A length cutting device for closing strip of garbage bag

Abstract

This invention discloses a fixed-length cutting device for garbage bag sealing strips, relating to the field of garbage bag production technology. It includes a fixed base, with a height adjustment frame mechanism and a conveying drive frame mechanism on the upper surface of the fixed base. The height adjustment frame mechanism and the conveying drive frame mechanism are respectively located at both ends of the fixed base. A bottom conveying mechanism is provided between the height adjustment frame mechanism and the conveying drive frame mechanism. Two symmetrically arranged lifting frame mechanisms are provided between the height adjustment frame mechanism and the conveying drive frame mechanism. A pressing conveying mechanism is provided between the two lifting frame mechanisms. Two linkage mechanisms are provided between the pressing conveying mechanism and the lifting frame mechanism. The linkage mechanisms are connected to a synchronous belt mechanism. Several follow-up pressure plate mechanisms are provided between the two synchronous belt mechanisms. Several cutting blade mechanisms are provided on the pressing conveying mechanism. This invention, by setting up a height adjustment frame mechanism, can adjust the height of the pressing conveying mechanism, thereby improving the efficiency of garbage bag sealing strip cutting.

Description

Technical Field

[0001] This invention relates to the field of garbage bag production technology, specifically a garbage bag sealing strip fixed-length cutting device. Background Technology

[0002] Garbage bags are widely used hygiene products in daily life. To make it easier for users to tie the bag closed, many garbage bags have a drawstring (also called a closure strip, pull cord, etc.) at the opening. The drawstring is usually made of plastic or paper and needs to be cut to a predetermined length from a continuous strip of raw material before being assembled with the bag body. Existing drawstring cutting devices mainly employ the following methods:

[0003] Manual cutting: Operators use scissors or simple cutting tools to manually cut the material according to the marked length. This method is extremely inefficient, has a large length error, and is labor-intensive.

[0004] Roller conveyor cutting: The cutting strip is pulled by a pair of conveyor rollers, and a fixed cutter is set at the output end. Fixed length cutting is achieved by intermittent feeding. However, there is a lack of synchronous linkage between the conveyor rollers and the cutter, which can easily lead to feeding length deviation or incomplete cutting.

[0005] Independent servo cutting: The cutter is driven by a servo motor and a feeding encoder is used to achieve fixed-length cutting. Although the accuracy is high, the equipment is expensive and it is prone to slippage or stretching deformation when cutting thin and soft end strips.

[0006] Existing technologies generally suffer from the following problems:

[0007] Asynchronous conveying and cutting: The conveying and cutting mechanisms of traditional devices are driven by different power sources, making it difficult to ensure precise cutting at a designated position during continuous conveying, which can easily lead to tilted cuts or inconsistent lengths.

[0008] Insufficient clamping force: The material of the sealing strip is relatively soft, and it is easy to lift or shift during the conveying process, resulting in uneven cuts or incomplete cuts when cutting.

[0009] Inconvenient adjustment: When it is necessary to change the cutting length or adapt to different widths of the finishing strip, traditional equipment requires manual adjustment of the cutter position or replacement of parts, which is cumbersome and time-consuming.

[0010] Low level of automation: It lacks integrated control for automatic pressing, fixed-length conveying and synchronous cutting of the end strip, relies on manual assistance, and cannot meet the high-speed continuous production requirements of automated production lines.

[0011] Therefore, there is an urgent need for a garbage bag sealing strip fixed-length cutting device that can achieve synchronous conveying and cutting, reliable clamping, adjustable length, and high degree of automation. Summary of the Invention

[0012] This invention provides a fixed-length cutting device for garbage bag sealing strips, which solves the problems mentioned in the background art.

[0013] To achieve the above objectives, the present invention provides the following technical solution:

[0014] A garbage bag sealing strip fixed-length cutting device includes a fixed base. The upper surface of the fixed base is provided with a height adjustment frame mechanism and a conveying drive frame mechanism, which are respectively located at both ends of the fixed base. A bottom conveying mechanism is provided between the height adjustment frame mechanism and the conveying drive frame mechanism. Two symmetrically arranged lifting frame mechanisms are provided between the height adjustment frame mechanism and the conveying drive frame mechanism. A pressing conveying mechanism is provided between the two lifting frame mechanisms. Two linkage mechanisms are provided between the pressing conveying mechanism and the lifting frame mechanism. The linkage mechanisms are connected to a synchronous belt mechanism. Several [unclear - possibly referring to a series of mechanisms] are provided between the two synchronous belt mechanisms. The following mechanisms include a follow-up pressure plate mechanism, a pressing and conveying mechanism equipped with several cutting blade mechanisms, a height adjustment frame mechanism for adjusting the height of the lifting frame mechanism, a conveying drive frame mechanism for driving the bottom conveying mechanism and the pressing and conveying mechanism to work synchronously, a bottom conveying mechanism for placing and conveying materials, a pressing and conveying mechanism for ensuring the pressing and conveying of materials, a linkage mechanism for realizing the linkage between the pressing and conveying mechanism and the synchronous belt mechanism, a synchronous belt mechanism for driving the follow-up pressure plate mechanism to move synchronously with the pressing and conveying mechanism, a follow-up pressure plate mechanism for adjusting the cutting state of the cutting blade mechanism, and the cutting blade mechanism for cutting the materials.

[0015] As a preferred embodiment of the present invention, the height adjustment frame mechanism includes a height adjustment frame fixed on a fixed base. The height adjustment frame has two symmetrically arranged height adjustment slots, which are vertically arranged. The height adjustment frame has a first motor base, and the first motor base has a first motor. The first motor is a double-headed motor. The output shaft of the first motor is fixedly connected to two first rotating shafts. The first rotating shafts are fixedly connected to a first bevel gear. The first bevel gear meshes with a second bevel gear. The second bevel gear is coaxially fixedly connected to a threaded rod. The threaded rod passes through the height adjustment frame, and the lower part of the threaded rod is located in the height adjustment slot.

[0016] As a preferred embodiment of the present invention, the conveying drive frame mechanism includes a drive frame fixed on a fixed base. The drive frame has two symmetrically arranged drive slots, which are vertically arranged. The drive frame has a second motor base, and the second motor base has a second motor. The second motor is a double-headed motor. The output shaft of the second motor is fixedly connected to two second rotating shafts. The second rotating shafts are fixedly connected to a third bevel gear. The third bevel gear meshes with a fourth bevel gear. The fourth bevel gear is coaxially fixedly connected to the third rotating shaft. The third rotating shaft passes through the drive frame, and the lower part of the third rotating shaft is located in the drive slot. A drive bar groove is provided on the side axis of the third rotating shaft.

[0017] As a preferred embodiment of the present invention, the bottom conveying mechanism includes a fourth rotating shaft rotatably connected to a height adjustment frame, the fourth rotating shaft rotatably connected to a bottom support base, the fourth rotating shaft passing through the bottom support base, the fourth rotating shaft coaxially and fixedly connected to a first bottom wheel, the first bottom wheel being drivenly connected to a bottom conveyor belt, the outer side of the bottom conveyor belt being provided with a plurality of equally spaced cutting grooves, the bottom support base rotatably connected to a second bottom wheel, the second bottom wheel being drivenly connected to the bottom conveyor belt, the second bottom wheel coaxially and fixedly connected to a fifth rotating shaft, the fifth rotating shaft passing through a height adjustment frame, the fifth rotating shaft being rotatably connected to the height adjustment frame, the end of the fifth rotating shaft away from the second bottom wheel being fixedly connected to a fifth bevel gear, the fifth bevel gear meshing with a sixth bevel gear, the sixth bevel gear being coaxially and fixedly connected to a third rotating shaft, and the first bottom wheel and the second bottom wheel having the same diameter.

[0018] As a preferred embodiment of the present invention, the lifting frame mechanism includes a first fixed frame and a second fixed frame, with a lifting plate connected between the first and second fixed frames. The first fixed frame is located in a height adjustment groove and is slidably connected to the height adjustment frame. A threaded rod is threadedly connected to the first fixed frame. The second fixed frame is located in a drive bar groove and is slidably connected to the drive frame. The second fixed frame is vertically rotatably connected to a drive sleeve, which passes through the second fixed frame. A third rotating shaft passes through the drive sleeve and is slidably connected to the drive sleeve. A drive bar is fixedly connected to the inner side of the drive sleeve, which is located in the drive bar groove. A seventh bevel gear is coaxially fixedly connected to the drive sleeve, and the seventh bevel gear meshes with an eighth bevel gear.

[0019] As a preferred embodiment of the present invention, the pressing and conveying mechanism includes a sixth rotating shaft rotatably connected to the lifting plate. The sixth rotating shaft passes through the second fixed frame and is coaxially and fixedly connected to the eighth bevel gear. The sixth rotating shaft is fixedly connected to the first upper wheel. The first upper wheel has a plurality of equally spaced first receiving grooves on its side circumferentially. The first upper wheel is driven and connected to a pressing belt. The pressing belt has a plurality of equally spaced follower knife grooves. Mounting holes are provided on the pressing belt at the positions of the follower knife grooves. The spacing between adjacent follower knife grooves is the same as the spacing between adjacent cutting grooves. The follower knife grooves and cutting grooves are vertically corresponding one-to-one. The pressing belt is driven and connected to the second upper wheel. The second upper wheel has a plurality of equally spaced second receiving grooves on its side circumferentially. The spacing between adjacent first receiving grooves is the same as the spacing between adjacent second receiving grooves. The spacing between adjacent first receiving grooves is the same as the spacing between adjacent follower knife grooves. The second upper wheel is coaxially and fixedly connected to a seventh rotating shaft. The seventh rotating shaft is rotatably connected to the lifting plate. The diameters of the first upper wheel and the second upper wheel are the same. The diameters of the first upper wheel and the first bottom wheel are the same.

[0020] As a preferred embodiment of the present invention, the linkage mechanism includes a first synchronous wheel that is coaxially and fixedly connected to the seventh rotating shaft. The first synchronous wheel is driven by a synchronous belt, which is driven by a second synchronous wheel. The second synchronous wheel is coaxially and fixedly connected to an eighth rotating shaft. The eighth rotating shaft is rotatably connected to a lifting plate. The first and second synchronous wheels have the same diameter, and the second synchronous wheel has the same diameter as the first upper wheel.

[0021] As a preferred embodiment of the present invention, the synchronous belt mechanism includes a first follower wheel coaxially and fixedly connected to one of the eighth rotating shafts. The first follower wheel is driven by a follower belt, and the follower belt is driven by a second follower wheel. The second follower wheel is coaxially and fixedly connected to the other eighth rotating shaft. The first follower wheel and the second follower wheel have the same diameter. The first follower wheel has the same diameter as the first upper wheel. The side of the follower belt is provided with a plurality of equally spaced mounting slots. The spacing between adjacent mounting slots is the same as the spacing between adjacent follower tool slots.

[0022] As a preferred embodiment of the present invention, the follow-up pressure plate mechanism includes a pressure plate, both ends of which are fixedly connected to linear motors. The end of the linear motor away from the pressure plate is fixedly connected to a mounting block, and the side of the mounting block is fixedly connected to a plug rod. The diameter of the plug rod is the same as the inner diameter of the mounting slot.

[0023] As a preferred embodiment of the present invention, the cutting blade mechanism includes a mounting slide rod. The cutting blade mechanism is located inside the clamping belt. The diameter of the mounting slide rod is the same as the inner diameter of the mounting hole. The mounting slide rod is fixedly connected to the cutting blade, which is located in the follower blade groove. The end of the mounting slide rod away from the cutting blade is threadedly connected to a threaded fixing plate. The side of the threaded fixing plate near the cutting blade is fixedly connected to an elastic element. The end of the elastic element away from the threaded fixing plate is fixedly connected to a slip ring. The slip ring contacts the inner side of the clamping belt. A first receiving groove is used to receive the threaded fixing plate when it moves onto the first upper wheel. The pressure plate and the threaded fixing plate are correspondingly located in the same vertical position. A shortening linear motor is used to push the pressure plate downwards. The pressure plate is used to push the threaded fixing plate, thereby pushing the cutting blade to cut the material.

[0024] The present invention has the following advantages:

[0025] 1. Synchronous Conveying and Cutting for High Cutting Precision: The conveying drive mechanism uses a dual-head motor to drive the bottom conveying mechanism and the pressing conveying mechanism to operate synchronously, ensuring that the end strip moves smoothly under the clamping of the upper and lower conveyor belts. The linkage mechanism transmits the rotational motion of the pressing conveying mechanism to the synchronous belt mechanism, maintaining a strict relative position between the follower pressure plate mechanism and the cutting blade mechanism. When the follower pressure plate mechanism moves directly above the cutting blade mechanism, the linear motor drives the pressure plate to press down, pushing the cutting blade to extend and cut the end strip. Since the distance between the follower pressure plate mechanism and the cutting blade mechanism is equal to the set cutting length, and the two move synchronously, dynamic fixed-length cutting is achieved during continuous conveying without stopping the conveyor, ensuring precise cutting position and a clean cut.

[0026] 2. Reliable pressing and conveying to prevent material deviation: The bottom conveyor mechanism and the pressing and conveying mechanism are vertically aligned. The pressing belt of the pressing and conveying mechanism presses the sealing strip firmly onto the bottom conveyor belt. The upper and lower belt surfaces move synchronously, effectively preventing the sealing strip from slipping, lifting, or deviating during conveying. The lifting frame mechanism of the pressing and conveying mechanism can be raised and lowered as a whole through the height adjustment frame mechanism to adapt to sealing strips of different thicknesses and ensure moderate pressing force.

[0027] 3. Flexible length adjustment and strong adaptability: The cutting length is determined by the spacing between adjacent follower pressure plate mechanisms, which are connected to the mounting slots on the synchronous belt mechanism via insert rods. These mounting slots are evenly spaced. To change the cutting length, simply select the appropriate number of follower pressure plate mechanisms and insert their insert rods into the corresponding mounting slots to quickly adjust the cutting length. No parts need to be replaced, resulting in short changeover time and adaptability to various production requirements.

[0028] 4. Easy installation and maintenance of the cutting blade: The cutting blade mechanism is inserted into the mounting hole on the pressure band via a mounting slide rod and locked in place by a threaded fixing plate. An elastic element is provided between the threaded fixing plate and the slip ring, ensuring the slip ring always fits against the inner side of the pressure band, guaranteeing the cutting blade retracts into the follower groove when not in operation, thus preventing material abrasion. When the blade needs to be replaced, simply unscrew the threaded fixing plate to remove the mounting slide rod; operation is simple.

[0029] 5. Precise synchronous transmission and compact structure: The linkage mechanism uses synchronous pulleys and synchronous belts to transmit the rotational motion of the pressing and conveying mechanism to the synchronous belt mechanism. The first and second synchronous pulleys have the same diameter, ensuring that the linear speed of the following pressure plate mechanism is completely consistent with the linear speed of the pressing and conveying belt, achieving precise following. The layout of each transmission component is reasonable, with high integration and small space occupation.

[0030] 6. High degree of automation and continuous operation: The entire cutting process is driven by a motor. With the help of sensors and control programs, it can achieve automatic length setting, automatic cutting, and automatic counting. It can be seamlessly connected with upstream and downstream equipment to meet the requirements of high-speed automated production lines. Attached Figure Description

[0031] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0032] Figure 1 This is a first-view structural schematic diagram of a garbage bag sealing strip fixed-length cutting device.

[0033] Figure 2 This is a structural schematic diagram from a second perspective of a garbage bag sealing strip fixed-length cutting device.

[0034] Figure 3 This is a third-view structural schematic diagram of a garbage bag sealing strip fixed-length cutting device.

[0035] Figure 4 This is a schematic diagram of the first partial structure of a garbage bag sealing strip fixed-length cutting device.

[0036] Figure 5 This is a schematic diagram of the second part of a garbage bag sealing strip fixed-length cutting device.

[0037] Figure 6 This is a schematic diagram of the follow-up pressure plate mechanism in a garbage bag sealing strip fixed-length cutting device.

[0038] Figure 7 This is a schematic diagram of the cutting blade mechanism in a garbage bag sealing strip fixed-length cutting device.

[0039] In the diagram: 1. Fixed base; 2. Height adjustment frame mechanism; 201. Height adjustment frame; 202. Height adjustment slot; 203. First motor base; 204. First motor; 205. First rotating shaft; 206. First bevel gear; 207. Second bevel gear; 208. Threaded rod; 3. Conveyor drive frame mechanism; 301. Drive frame; 302. Drive slot; 303. Second motor base; 304. Second motor; 305. Second rotating shaft; 06. Third bevel gear; 307. Fourth bevel gear; 308. Third rotating shaft; 309. Drive groove; 4. Bottom conveyor mechanism; 401. Fourth rotating shaft; 402. Bottom support base; 403. First bottom wheel; 404. Bottom conveyor belt; 405. Cutting groove; 406. Second bottom wheel; 407. Fifth rotating shaft; 408. Fifth bevel gear; 409. Sixth bevel gear; 5. Lifting frame mechanism; 501. First fixed frame; 502. 503. Lifting plate; 504. Second fixed frame; 505. Drive sleeve; 506. Seventh bevel gear; 507. Eighth bevel gear; 608. Pressing and conveying mechanism; 609. Sixth rotating shaft; 6000. First upper wheel; 601. First receiving groove; 602. Pressing belt; 603. Follower knife groove; 604. Second upper wheel; 605. Second receiving groove; 606. Seventh rotating shaft; 707. Linkage mechanism; 701. First synchronous pulley; 702. Synchronous belt; 703. Second synchronous pulley; 704. Eighth rotating shaft; 8. Synchronous belt mechanism; 801. First follower pulley; 802. Follower belt; 803. Second follower pulley; 9. Follower pressure plate mechanism; 901. Pressure plate; 902. Linear motor; 903. Mounting block; 904. Insert rod; 10. Cutting blade mechanism; 1001. Mounting slide rod; 1002. Cutting blade; 1003. Threaded fixing plate; 1004. Elastic element; 1005. Slip ring. Detailed Implementation

[0040] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0041] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0042] For examples, please refer to Figures 1-7A garbage bag sealing strip fixed-length cutting device includes a fixed base 1. The upper surface of the fixed base 1 is provided with a height adjustment frame mechanism 2 and a conveying drive frame mechanism 3, which are respectively located at both ends of the fixed base 1. A bottom conveying mechanism 4 is provided between the height adjustment frame mechanism 2 and the conveying drive frame mechanism 3. Two symmetrically arranged lifting frame mechanisms 5 are provided between the height adjustment frame mechanism 2 and the conveying drive frame mechanism 3. A pressing conveying mechanism 6 is provided between the two lifting frame mechanisms 5. Two linkage mechanisms 7 are provided between the pressing conveying mechanism 6 and the lifting frame mechanisms 5. The linkage mechanisms 7 are connected to a synchronous belt mechanism 8. Several [unclear] are provided between the two synchronous belt mechanisms 8. A follow-up pressure plate mechanism 9 and a pressing conveying mechanism 6 are provided with several cutting blade mechanisms 10; a height adjustment frame mechanism 2 is used to adjust the height of the lifting frame mechanism 5; a conveying drive frame mechanism 3 is used to drive the bottom conveying mechanism 4 and the pressing conveying mechanism 6 to work synchronously; the bottom conveying mechanism 4 is used to place the conveyed material; the pressing conveying mechanism 6 is used to ensure the pressing and conveying of the material; a linkage mechanism 7 is used to realize the linkage between the pressing conveying mechanism 6 and the synchronous belt mechanism 8; the synchronous belt mechanism 8 is used to drive the follow-up pressure plate mechanism 9 to move synchronously with the pressing conveying mechanism 6; the follow-up pressure plate mechanism 9 is used to adjust the cutting state of the cutting blade mechanism 10; and the cutting blade mechanism 10 is used to cut the material.

[0043] The height adjustment frame mechanism 2 includes a height adjustment frame 201 fixed on a fixed base 1. The height adjustment frame 201 has two symmetrically arranged height adjustment slots 202, which are vertically arranged. The height adjustment frame 201 has a first motor base 203, and the first motor base 203 has a first motor 204. The first motor 204 is a double-headed motor. The output shaft of the first motor 204 is fixedly connected to two first rotating shafts 205. The first rotating shafts 205 are fixedly connected to a first bevel gear 206. The first bevel gear 206 meshes with a second bevel gear 207. The second bevel gear 207 is coaxially fixedly connected to a threaded rod 208. The threaded rod 208 passes through the height adjustment frame 201, and the lower part of the threaded rod 208 is located in the height adjustment slot 202.

[0044] The conveying drive frame mechanism 3 includes a drive frame 301 fixed on a fixed base 1. The drive frame 301 has two symmetrically arranged drive slots 302, which are vertically arranged. The drive frame 301 has a second motor base 303, and the second motor base 303 has a second motor 304. The second motor 304 is a double-headed motor. The output shaft of the second motor 304 is fixedly connected to two second rotating shafts 305. The second rotating shafts 305 are fixedly connected to a third bevel gear 306. The third bevel gear 306 meshes with a fourth bevel gear 307. The fourth bevel gear 307 is coaxially fixedly connected to a third rotating shaft 308. The third rotating shaft 308 passes through the drive frame 301. The lower part of the third rotating shaft 308 is located in the drive slot 302. The side axis of the third rotating shaft 308 has a drive groove 309.

[0045] The bottom conveying mechanism 4 includes a fourth rotating shaft 401 rotatably connected to the height adjusting frame 201, a bottom support base 402 rotatably connected to the fourth rotating shaft 401, the fourth rotating shaft 401 passing through the bottom support base 402, a first bottom wheel 403 coaxially fixedly connected to the fourth rotating shaft 401, a bottom conveyor belt 404 being driven by the first bottom wheel 403, a plurality of equally spaced cutting grooves 405 being provided on the outer side of the bottom conveyor belt 404, and a second bottom wheel 406 rotatably connected to the bottom support base 402. The first bottom wheel 403 is connected to the bottom conveyor belt 404. The second bottom wheel 406 is coaxially fixedly connected to the fifth rotating shaft 407. The fifth rotating shaft 407 passes through the height adjustment frame 201 and is rotatably connected to the height adjustment frame 201. The end of the fifth rotating shaft 407 away from the second bottom wheel 406 is fixedly connected to the fifth bevel gear 408. The fifth bevel gear 408 meshes with the sixth bevel gear 409. The sixth bevel gear 409 is coaxially fixedly connected to the third rotating shaft 308. The diameters of the first bottom wheel 403 and the second bottom wheel 406 are the same.

[0046] Specifically, the outer side of the bottom conveyor belt 404 is provided with several equally spaced cutting grooves 405 for accommodating cutting blades.

[0047] The lifting frame mechanism 5 includes a first fixed frame 501 and a second fixed frame 503. A lifting plate 502 is connected between the first fixed frame 501 and the second fixed frame 503. The first fixed frame 501 is located in the height adjustment groove 202. The first fixed frame 501 and the height adjustment frame 201 are slidably connected. A threaded rod 208 is threadedly connected to the first fixed frame 501. The second fixed frame 503 is located in the drive bar groove 309. The second fixed frame 503 and the drive frame 301 are slidably connected. The second fixed frame 503 is vertically rotatably connected to a drive sleeve 504. The drive sleeve 504 passes through the second fixed frame 503. A third rotating shaft 308 passes through the drive sleeve 504. The third rotating shaft 308 and the drive sleeve 504 are slidably connected. A drive bar is fixedly connected to the inner side of the drive sleeve 504. The drive bar is located in the drive bar groove 309. The drive sleeve 504 is coaxially fixedly connected to a seventh bevel gear 505. The seventh bevel gear 505 meshes with an eighth bevel gear 506.

[0048] Specifically, the third rotating shaft 308 passes through the drive sleeve 504 and is slidably connected to the drive sleeve 504. The drive bar is fixedly connected to the inner side of the drive sleeve 504. The drive bar is located in the drive groove 309 of the third rotating shaft 308, so that the drive sleeve 504 can rotate synchronously with the third rotating shaft 308 and slide along the axial direction of the third rotating shaft 308.

[0049] The pressing and conveying mechanism 6 includes a sixth rotating shaft 601 rotatably connected to the lifting plate 502. The sixth rotating shaft 601 passes through the second fixed frame 503. The sixth rotating shaft 601 and the eighth bevel gear 506 are coaxially and fixedly connected. The sixth rotating shaft 601 is fixedly connected to the first upper wheel 602. The side circumferential of the first upper wheel 602 is provided with a plurality of equally spaced first receiving grooves 603. The first upper wheel 602 is drivenly connected to the pressing belt 604. The pressing belt 604 is provided with a plurality of equally spaced follower knife grooves 605. The pressing belt 604 is provided with mounting holes at the positions of the follower knife grooves 605. The spacing between adjacent follower knife grooves 605 is the same as the spacing between adjacent cutting grooves 405. The follower blade groove 605 and the cutting groove 405 are vertically correspondingly arranged. The clamping belt 604 is connected to the second upper wheel 606. The second upper wheel 606 has several equally spaced second receiving grooves 607 on its side circumferentially. The spacing between adjacent first receiving grooves 603 and adjacent second receiving grooves 607 is the same. The spacing between adjacent first receiving grooves 603 and adjacent follower blade grooves 605 is the same. The second upper wheel 606 is coaxially fixedly connected to the seventh rotating shaft 608. The seventh rotating shaft 608 is rotatably connected to the lifting plate 502. The diameters of the first upper wheel 602 and the second upper wheel 606 are the same. The diameters of the first upper wheel 602 and the first bottom wheel 403 are the same.

[0050] The linkage mechanism 7 includes a first synchronous pulley 701 coaxially and fixedly connected to the seventh rotating shaft 608. The first synchronous pulley 701 is driven by a synchronous belt 702, which is driven by a second synchronous pulley 703. The second synchronous pulley 703 is coaxially and fixedly connected to an eighth rotating shaft 704. The eighth rotating shaft 704 is rotatably connected to the lifting plate 502. The first synchronous pulley 701 and the second synchronous pulley 703 have the same diameter, and the second synchronous pulley 703 has the same diameter as the first upper pulley 602.

[0051] The synchronous belt mechanism 8 includes a first follower wheel 801 coaxially fixedly connected to one of the eighth rotating shafts 704. The first follower wheel 801 is driven by a follower belt 802, and the follower belt 802 is driven by a second follower wheel 803. The second follower wheel 803 is coaxially fixedly connected to the other eighth rotating shaft 704. The first follower wheel 801 and the second follower wheel 803 have the same diameter. The first follower wheel 801 has the same diameter as the first upper wheel 602. The side of the follower belt 802 is provided with a plurality of equally spaced mounting slots. The spacing between adjacent mounting slots is the same as the spacing between adjacent follower tool slots 605.

[0052] The follow-up pressure plate mechanism 9 includes a pressure plate 901, with linear motors 902 fixedly connected to both ends of the pressure plate 901. A mounting block 903 is fixedly connected to the end of the linear motor 902 away from the pressure plate 901. A plug rod 904 is fixedly connected to the side of the mounting block 903. The diameter of the plug rod 904 is the same as the inner diameter of the mounting slot.

[0053] Specifically, when the follower belt 802 moves, the follower pressure plate mechanism 9 moves accordingly.

[0054] The cutting blade mechanism 10 includes a mounting slide rod 1001. All cutting blade mechanisms 10 are located inside the clamping band 604. The diameter of the mounting slide rod 1001 is the same as the inner diameter of the mounting hole. The mounting slide rod 1001 is fixedly connected to the cutting blade 1002, which is located within the follower blade groove 605. The end of the mounting slide rod 1001 furthest from the cutting blade 1002 is threadedly connected to a threaded fixing plate 1003. An elastic element 1004 is fixedly connected to the side of the threaded fixing plate 1003 closest to the cutting blade 1002. The end of the component 1004 away from the threaded fixing plate 1003 is fixedly connected to the slip ring 1005. The slip ring 1005 is in contact with the inner side of the clamping band 604. The first receiving groove 603 is used to receive the threaded fixing plate 1003 when it moves onto the first upper wheel 602. The pressure plate 901 and the threaded fixing plate 1003 are in the same vertical position. The shortening linear motor 902 is used to push the pressure plate 901 downward. The pressure plate 901 is used to push the threaded fixing plate 1003, thereby pushing the cutting blade 1002 to cut the material.

[0055] Specifically, the first linear motor 902 shortens, driving the pressure plate 901 to push the threaded fixing plate 1003 downward, compressing the elastic element 1004, causing the cutting blade 1002 to extend downward into the follower blade groove 605, pass through the closing strip, and enter the cutting groove 405 of the bottom conveyor belt 404 to complete the cutting. Subsequently, the first linear motor 902 resets, and the elastic element 1004 pushes the slip ring 1005 to retract the cutting blade 1002.

[0056] The workflow of this invention is as follows:

[0057] Height adjustment: Based on the thickness of the end cap, start the first motor 204, drive the threaded rod 208 to rotate through the bevel gear transmission, so that the first fixed frame 501 and the lifting plate 502 are raised and lowered, adjust the distance between the pressing conveyor 6 and the bottom conveyor 4, so that the pressing belt 604 presses the end cap with appropriate pressure.

[0058] Fixed length setting: Select the appropriate number of follower pressure plate mechanisms 9 according to the required cutting length, and insert their insertion rods 904 into the corresponding intervals of the mounting slots on the follower belt 802.

[0059] Start the conveyor: Start the second motor 304, which drives the sixth shaft 601 and the first upper wheel 602 to rotate via the third rotating shaft 308, drive sleeve 504, seventh bevel gear 505, and eighth bevel gear 506. Simultaneously, it drives the second bottom wheel 406 to rotate via the fifth bevel gear 408 and sixth bevel gear 409. The bottom conveyor belt 404 and the pressing belt 604 move synchronously, clamping and conveying the converging strip forward.

[0060] Linkage and follow-up: The first upper wheel 602 drives the seventh rotating shaft 608 and the first synchronous wheel 701 to rotate, which in turn drives the second synchronous wheel 703 and the eighth rotating shaft 704 to rotate via the synchronous belt 702, thereby driving the first follower wheel 801, the follower belt 802, and the second follower wheel 803 to rotate. The follower pressure plate mechanism 9 and the cutting blade mechanism 10 on the pressure belt 604 maintain relatively stationary synchronous movement.

[0061] Fixed-length cutting: When the follower plate mechanism 9 moves with the follower belt 802 to directly above the cutting blade mechanism 10, the linear motor 902 is activated, the plate 901 presses down, pushing the cutting blade 1002 to extend and cut the end strip, and then quickly returns to its original position. The cutting action is completed instantaneously during continuous conveying.

[0062] Finished product collection: The cut strips are output by the conveyor belt and enter the next process.

[0063] Through the above design, this invention achieves fixed-length, synchronous, and continuous automatic cutting of garbage bag sealing strips, significantly improving production efficiency and cutting quality.

[0064] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A garbage bag sealing strip fixed-length cutting device, comprising a fixed base, characterized in that, The upper surface of the fixed base is provided with a height adjustment frame mechanism and a conveying drive frame mechanism, which are respectively located at both ends of the fixed base. A bottom conveying mechanism is provided between the height adjustment frame mechanism and the conveying drive frame mechanism. Two symmetrically arranged lifting frame mechanisms are provided between the height adjustment frame mechanism and the conveying drive frame mechanism. A pressing conveying mechanism is provided between the two lifting frame mechanisms. Two linkage mechanisms are provided between the pressing conveying mechanism and the lifting frame mechanism. The linkage mechanisms are connected to a synchronous belt mechanism. Several follower pressure plate mechanisms are provided between the two synchronous belt mechanisms. Several cutting blade mechanisms are provided on the pressing conveying mechanism. The height adjustment frame mechanism is used to adjust the height of the lifting frame mechanism. The conveying drive frame mechanism is used to drive the bottom conveying mechanism and the pressing conveying mechanism to work synchronously. The bottom conveying mechanism is used to place the conveyed material. The pressing conveying mechanism is used to ensure the pressing conveying of the material. The linkage mechanism is used to realize the linkage between the pressing conveying mechanism and the synchronous belt mechanism. The synchronous belt mechanism is used to drive the follower pressure plate mechanism to move synchronously with the pressing conveying mechanism. The follower pressure plate mechanism is used to adjust the cutting state of the cutting blade mechanism. The cutting blade mechanism is used to cut the material.

2. The garbage bag sealing strip fixed-length cutting device according to claim 1, characterized in that, The height adjustment frame mechanism includes a height adjustment frame fixed on a fixed base. The height adjustment frame has two symmetrically arranged height adjustment slots, which are vertically arranged. The height adjustment frame has a first motor base, and the first motor base has a first motor. The first motor is a double-headed motor. The output shaft of the first motor is fixedly connected to two first rotating shafts. The first rotating shafts are fixedly connected to a first bevel gear. The first bevel gear meshes with a second bevel gear. The second bevel gear is coaxially fixedly connected to a threaded rod. The threaded rod passes through the height adjustment frame, and the lower part of the threaded rod is located in the height adjustment slot.

3. The garbage bag sealing strip fixed-length cutting device according to claim 2, characterized in that, The conveying drive frame mechanism includes a drive frame fixed on a fixed base. The drive frame has two symmetrically arranged drive slots, which are vertically arranged. The drive frame has a second motor base, and the second motor base has a second motor. The second motor is a double-headed motor. The output shaft of the second motor is fixedly connected to two second rotating shafts. The second rotating shafts are fixedly connected to a third bevel gear. The third bevel gear meshes with a fourth bevel gear. The fourth bevel gear is coaxially fixedly connected to the third rotating shaft. The third rotating shaft passes through the drive frame, and the lower part of the third rotating shaft is located in the drive slot. The side axis of the third rotating shaft has a drive groove.

4. The garbage bag sealing strip fixed-length cutting device according to claim 3, characterized in that, The bottom conveying mechanism includes a fourth rotating shaft rotatably connected to the height adjustment frame, a fourth rotating shaft rotatably connected to a bottom support base, the fourth rotating shaft passing through the bottom support base, a first bottom wheel coaxially fixedly connected to the fourth rotating shaft, the first bottom wheel being driven by the bottom conveyor belt, the outer side of the bottom conveyor belt having several equally spaced cutting grooves, a second bottom wheel rotatably connected to the bottom support base, the second bottom wheel being driven by the bottom conveyor belt, a fifth rotating shaft coaxially fixedly connected to the second bottom wheel, the fifth rotating shaft passing through the height adjustment frame, the fifth rotating shaft being rotatably connected to the height adjustment frame, a fifth bevel gear fixedly connected to the end of the fifth rotating shaft away from the second bottom wheel, the fifth bevel gear meshing with a sixth bevel gear, the sixth bevel gear being coaxially fixedly connected to the third rotating shaft, and the first bottom wheel and the second bottom wheel having the same diameter.

5. The garbage bag sealing strip fixed-length cutting device according to claim 4, characterized in that, The lifting frame mechanism includes a first fixed frame and a second fixed frame, with a lifting plate connected between the first and second fixed frames. The first fixed frame is located in a height adjustment groove and is slidably connected to the height adjustment frame. A threaded rod is threadedly connected to the first fixed frame. The second fixed frame is located in a drive bar groove and is slidably connected to the drive frame. The second fixed frame is vertically rotatably connected to a drive sleeve, which passes through the second fixed frame. A third rotating shaft passes through the drive sleeve and is slidably connected to the drive sleeve. A drive bar is fixedly connected to the inner side of the drive sleeve, which is located in the drive bar groove. A seventh bevel gear is coaxially fixedly connected to the drive sleeve, and the seventh bevel gear meshes with an eighth bevel gear.

6. The garbage bag sealing strip fixed-length cutting device according to claim 5, characterized in that, The pressing and conveying mechanism includes a sixth rotating shaft rotatably connected to the lifting plate. The sixth rotating shaft passes through the second fixed frame and is coaxially and fixedly connected to the eighth bevel gear. The sixth rotating shaft is fixedly connected to the first upper wheel. The first upper wheel has several equally spaced first receiving grooves on its side circumferentially. The first upper wheel is driven and connected to a pressing belt. The pressing belt has several equally spaced follower knife grooves. Mounting holes are provided on the pressing belt at the positions of the follower knife grooves. The spacing between adjacent follower knife grooves is the same as the spacing between adjacent cutting grooves. The follower knife grooves and cutting grooves are vertically corresponding one-to-one. The pressing belt is driven and connected to the second upper wheel. The second upper wheel has several equally spaced second receiving grooves on its side circumferentially. The spacing between adjacent first receiving grooves is the same as the spacing between adjacent second receiving grooves. The spacing between adjacent first receiving grooves is the same as the spacing between adjacent follower knife grooves. The second upper wheel is coaxially and fixedly connected to a seventh rotating shaft. The seventh rotating shaft is rotatably connected to the lifting plate. The diameters of the first upper wheel and the second upper wheel are the same. The diameters of the first upper wheel and the first bottom wheel are the same.

7. The garbage bag sealing strip fixed-length cutting device according to claim 6, characterized in that, The linkage mechanism includes a first synchronous pulley that is coaxially and fixedly connected to the seventh rotating shaft. The first synchronous pulley is driven by a synchronous belt, which is driven by a second synchronous pulley. The second synchronous pulley is coaxially and fixedly connected to an eighth rotating shaft. The eighth rotating shaft is rotatably connected to a lifting plate. The first and second synchronous pulleys have the same diameter, and the second synchronous pulley has the same diameter as the first upper pulley.

8. The garbage bag sealing strip fixed-length cutting device according to claim 7, characterized in that, The synchronous belt mechanism includes a first follower pulley coaxially and fixedly connected to one of the eighth rotating shafts. The first follower pulley is driven by a follower belt, which is driven by a second follower pulley. The second follower pulley is coaxially and fixedly connected to the other eighth rotating shaft. The first and second follower pulleys have the same diameter, and the first follower pulley has the same diameter as the first upper pulley. The side of the follower belt is provided with a plurality of equally spaced mounting slots, and the spacing between adjacent mounting slots is the same as the spacing between adjacent follower tool slots.

9. The garbage bag sealing strip fixed-length cutting device according to claim 8, characterized in that, The follow-up pressure plate mechanism includes a pressure plate, with linear motors fixedly connected to both ends of the pressure plate. A mounting block is fixedly connected to the end of the linear motor away from the pressure plate, and a plug rod is fixedly connected to the side of the mounting block. The diameter of the plug rod is the same as the inner diameter of the mounting slot.

10. The garbage bag sealing strip fixed-length cutting device according to claim 9, characterized in that, The cutting blade mechanism includes a mounting slide rod. The cutting blade mechanism is located inside the clamping belt. The diameter of the mounting slide rod is the same as the inner diameter of the mounting hole. The mounting slide rod is fixedly connected to the cutting blade, which is located in the follower blade groove. The end of the mounting slide rod away from the cutting blade is threadedly connected to a threaded fixing plate. The side of the threaded fixing plate near the cutting blade is fixedly connected to an elastic element. The end of the elastic element away from the threaded fixing plate is fixedly connected to a slip ring. The slip ring is in contact with the inner side of the clamping belt. The first receiving groove is used to receive the threaded fixing plate when it moves onto the first upper wheel. The pressure plate and the threaded fixing plate are correspondingly located in the same vertical position. The shortening linear motor is used to push the pressure plate downward, and the pressure plate is used to push the threaded fixing plate, thereby pushing the cutting blade to cut the material.

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