High-speed sealing and cutting device

Abstract

The utility model relates to the technical field of edge sealing machines, and discloses a high-speed sealing and cutting device which comprises a rack, a swing shaft is rotationally connected to the rack, a moving structure is arranged on the rack, an upper cross beam and a lower cross beam are arranged on the moving structure, and the swing shaft enables the upper cross beam and the lower cross beam to move oppositely or oppositely through the moving structure. The swing shaft is driven by the motor to rotate, and the rotating speed of the motor is higher than the rotating speed of the swing shaft driven by the air cylinder through the swing arm, so that the moving speed of the upper cross beam and the lower cross beam driven by the swing shaft through the moving structure is increased; and therefore, the motor drives the upper cross beam and the lower cross beam to quickly move back to back or face to face, the packaging bag can be sealed more quickly, and the sealing treatment process of the packaging bag is accelerated.

Description

Technical Field

[0001] The present application relates to the technical field of edge sealing machines, and in particular to a high-speed sealing and cutting device. Background Art

[0002] The edge sealing machine is a device specially used to seal the edge of the product. It is usually used to seal the packaging bags of the product. The edge sealing machine is equipped with a high-speed sealing and cutting device. The high-speed sealing and cutting device can realize the rapid movement of the cutter, allowing the cutter to seal the packaging bag.

[0003] Reference Figure 1 In the related art, a Chinese patent with announcement number CN209241472U discloses a film sealing device of an edge sealing machine, including a driving mechanism, the driving mechanism including a frame 1, a cylinder 3, a swing arm 31, a swing shaft 141, a mobile structure 2, an upper beam 21 and a lower beam 22, the cylinder 3 is arranged on the frame 1, the cylinder 3 is rotatably connected to the swing arm 31, the swing shaft 141 is rotatably connected to the frame 1, the swing arm 31 is fixedly connected to the swing shaft 141, the cylinder 3 drives the swing shaft 141 to rotate by driving the swing arm 31 to rotate, the upper beam 21 and the lower beam 22 are both arranged on the mobile structure 2, and a cutter 23 is provided on the upper beam 21 and the lower beam 22, the swing shaft 141 realizes the upper beam 21 and the lower beam 22 to move toward or away from each other through the mobile structure 2, so as to realize the sealing and cutting of the packaging bag by the cutter 23.

[0004] The cylinder converts the energy of compressed air into piston motion. When the cylinder is started, it needs to compress the air, which causes the movement speed of the cutter driven by the cylinder to be slower, making the sealing process of the packaging bag slower and affecting the sealing process of the packaging bag. Utility Model Content

[0005] In order to improve the slow speed of driving the cutter to move in the sealing and cutting device, the present application provides a high-speed sealing and cutting device.

[0006] The present application provides a high-speed sealing and cutting device, which adopts the following technical solution:

[0007] A high-speed sealing and cutting device comprises a frame, the frame is rotatably connected to a swing shaft, the frame is provided with a moving structure, the moving structure is provided with an upper beam and a lower beam, the swing shaft enables the upper beam and the lower beam to move away from or towards each other through the moving structure, and the frame is provided with a motor, which is used to drive the swing shaft to rotate.

[0008] By adopting the above technical solution, the swing shaft is driven to rotate by a motor. Since the rotation speed of the motor is faster than the speed at which the cylinder drives the swing shaft to rotate through the swing arm, the swing shaft drives the upper beam and the lower beam to move faster through the moving structure, so that the motor drives the upper beam and the lower beam to move quickly away from or towards each other, which can achieve faster sealing of the packaging bag and speed up the sealing process of the packaging bag.

[0009] Optionally, the movable structure includes a transmission gear and two transmission racks, the transmission gear is meshed between the two transmission racks, one of the transmission racks is arranged on the upper beam, and the other transmission rack is arranged on the lower beam, and the transmission gear is arranged on the swing shaft.

[0010] By adopting the above technical solution, the transmission gear is engaged between the two transmission racks, and the transmission gear is located on the swing shaft. When the swing shaft rotates, the two transmission racks can be driven to move through the transmission gear. Since one of the transmission racks is arranged on the upper beam and the other transmission rack is arranged on the lower beam, the upper beam and the lower beam can move away from each other or towards each other.

[0011] Optionally, two fixed plates are provided on the frame, the transmission rack and the transmission gear are both arranged between the two fixed plates, and the fixed plates are provided with fixing parts for limiting the relative movement of the two fixed plates.

[0012] By adopting the above technical solution, the transmission gear and the transmission rack are both located between the two fixed plates, and the fixing parts limit the relative movement of the two fixed plates, so that the fixed plate can limit the transmission gear to prevent the transmission gear from moving along the length direction of the swing shaft, so that the transmission gear can be located between the two transmission racks, so that the transmission gear can stably drive the transmission rack to move.

[0013] Optionally, two first bearings are provided on the swing shaft, the transmission gear is located between the two first bearings, and the first bearings abut against the fixed plate.

[0014] By adopting the above technical solution, the first bearing abuts against the fixed plate, and the transmission gear is located between the two first bearings, so that the transmission gear can abut against the first bearings when rotating, thereby reducing the wear between the transmission gear and the fixed plate and extending the service life of the transmission gear.

[0015] Optionally, the fixing member includes a supporting screw, and the fixing plate is provided with a fixing hole for threaded connection of the supporting screw, and when the supporting screw passes through two fixing holes, the two fixing plates are fixed to each other.

[0016] By adopting the above technical solution, the support screw is threadedly connected to the fixing hole, so that the support screw can be fixed on the fixing plate, allowing the support screw to fix the two fixing plates. The support screw limits the distance between the two fixing plates to ensure that the transmission gear can rotate stably on the swinging shaft.

[0017] Optionally, a support ring is sleeved on the support screw, and two ends of the support ring respectively abut against different fixing plates. When the fixing plates abut against the support rings, the fixing plates restrict the transmission gear from moving along the length direction of the swing shaft.

[0018] By adopting the above technical solution, the two ends of the support ring are respectively abutted against different fixed plates, and the distance between the two fixed plates is the length of the support ring. The staff does not need to pay attention to the distance between the two fixed plates during assembly, so as to avoid the fixed plates losing their restrictive effect on the transmission gear due to the excessive distance between the two fixed plates, so as to facilitate the staff to assemble the support screw and the fixed plate.

[0019] Optionally, two fastening rods are provided on the fixing plate, and the fastening rods abut against a side of the transmission rack away from another transmission rack, and the two fastening rods abut against different transmission racks respectively.

[0020] By adopting the above technical solution, the fastening rod abuts against the side of the transmission rack away from the other transmission rack, and the two fastening rods abut against different transmission racks respectively, so that the fastening rod can restrict the transmission rack and prevent the transmission rack from moving in the direction away from the transmission rack, thereby allowing the transmission rack to stably mesh with the transmission gear.

[0021] Optionally, a second bearing is sleeved on the fastening rod, and the second bearing abuts against the transmission rack.

[0022] By adopting the above technical solution, when the transmission rack moves up and down, the second bearing abuts against the transmission rack, reducing the friction between the transmission rack and the second bearing, so that the transmission rack can move up and down more smoothly. The second bearing is used to reduce the wear on the transmission rack when it moves up and down.

[0023] Optionally, a fastening hole for a fastening rod to pass through is formed on the fixing plate, and the fastening hole extends along the transmission rack toward another transmission rack.

[0024] By adopting the above technical solution, the transmission rack is extended toward another transmission rack, so that the fastening rod can be moved in the fastening hole, and the distance between the two fastening rods can be adjusted by moving the fastening rod, thereby reducing the possibility of the transmission rack not abutting the fastening rod due to the process error of the fastening hole.

[0025] Optionally, a driving gear is fixedly connected to the motor, and a driven gear for meshing with the driving gear is fixedly connected to the swing shaft.

[0026] By adopting the above technical solution, since the driving gear and the driven gear are meshed with each other, the motor drives the driven gear to rotate through the driving gear, and the driven gear is fixedly connected to the swing shaft, the driven gear can drive the swing shaft to rotate, so that the motor does not need to be arranged at both ends of the swing shaft, and the motor and the swing shaft are in the same vertical direction, which reduces the horizontal space occupied by the motor and the swing shaft, makes the sealing and cutting device suitable for smaller side sealing machines, and improves the applicability of the sealing and cutting device.

[0027] In summary, the present application includes at least one of the following beneficial technical effects:

[0028] 1. The swing shaft is driven to rotate by a motor. Since the rotation speed of the motor is faster than that of the swing shaft driven by the cylinder, the swing shaft can quickly move the upper beam and the lower beam through the moving structure, so that the sealing and cutting device can quickly seal the packaging bag and speed up the sealing process of the packaging bag.

[0029] 2. When the swing shaft is rotating, the transmission gear is meshed between the two transmission racks, and the swing shaft can drive the transmission rack to move through the transmission gear. In addition, one transmission rack is set on the upper beam and the other transmission rack is set on the lower beam, so that the upper beam and the lower beam can move away from each other or towards each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a structural schematic diagram of the background technology;

[0031] Figure 2 It is a schematic diagram of the structure of an embodiment of the present application;

[0032] Figure 3 is an exploded schematic diagram highlighting the support screw in an embodiment of the present application;

[0033] Figure 4 It is an exploded schematic diagram highlighting the installation slot in the embodiment of the present application.

[0034] 1. Frame; 11. Support frame; 12. Motor; 121. Driving gear; 13. Planetary reducer; 14. Bearing seat; 141. Swing shaft; 142. Driven gear; 143. First bearing; 15. Mounting plate; 16. Guide rod; 2. Moving structure; 21. Upper beam; 22. Lower beam; 23. Cutter; 24. Transmission gear; 25. Transmission rack; 26. Fixing plate; 261. Mounting groove; 262. Fixing hole; 263. Fastening hole; 27. Fixing piece; 271. Support screw; 272. Support ring; 28. Fastening rod; 281. Second bearing; 3. Cylinder; 31. Swing arm. DETAILED DESCRIPTION

[0035] The following is combined with Figure 2-4 This application is described in further detail.

[0036] This embodiment discloses a high-speed sealing and cutting device. Figure 2 A high-speed sealing and cutting device includes a frame 1, a support frame 11 is fixedly connected to the frame 1, a motor 12 is fixedly connected to the support frame 11, and the motor 12 is a servo motor. A planetary reducer 13 is fixedly connected to the support frame 11, and the motor 12 is connected to the planetary reducer 13. The planetary reducer 13 is used to control the rotation speed of the motor 12.

[0037] Reference Figure 2 , a bearing seat 14 is fixedly connected to the frame 1, and a swing shaft 141 is rotatably connected to the bearing seat 14. A driven gear 142 is fixedly connected to the surface of the swing shaft 141, and a driving gear 121 is fixedly connected to the planetary reducer 13, and the driving gear 121 and the driven gear 142 are meshed with each other. When the motor 12 rotates, the motor 12 drives the driving gear 121 to rotate through the planetary reducer 13, the driving gear 121 drives the driven gear 142 to rotate, and the driven gear 142 drives the swing shaft 141 to rotate. In other embodiments, the motor 12 is rotatably connected to the end surface of the swing shaft 141, that is, the motor 12 directly drives the swing shaft 141 to rotate.

[0038] Reference Figure 2 The frame 1 is provided with an upper crossbeam 21 and a lower crossbeam 22, and two guide rods 16 are fixedly connected to the frame 1, one of the guide rods 16 is located on one side of the upper crossbeam 21 and the lower crossbeam 22, and the other guide rod 16 is located on the other side of the upper crossbeam 21 and the lower crossbeam 22. Both the upper crossbeam 21 and the lower crossbeam 22 pass through the guide rods 16, and both the upper crossbeam 21 and the lower crossbeam 22 move along the length direction of the guide rods 16.

[0039] Reference Figure 2Two moving structures 2 are provided on the frame 1, one of which is located at one end of the swing shaft 141, and the other is located at the other end of the swing shaft 141. One of the moving structures 2 is fixedly connected to one end of the upper crossbeam 21 and the lower crossbeam 22, and the other is fixedly connected to the other end of the upper crossbeam 21 and the lower crossbeam 22. The moving structures 2 can realize the upper crossbeam 21 and the lower crossbeam 22 to move toward or away from each other. The upper crossbeam 21 and the lower crossbeam 22 are both fixedly connected with a cutter 23, and when the two cutters 23 abut against each other, the packaging bag can be cut and heat-sealed.

[0040] Reference Figure 2 and Figure 3 The moving structure 2 includes a transmission gear 24 and two transmission racks 25, and the transmission gear 24 is meshed with the two transmission racks 25. One of the transmission racks 25 is fixedly connected to the upper crossbeam 21, and the other transmission rack 25 is fixedly connected to the lower crossbeam 22. The transmission gear 24 is located between the two transmission racks 25, and the transmission gear 24 is fixedly connected to the outer surface of the swing shaft 141. When the swing shaft 141 rotates, the swing shaft 141 drives the two transmission racks 25 to move through the transmission gear 24, so that the upper crossbeam 21 and the lower crossbeam 22 move, and the cutters 23 abut against each other to achieve the sealing process of the packaging bag.

[0041] Reference Figure 3 Two fixing plates 26 are sleeved on the swing shaft 141, and two mounting plates 15 are threadedly connected on the surface of the frame 1, and the two mounting plates 15 are fixedly connected to one of the fixing plates 26 by bolts. The transmission gear 24 and the two transmission racks 25 are located between the two fixing plates 26, so that the fixing plates 26 limit the movement of the transmission gear 24 and the transmission rack 25 along the length direction of the swing shaft 141.

[0042] Reference Figure 3 and Figure 4 Two first bearings 143 are provided on the swing shaft 141, one of the first bearings 143 abuts against one end of the transmission gear 24, and the other first bearing 143 abuts against the other end of the transmission gear 24. A mounting groove 261 for mounting the first bearing 143 is provided on the surface of the fixing plate 26 facing the other fixing plate 26. When the first bearing 143 is inserted into the mounting groove 261, the contact area between the transmission gear 24 and the surface of the fixing plate 26 is reduced, thereby reducing the wear of the transmission gear 24.

[0043] Reference Figure 3, a fixing member 27 is provided on the fixing plate 26, and the fixing member 27 is used to limit the relative movement of the two fixing plates 26. Four fixing holes 262 are provided on the fixing plate 26, and the four fixing holes 262 are distributed in a rectangular array along the fixing plate 26. The fixing member 27 includes four support screws 271, and the support screws 271 can pass through the fixing holes 262, and the support screws 271 can be threadedly connected with the hole wall of the fixing hole 262. In other embodiments, the fixing member 27 can be a screw, a clamping, a welding or other structure to achieve the mutual fixation of the two fixing plates 26.

[0044] Reference Figure 3 A support ring 272 is fixedly connected to the outer surface of the support screw 271, one end of the support ring 272 abuts against one of the fixing plates 26, and the other end of the support ring 272 abuts against the other fixing plate 26. The length of the support ring 272 is the thickness of the transmission gear 24, so that when the support screw 271 is installed on the two fixing plates 26, it is convenient for the staff to determine the distance between the two fixing plates 26.

[0045] Reference Figure 3 Two fastening rods 28 are provided on the fixing plate 26. A fastening hole 263 is provided on the fixing plate 26 for the fastening rods 28 to pass through. There are two fastening holes 263. The fastening hole 263 extends along the side of the transmission rack 25 toward the transmission gear 24, so that the staff can adjust the distance between the two fastening rods 28. A second bearing 281 for abutting against the transmission rack 25 is sleeved on the fastening rod 28. The second bearing 281 abuts against the side of the transmission rack 25 away from the other transmission rack 25, and the two second bearings 281 abut against different transmission racks 25 respectively. When the transmission rack 25 moves, the transmission rack 25 abuts against the second bearing 281 to reduce the wear on the transmission rack 25.

[0046] The implementation principle of a high-speed sealing and cutting device in an embodiment of the present application is as follows: the motor 12 drives the driving gear 121 to drive the driven gear 142 to rotate, the driven gear 142 drives the swing shaft 141 to rotate, and the transmission gear 24 on the swing shaft 141 drives the upper beam 21 and the lower beam 22 to move away from each other or towards each other through the transmission rack 25.

[0047] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0048] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.

Claims

1. A high-speed sealing and cutting device, comprising a frame (1), the frame (1) being rotatably connected to a swing shaft (141), the frame (1) being provided with a moving structure (2), the moving structure (2) being provided with an upper beam (21) and a lower beam (22), the swing shaft (141) enabling the upper beam (21) and the lower beam (22) to move in opposite directions or towards each other through the moving structure (2), characterized in that: The frame (1) is provided with a motor (12), and the motor (12) is used to drive the swing shaft (141) to rotate.

2. A high-speed sealing and cutting device according to claim 1, characterized in that: The moving structure (2) comprises a transmission gear (24) and two transmission racks (25), wherein the transmission gear (24) is meshed between the two transmission racks (25), wherein one of the transmission racks (25) is arranged on an upper crossbeam (21), and the other transmission rack (25) is arranged on a lower crossbeam (22), and the transmission gear (24) is arranged on a swing shaft (141).

3. A high-speed sealing and cutting device according to claim 2, characterized in that: The frame (1) is provided with two fixed plates (26), the transmission rack (25) and the transmission gear (24) are both arranged between the two fixed plates (26), and the fixed plates (26) are provided with fixing members (27) for limiting the relative movement of the two fixed plates (26).

4. A high-speed sealing and cutting device according to claim 3, characterized in that: Two first bearings (143) are provided on the swing shaft (141), the transmission gear (24) is located between the two first bearings (143), and the first bearing (143) abuts against the fixing plate (26).

5. The high-speed sealing and cutting device according to claim 3, characterized in that: The fixing member (27) comprises a supporting screw rod (271), and the fixing plate (26) is provided with a fixing hole (262) for threaded connection of the supporting screw rod (271). When the supporting screw rod (271) passes through two fixing holes (262), the two fixing plates (26) are fixed to each other.

6. A high-speed sealing and cutting device according to claim 5, characterized in that: A support ring (272) is sleeved on the support screw (271), and two ends of the support ring (272) respectively abut against different fixing plates (26). When the fixing plates (26) abut against the support ring (272), the fixing plates (26) restrict the transmission gear (24) from moving along the length direction of the swing shaft (141).

7. The high-speed sealing and cutting device according to claim 3, characterized in that: Two fastening rods (28) are provided on the fixing plate (26), and the fastening rods (28) abut against a side of the transmission rack (25) away from another transmission rack (25), and the two fastening rods (28) respectively abut against different transmission racks (25).

8. A high-speed sealing and cutting device according to claim 7, characterized in that: The fastening rod (28) is sleeved with a second bearing (281), and the second bearing (281) abuts against the transmission rack (25).

9. The high-speed sealing and cutting device according to claim 7, characterized in that: The fixing plate (26) is provided with a fastening hole (263) for the fastening rod (28) to pass through, and the fastening hole (263) extends along the direction of the transmission rack (25) toward the other transmission rack (25).

10. The high-speed sealing and cutting device according to claim 1, characterized in that: A driving gear (121) is fixedly connected to the motor (12), and a driven gear (142) for meshing with the driving gear (121) is fixedly connected to the swing shaft (141).

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