A servo box closing mechanism

Abstract

A kind of follow-up sealing box mechanism, including guide rod and follow-up tongue folding assembly in turn, guide rod is used to guide the upper tongue of packaging box to bend down to fold tongue, follow-up tongue folding assembly includes driving synchronous pulley, first driven synchronous pulley, second driven synchronous pulley, first O-type belt, second O-type belt, transmission shaft and driving member, driving member is driven connection with transmission shaft, driving synchronous pulley is installed on transmission shaft, driving synchronous pulley is half-cross transmission connection with first driven synchronous pulley by the first O-type belt, first O-type belt is contacted with the outer surface of packaging box lower tongue and runs obliquely upwards along the conveying direction, guide lower tongue to bend upwards to fold tongue, first driven synchronous pulley is open transmission connection with second driven synchronous pulley by the second O-type belt, and the second O-type belt is used to follow-up and press the lower tongue of packaging box.The utility model can realize folding tongue and sealing box when packaging box runs, can improve packaging quality, also ingenious and simple as a whole structure, easy to implement.

Description

Technical Field

[0001] This utility model relates to the field of packaging equipment technology, and in particular to a follow-up sealing mechanism. Background Technology

[0002] On the carton production line, after the product is pushed into the packaging box, the box needs to be sealed. There are several sealing methods. One method is to bend the side flaps, then bend the lid, and then insert the tongue into the edge seam. Another method is to bend the left and right side flaps, then bend the front and back side flaps, and seal the box with pre-applied hot melt adhesive. For hot melt adhesive sealing, the lid is usually bent and overlapped on the inner flap using guide rods or guide plates, and then the hot melt adhesive is used for bonding. However, in this method, the guide rods or guide plates are fixed, and friction occurs between them as the packaging box moves along the conveyor line, causing damage to the box surface and affecting the packaging quality. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a follow-up sealing mechanism that can follow up with the flap and seal the box.

[0004] This utility model is achieved through the following technical solution:

[0005] A follow-up sealing mechanism, with a front end connecting to a flap folding mechanism and a glue dispensing mechanism, includes a guide rod and a follow-up flap folding assembly sequentially arranged beside a box conveyor line. The guide rod is located at the front end of the follow-up flap folding assembly. The box conveyor line is used to convey packaging boxes with flaps folded on both sides. The inner side of the lower flap has been glued. The height of the front end of the guide rod is higher than the horizontal height of the upper flap. Its rear end bends downward along the conveying direction of the box conveyor line and extends to connect with the follow-up flap folding assembly. The guide rod is used to guide the upper flap of the packaging box to bend downward to fold the flap. The follow-up flap folding assembly includes a driving synchronous pulley, a first driven synchronous pulley, a second driven synchronous pulley, a first O-belt, a second O-belt, a drive shaft, and a drive component. The drive shaft is horizontally arranged and its axis is perpendicular to the conveying direction of the box conveyor line. The drive component is drivenly connected to the drive shaft to drive the drive shaft to rotate. The driving synchronous pulley is mounted on... On the drive shaft, the first driven synchronous pulley and the second driven synchronous pulley are vertically arranged at the rear end of the driving synchronous pulley. The driving synchronous pulley and the first driven synchronous pulley are connected by a semi-cross transmission of the first O-belt. The driving component drives the drive shaft and the driving synchronous pulley to rotate. The driving synchronous pulley drives the first O-belt to run. The side of the first O-belt near the box conveyor line can contact the outer surface of the lower tongue of the packaging box and run obliquely upward along the conveying direction of the box conveyor line, guiding the lower tongue to bend upward to fold the tongue. The first driven synchronous pulley and the second driven synchronous pulley are connected by a transmission through the opening of the second O-belt. The first driven synchronous pulley drives the second O-belt to run. The side of the second O-belt facing the packaging box can contact the outer surface of the lower tongue after folding the tongue and is consistent with the conveying direction of the box conveyor line, so as to press the lower tongue of the packaging box to facilitate the bonding of hot melt adhesive under pressure.

[0006] Furthermore, both the driving synchronous pulley and the first driven synchronous pulley are provided with several parallel grooves for fitting the first O-belts. Several first O-belts are fitted between the driving synchronous pulley and the first driven synchronous pulley. The first O-belt on the driving synchronous pulley that is closest to the box conveyor line is wrapped around the bottom of the first driven synchronous pulley, and the first O-belt on the driving synchronous pulley that is farthest from the box conveyor line is wrapped around the top of the first driven synchronous pulley. This makes the side of the several first O-belts that is close to the box conveyor line have an upward slant, so that the bottom tongue of the packaging box can be gradually folded upward under the guidance of the first O-belts until the box is completely sealed.

[0007] Furthermore, both the first driven synchronous pulley and the second driven synchronous pulley are provided with several parallel grooves for fitting the second O-belt. Several second O-belts are fitted parallel between the first driven synchronous pulley and the second driven synchronous pulley, so that uniform pressure can be applied to the folded lower tongue.

[0008] Furthermore, the driving component includes a servo motor, a driving bevel gear, and a driven bevel gear. The servo motor is vertically arranged, the driving bevel gear is driven and connected to the servo motor, the driven bevel gear meshes with the driving bevel gear, and the driven bevel gear is mounted on the transmission shaft.

[0009] Furthermore, the drive shaft is horizontally mounted on a bearing housing via bearings.

[0010] Furthermore, the guide rod and the follower flap assembly each have two sets respectively arranged on both sides of the box conveyor line, used to seal both sides of the packaging box respectively.

[0011] Furthermore, the guide rod is mounted on an adjustable lifting bracket, which is fixed to the machine frame. The adjustable lifting bracket includes a support frame, a lead screw and nut assembly, an adjusting handwheel, and a connecting plate. The lead screw and nut assembly is vertically mounted on the support frame. The adjusting handwheel is connected to the lead screw of the lead screw and nut assembly. One end of the connecting plate is connected to the drive nut of the lead screw and nut assembly. The guide rod is connected to the other end of the connecting plate. By adjusting the handwheel, the lead screw is driven to rotate, causing the drive nut and the connecting plate to move up and down along the lead screw, thereby adjusting the height of the guide rod to accommodate packaging boxes of different heights.

[0012] This invention features a guide rod and a follower-type flap assembly, which respectively bend the upper and lower flaps of the packaging box inward, pressing the lower flap firmly onto the upper flap, and sealing the box with hot melt adhesive. The structural design of the follower-type flap assembly allows it to move synchronously with the box body, preventing friction damage to the outer surface of the box and improving packaging quality. The semi-cross transmission structure of the active synchronous pulley, the first driven synchronous pulley, and the first O-belt allows the first O-belt to not only transmit power but also gradually move upward, facilitating the lifting of the lower flap and achieving the flap folding purpose. The second driven synchronous pulley and the second O-belt allow the bent lower flap to be further pressed onto the upper flap under the action of the second O-belt, resulting in better hot melt adhesive adhesion. The second O-belt is driven by the first driven synchronous pulley and shares the same drive with the first O-belt, saving power, simplifying the structure, and the overall structure is ingenious, simple, and easy to implement. Attached Figure Description

[0013] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model.

[0014] Figure 2 This is a partial enlarged structural schematic diagram of an embodiment of the present utility model.

[0015] Figure 3 This is a schematic diagram illustrating the state changes of the packaging box in an embodiment of this utility model.

[0016] Reference numerals: 1-Frame; 2-Packaging box; 3-Guide rod; 4-Follower folding tongue assembly; 5-Adjustable lifting bracket; 6-Box conveyor line; 21-Upper tongue; 22-Lower tongue; 41-Drive component; 42-Driven synchronous pulley; 43-First driven synchronous pulley; 44-Second driven synchronous pulley; 45-First O-belt; 46-Second O-belt; 47-Drive shaft; 48-Bearing seat; 411-Servo motor; 412-Driven bevel gear; 413-Driven bevel gear; 51-Support frame; 52-Screw and nut assembly; 53-Adjusting handwheel; 54-Connecting plate. Detailed Implementation

[0017] A follow-up sealing mechanism includes a flap folding mechanism at the front end for folding the left and right flaps of the packaging box 2, and a glue dispensing mechanism for dispensing glue onto the inner surface of the lower flap 22, such as... Figures 1 to 3 As shown, the follow-up sealing mechanism includes a guide rod 3 and a follow-up folding tongue assembly 4 arranged sequentially beside the box body conveyor line 6. The guide rod 3 is located at the front end of the follow-up folding tongue assembly 4. The box body conveyor line 6 is used to convey the packaging boxes 2 with folded tongues on the left and right sides. The inner side of the lower tongue 22 has been glued. The guide rod 3 gradually bends downward along the conveying direction of the box body conveyor line 6 and extends to the follow-up folding tongue assembly 4, connecting with the follow-up folding tongue assembly 4. The height of its front end is higher than the horizontal height of the upper tongue 21. The guide rod 3 is used to guide the upper tongue 21 of the packaging box 2 to bend downward to fold the tongue.

[0018] The follower-type folding tongue assembly 4 includes a driving synchronous pulley 42, a first driven synchronous pulley 43, a second driven synchronous pulley 44, a first O-belt 45, a second O-belt 46, a drive shaft 47, and a drive component 41. The drive shaft 47 is horizontally arranged and its axis is perpendicular to the conveying direction of the box conveyor line 6. The drive component 41 is drivenly connected to the drive shaft 47 to drive the drive shaft 47 to rotate. The driving synchronous pulley 42 is mounted on the drive shaft 47. The first driven synchronous pulley 43 and the second driven synchronous pulley 44 are arranged vertically in sequence, that is, their axes are vertically arranged and perpendicular to the axis of the driving synchronous pulley 42. The second driven synchronous pulley is located at the rear end of the first driven synchronous pulley 43. The driving synchronous pulley 42 and the first driven synchronous pulley 43 are connected by a semi-cross transmission via the first O-belt 45. The drive component 41 drives the transmission shaft 47 and the active synchronous pulley 42 to rotate. The active synchronous pulley 42 drives the first O-belt 45 to run. The side of the first O-belt 45 closest to the box conveyor line 6 can contact the outer surface of the lower tongue 22 of the packaging box 2 and run obliquely upward along the conveying direction of the box conveyor line 6, guiding the lower tongue 22 of the packaging box 2 to gradually lift up and bend upward to fold the tongue. The first driven synchronous pulley 43 and the second driven synchronous pulley 44 are connected by the second O-belt 46 through the opening. The first driven synchronous pulley 43 drives the second O-belt 46 to run. The side of the second O-belt 46 facing the packaging box 2 can contact the outer surface of the lower tongue 22 after folding and is consistent with the conveying direction of the box conveyor line 6, so as to press the lower tongue 22 of the packaging box 2 to facilitate the hot melt adhesive to bond under pressure.

[0019] The first driven synchronous pulley 43 and the second driven synchronous pulley 44 are respectively mounted on the mandrel via bearings, and the mandrel is mounted on the frame 1. The first O-belt 45 and the second O-belt 46 move together with the packaging box 2 and are in a relatively stationary state with the top cover surface of the packaging box 2. The first O-belt 45 and the second O-belt 46 will not cause friction damage to the top cover surface.

[0020] In this embodiment, the guide rod 3 and the follower flap assembly 4 are each arranged in two sets on both sides of the box conveyor line 6, for sealing both sides of the packaging box 2. The drive shaft 47 is horizontally mounted on the bearing seat 48 via bearings, and the bearing seat 48 is mounted on the frame 1. The guide rod 3 and the follower flap assembly 4 are also mounted on the frame 1.

[0021] In one embodiment, both the driving synchronous pulley 42 and the first driven synchronous pulley 43 are provided with several parallel grooves for mounting the first O-belts. The first O-belts run in these grooves, and several first O-belts 45 are mounted between the driving synchronous pulley 42 and the first driven synchronous pulley 43. The first O-belt 45 on the driving synchronous pulley 42 closest to the box conveyor line 6 is wound around the bottom of the first driven synchronous pulley 43, and the first O-belt 45 on the driving synchronous pulley 42 farthest from the box conveyor line 6 is wound around the top of the first driven synchronous pulley 43. This results in the first O-belts 45 having an upward slant on the side closest to the box conveyor line 6, so that the lower tongue 22 of the packaging box 2 gradually folds upward under the guidance of the first O-belts 45 until the box is completely sealed. In this embodiment, three first O-belts 45 are provided.

[0022] In one embodiment, both the first driven synchronous pulley 43 and the second driven synchronous pulley 44 are provided with a plurality of parallel grooves for mounting the second O-belt. The second O-belt runs in these grooves, and a plurality of second O-belts 46 are mounted parallel between the first driven synchronous pulley 43 and the second driven synchronous pulley 44 to apply uniform pressure to the folded lower tongue 22 to compact the hot melt adhesive. In this embodiment, two second O-belts 46 are provided.

[0023] The driving component 41 serves to drive the transmission shaft 47 to rotate. It can be a conventional driving structure. In this embodiment, the driving component 41 includes a servo motor 411, a driving bevel gear 412, and a driven bevel gear 413. The servo motor 411 is vertically arranged, the driving bevel gear 412 is driven by the servo motor 411, and the driven bevel gear 413 meshes with the driving bevel gear 412. The driven bevel gear 413 is mounted on the transmission shaft 47 to drive the transmission shaft 47 to rotate. The bevel gear assembly allows for changing the driving direction and facilitates structural layout.

[0024] To improve the adaptability of the equipment, the guide rod 3 is mounted on the adjustable lifting bracket 5, which is fixed to the frame 1. The adjustable lifting bracket 5 includes a support frame 51, a lead screw and nut assembly 52, an adjusting handwheel 53, and a connecting plate 54. The lead screw and nut assembly 52 is vertically mounted on the support frame 51. The adjusting handwheel 53 is connected to the lead screw of the lead screw and nut assembly 52. ​​One end of the connecting plate 54 is connected to the drive nut of the lead screw and nut assembly 52. ​​The guide rod 3 is connected to the other end of the connecting plate 54. By adjusting the handwheel 53, the lead screw is driven to rotate, which in turn drives the drive nut and the connecting plate 54 to move up and down along the lead screw, thereby adjusting the height of the guide rod 3 to accommodate packaging boxes 2 of different heights.

[0025] The above detailed description is a specific description of a feasible embodiment of the present utility model. This embodiment is not intended to limit the patent scope of the present utility model. All equivalent implementations or modifications that do not depart from the present utility model should be included in the patent scope of this case.

Claims

1. A follow-up sealing mechanism, characterized in that, The system includes a guide rod and a follower flap assembly sequentially arranged beside the box conveyor line. The guide rod is located at the front end of the follower flap assembly. The box conveyor line is used to transport packaging boxes with flaps folded on both sides. The front end of the guide rod is higher than the horizontal height of the upper flap, and its rear end gradually bends downward along the conveying direction of the box conveyor line and extends to connect with the follower flap assembly. The guide rod is used to guide the upper flap of the packaging box to bend downward to fold the flap. The follower flap assembly includes a driving synchronous pulley, a first driven synchronous pulley, a second driven synchronous pulley, a first O-belt, a second O-belt, a drive shaft, and a drive component. The drive shaft is horizontally arranged and its axis is perpendicular to the conveying direction of the box conveyor line. The drive component is drivenly connected to the drive shaft to drive the box. The drive shaft rotates, and the active synchronous pulley is mounted on the drive shaft. The first driven synchronous pulley and the second driven synchronous pulley are vertically arranged at the rear end of the active synchronous pulley. The active synchronous pulley and the first driven synchronous pulley are connected by a semi-cross transmission of the first O-belt. The side of the first O-belt near the box conveyor line can contact the outer surface of the lower tongue of the packaging box and run obliquely upward along the conveying direction of the box conveyor line, guiding the lower tongue to bend upward to fold the tongue. The first driven synchronous pulley and the second driven synchronous pulley are connected by a transmission of the second O-belt opening. The side of the second O-belt facing the packaging box can contact the outer surface of the lower tongue after folding the tongue and is consistent with the conveying direction of the box conveyor line, so as to press the lower tongue of the packaging box accordingly.

2. The follow-up sealing mechanism according to claim 1, characterized in that, Both the driving synchronous pulley and the first driven synchronous pulley are provided with several parallel grooves for fitting the first O-belts. Several first O-belts are fitted between the driving synchronous pulley and the first driven synchronous pulley. The first O-belt on the driving synchronous pulley that is closest to the box conveyor line is wrapped around the bottom of the first driven synchronous pulley, and the first O-belt on the driving synchronous pulley that is farthest from the box conveyor line is wrapped around the top of the first driven synchronous pulley. This makes the side of the first O-belts closest to the box conveyor line slant upwards, so that the bottom tongue of the packaging box can be gradually folded upwards under the guidance of the first O-belts until the box is completely sealed.

3. The follow-up sealing mechanism according to claim 1, characterized in that, The first driven synchronous pulley and the second driven synchronous pulley are each provided with a plurality of parallel grooves for fitting the second O-belt. The plurality of the second O-belts are fitted in parallel between the first driven synchronous pulley and the second driven synchronous pulley, so as to apply uniform pressure to the folded lower tongue.

4. The follow-up sealing mechanism according to claim 1, characterized in that, The driving component includes a servo motor, a driving bevel gear, and a driven bevel gear. The servo motor is vertically arranged, the driving bevel gear is driven and connected to the servo motor, the driven bevel gear meshes with the driving bevel gear, and the driven bevel gear is mounted on the transmission shaft.

5. The follow-up sealing mechanism according to claim 1, characterized in that, The drive shaft is horizontally mounted on a bearing housing via bearings.

6. The follow-up sealing mechanism according to claim 1, characterized in that, The guide rod and the follow-up flap assembly each have two sets respectively set on both sides of the box conveyor line, used to seal both sides of the packaging box.

7. The follow-up sealing mechanism according to claim 1, characterized in that, The guide rod is mounted on an adjustable lifting bracket, which includes a support frame, a lead screw and nut assembly, an adjusting handwheel, and a connecting plate. The lead screw and nut assembly is vertically mounted on the support frame. The adjusting handwheel is connected to the lead screw of the lead screw and nut assembly. One end of the connecting plate is connected to the drive nut of the lead screw and nut assembly, and the guide rod is connected to the other end of the connecting plate.

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