Slitting device capable of adjusting tension degree in self-adaptive mode

Abstract

The slitting device comprises two supporting plates, a slitting assembly is arranged on one sides of the tops of the two supporting plates, fixing plates are fixedly arranged on the tops of the front faces of the two supporting plates correspondingly, a tensioning adjusting mechanism is arranged between the two fixing plates, and the tensioning adjusting mechanism comprises two connecting plates, two supporting plates and a tensioning mechanism, the top and the bottom are respectively connected between the two fixing plates in a sliding manner; the two tensioning rollers are arranged on the sides, close to the middle of the fixing plate, of the two connecting plates correspondingly. The elastic assembly is arranged between the connecting plate and the tensioning rollers, the two movable blocks are driven to move oppositely through rotation of the two-way lead screw, so that the two tensioning rollers are driven to move oppositely, the distance between the two tensioning rollers is adjusted, and the tensioning degree of the packaging bag between the tensioning rollers is adjusted. The tension roller can have the trend of moving towards the direction of the packaging bag through the elastic force of the spring, so that after the packaging bag is loosened, the tension degree can be adaptively adjusted through the elastic force of the spring, and the stability in the slitting process is ensured.

Description

Technical Field

[0001] The present application relates to the field of medical packaging bags, and particularly to a slitting device with self - adaptive tension adjustment. Background Art

[0002] The medical packaging bag slitting device is an indispensable part in medical device manufacturing enterprises. It is mainly used to slit wide medical packaging bags to meet the requirements of different specifications and quantities. Such devices are usually equipped with advanced control systems to achieve precise cutting and ensure that each packaging bag can meet the medical - grade sealing and safety requirements.

[0003] However, in the process of implementing related technical solutions, it is found that there are at least the following technical problems: when slitting medical packaging bags, conveyor rollers are generally used to transport the packaging bags at one end of the winding mechanism to the slitting position for slitting operations. During the transportation process, the packaging bags are prone to wrinkles due to external forces, resulting in incomplete tension of the packaging bags, so that the packaging bags are offset at the slitting position, affecting the accuracy of slitting. Utility Model Content

[0004] The present application provides a slitting device with self - adaptive tension adjustment, which solves the problem that packaging bags are prone to wrinkles during transportation in the prior art and realizes the self - adaptive adjustment effect of the tension of the packaging bags.

[0005] The present application provides a slitting device with self - adaptive tension adjustment, including two support plates. On one side of the tops of the two support plates, there is a slitting assembly. On the tops of the fronts of the two support plates, fixing plates are fixedly arranged. Between the two fixing plates, there is a tension adjustment mechanism. The tension adjustment mechanism includes: two connecting plates, which are respectively slidably connected to the top and bottom between the two fixing plates; two tension rollers, which are respectively arranged on one side of the two connecting plates close to the middle of the fixing plates; an elastic component, which is arranged between the connecting plate and the tension roller, and the elastic component is used to drive the tension roller to have a tendency to move towards the middle of the fixing plate.

[0006] Furthermore, grooves are respectively opened in the middle of the inner sides of the two fixing plates, and an adjustment component is arranged inside the two fixing plates. The adjustment component includes: two bidirectional lead screws, which are rotatably connected inside the two grooves; a movable block, which is sleeved and threadedly connected to the outside of the bidirectional lead screw; two connecting rods, which are respectively fixedly arranged at one ends of the two movable blocks, and the other ends of the two connecting rods are respectively fixedly connected to the two connecting plates.

[0007] Furthermore, connection seats are fixedly arranged on the front surfaces of the two fixing plates. A driving component is arranged inside the connection seats. The driving component includes: two rotating shafts fixedly arranged at one end of the bidirectional lead screw; a sprocket rotatably connected inside the connection seat, and one end of the rotating shaft is fixedly connected to the sprocket; a chain meshingly connected to the outer sides of the two sprockets; a reduction motor fixedly installed inside the fixing plate, and the output shaft of the reduction motor is fixedly connected to one of the sprockets.

[0008] Furthermore, the elastic component includes: a plurality of fixing rods fixedly arranged on one side of the connecting plate close to the middle of the fixing plate, and the plurality of fixing rods are arranged equidistantly and parallelly on one side of the connecting plate; an extension rod inserted and connected to one side of the fixing rod, and one end of the extension rod is fixedly connected to the tensioning roller.

[0009] Furthermore, a spring is sleeved on the outer side of the extension rod, and two ends of the spring are respectively fixedly connected to the fixing rod and the tensioning roller.

[0010] The technical solution provided by this application has at least the following technical effects or advantages:

[0011] By rotating the bidirectional lead screw to drive the two movable blocks to move towards each other, thereby driving the two tensioning rollers to move towards each other, adjusting the distance between the two tensioning rollers, and thus adjusting the tension of the packaging bag between the tensioning rollers. Due to the elastic force of the spring, the tensioning roller has a tendency to move towards the packaging bag. When the packaging bag becomes loose, the elastic force of the spring can increase the tension, thereby adjusting the tension adaptively and ensuring the stability during the slitting process. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic diagram of the overall structure of the slitting device in an embodiment of this application;

[0013] Figure 2 is a schematic diagram of the structure of the tension adjustment assembly in an embodiment of this application;

[0014] Figure 3 is a schematic plan view of the tension adjustment assembly in an embodiment of this application;

[0015] In the figure: 10, support plate; 20, slitting assembly; 30, fixing plate; 40, connection seat; 50, groove; 60, tension adjustment mechanism; 61, connecting plate; 62, tensioning roller; 63, adjustment assembly; 64, elastic component; 631, bidirectional lead screw; 632, movable block; 633, connecting rod; 634, driving component; 6341, rotating shaft; 6342, sprocket; 6343, chain; 6344, reduction motor; 641, fixing rod; 642, extension rod; 643, spring. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0016] An embodiment of the present application discloses a slitting device with adaptive tension adjustment. Through the synchronous rotation of two bidirectional lead screws 631, the movable block 632 drives two tension rollers 62 to move towards each other, adjusting the tension of the packaging bag. The elasticity of the spring 643 drives the pressing of the tension roller 62, enabling the tension of the packaging bag to be adaptively adjusted after it becomes loose.

[0017] To better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the specification drawings and specific embodiments.

[0018] Please refer to Figure 1 , this embodiment provides a slitting device with adaptive tension adjustment, including two support plates 10. A conveyor roller is arranged between the two support plates 10. A slitting component 20 is arranged on one side of the tops of the two support plates 10. The conveyor roller drives the packaging bag to the bottom of the slitting component 20 for slitting work. Fixed plates 30 are fixedly arranged on the tops of the fronts of the two support plates 10. A tension adjustment mechanism 60 is arranged between the two fixed plates 30. The tension adjustment mechanism 60 includes a connecting plate 61, tension rollers 62, an adjustment component 63, and an elastic component 64. The two connecting plates 61 are respectively slidably connected to the top and bottom between the two fixed plates 30. The two tension rollers 62 are respectively arranged on one side of the two connecting plates 61 close to the middle of the fixed plates 30. The two tension rollers 62 are respectively arranged on the top and bottom between the two fixed plates 30. The adjustment component 63 is arranged inside the fixed plate 30, and the adjustment component 63 is used to drive the two tension rollers 62 to move towards each other. The elastic component 64 is arranged between the connecting plate 61 and the tension roller 62, and the elastic component 64 is used to drive the tension roller 62 to have a tendency to move towards the middle of the fixed plate 30. By arranging the packaging bag between the two tension rollers 62, the two tension rollers 62 tighten the packaging bag, preventing the packaging bag from becoming loose and affecting the slitting effect. By driving the two tension rollers 62 to move towards each other through the adjustment component 63, the tension of the packaging bag is adjusted. When the packaging bag becomes loose, the tension roller 62 can move accordingly to drive the packaging bag to be tightened, thereby adaptively adjusting the tension.

[0019] Please refer to Figure 1 、 Figure 2 and Figure 3, grooves 50 are provided in the middle of the inner sides of the two fixing plates 30. An adjusting assembly 63 is arranged inside the two fixing plates 30. The adjusting assembly 63 includes a bidirectional lead screw 631, movable blocks 632, connecting rods 633, and a driving component 634. The two bidirectional lead screws 631 are rotatably connected inside the two grooves 50. The movable blocks 632 are sleeved and threadedly connected to the outer sides of the bidirectional lead screws 631. One ends of the two connecting rods 633 are respectively fixedly arranged on the two movable blocks 632, and the other ends of the two connecting rods 633 are respectively fixedly connected to the two connecting plates 61. The connecting rods 633 connected to different tension rollers 62 face different directions, so that the two tension rollers 62 are respectively arranged at the top and bottom between the two fixing plates 30. Connecting seats 40 are fixedly arranged on the fronts of the two fixing plates 30. The driving component 634 is arranged inside the connecting seats 40. The driving component 634 includes a rotating shaft 6341, sprockets 6342, a chain 6343, and a reduction motor 6344. The two rotating shafts 6341 are fixedly arranged at one ends of the bidirectional lead screws 631. The sprockets 6342 are rotatably connected inside the connecting seats 40, and one end of the rotating shaft 6341 is fixedly connected to the sprockets 6342. The chain 6343 is meshed and connected to the outer sides of the two sprockets 6342. The reduction motor 6344 is fixedly installed inside the fixing plate 30, and the output shaft of the reduction motor 6344 is fixedly connected to one of the sprockets 6342. Through the meshing of the chain 6343 with the two sprockets 6342, the reduction motor 6344 can drive the two bidirectional lead screws 631 to rotate synchronously. The rotation of the bidirectional lead screws 631 causes the two movable blocks 632 threadedly connected thereto to move towards each other, so that the two connecting plates 61 at one ends of the connecting rods 633 move towards each other, thereby changing the distance between the two tension rollers 62 on one side of the two connecting plates 61, and changing the tension degree of the packaging bag between the two tension rollers 62.

[0020] Please refer to Figure 1 , Figure 2 and Figure 3, the elastic component 64 includes a fixed rod 641, an extension rod 642, and a spring 643. A plurality of fixed rods 641 are fixedly arranged on one side of the connecting plate 61 close to the middle of the fixed plate 30, and the plurality of fixed rods 641 are arranged equidistantly and parallelly on one side of the connecting plate 61. The extension rod 642 is inserted and connected to one side of the fixed rod 641, and one end of the extension rod 642 is fixedly connected to the tension roller 62. The spring 643 is sleeved on the outside of the extension rod 642, and both ends of the spring 643 are fixedly connected to the fixed rod 641 and the tension roller 62 respectively. Through the elastic force of the spring 643 on the outside of the extension rod 642 and the insertion of the extension rod 642 on the fixed rod 641, the two tension rollers 62 tend to move towards the middle of the fixed plate 30. After the originally tensioned packaging bag becomes loose, the elastic force of the spring 643 can drive the two tension rollers 62 to move, thereby changing the distance between the two tension rollers 62, making the packaging bag become tensioned again, performing adaptive adjustment on the packaging bag, improving the accuracy of the slitting device. The elastic force of the spring 643 can also continue to adjust the tension when the movable blocks 632 on both sides are misaligned due to errors and cannot move, improving the applicability of the device.

[0021] The functional principle of this application can be elaborated through the following operation methods:

[0022] During use, the packaging bag wound by an external winding mechanism is placed on the conveying roller after passing through between the two tension rollers 62. The deceleration motor 6344 is started, so that the output shaft of the deceleration motor 6344 drives a sprocket 6342 to rotate, causing the chain 6343 meshed with the outside of the sprocket 6342 to rotate accordingly. The rotation of the chain 6343 drives another sprocket 6342 meshed with the inside to rotate, so that the two sprockets 6342 rotate synchronously. Through the rotating shaft 6341, the two lead screws 631 rotate synchronously, so that the two movable blocks 632 on the outside of the lead screws 631 can move towards each other, thereby driving the connecting plate 61 at one end of the connecting rod 633 to move towards each other, changing the distance between the two tension rollers 62, making the two tension rollers 62 move towards the direction of the packaging bag in the middle of the fixed plate 30, so that the two tension rollers 62 come into contact with both sides of the packaging bag. The continuous rotation of the lead screw 631 causes the tension roller 62 to continue to move, making the tension roller 62 closely adhere to the packaging bag. The pressure of the packaging bag on the tension roller 62 causes the extension rod 642 to retract into the fixed rod 641, compressing the spring 643. After the packaging bag is completely tensioned, the deceleration motor 6344 is stopped. When the packaging bag becomes loose due to external force, the elastic force of the compressed spring 643 drives the tension roller 62 to move towards the packaging bag, reducing the distance between the two tension rollers 62, so that the packaging bag is tensioned again, performing adaptive adjustment on the packaging bag, making the packaging bag more accurate during slitting.

[0023] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Thus, if these modifications and variations of this application fall within the scope of the claims of this application and their equivalent technologies, this application is also intended to cover these modifications and variations.

[0024] The above are only the preferred specific embodiments of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application, according to the technical solutions and concepts of this application, makes equivalent substitutions or changes, and should be covered within the protection scope of this application.

Claims

1. A slitting device with adaptive tension adjustment, comprising two support plates (10), characterized in that, On one side of the tops of the two support plates (10), a slitting assembly (20) is provided. On the tops of the fronts of the two support plates (10), fixing plates (30) are fixedly arranged. Between the two fixing plates (30), a tension adjusting mechanism (60) is arranged. The tension adjusting mechanism (60) includes: Two connecting plates (61), which are respectively slidably connected to the top and bottom between the two fixing plates (30); Two tension rollers (62), which are respectively arranged on one side of the two connecting plates (61) close to the middle of the fixing plates (30); An elastic component (64), which is arranged between the connecting plate (61) and the tension roller (62), and the elastic component (64) is used to drive the tension roller (62) to have a tendency to move towards the middle of the fixing plate (30).

2. The slitting device with self - adaptive tension adjustment as claimed in claim 1, wherein, In the middle of the inner sides of the two fixing plates (30), grooves (50) are respectively formed. Inside the two fixing plates (30), an adjusting component (63) is arranged. The adjusting component (63) includes: Two bidirectional lead screws (631), which are rotatably connected inside the two grooves (50); A movable block (632), which is sleeved and threadedly connected to the outer side of the bidirectional lead screw (631); Two connecting rods (633), which are respectively fixedly arranged at one ends of the two movable blocks (632), and the other ends of the two connecting rods (633) are respectively fixedly connected to the two connecting plates (61).

3. The slitting device for adaptively adjusting the tension according to claim 2, wherein On the front of the two fixing plates (30), a connecting seat (40) is fixedly arranged. Inside the connecting seat (40), a driving component (634) is arranged. The driving component (634) includes: Two rotating shafts (6341), which are fixedly arranged at one ends of the bidirectional lead screws (631); A sprocket (6342), which is rotatably connected inside the connecting seat (40), and one end of the rotating shaft (6341) is fixedly connected to the sprocket (6342); A chain (6343), which is meshed and connected to the outer sides of the two sprockets (6342); A reduction motor (6344), which is fixedly installed inside the fixing plate (30), and the output shaft of the reduction motor (6344) is fixedly connected to one of the sprockets (6342).

4. An adaptive tension-adjusting slitting device according to claim 1, characterized in that, The elastic component (64) includes: A plurality of fixing rods (641), which are fixedly arranged on one side of the connecting plate (61) close to the middle of the fixing plate (30), and the plurality of fixing rods (641) are arranged equidistantly and parallelly on one side of the connecting plate (61); An extension rod (642), which is inserted and connected to one side of the fixing rod (641), and one end of the extension rod (642) is fixedly connected to the tension roller (62).

5. An adaptive tension-adjusting slitting device according to claim 4, wherein, A spring (643) is sleeved on the outer side of the extension rod (642), and the two ends of the spring (643) are respectively fixedly connected to the fixing rod (641) and the tension roller (62).

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