Electric locking device of conveyor belt extrusion die

Abstract

The utility model relates to the technical field of electric locking of a die conveyed to the end of an extruder, in particular to an electric locking device for a conveyor belt extrusion die, which comprises a U-shaped mounting box, and a bidirectional driving unit is mounted in a mounting cavity of the U-shaped mounting box. The outer end of each bidirectional driving unit movably penetrates out of the U-shaped mounting box and is fixedly connected with the end of a driving nut, a U-shaped cavity used for being connected to the two sides of the connecting portion of a conveying belt extrusion die and an extruder in a clamped mode is formed in the middle of the U-shaped mounting box, and clamping pieces are symmetrically arranged on the left side and the right side of the U-shaped cavity respectively. The bidirectional driving unit is driven by the operating hand wheel, synchronous movement of the clamping pieces on the two sides is achieved, compared with a traditional mode that nuts are screwed at the two ends of a bolt respectively, large nuts on the two sides do not need to be manually and independently screwed, the clamping and positioning operation process is simplified, and work efficiency is improved. In the installation scene of the connecting part of the conveying belt extrusion die and the extruder, clamping and positioning can be rapidly completed, and the installation time is shortened.

Description

Technical Field

[0001] This utility model relates to the field of electric locking technology for conveying to the end die of an extruder, and in particular to an electric locking device for conveyor belt extrusion die. Background Technology

[0002] The end of the conveyor belt extrusion die usually needs to be connected to the extrusion head of the extruder during operation. This is because the extruder extrudes the molten material through a screw and other devices. The close connection between the die end and the extruder ensures that the material can smoothly and stably enter the flow channel of the die and then be formed into the required conveyor belt shape by the die.

[0003] Currently, when connecting the two, the bolt in the bolt is usually passed through the bolt holes of both parts and tightened by the nuts on both sides. This requires manual tightening, and because the nuts are large, an additional wrench is needed to tighten them, making the operation difficult and laborious.

[0004] A search revealed a locking device for a flame-retardant conveyor belt extrusion die, disclosed in patent application number CN205167490U. Its main structure includes a mounting plate fixed on the extrusion die, a U-shaped groove on the mounting plate, bolts and nuts, a cuboid clamping plate welded to the bolts, and two parallel baffles of the same size fixed on both sides of the clamping plate.

[0005] It can be seen that the locking device in the existing patent needs to be set with a slot structure, which is not consistent with the screw hole on the traditional extrusion die. Therefore, it is necessary to specially improve the connection slot. This structure cannot be used when applied to equipment with traditional bolt connection, and the equipment needs to be modified, which increases the cost of use.

[0006] Based on this, the present invention has made improvements to address the problems existing in the prior art. Specifically, an electric locking device for conveyor belt extrusion dies that can be matched with existing extruders and extrusion die ends is designed to better solve the problems existing in the prior art. Utility Model Content

[0007] To solve one of the aforementioned technical problems, the present invention provides the following technical solution: an electric locking device for a conveyor belt extrusion die, comprising a U-shaped mounting box. A bidirectional drive unit is installed within the mounting cavity of the U-shaped mounting box. The outer ends of each bidirectional drive unit extend movably outwards to the outside of the U-shaped mounting box and are fixedly connected to the end of a drive nut. Sealing plates are bolted and fixed to the front and rear ends of the U-shaped mounting box. The bottom of each bidirectional drive unit extends movably to the bottom of the U-shaped mounting box and is coaxially fixedly connected to an operating handwheel. A U-shaped cavity is provided in the middle of the U-shaped mounting box for clamping onto both sides of the connection between the conveyor belt extrusion die and the extruder. Clamping members are symmetrically arranged on the left and right sides of the U-shaped cavity. The two clamping members cooperate to clamp and position the connection between the conveyor belt extrusion die and the extruder.

[0008] In any of the above embodiments, preferably, the bidirectional drive unit includes a horizontal bevel gear installed horizontally inside the U-shaped mounting box, with a vertical bevel gear meshing at each end of the horizontal bevel gear. The lower end of the vertical shaft of the horizontal bevel gear extends movably to the bottom of the U-shaped mounting box and is coaxially fixed to the operating handwheel. The outer end of the horizontal shaft of each vertical bevel gear extends movably to the outside of the U-shaped mounting box and is used to be fixed to the corresponding drive nut. The through holes at the center of the horizontal shaft and the horizontal bevel gear are all connected, with their outer ends communicating with the central threaded hole of the drive nut. A screw is screwed into the central threaded hole of the drive nut, and the inner end of the screw passes through the through holes on the horizontal shaft, the vertical bevel gear, and the U-shaped mounting box and extends into the U-shaped cavity to be fixed to the clamping member.

[0009] In any of the above embodiments, it is preferred that the clamping member includes a sliding clamping seat that is fitted to the end of the screw. The inner end of the screw is movably fitted into the stepped circular hole of the sliding clamping seat of the clamping member through a stepped shaft. The stepped shaft rotates with the screw. The bottom of the sliding clamping seat abuts against the bottom of the U-shaped cavity. An insert plug is installed on the inner sidewall of the sliding clamping seat. The insert plug is used to fit into the original screw hole at the connection between the conveyor belt extrusion die and the extruder.

[0010] In any of the above embodiments, it is preferred that the external threads of the two screws have opposite directions and that the two screws are either close to or far from each other in the working state.

[0011] In any of the above embodiments, it is preferred that a hexagonal prism blind hole is provided at the bottom center of the vertical wheel axle, the hexagonal prism blind hole being used to cooperate with an external electric drill drive head or a hexagonal prism screwdriver.

[0012] In any of the above embodiments, it is preferred that each of the insert plugs is detachably screwed into the threaded hole of the sliding clamp.

[0013] In any of the above embodiments, it is preferred that the inner end face of each of the drive nuts movably abuts against the corresponding outer side wall of the U-shaped mounting box.

[0014] In any of the above solutions, it is preferred that the external thread of the screw is a trapezoidal external thread.

[0015] In any of the above embodiments, it is preferred that the U-shaped mounting box is filled with lubricating oil.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] 1. This utility model uses a handwheel to drive a bidirectional drive unit, thereby achieving synchronous movement of the clamping components on both sides. Compared to the traditional method of screwing nuts onto both ends of a bolt separately, it eliminates the need for manual tightening of the large nuts on both sides, significantly simplifying the clamping and positioning operation process and improving work efficiency. For example, in the installation scenario of the connection between the conveyor belt extrusion die and the extruder, clamping and positioning can be completed quickly, reducing installation time.

[0018] 2. The stepped shaft at the inner end of the screw mates with the stepped circular hole of the sliding clamp, enabling precise conversion between screw rotation and sliding clamp translation. Simultaneously, the bottom of the sliding clamp always rests against the bottom of the U-shaped cavity, ensuring smooth movement, accurate positioning during clamping, and a stable connection after clamping, effectively preventing loosening or shaking and ensuring safe and reliable equipment operation.

[0019] 3. The insert plug mates with the existing threaded holes at the connection points of the conveyor belt extrusion die and extruder, eliminating the need for additional machining of the connection points. This makes it suitable for various connection points of different specifications but with the same threaded hole layout, reducing equipment adaptation costs and improving the versatility of the device. This means that the device can be used without modification when connecting different models of conveyor belt extrusion dies and extruders.

[0020] 4. The bidirectional drive unit adopts a structure that combines horizontal and vertical bevel gears, which ingeniously realizes power transmission and motion conversion. The reasonable layout within the limited space of the U-shaped mounting box makes the entire device compact, reduces space occupation, and facilitates installation and maintenance.

[0021] 5. In addition to manually rotating the operating handwheel for clamping and releasing, a hexagonal prism blind hole is also provided, which can be used with an electric drill drive head or a hexagonal prism screwdriver to achieve rapid operation. Furthermore, if a slight deviation is found in the connection part during the clamping process, the operating handwheel can be finely adjusted for precise adjustment, meeting different working scenarios and precision requirements, thus enhancing the practicality of the device. Attached Figure Description

[0022] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or components are generally identified by similar reference numerals. In the drawings, the elements or components are not necessarily drawn to scale.

[0023] Figure 1 This is a structural diagram illustrating the installation process of this utility model.

[0024] Figure 2 This is a schematic diagram of the structure of this utility model.

[0025] Figure 3 This is a schematic diagram of the internal structure of this utility model.

[0026] Figure 4 This is a partial structural schematic diagram of the present invention.

[0027] Figure 5 This is a bottom view schematic diagram of the vertical wheel axle and the operating handwheel of this utility model.

[0028] Figure 6 This is a schematic diagram of the internal structure of the mating part between the stepped shaft and the stepped circular hole of this utility model.

[0029] Parts list: 1. U-shaped mounting box; 2. Drive nut; 3. Sealing cover plate; 4. Operating handwheel; 5. U-shaped cavity; 6. Insert plug; 7. Horizontal bevel gear; 701. Vertical wheel axle; 8. Vertical bevel gear; 801. Horizontal wheel axle; 9. Screw; 10. Sliding clamping seat; 11. Stepped shaft; 12. Stepped round hole; 13. Hexagonal prism blind hole; 14. Connection part between conveyor belt extrusion die and extruder; 15. Existing threaded hole. Detailed Implementation

[0030] The embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of the present utility model, and are therefore merely examples and should not be construed as limiting the scope of protection of the present utility model. The specific structure of the present utility model is as follows: Figures 1-6 As shown in the image.

[0031] Example 1: An electric locking device for a conveyor belt extrusion die includes a U-shaped mounting box 1. A bidirectional drive unit is installed in the mounting cavity of the U-shaped mounting box 1. The outer ends of each bidirectional drive unit extend movably to the outside of the U-shaped mounting box 1 and are fixedly connected to the end of a drive nut 2. A sealing cover plate 3 is bolted and fixed to the front and rear ends of the U-shaped mounting box 1. The bottom of the bidirectional drive unit extends movably to the bottom of the U-shaped mounting box 1 and is coaxially fixedly connected to an operating handwheel 4. A U-shaped cavity 5 is provided in the middle of the U-shaped mounting box 1 for clamping on both sides of the connection between the conveyor belt extrusion die and the extruder. Clamping members are symmetrically arranged on the left and right sides of the U-shaped cavity 5. The two clamping members cooperate to clamp and position the connection between the conveyor belt extrusion die and the extruder 14.

[0032] This utility model's electric locking device for conveyor belt extrusion molds differs from the traditional method of screwing nuts onto both ends of a bolt. It changes the traditional method of manually tightening large nuts on both sides to clamp and position the connection between the conveyor belt extrusion mold and the extruder. In operation, the U-shaped cavity 5 is first aligned with the connection between the conveyor belt extrusion mold and the extruder to be clamped and positioned. Then, the insert plugs 6 on the clamping components are aligned with the existing threaded holes at the connection between the conveyor belt extrusion mold and the extruder, with a clearance fit between the insert plugs 6 and the existing threaded holes. When clamping is required, the handwheel 4 is operated manually to simultaneously move the clamping components on both sides closer together, clamping and positioning the connection 14 between the conveyor belt extrusion mold and the extruder. After positioning, the insert plugs 6 on both sides, inserted into the existing threaded holes 15, effectively support the entire device, preventing it from falling. It should be noted that the length of the insert plug 6 is less than or equal to the thickness of the plate material at the connection of the extrusion mold or the extruder, to ensure stable clamping and positioning of the two clamping components.

[0033] The U-shaped mounting box 1 serves as the main structure of the device, providing installation space for internal components such as the bidirectional drive unit. The outer end of the bidirectional drive unit is connected to the drive nut 2, and its bottom is coaxially fixed to the operating handwheel 4. When the operating handwheel 4 is rotated, it drives the bidirectional drive unit to rotate. This rotation causes the drive nut 2 to move, which in turn, through its interaction with the screw 9 (fixed to the clamping component), moves the clamping component within the U-shaped cavity 5, thereby clamping or releasing the connection between the conveyor belt extrusion die and the extruder. The sealing cover 3 is bolted to both ends of the U-shaped mounting box 1, primarily serving to protect the internal components.

[0034] In any of the above embodiments, preferably, the bidirectional drive unit includes a horizontal bevel gear 7 horizontally installed inside the U-shaped mounting box 1, with a vertical bevel gear 8 meshing at each end of the horizontal bevel gear 7. The lower end of the vertical shaft 701 of the horizontal bevel gear 7 extends movably to the bottom of the U-shaped mounting box 1 and is coaxially fixed to the operating handwheel 4. The outer ends of the horizontal shafts of each vertical bevel gear 8 extend movably to the outside of the U-shaped mounting box 1 and are used to be fixed to the corresponding drive nut 2. The through holes in the center of the horizontal shaft and the horizontal bevel gear 7 are all connected to the central threaded hole of the drive nut 2. A screw 9 is screwed into the central threaded hole of the drive nut 2. The inner end of the screw 9 passes through the through holes on the horizontal shaft, the vertical bevel gear 8 and the U-shaped mounting box 1 and extends into the U-shaped cavity 5 to be fixed to the clamping member.

[0035] When the handwheel 4 is rotated, it drives the horizontal bevel gear 7 to rotate around its vertical axle. Since the horizontal bevel gear 7 meshes with the two vertical bevel gears 8, the rotation of the horizontal bevel gear 7 drives the two vertical bevel gears 8 to rotate simultaneously. The outer end of the horizontal axle of the vertical bevel gear 8 is fixedly connected to the drive nut 2, so when the vertical bevel gear 8 rotates, it drives the horizontal axle 801 to rotate, which in turn causes the drive nut 2 to rotate. The screw 9 inside the drive nut 2 is threadedly engaged with the drive nut 2, and the rotation of the drive nut 2 causes the screw 9 to move axially. After passing through the horizontal axle 801, the vertical bevel gear 8, and the through hole on the U-shaped mounting box 1, the screw 9 is fixedly connected to the clamping component, thereby driving the clamping component to move within the U-shaped cavity 5, achieving synchronous approach or departure of the clamping components on both sides.

[0036] The inner end of the screw 9 is movably fitted into the stepped circular hole 12 of the sliding clamping seat 10 of the clamping member through a stepped shaft 11, and the stepped shaft 11 rotates with the screw 9.

[0037] Because the stepped shaft 11 and the stepped round hole 12 are fitted together, they can rotate relative to each other and can rotate and translate with the screw 9 by relying on the large diameter section of the stepped shaft 11. During the rotation and translation of the stepped shaft 11, it can push or pull the stepped round hole 12 to translate, thereby achieving the function of clamping or releasing.

[0038] Specifically, the stepped shaft 11 at the inner end of the screw 9 is movably inserted into the stepped circular hole 12 of the sliding clamping seat 10. When the screw 9 rotates under the action of the drive nut 2, the stepped shaft 11 rotates with the screw 9. Because the fit between the stepped shaft 11 and the stepped circular hole 12 allows relative rotation, and the large diameter section of the stepped shaft 11 can drive the sliding clamping seat 10 to translate.

[0039] As the screw 9 rotates, the stepped shaft 11 pushes or pulls the sliding clamping seat 10 to move axially within the U-shaped cavity 5. The bottom of the sliding clamping seat 10 always abuts against the bottom of the U-shaped cavity 5 to ensure smooth movement. When the sliding clamping seat 10 moves to the appropriate position, the insert plug 6 installed on its inner wall will be inserted into the original screw hole at the connection between the conveyor belt extrusion die and the extruder, thus clamping the connection. Conversely, when the screw 9 rotates in the opposite direction, the stepped shaft 11 pulls the sliding clamping seat 10 away, and the insert plug 6 exits from the screw hole, thus releasing the connection.

[0040] The existing design of the stepped shaft 11 and stepped hole 12 cleverly realizes the conversion between the rotation of the screw 9 and the translation of the sliding clamping seat 10, resulting in a compact and efficient structure. This design makes the movement of the clamping components smoother and more precise, improving the clamping accuracy and reliability.

[0041] The bottom of the sliding clamping seat 10 abuts against the bottom of the U-shaped cavity 5, further enhancing the stability of the clamping component during movement and reducing the possibility of wobbling and displacement. Meanwhile, the insertion plug 6's engagement with the existing screw hole eliminates the need for additional machining of the connection points, improving the device's versatility and reducing operating costs.

[0042] In addition, to facilitate the installation of the stepped shaft 11, the entire sliding clamping seat 10 is fixed by welding two half seats together to form a unified structure.

[0043] In any of the above embodiments, it is preferred that the clamping member includes a sliding clamping seat 10 that is fitted to the end of the screw 9, the bottom of the sliding clamping seat 10 abutting the bottom of the U-shaped cavity 5, and an insert plug 6 is installed on the inner side wall of the sliding clamping seat 10. The insert plug 6 is used to fit into the original screw hole at the connection between the conveyor belt extrusion die and the extruder.

[0044] The screw 9 moves axially under the action of the drive nut 2. Since the sliding clamping seat 10 is fixedly installed at the end of the screw 9, the movement of the screw 9 will drive the sliding clamping seat 10 to move synchronously within the U-shaped cavity 5. The bottom of the sliding clamping seat 10 abuts against the bottom of the U-shaped cavity 5, ensuring the stability of its movement. When the sliding clamping seat 10 moves to the appropriate position with the screw 9, the insert plug 6 installed on its inner wall will align with and insert into the original screw hole at the connection between the conveyor belt extrusion die and the extruder, thereby clamping the connection and positioning the device.

[0045] The insertion plug 6 fits into the existing screw hole, eliminating the need for additional machining of the connection parts, reducing costs, and improving the versatility of the device. It can be applied to various connection parts of different specifications but with the same threaded hole layout.

[0046] Example 2: Compared with Example 1, this example also includes the following technical features:

[0047] In any of the above embodiments, it is preferred that the external threads of the two screws 9 have opposite directions and that the two screws 9 are close to or far from each other in the working state.

[0048] When the drive nut 2 rotates, because the external threads of the two screws 9 rotate in opposite directions, according to the principle of thread transmission, under the action of the drive nut 2, the two screws 9 will move axially in opposite directions. That is, when the drive nut 2 rotates clockwise, one screw 9 moves closer to the connection part, while the other screw 9 moves away from the connection part, and vice versa. This achieves the mutual approach or distance of the clamping parts on both sides, completing the clamping or loosening operation of the connection part between the conveyor belt extrusion die and the extruder.

[0049] In any of the above embodiments, it is preferred that a hexagonal prism blind hole 13 is provided at the bottom center of the vertical wheel axle, the hexagonal prism blind hole 13 being used in conjunction with an external electric drill drive head or a hexagonal screwdriver.

[0050] When faster operation of the device is required, the drill drive head or hexagonal screwdriver can be inserted into the hexagonal blind hole 13 at the bottom of the vertical wheel axle. When the drill or hexagonal screwdriver rotates, it drives the vertical wheel axle to rotate. The rotation of the vertical wheel axle, through the transmission of the horizontal bevel gear 7 and the vertical bevel gear 8, causes the drive nut 2 to rotate, which in turn drives the screw 9 to move the clamping parts, thereby realizing the rapid clamping or loosening of the connection between the conveyor belt extrusion die and the extruder.

[0051] In any of the above embodiments, it is preferred that each of the insert plugs 6 is detachably screwed into the threaded hole of the sliding clamp 10.

[0052] The insert plug 6 is connected to the threaded hole on the sliding clamp 10 via threads. During installation, the insert plug 6 is screwed into the threaded hole to fix it on the sliding clamp 10. When it is necessary to replace the insert plug 6, simply rotate the insert plug 6 in the reverse direction to remove it from the threaded hole. This connection method is convenient and quick, and facilitates the replacement of insert plugs 6 of different specifications or materials according to actual needs.

[0053] In any of the above embodiments, it is preferred that the inner end face of each of the drive nuts 2 movably abuts against the corresponding outer side wall of the U-shaped mounting box 1.

[0054] During rotation, the inner end face of the drive nut 2 remains in active contact with the corresponding outer wall of the U-shaped mounting box 1. This contact provides support and limits the axial displacement and wobbling that may occur during rotation, ensuring the stability of the drive nut 2's rotation and thus ensuring the accuracy of the movement of the screw 9 and the clamping parts.

[0055] In any of the above schemes, it is preferred that the external thread of the screw 9 is a trapezoidal external thread.

[0056] The trapezoidal external thread has excellent transmission and self-locking properties. When the drive nut 2 moves the screw 9, the trapezoidal external thread can transmit power more effectively, allowing the screw 9 to move smoothly axially. At the same time, after clamping, due to the self-locking characteristic of the trapezoidal external thread, even if the device is subjected to certain external force vibration or impact, the screw 9 will not easily loosen on its own, thus ensuring the reliability of clamping.

[0057] In any of the above embodiments, it is preferred that the U-shaped mounting box 1 is filled with lubricating oil.

[0058] Lubricating oil provides lubrication to the moving parts inside the device, ensuring its normal operation. Simultaneously, by reducing wear and preventing corrosion, it maintains the overall stability of the device's performance, ensuring reliable clamping and positioning functions during prolonged use. Furthermore, the lubricating oil helps reduce noise generated by component friction, creating a quieter working environment for the equipment.

[0059] Working principle: Manually rotating the operating handwheel 4 drives the horizontal bevel gear 7 of the bidirectional drive unit to rotate. The horizontal bevel gear 7 drives the vertical bevel gear 8, which meshes at both ends, to rotate synchronously. The outer end of the horizontal axle of the vertical bevel gear 8 is connected to the drive nut 2, thereby causing the drive nut 2 to rotate. Since the external threads of the two screws 9 rotate in opposite directions, when the drive nut 2 rotates, the two screws 9 move closer to each other under the action of the threads. The inner end of the screw 9 is connected to the sliding clamping seat 10 of the clamping component, which drives the sliding clamping seat 10 to move synchronously within the U-shaped cavity 5, so that the insert plug 6 is gradually inserted into the threaded hole of the connection part until the connection part between the conveyor belt extrusion die and the extruder is clamped and positioned.

[0060] After clamping, check whether the insert plug 6 is fully inserted into the threaded hole and whether the clamping parts on both sides are tightly fitted to the connection part to ensure that the device is stably supported without any loosening or shaking. If the application scenario has high requirements for clamping force, tools (such as torque wrenches) can be used to further confirm whether the rotation torque of the operating handwheel 4 meets the standard to ensure that the clamping force meets production requirements.

[0061] For faster clamping or loosening, a drill bit or hexagonal screwdriver can be inserted into the hexagonal blind hole 13 at the bottom of the vertical axle to drive the vertical axle to rotate, enabling rapid operation. During clamping, if a slight deviation is found in the connection, the handwheel 4 can be finely adjusted. Utilizing the precision of the bevel gear transmission, the position of the clamping parts can be slightly adjusted to ensure accurate installation of the connection.

[0062] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model. For those skilled in the art, any alternative improvements or transformations made to the implementation of this utility model fall within the protection scope of this utility model.

[0063] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A power operated locking device for a conveyor belt extrusion die, characterized by: The utility model provides a kind of two-way drive unit, including U-shaped installation box, the installation cavity in the U-shaped installation box is installed with two-way drive unit, the outer end of each two-way drive unit is active and passes out to the outside of the U-shaped installation box and is fixedly connected with the end of drive nut, the front and rear ends of the U-shaped installation box are respectively bolted and fixed with blocking cover plate, the bottom of two-way drive unit is active and stretches to the below of the U-shaped installation box and is coaxially fixedly connected with an operating hand wheel, U-shaped cavity for being clamped in the both sides of the extrusion die of conveying belt and extruder connecting part is provided in the middle of the U-shaped installation box, clamping piece is respectively arranged symmetrically in the left and right sides of the U-shaped cavity, and two clamping pieces cooperate to realize the clamping positioning of the extrusion die of conveying belt and extruder connecting part.

2. The conveyor belt extrusion die power lockout device of claim 1, wherein: The two-way drive unit includes a horizontal bevel gear horizontally mounted inside the U-shaped installation box, a vertical bevel gear meshing with each end of the horizontal bevel gear, the lower end of the vertical shaft of the horizontal bevel gear is active and passes out to the below of the U-shaped installation box and is coaxially fixedly connected with the operating hand wheel, the outer end of the horizontal shaft of each vertical bevel gear is active and passes out to the outside of the U-shaped installation box and is used for being fixedly connected with the corresponding drive nut, the through holes in the center of the horizontal shaft and the horizontal bevel gear are throughly provided, the outer end of which is in communication with the central threaded hole of the drive nut, a screw rod is screwed in the central threaded hole of the drive nut, the inner end of the screw rod passes through the through holes in the horizontal shaft, the vertical bevel gear and the U-shaped installation box and extends into the U-shaped cavity and is fixedly connected with the clamping piece.

3. The conveyor belt extrusion die power lockout device of claim 2, wherein: The clamping piece includes a sliding clamping seat fitted on the end of the screw rod, the inner end of the screw rod is active and fittedly inserted in the stepped circular hole of the sliding clamping seat of the clamping piece through a stepped shaft, the stepped shaft rotates with the screw rod, the bottom of the sliding clamping seat abuts against the bottom of the U-shaped cavity, an insertion plug is mounted on the inner side wall of the sliding clamping seat, and the insertion plug is used for being fittedly inserted in the original threaded hole of the extrusion die of conveying belt and extruder connecting part.

4. The conveyor belt extrusion die power lockout device of claim 3, wherein: The outer threads of the two screw rods are opposite in rotation direction, and the two screw rods are close to or away from each other in working state.

5. The conveyor belt extrusion die power lockout device of claim 4, wherein: A hexagonal blind hole is provided in the bottom center of the vertical shaft, which is used in cooperation with an external electric drill driving head or hexagonal screwdriver.

6. The conveyor belt extrusion die power lockout device of claim 5, wherein: Each insertion plug is detachably screwed in the threaded hole of the sliding clamping seat through threads.

7. The conveyor belt extrusion die power lockout device of claim 6, wherein: The inner end surface of each drive nut is active and abuts against the corresponding outer side wall of the U-shaped installation box.

8. The conveyor belt extrusion die power lockout device of claim 7, wherein: The outer thread of the screw rod is trapezoidal.

9. The conveyor belt extrusion die power lockout device of claim 8, wherein: The inside of the U-shaped installation box is filled with lubricating oil.

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