Sealing mechanism of wet tissue packaging machine

Abstract

The utility model relates to the technical field of wet tissue packaging equipment, in particular to a sealing mechanism of a wet tissue packaging machine, which comprises a base. A sealing mechanism and a feeding mechanism are arranged at the top end of the base; the sealing mechanism comprises a supporting frame, the supporting frame is fixedly connected to one side of the base, a positioning seat is connected to the supporting frame, the positioning seat is of a hollow structure, a connecting pipe is fixedly connected to the top end of the positioning seat, a piston block is fixedly connected to the tail end of the connecting pipe, and the piston block is sleeved with a piston cylinder; a through hole is formed in the inner side of the positioning seat, and an air inlet hole is formed in the side face of the connecting pipe. Through mutual cooperation of the piston block and the piston cylinder, a small amount of exhausted air can be absorbed by the positioning seat while extrusion exhaust is performed on the package, so that the situation that airflow or liquid is blown to the sealing cover and the adhesive is reduced, and the bonding installation effect of the sealing cover is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of wet wipe packaging equipment, specifically a sealing mechanism for a wet wipe packaging machine. Background Technology

[0002] Wet wipes are moistened tissues used to wipe the skin. Wet wipes on the market can be broadly divided into two categories: one type is sterilized itself but cannot disinfect other items; it contains skin-care ingredients and is only for moisturizing the skin. The other type is disinfecting wipes, which are not only sterilized themselves but also disinfect other items; they can be used to disinfect or sterilize skin abrasions, scratches, etc.

[0003] During the loading process of wet wipes, air is incorporated into the packaging along with the wet wipes. The presence of excess air occupies a lot of space, which increases the space required for subsequent storage and transportation, thus raising transportation and storage costs. Therefore, in order to reduce the air inside the packaging, existing technologies squeeze out the internal air during the sealing process. For example, the utility model disclosed in CN215098430U discloses a sealing mechanism for single-piece packaging of wet wipes. In this solution, a second electric telescopic rod drives the mold to press down onto the packaging box of wet wipes. Gas flows out from the opening of the film pressing cavity in the middle of the mold to provide moisture to the sealing film, making it easier for the sealing film to adhere to the seal of the wet wipes. Then, the first electric telescopic rod drives the pressing block to press down and press the sealing film onto the seal, thereby completing the sealing effect.

[0004] However, existing technologies still have some shortcomings. One issue is that because wet wipes contain a large amount of liquid, the humidity inside the packaging is too high, and a small amount of liquid may even condense near the tear-off opening. When the air inside the packaging is squeezed out, the rapidly flowing air carries the high-humidity air or condensed liquid, blowing the liquid towards the adhesive surface at the bottom of the sealing cap, thus affecting the subsequent adhesion of the sealing cap. Therefore, we propose a sealing mechanism for a wet wipe packaging machine. Utility Model Content

[0005] The purpose of this utility model is to provide a sealing mechanism for a wet wipe packaging machine, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A sealing mechanism for a wet wipe packaging machine includes a base;

[0008] The base is equipped with a sealing mechanism and a guiding mechanism at its top.

[0009] The sealing mechanism includes a support frame, which is fixedly connected to one side of the base. A positioning seat is connected to the support frame. The positioning seat is of a hollow structure. A connecting pipe is fixedly connected to the top of the positioning seat. A piston block is fixedly connected to the end of the connecting pipe. A piston cylinder is sleeved outside the piston block. A through hole is provided inside the positioning seat, and an air inlet hole is provided on the side of the connecting pipe.

[0010] Preferably, the positioning seats are symmetrically connected to the support frame. An installation rod is connected to the top of the positioning seat. The piston cylinder is fixedly connected to the installation rod. An adsorption block is fixedly connected to the end of the installation rod.

[0011] Preferably, transmission rods are fixedly connected to the side of the positioning seat and the side of the installation rod. A transmission frame is sleeved outside the transmission rods. The transmission frame is slidably connected to the transmission rods. A return spring is sleeved outside the transmission rods, and the return spring is connected between the two transmission rods.

[0012] Preferably, a driving frame is fixedly connected to the outside of the transmission frame. A crank is rotatably connected to the side of the support frame. The end of the crank is slidably connected to the inside of the driving frame.

[0013] Preferably, an installation partition is fixedly connected to the middle of the positioning seat. A dehumidifying block is movably connected between the installation partitions. The dehumidifying block is arranged adjacent to the through hole.

[0014] Preferably, the guiding mechanism includes a guiding block, which is fixedly connected to the side of the positioning seat. The guiding block is slidably connected to both sides of the support frame. The inside of the guiding block is of a "C" - shaped structure.

[0015] Preferably, a guiding rod is slidably connected to the side of the piston cylinder. The guiding rod is fixedly connected to the top of the base.

[0016] By means of the above - mentioned technical solution, the present utility model provides a sealing mechanism for a wet tissue packaging machine, which at least has the following beneficial effects:

[0017] (1). By the mutual cooperation of the piston block and the piston cylinder provided in the present utility model, while squeezing and exhausting air from the package, the positioning seat can absorb a small amount of the exhausted air, thereby reducing the air flow or liquid from blowing towards the sealing cover and the adhesive, and thus improving the adhesive installation effect of the sealing cover.

[0018] (2). By the driving - frame structure with an arc - shaped structure provided in the present utility model, when driven by the crank, the sealing cover can be continuously pressed onto the surface of the package, thereby further improving the adhesive installation effect between the sealing cover and the wet tissue. Description of the Drawings

[0019] The drawings described herein are used to provide a further understanding of the present utility model and constitute a part of this application:

[0020] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 4 This is a schematic diagram of the internal structure of the positioning seat of this utility model.

[0024] In the diagram: 1. Base; 2. Sealing mechanism; 201. Support frame; 202. Positioning seat; 203. Mounting rod; 204. Adsorption block; 205. Transmission rod; 206. Return spring; 207. Drive frame; 208. Crank; 209. Connecting pipe; 210. Piston block; 211. Piston cylinder; 212. Through hole; 213. Air inlet; 214. Mounting partition; 215. Dehumidifier block; 216. Transmission frame; 3. Guide mechanism; 301. Guide block; 302. Guide rod. Detailed Implementation

[0025] 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Example 1

[0027] A sealing mechanism for a wet wipe packaging machine, such as Figures 1-4 As shown, it includes a base 1; the top of the base 1 is provided with a sealing mechanism 2, which can seal the easy-tear opening at the top of the wet wipe packaging.

[0028] Specifically, the sealing mechanism 2 includes a support frame 201, which is fixedly connected to one side of the base 1. A positioning seat 202 is connected to the support frame 201, and the positioning seat 202 is symmetrically connected to the support frame 201. The positioning seat 202 can slide up and down on the side of the support frame 201, thereby positioning the wet wipe packaging and squeezing out excess air inside the wet wipes by pressing down on the positioning seat 202, thus preventing the wet wipe packaging from expanding too much and occupying storage space. An installation rod 203 is connected to the top of the positioning seat 202, and an adsorption block 204 is fixedly connected to the end of the installation rod 203. In this embodiment, the adsorption block 204 is a suction cup. The installation rod 203 can adsorb the sealing cap structure on the top of the wet wipe packaging through the adsorption block 204 at its end, thereby facilitating the movement and installation of the sealing cap.

[0029] It is worth noting that a transmission rod 205 is fixedly connected to the side of the positioning seat 202 and the side of the mounting rod 203. A transmission frame 216 is sleeved on the outside of the transmission rod 205, and the transmission frame 216 is slidably connected to the transmission rod 205. A return spring 206 is sleeved on the outside of the transmission rod 205, and the return spring 206 is connected between the two transmission rods 205. The transmission frame 216 can drive the mounting rod 203 or the positioning seat 202 through the transmission rod 205, thereby realizing the step-by-step operation of venting and sealing cover installation. The transmission frame 216 is a rod-shaped structure with a vertical groove in the middle, and the transmission rod 205 is slidably connected inside the groove. By moving the transmission frame 216 to different positions, the positioning seat 202 or the mounting rod 203 can be driven. At the same time, the return spring 206 can move and reset the mounting rod 203 through its own elasticity.

[0030] Furthermore, a drive frame 207 is fixedly connected to the outer side of the transmission frame 216. The center of the drive frame 207 is concave. A crank 208 is rotatably connected to the side of the support frame 201. The end of the crank 208 is slidably connected to the inner side of the drive frame 207. A rotary drive structure is connected to the other side of the crank 208. The rotary drive structure can drive the crank 208 to rotate continuously. A groove is opened on the side of the drive frame 207 and the end of the crank 208 is slidably connected to the inside of the groove. The reciprocating lifting and lowering movement of the drive frame 207 can be realized by the rotation of the crank 208 and the cooperation of the groove on the drive frame 207. At the same time, the middle of the groove is also concave. The arc-shaped concave shape is similar to the trajectory of the end of the crank 208. Therefore, when the crank 208 rotates to near the bottom, the mounting rod 203 can remain stationary at the end for a period of time, thereby improving the adhesion between the sealing cap and the wet wipe packaging.

[0031] On this basis, the positioning seat 202 is of a hollow structure. A connecting pipe 209 is fixedly connected to the top end of the positioning seat 202. A piston block 210 is fixedly connected to the end of the connecting pipe 209. A piston cylinder 211 is sleeved outside the piston block 210. The piston cylinder 211 is fixedly connected to the mounting rod 203. A through hole 212 is formed inside the positioning seat 202. An air inlet hole 213 is formed on the side of the connecting pipe 209. The positioning seat 202 can make the outside of the positioning seat 202 communicate with the inside of the piston cylinder 211 through the through hole 212, and make the piston block 210 move inside the piston cylinder 211 to form a negative pressure through the relative movement between the mounting rod 203 and the positioning seat 202, and suck the air on the side of the through hole 212 into the inside of the positioning seat 202, so as to suck the air inside the wet tissue package into the inside of the positioning seat 202 when squeezing out the air inside the wet tissue package, avoiding that the excessive exhaust humidity or the too fast exhaust air flow blows the water droplets inside the tear notch towards the bottom end of the sealing cover and affecting the adhesion effect of the sealing cover.

[0032] On this basis, a mounting partition 214 is fixedly connected to the middle of the positioning seat 202. A dehumidifying block 215 is movably connected between the mounting partitions 214. The dehumidifying block 215 is arranged adjacent to the through hole 212. The mounting partition 214 can form a mounting compartment inside the positioning seat 202, thus facilitating the installation and placement operation of the dehumidifying block 215, and adsorbing water vapor when absorbing the discharged gas.

[0033] Embodiment 2

[0034] As Figures 1-2 shown, on the basis of Embodiment 1, a guiding mechanism 3 is provided at the top end of the base 1. The guiding mechanism 3 can guide the movement of the sealing mechanism assembly, thus facilitating the bonding and installation operation of the sealing cover.

[0035] In this embodiment, the guiding mechanism 3 includes a guiding block 301. The guiding block 301 is fixedly connected to the side of the positioning seat 202. The guiding block 301 is slidably connected to both sides of the support frame 201. The inner side of the guiding block 301 is of a "匚"-shaped structure. The guiding block 301 of the "匚"-shaped structure can prevent the positioning seat 202 from swinging back and forth during the lifting and lowering movement, and improve the stability of the positioning seat 202.

[0036] In addition, a guiding rod 302 is slidably connected to the side of the piston cylinder 211. The guiding rod 302 is fixedly connected to the top end of the base 1.

[0037] In use, the sealing mechanism of this wet wipe packaging machine operates as follows: First, the crank 208 rotates under the drive of the drive structure, and the drive frame 207 at the end of the crank 208 drives the transmission frame 216 to move downward. During the descent of the transmission frame 216, the transmission rod 205 on the positioning seat 202 is located at the inner bottom end of the transmission frame 216, and the transmission frame 216 supports the transmission rod 205 and the positioning seat 202. Meanwhile, the mounting rod 203 is located at the end away from the positioning seat 202 under the elastic drive of the return spring 206. When the positioning seat 202 moves to the wet wipe packaging bag, the positioning seat 202 is restricted and stops moving. At the same time, the continuing to move mounting rod 203 continues to press the positioning seat 202 under the elasticity of the outer return spring 206, and the positioning seat 202 presses the packaging bag and squeezes out the excess gas inside. Simultaneously, as the mounting rod 203 moves, it approaches the positioning seat 202. The piston block 210 then moves inside the piston cylinder 211, drawing air from inside the positioning seat 202 into the piston cylinder 211. The positioning seat 202 then draws in a small amount of air squeezed out of the packaging bag through the side through-hole 212. The bottom of the squeezed positioning seat 202 contacts the base 1, and its height is similar to the height of the wet wipes inside the packaging bag, preventing the liquid inside the wet wipes from being squeezed out. The continuing movement of the mounting rod 203 then adheres the sealing cap to the packaging bag. The continuously rotating crank 208 then drives the mounting rod 203 and positioning seat 202 upwards until they reach their initial position.

[0038] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0039] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A wet wipe packaging machine sealing mechanism comprising a base (1), characterised in that: The bottom (1) top end is provided with sealing mechanism (2) and guide mechanism (3); The sealing mechanism (2) includes a support frame (201), the support frame (201) is fixedly connected to one side of the base (1), the support frame (201) is connected with a positioning seat (202), the positioning seat (202) is a hollow structure, the positioning seat (202) top end is fixedly connected with a connecting pipe (209), the connecting pipe (209) end is fixedly connected with a piston block (210), the piston block (210) is provided with a piston cylinder (211), the positioning seat (202) is provided with a through hole (212), the connecting pipe (209) side is provided with an air inlet hole (213).

2. A sealing mechanism for a wet wipe packaging machine according to claim 1, characterized in that: The positioning seat (202) is symmetrically connected to the support frame (201), the positioning seat (202) top end is connected with a mounting rod (203), the piston cylinder (211) is fixedly connected to the mounting rod (203), the mounting rod (203) end is fixedly connected with an adsorption block (204).

3. A wet wipe packaging machine sealing mechanism according to claim 2, wherein: The positioning seat (202) side and the mounting rod (203) side are fixedly connected with a transmission rod (205), the transmission rod (205) is provided with a transmission frame (216), the transmission frame (216) and the transmission rod (205) are slidably connected, the transmission rod (205) is provided with a reset spring (206), the reset spring (206) is connected between the two transmission rods (205).

4. A wet wipe packaging machine sealing mechanism according to claim 3, wherein: The transmission frame (216) is fixedly connected with a drive frame (207), the support frame (201) side is rotatably connected with a crank (208), the crank (208) end is slidably connected to the inner side of the drive frame (207).

5. A wet wipe packaging machine sealing mechanism according to claim 1, wherein: The positioning seat (202) is fixedly connected with a mounting partition (214), the mounting partition (214) is movably connected with a dehumidification block (215), the dehumidification block (215) is arranged adjacent to the through hole (212).

6. A wet wipe packaging machine sealing mechanism according to claim 1, wherein: The guide mechanism (3) includes a guide block (301), the guide block (301) is fixedly connected to the side of the positioning seat (202), the guide block (301) is slidably connected to the both sides of the support frame (201), the guide block (301) is a "Fang" type structure.

7. A wet wipe packaging machine sealing mechanism according to claim 1, wherein: The piston cylinder (211) side is slidably connected with a guide rod (302), the guide rod (302) is fixedly connected to the top end of the base (1).

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