A multi-station cutting device

Abstract

The present invention discloses a multi-station blanking device. The multi-station blanking device includes a coil uncoiling section, a buffer and guiding section, a metering and cutting section, and a material leveling section. The coil uncoiling section includes a first uncoiling unit and a second uncoiling unit. The first uncoiling unit includes two first uncoiling rollers, and the second uncoiling unit includes two second uncoiling rollers. The buffer and guiding section includes a first bracket and a second bracket. The height of the first end of the first bracket is less than the height of the second end of the first bracket, and the height of the first end of the second bracket is less than the height of the second end of the second bracket. The feeding end of the metering and cutting section is arranged at the first end of the buffer and guiding section. In the present invention, the coil is placed on the first uncoiling roller, and the material is conveyed to the first bracket through the first feeding roller and the second feeding roller. The coil is placed on the second uncoiling roller, and the coil can be uncoiled from the top or from the bottom. The material is conveyed to the second bracket through the third feeding roller, and the placing direction of the material is not restricted.

Description

Technical Field

[0001] The invention relates to the field of coiled material production and manufacturing, and in particular to a multi-station cutting device. Background Art

[0002] The existing unwinding device can only unwind the material in a fixed rotation direction to make the material reach the cutting position, which has poor versatility. In order to make the coiled material in the unwinding direction corresponding to the equipment, the staff needs to exert greater labor intensity, and the labor cost is high. The guidance of the coiled material from unwinding to cutting mechanism is poor, and the material is prone to deviation during the unwinding process, which makes the operation difficult. In the related technology, the remaining stretched part of the coiled material after cutting is difficult to recover and properly place, and can only be recovered by rewinding with a longer length, which further increases the difficulty of operation. Summary of the invention

[0003] In order to solve at least one of the above technical problems, the present invention provides a multi-station cutting device, and the technical solution adopted is as follows:

[0004] The present invention provides a multi-station material unwinding device, which comprises a coil unwinding portion, a buffer and guiding portion, a metering and cutting portion, and a material leveling portion. The coil unwinding portion comprises a first unwinding unit and a second unwinding unit. The first unwinding unit and the second unwinding unit are horizontally arranged in parallel. The first unwinding unit comprises two first unwinding rollers and a first support frame. The two first unwinding rollers are horizontally arranged in parallel. The two first unwinding rollers are arranged at intervals. The first support frame is at the first end of the first unwinding unit. A first feeding roller is arranged on the first support frame. The second unwinding unit comprises two second unwinding rollers and a second support frame. The two second unwinding rollers are horizontally arranged in parallel. The two second unwinding rollers are arranged at intervals. The second support frame is at the first end of the second unwinding unit. A second feeding roller is arranged on the second support frame. Roller, a third feed roller, the height of the second feed roller corresponds to that of the first feed roller, and the height of the third feed roller is less than that of the second feed roller; the second end of the buffer guiding part is arranged at the first end of the second unwinding unit, the buffer guiding part comprises a first bracket and a second bracket, the first bracket is inclined, the height of the first end of the first bracket is less than the height of the second end of the first bracket, the height of the second end of the first bracket corresponds to the height of the second feed roller, the second bracket is inclined, the height of the first end of the second bracket is less than the height of the second end of the second bracket, and the height of the second end of the second bracket corresponds to the height of the third feed roller; the feeding end of the metering and cutting part is arranged at the first end of the buffer guiding part; a material leveling part, the material leveling part is connected to the feeding end of the metering and cutting part.

[0005] In some embodiments of the present invention, two first protrusions are provided on the first bracket, and the two first protrusions are respectively located on both sides of the first bracket, and two second protrusions are provided on the second bracket, and the two second protrusions are respectively located on both sides of the second bracket.

[0006] In certain embodiments of the present invention, the metering and cutting part includes a frame, a metering roller, and a cutting unit. The two ends of the metering roller are respectively connected to the two sides of the frame. The metering roller includes a power roller and a pressure roller. The power roller is driven by a chain. The power roller is connected to an encoder. The two ends of the pressure roller are respectively connected to a first cylinder, which is used to lift or lower the pressure roller. The cutting unit is connected to the frame and is used to cut the material.

[0007] In certain embodiments of the present invention, the cutting unit includes a guide bracket, a material placement platform, and a tool holder, the guide bracket is provided with a guide rail, the guide rail is horizontally arranged, the guide rail protrudes from the guide bracket, the tool holder is provided with a guide component, the guide component is provided with a recessed portion, the guide rail is movably connected to the recessed portion, the guide component can slide on the guide rail, the tool holder is provided with a tool, and the material placement platform is used to support materials.

[0008] In certain embodiments of the present invention, a bottom knife is disposed on the material placement platform, and the tool comprises a circular rolling cutter, and the cutting path of the circular rolling cutter coincides with the blade of the bottom knife.

[0009] In certain embodiments of the present invention, a rack is provided on the guide bracket, the rack is arranged horizontally, a gear is provided on the tool holder, the gear is rotatably connected to the tool holder, and the gear is meshed with the rack.

[0010] In certain embodiments of the present invention, a second cylinder is provided on the guide bracket, the second cylinder is longitudinally arranged, a pressure strip is connected to the bottom of the second cylinder, the pressure strip is located below the guide bracket, and the second cylinder drives the pressure strip to move so that the pressure strip can press the material.

[0011] In certain embodiments of the present invention, the material leveling portion includes a first leveling roller and a second leveling roller, both ends of the second leveling roller are respectively connected to both sides of the frame, the two second leveling rollers have the same height, the two second leveling rollers are arranged at intervals, there is a height difference between the first leveling roller and the second leveling roller, and the area between the first leveling roller and the second leveling roller is used to allow the material to pass through.

[0012] In certain embodiments of the present invention, both ends of the first leveling roller are provided with height adjustment mechanisms, and the height adjustment mechanisms are arranged on both sides of the frame. The height adjustment mechanisms are used to adjust the height of the first leveling roller, and the first leveling roller can pass through the gap between the two second leveling rollers.

[0013] In certain embodiments of the present invention, the height adjustment mechanism includes a rotating rod and a movable support, the rotating rod is provided with an external thread, the movable support is provided with an internal thread, the internal thread is meshed with the external thread, and the first leveling roller is connected to the movable support.

[0014] The embodiments of the present invention have at least the following beneficial effects: In the present invention, the coil is placed on two first unwinding rollers, the coil is unwound from the top, and as the first unwinding roller rotates forward, the material is conveyed to the first bracket through the first feeding roller and the second feeding roller, and then conveyed to the metering and cutting part for cutting; the coil is placed on two second unwinding rollers, the coil can be unwound from the top or from the bottom, when the material is unwound from the top, the second unwinding roller rotates forward, the material abuts and passes through the third feeding roller from the bottom of the third feeding roller, and then conveyed to the second bracket, and finally conveyed to the metering and cutting part for cutting, when the material is unwound from the bottom, the second unwinding roller reverses, the material abuts and passes through the third feeding roller from the top of the third feeding roller, and then conveyed to the second bracket and reaches the metering and cutting part, the placement direction of the material is not restricted, and the labor intensity of the staff is reduced. After the cutting is completed, the material can be rewound slightly to be separated from the metering and cutting part and stored on the first bracket or the second bracket, reducing the difficulty of rewinding and improving work efficiency.

[0015] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0017] Figure 1 It is a structural schematic diagram of a multi-station cutting device of the present invention;

[0018] Figure 2 It is a structural schematic diagram of a coil unwinding portion in a multi-station unwinding device of the present invention;

[0019] Figure 3 It is a top view of a coil unwinding portion in a multi-station unwinding device of the present invention;

[0020] Figure 4 It is a structural schematic diagram of a buffer and guide part in a multi-station cutting device of the present invention;

[0021] Figure 5 It is a structural schematic diagram of a metering and cutting part in a multi-station cutting device of the present invention;

[0022] Figure 6 It is a schematic diagram of a discharging end of a metering and cutting part in a multi-station cutting device of the present invention;

[0023] Figure 7 It is a schematic diagram of a feeding end of a metering and cutting part in a multi-station cutting device of the present invention;

[0024] Figure 8 It is a structural schematic diagram of a material leveling part in a multi-station cutting device of the present invention;

[0025] Fig. 9 It is a partial enlarged view of a multi-station cutting device of the present invention.

[0026] Reference numerals:

[0027] 101. coil unwinding section; 102. first unwinding roller; 103. first support frame; 104. first feeding roller; 105. second unwinding roller; 106. second support frame; 107. second feeding roller; 108. third feeding roller;

[0028] 201. buffer guide portion; 202. first bracket; 203. second bracket; 204. first raised portion; 205. second raised portion;

[0029] 301. Measuring and cutting part; 302. Machine frame; 303. Measuring roller; 304. Guide bracket; 305. Material placing platform; 306. Tool holder; 307. Guide rail; 308. Bottom knife; 309. Round knife; 310. Rack; 311. Pressing strip;

[0030] 401. Material leveling unit; 402. First leveling roller; 403. Second leveling roller; 404. Rotating rod. DETAILED DESCRIPTION

[0031] This section will combine Figures 1 to 9 Embodiments of the present invention are described in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that if the terms "center", "middle", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The features defined as "first" and "second" are used to distinguish the feature names, rather than having special meanings. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] like Figure 1 As shown, an embodiment of the present invention provides a multi-station cutting device, which includes a coil unwinding part 101, a buffering and guiding part 201, a metering and cutting part 301, and a material leveling part 401.

[0035] like Figures 2 to 3 As shown, the coil unwinding section 101 includes a first unwinding unit and a second unwinding unit, both of which can store coils and unwind the coils. The first unwinding unit and the second unwinding unit are arranged horizontally and side by side. It can be understood that, due to the large diameter of the coil, in order to avoid the coils on the first unwinding unit and the coils on the second unwinding unit from abutting and interfering with each other, thereby affecting the position stability of the coils and affecting the normal unwinding of the coils, there is a certain distance between the first unwinding unit and the second unwinding unit.

[0036] The first unwinding unit includes two first unwinding rollers 102, which are arranged horizontally and side by side. The two first unwinding rollers 102 can support the coil. It can be understood that in order to stabilize the position of the coil and prevent the coil from falling from the two first unwinding rollers 102, there is a certain distance between the two first unwinding rollers 102. When the coil is placed on the two first unwinding rollers 102, the center of gravity of the coil is between the two first unwinding rollers 102. When the first unwinding roller 102 rotates forward, the coil starts to unwind from the top. The first unwinding unit also includes a first support frame 103, which is used to carry and transport the material that has extended from the position of the first unwinding roller 102. Specifically, a first feeding roller 104 is arranged on the first support frame 103. As the material continues to extend, the first feeding roller 104 rotates to form rolling friction to avoid damage to the surface of the material.

[0037] The second unwinding unit includes two second unwinding rollers 105, which are arranged horizontally and side by side. The two second unwinding rollers 105 can also support the coiled material. In order to stabilize the position of the coiled material, there is a certain distance between the two second unwinding rollers 105. When the unwinding part of the material is at the top of the material, the two second unwinding rollers 105 rotate forward, drive the coiled material to rotate forward, and thus the material is unwound; when the unwinding part of the material is at the bottom of the material, the two second unwinding rollers 105 rotate reversely, drive the coiled material to rotate in the opposite direction, and thus the material is unwound. The material in the second unwinding unit can be rotated in different directions to unwind the material, avoiding the staff from manually turning over the large coiled material to adapt to the equipment, improving work efficiency, reducing the labor intensity of the staff, and improving the versatility of the multi-station unwinding device.

[0038] Furthermore, the second unwinding unit further includes a second support frame 106, which is used to carry and convey the material that has extended from the position of the first unwinding roller 102 and the material that has extended from the position of the second unwinding roller 105. Specifically, the second support frame 106 is provided with a second feeding roller 107 and a third feeding roller 108, and the material extending from the position of the first unwinding roller 102 is conveyed to the second feeding roller 107 after passing through the first feeding roller 104, and is further conveyed to the subsequent structure by abutting against the tops of the first feeding roller 104 and the second feeding roller 107.

[0039] The material extending from the second unwinding roller 105 passes through the third feeding roller 108 and is gradually transported to the subsequent structure. Specifically, since the coiled material on the second unwinding roller 105 can be unwound in two opposite rotation directions, the contact mode between the material and the third feeding roller 108 is different. When the coiled material is unwound in the forward rotation, the extended material abuts against the bottom of the third feeding roller 108 and is further transported; when the coiled material is unwound in the reverse rotation, the extended material abuts against the top of the third feeding roller 108 and is further transported, ensuring that the coiled material can be smoothly transported when unwound in any direction.

[0040] It can be understood that since the coiled material on the first unwinding roller 102 has a longer conveying distance, in order to avoid interference between the material on the first unwinding roller 102 and the material travel path on the second unwinding roller 105, the heights of the first feed roller 104 and the second feed roller 107 are approximately the same, and the height of the second feed roller 107 is greater than the height of the third feed roller 108, and there is a certain distance between the second feed roller 107 and the third feed roller 108.

[0041] like Figure 4 As shown, in some examples, the second end of the buffering and guiding part 201 is arranged at the first end of the second unwinding unit, that is, the second end of the buffering and guiding part 201 is close to the first end of the second unwinding unit, and the second end of the buffering and guiding part 201 is far away from the first end of the second unwinding unit. It is ensured that the material can reach the buffering and guiding part 201 after being transported out of the coil unwinding part 101, and is gradually transported from the second end of the buffering and guiding part 201 to the first end of the buffering and guiding part 201. Since the material is output from the coil unwinding part 101 at two different heights at different stations, the buffering and guiding part 201 needs to receive the material at different heights. Therefore, the buffering and guiding part 201 includes a first bracket 202 and a second bracket 203. The first bracket 202 is used to receive the material transported at a high position, and the second bracket 203 is used to receive the material transported at a low position. Therefore, the height of the first bracket 202 is greater than the height of the second bracket 203. It can be understood that the height of the second end of the first bracket 202 corresponds to the height of the second feeding roller 107 , and the height of the second end of the second bracket 203 corresponds to the height of the third feeding roller 108 .

[0042] Specifically, to facilitate the conveying of materials on the first bracket 202 or the second bracket 203, the first bracket 202 is tilted, and the height of the first end of the first bracket 202 is less than the height of the second end of the first bracket 202, and the second bracket 203 is tilted, and the height of the first end of the second bracket 203 is less than the height of the second end of the second bracket 203.

[0043] In some examples, the first bracket 202 is provided with two first protrusions 204, the two first protrusions 204 are located on both sides of the first bracket 202, and the material is transported in the area between the two first protrusions 204. When the material has a tendency to deviate, the first protrusions 204 give the material a reverse force to correct the transport direction of the material. Correspondingly, the second bracket 203 is provided with two second protrusions 205, the two second protrusions 205 are located on both sides of the second bracket 203, and the material is transported in the area between the two second protrusions 205.

[0044] like Figure 5 , Figure 6 , Figure 7As shown, in some examples, the feed end of the metering and cutting section 301 is arranged at the first end of the buffer and guiding section 201. After the material is transported out of the buffer and guiding section 201, it enters the material leveling section 401, and enters the metering and cutting section 301 after being leveled by three T-shaped rollers. The length of the material is measured by the metering and cutting section 301, so that the length of the material meets the requirements, and then it is cut.

[0045] In some examples, the metering and cutting section 301 includes a frame 302, a metering roller 303, and a cutting unit. The two ends of the metering roller 303 are respectively connected to the two sides of the frame 302. The metering roller 303 is arranged horizontally. The metering roller 303 includes a power roller and a pressure roller. The power roller and the pressure roller are arranged in parallel longitudinally. The material passes between the power roller and the pressure roller. The two ends of the pressure roller are respectively connected to the first cylinder. Under the drive of the first cylinder, the pressure roller presses the material. The power roller is driven by a chain, and the power roller is subjected to friction and rotates. Since the diameter of the power roller is determined, the length of the material passed can be accurately obtained by the diameter of the power roller and the rotation angle, so that the length of the extracted material meets the required length. It can be understood that a gap is provided between the power roller and the pressure roller. The width of the gap can be adjusted by driving the first cylinder to ensure that the power roller can be subjected to sufficient friction.

[0046] In some examples, the cutting unit is connected to the frame 302, and the cutting unit cuts the material after the metering roller 303 determines the length of the material. The cutting unit includes a guide bracket 304, a material placement platform 305, and a tool holder 306, and the tool cuts along the width direction of the material in a translational manner. Specifically, a guide rail 307 is provided on the guide bracket 304, and the guide rail 307 is horizontally arranged, and the guide rail 307 protrudes from the guide bracket 304. The tool holder 306 can move on the guide rail 307. A guide component is provided on the tool holder 306, and a recessed portion is provided on the guide component, and the recessed portion is connected to the guide rail 307. By moving the guide component on the guide rail 307, the tool holder 306 moves on the guide rail 307, thereby completing the cutting task.

[0047] It can be understood that a tool is provided on the tool holder 306 , and the tool cuts the material. The material placement platform 305 is used to support the material so that the position of the material is relatively stable during the cutting process of the tool, thereby improving the cutting efficiency.

[0048] In some examples, a bottom knife 308 is provided on the material placement platform 305, and the cutting tool includes a circular cutter 309. The bottom surface of the material to be cut abuts against the bottom knife 308, and the top surface contacts the circular cutter 309. During the movement of the circular cutter 309 along the cutting portion, due to the friction between the blade of the circular cutter 309 and the top surface of the material to be cut, the circular cutter 309 rotates continuously, thereby completing the cutting task. It can be understood that the cutting path of the circular cutter 309 coincides with the blade of the bottom knife 308 to ensure that the cutting edges on both sides of the material are at the same horizontal position, thereby further ensuring that the length of the extracted material meets the requirements.

[0049] In some examples, since the tool holder 306 needs to move, a rack 310 is provided on the guide bracket 304, the rack 310 is arranged horizontally, and a gear is provided on the tool holder 306, and the gear is meshed with the rack 310 to make the tool holder 306 move horizontally. The gear is rotatably connected to the tool holder 306, and when the gear rotates, the gear rack 310 is connected to convert the rotational motion into linear motion, thereby driving the tool holder 306 to move.

[0050] In some examples, since the material extends from the coil to the material placement platform 305, the material still has a tendency to curl. To ensure that the material is in a stable position during the cutting process, a second cylinder is provided on the guide bracket 304. It can be understood that the second cylinder is arranged longitudinally, and a pressure bar 311 is connected to the bottom of the second cylinder. The pressure bar 311 is located below the guide bracket 304, and the second cylinder can drive the pressure bar 311 to move longitudinally so that the pressure bar 311 presses the material.

[0051] like Figures 8 to 9 As shown, in some examples, the feeding end of the metering and cutting part 301 is provided with a material leveling part 401, and the material leveling part 401 is used to alleviate the curling tendency of the material and reduce the curling degree of the material, thereby ensuring the cutting accuracy. The material leveling part 401 includes a first leveling roller 402 and a second leveling roller 403, the first leveling roller 402 and the second leveling roller 403 are arranged horizontally, the two ends of the second leveling roller 403 are respectively connected to the two sides of the frame 302, two second leveling rollers 403 are arranged, and the two second leveling rollers 403 are arranged horizontally at intervals, there is a height difference between the first leveling roller 402 and the second leveling roller 403, the first leveling roller 402 is within the range between the two second leveling rollers 403, and the interval between the two second leveling rollers 403 can allow the first leveling roller 402 to pass through, and the area between the first leveling roller 402 and the second leveling roller 403 is used to allow the material to pass through.

[0052] In some examples, since the material has two unwinding directions, when the material reaches the material placement platform 305, it has a tendency to roll up or roll down. When the material has a tendency to roll up, the height of the first leveling roller 402 is less than the height of the second leveling roller 403, so that the first leveling roller 402 squeezes the material upward; when the material has a tendency to roll down, the height of the first leveling roller 402 is greater than the height of the second leveling roller 403, so that the first leveling roller 402 squeezes the material downward. That is, the height of the first leveling roller 402 relative to the second leveling roller 403 can be adjusted.

[0053] Specifically, both ends of the first leveling roller 402 are provided with height adjustment mechanisms, which are arranged on both sides of the frame 302. The first leveling roller 402 can pass through the gap between the two second leveling rollers 403 under the drive of the height adjustment mechanism. The height adjustment mechanism includes a rotating rod 404 and a movable support. Both ends of the first leveling roller 402 are connected to the movable support, which is provided with an internal thread. The rotating rod 404 is arranged on the frame 302, and the rotating rod 404 is provided with an external thread. The external thread cooperates with the internal thread to change the height of the movable support, that is, to change the height of the first leveling roller 402.

[0054] In the description of this specification, if the reference terms "one embodiment", "some examples", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" appear, it means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0055] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A multi-station cutting device, It is characterized in that include: A coil unwinding section, wherein the coil unwinding section comprises a first unwinding unit and a second unwinding unit, wherein the first unwinding unit and the second unwinding unit are horizontally arranged in parallel, wherein the first unwinding unit comprises two first unwinding rollers and a first support frame, wherein the two first unwinding rollers are horizontally arranged in parallel, wherein the two first unwinding rollers are arranged at intervals, wherein the first support frame is located at a first end of the first unwinding unit, wherein a first feeding roller is arranged on the first support frame, wherein the second unwinding unit comprises two second unwinding rollers and a second support frame, wherein the two second unwinding rollers are horizontally arranged in parallel, wherein the two second unwinding rollers are arranged at intervals, wherein the second support frame is located at a first end of the second unwinding unit, wherein a second feeding roller and a third feeding roller are arranged on the second support frame, wherein the second feeding roller corresponds to a height of the first feeding roller, and a height of the third feeding roller is less than a height of the second feeding roller; A buffering and guiding part, wherein the second end of the buffering and guiding part is arranged at the first end of the second unwinding unit, and the buffering and guiding part comprises a first bracket and a second bracket, wherein the first bracket is arranged obliquely, the height of the first end of the first bracket is less than the height of the second end of the first bracket, and the height of the second end of the first bracket corresponds to the height of the second feeding roller, and the second bracket is arranged obliquely, the height of the first end of the second bracket is less than the height of the second end of the second bracket, and the height of the second end of the second bracket corresponds to the height of the third feeding roller; A metering and cutting section, wherein a feeding end of the metering and cutting section is arranged at a first end of the buffering and guiding section; A material leveling portion is connected to a feeding end of the metering and cutting portion.

2. The multi-station cutting device according to claim 1, It is characterized in that The first bracket is provided with two first protrusions, and the two first protrusions are respectively located on both sides of the first bracket; the second bracket is provided with two second protrusions, and the two second protrusions are respectively located on both sides of the second bracket.

3. The multi-station cutting device according to claim 1, It is characterized in that The metering and cutting part includes a frame, a metering roller, and a cutting unit. The two ends of the metering roller are respectively connected to the two sides of the frame. The metering roller includes a power roller and a pressure roller. The power roller is driven by a chain. The power roller is connected to an encoder. The two ends of the pressure roller are respectively connected to a first cylinder, which is used to lift or lower the pressure roller. The cutting unit is connected to the frame and is used to cut off materials.

4. The multi-station cutting device according to claim 3, It is characterized in that The cutting unit includes a guide bracket, a material placement platform, and a tool holder. The guide bracket is provided with a guide rail, which is horizontally arranged and protrudes from the guide bracket. The tool holder is provided with a guide component, which is provided with a recessed portion. The guide rail is movably connected to the recessed portion, and the guide component can slide on the guide rail. A tool is provided on the tool holder, and the material placement platform is used to support materials.

5. The multi-station cutting device according to claim 4, It is characterized in that A bottom knife is arranged on the material placement platform, and the tool comprises a circular rolling cutter, and the cutting path of the circular rolling cutter coincides with the blade of the bottom knife.

6. The multi-station cutting device according to claim 4 or 5, It is characterized in that The guide bracket is provided with a rack, the rack is arranged horizontally, the tool holder is provided with a gear, the gear is rotatably connected to the tool holder, and the gear is meshed with the rack.

7. The multi-station cutting device according to claim 4 or 5, It is characterized in that A second cylinder is arranged on the guide bracket, the second cylinder is arranged longitudinally, a pressure strip is connected to the bottom of the second cylinder, the pressure strip is located below the guide bracket, and the second cylinder drives the pressure strip to move so that the pressure strip can press the material.

8. The multi-station cutting device according to claim 3, It is characterized in that The material leveling part includes a first leveling roller and a second leveling roller, the two ends of the second leveling roller are respectively connected to the two sides of the frame, the two second leveling rollers have the same height, the two second leveling rollers are arranged at intervals, there is a height difference between the first leveling roller and the second leveling roller, and the area between the first leveling roller and the second leveling roller is used to allow the material to pass through.

9. The multi-station cutting device according to claim 8, It is characterized in that Both ends of the first leveling roller are provided with height adjustment mechanisms, and the height adjustment mechanisms are arranged on both sides of the frame. The height adjustment mechanisms are used to adjust the height of the first leveling roller, and the first leveling roller can pass through the gap between the two second leveling rollers.

10. The multi-station cutting device according to claim 9, It is characterized in that The height adjustment mechanism includes a rotating rod and a movable support. The rotating rod is provided with an external thread, the movable support is provided with an internal thread, the internal thread is meshed with the external thread, and the first leveling roller is connected to the movable support.

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