Double-blade spiral slicing equipment with double-motor direct connection structure and method

Abstract

The invention discloses double-cutter spiral slicing equipment with a double-motor direct connection structure and a method, and relates to the technical field of double-cutter spiral slicing equipment.The equipment comprises a rack, a lower cutter and an upper cutter are arranged on the rack, the lower cutter is driven by a first servo motor, the upper cutter is driven by a second servo motor, the lower cutter comprises a cutter roller, and the cutter roller is arranged on the rack. The disc-arc-shaped sliding groove adjusting mechanism is arranged in the hollow cutter roller, two sets of movable blade assemblies are symmetrically arranged on the cutter roller, an adjusting assembly used for adjusting the extending length of the movable blade assemblies is arranged in the cutter roller, and the structure of the upper cutter is consistent with that of the lower cutter. Stepless adjustment of the extending lengths of all the blades can be completed at a time only by loosening the third fastening bolt and pulling the driving arm rod, and accurate adjustment of the gap between the upper cutter and the lower cutter is achieved.

Description

Technical Field

[0001] This invention relates to the field of double-blade spiral slicing equipment technology, specifically to a double-blade spiral slicing equipment and method with a dual-motor direct-drive structure. Background Technology

[0002] In continuous production lines for roll materials such as paper, film, and aluminum foil, spiral slitting machines have become core equipment in high-speed longitudinal slitting processes due to their advantages such as smooth cuts, chip-free operation, and online speed adjustment. Traditional double-spiral slitting machines generally use a single motor-belt / gear long-shaft drive system to synchronously distribute power to the upper and lower solid blade rollers. While this structure is simple and low-cost, it has revealed the following prominent problems in actual operation: 1. High inertia and energy consumption of the cutter roller: Solid alloy steel cutter rollers typically weigh 50–120 kg, resulting in enormous rotational inertia during high-speed start-up and shutdown. To complete acceleration or emergency braking within 0.5 seconds, a servo motor with a power of 30 kW or even higher is required, along with an increased frame cross-section to ensure torsional rigidity.

[0003] 2. Increased temperature and short lifespan: Under high-speed dry cutting conditions, the solid cutter roller has a small heat dissipation area. When the surface linear velocity reaches 35 m / s, the temperature rise at the tip can exceed 180℃, the coating hardness drops sharply, and the lifespan is shortened from the designed 120 h to less than 60 h. Frequent machine stops for tool replacement further reduce the overall efficiency of the production line.

[0004] 3. Traditional solutions typically fix the blades on the cutter roller, and the blade distance is determined once by the roller pitch, making it inconvenient to fine-tune the distance between the upper and lower blades according to processing needs.

[0005] Based on this, a dual-blade spiral slicing device and method with a dual-motor direct-drive structure is now provided, which can eliminate the drawbacks of existing devices. Summary of the Invention

[0006] The purpose of this invention is to provide a dual-blade spiral slicing device and method with a dual-motor direct-drive structure to solve the problems in the prior art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: A dual-blade spiral slicing device with a dual-motor direct-drive structure includes a frame on which a lower cutter and an upper cutter are mounted. The lower cutter is driven by a first servo motor, and the upper cutter is driven by a second servo motor. The lower cutter includes a cutter roller with two sets of movable blade assemblies symmetrically arranged on it. The cutter roller contains an adjustment component for adjusting the extension length of the movable blade assemblies. The upper cutter has the same structure as the lower cutter.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions: In one alternative embodiment: the frame includes a base, a frame body is provided on the base, two mounting brackets are symmetrically provided on both sides of the frame body, the mounting brackets are provided with mounting holes for mounting a lower cutter and an upper cutter, and two conveyor tables are symmetrically provided on both sides of the frame body.

[0009] In one alternative: the cutter roller has rotating shafts at both ends that are rotatably mounted on the frame, and two symmetrical cutter grooves for mounting movable blade assemblies are provided on the cutter roller. A second sliding groove is provided in the cutter groove, and a third sliding groove is connected in the second sliding groove. Multiple circular grooves are distributed axially inside the cutter roller, and a through-hole is provided at the center of the circular groove.

[0010] In one alternative: a second fastening bolt for fixing the movable blade assembly is provided on one side of the blade groove, and a groove is provided at one end of the rotating shaft, with multiple positioning holes distributed around the inner circumference of the groove.

[0011] In one alternative embodiment: the cutter roller has a plurality of oblique micro-holes distributed along the axial direction, the oblique micro-holes are disposed on one side of the cutter groove, one end of the oblique micro-holes is connected to the cutter groove, and the other end is disposed on the surface of the cutter roller on one side of the cutter groove.

[0012] In one alternative embodiment: the movable blade assembly includes a blade slidably mounted in a second slide groove, one end of the blade is provided with a blade holder, the blade holder is slidably disposed in a third slide groove, the blade holder has multiple slots distributed along the axial direction of the cutter roller, a fixing rod is provided at the cutter roller, multiple strip grooves are distributed on the blade along the axial direction of the cutter roller, the strip grooves are located in the middle of two adjacent slots, and a first elastic rubber pad and a second elastic rubber pad are respectively provided between the upper and lower parts of the blade holder and the inner wall of the second slide groove.

[0013] In one alternative: the adjusting assembly includes a disc rotatably mounted in a circular groove, the discs being fixedly connected by a connecting rod, two arc-shaped grooves symmetrically provided on the discs, the arc-shaped grooves being fitted onto a fixed rod, one end of the connecting rod passing through the cutter roller and being fixedly connected to a drive arm rod provided in the groove, the drive arm rod being provided with a third fastening bolt matching the positioning hole.

[0014] In one alternative: the lower cutter and the upper cutter are staggered vertically, with one end of the upper cutter tilted upward by 1° and one end of the lower cutter tilted downward by 1°.

[0015] The present invention also provides an operating method for the dual-blade spiral slicing device with a dual-motor direct-drive structure described above, comprising the following steps: S1: Adjust the extension length of the movable blade assembly on the upper and lower cutters by adjusting the adjustment component, further fine-tune the gap between the blades on the upper and lower cutters. After adjustment, fix the blades with the second fastening bolt and fix the adjustment component with the third fastening bolt. S2: Simultaneously start the first servo motor and the second servo motor to drive the upper cutter and the lower cutter to rotate. Adjust the speed of the first servo motor and the second servo motor through the control system connected to the first servo motor and the second servo motor so that the blades on the upper cutter and the lower cutter are aligned one by one.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. This invention eliminates the traditional long belt / gear transmission chain by directly driving the upper and lower cutters with independent servo motors, thus avoiding transmission errors and achieving synchronous / differential control of the upper and lower cutters, thereby improving slicing accuracy.

[0017] 2. This invention provides a synchronously rotating disc-arc groove adjustment mechanism inside the hollow cutter roller. By simply loosening the third fastening bolt and moving the drive arm, the stepless adjustment of the extension length of all blades can be completed at once, thereby achieving precise adjustment of the gap between the upper and lower cutters.

[0018] 3. By designing a hollow cutter roller and incorporating an axial circular groove within it, this invention effectively reduces the weight of the cutter roller, thereby lowering the power requirements of the servo motor and achieving the dual goals of lightweighting and energy conservation.

[0019] 4. This invention creates a self-pumping effect by setting oblique micro-holes on the surface of the cutter roller that communicate with the cutter groove. When rotating at high speed, it continuously guides external cold air to the cutter tip, which can effectively reduce the temperature of the cutter tip and improve the service life of the blade. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of one side of Embodiment 1 of the present invention.

[0021] Figure 2 This is a schematic diagram of the structure on the other side of Embodiment 1 of the present invention.

[0022] Figure 3 This is a schematic diagram of the frame structure in Example 1.

[0023] Figure 4 This is a schematic diagram of the cutter roller in Example 1.

[0024] Figure 5 This is a schematic diagram of the movable blade assembly in Example 1.

[0025] Figure 6 This is a schematic diagram of the adjustment component in Example 1.

[0026] Figure 7 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0027] Figure 8 This is a schematic diagram of the arrangement of the lower and upper cutters in Example 2.

[0028] Figure reference numerals: 100, frame; 101, base; 102, frame body; 103, mounting bracket; 104, mounting hole; 105, conveyor table; 200, lower cutter; 201, cutter roller; 202, rotating shaft; 203, cutter groove; 204, circular groove; 205, connecting hole; 206, second slide groove; 207, third slide groove; 208, second fastening bolt; 209, oblique micro-hole; 210, groove; 211, positioning hole; 3 00. Upper cutter; 400. First servo motor; 500. Second servo motor; 600. Movable blade assembly; 601. Blade; 602. Blade holder; 603. Groove; 604. Fixing rod; 605. Strip groove; 606. First elastic pad; 607. Second elastic pad; 700. Adjustment assembly; 701. Disc; 702. Connecting rod; 703. Arc-shaped slide; 704. Drive arm; 705. Third fastening bolt. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] Example 1 In one embodiment, such as Figures 1-4 As shown, the device includes a frame 100, on which a lower cutter 200 and an upper cutter 300 are mounted. The lower cutter 200 is driven by a first servo motor 400, and the upper cutter 300 is driven by a second servo motor 500. The lower cutter 200 includes a cutter roller 201, on which two sets of movable blade assemblies 600 are symmetrically arranged. An adjustment component 700 for adjusting the extension length of the movable blade assemblies 600 is provided inside the cutter roller 201. The upper cutter 300 has the same structure as the lower cutter 200. In use, the upper cutter 300 and the upper cutter 200 are adjusted by the adjustment component 700. The extension length of the movable blade assembly 600 on the lower cutter 200 is determined, and then the upper cutter 300 and the lower cutter 200 are driven to rotate by the first servo motor 400 and the second servo motor 500. The rotation speed of the first servo motor 400 and the second servo motor 500 is adjusted by the control system connected to the first servo motor 400 and the second servo motor 500 to align the movable blade assembly 600 on the upper cutter 300 and the lower cutter 200. The control system controls the servo motors to synchronize or differentially to achieve blade axis alignment. This is the prior art in this field.

[0031] In one embodiment, such as Figures 3-6 As shown, the frame 100 includes a base 101, a frame 102 on the base 101, two mounting brackets 103 symmetrically arranged on both sides of the frame 102, mounting brackets 103 having mounting holes 104 for mounting the lower cutter 200 and the upper cutter 300, two conveyor tables 105 symmetrically arranged on both sides of the frame 102, a rotating shaft 202 rotatably mounted on the frame 100 at both ends of the cutter roller 201, two symmetrically arranged cutter grooves 203 for mounting the movable blade assembly 600 on the cutter roller 201, a second sliding groove 206 provided in the cutter groove 203, a third sliding groove 207 connected in the second sliding groove 206, and axially distributed within the cutter roller 201. Multiple circular grooves 204 are provided, with a through-hole 205 at the center of each groove 204. A second fastening bolt 208 for fixing the movable blade assembly 600 is provided on one side of the blade groove 203. A groove 210 is provided at one end of the rotating shaft 202, with multiple positioning holes 211 distributed around the inner circumference of the groove 210. In use, the extension length of the movable blade assembly 600 on the upper cutter 300 and lower cutter 200 is adjusted by adjusting the component 700, and the position of the movable blade assembly 600 is fixed by the second fastening bolt 208. Then, the product is placed on the conveyor table 105, and the product is cut synchronously by the upper cutter 300 and lower cutter 200.

[0032] In one embodiment, such as Figure 5 As shown, the cutter roller 201 has a number of oblique micro-holes 209 distributed along the axial direction. The oblique micro-holes 209 are arranged on one side of the cutter groove 203. One end of the oblique micro-hole 209 is connected to the cutter groove 203, and the other end is located on the surface of the cutter roller 201 on one side of the cutter groove 203. Through the oblique micro-holes 209, the cutter roller 201 forms a self-pumping effect when rotating at high speed, which continuously guides external cold air to the movable blade assembly 600, thereby achieving the effect of cooling the movable blade assembly 600.

[0033] In one embodiment, such as Figure 5 and Figure 6As shown, the movable blade assembly 600 includes a blade 601 slidably mounted in the second slide groove 206. One end of the blade 601 is provided with a blade holder 602, which is slidably mounted in the third slide groove 207. The blade holder 602 has multiple slots 603 distributed along the axial direction of the cutter roller 201. A fixing rod 604 is provided at the cutter roller 201. Multiple strip-shaped grooves 605 are distributed on the blade 601 along the axial direction of the cutter roller 201. The strip-shaped grooves 605 are located in the middle of two adjacent slots 603. A first elastic pad 606 and a second elastic pad 607 are respectively provided between the blade holder 602 and the inner wall of the second slide groove 206. The adjusting assembly 700 includes a disc 701 rotatably mounted in the circular groove 204. The discs 701 are fixedly connected by a connecting rod 702. Two symmetrical arc-shaped grooves 703 are provided, which are sleeved on the fixed rod 604. One end of the connecting rod 702 passes through the cutter roller 201 and is fixedly connected to the drive arm 704 set in the groove 210. The drive arm 704 is provided with a third fastening bolt 705 that matches the positioning hole 211. In use, by rotating the drive arm 704, the disc 701 is driven to rotate, and the blade 601 is driven to slide along the second groove 206 through the arc-shaped groove 703, thereby adjusting the extension length of the blade 601. Then, the third fastening bolt 705 is tightened to fix the drive arm 704, and then the second fastening bolt 208 is tightened to fix the blade 601. The stability of the tool holder 602 during processing can be improved by the first elastic rubber pad 606 and the second elastic rubber pad 607.

[0034] Working principle: The extension length of the movable blade assembly 600 on the upper cutter 300 and the lower cutter 200 is adjusted by adjusting component 700, and the gap between the blades 601 on the upper cutter 300 and the lower cutter 200 is further fine-tuned. After the adjustment is completed, the blades 601 are fixed by the second fastening bolt 208, and the adjusting component 700 is fixed by the third fastening bolt 705. Simultaneously, the first servo motor 400 and the second servo motor 500 are started to drive the upper cutter 300 and the lower cutter 200 to rotate. The speed of the first servo motor 400 and the second servo motor 500 is adjusted by the control system connected to the first servo motor 400 and the second servo motor 500 so that the blades 601 on the upper cutter 300 and the lower cutter 200 are aligned. After the adjustment is completed, the product is passed through the lower cutter 200 and the upper cutter 300 at a constant speed along the conveyor table 105. The lower cutter 200 and the upper cutter 300 are used to synchronously complete the cutting of the product.

[0035] Example 2 The difference from Example 1 is that, as Figure 7 and Figure 8As shown, the lower cutter 200 and the upper cutter 300 are staggered vertically. One end of the upper cutter 300 is tilted upward by 1°, and the lower cutter 200 is tilted downward by 1°, forming a scissor-like arrangement structure to cut the product.

[0036] 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 dual-blade spiral slicing device with a dual-motor direct-drive structure, comprising a frame (100), wherein a lower cutter (200) and an upper cutter (300) are provided on the frame (100), characterized in that, The lower cutter (200) is driven by a first servo motor (400), and the upper cutter (300) is driven by a second servo motor (500). The lower cutter (200) includes a cutter roller (201), on which two sets of movable blade assemblies (600) are symmetrically arranged. The cutter roller (201) is provided with an adjustment component (700) for adjusting the extension length of the movable blade assembly (600). The structure of the upper cutter (300) is the same as that of the lower cutter (200).

2. The dual-blade spiral slicing device with a dual-motor direct-drive structure according to claim 1, characterized in that, The frame (100) includes a base (101), a frame (102) is provided on the base (101), two mounting brackets (103) are symmetrically provided on both sides of the frame (102), the mounting brackets (103) are provided with mounting holes (104) for mounting the lower cutter (200) and the upper cutter (300), and two conveyor tables (105) are symmetrically provided on both sides of the frame (102).

3. The dual-blade spiral slicing device with a dual-motor direct-drive structure according to claim 1, characterized in that, The cutter roller (201) has rotating shafts (202) at both ends that are rotatably mounted on the frame (100). The cutter roller (201) has two symmetrical cutter grooves (203) for mounting the movable blade assembly (600). The cutter groove (203) has a second sliding groove (206) inside. The second sliding groove (206) is connected to a third sliding groove (207). The cutter roller (201) has multiple circular grooves (204) distributed along the axial direction. The circular groove (204) has a through-hole (205) at the center.

4. The dual-blade spiral slicing device with a dual-motor direct-drive structure according to claim 3, characterized in that, The blade groove (203) has a second fastening bolt (208) on one side for fixing the movable blade assembly (600), and the rotating shaft (202) has a groove (210) at one end, with multiple positioning holes (211) distributed around the inner circumference of the groove (210).

5. The dual-blade spiral slicing device with a dual-motor direct-drive structure according to claim 3, characterized in that, The cutter roller (201) has a plurality of oblique micro-holes (209) distributed along the axial direction. The oblique micro-holes (209) are disposed on one side of the cutter groove (203). One end of the oblique micro-hole (209) is connected to the cutter groove (203), and the other end is disposed on the surface of the cutter roller (201) on one side of the cutter groove (203).

6. The dual-blade spiral slicing device with a dual-motor direct-drive structure according to claim 1, characterized in that, The movable blade assembly (600) includes a blade (601) slidably mounted in a second slide groove (206). One end of the blade (601) is provided with a blade holder (602). The blade holder (602) is slidably mounted in a third slide groove (207). The blade holder (602) has multiple slots (603) distributed along the axial direction of the cutter roller (201). A fixing rod (604) is provided at the cutter roller (201). Multiple strip grooves (605) are distributed along the axial direction of the cutter roller (201) on the blade (601). The strip grooves (605) are located in the middle of two adjacent slots (603). A first elastic pad (606) and a second elastic pad (607) are respectively provided between the blade holder (602) and the inner wall of the second slide groove (206).

7. The dual-blade spiral slicing device with a dual-motor direct-drive structure according to claim 1, characterized in that, The adjustment assembly (700) includes a disc (701) rotatably mounted in a circular groove (204). The discs (701) are fixedly connected by a connecting rod (702). Two arc-shaped grooves (703) are symmetrically provided on the discs (701). The arc-shaped grooves (703) are sleeved on the fixed rod (604). One end of the connecting rod (702) passes through the cutter roller (201) and is fixedly connected to the drive arm (704) provided in the groove (210). The drive arm (704) is provided with a third fastening bolt (705) that matches the positioning hole (211).

8. The dual-blade spiral slicing device with a dual-motor direct-drive structure according to claim 1, characterized in that, The lower cutter (200) and the upper cutter (300) are staggered vertically, with one end of the upper cutter (300) tilted upward by 1° and the lower cutter (200) tilted downward by 1°.

9. A method for operating a dual-blade spiral slicing device with a dual-motor direct-drive structure according to any one of claims 1-8, characterized in that, Includes the following steps: S1: Adjust the extension length of the movable blade assembly (600) on the upper cutter (300) and lower cutter (200) by adjusting the assembly (700), further fine-tune the gap between the blades (601) on the upper cutter (300) and lower cutter (200), and after the adjustment is completed, fix the blade (601) by the second fastening bolt (208) and fix the adjusting assembly (700) by the third fastening bolt (705); S2: Simultaneously start the first servo motor (400) and the second servo motor (500) to drive the upper cutter (300) and the lower cutter (200) to rotate. Adjust the speed of the first servo motor (400) and the second servo motor (500) through the control system connected to the first servo motor (400) and the second servo motor (500) so that the blades (601) on the upper cutter (300) and the lower cutter (200) are aligned one by one.

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