A transfer device for a cutting machine

Abstract

A kind of conveying device of cutting machine, including frame, driving shaft, driven transmission shaft and transmission belt around driving shaft and driven transmission shaft, by setting support plate for supporting upper layer belt body between upper layer belt body and lower layer belt body of transmission belt, and setting first support rod, second support rod and middle support rod between the two on frame, while making lower layer belt body from driving shaft below lead out in sequence from below around first support rod, from above across middle support rod, again from below around second support rod after entering driven transmission shaft, since support plate forms effective support to upper layer belt body, and lower layer belt body of specific winding path forms detour tensioning structure by high-position support of first and second support rod and low-position crossing of middle support rod, overall rigid support to long-distance transmission belt is realized, so that the problem of abnormal wear caused by sag of long transmission belt is effectively solved.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine equipment technology, and specifically to a conveying device for a cutting machine. Background Technology

[0002] In the field of cutting machine equipment, the conveying device, as a core component connecting material transport and cutting processing, directly affects the stability and efficiency of the cutting operation. Currently, the industry generally adopts a basic transmission architecture of "motor + sprocket + conveyor belt," where the motor drives the sprocket to rotate the conveyor belt, realizing the transport of materials from the feeding end to the cutting end. This structure has a mature principle, controllable cost, and is widely used in single-blade or short-distance cutting machines.

[0003] However, in cutting machines equipped with multiple sets of blades, the conveyor path needs to be extended to meet the requirement that materials pass through the processing areas of each blade sequentially. This results in a significant increase in the length of the transmission belt, leading to the following key problems: First, long transmission belts are prone to sagging and wear. Due to the combined effect of the belt's own weight and the material load, the existing structure lacks effective support for the middle of the belt, relying only on the two ends for drive. This causes the middle section to sag, which not only easily rubs against internal components causing scratches on the material but also accelerates conveyor belt wear and increases maintenance costs. Second, the positioning accuracy of materials is difficult to guarantee during long-distance conveying. Multi-blade cutting requires materials to always travel along a preset path during transmission. However, conventional devices rely only on the friction between the conveyor belt and the material, lacking a positioning structure. When there is vibration or uneven force, the material is prone to deviation, leading to subsequent cutting position deviations and affecting the finished product qualification rate.

[0004] To address some of the issues, existing solutions, such as the Chinese utility model patent "CNC Leather Cutting Machine" with authorization announcement number CN205062089U, propose a dual-conveyor-belt alternating operation mode. This mode improves efficiency and safety by using two independent conveyor belts in conjunction with dual cutting heads. However, this solution does not fundamentally solve the core defects in long conveyor belt scenarios: it lacks a central support structure to alleviate sagging wear and also fails to add adsorption or positioning devices to suppress material deviation. Consequently, it is difficult to meet the requirements of transmission stability and positioning accuracy for multi-tool cutting.

[0005] Therefore, in order to address the problems of sagging, wear and inaccurate positioning caused by long transmission belts in multi-tool cutting machines, it is urgent to develop a transmission structure with central support and material positioning functions based on the existing transmission devices, so as to improve the stability of the equipment and the processing accuracy. Utility Model Content

[0006] The first technical problem this invention aims to solve is to provide a conveying device for a cutting machine that can effectively address the issue of sagging and wear of long transmission belts, in light of the aforementioned technical situation.

[0007] The second technical problem to be solved by this utility model is to provide a conveying device for a cutting machine that ensures the positioning accuracy of materials, in light of the above-mentioned technical status.

[0008] The technical solution adopted by this utility model to solve the first technical problem is as follows: the conveying device of the cutting machine includes a frame, a drive shaft, a driven shaft, and a transmission belt wound around the drive shaft and the driven shaft. A support plate for supporting the upper belt is provided between the upper belt body and the lower belt body of the transmission belt.

[0009] The frame is provided with a first support rod, a second support rod, and a middle support rod located between the first support rod and the second support rod. The lower belt is led out from below the drive shaft, and then sequentially winds around the first support rod from below, crosses the middle support rod from above, and winds around the second support rod from below before returning to the driven shaft.

[0010] In order to convert the sliding friction between the first support rod, the second support rod, and the middle support rod and the lower belt into rolling friction, and reduce the wear of the belt when it passes through, preferably, the first support rod, the second support rod, and the middle support rod are all rotatably mounted on the frame.

[0011] To further enhance the central support of the long-distance lower belt and prevent it from sagging in the middle section of the span, preferably, multiple central support rods are provided, and each central support rod is spaced apart along the length of the frame.

[0012] To provide a stable installation foundation and ensure the positioning accuracy of each support rod, preferably, the two sides of the frame are provided with multiple pairs of vertical rods arranged at intervals along their length, and the two ends of the first support rod and the middle support rod are correspondingly set on the inner sidewall of each pair of vertical rods.

[0013] To achieve reliable rotational support for the support rod and simplify the assembly structure, preferably, both the first support rod and the middle support rod include a long rod and a pair of support seats, with each support seat respectively installed on the inner side wall of the corresponding vertical rod, and the long rod rotatably supported in the corresponding support seat.

[0014] In order to form a specific meandering path for the lower belt to achieve effective tension and to compensate for sagging by gravity, preferably, the installation height of the first support rod and the second support rod in the vertical direction is higher than the installation height of the middle support rod.

[0015] In order to construct a stable and reliable support platform to support the support plate and to make reasonable use of the space between the upper and lower layers of the transmission belt, preferably, the frame is provided with multiple crossbeams arranged at intervals along its length, and the support plate is fixedly installed on the crossbeams; both the crossbeams and the support plate are located between the upper belt and the lower belt, and the crossbeams are located above the first support rod, the second support rod and the middle support rod.

[0016] To enable modular installation and convenient maintenance of the support plate, and to ensure that it provides comprehensive and continuous support to the upper belt, preferably, each of the crossbeams is provided with multiple spaced fixing blocks, and the support plate is detachably installed on the fixing blocks by fasteners, with the support plate covering the entire load-bearing area of ​​the upper belt directly below.

[0017] To facilitate convenient adjustment of the transmission belt tension to adapt to different working conditions and compensate for belt elongation, preferably, the vertical rod of the frame is provided with an adjustment frame at both ends corresponding to the second support rod. The adjustment frame is provided with an adjustment groove extending along the length of the frame. Both ends of the second support rod are installed in the corresponding adjustment grooves via sliders. The sliders are provided with adjustment components for locking the second support rod in different positions of the adjustment grooves. The second support rod is rotatably mounted on the sliders.

[0018] The technical solution adopted by this utility model to solve the second technical problem is as follows: Preferably, the support plate is an adsorption plate with an internal cavity, and the upper surface of the adsorption plate is provided with a plurality of adsorption holes communicating with the cavity. The cavity is connected to a suction pipe so as to adsorb and fix the material located on the upper belt through the adsorption holes.

[0019] Compared with the prior art, the advantages of this utility model are as follows: By setting a support plate between the upper and lower belt bodies of the transmission belt, and setting a first support rod, a second support rod, and a middle support rod located between the two on the frame, the lower belt body is led out from below the drive shaft and sequentially passes around the first support rod from below, crosses the middle support rod from above, and then passes around the second support rod from below before entering the driven shaft. Since the support plate effectively supports the upper belt body, it prevents it from sagging due to its own weight and material load. The lower belt body with a specific winding path forms a meandering tension structure through the high support of the first and second support rods and the low crossing of the middle support rod, which together achieves overall rigid support for the long-distance transmission belt. This effectively solves the problems of abnormal wear, material scratches, and high maintenance costs caused by sagging of long transmission belts, further disperses the overall stress of the long transmission belt, improves the running stability of the transmission belt, and ensures the operational reliability of the multi-tool cutting machine during long-distance conveying. Attached Figure Description

[0020] Figure 1This is a three-dimensional structural diagram of this embodiment;

[0021] Figure 2 This is a schematic diagram of the decomposed state structure of this embodiment;

[0022] Figure 3 for Figure 2 Enlarged schematic diagram of part A;

[0023] Figure 4 This is a three-dimensional structural diagram of the embodiment after the transmission belt has been removed;

[0024] Figure 5 This is a cross-sectional structural diagram of this embodiment;

[0025] Figure 6 This is a three-dimensional structural diagram of the first support rod in this embodiment. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Figures 1-6 The figure shown is the preferred embodiment of this utility model.

[0028] The conveying device of the cutting machine in this embodiment mainly includes a frame 1, a drive shaft 2, a driven shaft 3, a transmission belt 4, a support plate 5, a first support rod 6, a second support rod 7, and a middle support rod 8. It also includes vertical rods 1a, horizontal beams 1b, support seats 6b, fixing blocks 1b1, adjusting frames 1a1, sliders 1a2, adjusting components 1a3, adjusting grooves 1a4, and components such as cavities 5a, adsorption holes 5b, and suction pipes 5c attached to the support plate 5. Through the dual structure of "upper belt support + lower belt meandering support", it effectively solves the problem of long transmission belt sagging and wear in the prior art. At the same time, it relies on negative pressure adsorption design to solve the problem of inaccurate material positioning, and achieves simultaneous improvement in transmission stability and positioning accuracy.

[0029] The structure and connection relationship of each component in this embodiment are as follows:

[0030] Rack 1: Reference Figure 1 and Figure 2As shown, the frame 1 serves as the supporting foundation for the entire device. It is made of high-strength metal and has an overall frame structure, providing an installation reference for components such as the drive shaft 2, driven shaft 3, support rod assembly, and support plate 5. Multiple pairs of vertical rods 1a are provided on each of the two sides of the frame 1. Each pair of vertical rods 1a is spaced apart along the length of the frame 1, and each pair of vertical rods 1a is relatively distributed. The inner sidewalls of the vertical rods 1a have reserved installation structures for fixing the first support rod 6 and the middle support rod 8. Multiple crossbeams 1b are provided in the middle area of ​​the frame 1. The crossbeams 1b are spaced apart along the length of the frame 1, forming a stable three-dimensional support frame with the vertical rods 1a. Fixing blocks 1b1 are provided on the crossbeams 1b to provide an installation carrier for the support plate 5.

[0031] Driven drive shaft 2 and driven drive shaft 3: Reference Figure 1 and Figure 5 As shown, the active drive shaft 2 and the driven drive shaft 3 are structurally compatible and both are made of wear-resistant metal material. Their axes are parallel and installed at the same height, and they are respectively mounted at both ends of the frame 1 via bearing assemblies. The active drive shaft 2 is used to receive external power (such as the output power of a motor) and drives the transmission belt 4 to rotate through friction. The driven drive shaft 3 cooperates with the active drive shaft 2 to realize the winding and support of the transmission belt 4, and rotates synchronously with the transmission belt 4 to ensure the smooth operation of the transmission belt 4.

[0032] Transmission belt 4: Reference Figure 1 , Figure 2 and Figure 5 As shown, the transmission belt 4 is wound around the drive shaft 2 and the driven shaft 3, naturally dividing it into an upper belt body 4a and a lower belt body 4b. The upper belt body 4a is the material-bearing area, used to place the material to be cut; the lower belt body 4b is used in conjunction with the first support rod 6, the second support rod 7 and the middle support rod 8 to achieve tension adjustment and middle support of the transmission belt 4, preventing the long transmission belt from sagging due to lack of support.

[0033] Support plate 5: Reference Figure 2 , Figure 4 and Figure 5 As shown, the upper belt body 4a and lower belt body 4b of the transmission belt 4 are fixedly mounted on the fixing block 1b1 of the crossbeam 1b, and are detachably connected by fasteners for easy maintenance or replacement. The support plate 5 is an adsorption plate structure with an internal cavity 5a. Multiple adsorption holes 5b communicating with the cavity 5a are opened on the upper surface of the plate. The cavity 5a is also connected to a suction pipe 5c. The suction pipe 5c can be connected to an external negative pressure air source device to create a negative pressure inside the cavity 5a. This negative pressure, through the adsorption holes 5b, generates an adsorption force on the material on the upper belt body 4a, achieving material positioning. Simultaneously, the support plate 5 covers the entire bearing area of ​​the upper belt body 4a directly below, ensuring comprehensive support and preventing the upper belt body 4a from sagging due to the load.

[0034] First support rod 6, second support rod 7, and middle support rod 8: (Reference) Figure 2 , Figure 5 and Figure 6 As shown, the three components together constitute the support system of the lower belt 4b. The first support rod 6 and the middle support rod 8 have the same structure, both including a long rod 6a and a pair of support seats 6b. The support seats 6b are installed on the inner wall of the corresponding vertical rod 1a, and the long rod 6a is rotatably supported in the support seats 6b, allowing the long rod 6a to rotate synchronously with the operation of the lower belt 4b, reducing frictional loss between them. Multiple middle support rods 8 are provided, spaced apart along the length of the frame 1, ensuring complete support coverage of the lower belt 4b. (Reference) Figure 3 As shown, the two ends of the second support rod 7 are rotatably connected to the slider 1a2. The slider 1a2 is movably installed in the adjustment groove 1a4 of the adjustment frame 1a1. The adjustment frame 1a1 is fixed to the frame 1 as a whole, and the adjustment groove 1a4 extends along the length of the frame 1. The slider 1a2 is provided with an adjustment component 1a3, which can lock the position of the slider 1a2 in the adjustment groove 1a4, thereby adjusting the position of the second support rod 7 to adjust the tension of the transmission belt 4. In addition, the installation height of the first support rod 6 and the second support rod 7 in the vertical direction is higher than that of the middle support rod 8, so that the lower belt 4b forms a "down-up-down" meandering path when it passes through, effectively dispersing the stress in the middle of the transmission belt 4.

[0035] Auxiliary coordination between horizontal beam 1b and vertical rod 1a: (Refer to...) Figure 2 and Figure 5 As shown, the crossbeam 1b is located above the first support rod 6, the second support rod 7, and the middle support rod 8, and together with the support plate 5, it is situated between the upper belt 4a and the lower belt 4b. This provides a stable installation foundation for the support plate 5 and avoids interference with the lower belt 4b and the support rod assembly. An adjustment frame 1a1 is also provided on the frame 1 at the position corresponding to the second support rod 7. The adjustment groove 1a4 of the adjustment frame 1a1 provides guidance for the position adjustment of the second support rod 7, ensuring that the adjustment process is stable and controllable.

[0036] The working principle of the conveying device of the cutting machine in this embodiment is explained as follows:

[0037] 1. Transmission and Support Process: External power drives the active drive shaft 2 to rotate. The active drive shaft 2 drives the transmission belt 4 to rotate through friction. The transmission belt 4 drives the driven drive shaft 3 to rotate synchronously, realizing the conveying of materials from the feeding end to the cutting end. During this process, the upper belt body 4a, supported by the support plate 5, avoids sagging in the middle due to its own weight and material load, preventing friction with the internal components of the frame 1. The lower belt body 4b, through its roundabout contact with the first support rod 6, multiple middle support rods 8, and the second support rod 7, disperses the overall tension of the transmission belt 4, and the rotatable design of each support rod reduces wear on the transmission belt 4. If the transmission belt 4 becomes loose after long-term use, the adjusting component 1a3 can be loosened, pushing the slider 1a2 to move the second support rod 7 along the adjusting groove 1a4. After adjusting the tension of the transmission belt 4 to a moderate level, the adjusting component 1a3 is tightened to lock the position to ensure stable transmission.

[0038] 2. Material positioning process: When the material is placed on the upper belt 4a, the external negative pressure device introduces negative pressure into the cavity 5a of the support plate 5 through the suction pipe 5c. The negative pressure in the cavity 5a acts on the material on the upper belt 4a through the adsorption hole 5b, tightly adsorbing and fixing the material, avoiding material deviation caused by vibration and uneven force during long-distance transportation, ensuring accurate cutting position when the material passes through each cutter in sequence, and solving the problem of inaccurate material positioning affecting the finished product qualification rate in the existing technology.

[0039] It should be noted that in the description of this embodiment, the terms "upper," "lower," "left," "right," "front," and "rear," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used merely for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. The terms "installation," "connection," and "fixing" should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A conveying device for a cutting machine, comprising a frame (1), a drive shaft (2), a driven shaft (3), and a transmission belt (4) wound around the drive shaft (2) and the driven shaft (3), characterized in that: A support plate (5) for supporting the upper belt (4a) is provided between the upper belt body (4a) and the lower belt body (4b) of the transmission belt (4); The frame (1) is provided with a first support rod (6), a second support rod (7), and a middle support rod (8) located between the first support rod (6) and the second support rod (7). The lower belt (4b) is led out from below the drive shaft (2), and then passes around the first support rod (6) from below, crosses the middle support rod (8) from above, and passes around the second support rod (7) from below before returning to the driven shaft (3).

2. The conveying device of the cutting machine according to claim 1, characterized in that: The first support rod (6), the second support rod (7) and the middle support rod (8) are all rotatably mounted on the frame (1).

3. The conveying device of the cutting machine according to claim 2, characterized in that: The central support rod (8) is provided with multiple rods, and each central support rod (8) is spaced apart along the length direction of the frame (1).

4. The conveying device of the cutting machine according to claim 2, characterized in that: The frame (1) has multiple pairs of vertical rods (1a) arranged at intervals along its length on its two sides, and the two ends of the first support rod (6) and the middle support rod (8) are respectively set on the inner side wall of each pair of vertical rods (1a).

5. The conveying device of the cutting machine according to claim 4, characterized in that: The first support rod (6) and the middle support rod (8) each include a long rod (6a) and a pair of support seats (6b). Each support seat (6b) is installed on the inner side wall of the corresponding vertical rod (1a). The long rod (6a) is rotatably supported in the corresponding support seat (6b).

6. The conveying device of the cutting machine according to claim 1, characterized in that: The installation height of the first support rod (6) and the second support rod (7) in the vertical direction is higher than the installation height of the middle support rod (8).

7. The conveying device of the cutting machine according to claim 1, characterized in that: The frame (1) is provided with a plurality of crossbeams (1b) arranged at intervals along its length, and the support plate (5) is fixedly installed on the crossbeams (1b); The crossbeam (1b) and the support plate (5) are both located between the upper belt (4a) and the lower belt (4b), and the crossbeam (1b) is located above the first support rod (6), the second support rod (7) and the middle support rod (8).

8. The conveying device of the cutting machine according to claim 7, characterized in that: Each of the crossbeams (1b) is provided with a plurality of spaced fixing blocks (1b1), and the support plate (5) is detachably installed on the fixing block (1b1) by fasteners. The support plate (5) covers the entire load-bearing area of ​​the upper belt (4a) directly below.

9. The conveying device of the cutting machine according to claim 4, characterized in that: An adjustment frame (1a1) is provided on the vertical rod (1a) of the frame (1) at both ends corresponding to the second support rod (7). The adjustment frame (1a1) is provided with an adjustment groove (1a4) extending along the length of the frame (1). The two ends of the second support rod (7) are installed in the corresponding adjustment groove (1a4) by a slider (1a2). The slider (1a2) is provided with an adjustment element (1a3) for locking the second support rod (7) in different positions of the adjustment groove (1a4). The second support rod (7) is rotatably mounted on the slider (1a2).

10. The conveying device of the cutting machine according to any one of claims 1 to 9, characterized in that: The support plate (5) is an adsorption plate with an internal cavity (5a). The upper surface of the adsorption plate is provided with a plurality of adsorption holes (5b) communicating with the cavity (5a). The cavity (5a) is connected to an air suction pipe (5c).

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