Automatic disassembly and assembly device for barrel flange connection bolts of plastic extruder

Abstract

An automatic disassembly and assembly device for the barrel flange connection bolts of a plastic extruder includes an automatic barrel clamping and releasing mechanism; a front semicircular outer ring and a rear semicircular outer ring, the front semicircular outer ring corresponding to the left side of the automatic barrel clamping and releasing mechanism; a semicircular ring anti-horizontal movement control mechanism connected between the middle of the automatic barrel clamping and releasing mechanism and the opposite side of the middle of the front semicircular outer ring; a front semicircular inner ring and a rear semicircular inner ring, the front semicircular inner ring being fixed to the front semicircular outer ring by spaced-apart front semicircular inner ring fixing arms, and the rear semicircular inner ring being fixed to the rear semicircular outer ring by spaced-apart rear semicircular inner ring fixing arms; and a set of electric wrench mechanisms connected to the left side of the front and rear semicircular outer rings at intervals. Advantages: Reduces the operator's workload in disassembling and assembling the barrel flange connection bolts and improves disassembly and assembly efficiency; meets the requirements for disassembly and assembly of the barrel flange connection bolts; ensures the consistency of the tightness of all barrel flange connection bolts.

Description

Technical Field

[0001] This invention belongs to the technical field of fastener disassembly devices for plastic extrusion machinery, specifically relating to an automatic disassembly and assembly device for the barrel flange connection bolts of a plastic extruder. Background Technology

[0002] The plastic extruders mentioned above primarily refer to, but are not absolutely limited to, extruders for plastic pipes. These extruders typically consist of an extrusion system, a transmission system, and a heating and cooling system. The extrusion system mainly includes a screw, barrel, hopper, die head, and mold. The plastic is plasticized into a melt through this system and then continuously extruded by the screw to the die head. The screw is the main component of the plastic extruder and is usually made of high-strength, corrosion-resistant alloy steel. The barrel is typically a cylindrical tube made of metal such as stainless steel or composite steel. The combined action of the barrel and screw achieves the crushing, softening, melting, plasticizing, degassing, and compaction of the plastic. Since ordinary plastic pipe extruders are known technology and can be found in published Chinese patent documents, such as CN211566886U (an extruder for producing plastic pipes), CN214926925U (a plastic pipe extruder), CN208576172U (a plastic pipe extruder) and CN207617067U (a plastic pipe extruder), the applicant will not elaborate further.

[0003] As is known in the industry, barrel cleaning is typically required in two situations, not limited to the following: First, after a period of use, residue and scale buildup will accumulate inside the barrel, becoming increasingly stubborn and persistent over time. This can damage the equipment and affect product quality, necessitating regular or irregular barrel cleaning. Second, when changing raw materials, barrel cleaning is required beforehand. To clean the barrel, the barrel connecting flanges must be removed, i.e., the bolts securing the flanges to two adjacent barrels must be unloaded. After cleaning, the flanges are reinstalled by tightening them. Since the connection between the barrel and the die head is also primarily a flange connection, the flange connecting the die head and the barrel must also be disassembled when replacing the extruder die head.

[0004] Existing technologies generally rely on manual methods for disassembling and assembling the aforementioned barrel flange connecting bolts. Specifically, workers use tools such as wrenches to remove or install the bolts one by one. This method has several drawbacks: firstly, it is inefficient, which can affect the production efficiency of the plastic extruder; secondly, it requires a high level of physical exertion from the operator; and thirdly, since the barrel flange connecting bolts of a plastic extruder are usually distributed in a circumferential pattern, especially as the diameter of the plastic pipe increases, the number of barrel flange connecting bolts also increases. Because the installation is done manually, it is difficult to ensure the uniformity of the tightness of all the barrel flange connecting bolts, often resulting in uneven tightness, which affects the installation quality of the barrel.

[0005] Chinese Patent Publication No. CN207026924U discloses a "semi-automatic flange bolt synchronous tightening and disassembly device." While this patent is effective for the synchronous tightening and disassembly of flange bolts connecting two flanges in a vertically corresponding relationship, it lacks a structurally sound mechanism for reliably clamping workpieces with flanged ends, such as pipe bodies or shafts. Therefore, it may be ineffective for tightening and disassembling flange bolts on horizontally positioned components, thus revealing the patent's limitations in practical use. Specifically, this patent cannot meet the requirements for disassembling and assembling flange connecting bolts on the barrel of a plastic extruder. Summary of the Invention

[0006] The objective of this invention is to provide an automatic disassembly and assembly device for the barrel flange connection bolts of a plastic extruder, which helps to reduce the workload of operators in disassembling and assembling the barrel flange connection bolts, improves work efficiency, facilitates reliable fixation to the barrel during disassembly and assembly, and helps to ensure the consistency of the tightness of all barrel flange connection bolts during assembly.

[0007] The present invention achieves its objective by providing an automatic disassembly and assembly device for the barrel flange connection bolts of a plastic extruder, comprising an automatic barrel clamping and releasing mechanism; a front semicircular outer ring and a rear semicircular outer ring, wherein the opposite ends of the front and rear semicircular outer rings are hinged to each other, and the opposite ends of the front and rear semicircular outer rings are engaged or disengaged, and the front semicircular outer ring corresponds to the left side of the automatic barrel clamping and releasing mechanism; a semicircular ring anti-horizontal movement control mechanism, which is connected between the middle of the automatic barrel clamping and releasing mechanism and the opposite side of the middle of the front semicircular outer ring; a front semicircular inner ring and a rear semicircular inner ring, wherein the front... The semicircular inner ring is fixed to the front semicircular outer ring via spaced-out fixing arms, with the side corresponding to the front semicircular outer ring facing the rear semicircular outer ring and maintaining a distance between the inner and outer rings of the front semicircular outer ring. The rear semicircular inner ring is fixed to the rear semicircular outer ring via spaced-out fixing arms, with the side corresponding to the rear semicircular outer ring facing the front semicircular outer ring and maintaining a distance between the inner and outer rings of the rear semicircular outer ring. A set of electric wrench mechanisms is connected to the left side of the front and rear semicircular outer rings at intervals and forms a horizontal cantilever state to the right after passing through the front and rear semicircular inner rings.

[0008] In a specific embodiment of the present invention, the automatic clamping and releasing mechanism for the barrel includes an upper arc-shaped clamping ring, a lower arc-shaped clamping ring, an upper barrel abutment plate, a lower barrel abutment plate, a connecting rod for the upper barrel abutment plate, a connecting rod for the lower barrel abutment plate, an arc-shaped clamping ring drive motor, and an arc-shaped clamping ring drive motor mounting base. One end of the upper arc-shaped clamping ring facing the lower arc-shaped clamping ring is folded forward to form an upper arc-shaped clamping ring screw-nut seat, and the other end of the lower arc-shaped clamping ring facing the upper arc-shaped clamping ring is also folded forward to form a lower arc-shaped clamping ring screw-nut seat. The upper and lower arc-shaped clamping ring screw-nut seats correspond vertically to each other. The upper barrel abutment plate... The center position of the upper side of the lower abutment plate is fixed to the lower end of the connecting rod of the upper abutment plate on the barrel. The upper end of the connecting rod is fixed to the lower end of the upper arc-shaped clamping ring away from the screw-fitting nut seat on the lower side. The center position of the lower abutment plate is fixed to the upper end of the connecting rod of the lower abutment plate on the lower side. The lower end of the connecting rod is fixed to the upper end of the lower arc-shaped clamping ring away from the screw-fitting nut seat on the lower side. The arc-shaped clamping ring drive motor is fixed to the top of the arc-shaped clamping ring drive motor mounting base. The drive motor screw shaft of the arc-shaped clamping ring drive motor faces downwards and passes through the arc-shaped clamping ring drive motor mounting base. The drive motor mounting base top plate is simultaneously threaded into the upper arc-shaped clamping ring screw and nut seat threaded holes on both the upper and lower arc-shaped clamping ring screw and nut seat. The lower end of the drive motor screw shaft extends below the lower arc-shaped clamping ring screw and nut seat. The left side of the arc-shaped clamping ring drive motor mounting base and the right side of the front semicircular outer ring are fixedly connected to the semicircular ring anti-horizontal movement control mechanism. The opposing ends of the front and rear semicircular outer rings are hinged together by a semicircular ring hinge pin. The opposing ends of the front and rear semicircular outer rings are connected by a latching and unlocking device on the rear semicircular outer ring. A pair of engaging and disengaging claw grooves are provided on the outer semicircular ring, and the outer semicircular ring corresponds to the left side of the upper and lower arc-shaped clamping rings. The arc lengths of the outer semicircular ring and the outer semicircular ring are equal. The arc lengths of the inner semicircular ring and the inner semicircular ring are equal. In the set of electric wrench mechanisms, the number of connections to the left side of the outer semicircular ring at intervals is equal to the number of connections to the left side of the outer semicircular ring at intervals. An electrical operation control box is provided on the anti-horizontal movement control mechanism of the semicircular ring, and the electrical operation control box is connected to the power supply by wiring. The arc-shaped clamping ring drive motor is electrically connected to the electrical operation control box by wiring.

[0009] In another specific embodiment of the present invention, the arc-shaped clamping ring drive motor is a motor with forward and reverse rotation functions; the helical direction of the thread of the upper arc-shaped clamping ring screw engaging with the nut seat threaded hole is opposite to the helical direction of the thread of the lower arc-shaped clamping ring screw engaging with the nut seat threaded hole; the thread of the drive motor screw shaft at the upper end of the drive motor screw shaft is opposite to the helical direction of the thread of the lower end of the drive motor screw shaft; the thread of the upper end of the drive motor screw engages with the thread of the upper arc-shaped clamping ring screw engaging with the nut seat threaded hole, while the thread of the lower end of the drive motor screw engages with the thread of the lower arc-shaped clamping ring screw engaging with the nut seat threaded hole; the positions of the upper abutment plate and the lower abutment plate of the barrel correspond to each other, and a barrel is formed on the side of the upper abutment plate facing downwards. An upper abutment plate arc-shaped cavity is formed, and a lower abutment plate arc-shaped cavity is formed on the upward-facing side of the lower abutment plate of the barrel. The upper abutment plate arc-shaped cavity and the lower abutment plate arc-shaped cavity correspond to each other. An arc-shaped clamping ring sliding guide cavity building rib is formed on the right side of the arc-shaped clamping ring drive motor fixing seat. The arc-shaped clamping ring sliding guide cavity building rib is located in the middle of the width direction of the arc-shaped clamping ring drive motor fixing seat and extends from the upper part to the lower part of the arc-shaped clamping ring drive motor fixing seat. The area located on the rear side of the arc-shaped clamping ring sliding guide cavity building rib forms the arc-shaped clamping ring sliding guide cavity. The opposite ends of the upper arc-shaped clamping ring and the lower arc-shaped clamping ring slide in contact with the rear side of the arc-shaped clamping ring sliding guide cavity building rib and slide in cooperation with the arc-shaped clamping ring sliding guide cavity.

[0010] In another specific embodiment of the present invention, the semi-circular ring anti-horizontal movement control mechanism includes a slider frame, a left slider, a right slider, a slider pusher block, and a slider electric pusher cylinder. The slider frame is configured with an open slider frame cavity at the top and bottom. A left slider clearance cavity is provided on the left side of the slider frame to allow the slider frame cavity to communicate with the outside. A right slider clearance cavity is provided on the right side of the slider frame, also for allowing the slider frame cavity to communicate with the outside and corresponding to the left slider clearance cavity. A slider left-right sliding engagement cavity is provided on the rear side of the slider frame to allow the slider frame cavity to communicate with the outside. The left slider clearance cavity, the right slider clearance cavity, and the slider left-right sliding engagement cavity are interconnected. The left slider is disposed in the slider frame cavity. The left side of the left slider corresponds to and slides with the left slider clearance cavity. The right side of the left slider slides with the left side of the slider pusher block. The rear side of the left slider slides with the left end of the slider left-right sliding engagement cavity. The right slider is disposed in the slider frame cavity. The right side of the right slider corresponds to and slides into the right slider clearance cavity. The left side of the right slider slides into the right side of the slider pusher block, and the rear side of the right slider slides into the right end of the slider left and right sliding cavity. The slider pusher block is located in the slider frame cavity and between the left and right sliders. The slider electric pusher cylinder is fixed to the front side of the slider frame in a horizontal cantilever state. The slider electric pusher cylinder column extends into the slider frame cavity and connects to the middle of the front side of the slider pusher block. The left side of the arc-shaped clamping ring drive motor fixing seat is fixedly connected to the right side of the right slider at the position corresponding to the right slider clearance cavity. The right side of the front semi-circular outer ring is fixedly connected to the left side of the left slider at the position corresponding to the left slider clearance cavity. The electrical operation control box is fixed to the slider frame at the position corresponding to the control box fixing hole opened on the upward side of the slider frame. The slider electric pusher cylinder is electrically connected to the electrical operation control box by a power connection line.

[0011] In another specific embodiment of the present invention, a slider guide groove is formed on the cavity wall of the left and right sliding cavities on opposite sides along the length direction of the slider, and at corresponding positions. A left slider L-shaped fixing foot is fixed to the left side of the left slider. The right side of the left slider is configured as a left slider slope, and a left slider sliding groove is formed along the length direction of the left slider slope. A left slider sliding ridge is formed on the upper and lower front sides of the left slider, and the left slider sliding ridge slides in cooperation with the left end of the slider ridge guide groove. A right slider L-shaped fixing foot is fixed to the right side of the right slider. The left side of the right slider is configured as a right slider slope, and a right slider sliding groove is formed along the length direction of the right slider slope. A right slider sliding ridge is formed on the upper and lower front sides of the right slider, and the right slider sliding ridge slides in cooperation with the right end of the slider ridge guide groove. A slider push block left-side slope with an inclination direction opposite to that of the left slider slope on the right side of the left slider is formed. Furthermore, a left-side flange of the slider push block is formed on the left inclined surface of the slider push block, which slides in cooperation with the left slider sliding groove. A right-side inclined surface of the slider push block is formed on the right side of the slider push block, with an inclination direction opposite to that of the right slider inclined surface on the left side of the right slider. A right-side flange of the slider push block is formed on the right inclined surface of the slider push block, which slides in cooperation with the right slider sliding groove. A pair of slider electric push cylinder column hinge ears are fixed at the center of the front side of the slider push block. The end of the slider electric push cylinder column is hinged between the pair of slider electric push cylinder column hinge ears through a push cylinder column hinge shaft. The slider electric push cylinder is an electric push cylinder with the function of moving the slider electric push cylinder column together with the slider push block back and forth. The arc-shaped clamping ring drive motor fixing seat is fixedly connected to the right slider L-shaped fixing foot at the position corresponding to the right slider clearance cavity. The right side of the front semi-circular outer ring is fixedly connected to the left slider L-shaped fixing foot at the position corresponding to the left slider clearance cavity.

[0012] In another specific embodiment of the present invention, a front semicircular outer ring hinge ear is formed on one end face of the front semicircular outer ring at a position corresponding to the semicircular ring hinge pin. A front semicircular outer ring hinge ear receiving cavity is formed on the end face of the rear semicircular outer ring facing the front semicircular outer ring at a position corresponding to the front semicircular outer ring hinge ear. The front semicircular outer ring hinge ear extends into the front semicircular outer ring hinge ear receiving cavity, and the front semicircular outer ring hinge ear is hinged to the rear semicircular outer ring within the front semicircular outer ring hinge ear receiving cavity by the semicircular ring hinge pin. On the rear semicircular outer ring, at a position corresponding to the buckle... The locking and unlocking device has a locking and unlocking button hole; a claw tooth flange positioning step cavity is formed on the bottom wall of each of the pair of locking and unlocking claw grooves on the outer ring of the front semicircle; the locking and unlocking device includes a first locking and unlocking claw button I, a second locking and unlocking claw button II, a button spring, a first locking and unlocking claw I and a second locking and unlocking claw II, the first locking and unlocking claw button I and the second locking and unlocking claw button II are slidably disposed in the locking and unlocking button hole at positions corresponding to the left and right ends of the locking and unlocking button hole, respectively, wherein the end of the first locking and unlocking claw button I facing away from the second locking and unlocking claw button II. The second locking / unlocking pawl button II extends from the left side of the rear semicircular outer ring, and the end of the second locking / unlocking pawl button II, facing away from the first locking / unlocking pawl button I, extends from the right side of the rear semicircular outer ring. A first button spring support seat I is formed at the center of the end face of the first locking / unlocking pawl button I facing the second locking / unlocking pawl button II. A second button spring support seat II is formed at the end face of the second locking / unlocking pawl button II facing the first locking / unlocking pawl button I. The button spring is located in the middle of the locking / unlocking button hole, with one end supported on the first button spring support seat I and the other end supported on the second button spring support seat II. The first locking and unlocking claw I is fixed to the middle of the first locking and unlocking claw button I by a mortise and tenon joint at one end, and the second locking and unlocking claw II is fixed to the middle of the second locking and unlocking claw button II by a mortise and tenon joint at one end. The first locking and unlocking claw I and the second locking and unlocking claw II extend outwards in a semi-circular ring towards one end of the pair of locking and unlocking claw grooves and respectively form a first claw tooth flange I and a second claw tooth flange II. The first claw tooth flange I and the second claw tooth flange II are engaged or disengaged from the positioning step cavity of the claw tooth flange.

[0013] In a further specific embodiment of the present invention, the front semicircular outer ring forms a hollow cavity, and the rear semicircular outer ring forms a hollow cavity. The cross-sectional shape of the front and rear semicircular outer rings is rectangular. A power cord lead-out hole for the front semicircular outer ring and a power cord lead-out hole for the rear semicircular outer ring are respectively formed on the outer walls of their opposite ends. In the aforementioned set of electric wrench mechanisms, the wrench is connected to the left side of the front semicircular outer ring at intervals and passes through the... The number of electric wrench mechanisms forming a horizontal cantilever state to the right after the front semicircle inner ring, and the spacing between each pair of adjacent electric wrench mechanisms, are the same as the number and spacing of the electric wrench mechanisms connected to the left side of the rear semicircle outer ring. On the front semicircle inner ring, at intervals corresponding to the positions of the electric wrench mechanisms, there are front semicircle inner ring telescopic rod sleeve clearance cavities, and on the rear semicircle inner ring, at intervals corresponding to the positions of the electric wrench mechanisms, there are also rear semicircle inner ring telescopic rod sleeve clearance cavities.

[0014] In a further specific embodiment of the present invention, pivot head holes are provided on the left side of the outer semicircle of the rear semicircle at intervals corresponding to the positions of the electric wrench mechanisms. Each set of electric wrench mechanisms includes a telescopic rod sleeve pivot head, a telescopic rod sleeve pivot head seat, a telescopic rod, a telescopic spring, a telescopic rod sleeve, a motor sleeve, a motor force spring, a wrench drive motor, and a wrench for removing and installing bolts on the barrel fixing flange. The left end of the telescopic rod sleeve pivot head and the center position of the right side of the telescopic rod sleeve pivot head seat form an integral structure, while the right end of the telescopic rod sleeve pivot head pivot head pivotally engages with the pivot head holes. The telescopic rod sleeve pivot head seat forms a telescopic rod sleeve pivot head seat cavity. The retractable rod sleeve pivot head seat cavity communicates with the telescopic rod sleeve pivot head cavity, which in turn communicates with the hollow cavity of the rear semi-circular outer ring. One end of the telescopic spring is fixed to the middle of the telescopic rod sleeve pivot head seat, while the other end of the telescopic spring is supported on the end of the telescopic rod facing the telescopic rod sleeve pivot head seat. A telescopic rod through hole is formed along the length of the telescopic rod, extending from one end to the other. A telescopic rod fixing seat is fixedly connected to the end of the telescopic rod facing the motor sleeve. This telescopic rod fixing seat is fixed at the center of the motor sleeve cover on the left end of the motor sleeve, which is threaded to it. The telescopic rod fixing seat has a telescopic rod fixing seat cavity. The fixed seat cavity communicates with the through hole of the telescopic rod. The telescopic rod, along with the telescopic rod sleeve fitted outside it, passes through the rear semi-circular inner ring telescopic rod sleeve clearance cavity. The end of the motor sleeve away from the fixed seat of the telescopic rod forms a horizontal cantilever state to the right. A corresponding wrench-driven motor actuating ear sliding groove is provided on the front and rear sides of the middle of the motor sleeve, parallel to the length direction of the motor sleeve. This wrench-driven motor actuating ear sliding groove connects the motor sleeve cavity to the outside, and the motor sleeve cavity communicates with the fixed seat cavity of the telescopic rod. An inwardly folded sleeve retaining edge is formed at the right end of the motor sleeve and around its circumference. The motor force spring is located in the motor sleeve cavity. The left end of the motor force spring abuts against the periphery of the right end face of the motor sleeve cover, while the right end abuts against the left side of the wrench drive motor. The wrench drive motor is located at the right end of the motor sleeve cavity. The wrench drive motor shaft faces to the right. A motor anti-rotation plate is fixed on the wrench drive motor and at a position corresponding to the sliding groove of the wrench drive motor actuating ear. The motor anti-rotation plate extends out of the motor sleeve cavity through the sliding groove of the wrench drive motor actuating ear. The left end of the barrel fixing flange bolt removal and installation wrench is fixed to the shaft of the wrench drive motor, while the right end of the barrel fixing flange bolt removal and installation wrench extends out of the motor sleeve cavity and forms a barrel fixing flange bolt removal and installation mating head.The wrench drive motor is a motor with forward and reverse rotation functions and is electrically connected by a wrench drive motor power connection line. This power connection line passes sequentially through the motor sleeve cavity, the telescopic rod fixing seat cavity, the telescopic rod through hole, the telescopic rod sleeve pivot head seat cavity, the telescopic rod sleeve pivot head cavity, and the hollow cavity of the rear semi-circular outer ring, then exits from the power line lead-out hole of the rear semi-circular outer ring and is electrically connected to the electrical operation control box disposed on the anti-horizontal movement control mechanism of the semi-circular ring.

[0015] In yet another specific embodiment of the present invention, a telescopic rod sleeve limiting mechanism for limiting the telescopic rod sleeve is provided in both the front semicircular inner ring telescopic rod sleeve clearance cavity and the rear semicircular inner ring telescopic rod sleeve clearance cavity. The structure of the telescopic rod sleeve limiting mechanism provided in the front semicircular inner ring telescopic rod sleeve clearance cavity is the same as the structure of the telescopic rod sleeve limiting mechanism provided in the rear semicircular inner ring telescopic rod sleeve clearance cavity.

[0016] In yet another specific embodiment of the present invention, sliding guide grooves for telescopic rod sleeve limiting seat support feet are formed on the left and right cavity walls corresponding to the rear semicircular inner ring telescopic rod sleeve clearance cavity, respectively, and at positions facing each other. The telescopic rod sleeve limiting mechanism includes a first limiting seat spring I, a second limiting seat spring II, and a telescopic rod sleeve limiting seat. The telescopic rod sleeve limiting seat is disposed in the middle of the rear semicircular inner ring telescopic rod sleeve clearance cavity along its length. A telescopic rod sleeve limiting seat through hole is formed in the middle of the telescopic rod sleeve limiting seat for the telescopic rod and the telescopic rod sleeve sleeve sleeved thereon to pass through, and corresponds to the telescopic rod sleeve through groove located at the bottom of the rear semicircular inner ring telescopic rod sleeve clearance cavity. Telescopic rod sleeve limiting seat support feet extend from the left and right ends of the front side and the left and right ends of the rear side of the telescopic rod sleeve limiting seat, and the telescopic rod sleeve limiting seat support feet extend into the telescopic rod sleeve. The telescopic rod sleeve is slidably engaged with the sliding guide groove of the support foot of the telescopic rod sleeve within the sliding guide groove of the support foot of the support foot. The first limiting seat spring I is disposed in the rear semi-circular inner ring telescopic rod sleeve clearance cavity. One end of the first limiting seat spring I abuts against the first clearance cavity wall I of the rear semi-circular inner ring telescopic rod sleeve clearance cavity, while the other end abuts against the wall of the telescopic rod sleeve limiting seat on the side facing the first clearance cavity wall I. The second limiting seat spring II is disposed in the rear semi-circular inner ring telescopic rod sleeve clearance cavity. One end of the second limiting seat spring II abuts against the second clearance cavity wall II of the rear semi-circular inner ring telescopic rod sleeve clearance cavity, while the other end abuts against the wall of the telescopic rod sleeve limiting seat on the side facing the second clearance cavity wall II. The telescopic rod, together with the telescopic rod sleeve sleeved outside it, passes sequentially through the through hole of the telescopic rod sleeve limiting seat and the through groove of the telescopic rod sleeve.

[0017] The technical advantages of the solution provided by this invention are as follows: Because the automatic clamping and releasing mechanism can clamp the barrel of the plastic extruder during use, and because a set of electric wrench mechanisms can work simultaneously to meet the requirements for disassembling and assembling the barrel flange connecting bolts, it helps to reduce the intensity of the operator's work on disassembling and assembling the barrel flange connecting bolts and improves the efficiency of disassembly and assembly; because the automatic clamping and releasing mechanism can reliably clamp onto the barrel, it can meet the requirements for disassembling and assembling the barrel flange connecting bolts; and because the operation of a set of electric wrench mechanisms is synchronized, it helps to ensure the consistency of the tightness of all barrel flange connecting bolts during the assembly process. Attached Figure Description

[0018] Figure 1 This is a structural diagram of an embodiment of the present invention;

[0019] Figure 2 for Figure 1 The diagram shows the rear view of the automatic barrel clamping and releasing mechanism and the semi-circular ring anti-horizontal movement control mechanism.

[0020] Figure 3 for Figure 1 and Figure 2 The detailed structural diagram of the semi-circular ring anti-horizontal movement control mechanism shown is as follows;

[0021] Figure 4 for Figure 1 Enlarged view of part A;

[0022] Figure 5 for Figure 1 Enlarged view of part B;

[0023] Figure 6 for Figure 1 A detailed structural diagram of a set of electric wrenches is shown;

[0024] Figure 7 for Figure 1 The detailed structural diagram of the telescopic rod sleeve limiting mechanism is shown.

[0025] Figure 8 This is a schematic diagram illustrating an application example of the present invention. Detailed Implementation

[0026] In order to better understand the technical essence and beneficial effects of the present invention, the applicant provides a detailed description below by way of embodiments. However, the description of the embodiments is not intended to limit the present invention. Any formal but not substantive equivalent transformations made based on the concept of the present invention should be considered within the scope of the present invention.

[0027] In the following description, all directional or positional concepts involving up, down, left, right, front, and back are, unless otherwise specified, based on... Figure 1 The position and state are based on the location and state, and therefore should not be construed as a special limitation on the technical solution provided by the present invention.

[0028] Please see Figure 1 An automatic clamping and releasing mechanism 1 for a barrel is shown; a front semicircular outer ring 2 and a rear semicircular outer ring 3 are shown, with the opposite ends of the front semicircular outer ring 2 and the rear semicircular outer ring 3 ( Figure 1 The upper ends of the front semicircular outer ring 2 and the rear semicircular outer ring 3 are hinged together, while the other ends of the front semicircular outer ring 2 and the rear semicircular outer ring 3 are opposite each other. Figure 1 The lower end of the ring is shown to engage or disengage with the other end, and the aforementioned front semicircular outer ring 2 corresponds to the left side of the aforementioned automatic barrel clamping and releasing mechanism 1; a semicircular anti-horizontal movement control mechanism 4 is shown, which is connected between the middle of the aforementioned automatic barrel clamping and releasing mechanism 1 and the opposite side of the middle of the aforementioned front semicircular outer ring 2; a front semicircular inner ring 5 and a rear semicircular inner ring 6 are shown, the front semicircular inner ring 5 is on the side corresponding to the aforementioned front semicircular outer ring 2 facing the aforementioned rear semicircular outer ring 3 and maintains a front semicircular inner and outer ring distance of 10a between it and the front semicircular outer ring 2. In the state, the front semicircular inner ring is fixed to the front semicircular outer ring 2 by the spaced-apart front semicircular inner ring fixing arms 51. The rear semicircular inner ring 6 is fixed to the rear semicircular outer ring 3 by the spaced-apart rear semicircular inner ring fixing arms 61, with the rear semicircular outer ring 3 facing the front semicircular outer ring 2 and with a rear semicircular inner and outer ring distance of 10b between them. A set of electric wrench mechanisms 7 is shown. The set of electric wrench mechanisms 7 is connected to the left side of the front semicircular outer ring 2 and the rear semicircular outer ring 3 in a spaced-apart state and forms a horizontal cantilever state to the right after passing through the front semicircular inner ring 5 and the rear semicircular inner ring 6.

[0029] Please see Figure 2 And continue to combine Figure 1The aforementioned automatic barrel clamping and releasing mechanism 1 includes an upper arc-shaped clamping ring 11, a lower arc-shaped clamping ring 12, an upper barrel abutment plate 13, a lower barrel abutment plate 14, an upper barrel abutment plate connecting rod 15a, a lower barrel abutment plate connecting rod 15b, an arc-shaped clamping ring drive motor 16, and an arc-shaped clamping ring drive motor fixing seat 17. The end of the upper arc-shaped clamping ring 11 facing the lower arc-shaped clamping ring 12 is folded forward (also referred to as "bent") to form an upper arc-shaped clamping ring screw engaging with a nut seat 111. The lower arc-shaped clamping ring 12 faces the upper arc-shaped clamping ring 11... The end face is also folded forward (also called "bent") to form a lower arc-shaped clamping ring screw and nut seat 121. The upper arc-shaped clamping ring screw and nut seat 111 and the lower arc-shaped clamping ring screw and nut seat 121 are vertically corresponding to each other. The center position of the upper barrel abutment plate 13 facing upward is fixed to the lower end of the upper barrel abutment plate connecting rod 15a. The upper end of the upper barrel abutment plate connecting rod 15a is fixed to the lower end of the upper arc-shaped clamping ring 11 away from the upper arc-shaped clamping ring screw and nut seat 111. The lower barrel abutment plate 14 faces downward. The upper end of the connecting rod 15b of the lower barrel abutment plate is fixed at the center of one side, while the lower end of the connecting rod 15b of the lower barrel abutment plate is fixed to the side of the lower arc-shaped clamping ring 12 away from the lower arc-shaped clamping ring screw mating nut seat 121 facing upward. The arc-shaped clamping ring drive motor 16 is fixed to the top of the arc-shaped clamping ring drive motor fixing seat 17. The drive motor screw shaft 161 of the arc-shaped clamping ring drive motor 16 faces downward and passes through the top plate 171 of the drive motor fixing seat 17 of the arc-shaped clamping ring drive motor fixing seat 17, and is simultaneously connected to the upper arc-shaped clamping ring. The upper arc-shaped clamping ring screw and nut seat threaded hole 1111 on the clamping ring screw and nut seat 111 and the lower arc-shaped clamping ring screw and nut seat threaded hole 1211 on the lower arc-shaped clamping ring screw and nut seat 121 are threadedly engaged. The lower end of the drive motor screw shaft 161 extends below the aforementioned lower arc-shaped clamping ring screw and nut seat 121. The left side of the arc-shaped clamping ring drive motor fixing seat 17 and the right side of the front semicircular outer ring 2 are fixedly connected to the aforementioned semicircular ring anti-horizontal movement control mechanism 4. The opposing ends of the aforementioned front semicircular outer ring 2 and rear semicircular outer ring 3 are... Figure 1 The upper part shown is hinged to each other by a semi-circular ring hinge pin 21; while the other ends of the front semi-circular outer ring 2 and the rear semi-circular outer ring 3 are... Figure 1The lower end shown is engaged or disengaged by a fastening / unlocking device 31 on the rear semicircular outer ring 3 and a pair of fastening / unlocking claw grooves 22 on the front semicircular outer ring 2. The aforementioned front semicircular outer ring 2 corresponds to the left side of the aforementioned upper arc-shaped clamping ring 11 and lower arc-shaped clamping ring 12. The arc lengths of the aforementioned front semicircular outer ring 2 and the aforementioned rear semicircular outer ring 3 are equal, meaning their lengths are equal, and both are C-shaped. The arc lengths of the aforementioned front semicircular inner ring 5 and the aforementioned rear semicircular inner ring 6 are... Equal, that is, the lengths of the two are equal, and each is C-shaped; in the aforementioned set of electric wrench mechanisms 7, the number of connections to the left side of the aforementioned front semicircular outer ring 2 at intervals is equal to the number of connections to the left side of the aforementioned rear semicircular outer ring 3 at intervals; an electrical operation control box 8 is provided on the aforementioned semicircular ring anti-horizontal movement control mechanism 4, and the electrical operation control box 8 is connected to the power supply by a line; the aforementioned arc-shaped clamping ring drive motor 16 is electrically connected to the electrical operation control box 8 by a line.

[0030] In this embodiment, the aforementioned arc-shaped clamping ring drive motor 16 is a motor with forward and reverse rotation functions; the helical direction of the thread of the upper arc-shaped clamping ring screw engaging with the nut seat threaded hole 1111 is opposite to the helical direction of the thread of the lower arc-shaped clamping ring screw engaging with the nut seat threaded hole 1211; the thread of the drive motor screw shaft 161 at the upper end of the aforementioned drive motor screw shaft 161 is opposite to the helical direction of the thread of the lower end of the drive motor screw shaft; the upper end of the drive motor screw thread engages with the thread of the aforementioned upper arc-shaped clamping ring screw engaging with the nut seat threaded hole 1111, while the lower end of the drive motor screw thread engages with the thread of the aforementioned lower arc-shaped clamping ring screw engaging with the nut seat threaded hole 1211; the positions of the aforementioned upper barrel abutment plate 13 and lower barrel abutment plate 14 correspond to each other, and an upper barrel abutment plate arc-shaped cavity 131 is formed on the downward-facing side of the upper barrel abutment plate 13. On the upward-facing side of the lower barrel abutment plate 14, there is an arc-shaped cavity 141, corresponding to the arc-shaped cavity 131 of the upper barrel abutment plate. On the right side of the aforementioned arc-shaped clamping ring drive motor mounting base 17, there is an arc-shaped clamping ring sliding guide cavity building rib 172, located at the center of the width direction of the arc-shaped clamping ring drive motor mounting base 17. Extending from the upper part to the lower part of the arc-shaped clamping ring drive motor mounting base 17, the area located on the rear side of the arc-shaped clamping ring sliding guide cavity building rib 172 is formed as the arc-shaped clamping ring sliding guide cavity 1721. The opposing ends of the aforementioned upper arc-shaped clamping ring 11 and the aforementioned lower arc-shaped clamping ring 12 slide in contact with the rear side of the arc-shaped clamping ring sliding guide cavity building rib 172 and slide in cooperation with the aforementioned arc-shaped clamping ring sliding guide cavity 1721.

[0031] Depend on Figure 1 As shown, the present invention exemplifies a set of fourteen electric wrench mechanisms 7, with seven connected to the front semicircular outer ring 2 and the rear semicircular outer ring 3. However, this number is merely an example, and therefore should not be considered as the number of electric wrench mechanisms 7 in the present invention being limited to fourteen. Any increase or decrease in the number of electric wrench mechanisms 7 should be considered within the scope of the technical content disclosed in the present invention.

[0032] When using this invention, the operator shall press... Figure 8 The illustration is placed by Figure 8 On the barrel 20 of the die head of the plastic extruder shown, the aforementioned upper barrel abutment plate 13 and lower barrel abutment plate 14 are positioned above and below the barrel 20, respectively, but are not yet clamped to the barrel 20. Next, the operator presses the corresponding button 81 (arc-shaped clamping ring drive motor button) on the aforementioned electrical operation control box 8, causing the aforementioned arc-shaped clamping ring drive motor 16, which is electrically connected to the electrical operation control box 8, to operate clockwise. This causes the drive motor screw shaft 161 to rotate, and the drive motor screw shaft 161 drives the upper and lower arc-shaped clamping ring screws and nut seats 111 and 121 to move towards each other. This causes the upper and lower arc-shaped clamping rings 11 and 12 to respectively drive the upper and lower barrel abutment plates. The connecting rods 15a and 15b cause the upper abutment plate 13 of the barrel to move downwards and press tightly against the barrel 20, while the lower abutment plate 14 of the barrel moves upwards and also presses tightly against the barrel 20. When the operator observes that the upper and lower arc-shaped clamping ring screws and nut seats 111 and 121 are about to engage or determines that the upper and lower abutment plates 13 and 14 of the barrel are tightly pressing against the barrel 20, the operator can stop the arc-shaped clamping ring drive motor 16 by pressing the corresponding button 81. Conversely, the operator can operate (press) another button 81 on the electrical operation control box 8 to make the arc-shaped clamping ring drive motor 16 work counterclockwise, and release the upper and lower abutment plates 13 and 14 from clamping the barrel 20 in the reverse process.

[0033] As a preferred embodiment, a photoelectric sensor, such as a photoelectric switch or other similar sensing element, can be installed on the arc-shaped clamping ring drive motor mounting base 17, positioned between the sides corresponding to the aforementioned upper and lower arc-shaped clamping ring screw and nut seats 111 and 121. When the photoelectric sensor detects that the upper and lower arc-shaped clamping ring screw and nut seats 111 and 121 are in the closed state, it feeds the signal back to the PLA (Programmable Logic Controller) in the electrical control box 8, thereby stopping the arc-shaped clamping ring drive motor 16. Conversely, when it is necessary to release the clamp on the barrel 20, the operator can observe online and press the aforementioned other button 81 to reverse the operation of the arc-shaped clamping ring drive motor 16.

[0034] Please see Figure 3 And combined Figure 1 and Figure 2 The aforementioned semi-circular ring anti-horizontal movement control mechanism 4 includes a slider frame 41, a left slider 42, a right slider 43, a slider pusher block 44, and a slider electric pusher cylinder 45. The slider frame 41 has a slider frame cavity 411 with an open upper part and a bottom part. A left slider clearance cavity 412 is opened on the left side of the slider frame 41 to allow the slider frame cavity 411 to communicate with the outside. A right slider clearance cavity 413 is opened on the right side of the slider frame 41, which is also used to allow the slider frame cavity 411 to communicate with the outside and is located corresponding to the left slider clearance cavity 412. A similar right slider clearance cavity 413 is opened on the rear side of the slider frame 41. The slider left and right sliding engagement cavity 414, which connects the slider holder cavity 411 to the outside, is interconnected with the left slider clearance cavity 412, the right slider clearance cavity 413, and the slider left and right sliding engagement cavity 414. The left slider 42 is disposed within the slider holder cavity 411. The left side of the left slider 42 corresponds to and slides with the left slider clearance cavity 412. The right side of the left slider 42 slides with the left side of the slider push block 44. The rear side of the left slider 42 slides with the left end of the slider left and right sliding engagement cavity 414. The right slider 43 is disposed within the slider holder cavity 411. The right side of the right slider 43 corresponds to and slides into the right slider clearance cavity 413. The left side of the right slider 43 slides into the right side of the slider push block 44, and the rear side of the right slider 43 slides into the right end of the slider left and right sliding engagement cavity 414. The slider push block 44 is located in the aforementioned slider frame cavity 411 and between the aforementioned left slider 42 and right slider 43. The slider electric push cylinder 45 is fixed to the front side of the slider frame 41 in a horizontal cantilever state. The slider electric push cylinder column 451 of the slider electric push cylinder 45 extends into the aforementioned slider frame cavity 411 and slides into the right slider frame cavity 413. The middle part of the front side of the push block 44 is connected; the left side of the aforementioned arc-shaped clamping ring drive motor fixing seat 17 is fixedly connected to the right side of the aforementioned right slider 43 at the position corresponding to the aforementioned right slider clearance cavity 413; the right side of the aforementioned front semi-circular outer ring 2 is fixedly connected to the left side of the aforementioned left slider 42 at the position corresponding to the aforementioned left slider clearance cavity 412; the aforementioned electrical operation control box 8 is fixed to the slider frame 41 at the position corresponding to the control box fixing hole 415 opened on the side of the aforementioned slider frame 41 facing upward; the aforementioned slider electric push cylinder 45 is electrically connected to the electrical operation control box 8 by a power connection line.

[0035] Depend on Figure 2As shown, on the cavity walls of the aforementioned left and right sliding mating cavities 414 along their respective lengths, a slider protrusion guide groove 4141 is provided at corresponding positions. A left slider L-shaped fixing foot 421 is fixed to the left side of the aforementioned left slider 42. The right side of the left slider 42 is configured as a left slider inclined surface, and a left slider sliding groove 422 is provided along the length of this inclined surface. A left slider sliding protrusion 423 is formed on the upper and lower front sides of the left slider 42, and this protrusion 423 slides in engagement with the left end of the aforementioned slider protrusion guide groove 4141. A right slider L-shaped fixing foot 431 is fixed to the right side of the aforementioned right slider 43. The left side of the right slider 43 is configured as a right slider inclined surface, and a right slider sliding groove 432 is provided along the length of this inclined surface. Figure 3 (As shown), a right slider sliding protrusion 433 is formed on the upper front side and the lower front side of the right slider 43, and the right slider sliding protrusion 433 slides in cooperation with the right end of the aforementioned slider protrusion guide groove 4141; the left side of the aforementioned slider push block 44 has a slider push block left slope with an inclination direction opposite to that of the left slider slope on the right side of the aforementioned left slider 42, and a slider push block left flange 441 is formed on the slider push block left slope, which slides in cooperation with the aforementioned left slider sliding groove 422; the right side of the slider push block 44 has a slider push block right slope with an inclination direction opposite to that of the left slider slope on the left side of the aforementioned right slider 43, and a slider push block right flange 442 is formed on the slider push block right slope, which slides in cooperation with the aforementioned right slider sliding groove 432; a pair of slider electric push cylinder column hinge ears 443 are fixed at the center position of the front side of the aforementioned slider push block 44 ( Figure 1 As shown), the end of the aforementioned electric push cylinder column 451 of the slider is hinged between a pair of electric push cylinder column hinge ears 443 of the slider through the push cylinder column hinge shaft 4511. The aforementioned electric push cylinder 45 of the slider is an electric push cylinder with the function of moving the electric push cylinder column 451 of the slider together with the aforementioned slider push block 44 back and forth (i.e., forward or backward displacement function). The aforementioned arc-shaped clamping ring drive motor fixing seat 17 is fixedly connected to the aforementioned right slider L-shaped fixing foot 431 of the right slider at the position corresponding to the aforementioned right slider clearance cavity 413. The right side of the aforementioned front semi-circular outer ring 2 is fixedly connected to the aforementioned left slider L-shaped fixing foot 421 of the left slider at the position corresponding to the aforementioned left slider clearance cavity 412.

[0036] See you later Figures 1 to 3 And combined Figure 8When the operator operates (presses) the button 81 on the electrical operation control box 8 for controlling the electric sliding cylinder 45, the electric sliding cylinder 45, which is electrically connected to the electrical operation control box 8, operates. The electric sliding cylinder column 451 extends outward, i.e., backward, pushing the sliding block 44. The sliding block 44 simultaneously pushes the left sliding block 42 and the right sliding block 43. The L-shaped fixing foot 421 of the left sliding block pushes the front semicircular outer ring 2, while the L-shaped fixing foot 431 of the right sliding block pushes the arc-shaped clamping ring drive motor fixing seat 17. This creates a tight support relationship between the front semicircular outer ring 2 and the arc-shaped clamping ring drive motor fixing seat 17, preventing left or right swaying. Conversely, in a set of electric wrench mechanisms 7, the electric sliding cylinder 45 is engaged by the electric sliding cylinder column 451. Figure 8 After the barrel flange connecting bolts 2011 on the illustrated barrel flange 201 are removed or tightened, the operator operates another button on the electrical operation control box 8 to control the electric push cylinder 45 of the slider, so that the electric push cylinder 45 of the slider works in the opposite direction to the above, and releases the bracing relationship (tightening relationship) between the front semicircular outer ring 2 and the arc-shaped clamping ring drive motor fixing seat 17 according to the reverse process or the reverse principle.

[0037] Please see Figures 4 to 5 And combined Figure 1On one end face of the aforementioned front semicircular outer ring 2, at a position corresponding to the aforementioned semicircular ring hinge pin 21, a front semicircular outer ring hinge ear 23 is formed. On the end face of the rear semicircular outer ring 3 facing the front semicircular outer ring 2, at a position corresponding to the front semicircular outer ring hinge ear 23, a front semicircular outer ring hinge ear receiving cavity 32 is formed. The front semicircular outer ring hinge ear 23 extends into the front semicircular outer ring hinge ear receiving cavity 32 and is hinged to the rear semicircular outer ring 3 within the front semicircular outer ring hinge ear receiving cavity 32 by the aforementioned semicircular ring hinge pin 21. A latching and unlocking button hole 33 is formed on the aforementioned rear semicircular outer ring 3 at a position corresponding to the aforementioned latching and unlocking device 31. The aforementioned pair of latches on the aforementioned front semicircular outer ring 2... Each of the bottom walls of the unlocking claw groove 22 has a claw tooth flange positioning step cavity 221; the preferred, but not absolutely limited, structure of the aforementioned locking and unlocking device 31 is as follows: it includes a first locking and unlocking claw button I 311, a second locking and unlocking claw button II 312, a button spring 313, a first locking and unlocking claw I 314, and a second locking and unlocking claw II 315. The first locking and unlocking claw button I 311 and the second locking and unlocking claw button II 312 are slidably disposed in the locking and unlocking button hole 33 at positions corresponding to the left and right ends of the aforementioned locking and unlocking button hole 33, respectively. The end of the first locking and unlocking claw button I 311 facing away from the second locking and unlocking claw button II 312 protrudes from the left side of the rear semicircular outer ring 3, that is, protrudes from the locking and unlocking button hole 33. The end of the second-engagement unlocking pawl button II 312, facing away from the first-engagement unlocking pawl button I 311, protrudes from the right side of the rear semicircular outer ring 3, thus protruding from the unlocking button hole 33. A first button spring support I 3111 is formed at the center of the end face of the first-engagement unlocking pawl button I 311 facing the second-engagement unlocking pawl button II 312, and a second button spring support II 3121 is formed at the end of the second-engagement unlocking pawl button II 312 facing the first-engagement unlocking pawl button I 311. A button spring 313 is located in the middle of the unlocking button hole 33, with one end of the button spring 313 supported on the first button spring support I 3111 and the other end supported on the second button spring support II 3121. The first locking and unlocking claw I 314 is fixed to the middle of the first locking and unlocking claw button I 311 by means of a tenon and mortise joint. The second locking and unlocking claw II 315 is fixed to the middle of the second locking and unlocking claw button II 312 by means of a tenon and mortise joint. The first locking and unlocking claw I 314 and the second locking and unlocking claw II 315 protrude from the outer semicircular ring 3 of the aforementioned pair of locking and unlocking claw grooves 22 and respectively form a first claw tooth flange I 3141 and a second claw tooth flange II 3151. The first claw tooth flange I 3141 and the second claw tooth flange II 3151 are engaged or disengaged from the aforementioned claw tooth flange positioning step cavity 221.

[0038] To release the locking / unlocking device 31 from its previous engagement with the pair of locking / unlocking claw slots 22, the operator simultaneously presses the first locking / unlocking claw button I 311 and the second locking / unlocking claw button II 312 with two fingers (preferably the thumb and forefinger). The button spring 313 compresses, causing the first locking / unlocking claw I 314 and the second locking / unlocking claw II 315 to move towards each other. This disengages the first claw flange I 3141 and the second claw flange II 3151 from the aforementioned claw flange positioning step cavity 221, unlocking the locking / unlocking device 31 and the pair of locking / unlocking claw slots 22. The lower, opposing ends of the front and rear semicircular outer rings 2 and 3 open. Therefore, the interaction between the locking / unlocking device 31 and the pair of locking / unlocking claw slots 22 resembles the effect of handcuffs.

[0039] Depend on Figure 1 As shown, the aforementioned front semicircular outer ring 2 forms a hollow cavity 24, and the aforementioned rear semicircular outer ring 3 forms a hollow cavity 34. The cross-sectional shape of the front semicircular outer ring 2 and the rear semicircular outer ring 3 is rectangular, and a power line lead-out hole 25 for the front semicircular outer ring 2 and a power line lead-out hole 35 for the rear semicircular outer ring 3 are respectively opened on the outer wall of the opposite ends of the front semicircular outer ring 2 and the rear semicircular outer ring 3. Figure 1 As shown in the diagram, in the aforementioned set of electric wrench mechanisms 7, the number of electric wrench mechanisms 7 connected to the left side of the aforementioned front semicircular outer ring 2 at intervals and forming a horizontal cantilever state to the right after passing through the aforementioned front semicircular inner ring 5 (i.e., the seven mentioned above) and the interval distance between each pair of adjacent electric wrench mechanisms 7 are the same as the number of electric wrench mechanisms 7 connected to the left side of the aforementioned rear semicircular outer ring 3 (i.e., the seven mentioned above) and the interval distance; on the aforementioned front semicircular inner ring 5 and at intervals corresponding to the aforementioned electric wrench mechanisms 7, a front semicircular inner ring telescopic rod sleeve clearance cavity 52 is provided, and on the aforementioned rear semicircular inner ring 6 and similarly at intervals corresponding to the aforementioned electric wrench mechanisms 7, a rear semicircular inner ring telescopic rod sleeve clearance cavity 62 is provided.

[0040] Please see Figure 6 And still combined Figure 1 Based on the above description, since the electric wrench mechanism 7 connected to the front semicircular outer ring 2 has the same structure and connection method as the electric wrench mechanism 7 connected to the rear semicircular outer ring 3, the applicant will now describe the latter in detail. A pivot head hole 36 is provided on the left side of the aforementioned rear semicircular outer ring 3 at a position corresponding to the aforementioned electric wrench mechanism 7. Figure 1(As shown), the aforementioned set of electric wrench mechanisms 7 each includes a telescopic rod sleeve pivot head 71, a telescopic rod sleeve pivot head seat 72, a telescopic rod 73, a telescopic spring 74, a telescopic rod sleeve 75, a motor sleeve 76, a motor force spring 77, a wrench drive motor 78, and a barrel fixing flange bolt removal and installation wrench 79. The left end of the telescopic rod sleeve pivot head 71 and the center position of the right side of the telescopic rod sleeve pivot head seat 72 form an integral structure, while the right end of the telescopic rod sleeve pivot head 71 pivotally engages with the aforementioned pivot head hole 36. The telescopic rod sleeve pivot head seat 72 forms a telescopic rod sleeve pivot head seat cavity 721, which is connected to the telescopic rod sleeve pivot head of the telescopic rod sleeve pivot head 71. The head cavity 711 is connected to the telescopic rod sleeve pivot shaft head cavity 711, which is connected to the aforementioned rear semi-circular outer ring hollow cavity 34. One end of the telescopic spring 74 is fixed to the middle of the telescopic rod sleeve pivot shaft head seat 72, while the other end of the telescopic spring 74 is supported on the end of the telescopic rod 73 facing the telescopic rod sleeve pivot shaft head seat 72. A telescopic rod through hole 731 is formed along the length direction of the telescopic rod 73, extending from one end of the telescopic rod 73 to the other end. A telescopic rod fixing seat 732 is fixedly connected to the end of the telescopic rod 73 facing the motor sleeve 76. The telescopic rod fixing seat 732 is fixed at the center position of the motor sleeve cover 764, which is threaded to the left end of the motor sleeve 76. The telescopic rod fixing seat 732 has a telescopic rod fixing seat cavity 73. 21. The telescopic rod fixing seat cavity 7321 communicates with the aforementioned telescopic rod through hole 731. The aforementioned telescopic rod 73, together with the telescopic rod sleeve 75 sleeved outside it, passes through the aforementioned rear semi-circular inner ring telescopic rod sleeve clearance cavity 62. The end of the motor sleeve 76 away from the telescopic rod fixing seat 732 forms a horizontal cantilever state to the right. On the front side and the rear side of the middle part of the motor sleeve 76, in a state parallel to the length direction of the motor sleeve 76, there are correspondingly positioned wrench drive motor actuating ear sliding grooves 761. The wrench drive motor actuating ear sliding grooves 761 make the motor sleeve cavity 762 of the motor sleeve 76 communicate with the outside, and the motor sleeve cavity 762 communicates with the aforementioned telescopic rod fixing seat cavity 7321. At the right end of the motor sleeve 76 and around The motor sleeve 76 has an inwardly folded sleeve flange 763 in the circumferential direction. The motor force spring 77 is located at the left end of the motor sleeve cavity 762, and the left end of the motor force spring 77 abuts against the periphery of the right end face of the aforementioned motor sleeve cover 764, while the right end abuts against the left side face of the wrench drive motor 78. The wrench drive motor 78 is located at the right end of the motor sleeve cavity 762, and the wrench drive motor shaft 781 of the wrench drive motor 78 faces to the right. A motor anti-rotation plate 782 is fixed on the wrench drive motor 78 at a position corresponding to the aforementioned wrench drive motor actuating ear sliding groove 761. The motor anti-rotation plate 782 extends out of the motor sleeve cavity 762 through the wrench drive motor actuating ear sliding groove 761.The left end of the barrel fixing flange bolt removal and installation wrench 79 is fixed to the wrench drive motor shaft 781, while the right end of the barrel fixing flange bolt removal and installation wrench 79 extends outside the motor sleeve cavity 762 and forms a barrel fixing flange bolt removal and installation mating head 791. The aforementioned wrench drive motor 78 is a motor with forward and reverse rotation functions and is electrically connected to it by a wrench drive motor power connection line. This wrench drive motor power connection line passes sequentially through the aforementioned motor sleeve cavity 762, telescopic rod fixing seat cavity 7321, telescopic rod through hole 731, telescopic rod sleeve pivot shaft head seat cavity 721, telescopic rod sleeve pivot shaft head cavity 711, and the aforementioned rear semi-circular outer ring hollow cavity 34, and then exits from the aforementioned rear semi-circular outer ring power line lead-out hole 35. It is then electrically connected to the aforementioned electrical operation control box 8, which is located on the aforementioned semi-circular ring anti-horizontal movement control mechanism 4, in a single, integrated manner.

[0041] The assembly of certain components of the aforementioned electric wrench mechanism 7 structural system is as follows: First, one end of the telescopic spring 74 is welded to the telescopic rod sleeve pivotally mounted on the shaft head seat 72, and the telescopic spring 74 is reliably connected to or reliably supported on the end of the telescopic rod 73. Then, the telescopic rod sleeve 75 is fitted over the telescopic rod 73, and then the end of the telescopic rod 73 facing the telescopic rod fixing seat 732 is welded to the telescopic rod fixing seat 732. With the motor sleeve cover 764 open, the wrench drive motor 78 and the motor force spring 77 are sequentially installed into the motor sleeve cavity 762. Then, the motor sleeve cover 764, together with the telescopic rod fixing seat 732 fixed thereto, is threadedly fixed to the motor sleeve 76. Finally, the barrel fixing flange bolts are used to fix the wrench 79 to the wrench drive motor shaft 781 and locked (locked) by the locking nut 7811. Of course, the barrel fixing flange bolt removal and installation wrench 79 can also be fixed to the wrench drive motor shaft 781 before the wrench drive motor 78 is installed into the motor sleeve cavity 762, and locked by the locking nut 7811.

[0042] In normal non-working conditions, the aforementioned telescopic spring 74 is essentially in a compressed (contracted) state, while the aforementioned motor force spring 77 is in an extended state, applying a pushing force to the wrench drive motor 78, causing the right end of the wrench drive motor 78 to abut against the aforementioned socket flange 763. When starting work, two fingers can be used to press the wrench drive motor actuating lug sliding groove 761. The wrench drive motor actuating lug sliding groove 761 also restricts the rotation of the wrench drive motor 78 within the motor socket cavity 762, thus preventing self-rotation when disassembling or assembling the machine flange connecting bolts 2011.

[0043] Depend on Figure 1As shown, a telescopic rod sleeve limiting mechanism 9 for limiting the telescopic rod sleeve 75 is provided in the aforementioned front semicircular inner ring telescopic rod sleeve clearance cavity 52 and the rear semicircular inner ring telescopic rod sleeve clearance cavity 62, and the structure of the telescopic rod sleeve limiting mechanism 9 provided in the front semicircular inner ring telescopic rod sleeve clearance cavity 52 is the same as the structure of the telescopic rod sleeve limiting mechanism 9 provided in the rear semicircular inner ring telescopic rod sleeve clearance cavity 62.

[0044] Please see Figure 7 And combined Figure 1 and Figure 4 On the left and right walls of the aforementioned rear semicircular inner ring telescopic rod sleeve clearance cavity 62, facing each other, are respectively formed telescopic rod sleeve limiting seat support foot sliding guide grooves 621; the aforementioned telescopic rod sleeve limiting mechanism 9 includes a first limiting seat spring I 91, a second limiting seat spring II 92, and a telescopic rod sleeve limiting seat 93. The telescopic rod sleeve limiting seat 93 is disposed at the middle of the rear semicircular inner ring telescopic rod sleeve clearance cavity 62 in the length direction. A telescopic rod sleeve limiting seat through hole 931 is provided in the middle for the aforementioned telescopic rod 73 and the aforementioned telescopic rod sleeve 75 sleeved thereon to pass through, and corresponds to the telescopic rod sleeve through groove 622 located at the bottom of the telescopic rod sleeve clearance cavity 62 in the rear semi-circular inner ring. Telescopic rod sleeve limiting seat support feet 932 extend from the left and right ends of the front side and the left and right ends of the rear side of the telescopic rod sleeve limiting seat 93, and the telescopic rod sleeve limiting seat support feet 932 extend into the aforementioned telescopic rod sleeve limiting seat support foot sliding guide groove 621. Furthermore, it slides in cooperation with the sliding guide groove 621 of the telescopic rod sleeve limiting seat support foot. The first limiting seat spring I 91 is disposed in the rear semi-circular inner ring telescopic rod sleeve clearance cavity 62. One end of the first limiting seat spring I 91 abuts against the first clearance cavity wall I 623 of the rear semi-circular inner ring telescopic rod sleeve clearance cavity 62, while the other end of the first limiting seat spring I 91 abuts against the wall of the telescopic rod sleeve limiting seat 93 on the side facing the first clearance cavity wall I 623. The second limiting seat spring II 92 is disposed in the rear semi-circular inner ring telescopic rod sleeve clearance cavity 62. Inside the inner ring telescopic rod sleeve clearance cavity 62, one end of the second limiting seat spring II 92 abuts against the second clearance cavity wall II 624 of the rear semi-circular inner ring telescopic rod sleeve clearance cavity 62, while the other end of the second limiting seat spring II 92 abuts against the wall of the telescopic rod sleeve limiting seat 93 on the side facing the second clearance cavity wall II 624; the aforementioned telescopic rod 73 together with the telescopic rod sleeve 75 sleeved outside it passes through the aforementioned telescopic rod sleeve limiting seat through hole 931 and the aforementioned telescopic rod sleeve through groove 622 in sequence.

[0045] Please see Figure 8 And combined Figures 1 to 3 as well as Figure 6When it is necessary to disassemble or remove the barrel flange connecting bolts 2011 on the barrel flange 201 of the barrel 20, then the present invention shall be arranged according to Figure 8 The schematic configuration, in conjunction with the barrel 20, causes the barrel to automatically clamp and release the release mechanism 1, as described above, and secure it to the barrel 20. Through the engagement and unlocking device 31 and a pair of engagement and unlocking claw slots 22, the front and rear semicircular outer rings 2 and 3 are secured to the barrel 20. Furthermore, according to the applicant's operation of the semicircular ring anti-horizontal movement control mechanism 4, the front and rear semicircular outer rings 2 and 3 are stably secured to the barrel 20 without lateral swaying. Next, a slight force is applied to pull the barrel fixing flange bolt removal wrench 79, which is connected to the wrench drive motor shaft 781 of the wrench drive motor 78, and it is inserted into the internal hexagonal hole at the end of the barrel flange connecting bolt 2011. When the barrel fixing flange bolt removal wrench 79 is pulled to engage with the barrel flange connecting bolt 2011, the aforementioned telescopic spring 74 extends, and the degree of extension is closely related to the degree of displacement of the barrel fixing flange bolt removal wrench 79. After the aforementioned barrel fixing flange bolt removal wrench 79 of the structure system of one of the electric wrench mechanisms 7 has completed its engagement with one barrel flange connecting bolt 2011, it is released. At this time, under the action of the motor force spring 77, the wrench drive motor 78 can be fully displaced to abut against the sleeve retaining edge 763. Figure 6 The degree of engagement (as shown) is such that the barrel fixing flange bolt removal wrench 79, together with the barrel flange connecting bolt 2011, is fully and reliably engaged. Similarly, the barrel fixing flange bolt removal wrench 79 of the structural system (fourteen in this embodiment) connected to the front and rear outer rings 2 and 3 is reliably engaged with the corresponding fourteen barrel flange connecting bolts 2011. It should be noted that if there are ten barrel flange connecting bolts 2011, then ten barrel fixing flange bolt removal wrenches 79 are engaged with them.

[0046] After the above actions are completed, the operator operates the button 81 on the electrical operation control box 8 to control whether the wrench drive motor 78 is working, thereby activating the wrench drive motor 78. The wrench drive motor shaft 781 drives the barrel flange bolt removal wrench 79, which removes the barrel flange connecting bolt 2011. During this process, the wrench drive motor 78 moves towards the motor force spring 77, causing the motor force spring 77 to gradually compress. The degree of compression corresponds to the degree to which the barrel flange connecting bolt 2011 is withdrawn (i.e., "removed") from the barrel flange 20. When the motor force spring 77 no longer compresses, that is, when it is compressed to its limit, it indicates that the barrel flange bolt removal wrench 79 has completed the removal (removal) of the barrel flange connecting bolt 2011.

[0047] Since the disassembly and assembly of the die head flange and the barrel flange 20 are as described above, the applicant will not repeat them. Furthermore, the applicant's above description clearly demonstrates that the structure of this invention can meet the universality requirements for disassembling and assembling barrel flanges 20 of different diameters and different numbers of barrel flange connecting bolts 2011, thus demonstrating good adaptability to barrels and their flange connecting bolts 2011 of different specifications. The die head flange and the barrel flange 20 are the same example.

[0048] As a preferred embodiment, the barrel flange bolt removal wrench 79 is magnetic, so as to attract the barrel flange connecting bolt 2011 removed from the barrel flange 201. Preferably, since the barrel flange bolt removal wrench 79 exemplified in this embodiment is a male wrench, it can be completely replaced with a female wrench. When replaced with a female wrench, an internal hexagonal hole is formed on it to match the external hexagonal head of the barrel flange connecting bolt 2011. Since the installation process of the barrel flange connecting bolt 2011 is the same as described above, except that the wrench drive motor 78 operates in the reverse direction, the applicant will not elaborate further.

[0049] In summary, the technical solution provided by this invention makes up for the shortcomings of the prior art, successfully completes the invention task, and accurately realizes the technical effects described by the applicant in the above technical effects column.

Claims

1. A plastic extruder barrel flange connection bolt automatic dismounting device, characterized in that: The invention comprises a barrel automatic clamping and releasing mechanism (1), a front semicircle outer ring (2) and a rear semicircle outer ring (3), the front semicircle outer ring (2) and the rear semicircle outer ring (3) are hinged to each other at their opposite ends, and the front semicircle outer ring (2) and the rear semicircle outer ring (3) are buckled or unbuckled to each other at their opposite ends, and the front semicircle outer ring (2) corresponds to the left side of the barrel automatic clamping and releasing mechanism (1); a semicircle ring horizontal movement prevention control mechanism (4) is connected between the middle part of the barrel automatic clamping and releasing mechanism (1) and the opposite side of the middle part of the front semicircle outer ring (2); a front semicircle inner ring (5) and a rear semicircle inner ring (6), the front semicircle inner ring (5) is fixed to the front semicircle outer ring (2) through the front semicircle inner ring fixing arms (51) which are distributed at intervals and keep a front semicircle inner and outer ring spacing (10a) between the front semicircle outer ring (2) and the rear semicircle outer ring (3) on the side of the front semicircle outer ring (2) facing the rear semicircle outer ring (3), the rear semicircle inner ring (6) is fixed to the rear semicircle outer ring (3) through the rear semicircle inner ring fixing arms (61) which are distributed at intervals and keep a rear semicircle inner and outer ring spacing (10b) between the rear semicircle outer ring (3) and the front semicircle outer ring (2) on the side of the rear semicircle outer ring (3) facing the front semicircle outer ring (2); a set of electric wrench mechanisms (7) are connected to the left side of the front semicircle outer ring (2) and the rear semicircle outer ring (3) in an interval state and form a horizontal cantilever state to the right after passing through the front semicircle inner ring (5) and the rear semicircle inner ring (6); front semicircle inner ring telescopic rod sleeve accommodation cavities (52) are arranged at intervals on the front semicircle inner ring (5) and correspond to the positions of the electric wrench mechanisms (7), and rear semicircle inner ring telescopic rod sleeve accommodation cavities (62) are arranged at intervals on the rear semicircle inner ring (6) and also correspond to the positions of the electric wrench mechanisms (7); the electric wrench mechanisms (7) comprise a telescopic rod (73) and a telescopic rod sleeve (75), the telescopic rod sleeve (75) is sleeved outside the telescopic rod (73); a telescopic rod sleeve limiting mechanism (9) is arranged in each of the front semicircle inner ring telescopic rod sleeve accommodation cavities (52) and the rear semicircle inner ring telescopic rod sleeve accommodation cavities (62) for limiting the telescopic rod sleeve (75), and the structure of the telescopic rod sleeve limiting mechanism (9) arranged in the front semicircle inner ring telescopic rod sleeve accommodation cavities (52) is the same as that of the telescopic rod sleeve limiting mechanism (9) arranged in the rear semicircle inner ring telescopic rod sleeve accommodation cavities (62); telescopic rod sleeve limiting seat supporting foot sliding guide grooves (621) are formed on the left cavity wall and the right cavity wall of the rear semicircle inner ring telescopic rod sleeve accommodation cavities (62) and correspond to the positions facing each other.The telescopic rod sleeve limiting mechanism (9) comprises a first limiting seat spring I (91), a second limiting seat spring II (92) and a telescopic rod sleeve limiting seat (93). The telescopic rod sleeve limiting seat (93) is arranged at the middle of the length direction of the rear semi-circular inner ring telescopic rod sleeve accommodation cavity (62). A telescopic rod sleeve limiting seat through hole (931) is formed in the middle of the telescopic rod sleeve limiting seat (93) and is used for the telescopic rod (73) to pass through together with the telescopic rod sleeve (75) sleeved outside the telescopic rod (73). The telescopic rod sleeve limiting seat through hole (931) corresponds to the telescopic rod sleeve passing groove (622) at the bottom of the rear semi-circular inner ring telescopic rod sleeve accommodation cavity (62). Telescopic sleeve limiting seat supporting feet (932) are arranged at the front and rear sides of the telescopic rod sleeve limiting seat (93). The telescopic sleeve limiting seat supporting feet (932) are arranged in the telescopic rod sleeve limiting seat supporting foot sliding guide groove (621) and slide with the telescopic rod sleeve limiting seat supporting foot sliding guide groove (621). The first limiting seat spring I (91) is arranged in the rear semi-circular inner ring telescopic rod sleeve accommodation cavity (62). One end of the first limiting seat spring I (91) abuts against the first accommodation cavity wall I (623) of the rear semi-circular inner ring telescopic rod sleeve accommodation cavity (62), and the other end of the first limiting seat spring I (91) abuts against the wall body on the side of the telescopic rod sleeve limiting seat (93) facing the first accommodation cavity wall I (623). The second limiting seat spring II (92) is arranged in the rear semi-circular inner ring telescopic rod sleeve accommodation cavity (62). One end of the second limiting seat spring II (92) abuts against the second accommodation cavity wall II (624) of the rear semi-circular inner ring telescopic rod sleeve accommodation cavity (62), and the other end of the second limiting seat spring II (92) abuts against the wall body on the side of the telescopic rod sleeve limiting seat (93) facing the second accommodation cavity wall II (624). The telescopic rod (73) passes through the telescopic rod sleeve limiting seat through hole (931) and the telescopic rod sleeve passing groove (622) in sequence together with the telescopic rod sleeve (75) sleeved outside the telescopic rod (73).

2. The automatic dismounting device for the barrel flange connecting bolt of the plastic extruder according to claim 1, characterized in that: The machine cylinder automatic clamping and releasing mechanism (1) comprises an upper circular clamping ring (11), a lower circular clamping ring (12), a machine cylinder upper abutting plate (13), a machine cylinder lower abutting plate (14), a machine cylinder upper abutting plate connecting rod (15a), a machine cylinder lower abutting plate connecting rod (15b), a circular clamping ring driving motor (16) and a circular clamping ring driving motor fixing seat (17), the upper circular clamping ring (11) is folded and unfolded forward at one end of the upper circular clamping ring (11) facing the lower circular clamping ring (12) to form an upper circular clamping ring screw nut seat (111), the lower circular clamping ring (12) is also folded and unfolded forward at one end of the lower circular clamping ring (12) facing the upper circular clamping ring (11) to form a lower circular clamping ring screw nut seat (121), the upper circular clamping ring screw nut seat (111) and the lower circular clamping ring screw nut seat (121) correspond to each other, the machine cylinder upper abutting plate (13) is fixed at the lower end of the machine cylinder upper abutting plate connecting rod (15a) at the central position of the upper side of the machine cylinder upper abutting plate (13), the upper end of the machine cylinder upper abutting plate connecting rod (15a) is fixed at the lower end of the machine cylinder upper abutting plate connecting rod (15a) facing the upper side of the one end of the upper circular clamping ring (11) away from the upper circular clamping ring screw nut seat (111), the machine cylinder lower abutting plate (14) is fixed at the upper end of the machine cylinder lower abutting plate connecting rod (15b) at the central position of the lower side of the machine cylinder lower abutting plate (14), the lower end of the machine cylinder lower abutting plate connecting rod (15b) is fixed at the upper end of the machine cylinder lower abutting plate connecting rod (15b) facing the upper side of the one end of the lower circular clamping ring (12) away from the lower circular clamping ring screw nut seat (121), the circular clamping ring driving motor (16) is fixed at the top of the circular clamping ring driving motor fixing seat (17), the driving motor screw shaft (161) of the circular clamping ring driving motor (16) faces downward and is screwed into the upper circular clamping ring screw nut seat screw thread hole (1111) formed in the upper circular clamping ring screw nut seat (111) and the lower circular clamping ring screw nut seat screw thread hole (1211) formed in the lower circular clamping ring screw nut seat (121) after penetrating the driving motor fixing seat top plate (171) of the circular clamping ring driving motor fixing seat (17), and the lower end of the driving motor screw shaft (161) extends below the lower circular clamping ring screw nut seat (121), the left side of the circular clamping ring driving motor fixing seat (17) and the right side of the front half circular outer ring (2) are fixedly connected with the half circular ring horizontal movement prevention control mechanism (4), the front half circular outer ring (2) and the rear half circular outer ring (3) are hingedly connected with each other at the opposite ends of the front half circular outer ring (2) and the rear half circular outer ring (3) through a half circular ring hinged pin shaft (21).And the front half circle outer ring (2) and the rear half circle outer ring (3) of the opposite end through the setting on the rear half circle outer ring (3) on the buckle and unlock device (31) and set in a pair of buckle and unlock claw groove (22) on the front half circle outer ring (2) each other or buckle and unlock, and the said front half circle outer ring (2) corresponding to the left side of the upper circular arc clamping ring (11) and the lower circular arc clamping ring (12), the front half circle outer ring (2) and the arc length of the rear half circle outer ring (3) are equal; The arc length of the front half circle inner ring (5) and the rear half circle inner ring (6) is equal; In the said a set of electric power tool mechanism (7) is in the interval state with the left side of the front half circle outer ring (2) is equal to the number of connection with the left side of the rear half circle outer ring (3) is in the interval state; In the said half circle ring prevent horizontal movement control mechanism (4) is provided with an electrical operation control box (8), the electrical operation control box (8) is connected with power supply by line; The circular arc clamping ring drive motor (16) is electrically connected with the electrical operation control box (8) by line.

3. The apparatus according to claim 2, wherein: The arc-shaped clamping ring driving motor (16) is a motor with forward and reverse rotation functions; the screw direction of the thread of the screw nut seat threaded hole (1111) of the upper arc-shaped clamping ring is opposite to the screw direction of the thread of the screw nut seat threaded hole (1211) of the lower arc-shaped clamping ring, the thread of the driving motor screw shaft (161) at the upper end of the driving motor screw shaft (161) is opposite to the thread of the driving motor screw shaft at the lower end in the screw direction, and the thread of the driving motor screw at the upper end cooperates with the thread of the screw nut seat threaded hole (1111) of the upper arc-shaped clamping ring, while the thread of the driving motor screw at the lower end cooperates with the thread of the screw nut seat threaded hole (1211) of the lower arc-shaped clamping ring; the positions of the upper machine cylinder abutting plate (13) and the lower machine cylinder abutting plate (14) correspond to each other, and the side of the upper machine cylinder abutting plate (13) facing downward is provided with an upper machine cylinder abutting plate arc-shaped cavity (131), and the side of the lower machine cylinder abutting plate (14) facing upward is provided with a lower machine cylinder abutting plate arc-shaped cavity (141), the upper machine cylinder abutting plate arc-shaped cavity (131) and the lower machine cylinder abutting plate arc-shaped cavity (141) correspond to each other; the right side of the arc-shaped clamping ring driving motor fixing seat (17) is provided with an arc-shaped clamping ring sliding guide cavity construction rib (172), the arc-shaped clamping ring sliding guide cavity construction rib (172) is located in the middle of the width direction of the arc-shaped clamping ring driving motor fixing seat (17) and extends from the upper part to the lower part of the arc-shaped clamping ring driving motor fixing seat (17), the area on the rear side of the arc-shaped clamping ring sliding guide cavity construction rib (172) is provided with an arc-shaped clamping ring sliding guide cavity (1721), and the opposite ends of the upper arc-shaped clamping ring (11) and the lower arc-shaped clamping ring (12) are in sliding fit with the arc-shaped clamping ring sliding guide cavity (1721) in the state of sliding and abutting the rear side of the arc-shaped clamping ring sliding guide cavity construction rib (172).

4. The automatic dismounting device for the barrel flange connecting bolt of the plastic extruder according to claim 2, characterized in that: The semi-circular ring horizontal movement prevention control mechanism (4) comprises a slider frame (41), a left slider (42), a right slider (43), a slider pushing block (44) and a slider electric pushing cylinder (45). The slider frame (41) is provided with an upper part and a slider frame cavity (411) with an open bottom. A left slider accommodation cavity (412) is formed on the left side of the slider frame (41) to communicate the slider frame cavity (411) with the outside. A right slider accommodation cavity (413) is formed on the right side of the slider frame (41) to also communicate the slider frame cavity (411) with the outside and is opposite to the left slider accommodation cavity (412). A slider left-right sliding matching cavity (414) is formed on the back side of the slider frame (41) to also communicate the slider frame cavity (411) with the outside. The left slider accommodation cavity (412), the right slider accommodation cavity (413) and the slider left-right sliding matching cavity (414) are interconnected. The left slider (42) is arranged in the slider frame cavity (411). The left side of the left slider (42) is opposite to and in sliding matching with the left slider accommodation cavity (412). The right side of the left slider (42) is in sliding matching with the left side of the slider pushing block (44). The back side of the left slider (42) is in sliding matching with the left end of the slider left-right sliding matching cavity (414). The right slider (43) is arranged in the slider frame cavity (411). The right side of the right slider (43) is opposite to and in sliding matching with the right slider accommodation cavity (413). The left side of the right slider (43) is in sliding matching with the right side of the slider pushing block (44). The back side of the right slider (43) is in sliding matching with the right end of the slider left-right sliding matching cavity (414). The slider pushing block (44) is arranged in the slider frame cavity (411) and is located between the left slider (42) and the right slider (43). The slider electric pushing cylinder (45) is fixed to the front side of the slider frame (41) in a horizontal cantilever state. The slider electric pushing cylinder column (451) of the slider electric pushing cylinder (45) extends into the slider frame cavity (411) and is connected to the middle part of the front side of the slider pushing block (44). The left side of the circular arc clamping ring driving motor fixing seat (17) is fixedly connected to the right side of the right slider (43) at a position corresponding to the right slider accommodation cavity (413). The right side of the front semi-circular outer ring (2) is fixedly connected to the left side of the left slider (42) at a position corresponding to the left slider accommodation cavity (412). The electric operation control box (8) is fixed to the slider frame (41) at a position corresponding to the control box fixing hole (415) formed on the upper side of the slider frame (41). The slider electric pushing cylinder (45) is electrically connected to the electric operation control box (8) by a power supply connecting line.

5. The apparatus according to claim 4, wherein: On the opposite side of the length direction of the cavity wall of the left and right sliding fitting cavity (414) and at the corresponding positions of each other, a sliding groove (4141) is formed. On the left side of the left sliding block (42), a left sliding block L-shaped fixed foot (421) is fixed. The right side of the left sliding block (42) is a left sliding block slope, and a left sliding block sliding groove (422) is formed along the length direction of the left sliding block slope. On the upper and lower front sides of the left sliding block (42), a left sliding block sliding protrusion (423) is formed. The left sliding block sliding protrusion (423) is in sliding cooperation with the left end of the sliding groove (4141). On the right side of the right sliding block (43), a right sliding block L-shaped fixed foot (431) is fixed. The left side of the right sliding block (43) is a right sliding block slope, and a right sliding block sliding groove (432) is formed along the length direction of the right sliding block slope. On the upper and lower front sides of the right sliding block (43), a right sliding block sliding protrusion (433) is formed. The right sliding block sliding protrusion (433) is in sliding cooperation with the right end of the sliding groove (4141). The left side of the sliding block pushing block (44) is a left side slope with an inclination direction opposite to that of the right side of the left sliding block (42). A left side flange (441) is formed on the left side slope. The left side flange (441) is in sliding cooperation with the left sliding block sliding groove (422). The right side of the sliding block pushing block (44) is a right side slope with an inclination direction opposite to that of the left side of the right sliding block (43). A right side flange (442) is formed on the right side slope. The right side flange (442) is in sliding cooperation with the right sliding block sliding groove (432). A pair of sliding block electric pushing cylinder hinged ears (443) are fixed on the central position of the front side of the sliding block pushing block (44). The end of the sliding block electric pushing cylinder (451) is hinged between the pair of sliding block electric pushing cylinder hinged ears (443) through a pushing cylinder hinged shaft (4511). The sliding block electric pushing cylinder (45) is an electric pushing cylinder with a function of moving the sliding block electric pushing cylinder (451) and the sliding block pushing block (44) back and forth. The circular arc clamping ring driving motor fixed seat (17) is fixedly connected with the right sliding block L-shaped fixed foot (431) at a position corresponding to the right sliding block accommodation cavity (413). The right side of the front half circular outer ring (2) is fixedly connected with the left sliding block L-shaped fixed foot (421) at a position corresponding to the left sliding block accommodation cavity (412).

6. The automatic dismounting device for the barrel flange connecting bolt of the plastic extruder according to claim 2, characterized in that: On the end face of the front semicircle outer ring (2) and at the position corresponding to the semicircle ring hinged pin shaft (21), a front semicircle outer ring hinged lug (23) is formed, while on the end face of the rear semicircle outer ring (3) facing the end of the front semicircle outer ring (2) and at the position corresponding to the front semicircle outer ring hinged lug (23), a front semicircle outer ring hinged lug accommodating cavity (32) is formed, the front semicircle outer ring hinged lug (23) is inserted into the front semicircle outer ring hinged lug accommodating cavity (32) and the front semicircle outer ring hinged lug (23) is hinged with the rear semicircle outer ring (3) in the front semicircle outer ring hinged lug accommodating cavity (32) by the semicircle ring hinged pin shaft (21); on the rear semicircle outer ring (3) and at the position corresponding to the buckling unlocking device (31), a buckling unlocking button hole (33) is formed; on the groove bottom wall of the pair of buckling unlocking claw grooves (22) of the front semicircle outer ring (2), a claw tooth flange positioning step cavity (221) is formed respectively;The buckle unlocking device (31) comprises a first buckle unlocking claw button I (311), a second buckle unlocking claw button II (312), a button spring (313), a first buckle unlocking claw I (314) and a second buckle unlocking claw II (315). The first buckle unlocking claw button I (311) and the second buckle unlocking claw button II (312) are slidably arranged in the buckle unlocking button hole (33) at positions corresponding to the left end and the right end of the buckle unlocking button hole (33) respectively, wherein the end of the first buckle unlocking claw button I (311) opposite to the second buckle unlocking claw button II (312) protrudes from the left side surface of the rear semicircular outer ring (3), the end of the second buckle unlocking claw button II (312) opposite to the first buckle unlocking claw button I (311) protrudes from the right side surface of the rear semicircular outer ring (3), a first button spring supporting seat I (3111) is formed at the central position of the end surface of the first buckle unlocking claw button I (311) facing the second buckle unlocking claw button II (312), a second button spring supporting seat II (3121) is formed at the end of the second buckle unlocking claw button II (312) facing the first buckle unlocking claw button I (311), the button spring (313) is located in the middle of the buckle unlocking button hole (33), one end of the button spring (313) is supported on the first button spring supporting seat I (3111), and the other end of the button spring (313) is supported on the second button spring supporting seat II (3121), the first buckle unlocking claw I (314) is inserted and fixed with the middle part of the first buckle unlocking claw button I (311) in a mortise and tenon fitting manner at the end thereof facing the first buckle unlocking claw button I (311), and the second buckle unlocking claw II (315) is also fixed with the middle part of the second buckle unlocking claw button II (312) in a mortise and tenon fitting manner at the end thereof facing the second buckle unlocking claw button II (312), the first buckle unlocking claw I (314) and the second buckle unlocking claw II (315) protrude from the rear semicircular outer ring (3) at the ends thereof facing the pair of buckle unlocking claw grooves (22) and respectively form a first claw tooth flange I (3141) and a second claw tooth flange II (3151), and the first claw tooth flange I (3141) and the second claw tooth flange II (3151) are hooked or unhooked with the claw tooth flange positioning step cavity (221).

7. The automatic dismounting device for the barrel flange connecting bolt of the plastic extruder according to claim 2, characterized in that: The front semicircle outer ring (2) is provided with a front semicircle outer ring hollow cavity (24), the rear semicircle outer ring (3) is provided with a rear semicircle outer ring hollow cavity (34), the cross section shape of the front semicircle outer ring (2) and the rear semicircle outer ring (3) is rectangular, and a front semicircle outer ring power line leading-out hole (25) and a rear semicircle outer ring power line leading-out hole (35) are respectively arranged on the outer wall of the end of the front semicircle outer ring (2) and the rear semicircle outer ring (3) facing each other, and the number of the electrically-driven wrench mechanisms (7) connected to the left side of the front semicircle outer ring (2) in a spaced state and forming a horizontal cantilever state to the right after passing through the front semicircle inner ring (5) and the interval distance between every two adjacent electrically-driven wrench mechanisms (7) are the same as the number of the electrically-driven wrench mechanisms (7) connected to the left side of the rear semicircle outer ring (3) and the interval distance.

8. The automatic dismounting device for the barrel flange connecting bolt of the plastic extruder according to claim 7, characterized in that: On the left side of the rear semicircle outer ring (3) and at the position corresponding to the electric wrench mechanism (7), a pivot shaft head hole (36) is spaced apart and arranged. The electric wrench mechanism (7) further comprises a telescopic rod sleeve pivot shaft head (71), a telescopic rod sleeve pivot shaft head seat (72), a telescopic spring (74), a motor sleeve (76), a motor force spring (77), a wrench driving motor (78) and a machine cylinder fixing flange bolt dismounting wrench (79). The left end of the telescopic rod sleeve pivot shaft head (71) and the central position of the right side of the telescopic rod sleeve pivot shaft head seat (72) form an integral structure, while the right end of the telescopic rod sleeve pivot shaft head (71) is pivotally connected with the pivot shaft head hole (36). The telescopic rod sleeve pivot shaft head seat (72) is provided with a telescopic rod sleeve pivot shaft head seat cavity (721) which is communicated with the telescopic rod sleeve pivot shaft head cavity (711) of the telescopic rod sleeve pivot shaft head (71), and the telescopic rod sleeve pivot shaft head cavity (711) is communicated with the rear semicircle outer ring hollow cavity (34). One end of the telescopic spring (74) is fixed to the middle part of the telescopic rod sleeve pivot shaft head seat (72), while the other end of the telescopic spring (74) is supported on the one end of the telescopic rod (73) which is directed to the telescopic rod sleeve pivot shaft head seat (72). The telescopic rod (73) is provided with a telescopic rod through hole (731) which is penetrated from one end to the other end of the telescopic rod (73) in the length direction, and the telescopic rod (73) is fixedly connected with a telescopic rod fixing seat (732) at the one end which is directed to the motor sleeve (76). The telescopic rod fixing seat (732) is fixedly connected with the motor sleeve cover (764) at the central position of the left end of the motor sleeve (76) through screw connection, and the telescopic rod fixing seat (732) is provided with a telescopic rod fixing seat cavity (7321) which is communicated with the telescopic rod through hole (731). The telescopic rod (73) is penetrated through the rear semicircle inner ring telescopic rod sleeve accommodation cavity (62) together with the telescopic rod sleeve (75) which is sleeved outside the telescopic rod (73). The one end of the motor sleeve (76) which is away from the telescopic rod fixing seat (732) forms a horizontal cantilever state to the right. The motor sleeve (76) is provided with a wrench driving motor pushing ear sliding groove (761) at the middle part of the front side and the middle part of the rear side in parallel to the length direction of the motor sleeve (76). The motor sleeve cavity (762) of the motor sleeve (76) is communicated with the outside through the wrench driving motor pushing ear sliding groove (761), and the motor sleeve cavity (762) is communicated with the telescopic rod fixing seat cavity (7321). The motor sleeve (76) is provided with a sleeve blocking edge (763) which is folded inwardly at the right end and around the circumferential direction of the motor sleeve (76). The motor force spring (77) is arranged at the left end of the motor sleeve cavity (762) and the left end of the motor force spring (77) is abutted against the right end surface of the motor sleeve cover (764), while the right end is abutted against the left side surface of the wrench driving motor (78).The wrench driving motor (78) is arranged at the right end of the motor sleeve cavity (762), the wrench driving motor shaft (781) of the wrench driving motor (78) is towards right, the motor anti-rotation sheet (782) is fixed on the wrench driving motor (78) and at the position corresponding to the wrench driving motor knob sliding groove (761), the motor anti-rotation sheet (782) extends to the outside of the motor sleeve cavity (762) through the wrench driving motor knob sliding groove (761), the left end of the machine cylinder fixed flange bolt dismounting wrench (79) is fixed with the wrench driving motor shaft (781), and the right end of the machine cylinder fixed flange bolt dismounting wrench (79) extends to the outside of the motor sleeve cavity (762) and is provided with a machine cylinder fixed flange bolt dismounting cooperation head (791); the wrench driving motor (78) is a motor with forward and reverse rotation functions and is electrically connected by the wrench driving motor power supply connecting line, the wrench driving motor power supply connecting line is sequentially led out from the rear semicircular outer ring power line leading-out hole (35) through the motor sleeve cavity (762), the telescopic rod fixed seat cavity (7321), the telescopic rod through hole (731), the telescopic rod sleeve pivot shaft head seat cavity (721), the telescopic rod sleeve pivot shaft head cavity (711) and the rear semicircular outer ring hollow cavity (34) and is electrically connected with the electrical operation control box (8) arranged on the semicircular ring horizontal movement prevention control mechanism (4).

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