Dual aperture knife seat mechanism for wet wipe packaging machine

Abstract

The utility model relates to wet tissue packaging machine technical field, and wet tissue packaging machine double opening hole tool holder mechanism includes upper tool rest, lower tool rest, and the upper tool rest includes upper support crossbeam, upper tool holder, and the lower tool rest includes lower support crossbeam, lower tool holder, be equipped with first pneumatic cylinder on the upper support crossbeam, and the piston rod of first pneumatic cylinder is connected with cutting knife, be equipped with second pneumatic cylinder on the upper support crossbeam, and the piston rod of second pneumatic cylinder is connected with tool plate, and tool plate is connected with at least one opening knife, and the upper tool holder has the upper tool hole for the opening knife to move up and down. The utility model discloses wet tissue packaging machine double opening hole tool holder mechanism, designs cutting knife on the upper tool holder, is equipped with opening knife still, drives its action by different pneumatic cylinder respectively, can open two hanging holes while cutting off wet tissue packaging bag by using cutting knife, and the packaging bag of double hanging hole is not easy to pull to break down when using later. Opening knife and cutting knife are integrally arranged, and can complete cutting, opening in one pass, and the structure design is compact.

Description

Technical Field

[0001] This utility model relates to the field of wet wipe packaging machine technology, specifically to a double-hole knife holder mechanism for a wet wipe packaging machine. Background Technology

[0002] The production process of wet wipes generally includes the following key steps: non-woven fabric loading, folding and liquid addition, cross-cutting and stacking, packaging and testing. The packaging process involves a mechanism for cutting into individual small packaging bags. For example, the utility model patent CN210479245 U discloses a knife holder device for wet wipe packaging. The upper and lower knife holders can move in opposite directions under the drive of a transmission belt. When the upper and lower knife holders come into contact, they press and fix the wet wipe packaging bag. Then, an actuating cylinder drives the cutting blade to cut the packaging bag. Another type of wet wipe is for wall hanging, which can be hung on hooks on the wall. This type requires a hanging hole to be made in the wet wipe packaging bag during production. In actual use, it has been found that the hanging hole of the wet wipe packaging bag is easily torn. Utility Model Content

[0003] The purpose of this invention is to provide a double-hole knife holder mechanism for a wet wipe packaging machine, which can open double holes when cutting wet wipe packaging bags.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: The wet wipe packaging machine has a double-hole knife holder mechanism, including an upper knife holder and a lower knife holder. The upper knife holder includes an upper support beam and an upper knife holder, and the lower knife holder includes a lower support beam and a lower knife holder. A first cylinder is provided on the upper support beam, and a cutting knife is connected to the piston rod of the first cylinder. A second cylinder is provided on the upper support beam, and a blade plate is connected to the piston rod of the second cylinder. At least one hole-opening knife is connected to the blade plate. The upper knife holder has an upper knife hole for the hole-opening knife to move up and down.

[0005] Furthermore, the upper tool holder is provided with an upper tool channel for the cutting tool to pass through when moving up and down, and the lower tool holder is provided with a lower tool channel, which is correspondingly arranged with the upper tool channel.

[0006] Furthermore, there are two first cylinders, which are spaced apart along the length of the upper support beam, and the two first cylinders drive the cutting blade together.

[0007] Furthermore, two hole-making knives are provided, which are respectively arranged on the knife plate at intervals to the left and right.

[0008] Furthermore, the punching knife and the cutting knife are spaced apart in the front-to-back direction.

[0009] Furthermore, the piercing cutter is cylindrical, and the lower cutter holder is provided with a lower cutter hole corresponding to the piercing cutter, which is used to make way for the piercing cutter during piercing.

[0010] Furthermore, the upper support beam is provided with a connecting column for detachable connection of the upper tool holder.

[0011] Furthermore, a buffer spring is provided between the lower support beam and the lower tool holder.

[0012] Furthermore, the upper and lower tool posts are each driven by an independent crank-slider mechanism to achieve cyclic movements of the upper and lower tool posts moving towards each other and away from each other.

[0013] Furthermore, the crank-slider mechanism includes a drive shaft, a cam, and a connecting rod. The cam is mounted on the drive shaft, one end of the connecting rod is hinged to the cam, and the other end is hinged to the upper or lower support beam. The drive shafts of the two crank-slider mechanisms are connected by a synchronous belt drive, and one of the drive shafts is the drive shaft.

[0014] The beneficial effects of this utility model are: This utility model relates to a double-hole knife holder mechanism for wet wipe packaging machines. The upper knife holder features both a cutting blade and a hole-opening blade, each driven by a different cylinder. While cutting the wet wipe packaging bag, the cutting blade simultaneously creates two hanging holes. This double-hanging-hole design improves the reliability of the packaging bag during later use, making it less prone to tearing. The integrated design of the hole-opening and cutting blades allows for cutting and hole-opening to be completed in a single process, resulting in a compact structure. Attached Figure Description

[0015] Figure 1 This is a front view of the double-hole knife holder mechanism of the wet wipe packaging machine of this utility model; Figure 2 This utility model relates to a three-dimensional double-hole knife holder mechanism for a wet wipe packaging machine. Figure 1 ; Figure 3 This utility model relates to a three-dimensional double-hole knife holder mechanism for a wet wipe packaging machine. Figure 2 ; Figure 4 yes Figure 3 A partial view within the context.

[0016] 1. Lower tool holder; 11. Lower support beam; 12. Lower tool holder; 2. Upper tool holder; 21. Upper support beam; 22. Upper tool holder; 221. Connecting column; 222. Upper tool hole; 223. Upper tool channel; 31. First cylinder; 32. Second cylinder; 41. Cutting cutter; 42. Hole opener; 51. Upper drive shaft; 52. Upper timing pulley; 53. Upper cam; 54. Upper connecting rod; 61. Lower drive shaft; 62. Lower timing pulley; 63. Lower cam; 64. Lower connecting rod; 7. Slide rail. Detailed Implementation The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model are within the protection scope of the present utility model.

[0017] Embodiments of this utility model: like Figure 1 As shown, the wet wipe packaging machine's double-hole knife holder mechanism includes an upper knife holder 2 and a lower knife holder 1. The upper knife holder 2 includes an upper support beam 21 and an upper knife holder 22, while the lower knife holder 1 includes a lower support beam 11 and a lower knife holder 12. The upper knife holder 22 and the lower knife holder 12 are arranged vertically and can move relative to each other. The gap between them allows the packaged wet wipes to pass through. The coordinated action of the upper knife holder 22 and the lower knife holder 12 enables cutting, forming individual wet wipe packaging bags. Simultaneously, holes are made for hanging the wipes during use.

[0018] The upper support beam 21 is equipped with a first cylinder 31, and the piston rod of the first cylinder 31 is connected to a cutting blade 41. The upper blade holder 22 is provided with an upper blade channel 223 for the cutting blade 41 to pass through when moving up and down. The lower blade holder 12 is provided with a lower blade channel, which is correspondingly set with the upper blade channel 223 to make way for the cutting blade 41 when it performs a downward cutting action.

[0019] Two first cylinders 31 are provided and are spaced apart along the length of the upper support beam 21. The two first cylinders 31 together drive the cutting blade 41 to perform the operation.

[0020] A second cylinder 32 is mounted on the upper support beam 21. The piston rod of the second cylinder 32 is connected to a blade plate, on which two perforating blades 42 are attached, spaced apart on the left and right sides respectively. The two perforating blades 42 are designed to simultaneously create two hanging holes at one end of a package of wet wipes. The second cylinder 32 controls the two perforating blades 42 to operate synchronously.

[0021] The upper knife holder 22 has an upper knife hole 222 for the hole-making knife 42 to move up and down. The hole-making knife 42 is cylindrical, and the lower knife holder 12 has a lower knife hole corresponding to the hole-making knife 42, which is used to make way for the hole-making knife 42 when making a hole. The cylindrical hole-making knife 42 can make a circular hole in the packaging bag. In other embodiments, a hole-making knife with an elliptical cross section, or a trapezoidal or oblong hole, etc., can also be used. In this embodiment, by processing two circular holes in the packaging bag, it can be suspended at two points. After the wet wipe pack is hung, the user is less likely to damage the packaging bag when taking it out (compared to the existing single-hole packaging bag).

[0022] The perforating knife 42 and the cutting knife 41 are spaced apart in the front-to-back direction. The perforated area of ​​the packaging is separate from the packaging cavity area of ​​the wet wipes. The perforation is for the user to hang the wipes later and does not affect the sealing of the packaging cavity.

[0023] In this embodiment, there are two hole-opening knives 42. In other embodiments, if the distance between the two hanging holes is relatively close, the hole-opening knife is designed as a single piece. Although two holes can be opened, it can still be called a single hole-opening knife, which is also within the protection scope of this utility model.

[0024] The upper support beam 21 is equipped with a connecting column 221 for detachable connection to the upper knife holder 22; the two can be connected by screws. The upper knife holder 22 is detachable, and different sizes of upper knife holders 22 can be replaced according to the needs of customers who customize wet wipes, such as changing the length of the upper knife holder 22. Similarly, the lower knife holder 12 is also detachable from the lower support beam.

[0025] A buffer spring (not shown) is provided between the lower support beam 11 and the lower cutter holder 12 to buffer the cutting process. This is a conventional technique and relatively easy to implement. For example, spring placement grooves can be machined on the side where the lower cutter holder 12 and the lower support beam meet, and the spring can be placed in them. Alternatively, the spring can be sleeved on the guide post of the lower cutter holder 12, which is mounted on the lower support beam 11. The end of the guide post can limit the lower cutter holder 12, so that the lower cutter holder 12 moves linearly relative to the lower support beam within a set floating range, thereby achieving buffering.

[0026] The upper tool post 2 and the lower tool post 1 are driven by independent crank-slider mechanisms to realize the cyclic action of the upper tool post 2 moving towards each other and moving away from each other.

[0027] The crank-slider mechanism includes a drive shaft, a cam, and a connecting rod. The cam is mounted on the drive shaft, and one end of the connecting rod is hinged to the cam, while the other end is hinged to the upper support beam 21 or the lower support beam 11. The drive shafts of the two crank-slider mechanisms are connected by a synchronous belt drive, and one of the drive shafts is the driving shaft.

[0028] The specific design is as follows: The crank-slider mechanism driving the upper tool holder 2 includes an upper drive shaft 51, an upper cam 53, and an upper connecting rod 54. The upper cam 53 is mounted on the end of the upper drive shaft 51. One end of the upper connecting rod 54 is hinged to the upper cam 53, and the other end is hinged to the upper support beam 21. The upper support beam 21 is provided with an upper slider, which slides in cooperation with the slide rail 7 set on the frame. The rotational movement of the upper drive shaft 51 can drive the upper support beam 21 to reciprocate linearly. In this embodiment, a set of upper cams 53 and upper connecting rods 54 are designed at both ends of the upper drive shaft 51 to improve the stability and reliability of the movement.

[0029] Two upper synchronous pulleys 52 are spaced apart on the upper drive shaft 51.

[0030] The crank-slider mechanism driving the lower tool holder 1 includes a lower drive shaft 61, a lower cam 63, and a lower connecting rod 64. The lower cam 63 is mounted on the end of the upper drive shaft 51. One end of the lower connecting rod 64 is hinged to the lower cam 63, and the other end is hinged to the lower support beam 11. The lower support beam 11 is provided with a lower slider, which slides in cooperation with the slide rail 7 set on the frame. The rotational movement of the lower drive shaft 61 can drive the lower support beam 11 to reciprocate linearly. In this embodiment, a set of lower cams 63 and lower connecting rods 64 are respectively designed at both ends of the lower drive shaft 61.

[0031] The lower drive shaft 61 is provided with two lower synchronous pulleys 62 spaced apart. The upper synchronous pulleys 52 and the lower synchronous pulleys 62 are engaged with the synchronous belt drive, and there are two sets in total on the left and right sides. The lower drive shaft 61 is the drive shaft, and it is also provided with other pulleys. The motor drives the lower drive shaft 61 to rotate via belt drive.

[0032] The basic principle of the double-hole knife holder mechanism in a wet wipe packaging machine: Driven by a motor, the lower drive shaft 61 rotates and, through the transmission of the lower cam 63 and the lower connecting rod 64, drives the lower support beam 11 to reciprocate linearly (towards or away from the upper support beam 21). The lower tool holder 12 moves with the lower support beam 11. Driven by a synchronous belt, the upper drive shaft 51 rotates synchronously and, through the transmission of the upper cam 53 and the upper connecting rod 54, drives the upper support beam 21 to reciprocate linearly (towards or away from the lower support beam 11). The upper tool holder 22 moves with the upper support beam 21. Therefore, the upper tool holder 22 and the lower tool holder 12 move towards or away from each other. When the wet wipe packaging bag to be cut (using the existing conveying method) passes between the upper knife holder 22 and the lower knife holder 12 at the cutting position, the upper knife holder 22 and the lower knife holder 12 move towards each other to press the area of ​​adjacent packaging bags together. After a slight pause in the conveying, the first cylinder 31 drives the cutting blade 41 to move downwards quickly to cut the packaging bag at the cutting position, forming an independent small packaging bag, which falls to another conveying line. At the same time, the second cylinder 32 operates, using the perforating blade 42 to punch two round holes in the packaging bag. After the cutting is completed, the first and second cylinders reset, and the upper knife holder 22 and the lower knife holder 12 move in opposite directions, waiting for the next cycle, which can cut out another small packaging bag with holes.

[0033] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model 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 this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] 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 double-hole knife holder mechanism for a wet wipe packaging machine, comprising an upper knife holder and a lower knife holder, the upper knife holder comprising an upper support beam and an upper knife holder, the lower knife holder comprising a lower support beam and a lower knife holder, wherein a first cylinder is mounted on the upper support beam, and the piston rod of the first cylinder is connected to a cutting blade, characterized in that: The upper support beam is equipped with a second cylinder, the piston rod of the second cylinder is connected to a blade plate, at least one piercing knife is connected to the blade plate, and the upper knife holder has an upper knife hole for the piercing knife to move up and down.

2. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 1, characterized in that: The upper tool holder is provided with an upper tool channel for the cutting tool to pass through when moving up and down, and the lower tool holder is provided with a lower tool channel, which is correspondingly set with the upper tool channel.

3. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 1, characterized in that: There are two first cylinders, which are spaced apart along the length of the upper support beam, and the two first cylinders drive the cutting blade together.

4. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 1, characterized in that: The hole-opening knife is provided in two parts, which are respectively arranged on the knife plate at intervals on the left and right.

5. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 4, characterized in that: The punching knife and the cutting knife are spaced apart in the front-to-back direction.

6. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 4, characterized in that: The piercing cutter is cylindrical, and the lower cutter holder is provided with a lower cutter hole corresponding to the piercing cutter, which is used to make way for the piercing cutter when piercing.

7. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 1, characterized in that: The upper support beam is equipped with a connecting column for detachable connection of the upper tool holder.

8. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 1, characterized in that: A buffer spring is provided between the lower support beam and the lower tool holder.

9. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 1, characterized in that: The upper and lower tool posts are driven by independent crank-slider mechanisms to achieve cyclic movements of the upper and lower tool posts moving towards each other and away from each other.

10. The double-hole knife holder mechanism for a wet wipe packaging machine according to claim 9, characterized in that: The crank-slider mechanism includes a drive shaft, a cam, and a connecting rod. The cam is mounted on the drive shaft, and one end of the connecting rod is hinged to the cam, while the other end is hinged to the upper or lower support beam. The two drive shafts of the crank-slider mechanism are connected by a synchronous belt drive, and one of the drive shafts is the driving shaft.

Images