Sealing device of plastic packaging machine

Abstract

The utility model discloses a sealing device of a plastic packaging machine, which belongs to the technical field of sealing of plastic packaging machines and comprises a sealing frame, two rubber rollers are rotatably connected to the front end of the sealing frame, the sealing device further comprises a cleaning mechanism, the cleaning mechanism comprises two fixing frames arranged at the front end of the sealing frame, rubber sleeves are clamped on the surfaces of the fixing frames, and the rubber sleeves are fixedly connected with the sealing frame. The surface of the rubber sleeve is fixedly connected with annularly-distributed sponges. By means of the mode, through the driving assembly, the liquid injection assembly and the rubber sleeve, the surface of the rubber roller is wiped and cleaned in the rotating process of the multiple sponges, impurities attached to the sponges are scraped away through the scraping plate, the cleanliness of the surfaces of the sponges is guaranteed, and compared with an existing mode that the impurities attached to the sponges are easily attached to the surface of the rubber roller, the cleaning efficiency is improved. According to the mode, the surface of the sponge is cleaned, the rubber roller cleaning effect is guaranteed, and then the sealing effect of a plastic packaging machine on a plastic packaging film is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of sealing technology for plastic sealing machines, and specifically to a sealing device for plastic sealing machines. Background Technology

[0002] The sealing device of a laminating machine works by placing the item to be sealed into the laminating film and then feeding it into the machine's inlet. A rotating rubber roller then rolls the item in. Under the combined action of high temperature and roller pressure, the hot melt adhesive on the inner layer of the laminating film melts, thus adhering tightly to the surface of the item. After cooling, the laminating film firmly seals the item, providing both protection and aesthetic appeal.

[0003] According to the search, the Chinese patent "A heating sealing device for an explosion-proof plastic sealing machine" authorized announcement number "CN214493577U" uses a cylinder to drive a piston to move downward, so that the cleaning liquid inside the connecting pipe flows into the sponge through the cleaning hole. The rotating motor drives the cooled hot pressure roller to rotate, and the plastic residue on the surface of the hot pressure roller is removed by friction, thereby ensuring the cleanliness of the roller surface.

[0004] In the aforementioned application, because the sponge is always in contact with the surface of the hot press roller, the plastic residue attached to the sponge is easily reattached to the surface of the hot press roller during rotation, which in turn affects the sealing effect of the sealing machine on the sealing film.

[0005] Based on this, the present invention designs a sealing device for a plastic sealing machine to solve the above problems. Utility Model Content

[0006] In view of the above-mentioned shortcomings of the existing technology, the present invention provides a sealing device for a plastic sealing machine.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A sealing device for a laminator includes a sealing frame, with two rubber rollers rotatably connected to the front end of the sealing frame, and a cleaning mechanism. The cleaning mechanism includes two fixed frames located at the front end of the sealing frame, with rubber sleeves snapped onto the surface of the fixed frames. A ring of sponges is fixedly connected to the surface of the rubber sleeves. The surface of the sealing frame is provided with a driving component and a liquid injection component. The driving component drives the rubber sleeves to rotate, and the liquid injection component injects cleaning liquid into the sponges. The front end of the sealing frame is provided with two scrapers, with a first spring fixedly connected to the end of each scraper.

[0009] Furthermore, the drive assembly includes two servo motors fixedly connected to the front end of the sealing frame, the output shaft of each servo motor being fixedly connected to a first gear, and the surface of the first gear being meshed with a second gear.

[0010] Furthermore, a locking rod is fixedly connected to the upper surface of the rubber sleeve, and the surface of the locking rod is engaged with the inner wall of the second gear.

[0011] Furthermore, the liquid injection assembly includes a liquid storage cylinder fixedly connected to the top of the sealing frame, a water pump connected to the surface of the liquid storage cylinder, a liquid injection pipe connected to the lower end of the surface of the water pump, and one end of the liquid injection pipe connected to the inner wall of the fixed frame.

[0012] Furthermore, the surface of the fixing frame is provided with several liquid outlet holes, and the surface of the rubber sleeve is provided with annularly distributed through holes.

[0013] Furthermore, a silicone pad is snapped onto the surface of the fixing frame.

[0014] Furthermore, the inner wall of the fixed frame is slidably connected with two connecting rods, the surfaces of which are engaged with the inner wall of the silicone pad.

[0015] Furthermore, a second spring is fixedly connected to one end of the connecting rod.

[0016] Furthermore, the front end of the sealing frame is fixedly connected to two fixing blocks, the surface of the scraper is slidably connected to the inner wall of the fixing blocks, and the end of the first spring is fixedly connected to the end of the fixing blocks.

[0017] Furthermore, the front end of the sealing frame is fixedly connected to two mounting brackets, the surface of the second gear is rotatably connected to the inner wall of the mounting bracket, and the surface of the fixed frame is fixedly connected to the inner wall of the mounting bracket.

[0018] Beneficial effects

[0019] 1. By using the drive assembly, liquid injection assembly, and rubber sleeve, multiple sponges are used to wipe and clean the surface of the rubber roller while rotating. The scraper removes impurities attached to the sponge, ensuring the cleanliness of the sponge surface. Compared with existing sponges where impurities tend to adhere to the rubber roller surface, this method cleans the sponge surface, ensuring the cleaning effect on the rubber roller and thus ensuring the sealing effect of the plastic sealing machine on the plastic film.

[0020] 2. By moving the connecting rod away from the silicone pad, the silicone pad and rubber sleeve are pulled apart, making the rubber sleeve detach from the fixed frame. This makes it easier to remove and install the rubber sleeve from the fixed frame, facilitating sponge cleaning and ensuring the sponge's cleaning effect on the rubber roller. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a perspective view of a sealing device for a plastic sealing machine;

[0023] Figure 2 A perspective view of the drive assembly and liquid injection assembly of a sealing device for a plastic sealing machine;

[0024] Figure 3 A perspective view of the cleaning mechanism of a sealing device for a laminator;

[0025] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0026] The labels in the diagram represent:

[0027] 1. Sealing frame; 2. Rubber roller; 3. Cleaning mechanism; 31. Fixing frame; 32. Rubber sleeve; 33. Sponge; 34. Drive assembly; 341. Second gear; 342. First gear; 343. Servo motor; 35. Liquid injection assembly; 351. Liquid storage tank; 352. Water pump; 353. Liquid injection pipe; 354. Through hole; 355. Liquid outlet; 36. Scraper; 37. First spring; 38. Fixing block; 39. Silicone pad; 310. Clamping rod; 311. Connecting rod; 312. Second spring; 313. Mounting bracket. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0029] The present invention will be further described below with reference to the embodiments.

[0030] In some embodiments, please refer to the appendix to the instruction manual. Figures 1-4A sealing device for a plastic sealing machine includes a sealing frame 1, with two rubber rollers 2 rotatably connected to the front end of the sealing frame 1, and a cleaning mechanism 3. The cleaning mechanism 3 includes two fixed frames 31 located at the front end of the sealing frame 1. A rubber sleeve 32 is snapped onto the surface of the fixed frame 31, and a ring of sponges 33 is fixedly connected to the surface of the rubber sleeve 32. A driving component 34 and a liquid injection component 35 are provided on the surface of the sealing frame 1. The driving component 34 is used to drive the rubber sleeve 32 to rotate, and the liquid injection component 35 is used to inject cleaning liquid into the sponges 33. Two scrapers 36 are provided at the front end of the sealing frame 1, and a first spring 37 is fixedly connected to the end of the scraper 36.

[0031] A laminating machine consists of a drive system, a heating system, a temperature control system, and a pressure system. The drive system includes a motor and a transmission device; the heating system includes a rubber roller 2 and a heating tube; the temperature control system includes a temperature sensor and a temperature controller; and the pressure system includes a pressure roller and a pressure regulating device.

[0032] When sealing the plastic film, the sealing machine is powered on. After the sealing machine is powered on, all its systems are turned on. The heating tubes on the heating system are powered on and heat up, causing the surface temperature of the rubber roller 2 to gradually rise. The item is placed inside the plastic film. After the plastic film is placed into the sealing machine, it comes into contact with the rubber roller 2. The high temperature on the surface of the rubber roller 2 transfers heat to the hot melt adhesive in the inner layer of the plastic film, causing the hot melt adhesive to gradually reach its melting point and begin to melt, thereby tightly bonding the two layers of the plastic film together, thus achieving the wrapping and sealing of the item.

[0033] In this embodiment of the invention, when cleaning the rubber roller 2 is required, after the surface of the rubber roller 2 cools, the rubber roller 2 is driven to rotate. The driving component 34 drives the rubber sleeve 32 to rotate on the surface of the fixed frame 31. The liquid injection component 35 injects cleaning liquid into the sponge 33. The rotation of the rubber sleeve 32 drives multiple sponges 33 to rotate. The rotating sponges 33 wipe the surface of the rubber roller 2 to remove the residue. The elastic force of the first spring 37 pushes the scraper 36 upward, so that the scraper 36 always contacts the surface of the sponge 33. The scraper 36 scrapes the rotating sponge 33, causing the impurities attached to the sponge 33 to fall off. After cleaning for a period of time, the driving component 34 drives multiple sponges 33 to rotate, so that none of the sponges 33 come into contact with the rubber roller 2.

[0034] In this embodiment of the utility model, the drive component 34, the liquid injection component 35 and the rubber sleeve 32 enable multiple sponges 33 to wipe and clean the surface of the rubber roller 2 while rotating. The scraper 36 removes the impurities attached to the sponges 33, ensuring the cleanliness of the sponge 33 surface, ensuring the cleaning effect of the rubber roller 2, and thus ensuring the sealing effect of the sealing machine on the sealing film.

[0035] In some embodiments, such as Figures 2-4As shown, in a preferred embodiment of this utility model, the drive assembly 34 includes two servo motors 343 fixedly connected to the front end of the sealing frame 1. A first gear 342 is fixedly connected to the output shaft of each servo motor 343. A second gear 341 is meshed with the surface of the first gear 342. A locking rod 310 is fixedly connected to the upper surface of the rubber sleeve 32, and the surface of the locking rod 310 engages with the inner wall of the second gear 341. The liquid injection assembly 35 includes a liquid storage cylinder 351 fixedly connected to the top of the sealing frame 1. A water pump 352 is connected to the surface of the liquid storage cylinder 351, and a liquid injection pipe is connected to the lower end of the surface of the water pump 352. 353, one end of the injection tube 353 is connected to the inner wall of the fixed frame 31, the surface of the fixed frame 31 is provided with a plurality of liquid outlet holes 355, the surface of the rubber sleeve 32 is provided with annularly distributed through holes 354, the front end of the sealing frame 1 is fixedly connected with two fixed blocks 38, the surface of the scraper 36 is slidably connected to the inner wall of the fixed block 38, the end of the first spring 37 is fixedly connected to the end of the fixed block 38, the front end of the sealing frame 1 is fixedly connected with two mounting brackets 313, the surface of the second gear 341 is rotatably connected to the inner wall of the mounting bracket 313, and the surface of the fixed frame 31 is fixedly connected to the inner wall of the mounting bracket 313.

[0036] In this embodiment of the invention, the servo motor 343 and water pump 352 are manually turned on. The output shaft of the servo motor 343 rotates, driving the first gear 342 to rotate. The rotation of the first gear 342 drives the second gear 341 to rotate. The rotation of the second gear 341 drives the rubber sleeve 32 to rotate on the surface of the fixed frame 31 via the locking rod 310. The rotation of the rubber sleeve 32 drives multiple sponges 33 to rotate. The water pump 352 draws cleaning fluid from the storage cylinder 351 and flows through the injection pipe 353 into the two fixed frames 31. When the outlet hole 355 connects with one of the through holes 354, the cleaning fluid in the fixed frame 31 flows through the outlet hole 355 and one of the through holes 354 into one of the sponges 33, wetting the sponge 33. The wet sponge 33 then wipes the surface of the rubber roller 2. After cleaning is completed, the servo motor 343 and water pump 352 are manually turned off.

[0037] In this embodiment of the utility model, the simultaneous rotation of multiple sponges 33 is achieved by using a servo motor 343, a first gear 342 and a second gear 341, which avoids impurities from concentrating on one of the sponges 33 and improves the cleaning effect on the surface of the rubber roller 2.

[0038] In some embodiments, such as Figure 4 As shown, in a preferred embodiment of the present invention, a silicone pad 39 is snapped onto the surface of the fixing frame 31, and two connecting rods 311 are slidably connected to the inner wall of the fixing frame 31. The surface of the connecting rods 311 is snapped onto the inner wall of the silicone pad 39, and a second spring 312 is fixedly connected to one end of the connecting rods 311.

[0039] In this embodiment of the utility model, pulling the two connecting rods 311 moves the connecting rods 311 away from the silicone pad 39, and pulling the silicone pad 39 away from the fixed frame 31. At this time, pulling the rubber sleeve 32 moves the locking rod 310 away from the second gear 341, and the rubber sleeve 32 away from the fixed frame 31, thereby cleaning the rubber sleeve 32 and the sponge 33. After cleaning, the rubber sleeve 32 is snapped onto the surface of the fixed frame 31, and the locking rod 310 is snapped into the second gear 341. At this time, the silicone pad 39 is snapped onto the surface of the fixed frame 31. At this time, the elastic force of the second spring 312 pushes the connecting rod 311 to move and snap into the silicone pad 39, thereby making the rubber sleeve 32 stably installed on the fixed frame 31.

[0040] In this embodiment of the utility model, by moving the connecting rod 311 away from the silicone pad 39, the silicone pad 39 and the rubber sleeve 32 are pulled apart, so that the rubber sleeve 32 is detached from the fixed frame 31, making it more convenient to detach and install the rubber sleeve 32 on the fixed frame 31, and making it easier to clean the sponge 33.

[0041] It should be noted that the sealing frame 1, rubber roller 2, sponge 33, servo motor 343 and water pump 352 mentioned above are all components with relatively mature existing technology. The specific models can be selected according to actual needs. At the same time, the sealing frame 1, rubber roller 2, servo motor 343 and water pump 352 can be powered by the built-in power supply or by the mains power. The specific power supply method is selected according to the situation and will not be elaborated here.

[0042] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A sealing device for a plastic sealing machine, comprising a sealing frame (1), wherein two rubber rollers (2) are rotatably connected to the front end of the sealing frame (1), characterized in that: It also includes a cleaning mechanism (3), which includes two fixed frames (31) located at the front end of the sealing frame (1). A rubber sleeve (32) is snapped onto the surface of the fixed frame (31). A ring-shaped sponge (33) is fixedly connected to the surface of the rubber sleeve (32). A driving component (34) and an injection component (35) are provided on the surface of the sealing frame (1). The driving component (34) is used to drive the rubber sleeve (32) to rotate. The injection component (35) is used to inject cleaning liquid into the sponge (33). Two scrapers (36) are provided at the front end of the sealing frame (1). A first spring (37) is fixedly connected to the end of the scraper (36).

2. The sealing device for a plastic sealing machine according to claim 1, characterized in that, The drive assembly (34) includes two servo motors (343) fixedly connected to the front end of the sealing frame (1). The output shaft of the servo motor (343) is fixedly connected to a first gear (342), and the surface of the first gear (342) is meshed with a second gear (341).

3. The sealing device for a plastic sealing machine according to claim 2, characterized in that, A locking rod (310) is fixedly connected to the upper surface of the rubber sleeve (32), and the surface of the locking rod (310) is engaged with the inner wall of the second gear (341).

4. The sealing device for a plastic sealing machine according to claim 1, characterized in that, The liquid injection assembly (35) includes a liquid storage cylinder (351) fixedly connected to the top of the sealing frame (1). A water pump (352) is connected to the surface of the liquid storage cylinder (351). A liquid injection pipe (353) is connected to the lower end of the surface of the water pump (352). One end of the liquid injection pipe (353) is connected to the inner wall of the fixed frame (31).

5. The sealing device for a plastic sealing machine according to claim 1, characterized in that, The surface of the fixed frame (31) is provided with a plurality of liquid outlet holes (355), and the surface of the rubber sleeve (32) is provided with annularly distributed through holes (354).

6. The sealing device for a plastic sealing machine according to claim 1, characterized in that, The surface of the fixing frame (31) is fitted with a silicone pad (39).

7. The sealing device for a laminator according to claim 6, characterized in that, The inner wall of the fixed frame (31) is slidably connected with two connecting rods (311), and the surface of the connecting rods (311) is engaged with the inner wall of the silicone pad (39).

8. The sealing device for a plastic sealing machine according to claim 7, characterized in that, A second spring (312) is fixedly connected to one end of the connecting rod (311).

9. The sealing device for a plastic sealing machine according to claim 1, characterized in that, The sealing frame (1) is fixedly connected to two fixing blocks (38) at its front end. The surface of the scraper (36) is slidably connected to the inner wall of the fixing block (38). The end of the first spring (37) is fixedly connected to the end of the fixing block (38).

10. The sealing device for a plastic sealing machine according to claim 2, characterized in that, The front end of the sealing frame (1) is fixedly connected to two mounting brackets (313), the surface of the second gear (341) is rotatably connected to the inner wall of the mounting bracket (313), and the surface of the fixing frame (31) is fixedly connected to the inner wall of the mounting bracket (313).

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