A small industrial belt cutting machine

Abstract

The utility model provides a kind of small industrial belt cutting machine, including rack, cutting device, belt barrel fixing device and drum core rotating device.Cutting device has multiple coaxial cutting blades, is installed on mounting pedestal by cutter shaft, and is driven to move by pedestal moving mechanism.Belt barrel fixing device adopts expansion drum core, expansion air bag and flexible sleeve structure, and realizes the quick expansion of belt barrel and loosening by air valve inflation and deflation.Drum core rotating device rotates expansion drum core and belt barrel by driving motor.The cutting machine can realize multi-channel incision synchronous cutting, effectively improve cutting efficiency, simplify belt barrel fixing operation, and is suitable for efficient, low-consumption processing requirements in small industrial scene.

Description

Technical Field

[0001] This utility model relates to the field of cutting machine technology, and more specifically, to a small industrial belt cutting machine. Background Technology

[0002] In traditional small-scale industrial production scenarios, belt cutters are commonly used equipment for cutting and processing materials in barrels. Their core structure mainly includes a single-blade cutting component and a barrel-fixing component, serving various small-batch, multi-category material processing needs for a long time.

[0003] However, existing equipment suffers from two major technical defects in actual production, severely restricting processing efficiency and production adaptability. Firstly, the cutting mechanism generally adopts a single-blade design. This design only provides a single feed cutting path, requiring segment-by-segment alignment of the material during processing. Especially when dealing with excessively long materials, the material reference point must be repositioned after each cut, significantly increasing the proportion of wasted time. Secondly, the equipment's barrel-mounted material fixing component uses a "strip-shaped support insertion" structure. The barrel, as the material to be cut, needs to be fixed by inserting wooden or metal strips to expand its inner diameter. However, this method has significant drawbacks: the strip-shaped supports must be inserted one by one into the barrel before the barrel position is manually adjusted. A single person completing one barrel installation is time-consuming, laborious, and inefficient, severely restricting actual production efficiency and making it difficult to adapt to the high-efficiency, low-consumption processing requirements of small-scale industrial scenarios. Utility Model Content

[0004] This application mainly addresses the shortcomings of existing small industrial belt cutting machines, such as low single-blade cutting efficiency and laborious and time-consuming operation of fixing the belt with strip-shaped support components. In order to overcome the above-mentioned defects of the prior art, this application provides a small industrial belt cutting machine.

[0005] This application provides a small industrial belt cutting machine, comprising: The frame has a worktable on top; A cutting device includes cutting blades, a cutter shaft, a mounting base, and a base moving mechanism. The cutting blades are multiple and coaxially connected to the cutter shaft. Adjacent cutting blades are spaced apart by spacers. The cutter shaft is fixedly connected to the mounting base. The mounting base is connected to the moving end of the base moving mechanism. The base moving mechanism is mounted on a frame and is used to drive the mounting base to move on a worktable. A barrel fixing device includes an expansion drum core, an expansion air bladder, and a flexible sleeve. The expansion air bladder covers the outer peripheral wall of the expansion drum core, and the flexible sleeve is fitted onto the outer peripheral wall of the expansion air bladder to prevent the expansion air bladder from being cut. The expansion drum core has an air passage inside, one end of which is connected to the expansion air bladder, and the other end of which is connected to an air valve. The air valve is used to inflate and deflate the expansion air bladder to tighten or loosen the barrel fitted onto the flexible sleeve. The drum core rotating device includes a support base and a drive motor. The support base is fixedly installed on the worktable, and the drive motor is installed on the support base. The rotation shaft of the drive motor is coaxially connected to the expansion drum core and is used to drive the drum on the drum fixing device to rotate.

[0006] Compared with existing technologies, this application discloses a small industrial belt cutting machine with the following advantages: By setting multiple coaxially connected cutting blades spaced apart by partitions, multiple cuts can be made simultaneously without the need for segmented material positioning, significantly reducing ineffective working time and greatly improving cutting efficiency, making it suitable for multi-batch processing needs in small industrial scenarios. It adopts an expansion-type fixing structure of "expansion drum core, expansion airbag, and flexible sleeve" to replace the traditional "strip support insertion type" fixing. The belt can be quickly tightened and loosened by inflating and deflating the air valve, eliminating the need for manual insertion of support components, simplifying operation, saving effort, shortening belt installation time, and improving fixing efficiency. The drive motor rotates the belt, and in conjunction with the movable cutting device, continuous cutting of the belt material can be achieved, avoiding the problem of discontinuous cutting caused by material stagnation during the cutting process, ensuring stable cutting, and improving processing quality and efficiency.

[0007] In one possible implementation, the base moving mechanism includes a first linear driver and a second linear driver. The base of the first linear driver is mounted on the worktable. The moving output end of the first linear driver is connected to the base of the second linear driver and moves axially along the expansion drum core. The moving output end of the second linear driver is connected to the mounting base and moves radially along the expansion drum core. Compared with the prior art, by designing the base moving mechanism as "a first linear driver that moves axially along the expansion drum core and a second linear driver that moves radially along the expansion drum core," the cutting device can be precisely adjusted in two vertical directions: it can adapt to the cutting needs of drums of different lengths axially, and it can adjust the cutting depth and kerf position radially, greatly improving the position adaptability and adjustment accuracy of the cutting device, and meeting the differentiated cutting needs of multiple types of drum materials in small industrial scenarios.

[0008] In one possible implementation, the first and second linear actuators are lead screw and guide rail structures, linear slide structures, or cylinder drive structures. Compared with existing technologies, this provides a variety of mature drive structure options, which can be flexibly configured according to the processing accuracy, speed requirements, and cost budgets of small industrial users, thereby improving the practicality and market adaptability of the equipment.

[0009] In one possible implementation, a support mechanism is also included. This support mechanism comprises a support pin and a pin driver. The end of the expansion drum core furthest from the drive motor has a pin groove matching the support pin. The support pin can be inserted into and supported within the pin groove via the pin driver. Compared to existing technologies, the support pin, inserted into the pin groove of the expansion drum core via the pin driver, effectively supports the end of the expansion drum core furthest from the drive motor, preventing the expansion drum core from wobbling during rotation due to unilateral force (only the drive motor end is connected), thus ensuring the coaxiality of the drum core rotation. Reducing drum core wobbling prevents drum core offset and reduces cutting deviation; simultaneously, it reduces unilateral force on the drive motor's rotating shaft, preventing shaft deformation and extending the drive motor's service life.

[0010] In one possible implementation, the drum fixing device further includes two fixing rings, which are bolted to the outer peripheral walls at both ends of the expansion drum core to secure the drum. Compared with the prior art, the two bolted fixing rings axially limit the drum from both ends of the expansion drum core, preventing cutting deviations caused by axial displacement of the drum during cutting or rotation. This compensates for the insufficient "radial tightening" fixation of the expansion airbag, forming a dual fixation of "radial tightening and axial limiting." This prevents axial movement of the drum, ensuring the cutting position always aligns with the preset reference, reducing the scrap rate due to displacement, and adapting to the processing quality requirements of small-scale industrial scenarios.

[0011] In one possible implementation, the cutting device further includes a protective cover fixed to the mounting base and covering the outside of the cutting blade. Compared with the prior art, the protective cover covering the cutting blade can block material debris splashed during the cutting process, preventing debris from cutting the operator, and at the same time preventing the operator from accidentally touching the high-speed rotating blade, reducing the risk of safety accidents.

[0012] In one possible implementation, both the inflatable airbag and the flexible sleeve are made of elastic rubber. Compared to existing technologies, elastic rubber offers superior elasticity. During inflation, the inflatable airbag causes the flexible sleeve to expand, allowing it to conform to the inner wall of the belt sleeve. This flexible sleeve secures the belt sleeve and protects the inflatable airbag, preventing belt deformation caused by the "localized stress" of traditional strip-shaped supports. The rubber material is wear-resistant and anti-aging, capable of withstanding repeated inflation and deflation deformations, extending the service life of both the inflatable airbag and the flexible sleeve, and reducing equipment maintenance costs.

[0013] In one possible implementation, the frame is equipped with adjustable feet at the bottom to balance the level of the worktable. Compared with existing technologies, uneven floors are common in small industrial settings. The adjustable feet can quickly level the worktable through fine-tuning of the height, preventing deviations in the coaxiality of the drum rotation or a decrease in the movement accuracy of the cutting device due to table tilt.

[0014] In one possible implementation, the number of cutting blades is two or more, and the cutting blades have the same diameter. Compared with the prior art, while "multiple blades" improve efficiency, the uniform diameter further ensures the quality of batch cutting, avoiding subsequent rework due to inconsistent cuts, thus achieving a dual guarantee of "efficiency and quality". Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this application; Figure 2 This is a partial structural diagram of the cutting device; Figure 3 This is a partial cross-sectional view of the cutting device; Figure 4 This is a schematic diagram of the structure of the bucket fixing device; Figure 5 This is a cross-sectional view of the bucket fixing device; Explanation of reference numerals in the attached figures: 1. Frame; 2. Cutting device; 21. Cutting blade; 22. Cutting shaft; 23. Mounting base; 24. Base moving mechanism; 241. First linear actuator; 242. Second linear actuator; 25. Spacer; 26. Protective cover; 3. Bucket fixing device; 31. Expansion drum core; 311. Air passage; 32. Expansion air bladder; 33. Flexible sleeve; 34. Air valve; 35. Fixing ring; 4. Drum core rotating device; 41. Support base; 42. Drive motor; 5. Support mechanism; 51. Support pin; 52. Pin actuator. Detailed Implementation

[0016] First, those skilled in the art should understand that these embodiments are merely used to explain the technical principles of the embodiments of this application and are not intended to limit the scope of protection of the embodiments of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0017] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to 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 the embodiments of this application based on the specific circumstances.

[0018] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0019] The present application will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0020] See Figures 1 to 5 This application discloses a small industrial belt cutting machine, including: a frame 1, a cutting device 2, a belt barrel fixing device 3, a drum core rotating device 4, and a support mechanism 5.

[0021] The frame 1 is made of steel and has a flat work surface on top. Casters can be installed at the bottom of the frame 1 for easy relocation of the equipment.

[0022] The cutting device 2 includes cutting blades 21, a cutter shaft 22, a mounting base 23, and a base moving mechanism 24. The cutting blades 21 are three high-speed steel circular blades of the same outer diameter, coaxially mounted on the cutter shaft 22. Adjacent blades are separated by spacers 25, the thickness of which is adjusted according to the required cutting width of the drum. The cutter shaft 22 is fixedly connected to the mounting base 23, and its extension direction is parallel to the axial direction of the expansion drum core 31. The mounting base 23 is connected to the moving end of the base moving mechanism 24, which is mounted on the frame 1 and drives the mounting base 23 to move on the worktable, thus enabling the feeding and retraction of the cutting blades 21.

[0023] The barrel-mounted fixing device 3 includes an expansion drum 31, an expansion airbag 32, and a flexible sleeve 33. The expansion drum 31 is a steel cylinder with an internal air passage 311. One end of the air passage 311 connects to the expansion airbag 32, and the other end is connected to an air valve 34. The air valve 34 is detachably connected to an external air source, and its internal structure is the same as that of a conventional tire valve core. The expansion airbag 32 is made of elastic rubber and covers the outer periphery of the expansion drum 31. It expands after being inflated by the air valve 34. The flexible sleeve 33 is a wear-resistant elastic rubber sleeve that fits over the expansion airbag 32 to prevent the blade from cutting the airbag during cutting. The flexible sleeve 33 needs to be replaced after multiple uses to prevent damage to the expansion airbag 32. The barrel is fitted onto the flexible sleeve 33 and is inflated and secured.

[0024] The drum core rotating device 4 includes a support base 41 and a drive motor 42. The support base 41 is fixed to the worktable by bolts. The drive motor 42 is a variable frequency motor and is mounted on the support base 41. It is coaxially connected to the expansion drum core 31 through a coupling, driving the drum to rotate and cooperating with the cutting device 2 to achieve circumferential cutting.

[0025] In this embodiment, the base moving mechanism 24 includes a first linear actuator 241 and a second linear actuator 242. The first linear actuator 241 adopts a lead screw guide structure with a self-locking function. The lead screw is driven by a servo motor, and the base is fixed to the worktable by bolts. Its moving output end moves along the axial direction of the expansion drum core 31, driving the second linear actuator 242 to move as a whole. The second linear actuator 242 adopts a cylinder drive structure with a self-locking function. Its base is connected to the moving output end of the first linear actuator 241, and its moving output end is connected to the mounting base 23, driving the cutting blade 21 to move radially along the expansion drum core 31. Through the combination of the first linear actuator 241 and the second linear actuator 242, the cutting blade 21 can move precisely in both axial and radial degrees of freedom, adapting to the cutting needs of drums of different sizes and lengths. In other embodiments, the first linear actuator 241 and the second linear actuator 242 can adopt a linear slide structure.

[0026] In this embodiment, the support mechanism 5 includes a support pin 51 and a pin driver 52. The support pin 51 is made of hardened steel with a conical tip that has been hardened. A pin groove is formed at the center of the end of the expansion drum core 31 furthest from the drive motor 42; the groove is conical and matches the tip of the support pin 51. The pin driver 52 is a cylinder assembly with a self-locking function, fixed to the frame 1, and controls the insertion and withdrawal of the support pin 51.

[0027] In this embodiment, the drum fixing device 3 further includes two fixing rings 35. The two fixing rings 35 are fastened to the outer peripheral walls at both ends of the expansion drum core 31 by bolts. The inner diameter of the fixing rings 35 matches the outer diameter of the drum core, and is used to axially limit the drum and prevent the drum from axially slipping during cutting.

[0028] In this embodiment, the cutting device 2 also includes a protective cover 26. The protective cover 26 is fixed to the mounting base 23 by bolts and covers the outside of the cutting blade 21 to prevent chips from flying and to prevent accidents.

[0029] In this embodiment, the bottom of the frame 1 is equipped with adjustable feet. The adjustable feet include four anchor bolts with rubber pads on the bottom. The height can be adjusted by rotating the anchor bolts to compensate for uneven ground, ensure that the worktable is level, and improve cutting accuracy.

[0030] This cutting machine is driven by a control module to operate the first linear driver 241, the second linear driver 242, the drive motor 42, and the ejector pin driver 52. During operation, the tape canister is first placed over the flexible sleeve 33 of the tape canister fixing device 3. Air is then introduced into the air passage 311 of the expansion drum core 31 through the air valve 34, causing the expansion airbag 32 to inflate and expand, thus tightening the flexible sleeve 33 and the tape canister. The tape canister is then axially limited by the fixing rings 35 at both ends of the expansion drum core 31. Simultaneously, the ejector pin driver 52 pushes the supporting ejector pin 51 into the ejector pin groove of the expansion drum core 31, supporting the drum core and preventing it from shaking. Subsequently, the first linear driver 241 (along the drum core axial direction) and the second linear driver 242 (along the drum core radial direction) of the base moving mechanism 24 work together to adjust the position of the mounting base 23, aligning the cutting blade 21 with the area to be cut, and the protective cover 26 covers the blade. Finally, the drive motor 42 drives the expansion drum core 31 and the belt drum to rotate, and the cutting blade 21 performs multiple synchronous cuts on the rotating belt drum. After completion, the air is released and the belt drum is loosened.

[0031] The beneficial effects of this application include: 1. The multi-coaxial cutting blade 21 is spaced apart by the partition block 25, which can simultaneously complete multiple cuts, eliminating the step of positioning the material reference segment by segment, greatly reducing ineffective working time, improving cutting efficiency, and adapting to the needs of small industrial multi-batch processing.

[0032] Second, the expansion-type fixing structure adopts an expansion drum core 31, an air bladder and a flexible sleeve 33. The drum can be quickly tightened and loosened by inflating and deflating the air valve 34, which replaces the traditional manual insertion fixing of strip support. The operation is simple and labor-saving, shortens the installation time, and the elastic rubber sleeve can avoid cutting the air bladder.

[0033] 3. The dual linear drive base moving mechanism 24 can adjust the cutting position along the axial and radial directions of the drum core to adapt to the different cutting needs of drums of different lengths and specifications, and improve the adjustment accuracy.

[0034] IV. The support pin 51 prevents the drum core from rotating and shaking, and the fixing ring 35 axially limits the barrel, reducing cutting deviation and scrap rate. It can also reduce the stress on the drive motor shaft 42 and extend its life. The protective cover 26 prevents debris from splashing and accidentally touching the surface, and the adjustable feet ensure the table is level, further improving processing safety and quality.

[0035] In the description of the embodiments of this application, it should be noted that the terms "inner" and "outer" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings. This is only for the convenience of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of this application.

[0036] In the description of this application, the references to terms such as "an embodiment," "some embodiments," "in this embodiment," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0037] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A small industrial belt cutting machine, characterized in that, include: The frame has a worktable on top; A cutting device includes cutting blades, a cutter shaft, a mounting base, and a base moving mechanism. The cutting blades are multiple and coaxially connected to the cutter shaft. Adjacent cutting blades are spaced apart by spacers. The cutter shaft is fixedly connected to the mounting base. The mounting base is connected to the moving end of the base moving mechanism. The base moving mechanism is mounted on a frame and is used to drive the mounting base to move on a worktable. A barrel fixing device includes an expansion drum core, an expansion air bladder, and a flexible sleeve. The expansion air bladder covers the outer peripheral wall of the expansion drum core, and the flexible sleeve is fitted onto the outer peripheral wall of the expansion air bladder to prevent the expansion air bladder from being cut. The expansion drum core has an air passage inside, one end of which is connected to the expansion air bladder, and the other end of which is connected to an air valve. The air valve is used to inflate and deflate the expansion air bladder to tighten or loosen the barrel fitted onto the flexible sleeve. The drum core rotating device includes a support base and a drive motor. The support base is fixedly installed on the worktable, and the drive motor is installed on the support base. The rotation shaft of the drive motor is coaxially connected to the expansion drum core and is used to drive the drum on the drum fixing device to rotate.

2. The small industrial strip cutting machine according to claim 1, characterized in that, The base moving mechanism includes a first linear driver and a second linear driver. The base of the first linear driver is mounted on the worktable. The moving output end of the first linear driver is connected to the base of the second linear driver and moves axially along the expansion drum core. The moving output end of the second linear driver is connected to the mounting base and moves radially along the expansion drum core.

3. The small industrial strip cutting machine according to claim 2, characterized in that, The first linear driver and the second linear driver are lead screw guide structures, linear slide structures or cylinder drive structures.

4. The small industrial belt cutting machine according to claim 1, characterized in that, It also includes a support mechanism, which includes a support pin and a pin driver. The end of the expansion drum core away from the drive motor is provided with a pin groove that matches the support pin. The support pin can be inserted and supported in the pin groove by the pin driver.

5. The small industrial strip cutting machine according to claim 1, characterized in that, The barrel fixing device also includes two fixing rings, which are fixedly connected to the outer peripheral walls of both ends of the expansion drum core by bolts to secure the barrel.

6. The small industrial strip cutting machine according to claim 1, characterized in that, The cutting device also includes a protective cover, which is fixed on the mounting base and covers the outside of the cutting blade.

7. The small industrial strip cutting machine according to claim 1, characterized in that, Both the inflatable airbag and the flexible sleeve are made of elastic rubber.

8. The small industrial strip cutting machine according to claim 1, characterized in that, The bottom of the frame is equipped with adjustable feet to balance the levelness of the worktable.

9. The small industrial strip cutting machine according to claim 1, characterized in that, The number of cutting blades is two or more, and the cutting blades have the same diameter.

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