CN211104319U - Cutting machine conveyer belt circulation system - Google Patents

Abstract

The utility model discloses a cutting machine conveyer belt circulating system, wherein a driving mechanism for driving a conveyer belt to do circulating conveying motion between a feeding end and a discharging end is arranged on a frame of a cutting machine; the driving mechanism comprises a first driving roller group and a second driving roller group, wherein the first driving roller group is arranged on the surface of the bearing section in a relative mode, the second driving roller group is arranged on the back face of the bearing section, and the first driving roller group and/or the second driving roller group can movably displace in the direction close to or far away from the conveying belt; and the first driving roller group and/or the second driving roller group are/is provided with elastic components which are in a semi-force storage state, and the opposite pressure of the first driving roller group and the second driving roller group is continuously applied to the first driving roller group and/or the second driving roller group, so that the first driving roller group and the second driving roller group are jointly pressed against the surface and the back of the conveying belt. The conveying precision of the conveying belt is improved, and the requirement of continuous conveying is met.

Description

Cutting machine conveyer belt circulation system

Technical Field

The utility model relates to a decide equipment spare part, especially relate to a cutting machine conveyer belt circulation system.

Background

The cutting machine is a machine which presses a cutting die by means of the acting force of the movement of the machine to perform punching processing on the non-metal material. It is commonly used to cut flexible materials such as leather, cloth, etc. The existing cutting machine conveys materials through a conveying belt, when the cutting machine is used, the materials are firstly paved on the upper surface of the conveying belt, then a power supply is switched on, and the materials are cut by utilizing a cutting die.

When present cutting machine carried and is cut the material, generally adopted the conveyer belt, set up a first drive roll and a driven voller at conveyer belt both ends and cooperate motor intermittent type stall, in the twinkling of an eye that the conveyer belt stopped, the mechanism that cuts that is located conveyer belt upper portion cuts the material by cutting, cuts the mechanism afterwards and resets the conveyer belt and operates once more. However, the conveyer belt with such a structure has a large structure, and a certain gap is formed between the first driving roller and the driven roller and the conveyer belt, and the conveyer belt is easy to slip, so that the problem of poor product forming quality is caused. The driving structure of the conveying belt has the advantages that the conveying belt is dragged from one end to the other end through the traction mechanism arranged on the conveying belt, so that the phenomenon of tension accumulation and slippage caused by the fact that the first driving roller and the driven roller are connected in the conveying belt in a penetrating mode to be driven is avoided, and the driving structure needs to be reset and dragged again every time the driving structure is dragged for a certain distance, and uninterrupted conveying work cannot be achieved.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a cutting machine conveyer belt circulation system supports the surface and the back of bearing section respectively through first drive roller set and second drive roller set, and the drive makes it carry towards the unidirectional movement, makes it carry the precision higher, can reach the effect of continuous transport simultaneously.

The purpose of the utility model is realized by adopting the following technical scheme:

A cutting machine conveying belt circulating system comprises a rack and a conveying belt which is arranged on the rack and is of a closed-loop structure, wherein a cutting mechanism for cutting materials is arranged above the conveying belt; a bearing section for bearing materials is formed on one side, close to the cutting mechanism, of the conveying belt, one end of the bearing section is a feeding end, and the other end of the bearing section is a discharging end; the rack is provided with a driving mechanism for driving the conveying belt to do circulating conveying motion between the feeding end and the discharging end; the driving mechanism comprises a first driving roller group and a second driving roller group, wherein the first driving roller group is arranged on the surface of the bearing section in an opposite mode, the second driving roller group is arranged on the back face of the bearing section, and the first driving roller group and/or the second driving roller group can be movably displaced in a direction close to or far away from the conveying belt; and the first driving roller group and/or the second driving roller group are/is provided with elastic components, the elastic components are in a semi-force storage state, and opposite pressures of the first driving roller group and the second driving roller group are continuously applied to the first driving roller group and/or the second driving roller group, so that the first driving roller group and/or the second driving roller group are/is pressed against the surface and the back of the conveying belt together.

Further, the first driving roller group comprises at least one first driving roller and at least one first driven roller, and the first driving roller and the first driven roller are arranged on the surface of the bearing section at intervals along the length direction of the conveyor belt; the first driving roller and the first driven roller can independently move in the direction close to or far away from the second driving roller group, and the elastic component is arranged between the first driving roller and the first driven roller, is respectively connected with the first driving roller and the first driven roller, and continuously applies pressure towards the second driving roller group to the first driving roller and the first driven roller.

The first driving roller group further comprises a feeding roller, the feeding roller is arranged at one end, close to the feeding end, of the first driving roller group, and a gap for materials to enter is formed between the feeding roller and the surface of the bearing section; the diameter of the feeding roller is smaller than that of the first driving roller and that of the first driven roller.

Furthermore, straight rods are pivotally connected among the first driving roller, the first driven roller and the feeding roller, so that centers of circles among the first driving roller, the first driven roller and the feeding roller are connected to form a straight line; the elastic component is pivotally connected with the straight rod, so that the straight rod can swing relative to the elastic component.

Further, the first driving roller, the first driven roller and the feeding roller are in driving connection through a transmission belt.

Further, the second drive roller group comprises at least one second drive roller and a second driven roller; the second driving roller and the second driven roller are respectively arranged on the back of the bearing section opposite to the first driving roller and the first driven roller; the second driving roller and the second driven roller can independently move in the direction close to or far away from the first driving roller group, and the elastic component is arranged between the second driving roller and the second driven roller, is respectively connected with the second driving roller and the second driven roller, and continuously applies pressure towards the first driving roller group to the second driving roller and the second driven roller.

Furthermore, the conveying belt also comprises a circulating section which is arranged at one side far away from the cutting mechanism opposite to the bearing section; the second driving roller group further comprises a third driven roller, and the roller surface of the third driven roller is tangent to the back surface of the circulating section.

Further, the surface of the circulating section is provided with a fourth driven roller opposite to the third driven roller, and the roller surface of the fourth driven roller is tangent to the surface of the circulating section.

Further, the second driving roller group further comprises a fifth driven roller, and the fifth driven roller is arranged at one end, close to the feeding end, of the second driving roller group; the diameter of the fifth driven roller is smaller than that of the second driving roller and that of the second driven roller, and the roller surface of the fifth driven roller is tangent to the back surface of the bearing section.

Further, the second driving roller, the second driven roller, the third driven roller and the fifth driven roller are in driving connection through a transmission belt.

Compared with the prior art, the beneficial effects of the utility model reside in that:

The driving mechanism comprises a first driving roller group and a second driving roller group, wherein the first driving roller group and the second driving roller group are oppositely arranged on the surface of a bearing section of the conveying belt of the closed-loop structure, the second driving roller group is arranged on the back surface of the bearing section, the first driving roller group and the second driving roller group are respectively in tangent contact with the surface and the back surface of the bearing section, the first driving roller group and/or the second driving roller group are driven to roll, the conveying belt is driven to do circulating conveying motion towards a single direction, the two roller groups are respectively abutted against the two side surfaces of the conveying belt, the slipping phenomenon caused by the fact that the conveying belt is driven to accumulate tension is avoided by adopting a cross-connecting mode, the conveying process is more stable, and the conveying belt can be.

The first driving roller group and/or the second driving roller group can be movably displaced in the direction close to or far away from the conveying belt; the first driving roller group and/or the second driving roller group are/is provided with an elastic component which is in a semi-force accumulation state, pressure towards the first driving roller group and the second driving roller group is continuously applied to the first driving roller group and/or the second driving roller group so that the first driving roller group and the second driving roller group are jointly pressed against the surface and the back of the conveying belt, the second driving roller group theoretically performs a supporting function under a conventional state to keep the bearing section horizontal, the elastic component can increase the friction force between the first driving roller group, the second driving roller group and the conveying belt, reduce the slippage and improve the transmission precision, and meanwhile, when materials are conveyed from the feeding end to the discharging end, the materials cannot pass through the first driving roller group and the second driving roller group due to the pressure between the first driving roller group and the conveying belt, and the materials can abut against the first driving roller group and/or the second driving roller group, the elastic component is further compressed, in the process, the materials can be slightly flattened, and the conveying belt can continue to perform conveying movement to keep stable conveying.

Drawings

Fig. 1 is the schematic structural diagram of the conveying belt circulation system of the cutting machine of the present invention.

In the figure: 10. a conveyor belt; 11. a load-bearing section; 12. a circulation section; 111. a feeding end; 112. a discharge end; 13. coating the rubber roller; 20. a first drive roller set; 21. a first drive roll; 22. a first driven roller; 23. a feed roll; 231. a gap; 30. a second drive roller set; 31. a second drive roll; 32. a second driven roller; 33. a third driven roller; 34. a fourth driven roller; 35. a fifth driven roller; 40. an elastic component.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.

As shown in FIG. 1, in order to improve the conveying precision of the cutting machine conveyer belt 10 and to achieve the effect of continuous conveying, the utility model provides a circulating system of the cutting machine conveyer belt, which comprises a frame (not shown), a conveyer belt 10 mounted on the frame in a closed loop structure, a cutting mechanism (not shown) for cutting materials is arranged above the conveyer belt 10, in this example, in order to improve the rigidity of the conveyer belt 10, steel is adopted as the material of the conveyer belt 10, a plurality of rubber-coated rollers 13 are sleeved in the conveyer belt 10 to provide the functions of supporting and guiding, the bottom of the conveyor belt 10 is also provided with a plurality of rubber-covered rollers 13 as supporting and guiding members, the conveyor belt 10 can also be made of conventional belts, and the two ends of the conveyor belt 10 can also be respectively connected with the two ends of the conveyor belt 10 in a penetrating manner by using two rollers as supporting and guiding members like the conventional guiding structure. A bearing section 11 for bearing materials is formed at one side of the conveyer belt 10 close to the cutting mechanism, one end of the bearing section 11 is a feeding end 111, the other end is a discharging end 112, and a plurality of rubber coating rollers 13 are mainly gathered and arranged at two ends of the feeding end 111 and the discharging end 112, and support two ends of the conveyer belt 10 respectively to keep a certain tension of the bearing section 11;

In order to achieve the purpose of the present invention, a driving mechanism for driving the conveyer 10 to perform a circular conveying motion between the feeding end 111 and the discharging end 112 is disposed on the frame.

Specifically, the driving mechanism includes a first driving roller set 20 disposed on the surface of the bearing segment 11 and a second driving roller set 30 disposed on the back of the bearing segment 11, and the first driving roller set 20 and/or the second driving roller set 30 can be movably displaced in a direction close to or away from the conveyor belt 10, in this example, the second driving roller set 30 is fixed relative to the frame, has no displacement function, and mainly plays a role in supporting the bearing segment 11 to keep the bearing segment 11 horizontal, while the first driving roller set 20 plays a role in pressing the conveyor belt 10 against the second driving roller set 30. Furthermore, in order to maintain a certain friction between the first and second drive roller sets 20 and 30 and the bearing section 11, the elastic assemblies 40 are arranged on the first and second drive roller sets 20 and 30, the elastic assemblies 40 arranged on the first and second drive roller sets 20 and 30 are identical in structure, in a normal state, the first and second drive roller groups 20 and 30 are in contact with the surface and the back of the carrier segment 11 respectively and have a certain friction force, to ensure that the friction supports the first drive roller set 20 and/or the second drive roller set 30 to drive the belt 10, the resilient members 40 are in a semi-active state, in this case, again, the resilient members are provided only for the first drive roller set 20, the first drive roller set 20 is continuously pressed in the direction of the second drive roller set 30 so that the first drive roller set 20 presses the conveyor belt 10 against the surface of the second drive roller set 30.

The utility model discloses in the in-service use process, the workman will be cut the material and place on bearing section 11 from feed end 111, first drive roller set 20 and/or second drive roller set 30 start, intermittent type opens stops to roll makes conveyer belt 10 drive its operation towards discharge end 112 direction intermittent type by feed end 111, when being cut material transport through first drive roller set 20, the material can push away first drive roller set 20 because its thickness reason, make first drive roller set 20 towards keeping away from bearing section 11 direction displacement a little, elastic component 40 further compresses, break away from the continuation towards discharge end 112 direction transport from first drive roller set 20 rear end afterwards, and when the material was through cutting the mechanism below, in the twinkling of an eye when conveyer belt 10 stops, it makes the material shaping then to press down to decide to cut the mechanism, rise afterwards and reset, in cutting the mechanism reset in-process, first drive roller set 20 and/or second drive roller set 30 make the material move certain distance towards discharge end 112 again and drive conveyer belt 10 again The cutting mechanism is stopped again to cut and shape, and the actions are repeated continuously, and finally the formed material is discharged from the discharging end 112. Through above-mentioned actuating mechanism drive conveyer belt 10, for traditional 10 both ends of conveyer belt cup joint the mode transmission of drive roll and driven voller drive more steady, avoided the phenomenon of skidding that the tension accumulation between drive roll, driven voller and the conveyer belt 10 leads to, improved 10 transmission precision of conveyer belt, also satisfied continuous transport's requirement simultaneously, improve material cutting precision.

Further, the first driving roller set 20 includes at least one first driving roller 21 and at least one first driven roller 22, the first driving roller 21 and the first driven roller 22 are disposed on the surface of the carrying section 11 at intervals along the length direction of the conveying belt 10, in this example, one first driving roller 21 and one first driven roller 22 are respectively employed, and both the first driving roller 21 and the first driven roller 22 are transversely disposed on the surface of the carrying section 11, so that the central axes thereof are perpendicular to the conveying direction of the conveying belt 10. The first driving roller 21 and the first driven roller 22 can independently move in the direction close to or far away from the second driving roller set 30, when materials enter the first driving roller set 20 and the bearing section 11, the first driving roller 21 and the first driven roller 22 can be independently propped by the materials to be far away from the surface of the bearing section 11, and the first driving roller 21 and the first driven roller 22 are more adaptive and fit to the surface of the materials, when the materials are located between the first driving roller set 20 and the bearing section 11, the friction force between the first driving roller set 20 and the materials is improved, so that the materials can drive the conveying belt 10 in a friction mode, or two groups of driving mechanisms are arranged on the bearing section 11, or the materials are propped by the first driving roller set 20, the conveying belt 10 is driven by the second driving roller set 30, and when one material enters one of the first driving roller sets 20, the conveying belt 10 still. The elastic assembly 40 is arranged between the first driving roller 21 and the first driven roller 22 and is respectively connected with the first driving roller 21 and the first driven roller 22 to continuously apply pressure towards the direction of the second driving roller group 30 to the first driving roller 21 and the first driven roller 22, in this example, the first driven roller 22 is positioned at one end of the first driving roller group 20 close to the feeding end 111, the first driving roller 21 is positioned at one end of the first driving roller group 20 close to the discharging end 112, the material can enter between the first driven roller 22 and the bearing section 11 first, then enter between the first driving roller 21 and the bearing section 11, the first driving roller 21 and the first driven roller 22 can be singly propped against the material to separate from the surface of the bearing section 11, and after the material is conveyed away, the material is singly propped against the surface of the bearing section 11 downwards, so that the first driving roller group 20 is more compliant with the surface of the material, and the conveying precision is improved.

In order to make the material enter the first driving roller set 20 more smoothly, the first driving roller set 20 further includes a feeding roller 23, the feeding roller 23 is disposed at one end of the first driving roller set 20 close to the feeding end 111, in this example, the first driving roller 21, the first driven roller 22 and the feeding roller 23 are sequentially arranged from the discharging end 112 to the feeding end 111, a gap 231 for the material to enter is formed between the feeding roller 23 and the surface of the bearing section 11, so that the material enters the first driving roller set 20, firstly enters the gap 231, is slightly pressed by the feeding roller 23, and then enters between the first driven roller 22 and the surface of the bearing section 11, thereby avoiding the phenomenon that the edge of the material is difficult to tilt to enter between the first driven roller 22 and the surface of the bearing section 11, and making the material transportation more stable. Preferably, the feed roller 23 has a smaller diameter than the first drive roller 21 and the first driven roller 22.

As a further preferred embodiment, straight rods are pivotally connected among the first driving roller 21, the first driven roller 22 and the feeding roller 23, so that centers of circles among the first driving roller 21, the first driven roller 22 and the feeding roller 23 are connected in a straight line; the elastic component 40 is pivotally connected with the straight rod, so that the straight rod can swing relative to the elastic component 40, in this example, the elastic component 40 is a compression spring, the elastic component 40 is connected with the straight rod through a rotating shaft, the rotating shaft is arranged between the first driving roller 21 and the first driven roller 22, when a material enters the bottom of the feeding roller 23 and further enters the first driven roller 22 and the surface of the bearing section 11, the first driven roller 22 is jacked up, further the straight rod is driven to be tilted, so that the first driving roller 21 further applies pressure in a direction close to the surface of the bearing section 11, and then when the material enters the position between the first driving roller 21 and the surface of the bearing section 11, the first driving roller 21 is jacked up, the straight rod is tilted backwards, so that the first driven roller 22 presses the conveying belt 10, the thickness of the material can be determined, and meanwhile, it is ensured that the friction between the first driving roller set 20 and the.

In order to increase the contact area between the first driving roller set 20 and the conveying belt 10, the first driving roller 21, the first driven roller 22 and the feeding roller 23 are in driving connection through a transmission belt, and the surface of the transmission belt, which is in contact with the surface of the bearing segment 11, can be provided with an anti-skid layer.

The second drive roller group 30 includes at least one second drive roller 31 and at least one second driven roller 32. The second driving roller 31 and the second driven roller 32 are respectively arranged on the back of the bearing section 11 opposite to the first driving roller 21 and the first driven roller 22, the second driving roller 31 and the second driven roller 32 can independently move in a direction close to or far away from the first driving roller group 20, the elastic assembly 40 is arranged between the second driving roller 31 and the second driven roller 32 and respectively connected with the second driving roller 31 and the second driven roller 32, and pressure towards the first driving roller group 20 is continuously applied to the second driving roller 31 and the second driven roller 32. In this example, one of the second driving roller 31 and one of the second driven roller 32 are respectively used, and only the elastic component 40 is disposed on the first driving roller set 20, the second driving roller 31 is disposed at the bottom of the first driving roller 21, the second driven roller 32 is disposed at the bottom of the first driven roller 22, so as to support the conveyor belt 10, while the first driving roller 21 and the first driven roller 22 are supported, a connecting line between centers of circles of the second driving roller 31 and the second driven roller 32 is parallel to the bearing section 11, and a roller surface of the second driving roller 31 and a roller surface of the second driven roller 32 are tangent to a back surface of the bearing section 11, and a connecting line between the roller surfaces of the second driving roller 31 and the second driven roller 32 is parallel to a connecting line between the feeding end 111 and the discharging end 112.

The conveyer belt 10 also comprises a circulating section 12 which is opposite to the bearing section 11 and is arranged at one side far away from the cutting mechanism; the second driving roller group 30 further comprises a third driven roller 33, a roller surface of the third driven roller 33 is tangent to a back surface of the circulation section 12, the third driven roller 33 is used for supporting the circulation section 12 to ensure that the conveying belt 10 has a certain tension, in this example, the second driven roller 32 and the third driven roller 33 are powered by the second driving roller 31, and the conveying smoothness of the conveying belt 10 is further improved.

In order to further improve the stability of the conveying belt 10 during conveying, the surface of the circulating section 12 is provided with a fourth driven roller 34 opposite to the third driven roller 33, the roller surface of the fourth driven roller 34 is tangent to the surface of the circulating section 12, the third driven roller 33 and the fourth driven roller 34 are respectively positioned on the surface and the back of the circulating section 12, the conveying belt 10 is stabilized to avoid jumping, in this example, the diameters of the second driving roller 31, the second driven roller 32 and the third driven roller 33 are constant, so that the conveying speed of the conveying belt 10 is more stable, the fourth driven roller 34 is arranged on the surface of the circulating section 12, and power is derived from the conveying belt 10 and mainly plays a role in stabilizing conveying.

Further, the second driving roller group 30 further includes a fifth driven roller 35, and the fifth driven roller 35 is disposed at an end of the second driving roller group 30 close to the feeding end 111; the diameter of the fifth driven roller 35 is smaller than that of the second driven roller 32, the roller surface of the fifth driven roller 35 is tangent to the back surface of the bearing section 11, and in the embodiment, the fifth driven roller 35 is arranged at the lower part of the first driven roller 22 and provides a supporting platform for materials to enter the gap.

In order to increase the contact area between the second drive roller group 30 and the conveyor belt 10, the second driven roller 32, the third driven roller 33 and the fifth driven roller 35 are in driving connection through a transmission belt.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims (10)

1. A cutting machine conveying belt circulating system comprises a rack and a conveying belt which is arranged on the rack and is of a closed-loop structure, wherein a cutting mechanism for cutting materials is arranged above the conveying belt; a bearing section for bearing materials is formed on one side, close to the cutting mechanism, of the conveying belt, one end of the bearing section is a feeding end, and the other end of the bearing section is a discharging end; the method is characterized in that:

The rack is provided with a driving mechanism for driving the conveying belt to do circulating conveying motion between the feeding end and the discharging end;

The driving mechanism comprises a first driving roller group and a second driving roller group, wherein the first driving roller group is arranged on the surface of the bearing section in an opposite mode, the second driving roller group is arranged on the back face of the bearing section, and the first driving roller group and/or the second driving roller group can be movably displaced in a direction close to or far away from the conveying belt; and the first driving roller group and/or the second driving roller group are/is provided with elastic components, the elastic components are in a semi-force storage state, and opposite pressures of the first driving roller group and the second driving roller group are continuously applied to the first driving roller group and/or the second driving roller group, so that the first driving roller group and/or the second driving roller group are/is pressed against the surface and the back of the conveying belt together.

2. The cutting machine conveyor belt circulation system of claim 1, wherein: the first driving roller group comprises at least one first driving roller and at least one first driven roller, and the first driving roller and the first driven roller are arranged on the surface of the bearing section at intervals along the length direction of the conveyor belt;

The first driving roller and the first driven roller can independently move in the direction close to or far away from the second driving roller group, and the elastic component is arranged between the first driving roller and the first driven roller, is respectively connected with the first driving roller and the first driven roller, and continuously applies pressure towards the second driving roller group to the first driving roller and the first driven roller.

3. The cutting machine conveyor belt circulation system of claim 2, wherein: the first driving roller group further comprises a feeding roller, the feeding roller is arranged at one end, close to the feeding end, of the first driving roller group, and a gap for materials to enter is formed between the feeding roller and the surface of the bearing section; the diameter of the feeding roller is smaller than that of the first driving roller and that of the first driven roller.

4. The cutting machine conveyor belt circulation system of claim 3, wherein: straight rods are pivotally connected among the first driving roller, the first driven roller and the feeding roller, so that the centers of circles among the first driving roller, the first driven roller and the feeding roller are connected to form a straight line; the elastic component is pivotally connected with the straight rod, so that the straight rod can swing relative to the elastic component.

5. The cutting machine conveyor belt circulation system of claim 4, wherein: the first driving roller, the first driven roller and the feeding roller are in driving connection through a transmission belt.

6. The cutting machine conveyor belt circulation system of claim 2, wherein: the second driving roller group comprises at least one second driving roller and a second driven roller;

The second driving roller and the second driven roller are respectively arranged on the back of the bearing section opposite to the first driving roller and the first driven roller; the second driving roller and the second driven roller can independently move in the direction close to or far away from the first driving roller group, and the elastic component is arranged between the second driving roller and the second driven roller, is respectively connected with the second driving roller and the second driven roller, and continuously applies pressure towards the first driving roller group to the second driving roller and the second driven roller.

7. The cutting machine conveyor belt circulation system of claim 6, wherein: the conveying belt also comprises a circulating section which is opposite to the bearing section and is arranged at one side far away from the cutting mechanism; the second driving roller group further comprises a third driven roller, and the roller surface of the third driven roller is tangent to the back surface of the circulating section.

8. The cutting machine conveyor belt circulation system of claim 7, wherein: and a fourth driven roller opposite to the third driven roller is arranged on the surface of the circulating section, and the roller surface of the fourth driven roller is tangent to the surface of the circulating section.

9. The cutting machine conveyor belt circulation system of claim 7, wherein: the second driving roller group further comprises a fifth driven roller, and the fifth driven roller is arranged at one end, close to the feeding end, of the second driving roller group; the diameter of the fifth driven roller is smaller than that of the second driving roller and that of the second driven roller, and the roller surface of the fifth driven roller is tangent to the back surface of the bearing section.

10. The cutting machine conveyor belt circulation system of claim 9, wherein: the second driving roller, the second driven roller, the third driven roller and the fifth driven roller are in driving connection through a transmission belt.

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