Automatic sawing and packing machine for rubber raw material treatment

Abstract

The invention discloses an automatic sawing and packing machine for rubber raw material treatment, which comprises a fixed table, a main cutter head, an opening mechanism, a movable table and a first motor, a V-shaped stop block is arranged on the fixed table, the movable table is slidably connected to the fixed table, the main cutter head, the opening mechanism and the first motor are arranged on the movable table, and the first motor is arranged on the fixed table. A cutting edge is arranged on the edge of the main cutter head, the main cutter head is aligned to the protruding position of the V-shaped check block, the first motor drives the main cutter head to rotate, the opening mechanism comprises a friction block and an elastic telescopic rod, one end of the elastic telescopic rod is hinged to the movable table, and the other end of the elastic telescopic rod is hinged to the friction block; when the main cutter head saws off the rubber raw material bag, the moving table moves forwards, and the rubber raw material bag on the two sides of a saw seam is broken off outwards through the friction blocks. According to the automatic sawing and packaging machine for rubber raw material treatment, saw dust is reduced.

Description

Technical Field

[0001] This invention relates to the field of rubber raw material sawing technology, and in particular to an automatic sawing machine for processing rubber raw materials. Background Technology

[0002] Waste rubber products (such as used tires and rubber seals) are processed using physical, chemical, or biological methods to remove impurities and reprocess into reusable rubber materials, thus achieving the recycling of rubber resources. In the production process of recycled rubber, rubber bales need to be cut to reduce their volume before being fed into subsequent processing equipment. Existing automatic bale sawing machines use saw blades to cut the bales. While the saw blades can cut the rubber bales, they generate sawdust during the cutting process. This sawdust is blown up in the factory area, polluting the air and wasting some of the rubber material. Summary of the Invention

[0003] In view of the above-mentioned prior art, the present invention provides an automatic sawing machine for processing rubber raw materials, which reduces the generation of sawdust and thus solves the above-mentioned technical problems.

[0004] To achieve the above objectives, the technical solution of this invention is implemented as follows:

[0005] An automatic rubber raw material sawing machine includes a fixed platform, a main cutter head, a spreading mechanism, a moving platform, and a first motor. A V-shaped stop is provided on the fixed platform. The moving platform is slidably connected to the fixed platform and has the main cutter head, spreading mechanism, and first motor mounted on it. The edge of the main cutter head has a cutting edge, and the main cutter head is aligned with the protrusion of the V-shaped stop. The first motor drives the main cutter head to rotate. The spreading mechanism includes a friction block and an elastic telescopic rod. One end of the elastic telescopic rod is hinged to the moving platform, and the other end is hinged to the friction block. When the main cutter head cuts open the rubber raw material package, the moving platform moves forward and, through the friction block, pries the rubber raw material packages on both sides of the saw kerf outwards.

[0006] Furthermore, the elastic telescopic rod includes a sleeve, a sliding rod, a first spring, a second spring, a front connector, and a rear connector. The front connector is provided at the front end of the sliding rod, and the sliding rod is slidably connected to the sleeve. The sleeve is provided with the first spring that pushes the sliding rod forward. The rear connector is provided at the rear end of the sleeve, and the rear connector is rotatably connected to the moving platform. The middle part of the sleeve is connected to the moving platform through the second spring.

[0007] Furthermore, a second motor is provided on the fixed platform, a second helical rod is rotatably connected to the fixed platform, and a threaded cylinder that mates with the shaft of the second helical rod is provided on the movable platform. The second motor is used to drive the second helical rod to rotate.

[0008] Furthermore, the V-shaped stop, the moving platform, and the fixed platform are all provided with clearance slots, which are aligned with the main cutter head.

[0009] Furthermore, the output shaft of the first motor is provided with a first synchronous pulley, and the main cutter disc is provided with a second synchronous pulley. The first synchronous pulley and the second synchronous pulley are connected by a synchronous belt drive.

[0010] Furthermore, the main cutter disc includes a first circular portion, a second circular portion, and a transition portion. The diameter of the first circular portion is smaller than the diameter of the second circular portion. The first circular portion and the second circular portion transition through the transition portion, which is an inclined surface. The edges of the first circular portion, the transition portion, and the second circular portion are all provided with the cutting edge. When the first circular portion of the main cutter disc rotates to the rubber raw material package, the moving table moves forward a distance H1. The distance H1 is equal to 1.1 to 1.5 times the radius difference between the first circular portion and the second circular portion.

[0011] Furthermore, both the first and second motors are servo motors, and both motors are connected to the controller via signals.

[0012] Furthermore, the fixed platform is provided with a second helical rod and a second motor. The second helical rod is rotatably connected to the fixed platform, and the second motor is used to drive the second helical rod to rotate. The movable platform is provided with a first helical rod, a sector tooth, and a driven gear. The first motor drives the sector tooth to rotate, and the sector tooth and the driven gear periodically transmit power. The driven gear is used to drive the first helical rod to rotate. The first helical rod transmits power to a rotating disk with helical teeth rotatably connected to the movable platform, and the rotating disk transmits power to the second helical rod.

[0013] Furthermore, the sector-shaped tooth is a sector-shaped bevel tooth, the driven tooth is a bevel gear, the sector-shaped bevel tooth meshes with the bevel gear, the first motor is connected to the sector-shaped bevel tooth, and the bevel gear is connected to the first helical rod.

[0014] Furthermore, the mobile platform is provided with a first mounting base, which is L-shaped, and the two ends of the first spiral rod are respectively rotatably connected to the first mounting base.

[0015] The beneficial effects of this invention are as follows: During the sawing process, the first motor drives the main cutter head to rotate, simultaneously pushing the moving table forward, allowing the rotating main cutter head to saw the rubber raw material package. That is, the blade of the main cutter head saws the rubber raw material package in a combination of movement and rotation. This method of operation reduces debris generated during the sawing process and makes it easier to divide the rubber raw material package into smaller pieces. An elastic telescopic rod and friction blocks are installed on the moving table. After the main cutter head contacts the rubber raw material package, the friction blocks also contact the package. As the moving table continues to move forward, it pushes the rubber raw material package through the elastic telescopic rod, thus pushing it to both sides. During this pushing, the friction blocks are pressed tightly against the rubber raw material package, preventing slippage. After the rubber raw material package is pushed to both sides, the saw kerf widens, allowing the area of ​​the rubber raw material package to be cut to be tightened, reducing the wrapping of the blade due to deformation of the rubber raw material package during the sawing process, thereby reducing the resistance experienced by the blade during the sawing process. On the other hand, it can increase the width of the saw kerf, preventing the rubber material pack from being squeezed and attached to the side of the main cutter head. This reduces both the rotational resistance of the rubber material pack to the side of the main cutter head and the movement resistance of the rubber material pack to the side of the main cutter head. This reduces energy consumption during the sawing process and prevents the main cutter head from chipping during cutting. As a result, a thinner main cutter head can be used. A thinner main cutter head is easier to manufacture with sharp blades, making it easier for the main cutter head to cut the rubber material pack and further improving the cutting efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of an automatic bag saw for processing rubber raw materials according to Embodiment 1 of this application;

[0017] Figure 2 This is a partial cross-sectional structural diagram of the elastic telescopic rod in Embodiment 1 of this application;

[0018] Figure 3 This is a schematic diagram of the structure of an automatic bag saw for processing rubber raw materials according to Embodiment 2 of this application;

[0019] Figure 4 This is a schematic diagram of the movement process of the main cutter disc cutting the rubber raw material package in Embodiment 2 of this application;

[0020] Figure 5 for Figure 4 Enlarged view of region A in the middle;

[0021] Figure 6 This is a schematic diagram of the structure of an automatic bag saw for processing rubber raw materials according to Embodiment 3 of this application;

[0022] Explanation of icon numbers:

[0023] 1. Fixed platform; 2. Main cutter head; 3. Spreading mechanism; 4. Moving platform; 5. First motor; 6. V-shaped stop; 7. Blade; 8. Friction block; 9. Elastic telescopic rod; 10. Sleeve; 11. Sliding rod; 12. First spring; 13. Second spring; 14. Front connector; 15. Rear connector; 16. Second motor; 17. Second helical rod; 18. Threaded cylinder; 19. Clearance gap; 20. First synchronous pulley; 21. Second synchronous pulley; 22. Synchronous belt; 23. First circular part; 24. Second circular part; 25. Transition part; 27. First helical rod; 28. Sector tooth; 29. ​​Driven gear; 30. Rotating disk; 31. First mounting base. Detailed Implementation

[0024] The technical solution of the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. In the following description, the expression "some embodiments" refers to a subset of all possible embodiments; however, it should be understood that "some embodiments" can be the same subset or different subsets of all possible embodiments and can be combined with each other without conflict.

[0025] It should also be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "inner," "outer," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0026] Example 1

[0027] Please refer to the attached document. Figures 1-2This application provides an automatic rubber raw material sawing machine, including a fixed platform 1, a main cutter head 2, a spreading mechanism 3, a moving platform 4, and a first motor 5. The fixed platform 1 is provided with a V-shaped stop 6. The moving platform 4 is slidably connected to the fixed platform 1 and is provided with the main cutter head 2, the spreading mechanism 3, and the first motor 5. The edge of the main cutter head 2 is provided with a cutting edge 7. The main cutter head 2 is aligned with the protrusion of the V-shaped stop 6. The first motor 5 drives the main cutter head 2 to rotate. The spreading mechanism 3 includes a friction block 8 and an elastic telescopic rod 9. One end of the elastic telescopic rod 9 is hinged to the moving platform 4, and the other end is hinged to the friction block 8. When the main cutter head 2 cuts open the rubber raw material package, the moving platform 4 moves forward and pries the rubber raw material package on both sides of the saw kerf outward through the friction block 8. A fixed platform 1 is installed on the ground. A movable platform 4 is mounted on the fixed platform 1. The movable platform 4 moves back and forth on the fixed platform 1, moving forward towards the rubber raw material bag and backward away from the rubber raw material bag. A V-shaped stop 6 is installed on the fixed platform 1. During sawing, the rubber raw material bag is placed between the V-shaped stop 6 and the main cutter head 2. The first motor 5 drives the main cutter head 2 to cut the rubber raw material bag. In essence, during the sawing process, the first motor 5 drives the main cutter head 2 to rotate, simultaneously pushing the movable platform 4 forward, allowing the rotating main cutter head 2 to cut the rubber raw material bag. That is, the blade 7 of the main cutter head 2 cuts the rubber raw material bag using a combination of movement and rotation. The blade 7 slides relative to the rubber raw material bag, which reduces debris generated during sawing and makes it easier to cut the rubber raw material bag into smaller pieces. An elastic telescopic rod 9 and a friction block 8 are installed on the moving table 4. After the main cutter head 2 contacts the rubber material package, the friction block 8 also contacts the rubber material package. When the moving table 4 continues to move forward, it will push the rubber material package through the elastic telescopic rod 9, thereby pushing and prying the rubber material package to both sides. When pushing, the friction block 8 is pressed tightly on the rubber material package to prevent slippage. After the rubber material package is pushed to both sides, the saw kerf is opened. On the one hand, it can tighten the sawing part of the rubber material package, reduce the wrapping of the blade 7 caused by the deformation of the rubber material package during the sawing process, thereby reducing the resistance of the blade during the sawing process. After this wrapping force is reduced, the operating temperature of the blade 7 can be reduced, which plays a role in protecting the blade 7. On the other hand, it can increase the width of the saw kerf, preventing the rubber material pack from being squeezed and attached to the side of the main cutter head 2. This reduces the rotational resistance of the rubber material pack to the side of the main cutter head 2, as well as the movement resistance of the rubber material pack to the side of the main cutter head 2. This reduces energy consumption during the sawing process and prevents the main cutter head 2 from chipping during sawing. As a result, a thinner main cutter head 2 can be used. A thinner main cutter head 2 is easier to process into sharp blades 7, making it easier for the main cutter head 2 to cut and saw the rubber material pack, further improving the sawing efficiency.

[0028] Specifically, the elastic telescopic rod 9 includes a sleeve 10, a sliding rod 11, a first spring 12, a second spring 13, a front connector 14, and a rear connector 15. The front connector 14 is located at the front end of the sliding rod 11, and the sliding rod 11 is slidably connected to the sleeve 10. The sleeve 10 is provided with the first spring 12, which pushes the sliding rod 11 forward. The rear connector 15 is located at the rear end of the sleeve 10, and the rear connector 15 is rotatably connected to the moving platform 4. The middle part of the sleeve 10 is connected to the moving platform 4 through the second spring 13. Under the action of the first spring 12, the sliding rod 11 slides forward, thereby causing the elastic telescopic rod 9 to have an elongation tendency. After contacting the rubber raw material package, the elastic telescopic rod 9 presses it down. As the moving platform 4 moves forward, the elastic telescopic rod 9 is compressed and pushes the two sides of the rubber raw material package outward. The first spring 12 provides elastic thrust to break open the rubber raw material package. During the breaking process, the elastic telescopic rod 9 also rotates with the change of angle. After the cutting is completed, the second spring 13 drives the elastic telescopic rod 9 to swing back to the initial position.

[0029] Specifically, the fixed platform 1 is equipped with a second motor 16, and a second helical rod 17 is rotatably connected to the fixed platform 1. The movable platform 4 is equipped with a threaded cylinder 18 that mates with the shaft of the second helical rod 17. The second motor 16 drives the second helical rod 17 to rotate. When the second motor 16 rotates, it drives the threaded cylinder 18 to move through the second helical rod 17, thereby driving the movable platform 4 to move back and forth. When cutting the rubber raw material package, it moves forward, pushing the main cutter disc 2 forward and allowing the elastic telescopic rod 9 to pry the rubber raw material package open to both sides.

[0030] Optionally, the fixed platform 1 is provided with a second mounting base, and both ends of the second spiral rod 17 are rotatably connected to the second mounting base. The second mounting base is used to mount the second spiral rod 17, thereby improving its stability.

[0031] Specifically, the V-shaped stop 6, the moving platform 4, and the fixed platform 1 are all provided with clearance slots 19, which are aligned with the main cutter disc 2. During and after the cutting of the rubber raw material package, the main cutter disc 2 can enter the clearance slots 19, thus preventing damage to the main cutter disc 2.

[0032] Specifically, the output shaft of the first motor 5 is equipped with a first synchronous pulley 20, and the main cutter head 2 is equipped with a second synchronous pulley 21. The first synchronous pulley 20 and the second synchronous pulley 21 are connected by a synchronous belt 22. When the first motor 5 rotates, it drives the second synchronous pulley 21 to rotate through the synchronous belt 22. The first motor 5 can be installed behind the moving platform 4.

[0033] Optionally, the fixed platform 1 is provided with a sliding groove, and the movable platform 4 is provided with a slider that slides along the sliding groove. This ensures the stability of the movable platform 4 during its back-and-forth movement.

[0034] Example 2

[0035] Please refer to the attached document. Figure 3 , 4 The difference between this embodiment and Embodiment 1 is that the main cutting disc 2 includes a first circular portion 23, a second circular portion 24, and a transition portion 25. The diameter of the first circular portion 23 is smaller than the diameter of the second circular portion 24. The first circular portion 23 and the second circular portion 24 transition through the transition portion 25, which is a slope. The edges of the first circular portion 23, the transition portion 25, and the second circular portion 24 are all provided with the cutting edge 7. When the first circular portion 23 of the main cutting disc 2 rotates to the rubber raw material package, the moving table 4 moves forward a distance H1. The distance H1 is equal to 1.1 to 1.5 times the radius difference between the first circular portion 23 and the second circular portion 24. The cutting edge 7 is used to cut and saw the rubber raw material package. During the process of the cutting edge 7 of the first circular portion 23 cutting and sawing the rubber raw material package, the moving table 4 moves forward a distance H1, and the cutting edge 7 of the first circular portion 23 is used to cut and saw a portion of the rubber raw material package, as shown in the attached figure. Figure 3 In region c, during the sawing process of the rubber raw material package by the cutting edge 7 of the second circular portion 24 or the cutting edge 7 of the transition section 25, the position of the moving table 4 remains fixed, and the cutting edge 7 of the transition section 25 and the second circular portion 24 is used to saw a portion of the rubber raw material package, as shown in the attached figure. Figure 3 and 4 As shown in region b, the entire longitudinal surface of the rubber material package is eventually sawn as it rotates. The core advantage of this design is that the sawing action between the main cutter head 2 and the rubber material gradually extends from a localized area to the entire longitudinal surface. During the sawing process, the actual contact area between the blade 7 and the rubber material package remains relatively small, significantly reducing cutting resistance and making the sawing action more efficient and labor-saving. It is especially suitable for cutting rubber material packages with high hardness, effectively solving the problem of cutting high-hardness rubber material packages.

[0036] Specifically, both the first motor 5 and the second motor 16 are servo motors. The first motor 5 and the second motor 16 are connected to a controller, which controls their rotation. Servo motors can control speed and have very accurate positioning. They can convert voltage signals into torque and speed to drive the controlled object, accurately controlling the interaction between the main cutting disc 2 and the moving stage 4. This ensures that the position of the moving stage 4 remains fixed during the sawing of the rubber material package by the blade 7 of the second circular portion 24. When the first circular portion 23 of the main cutting disc 2 rotates to the rubber material package, the moving stage 4 moves forward a distance H1, which is equal to 1.1 to 1.5 times the radius difference between the first circular portion 23 and the second circular portion 24. After sawing the rubber material package, the second motor 16 reverses, driving the moving stage 4 to move backward and reset, preparing for the cutting of the next rubber material package.

[0037] Example 3

[0038] Please refer to the attached document. Figure 6The difference between this embodiment and Embodiment 2 is that the fixed platform 1 is provided with a second helical rod 17 and a second motor 16. The second helical rod 17 is rotatably connected to the fixed platform 1, and the second motor 16 is used to drive the second helical rod 17 to rotate. The movable platform 4 is provided with a first helical rod 27, a sector tooth 28, and a driven gear 29. The first motor 5 drives the sector tooth 28 to rotate, and the sector tooth 28 periodically transmits power to the driven gear 29. The driven gear 29 is used to drive the first helical rod 27 to rotate. The first helical rod 27 is transmitted to a rotating disk 30 with helical teeth rotatably connected to the movable platform 4. The rotating disk 30 transmits power to the second helical rod 17. When the first motor 5 rotates, it drives the sector tooth 28 to rotate. The tooth surface of the sector tooth 28 periodically meshes with the driven gear 29, and the sector tooth 28 drives the driven gear 29 to rotate periodically. The driven gear 29 is rotatably connected to the movable platform 4, and at the same time, the driven gear 29 is used to drive the first helical rod 27 to rotate. Since the rotating disk 30 is driven by the first helical rod 27 and the second helical rod 17, and the lead angle of the helical rod is less than the equivalent friction angle between the transmission gear teeth, when the first helical rod 27 is driven to rotate by the first motor 5, and the second motor 16 is not rotating, the first helical rod 27 can drive the rotating disk 30 to rotate. The rotation of the rotating disk 30 can only push itself to roll along the axial direction of the second helical rod 17, and the second helical rod 17 always remains stationary, ultimately driving the moving platform 4 to move; when the second helical rod 17 is driven to rotate by the second motor 16, it is driven by the first helical rod 27 to rotate by the second motor 16. Since both the rotating disk 30 and the first helical rod 27 are rotatably connected to the movable stage 4, the rotating disk 30 cannot drive the first helical rod 27 to rotate, nor can it roll along the axial direction of the first helical rod 27. At this time, neither the rotating disk 30 nor the first helical rod 27 can be driven to rotate by the second helical rod 17. That is, the rotating disk 30 cannot rotate relative to the second helical rod 17. However, since the movable stage 4 on which the rotating disk 30 is mounted can move, the second helical rod 17 pushes the rotating disk 30 to move under the action of the lead angle when it rotates, thereby driving the movable stage 4 to translate.

[0039] When sawing the rubber raw material package, the second motor 16 and the second spiral rod 17 remain stationary. The first motor 5 drives the sector gear 28 to rotate, and the sector gear 28 periodically drives the driven gear 29 to rotate counterclockwise. At this time, the driven gear 29 drives the first spiral rod 27 to rotate, and the first spiral rod 27 drives the rotating disk 30 to rotate. The rotation of the rotating disk 30 pushes itself to roll along the axial direction of the second spiral rod 17, thereby causing the moving table 4 to move forward intermittently. This ensures that when the first circular part 23 of the main cutter disc 2 rotates to the rubber raw material package, the moving table 4 moves forward a distance H1. The distance H1 is equal to 1.1 to 1.5 times the radius difference between the first circular part 23 and the second circular part 24.

[0040] After the rubber raw material package is cut, the second motor 16 drives the second spiral rod 17 to rotate. Since the rotating disk 30 and the first spiral rod 27 are both rotatably connected to the moving table 4, the rotating disk 30 cannot drive the first spiral rod 27 to rotate, nor can it roll along the axial direction of the first spiral rod 27. At this time, neither the rotating disk 30 nor the first spiral rod 27 can be driven to rotate by the second spiral rod 17. That is, the rotating disk 30 cannot rotate relative to the second spiral rod 17. However, since the moving table 4 on which the rotating disk 30 is mounted can move, the second spiral rod 17 pushes the rotating disk 30 to move under the action of the lead angle when it rotates, thereby driving the moving table 4 to move backward to reset, in preparation for the cutting of the next rubber raw material package.

[0041] Furthermore, while the second motor 16 rotates, the first motor 5 can also maintain rotation. The first motor 5 drives the rotating disk 30 to rotate at a certain angle, which can prevent the rotating disk 30 from always contacting the screw rod in one position, thus improving the wear resistance of the rotating disk 30. The rapid rotation of the second motor 16 can be used to drive the moving table 4 to move backward and reset quickly, improving processing efficiency. Both the first motor 5 and the second motor 16 can be ordinary motors, resulting in lower equipment costs. When the first motor 5 rotates, it inevitably drives the moving table 4 to move intermittently through structures such as the sector teeth 28, ensuring control accuracy and stability.

[0042] Specifically, the first motor 5 driving the sector tooth 28 to rotate includes the first motor 5 directly driving the sector tooth 28 to rotate via a connecting shaft, and the first motor 5 driving the sector tooth 28 to rotate via a gear set, such as a bevel gear set. The driven gear 29 driving the first screw rod 27 to rotate includes the driven gear 29 directly driving the first screw rod 27 to rotate via a connecting shaft, and the driven gear 29 driving the first screw rod 27 to rotate via a gear set, such as a bevel gear set.

[0043] The way the first motor 5 drives the sector gear 28 can be selected according to the spatial arrangement, the way the driven gear 29 drives the first screw rod 27 to rotate can be selected according to the spatial arrangement, and the gear types of the sector gear 28 and the driven gear 29 can be selected according to the spatial arrangement.

[0044] For example, when the output shaft of the first motor 5 is parallel to the first screw rod 27, the output shaft of the first motor 5 can be directly connected to the planar sector tooth 28, the planar sector tooth 28 rotates with the planar driven gear 29, the planar driven gear 29 is connected to the first screw rod 27, and finally drives the first screw rod 27 to rotate.

[0045] For example, when the output shaft of the first motor 5 is perpendicular to the first screw rod 27, the output shaft of the first motor 5 can be directly connected to the planar sector teeth 28, which in turn connects to the planar driven gear 29. Finally, the driven gear 29 drives the first screw rod 27 to rotate via a bevel gear set. Alternatively, the output shaft of the first motor 5 can drive the planar sector teeth 28 to rotate via a bevel gear set. The planar sector teeth 28 and the planar driven gear 29 rotate, and the planar driven gear 29 connects to the first screw rod 27, ultimately driving the first screw rod 27 to rotate.

[0046] Preferably, when the output shaft of the first motor 5 is perpendicular to the first screw rod 27, the sector-shaped tooth 28 is a sector-shaped bevel tooth, the driven tooth is a bevel gear, the sector-shaped bevel tooth meshes with the bevel gear, the first motor 5 is connected to the sector-shaped bevel tooth, and the bevel gear is connected to the first screw rod 27. A sector-shaped bevel tooth refers to a bevel gear with protruding teeth only in a sector-shaped area. When the first motor 5 rotates, it directly drives the sector-shaped bevel tooth to rotate. The sector-shaped bevel tooth periodically meshes with the bevel gear during rotation, thereby periodically driving the bevel gear to rotate. This structural design is more compact, reduces the number of parts, and can stably drive the first screw rod 27 to rotate.

[0047] Specifically, the mobile platform 4 is provided with a first mounting base 31, which is L-shaped, and both ends of the first spiral rod 27 are rotatably connected to the first mounting base 31. The first spiral rod 27 is mounted via the first mounting base 31, thereby improving its stability.

[0048] The above are merely specific embodiments of the present invention, but the scope of protection of the present invention 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 the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. An automatic bag-cutting machine for processing rubber raw materials, characterized in that, The system includes a fixed platform (1), a main cutter head (2), a spreading mechanism (3), a moving platform (4), and a first motor (5). The fixed platform (1) is provided with a V-shaped stop (6). The moving platform (4) is slidably connected to the fixed platform (1). The moving platform (4) is provided with the main cutter head (2), the spreading mechanism (3), and the first motor (5). The edge of the main cutter head (2) is provided with a cutting edge (7). The main cutter head (2) is aligned with the protrusion of the V-shaped stop (6). The first motor (5) drives the main cutter head (2) to rotate. The spreading mechanism (3) includes a friction block (8) and an elastic telescopic rod (9). One end of the elastic telescopic rod (9) is hinged to the moving platform (4), and the other end is hinged to the friction block (8). When the main cutter head (2) cuts open the rubber raw material package, the moving platform (4) moves forward and pries open the rubber raw material packages on both sides of the saw kerf through the friction block (8).

2. The automatic bag-cutting machine for processing rubber raw materials according to claim 1, characterized in that, The elastic telescopic rod (9) includes a sleeve (10), a sliding rod (11), a first spring (12), a second spring (13), a front connector (14), and a rear connector (15). The front connector (14) is provided at the front end of the sliding rod (11). The sliding rod (11) is slidably connected to the sleeve (10). The sleeve (10) is provided with the first spring (12) that pushes the sliding rod (11) forward. The rear connector (15) is provided at the rear end of the sleeve (10). The rear connector (15) is rotatably connected to the moving platform (4). The middle part of the sleeve (10) is connected to the moving platform (4) through the second spring (13).

3. The automatic bag-cutting machine for processing rubber raw materials according to claim 1, characterized in that, The fixed platform (1) is equipped with a second motor (16), and a second helical rod (17) is rotatably connected to the fixed platform (1). The movable platform (4) is equipped with a threaded cylinder (18) that cooperates with the shaft of the second helical rod (17). The second motor (16) is used to drive the second helical rod (17) to rotate.

4. The automatic bag-cutting machine for processing rubber raw materials according to claim 1, characterized in that, The V-shaped stop (6), the moving platform (4) and the fixed platform (1) are all provided with clearance slots (19), which are aligned with the main cutter head (2).

5. An automatic bag-cutting machine for processing rubber raw materials according to claim 1, characterized in that, The output shaft of the first motor (5) is provided with a first synchronous pulley (20), and the main cutter disc (2) is provided with a second synchronous pulley (21). The first synchronous pulley (20) and the second synchronous pulley (21) are connected by a synchronous belt (22).

6. The automatic bag-cutting machine for processing rubber raw materials according to claim 1, characterized in that, The main cutter disc (2) includes a first circular part (23), a second circular part (24), and a transition part (25). The diameter of the first circular part (23) is smaller than the diameter of the second circular part (24). The first circular part (23) and the second circular part (24) are connected by the transition part (25). The transition part (25) is a slope. The edges of the first circular part (23), the transition part (25), and the second circular part (24) are all provided with the cutting edge (7). When the first circular part (23) of the main cutter disc (2) rotates to the rubber raw material package, the moving table (4) moves forward a distance H1. The distance H1 is equal to 1.1 to 1.5 times the radius difference between the first circular part (23) and the second circular part (24).

7. An automatic bag-cutting machine for processing rubber raw materials according to claim 3, characterized in that, The first motor (5) and the second motor (16) are both servo motors, and the first motor (5) and the second motor (16) are connected to the controller signal.

8. The automatic bag-cutting machine for processing rubber raw materials according to claim 1, characterized in that, The fixed platform (1) is provided with a second helical rod (17) and a second motor (16). The second helical rod (17) is rotatably connected to the fixed platform (1). The second motor (16) is used to drive the second helical rod (17) to rotate. The movable platform (4) is provided with a first helical rod (27), a sector tooth (28) and a driven gear (29). The first motor (5) drives the sector tooth (28) to rotate. The sector tooth (28) and the driven gear (29) are periodically driven. The driven gear (29) is used to drive the first helical rod (27) to rotate. The first helical rod (27) is driven by a rotating disk (30) with helical teeth rotatably connected to the movable platform (4). The rotating disk (30) is driven by the second helical rod (17).

9. An automatic bag-cutting machine for processing rubber raw materials according to claim 8, characterized in that, The sector tooth (28) is a sector bevel tooth, the driven tooth is a bevel gear, the sector bevel tooth meshes with the bevel gear, the first motor (5) is connected to the sector bevel tooth, and the bevel gear is connected to the first helical rod (27).

10. An automatic bag-cutting machine for processing rubber raw materials according to claim 8, characterized in that, The mobile platform (4) is provided with a first mounting base (31), which is L-shaped, and the two ends of the first spiral rod (27) are rotatably connected to the first mounting base (31).

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