A continuous automatic cutting device and cutting method for producing thermal insulation pipes

Abstract

The present invention discloses a continuous automatic cutting device for the production of thermal insulation pipes and a cutting method thereof, comprising an external fixing component and an internal component, wherein the external fixing component is installed at the center of the end of an extrusion device for producing and outputting the thermal insulation pipes, the external fixing component is fixedly connected to the extrusion device by fixing bolts, the interior of the extrusion device is provided with a discharge hole, and the internal component is fixedly installed at the center of the discharge hole by screws; the external fixing component comprises a first mounting ring, a second mounting ring and an extrusion fastening ring. The present invention can simultaneously support the inside and outside of the thermal insulation pipe, can strengthen the protection of the thermal insulation pipe, prevent deformation of the incision during cutting, and make the cutting blade gradually extend toward the outside of the internal cutting component, thereby being able to gradually cut the thermal insulation pipe layer by layer, and is conducive to continuous self-cutting of the thermal insulation pipe, greatly improving the efficiency of cutting, and can check and record the number and length of cutting.

Description

Technical Field

[0001] The invention relates to the field of thermal insulation pipe processing equipment, and in particular to a continuous automatic cutting device and a cutting method for thermal insulation pipe production. Background Art

[0002] Insulated pipe is the abbreviation of insulated pipe. Insulated pipe is used for the transportation of liquid, gas and other media. It is used for thermal insulation of pipelines in petroleum, chemical industry, aerospace, hot spring, central heating, central air conditioning, municipal and other industries. The length of the insulation pipe used in different sections is different, so a cutting device is needed to cut it into sections so that it can be used.

[0003] The Chinese utility model patent application number is CN201921720557.7. This utility model discloses an insulation pipe cutting device, including a base, a pipe transport device provided on the base, two support plates fixedly connected to the base, two limit rods symmetrically fixedly connected between the two support plates, and two limit rods are penetrated by two clamps, and both clamps are slidably connected to the limit rods. This utility model starts a stepper motor, and the output end of the stepper motor drives the threaded rod to rotate. The two threaded pipe sleeves are driven by the threaded connection relationship to drive the two clamps to move closer to each other, and the end of the insulation pipe to be cut is fixed between the two clamps. Since the two clamps move in opposite directions, the positioning speed of the insulation pipe is particularly fast, which can greatly reduce the time required for the positioning preparation process before cutting the insulation pipe, and the insulation pipe is assisted in positioning with the help of a pressure plate to ensure a smooth incision.

[0004] When in use, the existing insulation pipe cutting device mostly clamps and fixes the outside of the insulation pipe, and then cuts it from one side of the insulation pipe with a cutting knife. This cutting method easily causes the insulation pipe cut to deform, which is inconvenient for subsequent installation and continuous automatic cutting operations.

[0005] Therefore, it is necessary to invent a continuous automatic cutting device and a cutting method for insulating pipe production to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a continuous automatic cutting device and cutting method for the production of insulation pipes, so as to solve the problems in the prior art that the insulation pipe cuts are easily deformed during cutting, which is inconvenient for subsequent installation and continuous automatic cutting operations.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solution: a continuous automatic cutting device for producing thermal insulation pipes, comprising an external fixing component and an internal component, wherein the external fixing component is mounted at the center of an end portion of an extrusion device for producing and outputting the thermal insulation pipes, the external fixing component being fixedly connected to the extrusion device via fixing bolts, the extrusion device being provided with a discharge hole inside, and the internal component being fixedly mounted at the center of the discharge hole via screws;

[0008] The outer ring is fixed with a first end fixed to the upper end of the gear train, and the outer ring is fixed with a second end fixed to the upper end of the gear train.

[0009] The internal component includes a fixed mounting block, wherein the fixed mounting block is fixedly connected to a worm at one end away from the extrusion device, the end of the worm is fixedly connected to a connecting rod, the end of the connecting rod is fixedly connected to an adjusting block, an internal fixing assembly is installed inside the adjusting block, an internal cutting assembly is provided on the outside of the connecting rod, the internal fixing assembly is fixedly connected to the inside of the adjusting block, the internal fixing assembly includes a hydraulic cylinder installed on the end of the adjusting block, the end of the hydraulic cylinder is fixedly connected to a multi-angle hinge block, the side of the multi-angle hinge block is hinged with an active rotating rod, the end of the active rotating rod is hinged with a driven sliding rod, the driven sliding rod slides inside the internal fixing assembly and extends to the outside of the internal fixing assembly, the end of the driven sliding rod is fixedly connected with an internal fastening sheet, the internal cutting assembly is rotatably connected to the connecting rod, a second motor for driving the internal cutting assembly is installed inside the connecting rod, the internal cutting assembly is slidably connected to a mounting plate, and a cutting knife is detachably mounted on the side of the mounting plate by screws.

[0010] As a preferred solution of the present invention, the outer ring is arranged in a semicircular shape, and the end of the fixed block inside the second mounting ring is also fixedly connected to the outer ring. The outer ring inside the first mounting ring and the outer ring inside the second mounting ring form a circular ring. The end of the fixed ring is fixedly connected to the limiting ring, and the side of the rotating ring is provided with a limiting groove that cooperates with the limiting ring. The limiting ring and the rotating ring are both arranged inside the outer ring.

[0011] As a preferred solution of the present invention, the outer ring is provided in plurality, and a plurality of the outer rings are distributed in a circular array inside the fixed ring. The inner ring corresponds to the outer ring, a slider is provided inside the outer ring, and a sliding groove cooperating with the slider is provided on the outside of the inner ring.

[0012] As a preferred solution of the present invention, a protrusion is fixedly connected to the side of the rotating ring, a spiral groove is provided inside the inner ring, the protrusion cooperates with the spiral groove, a driven gear is provided on the outside of the rotating ring, and the side of the driven gear is meshed with a driving gear, and the driving gear is driven by a first motor installed inside the external fixed component.

[0013] As a preferred solution of the present invention, a plurality of internal fastening sheets are provided, and the plurality of internal fastening sheets are arranged in a circular array about the internal fixing component, the internal fastening sheets and the external fastening sheets cooperate with each other, and the outer surfaces of the internal fastening sheets and the external fastening sheets are both provided with rubber pads, and the plurality of internal fastening sheets and the plurality of external fastening sheets are staggered.

[0014] As a preferred solution of the present invention, an end of the inner fastening plate away from the driven sliding rod is fixedly connected to a plug rod, and an outer wall of the adjustment block is provided with a plug hole corresponding to the plug rod.

[0015] As a preferred solution of the present invention, the rear side of the internal cutting assembly is fixedly connected to a support rod, the internal rotation of the support rod is connected to a screw rod, the end of the screw rod is fixedly connected to a worm wheel engaged with the worm, the outer side of the screw rod is threadedly connected to an adjusting rod, and the end of the adjusting rod is fixedly connected to the mounting plate.

[0016] As a preferred solution of the present invention, a sliding groove is provided on the surface of the internal cutting component, the end of the mounting plate is fixedly connected with a sliding block adapted to the sliding groove, and the end of the cutting knife is located inside the internal component in the retracted state.

[0017] As a preferred solution of the present invention, a displacement sensor is installed at the end of the extrusion device, the output end of the displacement sensor is electrically connected to a single-chip microcomputer through an A / D converter, the output end of the single-chip microcomputer is electrically connected to the first motor, the second motor and the hydraulic cylinder through a D / A converter, and the output end of the single-chip microcomputer is also connected to a display.

[0018] A cutting method of a continuous automatic cutting device for producing thermal insulation pipes, using the above-mentioned continuous automatic cutting device for producing thermal insulation pipes, the processing steps are as follows:

[0019] Step 1: Start the extrusion device. A cooling zone device is provided inside the extrusion device. The cooling zone device cools and solidifies the produced insulation pipe. The extrusion device extrude the solidified insulation pipe through the discharge hole.

[0020] Step 2: The displacement sensor detects the moving length of the insulation pipe in real time. When the moving length reaches the rated length, the controller starts the first motor and the second motor, thereby driving the external fixing assembly and the internal fixing assembly to clamp, fix and support the insulation pipe.

[0021] Step 3: After the external fixing assembly and the internal fixing assembly fix and support the insulation pipe, the controller starts the internal cutting assembly, and the internal cutting assembly drives the cutting knife to cut the insulation pipe;

[0022] Step 4: The controller records the cutting length and the number of cutting times in real time and displays the recorded data on the display.

[0023] In the above technical solution, compared with the prior art, the technical effects and advantages provided by the present invention are:

[0024] 1. The rotating ring is driven to rotate by the first motor, and the rotating ring drives the external fastening piece to expand and contract through the tooth block, so that the external fastening piece expands and contracts toward the inner center of the external fixing component, so that the outer side of the internal insulation pipe can be clamped and fixed. There are multiple external fastening pieces, which can enhance the stable support of the insulation pipe and prevent the insulation pipe from being deformed during cutting. The hydraulic cylinder pushes the internal fastening piece at the end of the driven sliding rod to move outward through the multi-angle hinge block, and then contacts the inner wall of the insulation pipe, so that the inner wall of the insulation pipe can be supported and fixed. The simultaneous support of the inside and outside of the insulation pipe can enhance the protection of the insulation pipe and prevent the incision from being deformed during cutting.

[0025] 2. The internal cutting assembly and the cutting knife are driven to rotate synchronously by the second motor, and the outer side of the cutting knife is provided with a frosted surface, which can perform preliminary grinding on the insulation pipe mouth after cutting, greatly improving the protection of the insulation pipe. While the worm gear at the end of the screw rotates around the worm, the worm gear can realize self-rotation, thereby driving the screw to rotate. The rotation of the screw drives the adjustment rod and the mounting plate to move, thereby driving the cutting knife fixed on the mounting plate to move, so that the cutting knife gradually extends to the outside of the internal cutting assembly, thereby gradually cutting the insulation pipe layer by layer, thereby strengthening the protection of the insulation pipe;

[0026] 3. The displacement length of the insulation pipe is detected in real time through the displacement sensor, and the detection data is uploaded to the single-chip microcomputer in real time through the A / D converter. When the displacement length reaches the rated value, the extrusion device stops running. At this time, the single-chip microcomputer transmits the instruction to the first motor, hydraulic cylinder and second motor through the D / A converter, which is conducive to continuous self-cutting of the insulation pipe, greatly improving the cutting efficiency, and can view and record the number and length of cutting. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments described in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0029] Figure 2 This is a schematic diagram of the structure of the connection between the external fixing component and the internal component of the present invention from a first perspective;

[0030] Figure 3 This is a schematic diagram of the structure of the connection between the external fixing component and the internal component of the present invention from a second perspective;

[0031] Figure 4 This is a schematic diagram of the overall structure of the external fixing assembly of the present invention;

[0032] Figure 5 This is a schematic diagram of the exploded structure of the external fixing assembly of the present invention;

[0033] Figure 6 is a schematic cross-sectional structural diagram of an external fixing assembly of the present invention;

[0034] Figure 7 For the present invention Figure 6 A in the middle is an enlarged structural diagram;

[0035] Figure 8This is a schematic diagram of the connection structure between the extrusion fastening ring and the rotating ring of the present invention;

[0036] Figure 9 This is a schematic diagram of the exploded structure of the extrusion fastening ring and the rotating ring of the present invention;

[0037] Figure 10 For the present invention Figure 9 The enlarged structural diagram at B in the middle;

[0038] Figure 11 This is a schematic diagram of the connection structure between the outer ring and the inner ring of the present invention;

[0039] Figure 12 Schematic diagram of the detailed structure of the external fastening piece of the present invention;

[0040] Figure 13 It is a schematic diagram of the three-dimensional structure of the internal components of the present invention;

[0041] Figure 14 It is a schematic side view of the internal components of the present invention;

[0042] Figure 15 This is a schematic diagram of the three-dimensional structure of the internal cutting component of the present invention;

[0043] Figure 16 It is a schematic diagram of the three-dimensional structure of the internal fixing assembly of the present invention;

[0044] Figure 17 It is a schematic diagram of the structure of the adjustment block and internal fixing components of the present invention;

[0045] Figure 18 This is a system control flow chart of the present invention.

[0046] Description of reference numerals:

[0047] 01. Extrusion device; 02. Discharge hole; 1. External fixing components; 2. Internal components;

[0048] 101. Fixing bolt; 11. First mounting ring; 110. Fixing block; 12. Second mounting ring; 13. Extrusion fastening ring; 131. Fixing ring; 132. Limiting ring; 133. Outer collar; 1331. Slider; 134. Rotating ring; 135. Protrusion; 136. Inner collar; 1361. Gear block; 1362. Slide groove; 1363. Spiral groove; 137. Driving gear; 138. Driven gear; 139. External fastening piece; 1391. Rack; 1392. Limiting strip.

[0049] 21. Fixed mounting block; 22. Worm; 23. Connecting rod; 24. Adjusting block; 25. Internal fixing assembly; 251. Hydraulic cylinder; 252. Multi-angle hinge block; 253. Active rotating rod; 254. Driven sliding rod; 255. Internal fastening plate; 256. Plug rod; 257. Plug hole; 26. Internal cutting assembly; 261. Support rod; 262. Screw; 263. Worm gear; 264. Adjusting rod; 265. Mounting plate; 266. Cutting knife; 267. Sliding groove. DETAILED DESCRIPTION

[0050] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0051] The present invention provides Figure 1-18 The continuous automatic cutting device for producing thermal insulation pipes shown in the figure includes an external fixing component 1 and an internal component 2. The external fixing component 1 is installed at the center of the end of an extrusion device 01 used to produce and output the thermal insulation pipes. The external fixing component 1 is fixedly connected to the extrusion device 01 via a fixing bolt 101. The extrusion device 01 is provided with a discharge hole 02 inside. The internal component 2 is fixedly installed at the center of the discharge hole 02 via a screw.

[0052] Specifically, during installation, the user can install the internal component 2 on the output end of the extrusion device 01 by means of bolts, so that it is fixedly connected to the center position of the discharge hole 02, and then install the external fixing component 1 on the output end of the extrusion device 01 by means of fixing bolts 101, so that the center portion thereof is aligned with the center portion of the output end of the extrusion device 01, and then start the extrusion device 01, and the extrusion device 01 extrude the insulation pipe while cooling and solidifying the insulation pipe. The solidified and solidified pipe is extruded through the discharge hole 02, and the extruded pipe is output through the gap between the external fixing component 1 and the internal component 2;

[0053] The external fixing assembly 1 includes a first mounting ring 11, a second mounting ring 12 and an extrusion fastening ring 13. The extrusion fastening ring 13 is arranged between the first mounting ring 11 and the second mounting ring 12. The first mounting ring 11 and the second mounting ring 12 are both provided with a fixing block 110. The interior of the second mounting ring 12 is fixedly connected to a fixing ring 131. The interior of the first mounting ring 11 is fixedly connected to an outer ring 133. The side of the fixing ring 131 is slidably connected to a rotating ring 134. The outer side of the rotating ring 134 is transmission-connected to an inner ring 136. The inner ring 136 is arranged on the outer The inside of the collar 133 is rotatably connected to the outer collar 133. A tooth block 1361 is provided on the outside of the inner collar 136. The side of the inner collar 136 is transmission-connected to an external fastening piece 139. One end of the outer side of the external fastening piece 139 is fixedly connected to a rack 1391 meshing with the tooth block 1361. The other end of the outer side of the external fastening piece 139 is fixedly connected to a limit strip 1392. The inside of the second mounting ring 12 is provided with a first through groove matching the rack 1391. The inside of the first mounting ring 11 is provided with a second through groove matching the limit strip 1392.

[0054] Specifically, when the first motor is started and the rotating ring 134 is driven to rotate through the driving gear 137, the rotating ring 134 drives the rack 1391 to move through the tooth block 1361, and the rack 1391 drives the external fastening piece 139 to expand and contract, so that the external fastening piece 139 expands and contracts toward the inner center of the external fixing component 1, so that the internal insulation pipe can be clamped and fixed. The external fastening piece 139 is provided with multiple pieces, which can strengthen the stable support of the insulation pipe and prevent the insulation pipe from being deformed during cutting. The rack 1391 on the outer side of the external fastening piece 139 slides inside the first through groove, and the limit bar 1392 slides inside the second through groove, which can make the external fastening piece 139 move smoothly and limit it.

[0055] The internal component 2 includes a fixed mounting block 21, and the end of the fixed mounting block 21 away from the extrusion device 01 is fixedly connected to a worm 22, the end of the worm 22 is fixedly connected to a connecting rod 23, the end of the connecting rod 23 is fixedly connected to an adjusting block 24, an internal fixing component 25 is installed inside the adjusting block 24, and an internal cutting component 26 is provided on the outside of the connecting rod 23. The internal fixing component 25 is fixedly connected to the inside of the adjusting block 24, and the internal fixing component 25 includes a hydraulic cylinder 251 installed at the end of the adjusting block 24, and the end of the hydraulic cylinder 251 is fixedly connected to a multi-angle articulated block 252. The multi-angle articulated block An active rotating rod 253 is hinged on the side of 252, and a driven sliding rod 254 is hinged on the end of the active rotating rod 253. The driven sliding rod 254 slides inside the internal fixing component 25 and extends to the outside of the internal fixing component 25. The end of the driven sliding rod 254 is fixedly connected to the internal fastening piece 255. The internal cutting component 26 is rotatably connected to the connecting rod 23. A second motor for driving the internal cutting component 26 is installed inside the connecting rod 23. The internal cutting component 26 is slidably connected to a mounting plate 265. A cutting knife 266 is detachably mounted on the side of the mounting plate 265 by screws.

[0056] Specifically, the hydraulic cylinder 251 drives the multi-angle hinge block 252 to contract, and the multi-angle hinge block 252 pushes the active rotating rod 253 to rotate outward, and the active rotating rod 253 pushes the driven sliding rod 254 to slide outward, thereby pushing the internal fastening piece 255 at the end of the driven sliding rod 254 to move outward, and then contact the inner wall of the insulation pipe, thereby supporting and fixing the inner wall of the insulation pipe;

[0057] After the external fastening piece 139 and the internal fastening piece 255 respectively fasten the outer wall and inner wall of the insulation, the second motor starts, and the second motor drives the internal cutting assembly 26 to rotate around the connecting rod 23. The connecting rod 23 drives the support rod 261, the screw rod 262, the adjustment rod 264 and the cutting knife 266 to rotate synchronously, and the outer side of the cutting knife 266 is provided with a frosted surface, which can perform preliminary grinding on the insulation pipe mouth after cutting, greatly improving the protective effect of the insulation pipe.

[0058] In the above structure, the outer ring 133 is arranged in a semicircular shape, and the end of the fixed block 110 inside the second mounting ring 12 is also fixedly connected to the outer ring 133. The outer ring 133 inside the first mounting ring 11 and the outer ring 133 inside the second mounting ring 12 form a circular ring. The end of the fixed ring 131 is fixedly connected to the limit ring 132. The side of the rotating ring 134 is provided with a limit groove that cooperates with the limit ring 132. The limit ring 132 and the rotating ring 134 are both arranged inside the outer ring 133.

[0059] Specifically, during installation, the extrusion fastening ring 13 is placed inside the first mounting ring 11, so that the inner ring 136 inside the extrusion fastening ring 13 is engaged with the outer ring 133 inside the first mounting ring 11, and then the second mounting ring 12 is installed on the other side of the inner ring 136, so that the outer ring 133 inside the second mounting ring 12 is engaged with the other side of the inner ring 136, and then the first mounting ring 11 and the second mounting ring 12 are fixedly connected by screws. At this time, the two outer rings 133 surround the inner ring 136 inside.

[0060] Among them, the outer ring 133 is set to be multiple, and the multiple outer rings 133 are distributed in a circular array inside the fixed ring 131. The inner ring 136 corresponds to the outer ring 133. A slider 1331 is provided inside the outer ring 133, and a groove 1362 that cooperates with the slider 1331 is provided on the outside of the inner ring 136. The slider 1331 inside the outer ring 133 slides in the groove 1362 outside the inner ring 136, so that the inner ring 136 is limited when the inner ring 136 rotates.

[0061] The side of the rotating ring 134 is fixedly connected to a protrusion 135, and the inner ring 136 is provided with a spiral groove 1363. The protrusion 135 cooperates with the spiral groove 1363. The outer side of the rotating ring 134 is provided with a driven gear 138. The side of the driven gear 138 is meshed with a driving gear 137. The driving gear 137 is driven by a first motor installed inside the external fixed component 1.

[0062] Specifically, the first motor is started, driving the driving gear 137 to rotate, and the driving gear 137 drives the rotating ring 134 to rotate through the driven gear 138. Since a limiting groove that cooperates with the limiting ring 132 is provided on the side of the rotating ring 134, the rotating ring 134 can be rotated and the rotating ring 134 can be limited so that it rotates around the center point of the external fixed component 1. The rotating ring 134 drives the protrusion 135 to move, and the protrusion 135 cooperates with the spiral groove 1363. When the protrusion 135 enters the spiral groove 1363, it slides inside the spiral groove 1363, thereby driving the inner ring 136 to rotate inside the outer ring 133.

[0063] In the structure, a plurality of internal fastening sheets 255 are provided, and the plurality of internal fastening sheets 255 are arranged in a circular array about the internal fixing assembly 25. The internal fastening sheets 255 cooperate with the external fastening sheets 139, and the outer surfaces of the internal fastening sheets 255 and the external fastening sheets 139 are both provided with rubber pads, and the plurality of internal fastening sheets 255 and the plurality of external fastening sheets 139 are staggered.

[0064] Specifically, when clamping and fixing, since there are multiple internal fastening plates 255 and external fastening plates 139, the protection of the insulation pipe can be expanded, and the rubber pad can improve the protection of the insulation pipe during the fastening process to prevent scratches on the surface of the insulation pipe. The staggered distribution method can improve the stability of the device, and the width of the internal fastening plates 255 and the external fastening plates 139 can be adjusted by the user according to the diameter of the insulation pipe. The larger the contact area between the internal fastening plates 255 and the external fastening plates 139 and the insulation pipe, the better the protection effect.

[0065] In the above structure, the internal fastening piece 255 is fixedly connected to one end away from the driven sliding rod 254 with a plug-in rod 256, and the outer wall of the adjustment block 24 is provided with a plug-in hole 257 corresponding to the plug-in rod 256. When the internal fastening piece 255 moves, the driven sliding rod 254 on the side of the internal fastening piece 255 slides inside the internal fixed component 25, and the plug-in rod 256 slides in the plug-in hole 257, which can limit the internal fastening piece 255.

[0066] The rear side of the internal cutting assembly 26 is fixedly connected to a support rod 261, the interior of the support rod 261 is rotatably connected to a screw rod 262, the end of the screw rod 262 is fixedly connected to a worm wheel 263 meshing with the worm 22, the outer side of the screw rod 262 is threadedly connected to an adjustment rod 264, and the end of the adjustment rod 264 is fixedly connected to a mounting plate 265;

[0067] Specifically, while the worm wheel 263 at the end of the screw rod 262 rotates around the worm 22, the worm wheel 263 is meshed with the worm 22, so that the worm wheel 263 can rotate on its own, thereby driving the screw rod 262 to rotate. The rotation of the screw rod 262 is adjusted by the movement of the adjusting rod 264 in the internal meshing connection. Since the end of the adjusting rod 264 is fixedly connected to the mounting plate 265, and the mounting plate 265 is slidingly connected to the internal cutting component 26, the adjusting rod 264 can be limited. At the same time, the movement of the adjusting rod 264 can drive the cutting knife 266 fixed on the mounting plate 265 to move, so that the cutting knife 266 gradually extends toward the outside of the internal cutting component 26, so that the insulation pipe can be gradually cut layer by layer, thereby strengthening the protection of the insulation pipe.

[0068] Among them, a sliding groove 267 is opened on the surface of the internal cutting component 26, and the end of the mounting plate 265 is fixedly connected with a sliding block adapted to the sliding groove 267. The end of the cutting knife 266 is located inside the internal component 2 in the retracted state, wherein the sliding block slides inside the sliding groove 267 to limit the mounting plate 265, and the cutting knife 266 can be retracted into the internal cutting component 26 in the initial state to prevent the insulation pipe from being scratched and damaged when the insulation pipe is output.

[0069] As a further optimization of the present invention, a displacement sensor is installed at the end of the extrusion device 01. The output end of the displacement sensor is electrically connected to a single-chip microcomputer via an A / D converter. The output end of the single-chip microcomputer is electrically connected to the first motor, the second motor and the hydraulic cylinder 251 via a D / A converter. The output end of the single-chip microcomputer is also connected to a display.

[0070] The displacement sensor detects the displacement length of the insulation pipe in real time, and uploads the detected data to the single-chip microcomputer in real time through the A / D converter. When the displacement length reaches the rated value, the extrusion device 01 stops running. At this time, the single-chip microcomputer transmits the instructions to the first motor, hydraulic cylinder 251 and the second motor through the D / A converter, which is conducive to continuous self-cutting of the insulation pipe and greatly improves the cutting efficiency.

[0071] A cutting method of a continuous automatic cutting device for producing thermal insulation pipes, using the above-mentioned continuous automatic cutting device for producing thermal insulation pipes, the specific processing steps are as follows:

[0072] Step 1: Start the extrusion device 01. A cooling zone device is provided inside the extrusion device 01. The cooling zone device cools and solidifies the produced insulation pipe. The extrusion device 01 extrude the solidified insulation pipe through the discharge hole 02.

[0073] Step 2: The displacement sensor detects the moving length of the insulation pipe in real time. When the moving length reaches the rated length, the controller starts the first motor and the second motor, thereby driving the external fixing component 1 and the internal fixing component 25 to clamp, fix and support the insulation pipe.

[0074] Step 3: After the external fixing assembly 1 and the internal fixing assembly 25 fix and support the insulation pipe, the controller starts the internal cutting assembly 26, and the internal cutting assembly 26 drives the cutting knife 266 to cut the insulation pipe;

[0075] Step 4: The controller records the cutting length and the number of cutting times in real time and displays the recorded data on the display.

[0076] In order to improve the smoothness of the cut edge of the insulation pipe, embodiment 2 is proposed;

[0077] The difference between it and embodiment 1 is that the length of the external fastening piece 139 is greater than the length of the internal fastening piece 255, and a cutting groove is provided inside the external fastening piece 139, which corresponds to the cutting knife 266 and can prevent the incision from being deformed when the insulation pipe is cut from the inside to the outside.

[0078] The above description is merely illustrative of certain exemplary embodiments of the present invention. It goes without saying that those skilled in the art will be able to modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims.

Claims

1. A continuous automatic cutting device for producing thermal insulation pipes, comprising an external fixing component (1) and an internal component (2), characterized in that: The external fixing component (1) is installed at the center of the end of an extrusion device (01) for producing and outputting the insulation pipe, the external fixing component (1) is fixedly connected to the extrusion device (01) by a fixing bolt (101), a discharge hole (02) is provided inside the extrusion device (01), and the internal component (2) is fixedly installed at the center of the discharge hole (02) by a screw; The external fixing assembly (1) comprises a first mounting ring (11), a second mounting ring (12) and an extrusion fastening ring (13), wherein the extrusion fastening ring (13) is arranged between the first mounting ring (11) and the second mounting ring (12), a fixing block (110) is arranged inside the first mounting ring (11) and the second mounting ring (12), a fixing ring (131) is fixedly connected inside the second mounting ring (12), an outer ring (133) is fixedly connected inside the first mounting ring (11), a side of the fixing ring (131) is slidably connected to a rotating ring (134), an outer side of the rotating ring (134) is transmission-connected to an inner ring (136), and the inner ring (13 6) is arranged inside the outer sleeve (133) and is rotatably connected to the outer sleeve (133), a tooth block (1361) is provided on the outer side of the inner sleeve (136), and the side of the inner sleeve (136) is transmission-connected with an external fastening piece (139), one end of the outer side of the external fastening piece (139) is fixedly connected with a rack (1391) meshing with the tooth block (1361), and the other end of the outer side of the external fastening piece (139) is fixedly connected with a limit strip (1392), the interior of the second mounting ring (12) is provided with a first through groove matching with the rack (1391), and the interior of the first mounting ring (11) is provided with a second through groove matching with the limit strip (1392); The internal component (2) includes a fixed mounting block (21), the end of the fixed mounting block (21) away from the extrusion device (01) is fixedly connected to a worm (22), the end of the worm (22) is fixedly connected to a connecting rod (23), the end of the connecting rod (23) is fixedly connected to an adjustment block (24), an internal fixing component (25) is installed inside the adjustment block (24), an internal cutting component (26) is provided on the outside of the connecting rod (23), the internal fixing component (25) is fixedly connected to the inside of the adjustment block (24), the internal fixing component (25) includes a hydraulic cylinder (251) installed at the end of the adjustment block (24), the end of the hydraulic cylinder (251) is fixedly connected to a multi-angle articulated block (252), the The side of the multi-angle hinge block (252) is hinged with an active rotating rod (253), and the end of the active rotating rod (253) is hinged with a driven sliding rod (254). The driven sliding rod (254) slides inside the internal fixing component (25) and extends to the outside of the internal fixing component (25). The end of the driven sliding rod (254) is fixedly connected with an internal fastening plate (255). The internal cutting component (26) is rotatably connected to the connecting rod (23). A second motor for driving the internal cutting component (26) is installed inside the connecting rod (23). The internal cutting component (26) is slidably connected to a mounting plate (265). A cutting knife (266) is detachably mounted on the side of the mounting plate (265) by screws.

2. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: The outer ring (133) is arranged in a semicircular shape, and the end of the fixed block (110) inside the second mounting ring (12) is also fixedly connected to the outer ring (133). The outer ring (133) inside the first mounting ring (11) and the outer ring (133) inside the second mounting ring (12) form a circular ring. The end of the fixed ring (131) is fixedly connected to the limiting ring (132). The side of the rotating ring (134) is provided with a limiting groove that matches the limiting ring (132). The limiting ring (132) and the rotating ring (134) are both arranged inside the outer ring (133).

3. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: The outer ring (133) is provided in plurality, and the plurality of outer rings (133) are distributed in a circular array inside the fixed ring (131). The inner ring (136) corresponds to the outer ring (133). A slider (1331) is provided inside the outer ring (133), and a slide groove (1362) that cooperates with the slider (1331) is provided on the outer side of the inner ring (136).

4. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: A protrusion (135) is fixedly connected to the side of the rotating ring (134); a spiral groove (1363) is provided inside the inner ring (136); the protrusion (135) cooperates with the spiral groove (1363); a driven gear (138) is provided on the outside of the rotating ring (134); a driving gear (137) is meshed with the side of the driven gear (138); and the driving gear (137) is driven by a first motor installed inside the external fixed component (1).

5. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: There are a plurality of internal fastening sheets (255), and the plurality of internal fastening sheets (255) are arranged in a ring array with respect to the internal fixing assembly (25). The internal fastening sheets (255) and the external fastening sheets (139) cooperate with each other, and the outer surfaces of the internal fastening sheets (255) and the external fastening sheets (139) are both provided with rubber pads, and the plurality of internal fastening sheets (255) and the plurality of external fastening sheets (139) are staggeredly distributed.

6. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: An inserting rod (256) is fixedly connected to one end of the internal fastening piece (255) away from the driven sliding rod (254), and an inserting hole (257) corresponding to the inserting rod (256) is formed on the outer wall of the adjustment block (24).

7. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: The rear side of the internal cutting assembly (26) is fixedly connected to a support rod (261), the interior of the support rod (261) is rotatably connected to a screw rod (262), the end of the screw rod (262) is fixedly connected to a worm wheel (263) meshing with the worm (22), the outer side of the screw rod (262) is threadedly connected to an adjustment rod (264), and the end of the adjustment rod (264) is fixedly connected to a mounting plate (265).

8. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: A sliding groove (267) is provided on the surface of the internal cutting component (26), and a sliding block adapted to the sliding groove (267) is fixedly connected to the end of the mounting plate (265), and the end of the cutting knife (266) is located inside the internal component (2) in a retracted state.

9. The continuous automatic cutting device for producing thermal insulation pipes according to claim 1, characterized in that: A displacement sensor is installed at the end of the extrusion device (01); the output end of the displacement sensor is electrically connected to a single-chip microcomputer via an A / D converter; the output end of the single-chip microcomputer is electrically connected to the first motor, the second motor and the hydraulic cylinder (251) via a D / A converter; and the output end of the single-chip microcomputer is also connected to a display.

10. A cutting method using a continuous automatic cutting device for producing thermal insulation pipes, using the continuous automatic cutting device for producing thermal insulation pipes according to any one of claims 1 to 9, characterized in that: The processing steps are as follows: Step 1: starting the extrusion device (01), wherein a cooling zone device is provided inside the extrusion device (01), and the cooling zone device cools and solidifies the produced insulation pipe, and the extrusion device (01) extrude the solidified insulation pipe through the discharge hole (02); Step 2: The displacement sensor detects the moving length of the insulation pipe in real time. When the moving length reaches the rated length, the controller starts the first motor and the second motor, thereby driving the external fixing component (1) and the internal fixing component (25) to clamp, fix and support the insulation pipe. Step 3: After the external fixing component (1) and the internal fixing component (25) fix and support the insulation pipe, the controller starts the internal cutting component (26), and the internal cutting component (26) drives the cutting knife (266) to cut the insulation pipe; Step 4: The controller records the cutting length and the number of cutting times in real time and displays the recorded data on the display.

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