat is fixed to the hot-cutting joint panel of the hot-cutting finger cylinder; the cylinder body of the hot-cutting finger cylinder is fixed to a moving plate, and side support plates are arranged on both sides of the moving plate and fixed to the hot-cutting slide cylinder; a guide rod is fixed to the side surface of the moving plate and in gap cooperation with the side support plate, and a floating spring is sleeved on the guide rod between the side surface of the moving plate and the side support plate; the moving plate is slidably connected to the floating slide rail fixed to the rear support plate via a floating sliding block, and the rear support plate is fixed to the hot-cutting slide.

[0016] Preferably, the heating seat is fixed to the hot-cutting joint panel via a transition connecting block, and a heat insulation pad is arranged between the transition connecting block and the hot-cutting joint panel.

[0017] Preferably, the side support plate is fixed to the rear support plate, and the rear support plate is fixed to the hot-cutting slide via a hot-cutting base.

[0018] Preferably, a positioning sleeve is fixed to the glue injection bottom surface of the glue injection assembly, the inner ring of the positioning sleeve is used for positioning the mandrel, and the outer ring of the positioning sleeve is in gap cooperation with the hollow pipe; the positioning sleeve comprises a plurality of positioning protrusions which are distributed in a circumferential direction and have arc-shaped inner walls; and a glue injection groove is formed in the glue injection bottom surface between the two positioning protrusions and in the region of the inner ring of the positioning sleeve.

[0019] Preferably, the glue injection system is located directly below the lower glue injection assembly, and comprises a jacking mechanism and a glue injection bottom plate supported by the jacking mechanism and supporting the lower glue injection assembly; the lower glue injection assembly is provided with a glue inlet channel for closed communication with the glue filling pipe and an annular channel for circulating cooling water; and the annular channel is in closed communication with the cooling water pipe sleeved around the glue filling pipe.

[0020] Preferably, the upper hot-cutting assembly is fixed to the positioning column, and the lower hot-cutting assembly is fixed to the glue injection bottom plate.

[0021] Preferably, a sliding clamping mechanism is further fixed to the positioning column and used for clamping and following the upward and downward movement of the hollow pipe;

[0022] The sliding clamping mechanism comprises a sliding plate fixed with at least one clamping assembly, the sliding plate is slidably connected to the large slide rail fixed to the positioning column via a large sliding block; the clamping assembly comprises a clamping slide cylinder fixed to the sliding plate, a clamping finger cylinder is fixed to the slide of the clamping slide cylinder, and two joint panels of the clamping finger cylinder are respectively provided with clamping jaws matched with the surface of the hollow pipe.

[0023] Preferably, the glue overflow system is arranged above the glue injection assembly, which comprises a lifting guide seat fixed on the positioning column and having a hollow structure; a glue overflow seat having a glue overflow channel is matched with the lifting guide seat in a gap, the glue overflow seat is fixed with a lower limiting plate for limiting and mounting one end of a glue overflow compression spring, the other end of the glue overflow compression spring is limited by an upper limiting plate, and the upper limiting plate is fixed and supported on the lifting guide seat by a glue overflow column; the glue overflow seat is further provided with a cold water channel for circulating cold water.

[0024] Preferably, one side of the glue overflow system is further provided with a glue drip prevention assembly fixed on the positioning column; the glue drip prevention assembly comprises a guide rod cylinder and a bracket fixed on a guide rod cylinder connecting plate.

[0025] Compared with the prior art, the utility model has the advantages that:

[0026] 1. The utility model innovates the production mode of the insulation pipe, realizes centralized one-time curing, and has no glue dripping phenomenon in the turnover process. The glue in the two glue injection assemblies is cured to lock the glue in the hollow pipe, there is no glue dripping phenomenon in the turnover process, and the turnover process is also the process of fully permeating the glue into the insulation material, idle time is efficiently utilized, production efficiency is greatly improved, meanwhile, the glue drip prevention turnover effectively avoids the problems of environmental pollution, glue waste and uneven surface of the semi-finished product caused by glue dripping, obviously improves the workshop production environment and reduces the labor intensity.

[0027] 2. The glue in the glue injection assembly is very small relative to the glue in the hollow pipe, the heat required for curing the glue in the glue injection assembly is relatively small, so the heat cutting and curing speed is very fast, the energy consumption is very low, after the glue in the hollow pipe is "locked" by heat cutting and curing, the workpiece is centrally sent into the oven for forming and curing process; the forming and curing of the insulation pipe is only performed once, and is batched and cured, the processing procedure is less, the production efficiency is high, the energy consumption is significantly reduced, and the energy utilization is high.

[0028] 3. The utility model product quality is stable, and product consistency is high; centralized curing helps to keep the consistency of curing conditions (such as temperature, time, etc.), which is crucial for ensuring the quality stability of the final product, and reduces the product performance fluctuation caused by the difference in curing conditions.

[0029] 4. The vacuum glue dipping device has a unique and ingenious structure design, integrates multiple production procedures such as vacuumizing, glue injection, glue dipping and heat cutting and locking on one device, solves the problem that traditional insulation pipes cannot be batched and cured, has high speed and significantly shortens the production cycle, realizes glue drip prevention turnover and one-time centralized curing and forming of the semi-finished insulation pipe, and greatly improves the insulation pipe production efficiency.

[0030] 5. The vacuum impregnation device has strong self-adaptation ability, good hot cutting effect, easy manufacturing and implementation, low implementation cost, high automation integration degree and high production efficiency.

[0031] 6. The vacuum impregnation device has high product surface smoothness, low subsequent polishing difficulty, effectively reduces labor intensity, and further improves production efficiency; and the produced product has uniform wall thickness and high product quality.

[0032] 7. The pipe mold can be recycled and reused, is economical and practical, and further reduces production cost for enterprises.

[0033] 8. The utility model has very strong practicality, can create significant economic benefits for enterprises, has breakthrough significance in the field of insulating pipe manufacturing technology, and promotes the development of the industry. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figure 1 is a three-dimensional direction structure schematic diagram of the utility model Figure One .

[0035] Figure 2 is an explosion structure schematic diagram of the pipe mold of the utility model.

[0036] Figure 3 is a bottom direction structure schematic diagram of the glue injection assembly of the utility model.

[0037] Figure 4 is a sectional direction structure schematic diagram of the pipe mold of the utility model.

[0038] Figure 5 is a three-dimensional direction structure schematic diagram of the hot cutting assembly of the utility model.

[0039] Figure 6 is a top-down direction structure schematic diagram of the hot cutting assembly of the utility model.

[0040] Figure 7 is a three-dimensional direction structure schematic diagram of the utility model Figure 1 partial enlargement Figure One .

[0041] Figure 8 is a glue overflow system structure schematic diagram of the utility model.

[0042] Figure 9 is a three-dimensional direction structure schematic diagram of the utility model Figure 1 partial enlargement Figure Two .

[0043] Figure 10 is a three-dimensional direction structure schematic diagram of the utility model Figure 1 partial enlargement Figure Three .

[0044] Figure 11It is the sectional structure schematic diagram of the glue injection part, glue filling pipe and cooling water pipe of the utility model.

[0045] Figure 12 It is the three-dimensional direction structure schematic diagram of the utility model Figure Two .

[0046] In the figure,

[0047] 1, pipe mold; 11, core rod; 12, hollow pipe; 13, upper glue injection assembly; 131, positioning sleeve; 132, glue injection bottom surface; 1311, positioning protrusion; 133, glue injection groove; 134, glue flow passage; 14, lower glue injection assembly;

[0048] 2, heat sealing mechanism; 21, positioning stand; 22, glue overflow system; 221, lifting guide seat; 222, glue overflow seat; 2221, glue overflow joint; 2222, cold water passage; 2223, sealing element; 223, glue overflow compression spring; 224, lower limit plate; 225, upper limit plate; 226, overflow support column; 23, upper heat cutting assembly; 24, sliding clamping mechanism; 241, clamping assembly; 2411, clamping sliding table air cylinder; 2412, clamping finger air cylinder; 2413, clamping jaw; 242, sliding plate; 243, large sliding block; 244, large sliding rail; 25, glue injection system; 251, lifting mechanism; 252, glue injection bottom plate; 253, lower glue injection part; 2531, glue inlet passage; 2532, annular passage; 254, glue filling pipe; 255, cooling water pipe; 26, lower heat cutting assembly; 261, heating seat; 2611, contact groove; 262, heat cutting finger air cylinder; 2621, heat cutting joint panel; 263, moving plate; 264, heat cutting sliding table air cylinder; 2641, heat cutting sliding table; 2651, side support plate; 2652, rear support plate; 2653, heat cutting base; 266, guide rod; 2671, floating sliding block; 2672, floating sliding rail; 2673, floating spring; 2681, transition connecting block; 2682, heat insulation pad plate; 27, anti-dripping glue assembly; 271, guide rod air cylinder; 272, support groove; 28, conveying frame. DETAILED DESCRIPTION

[0049] In order to enable the reader to better understand the design purpose of the utility model, the technical solutions described in the utility model are further described and explained below in conjunction with examples. It should be noted that the orientation terms that may be involved in the following paragraphs, including but not limited to "up, down, left, right, front, back" and the like, are based on the visual orientation shown in the drawings of the specification, and should not and should not be regarded as a limitation on the protection scope or technical solutions of the utility model. Its purpose is only to facilitate those skilled in the art to better understand the technical solutions described in the utility model creation.

[0050] In the description of this specification, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0051] Example 1

[0052] like Figure 1 As shown, a device for centralized curing and drip-free vacuum dipping of insulating operating rod insulating tubes comprises a heat sealing mechanism 2 and a suspended tube mold 1. The tube mold 1 comprises a hollow tube 12 and glue injection assemblies fixed at both ends of the hollow tube 12. The hollow tube 12 is used to accommodate a core rod 11 wrapped with insulating material. The heat sealing mechanism 2 comprises a positioning column 21. A glue overflow system 22 is provided at the top of the positioning column 21 for sealed communication with the upper glue injection assembly 13. An upper hot-cut assembly 23 is fixed above the positioning column 21 for high-temperature curing of the glue within the upper glue injection assembly 13. A glue injection system 25 is provided below the lower glue injection assembly 14 for sealed communication with the lower glue injection assembly 14. A lower hot-cut assembly 26 is also provided on one side of the lower glue injection assembly 14 for high-temperature curing of the glue within the lower glue injection assembly 14.

[0053] The dipping method used in the dipping device of this embodiment includes the following steps:

[0054] Step 1: Prepare the hollow tube 12 in advance, and seal and fix a glue injection component connected to the hollow tube 12 at one end of the hollow tube 12; the glue injection component is used to circulate glue, so the glue injection component will naturally have a glue circulation channel 134.

[0055] Step 2: Wind the insulating material required for preparing the insulating tube on the core rod 11; the insulating material is determined according to the type of the insulating tube, such as glass fiber material.

[0056] Step 3: Place the product from step 2 into the hollow tube 12 from step 1. The core rod 11 wrapped with the insulating material must be coaxial with the hollow tube 12 to ensure uniform wall thickness of the formed and cured insulating tube. Before the core rod 11 is placed, the hollow tube 12 will be coated with a release agent. The glue-injected component can be coated with a release agent or not, depending on actual needs. Because the amount of glue in the glue-injected component is very small, the solidified glue in the glue-injected component can be drilled out with a drill bit when the glue-injected component needs to be recycled and reused.

[0057] Step four: seal and fix another glue injection assembly which is connected with the hollow tube 12 at the other end of the hollow tube 12.

[0058] Step five: vacuumize the inner cavities of the hollow tube 12 and the two glue injection assemblies.

[0059] Step six: glue injection, pressure injection from the glue injection port of any one of the glue injection assemblies, and the excess glue is discharged from the glue injection port of the other glue injection assembly.

[0060] Step seven: after the glue injection, heat cutting and blocking process is performed, the glue inside the two glue injection assemblies is solidified, and the liquid glue inside the hollow tube 12 is blocked; the glue inside the glue injection assembly is solidified at high temperature, which is called “heat cutting solidification”. The amount of glue inside the glue injection assembly is small, the energy consumption for solidifying the glue inside the glue injection assembly is low, the solidification speed is fast, and the blocking effect of the glue inside the hollow tube 12 is good, which is called “heat cutting blocking”.

[0061] Step eight: perform the molding and solidification process, and place the product of step seven into the oven to solidify and form the insulation tube. Enter the oven, concentrate batch solidification, and only perform this molding and solidification process.

[0062] The operation process of the glue dipping device in this embodiment is as follows: the pipe mold 1 to be dipped in glue moves between the glue injection system 25 and the glue overflow system 22, in a suspended state, the glue injection system 25 moves upwards and pushes the pipe mold 1 upwards until the pipe mold 1 is in close communication with the glue overflow system 22. Then, the glue injection machine and the vacuum pump are used to vacuumize the pipe mold 1 in both directions, or only the glue injection machine or the vacuum pump is used to vacuumize the pipe mold 1 in one direction, but the efficiency of the two-way is higher. When the inner cavity of the pipe mold 1 reaches the vacuum condition, the glue injection machine performs pressure injection from the bottom to the top of the inner cavity of the pipe mold 1 through the glue injection system 25. After sufficient glue injection, the excess glue is discharged through the glue overflow pipe of the glue overflow system 22. After the glue injection is completed, the upper heat cutting assembly 23 and the lower heat cutting assembly 26 are operated to perform high-temperature solidification treatment on the small amount of glue inside the two glue injection assemblies (i.e., “heat cutting solidification” is realized to achieve “heat cutting blocking”), so as to quickly block the glue inside the hollow tube 12. After the heat cutting and blocking, the insulation material can be fully dipped in glue during the idle time, and after being placed in the oven, the insulation tube can be molded and solidified at one time. Through batch concentrated solidification, the time of single workpiece in the molding and solidification process is reduced, the production process is more coherent, and the overall production efficiency is greatly improved. In addition, concentrated solidification also reduces the energy loss of single workpiece in the molding and solidification process, and does not need secondary molding and solidification.

[0063] The embodiment innovates the production mode of the insulating tube, realizes centralized one-time curing, and no glue dripping phenomenon in the turnover process. The glue in the two glue injection assemblies is cured to lock the glue in the hollow pipe, there is no glue dripping phenomenon in the turnover process, and the turnover process is also the process of fully penetrating the glue into the insulating material, efficiently utilizes the idle time, and greatly improves the production efficiency; at the same time, the glue dripping turnover effectively avoids the problems of environmental pollution, glue waste and uneven surface of semi-finished products caused by glue dripping, obviously improves the production environment of the workshop and reduces the labor intensity.

[0064] The glue in the glue injection assembly of the embodiment is very small relative to the glue in the hollow pipe, and the heat required for curing the glue in the glue injection assembly is relatively small, so the heat cutting and curing speed is very fast, the energy consumption is very low, and after the glue in the hollow pipe is "locked" by heat cutting and curing, the workpiece is centrally sent into the oven for molding and curing process; the molding and curing of the insulating tube of the embodiment is only performed once, and is batch centralized curing, the processing procedure is less, the production efficiency is high, the energy consumption is significantly reduced, and the energy utilization is high.

[0065] The product quality of the embodiment is stable, and the product consistency is high; centralized curing helps to keep the consistency of curing conditions (such as temperature, time, etc.), which is crucial to ensure the quality stability of the final product, and reduces the performance fluctuation of the product caused by the difference in curing conditions.

[0066] The vacuum impregnation device of the embodiment has a unique and ingenious structure, integrates multiple production procedures such as vacuumizing, glue injection, impregnation, heat cutting and locking on one device, and at the same time solves the problem of batch centralized curing of traditional insulating tubes, has a high speed, significantly shortens the production cycle, realizes glue-free turnover and one-time centralized curing molding of semi-finished insulating tubes, and greatly improves the production efficiency of the insulating tube;

[0067] The pipe mold of the embodiment can be recycled and reused, is economical and practical, and further reduces the production cost of enterprises.

[0068] The vacuum impregnation device of the embodiment has very strong practicality, can create significant economic benefits for enterprises, has a breakthrough significance in the field of insulating tube manufacturing technology, and promotes the development of the industry.

[0069] Embodiment 2

[0070] On the basis of embodiment 1, the technical features involved in the embodiment and the functions and roles of the technical features in the utility model are described in detail to help technicians in the field fully understand the technical scheme of the utility model and reproduce it.

[0071] As Figures 5-6As shown, the upper hot cutting assembly 23 and the lower hot cutting assembly 26 in the embodiment have the same structure, which includes two heating seats 261 oppositely arranged and embedded with heating rods, and the opposite surfaces of the two heating seats 261 are provided with contact grooves 2611 matched with the surface of the glue injection assembly, and the two heating seats 261 are fixedly connected with two hot cutting joint panels 2621 of a hot cutting finger cylinder 262 respectively; the cylinder body of the hot cutting finger cylinder 262 is fixedly connected with a moving plate 263, and the moving plate 263 is provided with side support plates 2651 fixedly connected with hot cutting slides 2641 of a hot cutting slide cylinder 264 on both sides; the moving plate 263 is fixedly provided with guide rods 266 matched with the side support plates 2651 on both side surfaces, and the guide rods 266 between the side surface of the moving plate 263 and the side support plates 2651 are sleeved with floating springs 2673. In the absence of external force, the hot cutting finger cylinder 262 is located at the middle position of the two side support plates 2651; when there is external force, one of the two floating springs 2673 is elongated and the other is contracted, and the hot cutting finger cylinder 262 is moved and adjusted in the Y-axis direction with a small amplitude. The moving plate 263 is slidingly connected with a floating slide rail 2672 fixed on a rear support plate 2652 through a floating slide block 2671, and the rear support plate 2652 is fixedly connected with the hot cutting slide 2641. After the heating seat 261 clamps the glue injection assembly, the hot cutting slide cylinder 264 is in a cut-off state. The hot cutting slide cylinder 264 in the cut-off state can be moved and adjusted in the X-axis direction with a small amplitude if there is external force.

[0072] The working principle of the hot cutting assembly in this embodiment is as follows: in the initial state, the two hot cutting joint panels 2621 of the hot cutting finger cylinder 262 are in the open state. After the glue injection is completed, the hot cutting slide cylinder 264 of the lower hot cutting assembly 26 and the upper hot cutting assembly 23 is aerated, the hot cutting slide 2641 moves towards the pipe mold 1, and after moving to the preset position, the hot cutting finger cylinder 262 is actuated, and the two hot cutting joint panels 2621 drive the heating seat 261 to clamp the glue injection assembly. In the ideal state, the contact groove 2611 will completely fit the surface of the glue injection assembly, but due to the installation error between the two glue injection assemblies and the hollow pipe 12 during installation, it cannot be absolutely coaxial with the hollow pipe 12, and the existence of the error will cause the contact groove 2611 to not completely fit the glue injection assembly, thereby affecting the hot cutting and curing effect. To solve this problem, the upper hot cutting assembly 23 and the lower hot cutting assembly 26 are designed to be floating in this embodiment. After the heating seat 261 on the hot cutting finger cylinder 262 clamps the glue injection assembly, the hot cutting slide cylinder 264 is disconnected, the contact groove 2611 is in a circular arc shape, and the clamping force of the two heating seats 261 acting on the glue injection assembly will drive the contact groove 2611 to completely fit the glue injection assembly. Since the hot cutting finger cylinder 262 is connected to the floating slide 2671 and the floating slide rail 2672 through the floating slide 2671, and the guide rod 266 is in clearance fit with the side support plate 2651, the hot cutting finger cylinder 262 can move in the Y-axis direction to adapt to the fit of the heating seat 261 and the glue injection assembly. The stress in the X-axis direction is adapted by the sliding of the hot cutting slide 2641. Therefore, through the floating design, the upper hot cutting assembly 23 and the lower hot cutting assembly 26 of this embodiment have self-adaptation capability, so that the contact groove 2611 completely fits the surface of the glue injection assembly, and the efficient performance of the insulation pipe hot cutting and locking process is effectively ensured.

[0073] The heating seat 261 in this embodiment is fixedly connected to the hot cutting joint panel 2621 through the transition connecting block 2681, and a heat insulation pad 2682 is arranged between the transition connecting block 2681 and the hot cutting joint panel 2621. The heat insulation pad 2682 is designed to save energy and avoid unnecessary heat loss.

[0074] The side support plate 2651 and the rear support plate 2652 are fixedly connected in this embodiment, and the rear support plate 2652 is fixedly connected to the hot cutting slide 2641 through the hot cutting base 2653. The structure design is stable.

[0075] On the basis of the advantages of embodiment 1, the embodiment 2 also has the following advantages:

[0076] The vacuum impregnation device in this embodiment has strong self-adaptation capability, good hot cutting effect, easy manufacturing and implementation, low implementation cost, high automation integration, and high production efficiency.

[0077] Example 3

[0078] Based on Example 1 or Example 2, this example continues to describe in detail the technical features involved and the functions and roles played by the technical features in the present utility model, so as to help technicians in this field fully understand the technical solution of the present utility model and reproduce it.

[0079] like Figures 2-4 As shown, in this embodiment, a positioning sleeve 131 is fixedly provided on the bottom surface 132 of the two injection molding components. The inner ring of the positioning sleeve 131 is used to position the core rod 11 so that the core rod 11 and the hollow tube 12 are arranged coaxially. The outer ring of the positioning sleeve 131 is loosely matched with the hollow tube 12, which positions the two injection molding components so that the two injection molding components and the hollow tube 12 also maintain a coaxial position relationship as much as possible. The positioning sleeve 131 includes a plurality of positioning protrusions 1311 spaced apart along the circumference and having an arc-shaped inner wall. A glue injection groove 133 is provided on the bottom surface 132 of the injection molding between the two positioning protrusions 1311 and in the area of ​​the inner ring of the positioning sleeve 131. The core rod 11 is embedded in the inner ring of the positioning sleeve 131. The spacing between the core rod 11 and the inner wall of the hollow tube 12 is uniform and regular, ensuring that the wall thickness of the insulating tube is uniform after molding, effectively guaranteeing product quality. The design of the glue injection groove 133 ensures that the glue inside the tube mold can flow quickly, so that the insulating material on the core rod 11 is fully impregnated with glue.

[0080] In this embodiment, the hollow pipe 12 is placed vertically, and the glue pouring direction is from bottom to top. This design is also to ensure that the insulating material can be fully impregnated with glue.

[0081] The product manufactured in this embodiment has a high surface smoothness and low difficulty in subsequent polishing, which effectively reduces labor intensity and further improves production efficiency; and the product produced has a uniform wall thickness and high product quality.

[0082] Example 4

[0083] On the basis of the above embodiments, this embodiment continues to describe in detail the technical features involved and the functions and roles played by the technical features in the present utility model, so as to help technicians in this field fully understand the technical solution of the present utility model and reproduce it.

[0084] like Figure 1 、 Figures 10-12The glue injection system 25 in this embodiment is located directly below the lower glue injection assembly 14, and includes a jacking mechanism 251 and a glue injection bottom plate 252 supported by the jacking mechanism 251, and a lower glue injection part 253 supported on the glue injection bottom plate 252; the lower glue injection part 253 is provided with a glue inlet channel 2531 for closed communication with the glue filling pipe 254, and an annular channel 2532 for circulating cooling water; the annular channel 2532 is in closed communication with the cooling water pipe 255 sleeved on the outer periphery of the glue filling pipe 254. That is, the glue filling pipe 254 and the cooling water pipe 255 are a large pipe sleeved on a small pipe, the glue filling pipe 254 and the glue inlet channel 2531 form a glue circulation path, the cooling water pipe 255 and the annular channel 2532 form a cooling water circulation path, and the free end of the cooling water pipe 255 is a cooling water inlet / outlet end, and the annular channel 2532 of the lower glue injection part 253 is a cooling water outlet / inlet end. The jacking mechanism 251 is a worm screw lifter. The structure is reasonably and ingeniously designed, and low temperature is maintained in a place where low temperature should be maintained, and high temperature is maintained in a place where high temperature should be maintained.

[0085] The upper hot cutting assembly 23 in this embodiment is fixed on the positioning column 21; the lower hot cutting assembly 26 is fixed on the glue injection bottom plate 252, and the lower hot cutting assembly 26 moves up and down with the glue injection system 25.

[0086] As shown in Figure 1 , Figure 9 , Figure 12 , the sliding clamping mechanism 24 for clamping and moving up and down with the hollow pipe 12 is further fixed on the positioning column 21; the sliding clamping mechanism 24 includes at least one clamping assembly 241 fixed on the sliding plate 242, and the sliding plate 242 is slidably connected to the large slide rail 244 fixed on the positioning column 21 through the large slide block 243; the clamping assembly 241 includes the clamping sliding table cylinder 2411 fixedly connected to the sliding plate 242, the clamping finger cylinder 2412 fixedly arranged on the sliding table of the clamping sliding table cylinder 2411, and the clamping jaws 2413 respectively mounted on the two joint panels of the clamping finger cylinder 2412 and matched with the surface of the hollow pipe 12. The sliding clamping mechanism 24 in this embodiment clamps the pipe mold 1 and simultaneously slides up and down with the pipe mold 1, and the structure is simple and easy to manufacture and implement.

[0087] As shown in Figure 1 , Figure 7 , Figure 8 , Figure 12As shown, the glue overflow system 22 of the embodiment is arranged directly above the upper glue injection assembly 13, and includes a lifting guide seat 221 fixed on the positioning column 21 and having a hollow structure; a glue overflow seat 222 having a glue overflow channel is in clearance fit with the lifting guide seat 221, and the glue overflow channel is communicated with the glue overflow pipe through a glue overflow joint 2221. The glue overflow seat 222 is fixed with a lower limiting plate 224 for limiting and mounting one end of a glue overflow compression spring 223, and the other end of the glue overflow compression spring 223 is limited by an upper limiting plate 225 which is fixed and supported on the lifting guide seat 221 by a glue overflow support 226; the glue overflow seat 222 is further provided with a cold water channel 2222 for circulating cold water. When the lifting mechanism 251 of the glue injection system 25 does not make upward lifting movement, the glue overflow seat 222 falls under the action of the glue overflow compression spring 223, and the upper limiting plate 225 is in contact with the lifting guide seat 221. When the lifting mechanism 251 makes upward lifting movement, the glue overflow seat 222 moves upward, and the glue overflow compression spring 223 contracts. Since the glue overflow seat 222 is very close to the heating seat 261 and the upper glue injection assembly 13, in order to avoid solidification of the glue in the glue overflow channel of the glue overflow seat 222, the cold water channel 2222 for circulating cold water is designed on the glue overflow seat 222. The glue overflow system 22 of the embodiment has the functions of recycling excess glue and buffering, and effectively avoids the rigid impact force of the lifting mechanism 251 on the glue overflow system 22. The glue inlet head of the glue overflow seat 222 and the glue outlet head of the lower glue injection part 253 are both wrapped with a sealing member 2223, and the design of the sealing member 2223 facilitates the sealed fit of the glue inlet head and the glue injection assembly.

[0088] The suspension of the pipe mold 1 of the embodiment is supported by the conveying frame 28 on the assembly line.

[0089] As shown in Figs. Figure 1 and Figure 12 As shown, one side of the glue overflow system 22 of the embodiment is further provided with a glue dripping prevention assembly 27 fixed on the positioning column 21; the glue dripping prevention assembly 27 includes a guide rod air cylinder 271 and a supporting groove 272 fixed on the connecting plate of the guide rod air cylinder 271. After the molding and solidification are completed, the lifting mechanism 251 makes downward movement, and the pipe mold 1 naturally moves downward under the action of gravity until it is lifted by the conveying frame 28. The glue in the glue overflow seat 222 is in liquid state, and in order to avoid glue dripping, when the pipe mold 1 moves away from the glue overflow seat 222, the guide rod air cylinder 271 of the glue dripping prevention assembly 27 starts to act, and pushes the supporting groove 272 to the lower side of the glue overflow seat 222, so as to receive the possible dripping glue.

[0090] In summary, the above is only a preferred embodiment of the utility model, and is not intended to limit the scope of the utility model. Any equivalent changes and modifications made in the shape, structure, features and spirit of the utility model within the scope of the utility model claims shall be included in the scope of the utility model claims.

Claims

1. An insulation operating lever insulation tube concentrated curing dip-free vacuum impregnation device, characterized by: It comprises a heat sealing mechanism (2) and a suspended pipe mold (1); The pipe mold (1) comprises a hollow pipe (12) and glue injection assemblies fixed at both ends of the hollow pipe (12), and the hollow pipe (12) is used for accommodating a core rod (11) wound with insulation material. The heat sealing mechanism (2) comprises a positioning column (21), the top of the positioning column (21) is provided with a glue overflow system (22) used for closed communication with the upper glue injection assembly (13), the upper part of the positioning column (21) is fixedly provided with an upper heat cutting assembly (23) used for high-temperature curing of glue in the upper glue injection assembly (13), and the lower part of the lower glue injection assembly (14) is provided with a glue injection system (25) used for closed communication with the lower glue injection assembly (14), and one side of the lower glue injection assembly (14) is further provided with a lower heat cutting assembly (26) used for high-temperature curing of glue in the lower glue injection assembly (14).

2. The insulated operating lever insulated tube concentrated curing dip-free gel vacuum impregnation device according to claim 1, characterized in that: The upper heat cutting assembly (23) and the lower heat cutting assembly (26) are the same in structure, and each comprises two opposite heating seats (261) in which heating rods are embedded, the opposite surfaces of the two heating seats (261) are provided with contact grooves (2611) matched with the surfaces of the glue injection assemblies, and the two heating seats (261) are fixedly connected with two heat cutting joint panels (2621) of a heat cutting finger cylinder (262), respectively. The cylinder body of the heat cutting finger cylinder (262) is fixedly connected with a moving plate (263), the two sides of the moving plate (263) are provided with side support plates (2651) fixedly connected with heat cutting slides (2641) of a heat cutting slide cylinder (264), respectively. The two side surfaces of the moving plate (263) are fixedly provided with guide rods (266) in gap cooperation with the side support plates (2651), respectively, and the guide rods (266) between the side surface of the moving plate (263) and the side support plates (2651) are sleeved with floating springs (2673). The moving plate (263) is slidably connected with a floating slide rail (2672) fixed on a rear support plate (2652) through a floating sliding block (2671), and the rear support plate (2652) is fixedly connected with the heat cutting slide (2641).

3. The insulated operating lever insulated tube concentrated curing dip-free gel vacuum impregnation device according to claim 2, characterized in that: The heating seat (261) is fixedly connected with the heat cutting joint panel (2621) through a transition connecting block (2681), and a heat insulation pad (2682) is arranged between the transition connecting block (2681) and the heat cutting joint panel (2621).

4. The insulated operating lever insulated tube concentrated curing dip-free gel vacuum impregnation device according to claim 2, characterized in that: The side support plates (2651) are fixedly connected with the rear support plate (2652), and the rear support plate (2652) is fixedly connected with the heat cutting slide (2641) through a heat cutting base (2653).

5. The insulated operating lever insulated tube concentrated curing dip-free gel vacuum impregnation device according to claim 1, characterized in that: The glue injection bottom surfaces (132) of the two glue injection assemblies are fixedly provided with positioning sleeves (131), the inner circle of the positioning sleeve (131) is used for positioning the core rod (11), and the outer circle of the positioning sleeve (131) is in gap cooperation with the hollow pipe (12). The positioning sleeve (131) comprises a plurality of positioning protrusions (1311) which are distributed at intervals in the circumferential direction and have arc-shaped inner walls, and glue injection grooves (133) are arranged on the glue injection bottom surfaces (132) in the regions between the two positioning protrusions (1311) and the inner circle of the positioning sleeve (131).

6. The insulated operating lever insulated tube concentrated curing dip-free gel vacuum impregnation device according to claim 1, characterized in that: The glue injection system (25) is located directly below the lower glue injection assembly (14), which comprises a jacking mechanism (251), a glue injection bottom plate (252) supported by the jacking mechanism (251), and a lower glue injection part (253) supported on the glue injection bottom plate (252); the lower glue injection part (253) is provided with a glue inlet channel (2531) in closed communication with the glue injection pipe (254), and an annular channel (2532) for circulating cooling water; the annular channel (2532) is in closed communication with the cooling water pipe (255) sleeved on the periphery of the glue injection pipe (254).

7. The insulated operating lever insulated tube concentrated curing dip-free gel vacuum impregnation device according to claim 6, characterized in that: The upper hot cutting assembly (23) is fixed on the positioning column (21), and the lower hot cutting assembly (26) is fixed on the glue injection bottom plate (252).

8. The insulated operating lever insulated tube concentrated curing dip-free gel vacuum impregnation device according to claim 1, characterized in that: The positioning column (21) is also provided with a sliding clamping mechanism (24) for clamping and following the upward and downward movement of the hollow pipe (12); The sliding clamping mechanism (24) comprises a sliding plate (242) fixed with at least one clamping assembly (241), and the sliding plate (242) is slidably connected to the large sliding rail (244) fixed on the positioning column (21) through a large sliding block (243); the clamping assembly (241) comprises a clamping sliding table cylinder (2411) fixedly connected to the sliding plate (242), and a clamping finger cylinder (2412) is fixed on the sliding table of the clamping sliding table cylinder (2411); two joint panels of the clamping finger cylinder (2412) are respectively provided with clamping jaws (2413) matched with the surface of the hollow pipe (12).

9. The insulated operating lever insulated tube concentrated curing dipmolding vacuum impregnation device according to claim 1, characterized in that: The glue overflow system (22) is arranged directly above the upper glue injection assembly (13), which comprises a jacking guide seat (221) fixed on the positioning column (21) and having a hollow structure; a glue overflow seat (222) provided with a glue overflow channel is in clearance fit with the jacking guide seat (221), the glue overflow seat (222) is fixedly connected with a lower limiting plate (224) for limiting and mounting one end of a glue overflow compression spring (223), the other end of the glue overflow compression spring (223) is limited by an upper limiting plate (225), and the upper limiting plate (225) is fixedly supported on the jacking guide seat (221) by an overflow support (226); the glue overflow seat (222) is also provided with a cold water channel (2222) for circulating cooling water.

10. The insulated operating lever insulated tube concentrated curing dip-molding vacuum impregnation device according to claim 1 or 9, characterized in that: One side of the glue overflow system (22) is also provided with a glue dripping prevention assembly (27) fixed on the positioning column (21); the glue dripping prevention assembly (27) comprises a guide rod cylinder (271) and a support groove (272) fixed on the connecting plate of the guide rod cylinder (271).

Images