A pipe notch processing apparatus and pipe processing equipment including the same.

Abstract

This utility model relates to the field of pipe processing technology, and discloses a pipe notching device and a pipe processing equipment including the same. The pipe notching device includes a frame and a mold, a cutting tool, and a processing drive device mounted on the frame. The cutting tool is driven to the processing drive device, and the mold and cutting tool are positioned correspondingly. The notching device also includes at least two opposing length-fixing devices. The mold is positioned between the two length-fixing devices. Each length-fixing device includes a length-fixing drive device and a length-fixing extruder connected by a drive mechanism. The length-fixing drive device is mounted on the frame, and the length-fixing extruder is located at the output end of the length-fixing drive device and on the side of the length-fixing drive device closer to the mold. The length-fixing drive device can drive the length-fixing extruder to approach and axially extrude the pipe. Beneficial effects: This ensures that the pipe meets the specified length during processing, accurately notches the pipe ends, and the processed pipe meets product requirements, thus improving product quality and production efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pipe processing technology, and in particular to a pipe notch processing device and a pipe processing equipment including the notch. Background Technology

[0002] Pipes are widely used in modern production and daily life, with a wide variety of specific applications. The processing requirements for pipes vary depending on the application. For example, pipes used to make cabinet door frame borders need to be bent to form the three sides of the frame. To ensure a smooth bending process, two notches are machined into the pipe to avoid obstruction during bending. At both ends of the pipe, another type of notch is also required. These notches are usually located at the extreme ends of the pipe, or the distance between the notch and the end face of the pipe is strictly controlled.

[0003] However, due to unavoidable processing errors, even pipes processed according to the same requirements may have inconsistent lengths. In such cases, the notch processing device may not be able to accurately process the corresponding notches at the extreme ends of the pipe, resulting in pipes that do not meet product requirements and require secondary processing, which is detrimental to improving product quality and production efficiency. Utility Model Content

[0004] The main purpose of this invention is to provide a notch processing device for pipes, which aims to solve the technical problem that the position of the notch processed on the pipe is not accurate enough in the prior art.

[0005] To achieve the above objectives, this utility model proposes a notch processing device for pipes, including a frame and a mold, a cutting tool, and a processing drive device mounted on the frame. The cutting tool is driven and connected to the processing drive device. The mold and the cutting tool are positioned correspondingly. The cutting tool can process a notch at the end of the pipe. The notch processing device also includes at least two opposing length-fixing devices. The mold is located between the two length-fixing devices. Each length-fixing device includes a length-fixing drive device and a length-fixing extruder that are driven and connected. The length-fixing drive device is mounted on the frame. The length-fixing extruder is located at the output end of the length-fixing drive device and is located on the side of the length-fixing drive device closer to the mold. The length-fixing drive device can drive the length-fixing extruder to approach and axially extrude the pipe.

[0006] The beneficial effects of this invention are as follows: Before notching the pipe on the mold, the pipe is first lengthened using two length-fixing devices. The length-fixing drive device moves the length-fixing extruder closer to the mold. If the pipe length is slightly longer than the specified length, the two length-fixing extruders axially compress the pipe to the specified length before notching. After the axially compressed pipe meets the specified length, the processing drive device can drive the cutter to accurately notch the end of the pipe, ensuring that the processed pipe meets product requirements, thus improving product quality and production efficiency.

[0007] Preferably, the notch processing device further includes a clamping device located beside the mold. The clamping device includes a clamping drive device and a first clamping member and a second clamping member arranged opposite to each other. The clamping drive device and the first clamping member are both mounted on the frame, and the second clamping member is mounted on the output end of the clamping drive device. The clamping drive device can drive the second clamping member to move closer to or away from the first clamping member. The clamping device is used to clamp and position the pipe placed on the mold, which helps to improve the accuracy and efficiency of notch processing.

[0008] Preferably, the notch processing device further includes a first notch processing structure, which includes a first mold and a first cutting tool. The first mold is provided with a first placement groove and a V-shaped cutting groove that are perpendicular to each other and connected. The first placement groove is used to place the pipe. The first cutting tool is provided with a V-shaped cutting edge that matches the V-shaped cutting groove. The first cutting tool is driven and connected to the processing drive device, which is beneficial to enriching the product variety.

[0009] Preferably, the bottom of the V-shaped groove is provided with two chip removal chute slopes, which are located on both sides of the first placement groove. The chip removal chute slopes are arranged from top to bottom in the direction from near to far from the first placement groove, which helps to avoid chip accumulation and improves the quality and efficiency of notch cutting.

[0010] Preferably, the first mold is also provided with an air blowing channel, which connects the air inlet on the side wall of the first mold and the air outlet at the bottom of the first placement groove, which is conducive to timely discharge of debris and further improves the quality and efficiency of notch cutting.

[0011] This utility model also provides a pipe processing equipment, including the above-mentioned pipe notch processing device.

[0012] Preferably, the notch processing device further includes a second notch processing structure, which includes a second mold and a second cutter respectively. The second mold is provided with a second placement groove and a second cutting groove that are perpendicular to each other and connected. The second placement groove is used to place the pipe. The second cutter is provided with a second cutting edge that matches the second cutting groove. The second cutter is driven and connected to the processing drive device. The second notch processing structure is used to process notches on the end of the pipe. At the same time, at least two types of notches are processed on the pipe, which is beneficial to improve processing efficiency.

[0013] Preferably, it also includes a feeding device, which includes a feeding drive device and a demolding structure connected by a transmission. The demolding structure includes a feeding ramp, and the feeding drive device includes a feeding drive cylinder mounted on the frame. The feeding ramp and the feeding drive cylinder are connected by a transmission. The upper end of the feeding ramp corresponds to the position of the mold. During feeding, the feeding drive cylinder drives the feeding ramp to move upward, pushing the pipe on the mold to detach from the mold, so that the pipe slides or rolls down along the feeding ramp.

[0014] Preferably, the unloading device includes multiple demolding structures, among which a second demolding structure is included. The second demolding structure includes two unloading ramps, which are arranged along the arrangement direction of the two fixed-length devices. The second mold is also provided with a ramp receiving groove, which is located below the second cutting groove and communicates with the second cutting groove. One of the unloading ramps of the second demolding structure can extend into the ramp receiving groove, so that the pipe after notching is not easy to break at the V-shaped notch, which helps to reduce the probability of pipe damage and improve the yield.

[0015] Preferably, the unloading device further includes an unloading conveying assembly, which includes an unloading frame, an unloading conveying drive device and an unloading conveyor belt mounted on the unloading frame. The unloading conveyor belt is located directly below the lower end of the unloading ramp and is inclined on the unloading frame. The unloading conveying drive device can drive the unloading conveyor belt to rotate. The unloading conveyor belt includes a round belt, which helps to reduce the risk of pipe damage and improve the yield. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the pipe processing equipment in an embodiment of the present utility model;

[0018] Figure 2 for Figure 1A magnified view of a section at point A in the middle;

[0019] Figure 3 This is a schematic diagram of the structure of the length-fixing device, the first mold, the first demolding structure, and the clamping device in the embodiments of this utility model.

[0020] Figure 4 This is a schematic diagram of the pipe processing equipment from another angle in an embodiment of this utility model;

[0021] Figure 5 for Figure 4 A magnified view of a section at point B in the middle;

[0022] Figure 6 This is a schematic diagram of the structure of the second mold in an embodiment of this utility model;

[0023] Figure 7 This is a schematic diagram of the second notch processing structure in an embodiment of the present invention;

[0024] Figure 8 This is a schematic diagram of the structure of the first mold in an embodiment of this utility model;

[0025] Figure 9 This is a schematic diagram of the first notch processing structure in an embodiment of the present utility model;

[0026] Figure 10 This is a schematic diagram of the structure of the pipe after it has been processed by the pipe processing equipment in this embodiment of the utility model.

[0027] In the attached diagram: 1-Frame, 2-Mold, 21-First mold, 211-First placement slot, 212-V-shaped cutting groove, 213-Chip removal chute, 214-Air inlet, 215-Air outlet, 22-Second mold, 221-Second placement slot, 222-Second cutting groove, 223-Slanted table receiving slot, 3-Machining drive device, 41-First cutting tool, 411-V-shaped cutting edge, 42-Second cutting tool, 421-Second cutting edge, 5-Fixed... 51-Long device, 52-Fixed length drive device, 6-Fixed length extrusion part, 6-Demolding structure, 62-Second demolding structure, 63-Unloading ramp, 7-Clamping device, 71-First clamping part, 72-Second clamping part, 73-Clamping drive device, 8-Unloading rack, 81-Unloading conveyor belt, 9-Unloading drive device, 91-Unloading drive cylinder, 10-Pipe, 101-Notch, 1011-V-shaped notch, 1012-Second notch.

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators, such as up, down, left, right, front, back, etc., the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0031] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0032] like Figures 1 to 6 As shown, a notch processing device for pipes includes a frame 1 and a mold 2, a cutting tool, and a processing drive device 3 mounted on the frame 1. The cutting tool is driven to the processing drive device 3. The mold 2 is positioned corresponding to the cutting tool, and the cutting tool can process a notch at the end of the pipe 10. The notch processing device also includes at least two opposing length-fixing devices 5. The mold 2 is located between the two length-fixing devices 5. Each length-fixing device 5 includes a length-fixing drive device 51 and a length-fixing extruder 52 driven to it. The length-fixing drive device 51 is mounted on the frame 1. The length-fixing extruder 52 is located at the output end of the length-fixing drive device 51 and is located on the side of the length-fixing drive device 51 closer to the mold 2. The length-fixing drive device 51 can drive the length-fixing extruder 52 to approach and axially extrude the pipe 10.

[0033] Before notching 101 on the tube 10 in mold 2, the tube 10 is first lengthened using two length-fixing devices 5: the length-fixing drive device 51 drives the length-fixing extruder 52 to move closer to mold 2. If the length of the tube 10 is slightly longer than the specified length, the two length-fixing extruders 52 axially extrude the tube 10, pressing it to the specified length before notching 101 is performed. After the tube 10 meets the specified length after axial extrusion, the processing drive device 3 can drive the cutting tool to accurately notch 101 at the end of the tube 10, ensuring that the processed tube 10 meets product requirements, which helps improve product quality and production efficiency.

[0034] Specifically, the fixed-length drive device 51 adopts a cylinder structure.

[0035] In some specific embodiments, the notch processing device further includes a clamping device 7 located beside the mold 2. The clamping device 7 includes a clamping drive device 73 and a first clamping member 71 and a second clamping member 72 disposed opposite to each other. The clamping drive device 73 and the first clamping member 71 are both disposed on the frame 1. The second clamping member 72 is disposed on the output end of the clamping drive device 73. The clamping drive device 73 can drive the second clamping member 72 to move closer to or away from the first clamping member 71. The clamping device 7 is used to clamp and position the pipe 10 placed on the mold 2.

[0036] Specifically, the clamping drive device 73 adopts a cylinder structure.

[0037] During operation, after the pipe 10 is placed onto the mold 2, the clamping device 7 positions the pipe 10 in the horizontal width direction before notching 101 is processed. Since the processing drive device 3 drives the cutting tool to cut the pipe 10 back and forth in the horizontal width direction during notching 101 processing, the clamping device 7 is set up to specifically limit the pipe 10 in a specific direction, which helps to improve the accuracy and efficiency of notching 101 processing.

[0038] In some specific embodiments, the notch processing device further includes a first notch processing structure, which includes a first mold 21 and a first cutter 41 respectively. The first mold 21 is provided with a first placement groove 211 and a V-shaped cutting groove 212 that are perpendicular to each other and connected. The first placement groove 211 is used to place the tube 10. The first cutter 41 is provided with a V-shaped blade 411 that matches the V-shaped cutting groove 212. The first cutter 41 is drivenly connected to the processing drive device 3.

[0039] Specifically, the first notch processing structure includes two first molds 21 and two first cutters 41 that correspond one-to-one. Through the first notch processing structure, a V-shaped notch 1011 is processed on the pipe 10, so that the pipe 10 can be bent at the V-shaped notch 1011. After bending, the two sides of the V-shaped notch 1011 are welded together to form an angled strip pipe fitting, thus enriching the product variety.

[0040] In some specific embodiments, the bottom of the V-shaped groove 212 is provided with two chip removal sloping grooves 213. The two chip removal sloping grooves 213 are respectively located on both sides of the first placement groove 211. The chip removal sloping grooves 213 are inclined from top to bottom in the direction from approaching to moving away from the first placement groove 211.

[0041] When the first cutter 41 cuts the pipe 10 on the first mold 21 back and forth, debris will continuously fall into the V-groove 212. If the debris in the V-groove 212 cannot be discharged in time, excessive debris accumulation will affect the cutting quality and efficiency. The chip removal chute 213 utilizes gravity to allow the debris falling into the V-groove 212 to slide down along the chute and be discharged promptly. This design helps avoid debris accumulation and improves the cutting quality and efficiency of the notch 101.

[0042] In some specific embodiments, the first mold 21 is also provided with an air blowing channel, which connects the air inlet 214 provided on the side wall of the first mold 21 and the air outlet 215 provided at the bottom of the first placement groove 211.

[0043] An air blowing channel is provided on the first mold 21. An external air blowing device is connected through the air inlet 214, and then air is blown into the first placement groove 211, V-shaped cutting groove 212 and chip removal inclined groove 213 on the first mold 21 through the air outlet 215. This helps to remove the chips in time and further improves the quality and efficiency of notch 101 cutting.

[0044] This embodiment also provides a pipe processing equipment, including the above-mentioned pipe notch processing device.

[0045] In some specific embodiments, the notch processing device further includes a second notch processing structure, which includes a correspondingly arranged second mold 22 and a second cutter 42. The second mold 22 is provided with a second placement groove 221 and a second cutting groove 222 that are perpendicular to each other and connected. The second placement groove 221 is used to place the pipe 10. The second cutter 42 is provided with a second cutting edge 421 that matches the second cutting groove 222. The second cutter 42 is drivenly connected to the processing drive device 3. The second notch processing structure is used to process notches on the ends of the pipe 10.

[0046] The second notch processing structure can process a second notch 1012 at the end of the pipe 10. By setting the first notch processing structure and the second notch processing structure on the same notch processing device, at least two different notches 101, including V-shaped notch 1011 and second notch 1012, can be processed on one device. This reduces the transportation of the pipe 10 during processing, which helps to reduce the probability of damage to the pipe 10 and improves the efficiency of notch 101 processing.

[0047] In some specific embodiments, a feeding device is also included. The feeding device includes a feeding drive device 9 and a demolding structure 6 that are connected by a transmission. The demolding structure 6 includes a feeding ramp 63. The feeding drive device 9 includes a feeding drive cylinder 91 mounted on the frame 1. The feeding ramp 63 and the feeding drive cylinder 91 are connected by a transmission. The upper end of the feeding ramp 63 corresponds to the position of the mold 2. When feeding, the feeding drive cylinder 91 drives the feeding ramp 63 to move upward, pushing the tube 10 on the mold 2 to detach from the mold 2, so that the tube 10 slides or rolls down along the feeding ramp 63.

[0048] The tube 10 is cut using the cutting ramp 63, which, compared to other cutting structures, helps to reduce costs, save space, and make the notch processing equipment more compact.

[0049] In some other embodiments, the demolding structure 6 includes a material clamping structure that clamps and removes the tube 10 from the mold 2.

[0050] In some specific embodiments, the unloading device includes multiple demolding structures 6, among which a second demolding structure 62 is included. The second demolding structure 62 includes two unloading ramps 63, which are arranged along the arrangement direction of the two fixed-length devices 5. The second mold 22 is also provided with a ramp receiving groove 223, which is located below the second cutting groove 222 and communicates with the second cutting groove 222. One of the unloading ramps 63 of the second demolding structure 62 can extend into the ramp receiving groove 223.

[0051] During material feeding, the feeding drive device 9 drives the two feeding ramps 63 to move upward. The feeding ramps 63 located on the ramp receiving groove 223 also move to the second cutting groove 222 and lift the end of the pipe 10.

[0052] Since the second mold 22 and the second cutter are used to process the second notch 1012 at the end of the pipe 10, the end of the pipe 10 is located at the intersection of the second placement groove 221 and the second cutting groove 222 during processing. After processing the V-shaped notch 1011 and the second notch 1012, the strength of the pipe 10 will be reduced, especially the area near the notch 101 where the strength is lowest. In this embodiment, the second demolding structure 62 can support the end of the processed pipe 10 during unloading, making it less likely for the portion of the pipe 10 located between the second notch 1012 and the V-shaped notch 1011 closest to the second notch 1012 to fall off, thus making it less likely for the pipe 10 to break at the V-shaped notch 1011, which helps to reduce the probability of damage to the pipe 10 and improve the yield.

[0053] The multiple demolding structures 6 also include a first demolding structure 61. In this embodiment, the notch processing device includes two first notch processing structures, and correspondingly, two first demolding structures 61, with each first demolding structure 61 corresponding to one of the two first notch processing structures. Each first demolding structure 61 also includes two unloading ramps 63, and the first mold 21 of the first notch processing structure corresponding to the first demolding structure 61 is located between the two unloading ramps 63. This arrangement allows the two unloading ramps 63 of the first demolding structure 61 to support both sides of the V-shaped notch 1011 on the pipe 10 during unloading, further reducing the risk of pipe 10 breakage and further improving the yield rate.

[0054] In some specific embodiments, the unloading device further includes an unloading conveying assembly, which includes an unloading frame 8 and an unloading conveying drive device and an unloading conveyor belt 81 disposed on the unloading frame 8. The unloading conveyor belt 81 is located directly below the lower end of the unloading ramp 63. The unloading conveyor belt 81 is inclinedly disposed on the unloading frame 8. The unloading conveying drive device can drive the unloading conveyor belt 81 to rotate. The unloading conveyor belt 81 includes a circular belt.

[0055] After the notch 101 is machined into the pipe 10, its strength is reduced. Therefore, in this embodiment, a circular belt is used as the feeding conveyor belt 81, which can mitigate the impact on the pipe 10 when it falls onto the feeding conveyor belt 81, thereby reducing the risk of damage to the pipe 10 and improving the yield.

[0056] Furthermore, the round belt is made of rubber, which has the characteristic of high elasticity. Using a round belt made of rubber can further absorb the impact when the pipe 10 falls onto the feeding conveyor belt 81, further reducing the risk of damage to the pipe 10 and improving the yield.

[0057] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A notch processing device for pipes, characterized in that: It includes a frame (1) and a mold (2), a cutting tool and a processing drive device (3) mounted on the frame (1). The cutting tool is connected to the processing drive device (3). The mold (2) is positioned in relation to the cutting tool. The cutting tool can process a notch (101) at the end of the tube (10). It also includes at least two opposing length-fixing devices (5), the mold (2) is located between the two length-fixing devices (5), the length-fixing device (5) includes a length-fixing drive device (51) and a length-fixing extruder (52) connected by transmission, the length-fixing drive device (51) is located on the frame (1), the length-fixing extruder (52) is located at the output end of the length-fixing drive device (51) and is located on the side of the length-fixing drive device (51) close to the mold (2), the length-fixing drive device (51) can drive the length-fixing extruder (52) to approach and axially extrude the pipe (10).

2. The pipe notch processing device according to claim 1, characterized in that: It also includes a clamping device (7), which is located on the side of the mold (2). The clamping device (7) includes a clamping drive device (73) and a first clamping member (71) and a second clamping member (72) arranged opposite to each other. The clamping drive device (73) and the first clamping member (71) are both provided on the frame (1). The second clamping member (72) is provided on the output end of the clamping drive device (73). The clamping drive device (73) can drive the second clamping member (72) to move closer to or away from the first clamping member (71). The clamping device (7) is used to clamp and position the pipe (10) placed on the mold (2).

3. The pipe notch processing device according to claim 1, characterized in that: It also includes a first notch processing structure, which includes a first mold (21) and a first cutting tool (41) respectively. The first mold (21) is provided with a first placement groove (211) and a V-shaped cutting groove (212) that are perpendicular to each other and connected. The first placement groove (211) is used to place the pipe (10). The first cutting tool (41) is provided with a V-shaped blade (412) that matches the V-shaped cutting groove (212). The first cutting tool (41) is connected to the processing drive device (3).

4. The pipe notch processing device according to claim 3, characterized in that: The bottom of the V-shaped groove (212) is provided with two chip removal sloping grooves (213). The two chip removal sloping grooves (213) are respectively located on both sides of the first placement groove (211). The chip removal sloping grooves (213) are inclined from top to bottom in the direction from close to to far away from the first placement groove (211).

5. The pipe notch processing apparatus according to claim 3 or 4, characterized in that: The first mold (21) is also provided with an air blowing channel, which connects the air inlet (214) on the side wall of the first mold (21) and the air outlet (215) at the bottom of the first placement groove (211).

6. A pipe processing equipment, characterized in that: Includes the notch processing apparatus for pipes as described in any one of claims 1 to 5.

7. The pipe processing equipment according to claim 6, characterized in that: The notch processing device further includes a second notch processing structure, which includes a second mold (22) and a second cutter (42) respectively. The second mold (22) is provided with a second placement groove (221) and a second cutting groove (222) that are perpendicular to each other and connected. The second placement groove (221) is used to place the pipe (10). The second cutter (42) is provided with a second cutting edge (421) that matches the second cutting groove (222). The second cutter (42) is driven to the processing drive device (3). The second notch processing structure is used to process notches (101) at the end of the pipe (10).

8. The pipe processing equipment according to claim 7, characterized in that: It also includes a feeding device, which includes a feeding drive device (9) and a demolding structure (6) connected by a transmission. The demolding structure (6) includes a feeding ramp (63). The feeding drive device (9) includes a feeding drive cylinder (91) mounted on the frame (1). The feeding ramp (63) and the feeding drive cylinder (91) are connected by a transmission. The upper end of the feeding ramp (63) corresponds to the position of the mold (2). When feeding, the feeding drive cylinder (91) drives the feeding ramp (63) to move upward, pushing the pipe (10) on the mold (2) to detach from the mold (2), so that the pipe (10) slides or rolls down along the feeding ramp (63).

9. The pipe processing equipment according to claim 8, characterized in that: The feeding device includes a plurality of the demolding structures (6), among which a second demolding structure (62) is included. The second demolding structure (62) includes two feeding ramps (63). The two feeding ramps (63) are arranged along the arrangement direction of the two fixed length devices (5). The second mold (22) is also provided with a ramp receiving groove (223). The ramp receiving groove (223) is located on the lower side of the second cutting groove (222) and communicates with the second cutting groove (222). One of the feeding ramps (63) of the second demolding structure (62) can extend into the ramp receiving groove (223).

10. The pipe processing equipment according to claim 8, characterized in that: The unloading device further includes an unloading conveying assembly, which includes an unloading frame (8) and an unloading conveying drive device and an unloading conveyor belt (81) disposed on the unloading frame (8). The unloading conveyor belt (81) is located directly below the lower end of the unloading ramp (63). The unloading conveyor belt (81) is inclinedly disposed on the unloading frame (8). The unloading conveying drive device can drive the unloading conveyor belt (81) to rotate. The unloading conveyor belt (81) includes a circular belt.

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