A conveyor belt circulation system for cutting machine

Abstract

The present invention discloses a cutting machine conveyor belt circulation system, wherein a driving mechanism for driving the conveyor belt to perform a cyclic conveying motion between a feeding end and a discharging end is arranged on the frame of the cutting machine; the driving mechanism comprises a first driving roller group relatively arranged on the surface of a bearing section and a second driving roller group arranged on the back of the bearing section, and the first driving roller group and / or the second driving roller group can be movable and displaced in a direction close to or away from the conveyor belt; an elastic component is arranged on the first driving roller group and / or the second driving roller group, and the elastic component is in a semi-accumulated state, and continuously applies pressure of the first driving roller group and the second driving roller group toward each other to make the first driving roller group and the second driving roller group press against the surface and back of the conveyor belt together. The conveying accuracy of the conveyor belt is improved to meet the needs of continuous conveying.

Description

Technical Field

[0001] The invention relates to a cutting equipment component, in particular to a cutting machine conveyor belt circulation system. Background Art

[0002] A cutting machine is a machine that uses the force of the machine's movement to pressurize the die cutter to punch non-metallic materials. It is usually used to cut flexible materials such as leather and cloth. Existing cutting machines convey materials through a conveyor belt. When in use, the material is first laid flat on the upper surface of the conveyor belt, and then the power is turned on to cut the material with the die cutter.

[0003] When the existing cutting machine transports the cut material, a conveyor belt is generally used. A first active roller and a driven roller are arranged at both ends of the conveyor belt and the motor is intermittently stopped. At the moment the conveyor belt stops, the cutting mechanism located on the upper part of the conveyor belt cuts the cut material, and then the cutting mechanism resets the conveyor belt to operate again. However, due to the large structure of the conveyor belt of this structure, there is a certain gap between the first active roller and the driven roller and the conveyor belt, and it is easy to slip, resulting in the problem of poor product molding quality. There is also a conveyor belt driving structure, which uses a traction mechanism set on the conveyor belt to drag the conveyor belt from one end to the other end, avoiding the phenomenon of tension accumulation and slipping caused by the first active roller and the driven roller being connected in the conveyor belt for driving, but the transmission structure must be reset and dragged again after dragging a certain distance, and uninterrupted transportation cannot be achieved. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a cutting machine conveyor belt circulation system, in which a first drive roller group and a second drive roller group respectively abut against the surface and back of the load-bearing section to drive it to move in a single direction for transportation, so that its conveying accuracy is higher and at the same time, a continuous conveying effect can be achieved.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A cutting machine conveyor belt circulation system comprises a frame, a conveyor belt installed on the frame in a closed loop structure, a cutting mechanism for cutting materials is arranged above the conveyor belt; a bearing section for carrying materials is formed on the side of the conveyor belt close to the cutting mechanism, one end of the bearing section is a feed end, and the other end is a discharge end; a driving mechanism for driving the conveyor belt to perform a circular conveying motion between the feed end and the discharge end is arranged on the frame; the driving mechanism comprises a first driving roller group relatively arranged on the surface of the bearing section and a second driving roller group arranged on the back of the bearing section, the first driving roller group and / or the second driving roller group can be movable and displaced in a direction close to or away from the conveyor belt; an elastic component is arranged on the first driving roller group and / or the second driving roller group, the elastic component is in a semi-storage state, and the first driving roller group and / or the second driving roller group are continuously applied with pressure from the first driving roller group and the second driving roller group to each other, so that the first driving roller group and / or the second driving roller group are pressed against the surface and back of the conveyor belt together.

[0007] Furthermore, the first driving roller group includes at least one first active roller and at least one first driven roller, and the first active 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 active roller and the first driven roller can move independently in the direction approaching or away from the second driving roller group, and the elastic component is arranged between the first active roller and the first driven roller and is respectively connected to the first active roller and the first driven roller, so as to continuously apply pressure toward the second driving roller group to the first active roller and the first driven roller.

[0008] Furthermore, the first driving roller group also includes a feed roller, which is arranged at one end of the first driving roller group close to the feed end and forms a gap with the surface of the bearing section for material to enter; the feed roller has a smaller diameter than the first active roller and the first driven roller.

[0009] Furthermore, a straight rod is pivotally connected between the first active roller, the first driven roller and the feed roller, so that the centers of the circles of the first active roller, the first driven roller and the feed roller are connected in a straight line; the elastic component is pivotally connected to the straight rod, so that the straight rod can swing relative to the elastic component.

[0010] Furthermore, the first active roller, the first driven roller and the feed roller are connected by a transmission belt.

[0011] Furthermore, the second driving roller group includes at least one second active roller and a second driven roller; the second active roller and the second driven roller are respectively arranged on the back side of the bearing section opposite to the first active roller and the first driven roller; the second active roller and the second driven roller can move independently in the direction approaching or away from the first driving roller group, and the elastic component is arranged between the second active roller and the second driven roller and is respectively connected to the second active roller and the second driven roller, so as to continuously apply pressure toward the first driving roller group to the second active roller and the second driven roller.

[0012] Furthermore, the conveyor belt also includes a circulation section arranged opposite to the bearing section and on a side away from the cutting mechanism; the second driving roller group also includes a third driven roller, and the roller surface of the third driven roller is tangent to the back side of the circulation section.

[0013] Furthermore, a fourth driven roller opposite to the third driven roller is provided on the surface of the circulation section, and a roller surface of the fourth driven roller is tangent to the surface of the circulation section.

[0014] Furthermore, the second driving roller group also includes a fifth driven roller, which is arranged at one end of the second driving roller group close to the feed end; the diameter of the fifth driven roller is smaller than that of the second active roller and the second driven roller, and the roller surface of the fifth driven roller is tangent to the back side of the bearing section.

[0015] Furthermore, the second active roller, the second driven roller, the third driven roller and the fifth driven roller are connected by a transmission belt.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] The driving mechanism includes a first driving roller group which is relatively arranged on the surface of the load-bearing section of the conveyor belt of the closed-loop structure, and a second driving roller group which is arranged on the back side of the load-bearing section. The first driving roller group and the second driving roller group are in tangential contact with the surface and the back side of the load-bearing section respectively. By driving the first driving roller group and / or the second driving roller group to roll, the conveyor belt is driven to perform a circular conveying motion in a single direction. The two roller groups respectively abut against the two side surfaces of the conveyor belt to avoid the slipping phenomenon caused by the accumulation of tension when the conveyor belt is driven in a through-connection manner. The conveying process is more stable, and the conveyor belt can be moved uninterruptedly by driving the first driving roller group and / or the second driving roller group.

[0018] The first drive roller group and / or the second drive roller group can be movable and displaced in the direction of approaching or moving away from the conveyor belt; an elastic component is arranged on the first drive roller group and / or the second drive roller group, and the elastic component is in a semi-accumulated state, and continuously applies pressure toward the first drive roller group and the second drive roller group to the first drive roller group and / or the second drive roller group, so that the first drive roller group and the second drive roller group are pressed against the surface and back of the conveyor belt together. The second drive roller group theoretically plays a supporting role under normal conditions to keep the bearing section horizontal. The elastic component can increase the friction between the first drive roller group, the second drive roller group and the conveyor belt, reduce slippage, and improve transmission accuracy. At the same time, when materials are transported from the feed end to the discharge end, the pressure between the first drive roller group and the second drive roller group and the conveyor belt will not cause the materials to be unable to pass, and the materials will press against the first drive roller group and / or the second drive roller group to further compress the elastic component. In this process, the materials can be slightly flattened, and the conveyor belt can continue to perform conveying movement to maintain smooth conveying. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the conveyor belt circulation system of the cutting machine of the present invention.

[0020] In the figure: 10, conveyor belt; 11, bearing section; 12, circulation section; 111, feed end; 112, discharge end; 13, rubber-coated roller; 20, first drive roller group; 21, first active roller; 22, first driven roller; 23, feed roller; 231, gap; 30, second drive roller group; 31, second active roller; 32, second driven roller; 33, third driven roller; 34, fourth driven roller; 35, fifth driven roller; 40, elastic component. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] like Figure 1As shown, in order to improve the conveying accuracy of the cutting machine conveyor belt 10 and enable it to achieve the effect of uninterrupted conveying, the present invention provides a cutting machine conveyor belt circulation system, which includes a frame (not shown), a conveyor belt 10 installed on the frame in a closed loop structure, and a cutting mechanism (not shown) for cutting materials is arranged above the conveyor belt 10. In this example, in order to improve the rigidity of the conveyor belt 10, steel is used as the material of the conveyor belt 10. A plurality of rubber-coated rollers 13 are sleeved in the conveyor belt 10 to provide support and guidance, and a plurality of rubber-coated rollers 13 are also provided at the bottom of the conveyor belt 10 as support guide members. Of course, the conveyor belt 10 can also be made of traditional belts and other materials. The two ends of the conveyor belt 10 can also be made of two rollers connected to the two ends of the conveyor belt 10 as support guide members as in the traditional guide structure. A side of the conveyor belt 10 close to the cutting mechanism forms a bearing section 11 for bearing materials. One end of the bearing section 11 is a feed end 111, and the other end is a discharge end 112. A plurality of rubber-coated rollers 13 are mainly arranged at both ends of the feed end 111 and the discharge end 112, respectively supporting both ends of the conveyor belt 10 so that the bearing section 11 maintains a certain tension.

[0023] In order to achieve the purpose of the present invention, a driving mechanism for driving the conveyor belt 10 to perform a cyclic conveying motion between the feed end 111 and the discharge end 112 is provided on the frame.

[0024] Specifically, the driving mechanism includes a first driving roller group 20 relatively arranged on the surface of the bearing section 11 and a second driving roller group 30 arranged on the back side of the bearing section 11. The first driving roller group 20 and / or the second driving roller group 30 can be movable in the direction of approaching or moving away from the conveyor belt 10. In this example, the second driving roller group 30 is relatively fixed to the frame and has no displacement function. It mainly plays the role of supporting the bearing section 11 to keep the bearing section 11 horizontal, while the first driving roller group 20 plays the function of pressing the conveyor belt 10 against the second driving roller group 30. Furthermore, in order to maintain a certain friction force between the first drive roller group 20 and the second drive roller group 30 and the bearing section 11, an elastic component 40 is provided on the first drive roller group 20 and / or the second drive roller group 30. The elastic components 40 provided on the first drive roller group 20 and the second drive roller group 30 have the same structure. Under normal conditions, the first drive roller group 20 and the second drive roller group 30 are in contact with the surface and back of the bearing section 11 respectively and have a certain friction force. In order to ensure that the friction force can support the first drive roller group 20 and / or the second drive roller group 30 to drive the conveyor belt 10, the elastic component 40 is in a semi-accumulated state. In this example, similarly, an elastic component is only provided for the first drive roller group 20, and pressure is continuously applied to the first drive roller group 20 in the direction of the second drive roller group 30, so that the first drive roller group 20 presses the conveyor belt 10 against the surface of the second drive roller group 30.

[0025] In the actual use of the present invention, a worker places the cut material on the load-bearing section 11 from the feed end 111, and the first drive roller set 20 and / or the second drive roller set 30 are started, and the conveyor belt 10 is intermittently driven to rotate from the feed end 111 to the discharge end 112. When the cut material is conveyed through the first drive roller set 20, the material will push the first drive roller set 20 due to its thickness, causing the first drive roller set 20 to slightly move away from the load-bearing section 11, and the elastic component 40 is further compressed. , then it detaches from the rear end of the first driving roller group 20 and continues to be transported toward the discharge end 112. When the material passes under the cutting mechanism, the moment the conveyor belt 10 stops, the cutting mechanism presses down to cut and shape the material, and then rises to reset. During the resetting process of the cutting mechanism, the first driving roller group 20 and / or the second driving roller group 30 drive the conveyor belt 10 again to move the material toward the discharge end 112 for a certain distance and stop again to be cut and shaped by the cutting mechanism. The above actions are repeated continuously and the shaped material is finally discharged from the discharge end 112. Driving the conveyor belt 10 through the above driving mechanism is more stable than the traditional driving method of connecting the active roller and the driven roller at both ends of the conveyor belt 10, avoiding the slippage caused by the accumulation of tension between the active roller, the driven roller and the conveyor belt 10, improving the transmission accuracy of the conveyor belt 10, and also meeting the requirements of continuous transportation and improving the material cutting accuracy.

[0026] Furthermore, the first driving roller group 20 includes at least one first active roller 21 and at least one first driven roller 22. The first active roller 21 and the first driven roller 22 are arranged on the surface of the load-bearing section 11 at intervals along the length direction of the conveyor belt 10. In this example, one first active roller 21 and one first driven roller 22 are each used. The first active roller 21 and the first driven roller 22 are both transversely arranged on the surface of the load-bearing section 11, so that their central axes are perpendicular to the conveying direction of the conveyor belt 10. The first active roller 21 and the first driven roller 22 can move independently in the direction of approaching or moving away from the second driving roller group 30, so that when the material enters between the first driving roller group 20 and the load-bearing section 11, the first active roller 21 and the first driven roller 22 can be pushed away from the surface of the load-bearing section 11 by the material independently, and are more adapted to and fit the surface of the material. When the material is between the first driving roller group 20 and the load-bearing section 11, the friction between the first driving roller group 20 and the material is increased, so that the material can drive the conveyor belt 10 by friction, or two sets of driving mechanisms are set on the load-bearing section 11, or the material is pressed by the first driving roller group 20, and the conveyor belt 10 is driven by the second driving roller group 30, to ensure that when a material enters one of the first driving roller groups 20, the conveyor belt 10 still maintains the conveying power. The elastic component 40 is arranged between the first active roller 21 and the first driven roller 22 and is connected to the first active roller 21 and the first driven roller 22 respectively, so as to continuously apply pressure toward the second driving roller group 30 to the first active roller 21 and the first driven roller 22. In this example, the first driven roller 22 is located at the end of the first driving roller group 20 close to the feeding end 111, and the first active roller 21 is located at the end of the first driving roller group 20 close to the discharging end 112. The material will first enter between the first driven roller 22 and the bearing section 11, and then enter between the first active roller 21 and the bearing section 11, while the first active roller 21 and the first driven roller 22 will be pushed away from the surface of the bearing section 11 by the material alone. When the material is transported away, they will be pressed down against the surface of the bearing section 11 alone, so that the first driving roller group 20 and the material surface are more in line with each other, thereby improving the conveying accuracy.

[0027] In order to make the material enter the first driving roller group 20 more smoothly, the first driving roller group 20 also includes a feed roller 23, which is arranged at one end of the first driving roller group 20 close to the feed end 111. In this example, the first active roller 21, the first driven roller 22 and the feed roller 23 are arranged in sequence from the discharge end 112 to the feed end 111, and the feed roller 23 and the surface of the bearing section 11 form a gap 231 for the material to enter, so that when the material enters the first driving roller group 20, it first enters the gap 231 and is slightly pressed by the feed roller 23, and then enters between the first driven roller 22 and the surface of the bearing section 11, so as to avoid the phenomenon that the edge of the material is difficult to enter between the first driven roller 22 and the surface of the bearing section 11 due to the warping of the material edge, so that the material conveying is more stable. Preferably, the diameter of the feed roller 23 is smaller than that of the first active roller 21 and the first driven roller 22.

[0028] As a further preferred embodiment, a straight rod is pivotally connected between the first active roller 21, the first driven roller 22 and the feed roller 23, so that the centers of the circles of the first active roller 21, the first driven roller 22 and the feed roller 23 are connected in a straight line; the elastic component 40 is pivotally connected to 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, and the elastic component 40 is connected to the straight rod through a rotating shaft, which is arranged between the first active roller 21 and the first driven roller 22. When the material enters the feed roller, When the material passes through the bottom of the roller 23 and then enters the first driven roller 22 and the surface of the load-bearing section 11, the first driven roller 22 is lifted up, thereby driving the straight rod to tilt up so that the first active roller 21 is further pressed toward the surface of the load-bearing section 11. Subsequently, when the material enters between the first active roller 21 and the surface of the load-bearing section 11, the first active roller 21 is lifted up, and the straight rod tilts backward so that the first driven roller 22 presses the conveyor belt 10, which can identify the thickness of the material while ensuring that the friction between the first drive roller group 20 and the conveyor belt 10 is sufficient to drive the conveyor belt 10.

[0029] In order to increase the contact area between the first driving roller group 20 and the conveyor belt 10, the first active roller 21, the first driven roller 22 and the feed roller 23 are connected by a transmission belt drive, and an anti-skid layer can be provided on the side of the transmission belt that contacts the surface of the bearing section 11.

[0030] The second driving roller group 30 includes at least one second active roller 31 and at least one second driven roller 32. The second active roller 31 and the second driven roller 32 are respectively arranged on the back side of the bearing section 11 opposite to the first active roller 21 and the first driven roller 22. The second active roller 31 and the second driven roller 32 can move individually in the direction close to or away from the first driving roller group 20. The elastic component 40 is arranged between the second active roller 31 and the second driven roller 32 and is respectively connected to the second active roller 31 and the second driven roller 32, so as to continuously apply pressure to the second active roller 31 and the second driven roller 32 in the direction of the first driving roller group 20. A plane that provides support for the conveyor belt 10. In this example, one second active roller 31 and one second driven roller 32 are each used and only the elastic component 40 is arranged on the first driving roller group 20. The second active roller 31 is arranged at the bottom of the first active roller 21, and the second driven roller 32 is arranged at the bottom of the first driven roller 22. While carrying the conveyor belt 10, the first active roller 21 and the first driven roller 22 are supported. The line between the centers of the second active roller 31 and the second driven roller 32 is parallel to the bearing section 11 and the roller surfaces are tangent to the back of the bearing section 11. The line between the roller surfaces of the second active roller 31 and the second driven roller 32 is parallel to the line between the feed end 111 and the discharge end 112.

[0031] The conveyor belt 10 also includes a circulation section 12 which is arranged opposite to the load-bearing section 11 and on the side away from the cutting mechanism; the second driving roller group 30 also includes a third driven roller 33, the roller surface of the third driven roller 33 is tangent to the back side of the circulation section 12, and the third driven roller 33 is used to support the circulation section 12 to ensure that the conveyor belt 10 has a certain tension. In this example, the power of the second driven roller 32 and the third driven roller 33 comes from the second active roller 31, which further improves the conveying stability of the conveyor belt 10.

[0032] In order to further improve the stability of the conveyor belt 10 during the conveying process, a fourth driven roller 34 opposite to the third driven roller 33 is provided on the surface of the circulation section 12, and the roller surface of the fourth driven roller 34 is tangent to the surface of the circulation section 12. The third driven roller 33 and the fourth driven roller 34 are respectively located on the surface and back of the circulation section 12 to stabilize the conveyor belt 10 and prevent it from jumping. In this example, the diameters of the second active roller 31, the second driven roller 32 and the third driven roller 33 are consistent, so that the conveying speed of the conveyor belt 10 is more stable, and the fourth driven roller 34 is arranged on the surface of the circulation section 12. The power comes from the conveyor belt 10, and it mainly plays a role in stabilizing the transportation.

[0033] Furthermore, the second driving roller group 30 also includes a fifth driven roller 35, which is arranged at one end of the second driving roller group 30 close to the feed end 111; the diameter of the fifth driven roller 35 is smaller than that of the second driven roller 32, and the roller surface of the fifth driven roller 35 is tangent to the back side of the bearing section 11. In this example, the fifth driven roller 35 is arranged at the lower part of the first driven roller 22 to provide a support platform for the material to enter the gap.

[0034] In order to increase the contact area between the second driving roller set 30 and the conveyor belt 10 , the second driven roller 32 , the third driven roller 33 and the fifth driven roller 35 are connected by a driving belt.

[0035] The above-mentioned embodiments are only preferred embodiments of the present invention and cannot be used to limit the scope of protection of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A cutting machine conveyor belt circulation system, comprising a frame, a conveyor belt installed on the frame in a closed loop structure, a cutting mechanism for cutting materials is arranged above the conveyor belt; a side of the conveyor belt close to the cutting mechanism forms a bearing section for carrying materials, one end of the bearing section is a feeding end, and the other end is a discharging end; the characteristics are: The frame is provided with a driving mechanism for driving the conveyor belt to perform a cyclic conveying motion between the feed end and the discharge end; The driving mechanism comprises a first driving roller group relatively arranged on the surface of the bearing section and a second driving roller group arranged on the back side of the bearing section, wherein the first driving roller group and / or the second driving roller group can be movable in a direction close to or away from the conveyor belt; an elastic component is arranged on the first driving roller group and / or the second driving roller group, and the elastic component is in a semi-power storage state, and continuously applies pressure of the first driving roller group and the second driving roller group toward each other 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 pressed against the surface and back side of the conveyor belt together; The first driving roller group includes at least one first active roller and at least one first driven roller, and the first active 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 active roller and the first driven roller can move independently in a direction close to or away from the second driving roller group, and the elastic component is arranged between the first active roller and the first driven roller and is connected to the first active roller and the first driven roller respectively, so as to continuously apply pressure to the first active roller and the first driven roller in a direction toward the second driving roller group; The first driving roller group further includes a feed roller, which is arranged at one end of the first driving roller group close to the feed end and forms a gap with the surface of the bearing section for materials to enter; the feed roller has a smaller diameter than the first active roller and the first driven roller; A straight rod is pivotally connected between the first active roller, the first driven roller and the feed roller so that the centers of the circles of the first active roller, the first driven roller and the feed roller are connected in a straight line; the elastic component is pivotally connected to the straight rod so that the straight rod can swing relative to the elastic component.

2. The cutting machine conveyor belt circulation system according to claim 1, characterized in that: The first active roller, the first driven roller and the feed roller are connected by a transmission belt.

3. The cutting machine conveyor belt circulation system according to claim 1, characterized in that: The second driving roller group includes at least one second active roller and a second driven roller; The second active roller and the second driven roller are respectively arranged on the back side of the bearing section opposite to the first active roller and the first driven roller; The second active roller and the second driven roller can move independently in a direction close to or away from the first driving roller group. The elastic component is arranged between the second active roller and the second driven roller and is connected to the second active roller and the second driven roller respectively, so as to continuously apply pressure toward the first driving roller group to the second active roller and the second driven roller.

4. The cutting machine conveyor belt circulation system according to claim 3, characterized in that: The conveyor belt further comprises a circulation section arranged opposite to the bearing section and on a side away from the cutting mechanism; the second driving roller group further comprises a third driven roller, the roller surface of the third driven roller is tangent to the back side of the circulation section.

5. The cutting machine conveyor belt circulation system according to claim 4, characterized in that: The surface of the circulation 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 circulation section.

6. The cutting machine conveyor belt circulation system according to claim 4, characterized in that: The second driving roller group also includes a fifth driven roller, which is arranged at one end of the second driving roller group close to the feed end; the diameter of the fifth driven roller is smaller than the second active roller and the second driven roller, and the roller surface of the fifth driven roller is tangent to the back side of the bearing section.

7. The cutting machine conveyor belt circulation system according to claim 6, characterized in that: The second active roller, the second driven roller, the third driven roller and the fifth driven roller are connected by a transmission belt.

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