Belt cutting device

Abstract

The application provides a belt cutting device, which comprises a rack, a fixed block, a cutter and a positioning pin. The fixed block is arranged on the rack, and the fixed block comprises a first through hole. The cutter is arranged in the fixed block, and the cutter can move in a direction parallel to the thickness of the belt. The cutter comprises a positioning hole, and the cutter is used for cutting the belt. The positioning pin is arranged in the first through hole and the positioning hole to fix the cutter to the fixed block. The application solves the problem that the cutting depth of the existing device is difficult to accurately position.

Description

Technical Field

[0001] This application relates to the technical field of operation and maintenance of belt conveyor equipment, and in particular to a belt cutting device. Background Technology

[0002] In the vulcanization process of belt conveyors, the bonding parts of the two belts need to be made into upper stair-shaped frosted surfaces and lower stair-shaped frosted surfaces respectively. After the upper stair-shaped frosted surfaces and lower stair-shaped frosted surfaces interlock with each other, they are pressed together to form a whole.

[0003] When creating a stair-step or stair-step frosted surface, the belt can be manually cut with a hand-held cutter. The cutting depth corresponds to the step height of the stair-step frosted surface (either upper or lower). The cutting depth direction is parallel to the belt thickness. However, controlling the cutting depth relies on simple tools available on-site, as well as the worker's experience and skill level, making precise depth measurement difficult. Therefore, existing equipment suffers from the problem of accurately determining the belt cutting depth. Utility Model Content

[0004] To address the problem of accurately positioning the cutting depth of belts, this application aims to provide a belt cutting device with high accuracy in cutting depth positioning, comprising a frame, a fixing block, a cutting tool, and a positioning pin. The fixing block is disposed on the frame and includes a first through hole. The cutting tool passes through the fixing block and is movable in a direction parallel to the belt thickness. The cutting tool includes a positioning hole and is used to cut the belt. The positioning pin passes through the first through hole and the positioning hole to fix the cutting tool to the fixing block.

[0005] Optionally, the cutting tool includes a scale.

[0006] Optionally, the fixing block further includes a second through hole, through which the cutting tool is movably inserted, and the second through hole communicates with the first through hole.

[0007] Optionally, the frame includes a first side frame, a second side frame, and a guide rail. The second side frame and the first side frame are spaced apart, and the belt can be disposed between the first side frame and the second side frame. Both ends of the guide rail are respectively connected to the first side frame and the second side frame, and the fixing block is movably connected to the guide rail, and the fixing block can move on the guide rail along a direction parallel to the width of the belt.

[0008] Optionally, the guide rail includes a first telescopic rod and a second telescopic rod. The two ends of the first telescopic rod are connected to the first side frame and the second side frame, respectively. The two ends of the second telescopic rod are also connected to the first side frame and the second side frame, and the second telescopic rod and the first telescopic rod are spaced apart.

[0009] Optionally, the first telescopic rod includes a first fixed sleeve and a first movable rod. The first fixed sleeve is connected to the first side frame, and the fixing block is clamped in the first fixed sleeve. One end of the first movable rod is movably inserted into the first fixed sleeve, and the other end of the first movable rod is connected to the second side frame.

[0010] Optionally, the second telescopic rod includes a second fixed sleeve and a second movable rod. The second fixed sleeve is connected to the first side frame, and the fixing block is clamped in the second fixed sleeve. One end of the second movable rod is movably inserted into the second fixed sleeve, and the other end of the second movable rod is connected to the second side frame.

[0011] Optionally, the belt cutting device further includes a first level, a second level, and a third level. The first level is mounted on the first side frame. The second level is mounted on the second side frame. The third level is mounted on the guide rail, and the cutter is vertically positioned.

[0012] Optionally, the belt cutting device further includes a telescopic beam, the two ends of which are connected to the first side frame and the second side frame respectively, and the telescopic beam and the guide rail are spaced apart.

[0013] Optionally, the belt cutting device may further include a fourth level, which is disposed on the telescopic beam.

[0014] The beneficial effects of this application are as follows: A frame, a fixing block, a cutting tool, and a positioning pin are provided. The fixing block is disposed on the frame and includes a first through hole. The cutting tool passes through the fixing block and is movable in a direction parallel to the belt thickness. The cutting tool includes a positioning hole and is used to cut the belt. The positioning pin passes through the first through hole and the positioning hole to fix the cutting tool to the fixing block.

[0015] Since the cutting tool is movably mounted on the fixed block, which is set on the frame, and the positioning pin is mounted on the first through hole and the positioning hole, the frame, the fixed block, the cutting tool and the positioning pin work together to achieve the positioning of the cutting tool in the thickness direction of the belt, thereby improving the positioning accuracy of the cutting depth.

[0016] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, the following describes the application in detail with reference to the preferred embodiments and accompanying drawings. Attached Figure Description

[0017] Figure 1 This is a perspective view of the belt cutting device in operation according to one embodiment of this application;

[0018] Figure 2 This is an exploded view of the fixing block, the cutting tool, and the positioning pin in one embodiment of this application;

[0019] Figure 3 A perspective view of a belt cutting device in one embodiment of this application;

[0020] Figure 4 This is an exploded view of the guide rail in one embodiment of this application;

[0021] Figure 5 This is a schematic diagram of the stair-shaped frosted surface cutting of the belt in one embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the interlocking of the stair-shaped frosted surfaces of two belts in one embodiment of this application.

[0023] In the attached figures, the following labels are used:

[0024] 100 racks

[0025] 1000 First side frame

[0026] 1001 Second Side Frame

[0027] 1002 guide rail

[0028] 10020 First Telescopic Pole

[0029] 100200 First Fixed Sleeve

[0030] 100201 First Moving Rod

[0031] 10021 Second Telescopic Pole

[0032] 100210 Second Fixing Sleeve

[0033] 100211 Second movable lever

[0034] 101 Fixing Block

[0035] 1010 First Through Hole

[0036] 1011 Second Through Hole

[0037] 102 Cutting Tools

[0038] 1020 positioning hole

[0039] 103 Positioning Pin

[0040] 104 belt

[0041] 1040 Staircase-shaped frosted surface

[0042] 105 First Level

[0043] 106 Second Level

[0044] 107 Third Level

[0045] 108 Telescopic crossbeams

[0046] 1080 Third Fixing Sleeve

[0047] 1081 Third movable lever

[0048] 109 Fourth Level Detailed Implementation

[0049] The following specific embodiments illustrate the implementation of this application. Those skilled in the art can easily understand other advantages and effects of this application from the content disclosed in this specification.

[0050] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present application will now be described in detail with reference to the accompanying drawings and embodiments. To enable those skilled in the art to better understand the solutions of this application, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this application.

[0051] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to these processes, methods, products, or devices.

[0052] It should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0053] In some of the attached figures, a rectangular coordinate system O-XYZ is established. The X-axis is parallel to the length direction of the frame 100, the Y-axis is parallel to the width direction of the frame 100, and the Z-axis is parallel to the height direction of the frame 100. The positive directions of the X-axis, Y-axis, and Z-axis remain the same in all the attached figures with coordinate systems.

[0054] Please also refer to Figure 1 and Figure 2 This embodiment provides a belt cutting device, including a frame 100, a fixing block 101, a cutter 102, and a positioning pin 103. The fixing block 101 is disposed on the frame 100 and includes a first through hole 1010. The cutter 102 passes through the fixing block 101 and is movable in a direction parallel to the thickness of the belt 104. The cutter 102 includes a positioning hole 1020 and is used to cut the belt 104. The positioning pin 103 passes through the first through hole 1010 and the positioning hole 1020 to fix the cutter 102 to the fixing block 101.

[0055] like Figure 1 As shown, since the cutting tool 102 is movably mounted on the fixing block 101, the fixing block 101 is set on the frame 100, and the positioning pin 103 is mounted on the first through hole 1010 and the positioning hole 1020, the frame 100, the fixing block 101, the cutting tool 102 and the positioning pin 103 work together to achieve the positioning of the cutting tool 102 in the thickness direction of the belt 104, thereby improving the positioning accuracy of the cutting depth of the cutting tool 102.

[0056] like Figure 1 As shown, the frame 100 can be a steel frame structure. For example, the frame 100 can be cuboid in shape and can be composed of four vertical rectangular steel pipes and four horizontal rectangular steel pipes. The belt 104 passes through the bottom of the frame 100. The fixing block 101 can be fixed to the frame 100 by welding or screw connection. The fixing block 101 can be cuboid in shape.

[0057] like Figure 2 As shown, the number of first through holes 1010 can be multiple, preferably two. The first through holes 1010 can penetrate the front and rear sides of the fixing block 101. The first through holes 1010 can be circular holes. The axial direction of the first through holes 1010 can be parallel to the Y-axis. The lower part of the cutter 102 can be a triangular prism, and the edges of the triangular prism can be parallel to the Y-axis. The cutter 102 can cut the belt 104 in a direction parallel to the Y-axis. The material of the cutter 102 can be tool steel.

[0058] like Figure 2 As shown, the positioning hole 1020 can be a circular hole. The axial direction of the positioning hole 1020 can be parallel to the Y-axis. There can be multiple positioning holes 1020. Multiple positioning holes 1020 can be evenly arranged along the length direction of the tool 102.

[0059] like Figure 1 As shown, optionally, the cutting tool 102 includes a scale. Setting a scale on the cutting tool 102 allows workers to quickly and easily confirm the cutting depth without the need for other measuring tools. The scale lines can be set on the front side of the cutting tool 102 by silkscreen printing or embossing. The smallest unit of the scale can be millimeters. The scale is set along the length of the cutting tool 102.

[0060] like Figure 2 As shown, optionally, the fixing block 101 also includes a second through hole 1011, through which the cutter 102 is movably inserted. The second through hole 1011 communicates with the first through hole 1010. This arrangement leaves more solid portion on the fixing block 101 to block the positioning pin 103, thereby facilitating the positioning pin 103 to securely fix the cutter 102 and making the fixation of the cutter 102 in the thickness direction of the belt 104 more secure.

[0061] like Figure 2 As shown, the second through hole 1011 can penetrate the upper and lower surfaces of the fixing block 101, that is, the axial direction of the second through hole 1011 can be parallel to the Z-axis. The shape and size of the cross-section of the second through hole 1011 can be the same as the shape and size of the cross-section of the tool 102.

[0062] Please also refer to Figure 1 and Figure 3 Optionally, the frame 100 includes a first side frame 1000, a second side frame 1001, and a guide rail 1002. The second side frame 1001 and the first side frame 1000 are spaced apart, and the belt 104 can be disposed between the first side frame 1000 and the second side frame 1001. The two ends of the guide rail 1002 are respectively connected to the first side frame 1000 and the second side frame 1001, and the fixing block 101 is movably connected to the guide rail 1002, and the fixing block 101 can move on the guide rail 1002 along a direction parallel to the width of the belt 104.

[0063] like Figure 1 As shown, this configuration allows the fixed block 101 to move along the width direction parallel to the belt 104 on the guide rail 1002, making it convenient to adjust the lateral position of the cutter 102 according to the required cutting width of the belt 104.

[0064] like Figure 3As shown, the first side frame 1000 can be H-shaped. The first side frame 1000 can be made of rectangular steel tubing. The first side frame 1000 can be the left side frame. The second side frame 1001 can be H-shaped. The second side frame 1001 can be made of rectangular steel tubing. The second side frame 1001 can be the right side frame. Rubber pads can be provided at the bottom of the first side frame 1000 and the bottom of the second side frame 1001 respectively, to prevent the first side frame 1000 and the second side frame 1001 from moving in a direction parallel to the X-axis after the distance between the first side frame 1000 and the second side frame 1001 is adjusted.

[0065] Please also refer to Figure 1 and Figure 3 The two ends of the guide rail 1002 can be welded to the first side frame 1000 and the second side frame 1001 respectively. The guide rail 1002 can be a T-shaped guide rail (T-shaped cross-section) or an O-shaped guide rail (O-shaped cross-section). The fixing block 101 and the guide rail 1002 can be slidably connected. The fixing block 101 can include a groove, and the cross-sectional shape and size of the groove can be the same as the cross-sectional shape and size of the guide rail 1002. The fixing block 101 can reciprocate in a direction parallel to the X-axis.

[0066] Please also refer to Figure 1 and Figure 3 Optionally, the guide rail 1002 includes a first telescopic rod 10020 and a second telescopic rod 10021. The two ends of the first telescopic rod 10020 are connected to the first side frame 1000 and the second side frame 1001, respectively. The two ends of the second telescopic rod 10021 are connected to the first side frame 1000 and the second side frame 1001, respectively, and the second telescopic rod 10021 and the first telescopic rod 10020 are spaced apart.

[0067] like Figure 3 As shown, this configuration allows the distance between the first side frame 1000 and the second side frame 1001 to be adjustable to accommodate different belt widths 104. The two ends of the first telescopic rod 10020 can be welded to the first side frame 1000 and the second side frame 1001 respectively. The composition of the first telescopic rod 10020 can be found in the subsequent description of the embodiment.

[0068] like Figure 3 As shown, the two ends of the second telescopic rod 10021 can be connected to the first side frame 1000 and the second side frame 1001 respectively by welding. The composition of the second telescopic rod 10021 can be described in the following description of the embodiment. The first telescopic rod 10020 and the second telescopic rod 10021 can be arranged one in front of the other. The thickness of the cutter 102 can be equal to the distance between the first telescopic rod 10020 and the second telescopic rod 10021. The cutter 102 is clamped between the first telescopic rod 10020 and the second telescopic rod 10021.

[0069] Please also refer to Figure 3 and Figure 4 Optionally, the first telescopic rod 10020 includes a first fixed sleeve 100200 and a first movable rod 100201. The first fixed sleeve 100200 is connected to the first side frame 1000, and the fixing block 101 is clamped in the first fixed sleeve 100200. One end of the first movable rod 100201 is movably inserted into the first fixed sleeve 100200, and the other end of the first movable rod 100201 is connected to the second side frame 1001.

[0070] Please also refer to Figure 3 and Figure 4 This design avoids friction between the first movable rod 100201 and the fixed block 101 during extension and retraction, reducing frictional damage to the fixed block 101. The first fixed sleeve 100200 is generally U-shaped with its side facing outwards. The left end of the first fixed sleeve 100200 can be welded to the first side frame 1000. The top surface of the first fixed sleeve 100200 can be flat. The material of the first fixed sleeve 100200 can be steel. The first fixed sleeve 100200 can include two first cylinder bores. The cross-section of the first cylinder bore can be rectangular.

[0071] Please also refer to Figure 3 and Figure 4 The top surface of the fixing block 101 can abut against the inner top surface of the first fixing sleeve 100200. The bottom surface of the fixing block 101 can abut against the inner bottom surface of the first fixing sleeve 100200. The left end of the first movable rod 100201 can be inserted into the first cylinder hole of the first fixing sleeve 100200. The right end of the first movable rod 100201 can be connected to the second side frame 1001 by welding.

[0072] like Figure 4 As shown, there can be two first movable rods 100201. The length directions of the two first movable rods 100201 can be arranged parallel to each other. Each first movable rod 100201 corresponds to one first cylinder bore. Each first movable rod 100201 is inserted into its corresponding first cylinder bore. The shape and size of the cross-section of the first movable rod 100201 can be the same as the shape and size of the cross-section of the corresponding first cylinder bore. The material of the first movable rod 100201 can be steel.

[0073] Please also refer to Figure 3 and Figure 4 Optionally, the second telescopic rod 10021 includes a second fixed sleeve 100210 and a second movable rod 100211. The second fixed sleeve 100210 is connected to the first side frame 1000, and the fixing block 101 is clamped in the second fixed sleeve 100210. One end of the second movable rod 100211 is movably inserted into the second fixed sleeve 100210, and the other end of the second movable rod 100211 is connected to the second side frame 1001.

[0074] Please also refer to Figure 3 and Figure 4 This design avoids friction between the second movable rod 100211 and the fixed block 101 during extension and retraction, thus reducing frictional damage to the fixed block 101.

[0075] like Figure 4 As shown, the second fixing sleeve 100210 is generally U-shaped and positioned laterally. The left end of the second fixing sleeve 100210 can be welded to the first side frame 1000. The second fixing sleeve 100210 may include two second cylinder holes. The top surface of the second fixing sleeve 100210 can be a plane. The material of the second fixing sleeve 100210 can be steel. The cross-section of the second cylinder hole can be rectangular.

[0076] Please also refer to Figure 3 and Figure 4 The top surface of the fixing block 101 can abut against the inner top surface of the second fixing sleeve 100210. The bottom surface of the fixing block 101 can abut against the inner bottom surface of the second fixing sleeve 100210. The upper and lower parts of the cutting tool 102 are clamped between the first fixing sleeve 100200 and the second fixing sleeve 100210.

[0077] Please also refer to Figure 3 and Figure 4 The left end of the second movable rod 100211 can be inserted into the second cylinder hole of the second fixed sleeve 100210. The right end of the second movable rod 100211 can be connected to the second side frame 1001 by welding. There can be two second movable rods 100211. The length directions of the two second movable rods 100211 can be parallel to each other.

[0078] like Figure 4 As shown, each second movable rod 100211 corresponds to one second cylinder bore. Each second movable rod 100211 is inserted into its corresponding second cylinder bore. The specifications (shape, size, and material, etc.) of the second movable rod 100211 can be the same as those of the first movable rod 100201. The shape and size of the cross-section of the second movable rod 100211 can be the same as the shape and size of the cross-section of the corresponding second cylinder bore.

[0079] Please also refer to Figure 1 and Figure 3Optionally, the belt cutting device further includes a first level 105, a second level 106, and a third level 107. The first level 105 is mounted on the first side frame 1000. The second level 106 is mounted on the second side frame 1001. The third level 107 is mounted on the guide rail 1002, and the cutter 102 is vertically mounted. This configuration ensures that the fixing block 101 is horizontal, thereby maintaining the verticality of the cutter 102 and preventing the cutter 102 from tilting, which would reduce the accuracy of cutting depth control.

[0080] Please also refer to Figure 1 and Figure 3 The first level 105 can be placed and adhered to the top surface of the first side frame 1000. The first level 105 can be a bubble level or an electronic level. The second level 106 can be placed and adhered to the top surface of the second side frame 1001. The second level 106 can be a bubble level or an electronic level. The third level 107 can be placed and adhered to the top surface of the guide rail 1002. The third level 107 can be a bubble level or an electronic level.

[0081] Please also refer to Figure 1 and Figure 3 Optionally, the belt cutting device also includes a telescopic crossbeam 108, with both ends of the telescopic crossbeam 108 connected to the first side frame 1000 and the second side frame 1001, respectively. The telescopic crossbeam 108 and the guide rail 1002 are spaced apart. Connecting the first side frame 1000 and the second side frame 1001 with the telescopic crossbeam 108 allows for more secure fixing of the first side frame 1000 and the second side frame 1001. The telescopic crossbeam 108 can be cuboid in shape and can be made of steel or aluminum alloy.

[0082] Please also refer to Figure 1 and Figure 3 The telescopic beam 108 can be composed of a third fixed sleeve 1080 and a third movable rod 1081. The third fixed sleeve 1080 is fitted with the third movable rod 1081. The third movable rod 1081 can extend and retract in a direction parallel to the X-axis. The two ends of the telescopic beam 108 can be connected to the first side frame 1000 and the second side frame 1001 respectively by welding. The length direction of the telescopic beam 108 can be parallel to the X-axis.

[0083] Please also refer to Figure 1 and Figure 3Optionally, the belt cutting device also includes a fourth level 109, which is mounted on the telescopic beam 108. This configuration allows the fourth level 109 to work in conjunction with the two compliant levels to determine the plumbness of the cutter 102 if one of the other three levels fails, thus improving the reliability of the cutter 102's cutting depth control. The fourth level 109 can be a bubble level or an electronic level. The fourth level 109 can be placed and adhered to the top surface of the telescopic beam 108.

[0084] Working principle of belt cutting device:

[0085] Please also refer to Figure 1 and Figure 3 and Figure 5 Place the belt 104 to be cut between the first side frame 1000 and the second side frame 1001. Adjust the cutter 102 to a suitable depth and fix it using the locating pin 103. After the cutter 102 is adjusted to the appropriate depth, place it in front of the belt 104. Move the belt 104 toward the cutter 102 in a direction parallel to the Y-axis. As the belt 104 moves, hold the fixing block 101 to prevent the cutter 102 from moving in a direction parallel to the X-axis. After the belt 104 is cut in a direction parallel to the Y-axis, tear off the belt layer below the current thickness.

[0086] Please also refer to Figure 1 , Figure 3 and Figure 5 Next, move the cutter 102 along a direction parallel to the X-axis, then pull out the locating pin 103, allowing the cutter 102 to descend to a suitable height. After re-fixing the locating pin 103, move the cutter 102 to the front of the belt 104, allowing the belt 104 to move towards the cutter 102 along a direction parallel to the Y-axis. After the belt 104 completes cutting along a direction parallel to the Y-axis, tear off one layer of belt below the current depth to obtain a stair-shaped frosted surface 1040. The distance between adjacent locating holes 1020 can be the height of one step of the stair-shaped frosted surface 1040.

[0087] like Figure 6 As shown, after the current belt 104 is cut, another belt 104 with a stair-shaped frosted surface 1040 is cut out in the same way. The stair-shaped frosted surfaces 1040 of the two belts 104 can be interlocked and pressurized to form a single belt 104.

[0088] The belt cutting device provided in the embodiments of this application has been described in detail above. For those skilled in the art, based on the ideas of the embodiments of this application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be construed as a limitation of this application. All equivalent modifications or changes made in accordance with the spirit and technical concept of this application should still be covered by the claims of this application.

Claims

1. A belt cutting apparatus, characterized by, include: frame; A fixing block is disposed on the frame, the fixing block including a first through hole; A cutting tool, which passes through the fixed block, is movable in a direction parallel to the thickness of the belt, the cutting tool includes a positioning hole, and is used to cut the belt; and A positioning pin is inserted through the first through hole and the positioning hole to fix the tool to the fixing block.

2. The belt cutting apparatus of claim 1, wherein, The cutting tool includes a scale.

3. The belt cutting apparatus of claim 1, wherein, The fixing block also includes a second through hole, through which the cutting tool is movably inserted, and the second through hole is connected to the first through hole.

4. The belt cutting apparatus of claim 1, wherein, The rack includes: First side frame; A second side frame, spaced apart from the first side frame, is provided, and the belt can be disposed between the first side frame and the second side frame; and The guide rail has its two ends connected to the first side frame and the second side frame respectively. The fixing block is movably connected to the guide rail and can move on the guide rail in a direction parallel to the width of the belt.

5. The belt cutting apparatus of claim 4, wherein, The guide rail includes: The first telescopic rod has its two ends connected to the first side frame and the second side frame, respectively; and The second telescopic rod is connected at both ends to the first side frame and the second side frame respectively, and the second telescopic rod and the first telescopic rod are spaced apart.

6. The belt cutting apparatus of claim 5, wherein, The first telescopic rod includes: A first fixing sleeve, which is connected to the first side frame, and the fixing block is clamped in the first fixing sleeve; and The first movable rod has one end movably inserted into the first fixed sleeve, and the other end of the first movable rod is connected to the second side frame.

7. The belt cutting apparatus of claim 5, wherein, The second telescopic rod includes: A second fixing sleeve is connected to the first side frame, and the fixing block is clamped in the second fixing sleeve; and The second movable rod has one end movably inserted into the second fixed sleeve, and the other end of the second movable rod is connected to the second side frame.

8. The belt cutting apparatus of claim 4, wherein, Also includes: A first level is mounted on the first side frame; The second level is mounted on the second side frame; as well as A third level is mounted on the guide rail, and the cutter is vertically positioned.

9. The belt cutting apparatus of claim 4, wherein, It also includes a telescopic beam, the two ends of which are connected to the first side frame and the second side frame respectively, and the telescopic beam and the guide rail are spaced apart.

10. The belt cutting device according to claim 9, characterized in that, It also includes a fourth level, which is disposed on the telescopic beam.

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